sourcemod-central: sourcepawn/compiler/sc1.c@f3b8bbe17f85 (annotated)

dvander@27	1	/* Pawn compiler
dvander@27	2	*
dvander@27	3	* Function and variable definition and declaration, statement parser.
dvander@27	4	*
dvander@27	5	* Copyright (c) ITB CompuPhase, 1997-2006
dvander@27	6	*
dvander@27	7	* This software is provided "as-is", without any express or implied warranty.
dvander@27	8	* In no event will the authors be held liable for any damages arising from
dvander@27	9	* the use of this software.
dvander@27	10	*
dvander@27	11	* Permission is granted to anyone to use this software for any purpose,
dvander@27	12	* including commercial applications, and to alter it and redistribute it
dvander@27	13	* freely, subject to the following restrictions:
dvander@27	14	*
dvander@27	15	* 1. The origin of this software must not be misrepresented; you must not
dvander@27	16	* claim that you wrote the original software. If you use this software in
dvander@27	17	* a product, an acknowledgment in the product documentation would be
dvander@27	18	* appreciated but is not required.
dvander@27	19	* 2. Altered source versions must be plainly marked as such, and must not be
dvander@27	20	* misrepresented as being the original software.
dvander@27	21	* 3. This notice may not be removed or altered from any source distribution.
dvander@27	22	*
dvander@365	23	* Version: $Id$
dvander@27	24	*/
dvander@27	25	#include <assert.h>
dvander@27	26	#include <ctype.h>
dvander@27	27	#include <limits.h>
dvander@27	28	#include <stdarg.h>
dvander@27	29	#include <stdio.h>
dvander@27	30	#include <stdlib.h>
dvander@27	31	#include <string.h>
dvander@27	32
dvander@27	33	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined __MSDOS__
dvander@27	34	#include <conio.h>
dvander@27	35	#include <io.h>
dvander@27	36	#endif
dvander@27	37
dvander@27	38	#if defined LINUX \|\| defined __FreeBSD__ \|\| defined __OpenBSD__
dvander@27	39	#include <sclinux.h>
dvander@27	40	#include <binreloc.h> /* from BinReloc, see www.autopackage.org */
dvander@27	41	#endif
dvander@27	42
dvander@27	43	#if defined FORTIFY
dvander@27	44	#include <alloc/fortify.h>
dvander@27	45	#endif
dvander@27	46
dvander@27	47	#if defined __BORLANDC__ \|\| defined __WATCOMC__
dvander@27	48	#include <dos.h>
dvander@27	49	static unsigned total_drives; /* dummy variable */
dvander@27	50	#define dos_setdrive(i) _dos_setdrive(i,&total_drives)
dvander@27	51	#elif defined _MSC_VER && defined _WIN32
dvander@27	52	#include <direct.h> /* for _chdrive() */
dvander@27	53	#define dos_setdrive(i) _chdrive(i)
dvander@27	54	#endif
dvander@27	55	#if defined __BORLANDC__
dvander@27	56	#include <dir.h> /* for chdir() */
dvander@27	57	#elif defined __WATCOMC__
dvander@27	58	#include <direct.h> /* for chdir() */
dvander@27	59	#endif
dvander@27	60	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	61	#include <windows.h>
dvander@27	62	#endif
dvander@27	63
dvander@27	64	#include <time.h>
dvander@27	65
dvander@27	66	#include "lstring.h"
dvander@27	67	#include "sc.h"
dvander@386	68	#include "svn_version.h"
dvander@116	69	#include "sctracker.h"
dvander@386	70	#define VERSION_STR "3.2.3636"
dvander@27	71	#define VERSION_INT 0x0302
dvander@27	72
ds@632	73	int pc_anytag = 0;
dvander@132	74	int pc_functag = 0;
dvander@151	75	int pc_tag_string = 0;
dvander@132	76
dvander@27	77	static void resetglobals(void);
dvander@27	78	static void initglobals(void);
dvander@27	79	static char get_extension(char filename);
dvander@27	80	static void setopt(int argc,char *argv,char oname,char ename,char pname,
dvander@27	81	char rname,char codepage);
dvander@27	82	static void setconfig(char *root);
dvander@27	83	static void setcaption(void);
dvander@27	84	static void about(void);
dvander@27	85	static void setconstants(void);
dvander@27	86	static void parse(void);
dvander@27	87	static void dumplits(void);
dvander@27	88	static void dumpzero(int count);
dvander@27	89	static void declfuncvar(int fpublic,int fstatic,int fstock,int fconst);
dvander@27	90	static void declglb(char *firstname,int firsttag,int fpublic,int fstatic,
dvander@27	91	int stock,int fconst);
dvander@167	92	static void declstructvar(char firstname,int fpublic, pstruct_t pstruct);
dvander@27	93	static int declloc(int fstatic);
dvander@27	94	static void decl_const(int table);
dvander@167	95	static void declstruct();
dvander@27	96	static void decl_enum(int table);
dvander@27	97	static cell needsub(int tag,constvalue *enumroot);
dvander@27	98	static void initials(int ident,int tag,cell *size,int dim[],int numdim,
dvander@27	99	constvalue *enumroot);
dvander@27	100	static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dvander@27	101	int startlit,int counteddim[],constvalue *lastdim,
dvander@27	102	constvalue enumroot,int errorfound);
dvander@27	103	static cell initvector(int ident,int tag,cell size,int fillzero,
dvander@27	104	constvalue enumroot,int errorfound);
dvander@27	105	static cell init(int ident,int tag,int errorfound);
dvander@27	106	static int getstates(const char *funcname);
dvander@27	107	static void attachstatelist(symbol *sym, int state_id);
dvander@27	108	static void funcstub(int fnative);
dvander@27	109	static int newfunc(char *firstname,int firsttag,int fpublic,int fstatic,int stock);
dvander@27	110	static int declargs(symbol *sym,int chkshadow);
dvander@27	111	static void doarg(char *name,int ident,int offset,int tags[],int numtags,
dvander@27	112	int fpublic,int fconst,int chkshadow,arginfo *arg);
dvander@27	113	static void make_report(symbol root,FILE log,char *sourcefile);
dvander@27	114	static void reduce_referrers(symbol *root);
dvander@27	115	static long max_stacksize(symbol root,int recursion);
dvander@27	116	static int testsymbols(symbol *root,int level,int testlabs,int testconst);
dvander@27	117	static void destructsymbols(symbol *root,int level);
dvander@27	118	static constvalue find_constval_byval(constvalue table,cell val);
faluco@62	119	static symbol fetchlab(char name);
dvander@27	120	static void statement(int *lastindent,int allow_decl);
faluco@62	121	static void compound(int stmt_sameline,int starttok);
faluco@62	122	static int test(int label,int parens,int invert);
dvander@27	123	static int doexpr(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@27	124	int tag,symbol *symptr,int chkfuncresult);
dvander@152	125	static int doexpr2(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@152	126	int tag,symbol symptr,int chkfuncresult,value lval);
dvander@27	127	static void doassert(void);
dvander@27	128	static void doexit(void);
faluco@62	129	static int doif(void);
faluco@62	130	static int dowhile(void);
faluco@62	131	static int dodo(void);
faluco@62	132	static int dofor(void);
dvander@27	133	static void doswitch(void);
dvander@27	134	static void dogoto(void);
dvander@27	135	static void dolabel(void);
dvander@27	136	static void doreturn(void);
dvander@338	137	static void dofuncenum(int listmode);
dvander@27	138	static void dobreak(void);
dvander@27	139	static void docont(void);
dvander@27	140	static void dosleep(void);
dvander@27	141	static void dostate(void);
dvander@27	142	static void addwhile(int *ptr);
dvander@27	143	static void delwhile(void);
dvander@27	144	static int *readwhile(void);
dvander@27	145	static void inst_datetime_defines(void);
dvander@1978	146	static void inst_binary_name(char *binfname);
dvander@27	147
faluco@62	148	enum {
faluco@62	149	TEST_PLAIN, /* no parentheses */
faluco@62	150	TEST_THEN, /* '(' <expr> ')' or <expr> 'then' */
faluco@62	151	TEST_DO, /* '(' <expr> ')' or <expr> 'do' */
faluco@62	152	TEST_OPT, /* '(' <expr> ')' or <expr> */
faluco@62	153	};
dvander@27	154	static int norun = 0; /* the compiler never ran */
faluco@62	155	static int autozero = 1; /* if 1 will zero out the variable, if 0 omit the zeroing */
dvander@27	156	static int lastst = 0; /* last executed statement type */
dvander@27	157	static int nestlevel = 0; /* number of active (open) compound statements */
faluco@62	158	static int endlessloop= 0; /* nesting level of endless loop */
dvander@27	159	static int rettype = 0; /* the type that a "return" expression should have */
dvander@27	160	static int skipinput = 0; /* number of lines to skip from the first input file */
dvander@27	161	static int optproccall = TRUE; /* support "procedure call" */
dvander@27	162	static int verbosity = 1; /* verbosity level, 0=quiet, 1=normal, 2=verbose */
dvander@27	163	static int sc_reparse = 0; /* needs 3th parse because of changed prototypes? */
dvander@27	164	static int sc_parsenum = 0; /* number of the extra parses */
dvander@27	165	static int wq[wqTABSZ]; /* "while queue", internal stack for nested loops */
dvander@27	166	static int wqptr; / pointer to next entry */
dvander@27	167	#if !defined SC_LIGHT
dvander@27	168	static char sc_rootpath[_MAX_PATH];
dvander@27	169	static char sc_documentation=NULL;/ main documentation */
dvander@27	170	#endif
dvander@27	171	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	172	static HWND hwndFinish = 0;
dvander@27	173	#endif
dvander@27	174
dvander@510	175	SC_VDECL int glbstringread = 0;
dvander@406	176	char g_tmpfile[_MAX_PATH] = {0};
dvander@406	177
dvander@27	178	/* "main" of the compiler
dvander@27	179	*/
dvander@27	180	#if defined __cplusplus
dvander@27	181	extern "C"
dvander@27	182	#endif
dvander@27	183	int pc_compile(int argc, char *argv[])
dvander@27	184	{
dvander@27	185	int entry,i,jmpcode;
dvander@27	186	int retcode;
dvander@27	187	char incfname[_MAX_PATH];
dvander@27	188	char reportname[_MAX_PATH];
dvander@27	189	char codepage[MAXCODEPAGE+1];
dvander@27	190	FILE *binf;
dvander@27	191	void *inpfmark;
dvander@27	192	int lcl_packstr,lcl_needsemicolon,lcl_tabsize;
dvander@27	193	#if !defined SC_LIGHT
dvander@27	194	int hdrsize=0;
dvander@27	195	#endif
dvander@27	196	char *ptr;
dvander@27	197
dvander@27	198	/* set global variables to their initial value */
dvander@27	199	binf=NULL;
dvander@27	200	initglobals();
dvander@27	201	errorset(sRESET,0);
dvander@27	202	errorset(sEXPRRELEASE,0);
dvander@27	203	lexinit();
dvander@27	204
dvander@27	205	/* make sure that we clean up on a fatal error; do this before the first
dvander@27	206	* call to error(). */
dvander@27	207	if ((jmpcode=setjmp(errbuf))!=0)
dvander@27	208	goto cleanup;
dvander@27	209
dvander@27	210	/* allocate memory for fixed tables */
dvander@27	211	inpfname=(char*)malloc(_MAX_PATH);
dvander@27	212	if (inpfname==NULL)
ds@841	213	error(123); /* insufficient memory */
dvander@27	214	litq=(cell)malloc(litmaxsizeof(cell));
dvander@27	215	if (litq==NULL)
ds@841	216	error(123); /* insufficient memory */
dvander@27	217	if (!phopt_init())
ds@841	218	error(123); /* insufficient memory */
dvander@27	219
dvander@27	220	setopt(argc,argv,outfname,errfname,incfname,reportname,codepage);
dvander@27	221	strcpy(binfname,outfname);
dvander@27	222	ptr=get_extension(binfname);
dvander@27	223	if (ptr!=NULL && stricmp(ptr,".asm")==0)
dvander@27	224	set_extension(binfname,".smx",TRUE);
dvander@27	225	else
dvander@27	226	set_extension(binfname,".smx",FALSE);
dvander@27	227	/* set output names that depend on the input name */
dvander@27	228	if (sc_listing)
dvander@27	229	set_extension(outfname,".lst",TRUE);
dvander@27	230	else
dvander@27	231	set_extension(outfname,".asm",TRUE);
dvander@27	232	if (strlen(errfname)!=0)
dvander@27	233	remove(errfname); /* delete file on startup */
dvander@27	234	else if (verbosity>0)
dvander@27	235	setcaption();
dvander@27	236	setconfig(argv[0]); /* the path to the include and codepage files */
dvander@27	237	sc_ctrlchar_org=sc_ctrlchar;
dvander@27	238	lcl_packstr=sc_packstr;
dvander@27	239	lcl_needsemicolon=sc_needsemicolon;
dvander@27	240	lcl_tabsize=sc_tabsize;
dvander@27	241	#if !defined NO_CODEPAGE
dvander@27	242	if (!cp_set(codepage)) /* set codepage */
ds@841	243	error(128); /* codepage mapping file not found */
dvander@27	244	#endif
dvander@27	245	/* optionally create a temporary input file that is a collection of all
dvander@27	246	* input files
dvander@27	247	*/
dvander@27	248	assert(get_sourcefile(0)!=NULL); /* there must be at least one source file */
dvander@27	249	if (get_sourcefile(1)!=NULL) {
dvander@27	250	/* there are at least two or more source files */
dvander@27	251	char tname,sname;
dvander@27	252	FILE ftmp,fsrc;
dvander@27	253	int fidx;
dvander@27	254	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	255	tname=_tempnam(NULL,"pawn");
dvander@27	256	#elif defined __MSDOS__ \|\| defined _Windows
dvander@27	257	tname=tempnam(NULL,"pawn");
dvander@27	258	#elif defined(MACOS) && !defined(__MACH__)
dvander@27	259	/* tempnam is not supported for the Macintosh CFM build. */
ds@841	260	error(124,get_sourcefile(1));
dvander@27	261	tname=NULL;
dvander@27	262	sname=NULL;
dvander@27	263	#else
dvander@27	264	tname=tempnam(NULL,"pawn");
dvander@27	265	#endif
dvander@27	266	ftmp=(FILE*)pc_createsrc(tname);
dvander@27	267	for (fidx=0; (sname=get_sourcefile(fidx))!=NULL; fidx++) {
dvander@27	268	unsigned char tstring[128];
dvander@27	269	fsrc=(FILE*)pc_opensrc(sname);
dvander@27	270	if (fsrc==NULL) {
dvander@406	271	pc_closesrc(ftmp);
dvander@406	272	remove(tname);
dvander@27	273	strcpy(inpfname,sname); /* avoid invalid filename */
ds@841	274	error(120,sname);
dvander@27	275	} /* if */
dvander@406	276	pc_writesrc(ftmp,(unsigned char*)"#file \"");
dvander@27	277	pc_writesrc(ftmp,(unsigned char*)sname);
dvander@406	278	pc_writesrc(ftmp,(unsigned char*)"\"\n");
dvander@406	279	while (!pc_eofsrc(fsrc) && pc_readsrc(fsrc,tstring,sizeof tstring)) {
dvander@27	280	pc_writesrc(ftmp,tstring);
dvander@27	281	} /* while */
dvander@27	282	pc_closesrc(fsrc);
dvander@27	283	} /* for */
dvander@27	284	pc_closesrc(ftmp);
dvander@27	285	strcpy(inpfname,tname);
dvander@406	286	strcpy(g_tmpfile,tname);
dvander@27	287	free(tname);
dvander@27	288	} else {
dvander@27	289	strcpy(inpfname,get_sourcefile(0));
dvander@27	290	} /* if */
dvander@27	291	inpf_org=(FILE*)pc_opensrc(inpfname);
dvander@27	292	if (inpf_org==NULL)
ds@841	293	error(120,inpfname);
dvander@27	294	freading=TRUE;
dvander@27	295	outf=(FILE)pc_openasm(outfname); / first write to assembler file (may be temporary) */
dvander@27	296	if (outf==NULL)
ds@841	297	error(121,outfname);
dvander@27	298	/* immediately open the binary file, for other programs to check */
dvander@27	299	if (sc_asmfile \|\| sc_listing) {
dvander@27	300	binf=NULL;
dvander@27	301	} else {
dvander@27	302	binf=(FILE*)pc_openbin(binfname);
dvander@27	303	if (binf==NULL)
ds@841	304	error(121,binfname);
dvander@27	305	} /* if */
dvander@27	306	setconstants(); /* set predefined constants and tagnames */
dvander@27	307	for (i=0; i<skipinput; i++) /* skip lines in the input file */
dvander@27	308	if (pc_readsrc(inpf_org,pline,sLINEMAX)!=NULL)
dvander@27	309	fline++; /* keep line number up to date */
dvander@27	310	skipinput=fline;
dvander@27	311	sc_status=statFIRST;
dvander@27	312	/* write starting options (from the command line or the configuration file) */
dvander@27	313	if (sc_listing) {
dvander@27	314	char string[150];
dvander@27	315	sprintf(string,"#pragma ctrlchar 0x%02x\n"
dvander@27	316	"#pragma pack %s\n"
dvander@27	317	"#pragma semicolon %s\n"
dvander@27	318	"#pragma tabsize %d\n",
dvander@27	319	sc_ctrlchar,
dvander@27	320	sc_packstr ? "true" : "false",
dvander@27	321	sc_needsemicolon ? "true" : "false",
dvander@27	322	sc_tabsize);
dvander@27	323	pc_writeasm(outf,string);
dvander@27	324	setfiledirect(inpfname);
dvander@27	325	} /* if */
dvander@27	326	/* do the first pass through the file (or possibly two or more "first passes") */
dvander@27	327	sc_parsenum=0;
dvander@27	328	inpfmark=pc_getpossrc(inpf_org);
dvander@27	329	do {
dvander@27	330	/* reset "defined" flag of all functions and global variables */
dvander@27	331	reduce_referrers(&glbtab);
dvander@27	332	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@27	333	#if !defined NO_DEFINE
dvander@27	334	delete_substtable();
dvander@27	335	inst_datetime_defines();
dvander@1978	336	inst_binary_name(binfname);
dvander@27	337	#endif
dvander@27	338	resetglobals();
dvander@167	339	pstructs_free();
dvander@132	340	funcenums_free();
dvander@27	341	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	342	sc_packstr=lcl_packstr;
dvander@27	343	sc_needsemicolon=lcl_needsemicolon;
dvander@27	344	sc_tabsize=lcl_tabsize;
dvander@27	345	errorset(sRESET,0);
dvander@27	346	/* reset the source file */
dvander@27	347	inpf=inpf_org;
dvander@27	348	freading=TRUE;
dvander@27	349	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	350	fline=skipinput; /* reset line number */
dvander@27	351	sc_reparse=FALSE; /* assume no extra passes */
dvander@27	352	sc_status=statFIRST; /* resetglobals() resets it to IDLE */
dvander@27	353
dvander@27	354	if (strlen(incfname)>0) {
dvander@27	355	if (strcmp(incfname,sDEF_PREFIX)==0) {
dvander@27	356	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" */
dvander@27	357	} else {
dvander@27	358	if (!plungequalifiedfile(incfname)) /* parse "prefix" include file */
ds@841	359	error(120,incfname); /* cannot read from ... (fatal error) */
dvander@27	360	} /* if */
dvander@27	361	} /* if */
dvander@27	362	preprocess(); /* fetch first line */
dvander@27	363	parse(); /* process all input */
dvander@27	364	sc_parsenum++;
dvander@27	365	} while (sc_reparse);
dvander@27	366
dvander@27	367	/* second (or third) pass */
dvander@27	368	sc_status=statWRITE; /* set, to enable warnings */
dvander@27	369	state_conflict(&glbtab);
dvander@27	370
dvander@27	371	/* write a report, if requested */
dvander@27	372	#if !defined SC_LIGHT
dvander@27	373	if (sc_makereport) {
dvander@27	374	FILE *frep=stdout;
dvander@27	375	if (strlen(reportname)>0)
dvander@27	376	frep=fopen(reportname,"wb"); /* avoid translation of \n to \r\n in DOS/Windows */
dvander@27	377	if (frep!=NULL) {
dvander@27	378	make_report(&glbtab,frep,get_sourcefile(0));
dvander@27	379	if (strlen(reportname)>0)
dvander@27	380	fclose(frep);
dvander@27	381	} /* if */
dvander@27	382	if (sc_documentation!=NULL) {
dvander@27	383	free(sc_documentation);
dvander@27	384	sc_documentation=NULL;
dvander@27	385	} /* if */
dvander@27	386	} /* if */
dvander@27	387	#endif
dvander@27	388	if (sc_listing)
dvander@27	389	goto cleanup;
dvander@27	390
dvander@27	391	/* ??? for re-parsing the listing file instead of the original source
dvander@27	392	* file (and doing preprocessing twice):
dvander@27	393	* - close input file, close listing file
dvander@27	394	* - re-open listing file for reading (inpf)
dvander@27	395	* - open assembler file (outf)
dvander@27	396	*/
dvander@27	397
dvander@27	398	/* reset "defined" flag of all functions and global variables */
dvander@27	399	reduce_referrers(&glbtab);
dvander@27	400	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@132	401	funcenums_free();
dvander@167	402	pstructs_free();
dvander@27	403	#if !defined NO_DEFINE
dvander@27	404	delete_substtable();
dvander@27	405	inst_datetime_defines();
dvander@1980	406	inst_binary_name(binfname);
dvander@27	407	#endif
dvander@27	408	resetglobals();
dvander@27	409	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	410	sc_packstr=lcl_packstr;
dvander@27	411	sc_needsemicolon=lcl_needsemicolon;
dvander@27	412	sc_tabsize=lcl_tabsize;
dvander@27	413	errorset(sRESET,0);
dvander@27	414	/* reset the source file */
dvander@27	415	inpf=inpf_org;
dvander@27	416	freading=TRUE;
dvander@27	417	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	418	fline=skipinput; /* reset line number */
dvander@27	419	lexinit(); /* clear internal flags of lex() */
dvander@27	420	sc_status=statWRITE; /* allow to write --this variable was reset by resetglobals() */
dvander@27	421	writeleader(&glbtab);
dvander@27	422	insert_dbgfile(inpfname);
dvander@27	423	if (strlen(incfname)>0) {
dvander@27	424	if (strcmp(incfname,sDEF_PREFIX)==0)
dvander@27	425	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" (again) */
dvander@27	426	else
dvander@27	427	plungequalifiedfile(incfname); /* parse implicit include file (again) */
dvander@27	428	} /* if */
dvander@27	429	preprocess(); /* fetch first line */
dvander@27	430	parse(); /* process all input */
dvander@27	431	/* inpf is already closed when readline() attempts to pop of a file */
dvander@27	432	writetrailer(); /* write remaining stuff */
dvander@27	433
dvander@27	434	entry=testsymbols(&glbtab,0,TRUE,FALSE); /* test for unused or undefined
dvander@27	435	* functions and variables */
dvander@27	436	if (!entry)
dvander@27	437	error(13); /* no entry point (no public functions) */
dvander@27	438
dvander@27	439	cleanup:
dvander@27	440	if (inpf!=NULL) /* main source file is not closed, do it now */
dvander@27	441	pc_closesrc(inpf);
dvander@27	442	/* write the binary file (the file is already open) */
dvander@27	443	if (!(sc_asmfile \|\| sc_listing) && errnum==0 && jmpcode==0) {
dvander@27	444	assert(binf!=NULL);
dvander@27	445	pc_resetasm(outf); /* flush and loop back, for reading */
dvander@27	446	#if !defined SC_LIGHT
dvander@27	447	hdrsize=
dvander@27	448	#endif
dvander@27	449	assemble(binf,outf); /* assembler file is now input */
dvander@27	450	} /* if */
dvander@27	451	if (outf!=NULL) {
dvander@27	452	pc_closeasm(outf,!(sc_asmfile \|\| sc_listing));
dvander@27	453	outf=NULL;
dvander@27	454	} /* if */
dvander@27	455	if (binf!=NULL) {
dvander@27	456	pc_closebin(binf,errnum!=0);
dvander@27	457	binf=NULL;
dvander@27	458	} /* if */
dvander@27	459
dvander@27	460	#if !defined SC_LIGHT
dvander@27	461	if (errnum==0 && strlen(errfname)==0) {
dvander@1164	462	#if 0 //bug in compiler -- someone's script caused this function to infrecurs
dvander@27	463	int recursion;
dvander@27	464	long stacksize=max_stacksize(&glbtab,&recursion);
dvander@1164	465	#endif
dvander@27	466	int flag_exceed=0;
dvander@27	467	if (pc_amxlimit>0) {
dvander@27	468	long totalsize=hdrsize+code_idx;
dvander@27	469	if (pc_amxram==0)
dvander@27	470	totalsize+=(glb_declared+pc_stksize)*sizeof(cell);
dvander@27	471	if (totalsize>=pc_amxlimit)
dvander@27	472	flag_exceed=1;
dvander@27	473	} /* if */
dvander@27	474	if (pc_amxram>0 && (glb_declared+pc_stksize)*sizeof(cell)>=(unsigned long)pc_amxram)
dvander@27	475	flag_exceed=1;
dvander@1164	476	if (!norun && (sc_debug & sSYMBOLIC)!=0 \|\| verbosity>=2 \|\| flag_exceed) {
dvander@27	477	pc_printf("Header size: %8ld bytes\n", (long)hdrsize);
dvander@27	478	pc_printf("Code size: %8ld bytes\n", (long)code_idx);
dvander@27	479	pc_printf("Data size: %8ld bytes\n", (long)glb_declared*sizeof(cell));
dvander@27	480	pc_printf("Stack/heap size: %8ld bytes; ", (long)pc_stksize*sizeof(cell));
dvander@1164	481	#if 0
dvander@27	482	pc_printf("estimated max. usage");
dvander@27	483	if (recursion)
faluco@62	484	pc_printf(": unknown, due to recursion\n");
dvander@27	485	else if ((pc_memflags & suSLEEP_INSTR)!=0)
faluco@62	486	pc_printf(": unknown, due to the \"sleep\" instruction\n");
dvander@27	487	else
dvander@27	488	pc_printf("=%ld cells (%ld bytes)\n",stacksize,stacksize*sizeof(cell));
dvander@1164	489	#endif
dvander@27	490	pc_printf("Total requirements:%8ld bytes\n", (long)hdrsize+(long)code_idx+(long)glb_declaredsizeof(cell)+(long)pc_stksizesizeof(cell));
dvander@27	491	} /* if */
dvander@27	492	if (flag_exceed)
ds@841	493	error(126,pc_amxlimit+pc_amxram); /* this causes a jump back to label "cleanup" */
dvander@27	494	} /* if */
dvander@27	495	#endif
dvander@27	496
dvander@406	497	if (g_tmpfile[0] != '\0') {
dvander@406	498	remove(g_tmpfile);
dvander@406	499	}
dvander@27	500	if (inpfname!=NULL) {
dvander@27	501	free(inpfname);
dvander@27	502	} /* if */
dvander@27	503	if (litq!=NULL)
dvander@27	504	free(litq);
dvander@27	505	phopt_cleanup();
dvander@27	506	stgbuffer_cleanup();
dvander@27	507	clearstk();
dvander@27	508	assert(jmpcode!=0 \|\| loctab.next==NULL);/* on normal flow, local symbols
dvander@27	509	* should already have been deleted */
dvander@27	510	delete_symbols(&loctab,0,TRUE,TRUE); /* delete local variables if not yet
dvander@27	511	* done (i.e. on a fatal error) */
dvander@27	512	delete_symbols(&glbtab,0,TRUE,TRUE);
dvander@27	513	delete_consttable(&tagname_tab);
dvander@27	514	delete_consttable(&libname_tab);
dvander@27	515	delete_consttable(&sc_automaton_tab);
dvander@27	516	delete_consttable(&sc_state_tab);
dvander@27	517	state_deletetable();
dvander@27	518	delete_aliastable();
dvander@27	519	delete_pathtable();
dvander@27	520	delete_sourcefiletable();
dvander@27	521	delete_dbgstringtable();
dvander@175	522	funcenums_free();
dvander@175	523	pstructs_free();
dvander@27	524	#if !defined NO_DEFINE
dvander@27	525	delete_substtable();
dvander@27	526	#endif
dvander@27	527	#if !defined SC_LIGHT
dvander@27	528	delete_docstringtable();
dvander@27	529	if (sc_documentation!=NULL)
dvander@27	530	free(sc_documentation);
dvander@27	531	#endif
dvander@27	532	delete_autolisttable();
dvander@27	533	if (errnum!=0) {
dvander@27	534	if (strlen(errfname)==0)
dvander@27	535	pc_printf("\n%d Error%s.\n",errnum,(errnum>1) ? "s" : "");
dvander@27	536	retcode=1;
dvander@27	537	} else if (warnnum!=0){
dvander@27	538	if (strlen(errfname)==0)
dvander@27	539	pc_printf("\n%d Warning%s.\n",warnnum,(warnnum>1) ? "s" : "");
dvander@27	540	retcode=0; /* use "0", so that MAKE and similar tools continue */
dvander@27	541	} else {
dvander@27	542	retcode=jmpcode;
dvander@27	543	if (retcode==0 && verbosity>=2)
dvander@27	544	pc_printf("\nDone.\n");
dvander@27	545	} /* if */
dvander@27	546	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	547	if (IsWindow(hwndFinish))
dvander@27	548	PostMessageA(hwndFinish,RegisterWindowMessageA("PawnNotify"),retcode,0L);
dvander@27	549	#endif
dvander@27	550	#if defined FORTIFY
dvander@27	551	Fortify_ListAllMemory();
dvander@27	552	#endif
dvander@27	553	return retcode;
dvander@27	554	}
dvander@27	555
dvander@27	556	#if defined __cplusplus
dvander@27	557	extern "C"
dvander@27	558	#endif
dvander@27	559	int pc_addconstant(char *name,cell value,int tag)
dvander@27	560	{
dvander@27	561	errorset(sFORCESET,0); /* make sure error engine is silenced */
dvander@27	562	sc_status=statIDLE;
dvander@27	563	add_constant(name,value,sGLOBAL,tag);
dvander@27	564	return 1;
dvander@27	565	}
dvander@27	566
dvander@1978	567	static void inst_binary_name(char *binfname)
dvander@1978	568	{
dvander@1978	569	size_t i, len;
dvander@1978	570	char *binptr;
dvander@1980	571	char newpath[512], newname[512];
dvander@1978	572
dvander@1978	573	binptr = NULL;
dvander@1978	574	len = strlen(binfname);
dvander@1978	575	for (i = len - 1; i >= 0 && i < len; i--)
dvander@1978	576	{
dvander@1978	577	if (binfname[i] == '/'
dvander@1978	578	#if defined WIN32 \|\| defined _WIN32
dvander@1978	579	\|\| binfname[i] == '\\'
dvander@1978	580	#endif
dvander@1978	581	)
dvander@1978	582	{
dvander@1978	583	binptr = &binfname[i + 1];
dvander@1978	584	break;
dvander@1978	585	}
dvander@1978	586	}
dvander@1978	587
dvander@1978	588	if (binptr == NULL)
dvander@1978	589	{
dvander@1978	590	binptr = binfname;
dvander@1978	591	}
dvander@1978	592
dvander@1980	593	snprintf(newpath, sizeof(newpath), "\"%s\"", binfname);
dvander@1980	594	snprintf(newname, sizeof(newname), "\"%s\"", binptr);
dvander@1980	595
dvander@1980	596	insert_subst("__BINARY_PATH__", newpath, 15);
dvander@1980	597	insert_subst("__BINARY_NAME__", newname, 15);
dvander@1978	598	}
dvander@1978	599
dvander@27	600	static void inst_datetime_defines(void)
dvander@27	601	{
dvander@27	602	char date[64];
dvander@27	603	char ltime[64];
dvander@27	604	time_t td;
dvander@27	605	struct tm *curtime;
dvander@27	606
dvander@27	607	time(&td);
dvander@27	608	curtime = localtime(&td);
dvander@761	609	strftime(date, 31, "\"%m/%d/%Y\"", curtime);
dvander@27	610	strftime(ltime, 31, "\"%H:%M:%S\"", curtime);
dvander@27	611
dvander@27	612	insert_subst("__DATE__", date, 8);
dvander@27	613	insert_subst("__TIME__", ltime, 8);
dvander@27	614	}
dvander@27	615
dvander@27	616	#if defined __cplusplus
dvander@27	617	extern "C"
dvander@27	618	#endif
dvander@27	619	int pc_addtag(char *name)
dvander@27	620	{
dvander@27	621	cell val;
dvander@27	622	constvalue *ptr;
dvander@27	623	int last,tag;
dvander@27	624
dvander@27	625	if (name==NULL) {
dvander@27	626	/* no tagname was given, check for one */
dvander@27	627	if (lex(&val,&name)!=tLABEL) {
dvander@27	628	lexpush();
dvander@27	629	return 0; /* untagged */
dvander@27	630	} /* if */
dvander@27	631	} /* if */
dvander@27	632
dvander@27	633	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@27	634	last=0;
dvander@27	635	ptr=tagname_tab.next;
dvander@27	636	while (ptr!=NULL) {
dvander@27	637	tag=(int)(ptr->value & TAGMASK);
dvander@27	638	if (strcmp(name,ptr->name)==0)
dvander@27	639	return tag; /* tagname is known, return its sequence number */
dvander@27	640	tag &= (int)~FIXEDTAG;
dvander@132	641	tag &= (int)~FUNCTAG;
dvander@27	642	if (tag>last)
dvander@27	643	last=tag;
dvander@27	644	ptr=ptr->next;
dvander@27	645	} /* while */
dvander@27	646
dvander@27	647	/* tagname currently unknown, add it */
dvander@27	648	tag=last+1; /* guaranteed not to exist already */
dvander@27	649	if (isupper(*name))
dvander@27	650	tag \|= (int)FIXEDTAG;
dvander@27	651	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@27	652	return tag;
dvander@27	653	}
dvander@27	654
dvander@132	655	int pc_addfunctag(char *name)
dvander@132	656	{
dvander@132	657	cell val;
dvander@132	658	constvalue *ptr;
dvander@132	659	int last,tag;
dvander@132	660
dvander@132	661	if (name==NULL) {
dvander@132	662	/* no tagname was given, check for one */
dvander@132	663	if (lex(&val,&name)!=tLABEL) {
dvander@132	664	lexpush();
dvander@132	665	return 0; /* untagged */
dvander@132	666	} /* if */
dvander@132	667	} /* if */
dvander@132	668
dvander@132	669	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@132	670	last=0;
dvander@132	671	ptr=tagname_tab.next;
dvander@132	672	while (ptr!=NULL) {
dvander@132	673	tag=(int)(ptr->value & TAGMASK);
dvander@132	674	if (strcmp(name,ptr->name)==0)
dvander@132	675	return tag; /* tagname is known, return its sequence number */
dvander@132	676	tag &= (int)~FIXEDTAG;
dvander@132	677	tag &= (int)~FUNCTAG;
dvander@132	678	if (tag>last)
dvander@132	679	last=tag;
dvander@132	680	ptr=ptr->next;
dvander@132	681	} /* while */
dvander@132	682
dvander@132	683	/* tagname currently unknown, add it */
dvander@132	684	tag=last+1; /* guaranteed not to exist already */
dvander@132	685	if (isupper(*name))
dvander@132	686	tag \|= (int)FIXEDTAG;
dvander@132	687	tag \|= (int)FUNCTAG;
dvander@132	688	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@132	689	return tag;
dvander@132	690	}
dvander@132	691
dvander@27	692	static void resetglobals(void)
dvander@27	693	{
dvander@27	694	/* reset the subset of global variables that is modified by the first pass */
dvander@27	695	curfunc=NULL; /* pointer to current function */
dvander@27	696	lastst=0; /* last executed statement type */
dvander@27	697	nestlevel=0; /* number of active (open) compound statements */
dvander@27	698	rettype=0; /* the type that a "return" expression should have */
dvander@27	699	litidx=0; /* index to literal table */
dvander@27	700	stgidx=0; /* index to the staging buffer */
dvander@27	701	sc_labnum=0; /* top value of (internal) labels */
dvander@27	702	staging=0; /* true if staging output */
dvander@27	703	declared=0; /* number of local cells declared */
dvander@27	704	glb_declared=0; /* number of global cells declared */
dvander@27	705	code_idx=0; /* number of bytes with generated code */
dvander@27	706	ntv_funcid=0; /* incremental number of native function */
dvander@27	707	curseg=0; /* 1 if currently parsing CODE, 2 if parsing DATA */
dvander@27	708	freading=FALSE; /* no input file ready yet */
dvander@27	709	fline=0; /* the line number in the current file */
dvander@27	710	fnumber=0; /* the file number in the file table (debugging) */
dvander@27	711	fcurrent=0; /* current file being processed (debugging) */
dvander@27	712	sc_intest=FALSE; /* true if inside a test */
dvander@27	713	sideeffect=0; /* true if an expression causes a side-effect */
dvander@27	714	stmtindent=0; /* current indent of the statement */
dvander@27	715	indent_nowarn=FALSE; /* do not skip warning "217 loose indentation" */
dvander@27	716	sc_allowtags=TRUE; /* allow/detect tagnames */
dvander@27	717	sc_status=statIDLE;
dvander@27	718	sc_allowproccall=FALSE;
dvander@27	719	pc_addlibtable=TRUE; /* by default, add a "library table" to the output file */
dvander@27	720	sc_alignnext=FALSE;
dvander@27	721	pc_docexpr=FALSE;
ds@52	722	pc_deprecate=NULL;
dvander@27	723	sc_curstates=0;
dvander@27	724	pc_memflags=0;
dvander@27	725	}
dvander@27	726
dvander@27	727	static void initglobals(void)
dvander@27	728	{
dvander@27	729	resetglobals();
dvander@27	730
dvander@27	731	sc_asmfile=FALSE; /* do not create .ASM file */
dvander@27	732	sc_listing=FALSE; /* do not create .LST file */
dvander@27	733	skipinput=0; /* number of lines to skip from the first input file */
dvander@27	734	sc_ctrlchar=CTRL_CHAR;/* the escape character */
dvander@27	735	litmax=sDEF_LITMAX; /* current size of the literal table */
dvander@27	736	errnum=0; /* number of errors */
dvander@27	737	warnnum=0; /* number of warnings */
dvander@27	738	optproccall=FALSE; /* sourcemod: do not support "procedure call" */
dvander@27	739	verbosity=1; /* verbosity level, no copyright banner */
dvander@27	740	sc_debug=sCHKBOUNDS\|sSYMBOLIC; /* sourcemod: full debug stuff */
dvander@27	741	pc_optimize=sOPTIMIZE_DEFAULT; /* sourcemod: full optimization */
dvander@151	742	sc_packstr=TRUE; /* strings are packed by default */
dvander@27	743	sc_compress=FALSE; /* always disable compact encoding! */
dvander@27	744	sc_needsemicolon=FALSE;/* semicolon required to terminate expressions? */
dvander@27	745	sc_dataalign=sizeof(cell);
dvander@27	746	pc_stksize=sDEF_AMXSTACK;/* default stack size */
dvander@27	747	pc_amxlimit=0; /* no limit on size of the abstract machine */
dvander@27	748	pc_amxram=0; /* no limit on data size of the abstract machine */
dvander@27	749	sc_tabsize=8; /* assume a TAB is 8 spaces */
dvander@27	750	sc_rationaltag=0; /* assume no support for rational numbers */
dvander@27	751	rational_digits=0; /* number of fractional digits */
dvander@27	752
dvander@27	753	outfname[0]='\0'; /* output file name */
dvander@27	754	errfname[0]='\0'; /* error file name */
dvander@27	755	inpf=NULL; /* file read from */
dvander@27	756	inpfname=NULL; /* pointer to name of the file currently read from */
dvander@27	757	outf=NULL; /* file written to */
dvander@27	758	litq=NULL; /* the literal queue */
dvander@27	759	glbtab.next=NULL; /* clear global variables/constants table */
dvander@27	760	loctab.next=NULL; /* " local " / " " */
dvander@27	761	tagname_tab.next=NULL;/* tagname table */
dvander@27	762	libname_tab.next=NULL;/* library table (#pragma library "..." syntax) */
dvander@27	763
dvander@27	764	pline[0]='\0'; /* the line read from the input file */
dvander@27	765	lptr=NULL; /* points to the current position in "pline" */
dvander@27	766	curlibrary=NULL; /* current library */
dvander@27	767	inpf_org=NULL; /* main source file */
dvander@27	768
dvander@27	769	wqptr=wq; /* initialize while queue pointer */
dvander@27	770
dvander@27	771	#if !defined SC_LIGHT
dvander@27	772	sc_documentation=NULL;
dvander@27	773	sc_makereport=FALSE; /* do not generate a cross-reference report */
dvander@27	774	#endif
dvander@27	775	}
dvander@27	776
dvander@27	777	static char get_extension(char filename)
dvander@27	778	{
dvander@27	779	char *ptr;
dvander@27	780
dvander@27	781	assert(filename!=NULL);
dvander@27	782	ptr=strrchr(filename,'.');
dvander@27	783	if (ptr!=NULL) {
dvander@27	784	/* ignore extension on a directory or at the start of the filename */
dvander@27	785	if (strchr(ptr,DIRSEP_CHAR)!=NULL \|\| ptr==filename \|\| *(ptr-1)==DIRSEP_CHAR)
dvander@27	786	ptr=NULL;
dvander@27	787	} /* if */
dvander@27	788	return ptr;
dvander@27	789	}
dvander@27	790
dvander@27	791	/* set_extension
dvander@27	792	* Set the default extension, or force an extension. To erase the
dvander@27	793	* extension of a filename, set "extension" to an empty string.
dvander@27	794	*/
dvander@27	795	SC_FUNC void set_extension(char filename,char extension,int force)
dvander@27	796	{
dvander@27	797	char *ptr;
dvander@27	798
dvander@27	799	assert(extension!=NULL && (extension=='\0' \|\| extension=='.'));
dvander@27	800	assert(filename!=NULL);
dvander@27	801	ptr=get_extension(filename);
dvander@27	802	if (force && ptr!=NULL)
dvander@27	803	ptr='\0'; / set zero terminator at the position of the period */
dvander@27	804	if (force \|\| ptr==NULL)
dvander@27	805	strcat(filename,extension);
dvander@27	806	}
dvander@27	807
dvander@27	808	static const char option_value(const char optptr)
dvander@27	809	{
dvander@27	810	return ((optptr+1)=='=' \|\| (optptr+1)==':') ? optptr+2 : optptr+1;
dvander@27	811	}
dvander@27	812
dvander@27	813	static int toggle_option(const char *optptr, int option)
dvander@27	814	{
dvander@27	815	switch (*option_value(optptr)) {
dvander@27	816	case '\0':
dvander@27	817	option=!option;
dvander@27	818	break;
dvander@27	819	case '-':
dvander@27	820	option=FALSE;
dvander@27	821	break;
dvander@27	822	case '+':
dvander@27	823	option=TRUE;
dvander@27	824	break;
dvander@27	825	default:
dvander@27	826	about();
dvander@27	827	} /* switch */
dvander@27	828	return option;
dvander@27	829	}
dvander@27	830
dvander@27	831	/* Parsing command line options is indirectly recursive: parseoptions()
dvander@27	832	* calls parserespf() to handle options in a a response file and
dvander@27	833	* parserespf() calls parseoptions() at its turn after having created
dvander@27	834	* an "option list" from the contents of the file.
dvander@27	835	*/
dvander@27	836	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	837	char rname, char codepage);
dvander@27	838
dvander@27	839	static void parseoptions(int argc,char *argv,char oname,char ename,char pname,
dvander@27	840	char rname, char codepage)
dvander@27	841	{
dvander@27	842	char str[_MAX_PATH],*name;
dvander@27	843	const char *ptr;
dvander@27	844	int arg,i,isoption;
dvander@27	845
dvander@27	846	for (arg=1; arg<argc; arg++) {
dvander@27	847	#if DIRSEP_CHAR=='/'
dvander@27	848	isoption= argv[arg][0]=='-';
dvander@27	849	#else
dvander@27	850	isoption= argv[arg][0]=='/' \|\| argv[arg][0]=='-';
dvander@27	851	#endif
dvander@27	852	if (isoption) {
dvander@27	853	ptr=&argv[arg][1];
dvander@27	854	switch (*ptr) {
dvander@27	855	case 'A':
dvander@27	856	i=atoi(option_value(ptr));
dvander@27	857	if ((i % sizeof(cell))==0)
dvander@27	858	sc_dataalign=i;
dvander@27	859	else
dvander@27	860	about();
dvander@27	861	break;
dvander@27	862	case 'a':
dvander@27	863	if (*(ptr+1)!='\0')
dvander@27	864	about();
dvander@27	865	sc_asmfile=TRUE; /* skip last pass of making binary file */
dvander@27	866	if (verbosity>1)
dvander@27	867	verbosity=1;
dvander@27	868	break;
dvander@27	869	#if 0 /* not allowed in SourceMod */
dvander@27	870	case 'C':
dvander@27	871	#if AMX_COMPACTMARGIN > 2
dvander@27	872	sc_compress=toggle_option(ptr,sc_compress);
dvander@27	873	#else
dvander@27	874	about();
dvander@27	875	#endif
dvander@27	876	break;
dvander@27	877	#endif
dvander@27	878	case 'c':
dvander@27	879	strlcpy(codepage,option_value(ptr),MAXCODEPAGE); /* set name of codepage */
dvander@27	880	break;
dvander@27	881	#if defined dos_setdrive
dvander@27	882	case 'D': /* set active directory */
dvander@27	883	ptr=option_value(ptr);
dvander@27	884	if (ptr[1]==':')
dvander@27	885	dos_setdrive(toupper(ptr)-'A'+1); / set active drive */
dvander@27	886	chdir(ptr);
dvander@27	887	break;
dvander@27	888	#endif
dvander@27	889	#if 0 /* not allowed to change for SourceMod */
dvander@27	890	case 'd':
dvander@27	891	switch (*option_value(ptr)) {
dvander@27	892	case '0':
dvander@27	893	sc_debug=0;
dvander@27	894	break;
dvander@27	895	case '1':
dvander@27	896	sc_debug=sCHKBOUNDS; /* assertions and bounds checking */
dvander@27	897	break;
dvander@27	898	case '2':
dvander@27	899	sc_debug=sCHKBOUNDS \| sSYMBOLIC; /* also symbolic info */
dvander@27	900	break;
dvander@27	901	case '3':
dvander@27	902	sc_debug=sCHKBOUNDS \| sSYMBOLIC;
dvander@27	903	pc_optimize=sOPTIMIZE_NONE;
dvander@27	904	/* also avoid peephole optimization */
dvander@27	905	break;
dvander@27	906	default:
dvander@27	907	about();
dvander@27	908	} /* switch */
dvander@27	909	break;
dvander@27	910	#endif
dvander@27	911	case 'e':
dvander@27	912	strlcpy(ename,option_value(ptr),_MAX_PATH); /* set name of error file */
dvander@27	913	break;
dvander@27	914	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	915	case 'H':
dvander@27	916	hwndFinish=(HWND)atoi(option_value(ptr));
dvander@27	917	if (!IsWindow(hwndFinish))
dvander@27	918	hwndFinish=(HWND)0;
dvander@27	919	break;
dvander@27	920	#endif
dvander@27	921	case 'i':
dvander@27	922	strlcpy(str,option_value(ptr),sizeof str); /* set name of include directory */
dvander@27	923	i=strlen(str);
dvander@27	924	if (i>0) {
dvander@27	925	if (str[i-1]!=DIRSEP_CHAR) {
dvander@27	926	str[i]=DIRSEP_CHAR;
dvander@27	927	str[i+1]='\0';
dvander@27	928	} /* if */
dvander@27	929	insert_path(str);
dvander@27	930	} /* if */
dvander@27	931	break;
dvander@27	932	case 'l':
dvander@27	933	if (*(ptr+1)!='\0')
dvander@27	934	about();
dvander@27	935	sc_listing=TRUE; /* skip second pass & code generation */
dvander@27	936	break;
dvander@27	937	case 'o':
dvander@27	938	strlcpy(oname,option_value(ptr),_MAX_PATH); /* set name of (binary) output file */
dvander@27	939	break;
dvander@27	940	case 'O':
dvander@27	941	pc_optimize=*option_value(ptr) - '0';
dvander@27	942	if (pc_optimize<sOPTIMIZE_NONE \|\| pc_optimize>=sOPTIMIZE_NUMBER \|\| pc_optimize==sOPTIMIZE_NOMACRO)
dvander@27	943	about();
dvander@27	944	break;
dvander@27	945	case 'p':
dvander@27	946	strlcpy(pname,option_value(ptr),_MAX_PATH); /* set name of implicit include file */
dvander@27	947	break;
dvander@27	948	#if !defined SC_LIGHT
dvander@27	949	case 'r':
dvander@27	950	strlcpy(rname,option_value(ptr),_MAX_PATH); /* set name of report file */
dvander@27	951	sc_makereport=TRUE;
dvander@27	952	if (strlen(rname)>0) {
dvander@27	953	set_extension(rname,".xml",FALSE);
dvander@27	954	} else if ((name=get_sourcefile(0))!=NULL) {
dvander@27	955	assert(strlen(rname)==0);
dvander@27	956	assert(strlen(name)<_MAX_PATH);
dvander@27	957	if ((ptr=strrchr(name,DIRSEP_CHAR))!=NULL)
dvander@27	958	ptr++; /* strip path */
dvander@27	959	else
dvander@27	960	ptr=name;
dvander@27	961	assert(strlen(ptr)<_MAX_PATH);
dvander@27	962	strcpy(rname,ptr);
dvander@27	963	set_extension(rname,".xml",TRUE);
dvander@27	964	} /* if */
dvander@27	965	break;
dvander@27	966	#endif
dvander@27	967	case 'S':
dvander@27	968	i=atoi(option_value(ptr));
dvander@27	969	if (i>32)
dvander@27	970	pc_stksize=(cell)i; /* stack size has minimum size */
dvander@27	971	else
dvander@27	972	about();
dvander@27	973	break;
dvander@27	974	case 's':
dvander@27	975	skipinput=atoi(option_value(ptr));
dvander@27	976	break;
dvander@27	977	case 't':
dvander@27	978	sc_tabsize=atoi(option_value(ptr));
dvander@27	979	break;
dvander@27	980	case 'v':
dvander@27	981	verbosity= isdigit(*option_value(ptr)) ? atoi(option_value(ptr)) : 2;
dvander@27	982	if (sc_asmfile && verbosity>1)
dvander@27	983	verbosity=1;
dvander@27	984	break;
dvander@27	985	case 'w':
dvander@27	986	i=(int)strtol(option_value(ptr),(char **)&ptr,10);
dvander@27	987	if (*ptr=='-')
dvander@27	988	pc_enablewarning(i,0);
dvander@27	989	else if (*ptr=='+')
dvander@27	990	pc_enablewarning(i,1);
dvander@27	991	else if (*ptr=='\0')
dvander@27	992	pc_enablewarning(i,2);
dvander@27	993	break;
dvander@27	994	case 'X':
dvander@27	995	if (*(ptr+1)=='D') {
dvander@27	996	i=atoi(option_value(ptr+1));
dvander@27	997	if (i>64)
dvander@27	998	pc_amxram=(cell)i; /* abstract machine data/stack has minimum size */
dvander@27	999	else
dvander@27	1000	about();
dvander@27	1001	} else {
dvander@27	1002	i=atoi(option_value(ptr));
dvander@27	1003	if (i>64)
dvander@27	1004	pc_amxlimit=(cell)i;/* abstract machine has minimum size */
dvander@27	1005	else
dvander@27	1006	about();
dvander@27	1007	} /* if */
dvander@27	1008	break;
dvander@27	1009	case '\\': /* use \ instead for escape characters */
dvander@27	1010	sc_ctrlchar='\\';
dvander@27	1011	break;
dvander@27	1012	case '^': /* use ^ instead for escape characters */
dvander@27	1013	sc_ctrlchar='^';
dvander@27	1014	break;
dvander@27	1015	case ';':
dvander@27	1016	sc_needsemicolon=toggle_option(ptr,sc_needsemicolon);
dvander@27	1017	break;
dvander@27	1018	#if 0 /* not allowed to change in SourceMod */
dvander@27	1019	case '(':
dvander@27	1020	optproccall=!toggle_option(ptr,!optproccall);
dvander@27	1021	break;
dvander@27	1022	#endif
dvander@27	1023	default: /* wrong option */
dvander@27	1024	about();
dvander@27	1025	} /* switch */
dvander@27	1026	} else if (argv[arg][0]=='@') {
dvander@27	1027	#if !defined SC_LIGHT
dvander@27	1028	parserespf(&argv[arg][1],oname,ename,pname,rname,codepage);
dvander@27	1029	#endif
dvander@27	1030	} else if ((ptr=strchr(argv[arg],'='))!=NULL) {
dvander@27	1031	i=(int)(ptr-argv[arg]);
dvander@27	1032	if (i>sNAMEMAX) {
dvander@27	1033	i=sNAMEMAX;
dvander@27	1034	error(200,argv[arg],sNAMEMAX); /* symbol too long, truncated to sNAMEMAX chars */
dvander@27	1035	} /* if */
dvander@27	1036	strlcpy(str,argv[arg],i+1); /* str holds symbol name */
dvander@27	1037	i=atoi(ptr+1);
dvander@27	1038	add_constant(str,i,sGLOBAL,0);
dvander@27	1039	} else {
dvander@395	1040	strlcpy(str,argv[arg],sizeof(str)-5); /* -5 because default extension is ".sp" */
dvander@395	1041	set_extension(str,".sp",FALSE);
dvander@27	1042	insert_sourcefile(str);
dvander@27	1043	/* The output name is the first input name with a different extension,
dvander@27	1044	* but it is stored in a different directory
dvander@27	1045	*/
dvander@27	1046	if (strlen(oname)==0) {
dvander@27	1047	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1048	ptr++; /* strip path */
dvander@27	1049	else
dvander@27	1050	ptr=str;
dvander@27	1051	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1052	strcpy(oname,ptr);
dvander@27	1053	} /* if */
dvander@27	1054	set_extension(oname,".asm",TRUE);
dvander@27	1055	#if !defined SC_LIGHT
dvander@27	1056	if (sc_makereport && strlen(rname)==0) {
dvander@27	1057	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1058	ptr++; /* strip path */
dvander@27	1059	else
dvander@27	1060	ptr=str;
dvander@27	1061	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1062	strcpy(rname,ptr);
dvander@27	1063	set_extension(rname,".xml",TRUE);
dvander@27	1064	} /* if */
dvander@27	1065	#endif
dvander@27	1066	} /* if */
dvander@27	1067	} /* for */
dvander@27	1068	}
dvander@27	1069
dvander@27	1070	#if !defined SC_LIGHT
dvander@27	1071	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	1072	char rname,char codepage)
dvander@27	1073	{
dvander@27	1074	#define MAX_OPTIONS 100
dvander@27	1075	FILE *fp;
dvander@27	1076	char string, ptr, **argv;
dvander@27	1077	int argc;
dvander@27	1078	long size;
dvander@27	1079
dvander@27	1080	if ((fp=fopen(filename,"r"))==NULL)
ds@841	1081	error(120,filename); /* error reading input file */
dvander@27	1082	/* load the complete file into memory */
dvander@27	1083	fseek(fp,0L,SEEK_END);
dvander@27	1084	size=ftell(fp);
dvander@27	1085	fseek(fp,0L,SEEK_SET);
dvander@27	1086	assert(size<INT_MAX);
dvander@27	1087	if ((string=(char *)malloc((int)size+1))==NULL)
ds@841	1088	error(123); /* insufficient memory */
dvander@27	1089	/* fill with zeros; in MS-DOS, fread() may collapse CR/LF pairs to
dvander@27	1090	* a single '\n', so the string size may be smaller than the file
dvander@27	1091	* size. */
dvander@27	1092	memset(string,0,(int)size+1);
dvander@27	1093	fread(string,1,(int)size,fp);
dvander@27	1094	fclose(fp);
dvander@27	1095	/* allocate table for option pointers */
dvander@27	1096	if ((argv=(char *)malloc(MAX_OPTIONSsizeof(char*)))==NULL)
ds@841	1097	error(123); /* insufficient memory */
dvander@27	1098	/* fill the options table */
dvander@27	1099	ptr=strtok(string," \t\r\n");
dvander@27	1100	for (argc=1; argc<MAX_OPTIONS && ptr!=NULL; argc++) {
dvander@27	1101	/* note: the routine skips argv[0], for compatibility with main() */
dvander@27	1102	argv[argc]=ptr;
dvander@27	1103	ptr=strtok(NULL," \t\r\n");
dvander@27	1104	} /* for */
dvander@27	1105	if (ptr!=NULL)
ds@841	1106	error(122,"option table"); /* table overflow */
dvander@27	1107	/* parse the option table */
dvander@27	1108	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1109	/* free allocated memory */
dvander@27	1110	free(argv);
dvander@27	1111	free(string);
dvander@27	1112	}
dvander@27	1113	#endif
dvander@27	1114
dvander@27	1115	static void setopt(int argc,char *argv,char oname,char ename,char pname,
dvander@27	1116	char rname,char codepage)
dvander@27	1117	{
dvander@27	1118	delete_sourcefiletable(); /* make sure it is empty */
dvander@27	1119	*oname='\0';
dvander@27	1120	*ename='\0';
dvander@27	1121	*pname='\0';
dvander@27	1122	*rname='\0';
dvander@27	1123	*codepage='\0';
dvander@27	1124	strcpy(pname,sDEF_PREFIX);
dvander@27	1125
dvander@27	1126	#if 0 /* needed to test with BoundsChecker for DOS (it does not pass
dvander@27	1127	* through arguments) */
dvander@27	1128	insert_sourcefile("test.p");
dvander@27	1129	strcpy(oname,"test.asm");
dvander@27	1130	#endif
dvander@27	1131
dvander@27	1132	#if !defined SC_LIGHT
dvander@27	1133	/* first parse a "config" file with default options */
dvander@27	1134	if (argv[0]!=NULL) {
dvander@27	1135	char cfgfile[_MAX_PATH];
dvander@27	1136	char *ext;
dvander@27	1137	strcpy(cfgfile,argv[0]);
dvander@27	1138	if ((ext=strrchr(cfgfile,DIRSEP_CHAR))!=NULL) {
dvander@27	1139	(ext+1)='\0'; / strip the program filename */
dvander@27	1140	strcat(cfgfile,"pawn.cfg");
dvander@27	1141	} else {
dvander@27	1142	strcpy(cfgfile,"pawn.cfg");
dvander@27	1143	} /* if */
dvander@27	1144	if (access(cfgfile,4)==0)
dvander@27	1145	parserespf(cfgfile,oname,ename,pname,rname,codepage);
dvander@27	1146	} /* if */
dvander@27	1147	#endif
dvander@27	1148	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1149	if (get_sourcefile(0)==NULL)
dvander@27	1150	about();
dvander@27	1151	}
dvander@27	1152
dvander@27	1153	#if defined __BORLANDC__ \|\| defined __WATCOMC__
dvander@27	1154	#pragma argsused
dvander@27	1155	#endif
dvander@27	1156	static void setconfig(char *root)
dvander@27	1157	{
dvander@27	1158	#if defined macintosh
dvander@27	1159	insert_path(":include:");
dvander@27	1160	#else
dvander@27	1161	char path[_MAX_PATH];
dvander@27	1162	char ptr,base;
dvander@27	1163	int len;
dvander@27	1164
dvander@27	1165	/* add the default "include" directory */
dvander@27	1166	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	1167	GetModuleFileNameA(NULL,path,_MAX_PATH);
ds@1312	1168	#elif defined LINUX \|\| defined __FreeBSD__ \|\| defined __OpenBSD__
ds@1312	1169	/* see www.autopackage.org for the BinReloc module */
ds@1312	1170	br_init_lib(NULL);
ds@1312	1171	ptr=br_find_exe("spcomp");
ds@1312	1172	strlcpy(path,ptr,sizeof path);
ds@1312	1173	free(ptr);
dvander@27	1174	#else
dvander@27	1175	if (root!=NULL)
dvander@27	1176	strlcpy(path,root,sizeof path); /* path + filename (hopefully) */
dvander@27	1177	#endif
dvander@27	1178	#if defined __MSDOS__
dvander@27	1179	/* strip the options (appended to the path + filename) */
dvander@27	1180	if ((ptr=strpbrk(path," \t/"))!=NULL)
dvander@27	1181	*ptr='\0';
dvander@27	1182	#endif
dvander@27	1183	/* terminate just behind last \ or : */
dvander@27	1184	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL \|\| (ptr=strchr(path,':'))!=NULL) {
dvander@27	1185	/* If there is no "\" or ":", the string probably does not contain the
dvander@27	1186	* path; so we just don't add it to the list in that case
dvander@27	1187	*/
dvander@27	1188	*(ptr+1)='\0';
dvander@27	1189	base=ptr;
dvander@27	1190	strcat(path,"include");
dvander@27	1191	len=strlen(path);
dvander@27	1192	path[len]=DIRSEP_CHAR;
dvander@27	1193	path[len+1]='\0';
dvander@27	1194	/* see if it exists */
dvander@27	1195	if (access(path,0)!=0 && *base==DIRSEP_CHAR) {
dvander@27	1196	/* There is no "include" directory below the directory where the compiler
dvander@27	1197	* is found. This typically means that the compiler is in a "bin" sub-directory
dvander@27	1198	* and the "include" is below the parent. So find the parent...
dvander@27	1199	*/
dvander@27	1200	*base='\0';
dvander@27	1201	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL) {
dvander@27	1202	*(ptr+1)='\0';
dvander@27	1203	strcat(path,"include");
dvander@27	1204	len=strlen(path);
dvander@27	1205	path[len]=DIRSEP_CHAR;
dvander@27	1206	path[len+1]='\0';
dvander@27	1207	} else {
dvander@27	1208	*base=DIRSEP_CHAR;
dvander@27	1209	} /* if */
dvander@27	1210	} /* if */
dvander@27	1211	insert_path(path);
dvander@27	1212	/* same for the codepage root */
dvander@27	1213	#if !defined NO_CODEPAGE
dvander@27	1214	*ptr='\0';
dvander@27	1215	if (!cp_path(path,"codepage"))
ds@841	1216	error(129,path); /* codepage path */
dvander@27	1217	#endif
dvander@27	1218	/* also copy the root path (for the XML documentation) */
dvander@27	1219	#if !defined SC_LIGHT
dvander@27	1220	*ptr='\0';
dvander@27	1221	strcpy(sc_rootpath,path);
dvander@27	1222	#endif
dvander@27	1223	} /* if */
dvander@27	1224	#endif /* macintosh */
dvander@27	1225	}
dvander@27	1226
dvander@27	1227	static void setcaption(void)
dvander@27	1228	{
dvander@799	1229	pc_printf("SourcePawn Compiler " SVN_FULL_VERSION "\n");
ds@1947	1230	pc_printf("Copyright (c) 1997-2006, ITB CompuPhase, (C)2004-2008 AlliedModders, LLC\n\n");
dvander@27	1231	}
dvander@27	1232
dvander@27	1233	static void about(void)
dvander@27	1234	{
dvander@27	1235	if (strlen(errfname)==0) {
dvander@27	1236	setcaption();
dvander@1654	1237	pc_printf("Usage: spcomp <filename> [filename...] [options]\n\n");
dvander@27	1238	pc_printf("Options:\n");
dvander@27	1239	pc_printf(" -A<num> alignment in bytes of the data segment and the stack\n");
dvander@27	1240	pc_printf(" -a output assembler code\n");
dvander@27	1241	#if 0 /* not toggleable in SourceMod */
dvander@27	1242	pc_printf(" -C[+/-] compact encoding for output file (default=%c)\n", sc_compress ? '+' : '-');
dvander@27	1243	#endif
dvander@27	1244	pc_printf(" -c<name> codepage name or number; e.g. 1252 for Windows Latin-1\n");
dvander@27	1245	#if defined dos_setdrive
dvander@27	1246	pc_printf(" -Dpath active directory path\n");
dvander@27	1247	#endif
dvander@27	1248	#if 0 /* not used for SourceMod */
dvander@27	1249	pc_printf(" -d<num> debugging level (default=-d%d)\n",sc_debug);
dvander@27	1250	pc_printf(" 0 no symbolic information, no run-time checks\n");
dvander@27	1251	pc_printf(" 1 run-time checks, no symbolic information\n");
dvander@27	1252	pc_printf(" 2 full debug information and dynamic checking\n");
dvander@27	1253	pc_printf(" 3 same as -d2, but implies -O0\n");
dvander@27	1254	#endif
dvander@27	1255	pc_printf(" -e<name> set name of error file (quiet compile)\n");
dvander@27	1256	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	1257	pc_printf(" -H<hwnd> window handle to send a notification message on finish\n");
dvander@27	1258	#endif
dvander@27	1259	pc_printf(" -i<name> path for include files\n");
dvander@27	1260	pc_printf(" -l create list file (preprocess only)\n");
dvander@27	1261	pc_printf(" -o<name> set base name of (P-code) output file\n");
dvander@27	1262	pc_printf(" -O<num> optimization level (default=-O%d)\n",pc_optimize);
dvander@27	1263	pc_printf(" 0 no optimization\n");
dvander@27	1264	#if 0 /* not used for SourceMod */
dvander@27	1265	pc_printf(" 1 JIT-compatible optimizations only\n");
dvander@27	1266	#endif
dvander@27	1267	pc_printf(" 2 full optimizations\n");
dvander@27	1268	pc_printf(" -p<name> set name of \"prefix\" file\n");
dvander@27	1269	#if !defined SC_LIGHT
dvander@27	1270	pc_printf(" -r[name] write cross reference report to console or to specified file\n");
dvander@27	1271	#endif
dvander@27	1272	pc_printf(" -S<num> stack/heap size in cells (default=%d)\n",(int)pc_stksize);
dvander@27	1273	pc_printf(" -s<num> skip lines from the input file\n");
dvander@27	1274	pc_printf(" -t<num> TAB indent size (in character positions, default=%d)\n",sc_tabsize);
dvander@27	1275	pc_printf(" -v<num> verbosity level; 0=quiet, 1=normal, 2=verbose (default=%d)\n",verbosity);
dvander@27	1276	pc_printf(" -w<num> disable a specific warning by its number\n");
dvander@27	1277	pc_printf(" -X<num> abstract machine size limit in bytes\n");
dvander@27	1278	pc_printf(" -XD<num> abstract machine data/stack size limit in bytes\n");
dvander@27	1279	pc_printf(" -\\ use '\\' for escape characters\n");
dvander@27	1280	pc_printf(" -^ use '^' for escape characters\n");
dvander@27	1281	pc_printf(" -;[+/-] require a semicolon to end each statement (default=%c)\n", sc_needsemicolon ? '+' : '-');
dvander@27	1282	#if 0 /* not allowed in SourceMod */
dvander@27	1283	pc_printf(" -([+/-] require parantheses for function invocation (default=%c)\n", optproccall ? '-' : '+');
dvander@27	1284	#endif
dvander@27	1285	pc_printf(" sym=val define constant \"sym\" with value \"val\"\n");
dvander@27	1286	pc_printf(" sym= define constant \"sym\" with value 0\n");
dvander@27	1287	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows \|\| defined __MSDOS__
dvander@27	1288	pc_printf("\nOptions may start with a dash or a slash; the options \"-d0\" and \"/d0\" are\n");
dvander@27	1289	pc_printf("equivalent.\n");
dvander@27	1290	#endif
dvander@27	1291	pc_printf("\nOptions with a value may optionally separate the value from the option letter\n");
dvander@27	1292	pc_printf("with a colon (\":\") or an equal sign (\"=\"). That is, the options \"-d0\", \"-d=0\"\n");
dvander@27	1293	pc_printf("and \"-d:0\" are all equivalent.\n");
dvander@27	1294	} /* if */
dvander@27	1295	norun = 1;
dvander@27	1296	longjmp(errbuf,3); /* user abort */
dvander@27	1297	}
dvander@27	1298
dvander@27	1299	static void setconstants(void)
dvander@27	1300	{
dvander@27	1301	int debug;
dvander@27	1302
dvander@27	1303	assert(sc_status==statIDLE);
dvander@27	1304	append_constval(&tagname_tab,"_",0,0);/* "untagged" */
dvander@27	1305	append_constval(&tagname_tab,"bool",1,0);
ds@632	1306
ds@632	1307	pc_anytag = pc_addtag("any");
dvander@132	1308	pc_functag = pc_addfunctag("Function");
dvander@151	1309	pc_tag_string = pc_addtag("String");
dvander@27	1310
dvander@27	1311	add_constant("true",1,sGLOBAL,1); /* boolean flags */
dvander@27	1312	add_constant("false",0,sGLOBAL,1);
dvander@27	1313	add_constant("EOS",0,sGLOBAL,0); /* End Of String, or '\0' */
dvander@27	1314	#if PAWN_CELL_SIZE==16
dvander@27	1315	add_constant("cellbits",16,sGLOBAL,0);
dvander@27	1316	#if defined _I16_MAX
dvander@27	1317	add_constant("cellmax",_I16_MAX,sGLOBAL,0);
dvander@27	1318	add_constant("cellmin",_I16_MIN,sGLOBAL,0);
dvander@27	1319	#else
dvander@27	1320	add_constant("cellmax",SHRT_MAX,sGLOBAL,0);
dvander@27	1321	add_constant("cellmin",SHRT_MIN,sGLOBAL,0);
dvander@27	1322	#endif
dvander@27	1323	#elif PAWN_CELL_SIZE==32
dvander@27	1324	add_constant("cellbits",32,sGLOBAL,0);
dvander@27	1325	#if defined _I32_MAX
dvander@27	1326	add_constant("cellmax",_I32_MAX,sGLOBAL,0);
dvander@27	1327	add_constant("cellmin",_I32_MIN,sGLOBAL,0);
dvander@27	1328	#else
dvander@27	1329	add_constant("cellmax",LONG_MAX,sGLOBAL,0);
dvander@27	1330	add_constant("cellmin",LONG_MIN,sGLOBAL,0);
dvander@27	1331	#endif
dvander@27	1332	#elif PAWN_CELL_SIZE==64
dvander@27	1333	#if !defined _I64_MIN
dvander@27	1334	#define _I64_MIN (-9223372036854775807ULL - 1)
dvander@27	1335	#define _I64_MAX 9223372036854775807ULL
dvander@27	1336	#endif
dvander@27	1337	add_constant("cellbits",64,sGLOBAL,0);
dvander@27	1338	add_constant("cellmax",_I64_MAX,sGLOBAL,0);
dvander@27	1339	add_constant("cellmin",_I64_MIN,sGLOBAL,0);
dvander@27	1340	#else
dvander@27	1341	#error Unsupported cell size
dvander@27	1342	#endif
dvander@27	1343	add_constant("charbits",sCHARBITS,sGLOBAL,0);
dvander@27	1344	add_constant("charmin",0,sGLOBAL,0);
dvander@27	1345	add_constant("charmax",~(-1 << sCHARBITS) - 1,sGLOBAL,0);
dvander@27	1346	add_constant("ucharmax",(1 << (sizeof(cell)-1)*8)-1,sGLOBAL,0);
dvander@27	1347
dvander@27	1348	add_constant("__Pawn",VERSION_INT,sGLOBAL,0);
dvander@27	1349
dvander@27	1350	debug=0;
dvander@27	1351	if ((sc_debug & (sCHKBOUNDS \| sSYMBOLIC))==(sCHKBOUNDS \| sSYMBOLIC))
dvander@27	1352	debug=2;
dvander@27	1353	else if ((sc_debug & sCHKBOUNDS)==sCHKBOUNDS)
dvander@27	1354	debug=1;
dvander@27	1355	add_constant("debug",debug,sGLOBAL,0);
dvander@27	1356
dvander@27	1357	append_constval(&sc_automaton_tab,"",0,0); /* anonymous automaton */
dvander@27	1358	}
dvander@27	1359
dvander@27	1360	static int getclassspec(int initialtok,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1361	{
dvander@27	1362	int tok,err;
dvander@27	1363	cell val;
dvander@27	1364	char *str;
dvander@27	1365
dvander@27	1366	assert(fconst!=NULL);
dvander@27	1367	assert(fstock!=NULL);
dvander@27	1368	assert(fstatic!=NULL);
dvander@27	1369	assert(fpublic!=NULL);
dvander@27	1370	*fconst=FALSE;
dvander@27	1371	*fstock=FALSE;
dvander@27	1372	*fstatic=FALSE;
dvander@27	1373	*fpublic=FALSE;
dvander@27	1374	switch (initialtok) {
dvander@27	1375	case tCONST:
dvander@27	1376	*fconst=TRUE;
dvander@27	1377	break;
dvander@27	1378	case tSTOCK:
dvander@27	1379	*fstock=TRUE;
dvander@27	1380	break;
dvander@27	1381	case tSTATIC:
dvander@27	1382	*fstatic=TRUE;
dvander@27	1383	break;
dvander@27	1384	case tPUBLIC:
dvander@27	1385	*fpublic=TRUE;
dvander@27	1386	break;
dvander@27	1387	} /* switch */
dvander@27	1388
dvander@27	1389	err=0;
dvander@27	1390	do {
dvander@27	1391	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1392	switch (tok) {
dvander@27	1393	case tCONST:
dvander@27	1394	if (*fconst)
dvander@27	1395	err=42; /* invalid combination of class specifiers */
dvander@27	1396	*fconst=TRUE;
dvander@27	1397	break;
dvander@27	1398	case tSTOCK:
dvander@27	1399	if (*fstock)
dvander@27	1400	err=42; /* invalid combination of class specifiers */
dvander@27	1401	*fstock=TRUE;
dvander@27	1402	break;
dvander@27	1403	case tSTATIC:
dvander@27	1404	if (*fstatic)
dvander@27	1405	err=42; /* invalid combination of class specifiers */
dvander@27	1406	*fstatic=TRUE;
dvander@27	1407	break;
dvander@27	1408	case tPUBLIC:
dvander@27	1409	if (*fpublic)
dvander@27	1410	err=42; /* invalid combination of class specifiers */
dvander@27	1411	*fpublic=TRUE;
dvander@27	1412	break;
dvander@27	1413	default:
dvander@27	1414	lexpush();
dvander@27	1415	tok=0; /* force break out of loop */
dvander@27	1416	} /* switch */
dvander@27	1417	} while (tok && err==0);
dvander@27	1418
dvander@27	1419	/* extra checks */
dvander@27	1420	if (fstatic && fpublic) {
dvander@27	1421	err=42; /* invalid combination of class specifiers */
dvander@27	1422	fstatic=fpublic=FALSE;
dvander@27	1423	} /* if */
dvander@27	1424
dvander@27	1425	if (err)
dvander@27	1426	error(err);
dvander@27	1427	return err==0;
dvander@27	1428	}
dvander@27	1429
dvander@27	1430	/* parse - process all input text
dvander@27	1431	*
dvander@27	1432	* At this level, only static declarations and function definitions are legal.
dvander@27	1433	*/
dvander@27	1434	static void parse(void)
dvander@27	1435	{
dvander@27	1436	int tok,fconst,fstock,fstatic,fpublic;
dvander@27	1437	cell val;
dvander@27	1438	char *str;
dvander@27	1439
dvander@27	1440	while (freading){
dvander@27	1441	/* first try whether a declaration possibly is native or public */
dvander@27	1442	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1443	switch (tok) {
dvander@27	1444	case 0:
dvander@27	1445	/* ignore zero's */
dvander@27	1446	break;
dvander@27	1447	case tNEW:
dvander@27	1448	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst))
dvander@27	1449	declglb(NULL,0,fpublic,fstatic,fstock,fconst);
dvander@27	1450	break;
dvander@27	1451	case tSTATIC:
dvander@27	1452	/* This can be a static function or a static global variable; we know
dvander@27	1453	* which of the two as soon as we have parsed up to the point where an
dvander@27	1454	* opening paranthesis of a function would be expected. To back out after
dvander@27	1455	* deciding it was a declaration of a static variable after all, we have
dvander@27	1456	* to store the symbol name and tag.
dvander@27	1457	*/
dvander@27	1458	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1459	assert(!fpublic);
dvander@27	1460	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1461	} /* if */
dvander@27	1462	break;
dvander@27	1463	case tCONST:
dvander@27	1464	decl_const(sGLOBAL);
dvander@27	1465	break;
dvander@27	1466	case tENUM:
dvander@27	1467	decl_enum(sGLOBAL);
dvander@27	1468	break;
dvander@132	1469	case tFUNCENUM:
dvander@338	1470	dofuncenum(TRUE);
dvander@338	1471	break;
dvander@338	1472	case tFUNCTAG:
dvander@338	1473	dofuncenum(FALSE);
dvander@132	1474	break;
dvander@167	1475	case tSTRUCT:
dvander@167	1476	declstruct();
dvander@167	1477	break;
dvander@27	1478	case tPUBLIC:
dvander@27	1479	/* This can be a public function or a public variable; see the comment
dvander@27	1480	* above (for static functions/variables) for details.
dvander@27	1481	*/
dvander@27	1482	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1483	assert(!fstatic);
dvander@27	1484	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1485	} /* if */
dvander@27	1486	break;
dvander@27	1487	case tSTOCK:
dvander@27	1488	/* This can be a stock function or a stock global) variable; see the
dvander@27	1489	* comment above (for static functions/variables) for details.
dvander@27	1490	*/
dvander@27	1491	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1492	assert(fstock);
dvander@27	1493	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1494	} /* if */
dvander@27	1495	break;
dvander@27	1496	case tLABEL:
dvander@27	1497	case tSYMBOL:
dvander@27	1498	case tOPERATOR:
dvander@27	1499	lexpush();
dvander@27	1500	if (!newfunc(NULL,-1,FALSE,FALSE,FALSE)) {
dvander@27	1501	error(10); /* illegal function or declaration */
dvander@27	1502	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1503	litidx=0; /* drop the literal queue too */
dvander@27	1504	} /* if */
dvander@27	1505	break;
dvander@27	1506	case tNATIVE:
dvander@27	1507	funcstub(TRUE); /* create a dummy function */
dvander@27	1508	break;
dvander@27	1509	case tFORWARD:
dvander@27	1510	funcstub(FALSE);
dvander@27	1511	break;
dvander@27	1512	case '}':
dvander@27	1513	error(54); /* unmatched closing brace */
dvander@27	1514	break;
dvander@27	1515	case '{':
dvander@27	1516	error(55); /* start of function body without function header */
dvander@27	1517	break;
dvander@27	1518	default:
dvander@27	1519	if (freading) {
dvander@27	1520	error(10); /* illegal function or declaration */
dvander@27	1521	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1522	litidx=0; /* drop any literal arrays (strings) */
dvander@27	1523	} /* if */
dvander@27	1524	} /* switch */
dvander@27	1525	} /* while */
dvander@27	1526	}
dvander@27	1527
dvander@27	1528	/* dumplits
dvander@27	1529	*
dvander@27	1530	* Dump the literal pool (strings etc.)
dvander@27	1531	*
dvander@27	1532	* Global references: litidx (referred to only)
dvander@27	1533	*/
dvander@27	1534	static void dumplits(void)
dvander@27	1535	{
dvander@27	1536	int j,k;
dvander@27	1537
faluco@62	1538	if (sc_status==statSKIP)
faluco@62	1539	return;
faluco@62	1540
dvander@27	1541	k=0;
dvander@27	1542	while (k<litidx){
dvander@27	1543	/* should be in the data segment */
dvander@27	1544	assert(curseg==2);
dvander@27	1545	defstorage();
dvander@27	1546	j=16; /* 16 values per line */
dvander@27	1547	while (j && k<litidx){
dvander@27	1548	outval(litq[k], FALSE);
dvander@27	1549	stgwrite(" ");
dvander@27	1550	k++;
dvander@27	1551	j--;
dvander@27	1552	if (j==0 \|\| k>=litidx)
dvander@27	1553	stgwrite("\n"); /* force a newline after 10 dumps */
dvander@27	1554	/* Note: stgwrite() buffers a line until it is complete. It recognizes
dvander@27	1555	* the end of line as a sequence of "\n\0", so something like "\n\t"
dvander@27	1556	* so should not be passed to stgwrite().
dvander@27	1557	*/
dvander@27	1558	} /* while */
dvander@27	1559	} /* while */
dvander@27	1560	}
dvander@27	1561
dvander@27	1562	/* dumpzero
dvander@27	1563	*
dvander@27	1564	* Dump zero's for default initial values
dvander@27	1565	*/
dvander@27	1566	static void dumpzero(int count)
dvander@27	1567	{
dvander@27	1568	int i;
dvander@27	1569
faluco@62	1570	if (sc_status==statSKIP \|\| count<=0)
dvander@27	1571	return;
dvander@27	1572	assert(curseg==2);
dvander@27	1573	defstorage();
dvander@27	1574	i=0;
dvander@27	1575	while (count-- > 0) {
dvander@27	1576	outval(0, FALSE);
dvander@27	1577	i=(i+1) % 16;
dvander@27	1578	stgwrite((i==0 \|\| count==0) ? "\n" : " ");
dvander@27	1579	if (i==0 && count>0)
dvander@27	1580	defstorage();
dvander@27	1581	} /* while */
dvander@27	1582	}
dvander@27	1583
dvander@27	1584	static void aligndata(int numbytes)
dvander@27	1585	{
dvander@27	1586	assert(numbytes % sizeof(cell) == 0); /* alignment must be a multiple of
dvander@27	1587	* the cell size */
dvander@27	1588	assert(numbytes!=0);
dvander@27	1589
dvander@27	1590	if ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0) {
dvander@27	1591	while ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0)
dvander@27	1592	litadd(0);
dvander@27	1593	} /* if */
dvander@27	1594
dvander@27	1595	}
dvander@27	1596
dvander@27	1597	#if !defined SC_LIGHT
dvander@27	1598	/* sc_attachdocumentation()
dvander@27	1599	* appends documentation comments to the passed-in symbol, or to a global
dvander@27	1600	* string if "sym" is NULL.
dvander@27	1601	*/
dvander@27	1602	void sc_attachdocumentation(symbol *sym)
dvander@27	1603	{
dvander@27	1604	int line;
dvander@27	1605	size_t length;
dvander@27	1606	char str,doc;
dvander@27	1607
dvander@27	1608	if (!sc_makereport \|\| sc_status!=statFIRST \|\| sc_parsenum>0) {
dvander@27	1609	/* just clear the entire table */
dvander@27	1610	delete_docstringtable();
dvander@27	1611	return;
dvander@27	1612	} /* if */
dvander@27	1613	/* in the case of state functions, multiple documentation sections may
dvander@27	1614	* appear; we should concatenate these
dvander@27	1615	* (with forward declarations, this is also already the case, so the assertion
dvander@27	1616	* below is invalid)
dvander@27	1617	*/
dvander@27	1618	// assert(sym==NULL \|\| sym->documentation==NULL \|\| sym->states!=NULL);
dvander@27	1619
dvander@27	1620	/* first check the size */
dvander@27	1621	length=0;
dvander@27	1622	for (line=0; (str=get_docstring(line))!=NULL && *str!=sDOCSEP; line++) {
dvander@27	1623	if (length>0)
dvander@27	1624	length++; /* count 1 extra for a separating space */
dvander@27	1625	length+=strlen(str);
dvander@27	1626	} /* for */
dvander@27	1627	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1628	length += strlen(sc_documentation) + 1 + 4; /* plus 4 for "<p/>" */
dvander@27	1629	assert(length>strlen(sc_documentation));
dvander@27	1630	} /* if */
dvander@27	1631
dvander@27	1632	if (length>0) {
dvander@27	1633	/* allocate memory for the documentation */
dvander@27	1634	if (sym!=NULL && sym->documentation!=NULL)
dvander@27	1635	length+=strlen(sym->documentation) + 1 + 4;/* plus 4 for "<p/>" */
dvander@27	1636	doc=(char)malloc((length+1)sizeof(char));
dvander@27	1637	if (doc!=NULL) {
dvander@27	1638	/* initialize string or concatenate */
dvander@27	1639	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1640	strcpy(doc,sc_documentation);
dvander@27	1641	strcat(doc,"<p/>");
dvander@27	1642	} else if (sym!=NULL && sym->documentation!=NULL) {
dvander@27	1643	strcpy(doc,sym->documentation);
dvander@27	1644	strcat(doc,"<p/>");
dvander@27	1645	free(sym->documentation);
dvander@27	1646	sym->documentation=NULL;
dvander@27	1647	} else {
dvander@27	1648	doc[0]='\0';
dvander@27	1649	} /* if */
dvander@27	1650	/* collect all documentation */
dvander@27	1651	while ((str=get_docstring(0))!=NULL && *str!=sDOCSEP) {
dvander@27	1652	if (doc[0]!='\0')
dvander@27	1653	strcat(doc," ");
dvander@27	1654	strcat(doc,str);
dvander@27	1655	delete_docstring(0);
dvander@27	1656	} /* while */
dvander@27	1657	if (str!=NULL) {
dvander@27	1658	/* also delete the separator */
dvander@27	1659	assert(*str==sDOCSEP);
dvander@27	1660	delete_docstring(0);
dvander@27	1661	} /* if */
dvander@27	1662	if (sym!=NULL) {
dvander@27	1663	assert(sym->documentation==NULL);
dvander@27	1664	sym->documentation=doc;
dvander@27	1665	} else {
dvander@27	1666	if (sc_documentation!=NULL)
dvander@27	1667	free(sc_documentation);
dvander@27	1668	sc_documentation=doc;
dvander@27	1669	} /* if */
dvander@27	1670	} /* if */
dvander@27	1671	} else {
dvander@27	1672	/* delete an empty separator, if present */
dvander@27	1673	if ((str=get_docstring(0))!=NULL && *str==sDOCSEP)
dvander@27	1674	delete_docstring(0);
dvander@27	1675	} /* if */
dvander@27	1676	}
dvander@27	1677
dvander@27	1678	static void insert_docstring_separator(void)
dvander@27	1679	{
dvander@27	1680	char sep[2]={sDOCSEP,'\0'};
dvander@27	1681	insert_docstring(sep);
dvander@27	1682	}
dvander@27	1683	#else
dvander@27	1684	#define sc_attachdocumentation(s) (void)(s)
dvander@27	1685	#define insert_docstring_separator()
dvander@27	1686	#endif
dvander@27	1687
dvander@27	1688	static void declfuncvar(int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1689	{
dvander@27	1690	char name[sNAMEMAX+11];
dvander@167	1691	int tok,tag=0;
dvander@27	1692	char *str;
dvander@27	1693	cell val;
dvander@27	1694	int invalidfunc;
dvander@167	1695	pstruct_t *pstruct = NULL;
dvander@167	1696
dvander@167	1697	tok=lex(&val,&str);
dvander@167	1698	if (tok == tLABEL) {
dvander@167	1699	pstruct=pstructs_find(str);
dvander@167	1700	tag=pc_addtag(str);
dvander@167	1701	} else {
dvander@167	1702	lexpush();
dvander@167	1703	}
dvander@27	1704	tok=lex(&val,&str);
dvander@27	1705	/* if we arrived here, this may not be a declaration of a native function
dvander@27	1706	* or variable
dvander@27	1707	*/
dvander@27	1708	if (tok==tNATIVE) {
dvander@27	1709	error(42); /* invalid combination of class specifiers */
dvander@27	1710	return;
dvander@27	1711	} /* if */
dvander@27	1712
dvander@27	1713	if (tok!=tSYMBOL && tok!=tOPERATOR) {
dvander@27	1714	lexpush();
dvander@27	1715	needtoken(tSYMBOL);
dvander@27	1716	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1717	litidx=0; /* drop the literal queue too */
dvander@27	1718	return;
dvander@27	1719	} /* if */
dvander@27	1720	if (tok==tOPERATOR) {
dvander@27	1721	lexpush(); /* push "operator" keyword back (for later analysis) */
dvander@27	1722	if (!newfunc(NULL,tag,fpublic,fstatic,fstock)) {
dvander@27	1723	error(10); /* illegal function or declaration */
dvander@27	1724	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1725	litidx=0; /* drop the literal queue too */
dvander@27	1726	} /* if */
dvander@27	1727	} else {
dvander@27	1728	/* so tok is tSYMBOL */
dvander@27	1729	assert(strlen(str)<=sNAMEMAX);
dvander@27	1730	strcpy(name,str);
dvander@27	1731	/* only variables can be "const" or both "public" and "stock" */
dvander@27	1732	invalidfunc= fconst \|\| (fpublic && fstock);
dvander@27	1733	if (invalidfunc \|\| !newfunc(name,tag,fpublic,fstatic,fstock)) {
dvander@27	1734	/* if not a function, try a global variable */
dvander@167	1735	if (pstruct) {
dvander@167	1736	declstructvar(name,fpublic,pstruct);
dvander@167	1737	} else {
dvander@167	1738	declglb(name,tag,fpublic,fstatic,fstock,fconst);
dvander@167	1739	}
dvander@27	1740	} /* if */
dvander@27	1741	} /* if */
dvander@27	1742	}
dvander@27	1743
dvander@167	1744	/* declstruct - declare global struct symbols
dvander@167	1745	*
dvander@167	1746	* global references: glb_declared (altered)
dvander@167	1747	*/
dvander@167	1748	static void declstructvar(char firstname,int fpublic, pstruct_t pstruct)
dvander@167	1749	{
dvander@167	1750	char name[sNAMEMAX+1];
dvander@167	1751	int tok,i;
dvander@167	1752	cell val;
dvander@167	1753	char *str;
dvander@167	1754	int cur_litidx = 0;
dvander@167	1755	cell values, found;
dvander@167	1756	int usage;
dvander@169	1757	symbol mysym,sym;
dvander@167	1758
dvander@167	1759	strcpy(name, firstname);
dvander@167	1760
dvander@167	1761	values = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1762	found = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1763
dvander@167	1764	memset(found, 0, sizeof(cell) * pstruct->argcount);
dvander@167	1765
dvander@169	1766	//:TODO: Make this work with stock
dvander@167	1767
dvander@167	1768	/**
dvander@167	1769	* Lastly, very lastly, we will insert a copy of this variable.
dvander@167	1770	* This is soley to expose the pubvar.
dvander@167	1771	*/
dvander@169	1772	usage = uREAD\|uCONST\|uSTRUCT;
dvander@167	1773	if (fpublic)
dvander@167	1774	{
dvander@167	1775	usage \|= uPUBLIC;
dvander@167	1776	}
dvander@169	1777	mysym = NULL;
dvander@169	1778	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@169	1779	{
dvander@169	1780	if (strcmp(name, sym->name) == 0)
dvander@169	1781	{
dvander@169	1782	if ((sym->usage & uSTRUCT) && sym->vclass == sGLOBAL)
dvander@169	1783	{
dvander@169	1784	if (sym->usage & uDEFINE)
dvander@169	1785	{
dvander@169	1786	error(21, name);
dvander@169	1787	} else {
dvander@169	1788	if (sym->usage & uPUBLIC && !fpublic)
dvander@169	1789	{
dvander@169	1790	error(42);
dvander@169	1791	}
dvander@169	1792	}
dvander@169	1793	} else {
dvander@169	1794	error(21, name);
dvander@169	1795	}
dvander@169	1796	mysym = sym;
dvander@169	1797	break;
dvander@169	1798	}
dvander@169	1799	}
dvander@169	1800	if (!mysym)
dvander@169	1801	{
dvander@169	1802	mysym=addsym(name, 0, iVARIABLE, sGLOBAL, pc_addtag(pstruct->name), usage);
dvander@169	1803	}
dvander@169	1804
dvander@169	1805	if (!matchtoken('='))
dvander@167	1806	{
dvander@167	1807	matchtoken(';');
dvander@169	1808	/* Mark it as undefined instead */
dvander@169	1809	mysym->usage = uSTOCK\|uSTRUCT;
dvander@167	1810	return;
dvander@169	1811	} else {
dvander@169	1812	mysym->usage = usage;
dvander@167	1813	}
dvander@167	1814	needtoken('{');
dvander@167	1815	do
dvander@167	1816	{
dvander@167	1817	structarg_t *arg;
dvander@167	1818	/* Detect early exit */
dvander@167	1819	if (matchtoken('}'))
dvander@167	1820	{
dvander@167	1821	lexpush();
dvander@167	1822	break;
dvander@167	1823	}
dvander@167	1824	tok=lex(&val,&str);
dvander@167	1825	if (tok != tSYMBOL)
dvander@167	1826	{
dvander@167	1827	error(1, "-identifier-", str);
dvander@167	1828	continue;
dvander@167	1829	}
dvander@167	1830	arg=pstructs_getarg(pstruct,str);
dvander@167	1831	if (arg == NULL)
dvander@167	1832	{
ds@841	1833	error(96, str, sym->name);
dvander@167	1834	}
dvander@167	1835	needtoken('=');
dvander@167	1836	cur_litidx = litidx;
dvander@167	1837	tok=lex(&val,&str);
dvander@167	1838	if (!arg)
dvander@167	1839	{
dvander@167	1840	continue;
dvander@167	1841	}
dvander@167	1842	if (tok == tSTRING)
dvander@167	1843	{
dvander@167	1844	assert(litidx != 0);
dvander@167	1845	if (arg->dimcount != 1)
dvander@167	1846	{
dvander@167	1847	error(48);
dvander@167	1848	} else if (arg->tag != pc_tag_string) {
dvander@167	1849	error(213);
dvander@167	1850	}
dvander@167	1851	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1852	glb_declared += (litidx-cur_litidx);
dvander@167	1853	found[arg->index] = 1;
dvander@167	1854	} else if (tok == tNUMBER \|\| tok == tRATIONAL) {
dvander@167	1855	/* eat optional 'f' */
dvander@167	1856	matchtoken('f');
dvander@167	1857	if (arg->ident != iVARIABLE && arg->ident != iREFERENCE)
dvander@167	1858	{
dvander@167	1859	error(23);
dvander@167	1860	} else {
dvander@167	1861	if (arg->tag == pc_addtag("Float") && tok == tNUMBER \|\|
dvander@167	1862	arg->tag == 0 && tok == tRATIONAL)
dvander@167	1863	{
dvander@167	1864	error(213);
dvander@167	1865	}
dvander@167	1866	if (arg->ident == iVARIABLE)
dvander@167	1867	{
dvander@167	1868	values[arg->index] = val;
dvander@167	1869	} else if (arg->ident == iREFERENCE) {
dvander@167	1870	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1871	glb_declared += 1;
dvander@167	1872	litadd(val);
dvander@167	1873	cur_litidx = litidx;
dvander@167	1874	}
dvander@167	1875	found[arg->index] = 1;
dvander@167	1876	}
dvander@167	1877	} else if (tok == tSYMBOL) {
dvander@167	1878	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@167	1879	{
dvander@167	1880	if (sym->vclass != sGLOBAL)
dvander@167	1881	{
dvander@167	1882	continue;
dvander@167	1883	}
dvander@167	1884	if (strcmp(sym->name, str) == 0)
dvander@167	1885	{
dvander@167	1886	if (arg->ident == iREFERENCE && sym->ident != iVARIABLE)
dvander@167	1887	{
ds@841	1888	error(97, str);
dvander@167	1889	} else if (arg->ident == iARRAY) {
dvander@167	1890	if (sym->ident != iARRAY)
dvander@167	1891	{
ds@841	1892	error(97, str);
dvander@167	1893	} else {
dvander@167	1894	/* :TODO: We should check dimension sizes here... */
dvander@167	1895	}
dvander@167	1896	} else if (arg->ident == iREFARRAY) {
dvander@167	1897	if (sym->ident != iARRAY)
dvander@167	1898	{
ds@841	1899	error(97, str);
dvander@167	1900	}
dvander@167	1901	/* :TODO: Check dimension sizes! */
dvander@167	1902	} else {
ds@841	1903	error(97, str);
dvander@167	1904	}
dvander@167	1905	if (sym->tag != arg->tag)
dvander@167	1906	{
dvander@167	1907	error(213);
dvander@167	1908	}
dvander@167	1909	sym->usage \|= uREAD;
dvander@167	1910	values[arg->index] = sym->addr;
dvander@167	1911	found[arg->index] = 1;
dvander@167	1912	refer_symbol(sym, mysym);
dvander@167	1913	break;
dvander@167	1914	}
dvander@167	1915	}
dvander@167	1916	if (!sym)
dvander@167	1917	{
dvander@167	1918	error(17, str);
dvander@167	1919	}
dvander@167	1920	} else {
dvander@167	1921	error(1, "-identifier-", str);
dvander@167	1922	}
dvander@167	1923	} while (matchtoken(','));
dvander@167	1924	needtoken('}');
dvander@167	1925	matchtoken(';'); /* eat up optional semicolon */
dvander@167	1926
dvander@167	1927	for (i=0; i<pstruct->argcount; i++)
dvander@167	1928	{
dvander@167	1929	if (!found[i])
dvander@167	1930	{
dvander@167	1931	structarg_t *arg = pstruct->args[i];
dvander@167	1932	if (arg->ident == iREFARRAY)
dvander@167	1933	{
dvander@167	1934	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1935	glb_declared += 1;
dvander@167	1936	litadd(0);
dvander@167	1937	cur_litidx = litidx;
dvander@167	1938	} else if (arg->ident == iVARIABLE) {
dvander@167	1939	values[arg->index] = 0;
dvander@167	1940	} else {
dvander@167	1941	/* :TODO: broken for iARRAY! (unused tho) */
dvander@167	1942	}
dvander@167	1943	}
dvander@167	1944	}
dvander@167	1945
dvander@167	1946	mysym->addr = glb_declared * sizeof(cell);
dvander@167	1947	glb_declared += pstruct->argcount;
dvander@167	1948
dvander@167	1949	for (i=0; i<pstruct->argcount; i++)
dvander@167	1950	{
dvander@167	1951	litadd(values[i]);
dvander@167	1952	}
dvander@167	1953
dvander@167	1954	begdseg();
dvander@167	1955	dumplits();
dvander@167	1956	litidx=0;
dvander@167	1957
dvander@167	1958	free(found);
dvander@167	1959	free(values);
dvander@167	1960	}
dvander@167	1961
dvander@27	1962	/* declglb - declare global symbols
dvander@27	1963	*
dvander@27	1964	* Declare a static (global) variable. Global variables are stored in
dvander@27	1965	* the DATA segment.
dvander@27	1966	*
dvander@27	1967	* global references: glb_declared (altered)
dvander@27	1968	*/
dvander@27	1969	static void declglb(char *firstname,int firsttag,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1970	{
dvander@27	1971	int ident,tag,ispublic;
dvander@27	1972	int idxtag[sDIMEN_MAX];
dvander@27	1973	char name[sNAMEMAX+1];
dvander@27	1974	cell val,size,cidx;
dvander@27	1975	ucell address;
dvander@27	1976	int glb_incr;
dvander@27	1977	char *str;
dvander@27	1978	int dim[sDIMEN_MAX];
dvander@27	1979	int numdim;
dvander@286	1980	int slength=0;
dvander@27	1981	short filenum;
dvander@27	1982	symbol *sym;
dvander@27	1983	constvalue *enumroot;
dvander@27	1984	#if !defined NDEBUG
dvander@27	1985	cell glbdecl=0;
dvander@27	1986	#endif
dvander@27	1987
dvander@27	1988	assert(!fpublic \|\| !fstatic); /* may not both be set */
dvander@27	1989	insert_docstring_separator(); /* see comment in newfunc() */
dvander@27	1990	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	1991	do {
dvander@27	1992	size=1; /* single size (no array) */
dvander@27	1993	numdim=0; /* no dimensions */
dvander@27	1994	ident=iVARIABLE;
dvander@27	1995	if (firstname!=NULL) {
dvander@27	1996	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	1997	strcpy(name,firstname); /* save symbol name */
dvander@27	1998	tag=firsttag;
dvander@27	1999	firstname=NULL;
dvander@27	2000	} else {
dvander@27	2001	tag=pc_addtag(NULL);
dvander@27	2002	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	2003	error(20,str); /* invalid symbol name */
dvander@27	2004	assert(strlen(str)<=sNAMEMAX);
dvander@27	2005	strcpy(name,str); /* save symbol name */
dvander@27	2006	} /* if */
dvander@27	2007	ispublic=fpublic;
dvander@27	2008	if (name[0]==PUBLIC_CHAR) {
dvander@27	2009	ispublic=TRUE; /* implicitly public variable */
dvander@27	2010	assert(!fstatic);
dvander@27	2011	} /* if */
dvander@118	2012	while (matchtoken('[')) {
dvander@27	2013	ident=iARRAY;
dvander@27	2014	if (numdim == sDIMEN_MAX) {
dvander@27	2015	error(53); /* exceeding maximum number of dimensions */
dvander@27	2016	return;
dvander@27	2017	} /* if */
dvander@27	2018	size=needsub(&idxtag[numdim],&enumroot); /* get size; size==0 for "var[]" */
dvander@27	2019	#if INT_MAX < LONG_MAX
dvander@27	2020	if (size > INT_MAX)
ds@841	2021	error(125); /* overflow, exceeding capacity */
dvander@27	2022	#endif
dvander@127	2023	#if 0 /* We don't actually care */
dvander@27	2024	if (ispublic)
dvander@27	2025	error(56,name); /* arrays cannot be public */
dvander@127	2026	#endif
dvander@27	2027	dim[numdim++]=(int)size;
dvander@27	2028	} /* while */
dvander@286	2029	if (ident == iARRAY && tag == pc_tag_string && dim[numdim-1]) {
dvander@286	2030	slength=dim[numdim-1];
dvander@151	2031	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@286	2032	}
dvander@27	2033	assert(sc_curstates==0);
dvander@27	2034	sc_curstates=getstates(name);
dvander@27	2035	if (sc_curstates<0) {
dvander@27	2036	error(85,name); /* empty state list on declaration */
dvander@27	2037	sc_curstates=0;
dvander@27	2038	} else if (sc_curstates>0 && ispublic) {
dvander@27	2039	error(88,name); /* public variables may not have states */
dvander@27	2040	sc_curstates=0;
dvander@27	2041	} /* if */
dvander@27	2042	sym=findconst(name,NULL);
dvander@27	2043	if (sym==NULL) {
dvander@27	2044	sym=findglb(name,sSTATEVAR);
dvander@27	2045	/* if a global variable without states is found and this declaration has
dvander@27	2046	* states, the declaration is okay
dvander@27	2047	*/
dvander@27	2048	if (sym!=NULL && sym->states==NULL && sc_curstates>0)
dvander@27	2049	sym=NULL; /* set to NULL, we found the global variable */
dvander@27	2050	if (sc_curstates>0 && findglb(name,sGLOBAL)!=NULL)
dvander@27	2051	error(233,name); /* state variable shadows a global variable */
dvander@27	2052	} /* if */
dvander@27	2053	/* we have either:
dvander@27	2054	* a) not found a matching variable (or rejected it, because it was a shadow)
dvander@27	2055	* b) found a global variable and we were looking for that global variable
dvander@27	2056	* c) found a state variable in the automaton that we were looking for
dvander@27	2057	*/
dvander@27	2058	assert(sym==NULL
dvander@27	2059	\|\| sym->states==NULL && sc_curstates==0
dvander@27	2060	\|\| sym->states!=NULL && sym->next!=NULL && sym->states->next->index==sc_curstates);
dvander@27	2061	/* a state variable may only have a single id in its list (so either this
dvander@27	2062	* variable has no states, or it has a single list)
dvander@27	2063	*/
dvander@27	2064	assert(sym==NULL \|\| sym->states==NULL \|\| sym->states->next->next==NULL);
dvander@27	2065	/* it is okay for the (global) variable to exist, as long as it belongs to
dvander@27	2066	* a different automaton
dvander@27	2067	*/
dvander@27	2068	if (sym!=NULL && (sym->usage & uDEFINE)!=0)
dvander@27	2069	error(21,name); /* symbol already defined */
dvander@27	2070	/* if this variable is never used (which can be detected only in the
dvander@27	2071	* second stage), shut off code generation
dvander@27	2072	*/
dvander@27	2073	cidx=0; /* only to avoid a compiler warning */
dvander@27	2074	if (sc_status==statWRITE && sym!=NULL && (sym->usage & (uREAD \| uWRITTEN))==0) {
dvander@27	2075	sc_status=statSKIP;
dvander@27	2076	cidx=code_idx;
dvander@27	2077	#if !defined NDEBUG
dvander@27	2078	glbdecl=glb_declared;
dvander@27	2079	#endif
dvander@27	2080	} /* if */
dvander@27	2081	begdseg(); /* real (initialized) data in data segment */
dvander@27	2082	assert(litidx==0); /* literal queue should be empty */
dvander@27	2083	if (sc_alignnext) {
dvander@27	2084	litidx=0;
dvander@27	2085	aligndata(sc_dataalign);
dvander@27	2086	dumplits(); /* dump the literal queue */
dvander@27	2087	sc_alignnext=FALSE;
dvander@27	2088	litidx=0; /* global initial data is dumped, so restart at zero */
dvander@27	2089	} /* if */
dvander@27	2090	assert(litidx==0); /* literal queue should be empty (again) */
dvander@27	2091	initials(ident,tag,&size,dim,numdim,enumroot);/* stores values in the literal queue */
dvander@510	2092	if (tag == pc_tag_string && (numdim == 1) && !dim[numdim-1]) {
dvander@510	2093	slength = glbstringread;
dvander@510	2094	}
dvander@27	2095	assert(size>=litidx);
dvander@27	2096	if (numdim==1)
dvander@27	2097	dim[0]=(int)size;
dvander@27	2098	/* before dumping the initial values (or zeros) check whether this variable
dvander@27	2099	* overlaps another
dvander@27	2100	*/
dvander@27	2101	if (sc_curstates>0) {
dvander@27	2102	unsigned char *map;
dvander@27	2103
dvander@27	2104	if (litidx!=0)
dvander@27	2105	error(89,name); /* state variables may not be initialized */
dvander@27	2106	/* find an appropriate address for the state variable */
dvander@27	2107	/* assume that it cannot be found */
dvander@27	2108	address=sizeof(cell)*glb_declared;
dvander@27	2109	glb_incr=(int)size;
dvander@27	2110	/* use a memory map in which every cell occupies one bit */
dvander@27	2111	if (glb_declared>0 && (map=(unsigned char*)malloc((glb_declared+7)/8))!=NULL) {
dvander@27	2112	int fsa=state_getfsa(sc_curstates);
dvander@27	2113	symbol *sweep;
dvander@27	2114	cell sweepsize,addr;
dvander@27	2115	memset(map,0,(glb_declared+7)/8);
dvander@27	2116	assert(fsa>=0);
dvander@27	2117	/* fill in all variables belonging to this automaton */
dvander@27	2118	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2119	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2120	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2121	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2122	continue; /* a function or a constant */
dvander@27	2123	if ((sweep->usage & uDEFINE)==0)
dvander@27	2124	continue; /* undefined variable, ignore */
dvander@27	2125	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2126	continue; /* wrong automaton */
dvander@27	2127	/* when arrived here, this is a global variable, with states and
dvander@27	2128	* belonging to the same automaton as the variable we are declaring
dvander@27	2129	*/
dvander@27	2130	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2131	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2132	addr=sweep->addr/sizeof(cell);
dvander@27	2133	/* mark this address range */
dvander@27	2134	while (sweepsize-->0) {
dvander@27	2135	map[addr/8] \|= (unsigned char)(1 << (addr % 8));
dvander@27	2136	addr++;
dvander@27	2137	} /* while */
dvander@27	2138	} /* for */
dvander@27	2139	/* go over it again, clearing any ranges that have conflicts */
dvander@27	2140	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2141	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2142	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2143	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2144	continue; /* a function or a constant */
dvander@27	2145	if ((sweep->usage & uDEFINE)==0)
dvander@27	2146	continue; /* undefined variable, ignore */
dvander@27	2147	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2148	continue; /* wrong automaton */
dvander@27	2149	/* when arrived here, this is a global variable, with states and
dvander@27	2150	* belonging to the same automaton as the variable we are declaring
dvander@27	2151	*/
dvander@27	2152	/* if the lists of states of the existing variable and the new
dvander@27	2153	* variable have a non-empty intersection, this is not a suitable
dvander@27	2154	* overlap point -> wipe the address range
dvander@27	2155	*/
dvander@27	2156	if (state_conflict_id(sc_curstates,sweep->states->next->index)) {
dvander@27	2157	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2158	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2159	addr=sweep->addr/sizeof(cell);
dvander@27	2160	/* mark this address range */
dvander@27	2161	while (sweepsize-->0) {
dvander@27	2162	map[addr/8] &= (unsigned char)(~(1 << (addr % 8)));
dvander@27	2163	addr++;
dvander@27	2164	} /* while */
dvander@27	2165	} /* if */
dvander@27	2166	} /* for */
dvander@27	2167	/* now walk through the map and find a starting point that is big enough */
dvander@27	2168	sweepsize=0;
dvander@27	2169	for (addr=0; addr<glb_declared; addr++) {
dvander@27	2170	if ((map[addr/8] & (1 << (addr % 8)))==0)
dvander@27	2171	continue;
dvander@27	2172	for (sweepsize=addr+1; sweepsize<glb_declared; sweepsize++) {
dvander@27	2173	if ((map[sweepsize/8] & (1 << (sweepsize % 8)))==0)
dvander@27	2174	break; /* zero bit found, skip this range */
dvander@27	2175	if (sweepsize-addr>=size)
dvander@27	2176	break; /* fitting range found, no need to search further */
dvander@27	2177	} /* for */
dvander@27	2178	if (sweepsize-addr>=size)
dvander@27	2179	break; /* fitting range found, no need to search further */
dvander@27	2180	addr=sweepsize;
dvander@27	2181	} /* for */
dvander@27	2182	free(map);
dvander@27	2183	if (sweepsize-addr>=size) {
dvander@27	2184	address=sizeof(cell)addr; / fitting range found, set it */
dvander@27	2185	glb_incr=0;
dvander@27	2186	} /* if */
dvander@27	2187	} /* if */
dvander@27	2188	} else {
dvander@27	2189	address=sizeof(cell)*glb_declared;
dvander@27	2190	glb_incr=(int)size;
dvander@27	2191	} /* if */
dvander@1046	2192	if (size != CELL_MAX && address==sizeof(cell)*glb_declared) {
dvander@27	2193	dumplits(); /* dump the literal queue */
dvander@27	2194	dumpzero((int)size-litidx);
dvander@27	2195	} /* if */
dvander@27	2196	litidx=0;
dvander@27	2197	if (sym==NULL) { /* define only if not yet defined */
dvander@286	2198	sym=addvariable2(name,address,ident,sGLOBAL,tag,dim,numdim,idxtag,slength);
dvander@27	2199	if (sc_curstates>0)
dvander@27	2200	attachstatelist(sym,sc_curstates);
dvander@27	2201	} else { /* if declared but not yet defined, adjust the variable's address */
dvander@27	2202	assert(sym->states==NULL && sc_curstates==0
dvander@27	2203	\|\| sym->states->next!=NULL && sym->states->next->index==sc_curstates && sym->states->next->next==NULL);
dvander@27	2204	sym->addr=address;
dvander@27	2205	sym->codeaddr=code_idx;
dvander@27	2206	sym->usage\|=uDEFINE;
dvander@27	2207	} /* if */
dvander@27	2208	assert(sym!=NULL);
dvander@27	2209	sc_curstates=0;
dvander@27	2210	if (ispublic)
dvander@127	2211	sym->usage\|=uPUBLIC\|uREAD;
dvander@27	2212	if (fconst)
dvander@27	2213	sym->usage\|=uCONST;
dvander@27	2214	if (fstock)
dvander@27	2215	sym->usage\|=uSTOCK;
dvander@27	2216	if (fstatic)
dvander@27	2217	sym->fnumber=filenum;
dvander@27	2218	sc_attachdocumentation(sym);/* attach any documenation to the variable */
dvander@27	2219	if (sc_status==statSKIP) {
dvander@27	2220	sc_status=statWRITE;
dvander@27	2221	code_idx=cidx;
dvander@27	2222	assert(glb_declared==glbdecl);
dvander@27	2223	} else {
dvander@27	2224	glb_declared+=glb_incr; /* add total number of cells (if added to the end) */
dvander@27	2225	} /* if */
dvander@27	2226	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2227	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2228	}
dvander@27	2229
dvander@27	2230	/* declloc - declare local symbols
dvander@27	2231	*
dvander@27	2232	* Declare local (automatic) variables. Since these variables are relative
dvander@27	2233	* to the STACK, there is no switch to the DATA segment. These variables
dvander@27	2234	* cannot be initialized either.
dvander@27	2235	*
dvander@27	2236	* global references: declared (altered)
dvander@27	2237	* funcstatus (referred to only)
dvander@27	2238	*/
dvander@27	2239	static int declloc(int fstatic)
dvander@27	2240	{
dvander@27	2241	int ident,tag;
dvander@27	2242	int idxtag[sDIMEN_MAX];
dvander@27	2243	char name[sNAMEMAX+1];
dvander@27	2244	symbol *sym;
dvander@152	2245	constvalue *enumroot=NULL;
dvander@27	2246	cell val,size;
dvander@27	2247	char *str;
dvander@27	2248	value lval = {0};
dvander@27	2249	int cur_lit=0;
dvander@27	2250	int dim[sDIMEN_MAX];
dvander@27	2251	int numdim;
dvander@27	2252	int fconst;
dvander@27	2253	int staging_start;
dvander@286	2254	int slength = 0;
dvander@27	2255
dvander@27	2256	fconst=matchtoken(tCONST);
dvander@27	2257	do {
dvander@27	2258	ident=iVARIABLE;
dvander@27	2259	size=1;
dvander@510	2260	slength=0;
dvander@27	2261	numdim=0; /* no dimensions */
dvander@27	2262	tag=pc_addtag(NULL);
dvander@27	2263	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	2264	error(20,str); /* invalid symbol name */
dvander@27	2265	assert(strlen(str)<=sNAMEMAX);
dvander@27	2266	strcpy(name,str); /* save symbol name */
dvander@27	2267	if (name[0]==PUBLIC_CHAR)
dvander@27	2268	error(56,name); /* local variables cannot be public */
dvander@27	2269	/* Note: block locals may be named identical to locals at higher
dvander@27	2270	* compound blocks (as with standard C); so we must check (and add)
dvander@27	2271	* the "nesting level" of local variables to verify the
dvander@27	2272	* multi-definition of symbols.
dvander@27	2273	*/
dvander@27	2274	if ((sym=findloc(name))!=NULL && sym->compound==nestlevel)
dvander@27	2275	error(21,name); /* symbol already defined */
dvander@27	2276	/* Although valid, a local variable whose name is equal to that
dvander@27	2277	* of a global variable or to that of a local variable at a lower
dvander@27	2278	* level might indicate a bug.
dvander@27	2279	*/
dvander@27	2280	if ((sym=findloc(name))!=NULL && sym->compound!=nestlevel \|\| findglb(name,sGLOBAL)!=NULL)
dvander@27	2281	error(219,name); /* variable shadows another symbol */
dvander@118	2282	if (matchtoken('[')) {
dvander@152	2283	int _index;
dvander@152	2284	cell _code;
dvander@152	2285	int dim_ident;
dvander@152	2286	symbol *dim_sym;
dvander@152	2287	value dim_val;
dvander@152	2288	int all_constant = 1;
dvander@152	2289	int _staging = staging;
dvander@152	2290
dvander@152	2291	if (!_staging)
dvander@152	2292	stgset(TRUE);
dvander@152	2293	stgget(&_index, &_code);
dvander@152	2294
dvander@118	2295	do {
dvander@118	2296	if (numdim == sDIMEN_MAX) {
dvander@118	2297	error(53); /* exceeding maximum number of dimensions */
dvander@152	2298	return (all_constant ? iARRAY : iREFARRAY);
dvander@200	2299	} else if (numdim) { /* if */
dvander@200	2300	/* If we have a dimension on the stack, push it */
dvander@200	2301	pushreg(sPRI);
dvander@200	2302	}
dvander@152	2303	if (matchtoken(']')) {
dvander@534	2304	idxtag[numdim] = 0;
dvander@534	2305	dim[numdim] = 0;
dvander@534	2306	numdim++;
dvander@152	2307	continue;
dvander@152	2308	}
dvander@152	2309	dim_ident = doexpr2(TRUE,FALSE,FALSE,FALSE,&idxtag[numdim],&dim_sym,0,&dim_val);
dvander@152	2310	if (dim_ident == iVARIABLE \|\| dim_ident == iEXPRESSION \|\| dim_ident == iARRAYCELL) {
dvander@152	2311	all_constant = 0;
dvander@118	2312	} else if (dim_ident == iCONSTEXPR) {
dvander@152	2313	dim[numdim] = dim_val.constval;
dvander@152	2314	/* :TODO: :URGENT: Make sure this still works */
dvander@152	2315	if (dim_sym && dim_sym->usage & uENUMROOT)
dvander@152	2316	enumroot = dim_sym->dim.enumlist;
dvander@152	2317	idxtag[numdim] = dim_sym ? dim_sym->tag : 0;
dvander@152	2318	#if INT_MAX < LONG_MAX
dvander@152	2319	if (dim[numdim] > INT_MAX)
ds@841	2320	error(125); /* overflow, exceeding capacity */
dvander@152	2321	#endif
dvander@118	2322	} else {
dvander@152	2323	error(29); /* invalid expression, assumed 0 */
dvander@118	2324	}
dvander@119	2325	numdim++;
dvander@152	2326	needtoken(']');
dvander@152	2327	} while (matchtoken('['));
dvander@152	2328	if (all_constant) {
dvander@152	2329	/* Change the last dimension to be based on chars instead if we have a string */
dvander@286	2330	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@286	2331	slength = dim[numdim-1];
dvander@153	2332	dim[numdim-1] = (dim[numdim-1] + sizeof(cell)-1) / sizeof(cell);
dvander@286	2333	}
dvander@152	2334	/* Scrap the code generated */
dvander@152	2335	ident = iARRAY;
dvander@152	2336	stgdel(_index, _code);
dvander@152	2337	} else {
dvander@200	2338	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@200	2339	stradjust(sPRI);
dvander@200	2340	}
dvander@200	2341	pushreg(sPRI);
dvander@152	2342	memset(dim, 0, sizeof(int)*sDIMEN_MAX);
dvander@152	2343	ident = iREFARRAY;
dvander@152	2344	genarray(numdim, autozero);
dvander@152	2345	}
dvander@152	2346	stgout(_index);
dvander@152	2347	if (!_staging)
dvander@152	2348	stgset(FALSE);
dvander@118	2349	}
dvander@27	2350	if (getstates(name))
dvander@27	2351	error(88,name); /* local variables may not have states */
dvander@27	2352	if (ident==iARRAY \|\| fstatic) {
dvander@27	2353	if (sc_alignnext) {
dvander@27	2354	aligndata(sc_dataalign);
dvander@27	2355	sc_alignnext=FALSE;
dvander@27	2356	} /* if */
dvander@27	2357	cur_lit=litidx; /* save current index in the literal table */
dvander@510	2358	if (numdim && !dim[numdim-1])
dvander@510	2359	size = 0;
dvander@27	2360	initials(ident,tag,&size,dim,numdim,enumroot);
dvander@510	2361	if (tag == pc_tag_string && (numdim == 1) && !dim[numdim-1]) {
dvander@510	2362	slength = glbstringread;
dvander@510	2363	}
dvander@27	2364	if (size==0)
dvander@27	2365	return ident; /* error message already given */
dvander@27	2366	if (numdim==1)
dvander@27	2367	dim[0]=(int)size;
dvander@118	2368	}
dvander@27	2369	/* reserve memory (on the stack) for the variable */
dvander@27	2370	if (fstatic) {
dvander@27	2371	/* write zeros for uninitialized fields */
dvander@27	2372	while (litidx<cur_lit+size)
dvander@27	2373	litadd(0);
dvander@286	2374	sym=addvariable2(name,(cur_lit+glb_declared)*sizeof(cell),ident,sSTATIC,
dvander@286	2375	tag,dim,numdim,idxtag,slength);
dvander@118	2376	} else if (ident!=iREFARRAY) {
dvander@27	2377	declared+=(int)size; /* variables are put on stack, adjust "declared" */
dvander@286	2378	sym=addvariable2(name,-declared*sizeof(cell),ident,sLOCAL,tag,
dvander@286	2379	dim,numdim,idxtag,slength);
dvander@27	2380	if (ident==iVARIABLE) {
dvander@27	2381	assert(!staging);
dvander@27	2382	stgset(TRUE); /* start stage-buffering */
dvander@27	2383	assert(stgidx==0);
dvander@27	2384	staging_start=stgidx;
dvander@27	2385	} /* if */
dvander@27	2386	markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@27	2387	modstk(-(int)size*sizeof(cell));
dvander@117	2388	markstack(MEMUSE_STATIC, size);
dvander@27	2389	assert(curfunc!=NULL);
dvander@27	2390	assert((curfunc->usage & uNATIVE)==0);
dvander@27	2391	if (curfunc->x.stacksize<declared+1)
dvander@27	2392	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@118	2393	} else if (ident==iREFARRAY) {
dvander@118	2394	declared+=1; /* one cell for address */
dvander@118	2395	sym=addvariable(name,-declared*sizeof(cell),ident,sLOCAL,tag,dim,numdim,idxtag);
dvander@118	2396	//markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@118	2397	/* genarray() pushes the address onto the stack, so we don't need to call modstk() here! */
dvander@118	2398	markheap(MEMUSE_DYNAMIC, 0);
dvander@119	2399	markstack(MEMUSE_STATIC, 1);
dvander@118	2400	assert(curfunc != NULL && ((curfunc->usage & uNATIVE) == 0));
dvander@118	2401	if (curfunc->x.stacksize<declared+1)
dvander@118	2402	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@27	2403	} /* if */
dvander@27	2404	/* now that we have reserved memory for the variable, we can proceed
dvander@27	2405	* to initialize it */
dvander@27	2406	assert(sym!=NULL); /* we declared it, it must be there */
dvander@27	2407	sym->compound=nestlevel; /* for multiple declaration/shadowing check */
dvander@27	2408	if (fconst)
dvander@27	2409	sym->usage\|=uCONST;
dvander@27	2410	if (!fstatic) { /* static variables already initialized */
dvander@27	2411	if (ident==iVARIABLE) {
dvander@27	2412	/* simple variable, also supports initialization */
dvander@27	2413	int ctag = tag; /* set to "tag" by default */
dvander@27	2414	int explicit_init=FALSE;/* is the variable explicitly initialized? */
dvander@151	2415	int cident=ident;
dvander@27	2416	if (matchtoken('=')) {
dvander@27	2417	if (!autozero)
dvander@27	2418	error(10);
dvander@151	2419	cident=doexpr(FALSE,FALSE,FALSE,FALSE,&ctag,NULL,TRUE);
dvander@27	2420	explicit_init=TRUE;
dvander@27	2421	} else {
dvander@27	2422	if (autozero)
dvander@27	2423	ldconst(0,sPRI); /* uninitialized variable, set to zero */
dvander@27	2424	} /* if */
dvander@27	2425	if (autozero) {
dvander@27	2426	/* now try to save the value (still in PRI) in the variable */
dvander@27	2427	lval.sym=sym;
dvander@27	2428	lval.ident=iVARIABLE;
dvander@27	2429	lval.constval=0;
dvander@27	2430	lval.tag=tag;
dvander@27	2431	check_userop(NULL,ctag,lval.tag,2,NULL,&ctag);
dvander@27	2432	store(&lval);
dvander@27	2433	markexpr(sEXPR,NULL,0); /* full expression ends after the store */
dvander@27	2434	}
dvander@27	2435	assert(staging); /* end staging phase (optimize expression) */
dvander@27	2436	stgout(staging_start);
dvander@27	2437	stgset(FALSE);
dvander@151	2438	if (!matchtag_string(cident, ctag) && !matchtag(tag,ctag,TRUE))
ds@844	2439	{
ds@844	2440	if (tag & FUNCTAG)
ds@844	2441	error(100); /* error - function prototypes do not match */
ds@844	2442	else
ds@844	2443	error(213); /* warning - tag mismatch */
ds@844	2444	}
dvander@27	2445	/* if the variable was not explicitly initialized, reset the
dvander@27	2446	* "uWRITTEN" flag that store() set */
dvander@27	2447	if (!explicit_init)
dvander@27	2448	sym->usage &= ~uWRITTEN;
dvander@118	2449	} else if (ident!=iREFARRAY) {
dvander@27	2450	/* an array */
dvander@27	2451	assert(cur_lit>=0 && cur_lit<=litidx && litidx<=litmax);
dvander@27	2452	assert(size>0 && size>=sym->dim.array.length);
dvander@27	2453	assert(numdim>1 \|\| size==sym->dim.array.length);
dvander@27	2454	if (autozero) {
dvander@27	2455	/* final literal values that are zero make no sense to put in the literal
dvander@27	2456	* pool, because values get zero-initialized anyway; we check for this,
dvander@27	2457	* because users often explicitly initialize strings to ""
dvander@27	2458	*/
dvander@27	2459	while (litidx>cur_lit && litq[litidx-1]==0)
dvander@27	2460	litidx--;
dvander@27	2461	/* if the array is not completely filled, set all values to zero first */
dvander@27	2462	if (litidx-cur_lit<size && (ucell)size<CELL_MAX)
dvander@27	2463	fillarray(sym,size*sizeof(cell),0);
dvander@27	2464	}
dvander@27	2465	if (cur_lit<litidx) {
dvander@27	2466	/* check whether the complete array is set to a single value; if
dvander@27	2467	* it is, more compact code can be generated */
dvander@27	2468	cell first=litq[cur_lit];
dvander@27	2469	int i;
dvander@27	2470	for (i=cur_lit; i<litidx && litq[i]==first; i++)
dvander@27	2471	/* nothing */;
dvander@27	2472	if (i==litidx) {
dvander@27	2473	/* all values are the same */
dvander@27	2474	fillarray(sym,(litidx-cur_lit)*sizeof(cell),first);
dvander@27	2475	litidx=cur_lit; /* reset literal table */
dvander@27	2476	} else {
dvander@27	2477	/* copy the literals to the array */
dvander@27	2478	ldconst((cur_lit+glb_declared)*sizeof(cell),sPRI);
dvander@27	2479	copyarray(sym,(litidx-cur_lit)*sizeof(cell));
dvander@27	2480	} /* if */
dvander@27	2481	} /* if */
dvander@27	2482	} /* if */
dvander@27	2483	} /* if */
dvander@27	2484	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2485	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2486	return ident;
dvander@27	2487	}
dvander@27	2488
dvander@27	2489	/* this function returns the maximum value for a cell in case of an error
dvander@27	2490	* (invalid dimension).
dvander@27	2491	*/
dvander@27	2492	static cell calc_arraysize(int dim[],int numdim,int cur)
dvander@27	2493	{
dvander@27	2494	cell subsize;
dvander@27	2495	ucell newsize;
dvander@27	2496
dvander@27	2497	/* the return value is in cells, not bytes */
dvander@27	2498	assert(cur>=0 && cur<=numdim);
dvander@27	2499	if (cur==numdim)
dvander@27	2500	return 0;
dvander@27	2501	subsize=calc_arraysize(dim,numdim,cur+1);
dvander@27	2502	newsize=dim[cur]+dim[cur]*subsize;
dvander@842	2503	if ((ucell)subsize>=CELL_MAX \|\| newsize>=CELL_MAX \|\| newsize*sizeof(cell)>=CELL_MAX)
dvander@27	2504	return CELL_MAX;
dvander@27	2505	return newsize;
dvander@27	2506	}
dvander@27	2507
dvander@1472	2508	static cell gen_indirection_vecs(array_info_t *ar, int dim, cell cur_offs)
dvander@1472	2509	{
dvander@1472	2510	int i;
dvander@1472	2511	cell write_offs = cur_offs;
dvander@1472	2512	cell *data_offs = ar->data_offs;
dvander@1472	2513
dvander@1472	2514	cur_offs += ar->dim_list[dim];
dvander@1472	2515
dvander@1472	2516	/**
dvander@1472	2517	* Dimension n-x where x > 2 will have sub-vectors.
dvander@1472	2518	* Otherwise, we just need to reference the data section.
dvander@1472	2519	*/
dvander@1472	2520	if (ar->dim_count > 2 && dim < ar->dim_count - 2)
dvander@1472	2521	{
dvander@1472	2522	/**
dvander@1472	2523	* For each index at this dimension, write offstes to our sub-vectors.
dvander@1472	2524	* After we write one sub-vector, we generate its sub-vectors recursively.
dvander@1472	2525	* At the end, we're given the next offset we can use.
dvander@1472	2526	*/
dvander@1472	2527	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2528	{
dvander@1472	2529	ar->base[write_offs] = (cur_offs - write_offs) * sizeof(cell);
dvander@1472	2530	write_offs++;
dvander@1472	2531	ar->cur_dims[dim] = i;
dvander@1472	2532	cur_offs = gen_indirection_vecs(ar, dim + 1, cur_offs);
dvander@1472	2533	}
dvander@1472	2534	} else if (ar->dim_count > 1) {
dvander@1472	2535	/**
dvander@1472	2536	* In this section, there are no sub-vectors, we need to write offsets
dvander@1472	2537	* to the data. This is separate so the data stays in one big chunk.
dvander@1472	2538	* The data offset will increment by the size of the last dimension,
dvander@1472	2539	* because that is where the data is finally computed as. But the last
dvander@1472	2540	* dimension can be of variable size, so we have to detect that.
dvander@1472	2541	*/
dvander@1472	2542	if (ar->dim_list[dim + 1] == 0)
dvander@1472	2543	{
dvander@1472	2544	int vec_start = 0;
dvander@1472	2545
dvander@1472	2546	/**
dvander@1472	2547	* Using the precalculated offsets, compute an index into the last
dvander@1472	2548	* dimension array.
dvander@1472	2549	*/
dvander@1472	2550	for (i = 0; i < dim; i++)
dvander@1472	2551	{
dvander@1472	2552	vec_start += ar->cur_dims[i] * ar->dim_offs_precalc[i];
dvander@1472	2553	}
dvander@1472	2554
dvander@1472	2555	/**
dvander@1472	2556	* Now, vec_start points to a vector of last dimension offsets for
dvander@1472	2557	* the preceding dimension combination(s).
dvander@1472	2558	* I.e. (1,2,i,j) in [3][4][5][] will be:
dvander@1472	2559	* j = 1(45) + 2*(5) + i, and the parenthetical expressions are
dvander@1472	2560	* precalculated for us so we can easily generalize here.
dvander@1472	2561	*/
dvander@1472	2562	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2563	{
dvander@1472	2564	ar->base[write_offs] = (data_offs - write_offs) sizeof(cell);
dvander@1472	2565	write_offs++;
dvander@1472	2566	data_offs = data_offs + ar->lastdim_list[vec_start + i];
dvander@1472	2567	}
dvander@1472	2568	} else {
dvander@1472	2569	/**
dvander@1472	2570	* The last dimension size is constant. There's no extra work to
dvander@1472	2571	* compute the last dimension size.
dvander@1472	2572	*/
dvander@1472	2573	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2574	{
dvander@1472	2575	ar->base[write_offs] = (data_offs - write_offs) sizeof(cell);
dvander@1472	2576	write_offs++;
dvander@1472	2577	data_offs = data_offs + ar->dim_list[dim + 1];
dvander@1472	2578	}
dvander@1472	2579	}
dvander@1472	2580	}
dvander@1472	2581
dvander@1472	2582	return cur_offs;
dvander@1472	2583	}
dvander@1472	2584
dvander@1472	2585	static cell calc_indirection(const int dim_list[], int dim_count, int dim)
dvander@1472	2586	{
dvander@1472	2587	cell size = dim_list[dim];
dvander@1472	2588
dvander@1472	2589	if (dim < dim_count - 2)
dvander@1472	2590	{
dvander@1472	2591	size += dim_list[dim] * calc_indirection(dim_list, dim_count, dim + 1);
dvander@1472	2592	}
dvander@1472	2593
dvander@1472	2594	return size;
dvander@1472	2595	}
dvander@1472	2596
dvander@1472	2597	static void adjust_indirectiontables(int dim[],int numdim,int cur,cell increment,
dvander@27	2598	int startlit,constvalue lastdim,int skipdim)
dvander@27	2599	{
dvander@1472	2600	/* Find how many cells the indirection table will be */
dvander@1472	2601	cell tbl_size;
dvander@1472	2602	int *dyn_list = NULL;
dvander@1472	2603	int cur_dims[sDIMEN_MAX];
dvander@1472	2604	cell dim_offset_precalc[sDIMEN_MAX];
dvander@1472	2605	array_info_t ar;
dvander@1472	2606
dvander@1472	2607	if (numdim == 1)
dvander@1472	2608	{
dvander@1472	2609	return;
dvander@1472	2610	}
dvander@1472	2611
dvander@1472	2612	tbl_size = calc_indirection(dim, numdim, 0);
dvander@1472	2613	memset(cur_dims, 0, sizeof(cur_dims));
dvander@1472	2614
dvander@1472	2615	/**
dvander@1472	2616	* Flatten the last dimension array list -- this makes
dvander@1472	2617	* things MUCH easier in the indirection calculator.
dvander@1472	2618	*/
dvander@1472	2619	if (lastdim)
dvander@1472	2620	{
dvander@1472	2621	int i;
dvander@1472	2622	constvalue *ld = lastdim->next;
dvander@1472	2623
dvander@1472	2624	/* Get the total number of last dimensions. */
dvander@1472	2625	for (i = 0; ld != NULL; i++, ld = ld->next)
dvander@1472	2626	{
dvander@1472	2627	/* Nothing */
dvander@1472	2628	}
dvander@1472	2629	/* Store them in an array instead of a linked list. */
dvander@1472	2630	dyn_list = (int )malloc(sizeof(int) i);
dvander@1472	2631	for (i = 0, ld = lastdim->next;
dvander@1472	2632	ld != NULL;
dvander@1472	2633	i++, ld = ld->next)
dvander@1472	2634	{
dvander@1472	2635	dyn_list[i] = ld->value;
dvander@1472	2636	}
dvander@1472	2637
dvander@1472	2638	/**
dvander@1472	2639	* Pre-calculate all of the offsets. This speeds up and simplifies
dvander@1472	2640	* the indirection process. For example, if we have an array like:
dvander@1472	2641	* [a][b][c][d][], and given (A,B,C), we want to find the size of
dvander@1472	2642	* the last dimension [A][B][C][i], we must do:
dvander@1472	2643	*
dvander@1472	2644	* list[A(bcd) + B(cd) + C(d) + i]
dvander@1472	2645	*
dvander@1472	2646	* Generalizing this algorithm in the indirection process is expensive,
dvander@1472	2647	* so we lessen the need for nested loops by pre-computing the parts:
dvander@1472	2648	* (bcd), (c*d), and (d).
dvander@1472	2649	*
dvander@1472	2650	* In other words, finding the offset to dimension N at index I is
dvander@1472	2651	* I * (S[N+1] * S[N+2] ... S[N+n-1]) where S[] is the size of dimension
dvander@1472	2652	* function, and n is the index of the last dimension.
dvander@1472	2653	*/
dvander@1472	2654	for (i = 0; i < numdim - 1; i++)
dvander@1472	2655	{
dvander@1472	2656	int j;
dvander@1472	2657
dvander@1472	2658	dim_offset_precalc[i] = 1;
dvander@1472	2659	for (j = i + 1; j < numdim - 1; j++)
dvander@1472	2660	{
dvander@1472	2661	dim_offset_precalc[i] *= dim[j];
dvander@1472	2662	}
dvander@1472	2663	}
dvander@1472	2664
dvander@1472	2665	ar.dim_offs_precalc = dim_offset_precalc;
dvander@1472	2666	ar.lastdim_list = dyn_list;
dvander@1472	2667	} else {
dvander@1472	2668	ar.dim_offs_precalc = NULL;
dvander@1472	2669	ar.lastdim_list = NULL;
dvander@1472	2670	}
dvander@1472	2671
dvander@1472	2672	ar.base = &litq[startlit];
dvander@1472	2673	ar.data_offs = &tbl_size;
dvander@1472	2674	ar.dim_list = dim;
dvander@1472	2675	ar.dim_count = numdim;
dvander@1472	2676	ar.cur_dims = cur_dims;
dvander@1472	2677
dvander@1472	2678	gen_indirection_vecs(&ar, 0, 0);
dvander@1472	2679
dvander@1472	2680	free(dyn_list);
dvander@27	2681	}
dvander@27	2682
dvander@27	2683	/* initials
dvander@27	2684	*
dvander@27	2685	* Initialize global objects and local arrays.
dvander@27	2686	* size==array cells (count), if 0 on input, the routine counts the number of elements
dvander@27	2687	* tag==required tagname id (not the returned tag)
dvander@27	2688	*
dvander@27	2689	* Global references: litidx (altered)
dvander@27	2690	*/
dvander@1044	2691	static void initials2(int ident,int tag,cell *size,int dim[],int numdim,
dvander@1045	2692	constvalue *enumroot, int eq_match_override, int curlit_override)
dvander@27	2693	{
dvander@27	2694	int ctag;
dvander@27	2695	cell tablesize;
dvander@1045	2696	int curlit=(curlit_override == -1) ? litidx : curlit_override;
dvander@27	2697	int err=0;
dvander@27	2698
dvander@1044	2699	if (eq_match_override == -1) {
dvander@1044	2700	eq_match_override = matchtoken('=');
dvander@1044	2701	}
dvander@1044	2702
dvander@1044	2703	if (!eq_match_override) {
dvander@27	2704	assert(ident!=iARRAY \|\| numdim>0);
dvander@27	2705	if (ident==iARRAY && dim[numdim-1]==0) {
dvander@27	2706	/* declared as "myvar[];" which is senseless (note: this does make
dvander@27	2707	* sense in the case of a iREFARRAY, which is a function parameter)
dvander@27	2708	*/
dvander@27	2709	error(9); /* array has zero length -> invalid size */
dvander@27	2710	} /* if */
dvander@27	2711	if (ident==iARRAY) {
dvander@27	2712	assert(numdim>0 && numdim<=sDIMEN_MAX);
dvander@27	2713	*size=calc_arraysize(dim,numdim,0);
dvander@27	2714	if (*size==(cell)CELL_MAX) {
dvander@27	2715	error(9); /* array is too big -> invalid size */
dvander@27	2716	return;
dvander@27	2717	} /* if */
dvander@27	2718	/* first reserve space for the indirection vectors of the array, then
dvander@27	2719	* adjust it to contain the proper values
dvander@27	2720	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2721	*/
dvander@27	2722	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2723	litadd(0);
dvander@27	2724	if (dim[numdim-1]!=0) /* error 9 has already been given */
dvander@27	2725	adjust_indirectiontables(dim,numdim,0,0,curlit,NULL,NULL);
dvander@27	2726	} /* if */
dvander@27	2727	return;
dvander@27	2728	} /* if */
dvander@27	2729
dvander@27	2730	if (ident==iVARIABLE) {
dvander@27	2731	assert(*size==1);
dvander@27	2732	init(ident,&ctag,NULL);
dvander@27	2733	if (!matchtag(tag,ctag,TRUE))
ds@844	2734	{
ds@844	2735	if (tag & FUNCTAG)
ds@844	2736	error(100); /* error - function prototypes do not match */
ds@844	2737	else
ds@844	2738	error(213); /* warning - tag mismatch */
ds@844	2739	}
dvander@27	2740	} else {
dvander@27	2741	assert(numdim>0);
dvander@27	2742	if (numdim==1) {
dvander@27	2743	*size=initvector(ident,tag,dim[0],FALSE,enumroot,NULL);
dvander@27	2744	} else {
dvander@27	2745	int errorfound=FALSE;
dvander@27	2746	int counteddim[sDIMEN_MAX];
dvander@27	2747	int idx;
dvander@27	2748	constvalue lastdim={NULL,"",0,0}; /* sizes of the final dimension */
dvander@27	2749	int skipdim=0;
dvander@27	2750
dvander@27	2751	if (dim[numdim-1]!=0)
dvander@27	2752	size=calc_arraysize(dim,numdim,0); / calc. full size, if known */
dvander@27	2753	/* already reserve space for the indirection tables (for an array with
dvander@27	2754	* known dimensions)
dvander@27	2755	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2756	*/
dvander@27	2757	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2758	litadd(0);
dvander@27	2759	/* now initialize the sub-arrays */
dvander@27	2760	memset(counteddim,0,sizeof counteddim);
dvander@27	2761	initarray(ident,tag,dim,numdim,0,curlit,counteddim,&lastdim,enumroot,&errorfound);
ds@563	2762	/* check the specified array dimensions with the initializer counts */
dvander@27	2763	for (idx=0; idx<numdim-1; idx++) {
dvander@27	2764	if (dim[idx]==0) {
dvander@27	2765	dim[idx]=counteddim[idx];
dvander@27	2766	} else if (counteddim[idx]<dim[idx]) {
dvander@27	2767	error(52); /* array is not fully initialized */
dvander@27	2768	err++;
dvander@27	2769	} else if (counteddim[idx]>dim[idx]) {
dvander@27	2770	error(18); /* initialization data exceeds declared size */
dvander@27	2771	err++;
dvander@27	2772	} /* if */
dvander@27	2773	} /* for */
faluco@62	2774	if (numdim>1 && dim[numdim-1]==0) {
faluco@62	2775	/* also look whether, by any chance, all "counted" final dimensions are
faluco@62	2776	* the same value; if so, we can store this
faluco@62	2777	*/
faluco@62	2778	constvalue *ld=lastdim.next;
faluco@62	2779	int d,match;
faluco@62	2780	for (d=0; d<dim[numdim-2]; d++) {
faluco@62	2781	assert(ld!=NULL);
faluco@62	2782	assert(strtol(ld->name,NULL,16)==d);
faluco@62	2783	if (d==0)
faluco@62	2784	match=ld->value;
faluco@62	2785	else if (match!=ld->value)
faluco@62	2786	break;
faluco@62	2787	ld=ld->next;
faluco@62	2788	} /* for */
faluco@62	2789	if (d==dim[numdim-2])
faluco@62	2790	dim[numdim-1]=match;
faluco@62	2791	} /* if */
dvander@27	2792	/* after all arrays have been initalized, we know the (major) dimensions
dvander@27	2793	* of the array and we can properly adjust the indirection vectors
dvander@27	2794	*/
dvander@27	2795	if (err==0)
dvander@27	2796	adjust_indirectiontables(dim,numdim,0,0,curlit,&lastdim,&skipdim);
dvander@27	2797	delete_consttable(&lastdim); /* clear list of minor dimension sizes */
dvander@27	2798	} /* if */
dvander@27	2799	} /* if */
dvander@27	2800
dvander@27	2801	if (*size==0)
dvander@27	2802	size=litidx-curlit; / number of elements defined */
dvander@27	2803	}
dvander@27	2804
dvander@1044	2805	static void initials(int ident,int tag,cell *size,int dim[],int numdim,
dvander@1044	2806	constvalue *enumroot)
dvander@1044	2807	{
dvander@1045	2808	initials2(ident, tag, size, dim, numdim, enumroot, -1, -1);
dvander@1044	2809	}
dvander@1044	2810
dvander@27	2811	static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dvander@27	2812	int startlit,int counteddim[],constvalue *lastdim,
dvander@27	2813	constvalue enumroot,int errorfound)
dvander@27	2814	{
dvander@27	2815	cell dsize,totalsize;
dvander@27	2816	int idx,abortparse;
dvander@27	2817
dvander@27	2818	assert(cur>=0 && cur<numdim);
dvander@27	2819	assert(startlit>=0);
dvander@27	2820	assert(cur+2<=numdim);/* there must be 2 dimensions or more to do */
dvander@27	2821	assert(errorfound!=NULL && *errorfound==FALSE);
dvander@27	2822	totalsize=0;
dvander@27	2823	needtoken('{');
dvander@27	2824	for (idx=0,abortparse=FALSE; !abortparse; idx++) {
dvander@1976	2825
dvander@27	2826	/* In case the major dimension is zero, we need to store the offset
dvander@27	2827	* to the newly detected sub-array into the indirection table; i.e.
dvander@27	2828	* this table needs to be expanded and updated.
dvander@27	2829	* In the current design, the indirection vectors for a multi-dimensional
ds@563	2830	* array are adjusted after parsing all initializers. Hence, it is only
dvander@27	2831	* necessary at this point to reserve space for an extra cell in the
dvander@27	2832	* indirection vector.
dvander@27	2833	*/
dvander@27	2834	if (dim[cur]==0) {
dvander@27	2835	litinsert(0,startlit);
dvander@27	2836	} else if (idx>=dim[cur]) {
dvander@27	2837	error(18); /* initialization data exceeds array size */
dvander@27	2838	break;
dvander@27	2839	} /* if */
dvander@27	2840	if (cur+2<numdim) {
dvander@27	2841	dsize=initarray(ident,tag,dim,numdim,cur+1,startlit,counteddim,
dvander@27	2842	lastdim,enumroot,errorfound);
dvander@27	2843	} else {
dvander@27	2844	dsize=initvector(ident,tag,dim[cur+1],TRUE,enumroot,errorfound);
dvander@27	2845	/* The final dimension may be variable length. We need to keep the
dvander@27	2846	* lengths of the final dimensions in order to set the indirection
dvander@27	2847	* vectors for the next-to-last dimension.
dvander@27	2848	*/
dvander@27	2849	append_constval(lastdim,itoh(idx),dsize,0);
dvander@27	2850	} /* if */
dvander@27	2851	totalsize+=dsize;
dvander@27	2852	if (*errorfound \|\| !matchtoken(','))
dvander@27	2853	abortparse=TRUE;
dvander@27	2854	} /* for */
dvander@27	2855	needtoken('}');
dvander@27	2856	assert(counteddim!=NULL);
dvander@27	2857	if (counteddim[cur]>0) {
dvander@27	2858	if (idx<counteddim[cur])
dvander@27	2859	error(52); /* array is not fully initialized */
dvander@27	2860	else if (idx>counteddim[cur])
dvander@27	2861	error(18); /* initialization data exceeds declared size */
dvander@27	2862	} /* if */
dvander@27	2863	counteddim[cur]=idx;
dvander@27	2864
dvander@27	2865	return totalsize+dim[cur]; /* size of sub-arrays + indirection vector */
dvander@27	2866	}
dvander@27	2867
dvander@27	2868	/* initvector
dvander@27	2869	* Initialize a single dimensional array
dvander@27	2870	*/
dvander@27	2871	static cell initvector(int ident,int tag,cell size,int fillzero,
dvander@27	2872	constvalue enumroot,int errorfound)
dvander@27	2873	{
dvander@27	2874	cell prev1=0,prev2=0;
faluco@202	2875	int ellips=FALSE;
dvander@27	2876	int curlit=litidx;
dvander@27	2877	int rtag,ctag;
dvander@27	2878
dvander@27	2879	assert(ident==iARRAY \|\| ident==iREFARRAY);
faluco@202	2880	if (matchtoken('{')) {
dvander@27	2881	constvalue *enumfield=(enumroot!=NULL) ? enumroot->next : NULL;
dvander@27	2882	do {
dvander@27	2883	int fieldlit=litidx;
dvander@27	2884	int matchbrace,i;
dvander@27	2885	if (matchtoken('}')) { /* to allow for trailing ',' after the initialization */
dvander@27	2886	lexpush();
dvander@27	2887	break;
dvander@27	2888	} /* if */
dvander@27	2889	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2890	break;
dvander@27	2891	/* for enumeration fields, allow another level of braces ("{...}") */
dvander@27	2892	matchbrace=0; /* preset */
dvander@27	2893	ellips=0;
dvander@27	2894	if (enumfield!=NULL)
dvander@27	2895	matchbrace=matchtoken('{');
dvander@27	2896	for ( ;; ) {
dvander@27	2897	prev2=prev1;
dvander@27	2898	prev1=init(ident,&ctag,errorfound);
dvander@27	2899	if (!matchbrace)
dvander@27	2900	break;
dvander@27	2901	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2902	break;
dvander@27	2903	if (!matchtoken(',')) {
dvander@27	2904	needtoken('}');
dvander@27	2905	break;
dvander@27	2906	} /* for */
dvander@27	2907	} /* for */
dvander@27	2908	/* if this array is based on an enumeration, fill the "field" up with
dvander@27	2909	* zeros, and toggle the tag
dvander@27	2910	*/
dvander@27	2911	if (enumroot!=NULL && enumfield==NULL)
ds@563	2912	error(227); /* more initializers than enum fields */
dvander@27	2913	rtag=tag; /* preset, may be overridden by enum field tag */
dvander@27	2914	if (enumfield!=NULL) {
dvander@27	2915	cell step;
dvander@27	2916	int cmptag=enumfield->index;
dvander@27	2917	symbol *symfield=findconst(enumfield->name,&cmptag);
dvander@27	2918	if (cmptag>1)
dvander@27	2919	error(91,enumfield->name); /* ambiguous constant, needs tag override */
dvander@27	2920	assert(symfield!=NULL);
dvander@27	2921	assert(fieldlit<litidx);
dvander@27	2922	if (litidx-fieldlit>symfield->dim.array.length)
ds@563	2923	error(228); /* length of initializer exceeds size of the enum field */
dvander@27	2924	if (ellips) {
dvander@27	2925	step=prev1-prev2;
dvander@27	2926	} else {
dvander@27	2927	step=0;
dvander@27	2928	prev1=0;
dvander@27	2929	} /* if */
dvander@27	2930	for (i=litidx-fieldlit; i<symfield->dim.array.length; i++) {
dvander@27	2931	prev1+=step;
dvander@27	2932	litadd(prev1);
dvander@27	2933	} /* for */
dvander@27	2934	rtag=symfield->x.tags.index; /* set the expected tag to the index tag */
dvander@27	2935	enumfield=enumfield->next;
dvander@27	2936	} /* if */
dvander@27	2937	if (!matchtag(rtag,ctag,TRUE))
ds@844	2938	{
ds@844	2939	if (rtag & FUNCTAG)
ds@844	2940	error(100); /* error - function prototypes do not match */
ds@844	2941	else
ds@844	2942	error(213); /* warning - tag mismatch */
ds@844	2943	}
dvander@27	2944	} while (matchtoken(',')); /* do */
dvander@27	2945	needtoken('}');
dvander@27	2946	} else {
dvander@27	2947	init(ident,&ctag,errorfound);
dvander@27	2948	if (!matchtag(tag,ctag,TRUE))
dvander@27	2949	error(213); /* tagname mismatch */
dvander@27	2950	} /* if */
dvander@27	2951	/* fill up the literal queue with a series */
dvander@27	2952	if (ellips) {
dvander@27	2953	cell step=((litidx-curlit)==1) ? (cell)0 : prev1-prev2;
dvander@27	2954	if (size==0 \|\| (litidx-curlit)==0)
dvander@27	2955	error(41); /* invalid ellipsis, array size unknown */
dvander@27	2956	else if ((litidx-curlit)==(int)size)
dvander@1965	2957	error(18); /* initialization data exceeds declared size */
dvander@27	2958	while ((litidx-curlit)<(int)size) {
dvander@27	2959	prev1+=step;
dvander@27	2960	litadd(prev1);
dvander@27	2961	} /* while */
dvander@27	2962	} /* if */
dvander@27	2963	if (fillzero && size>0) {
dvander@27	2964	while ((litidx-curlit)<(int)size)
dvander@27	2965	litadd(0);
dvander@27	2966	} /* if */
dvander@27	2967	if (size==0) {
dvander@27	2968	size=litidx-curlit; /* number of elements defined */
dvander@27	2969	} else if (litidx-curlit>(int)size) { /* e.g. "myvar[3]={1,2,3,4};" */
dvander@1965	2970	error(18); /* initialization data exceeds declared size */
dvander@27	2971	litidx=(int)size+curlit; /* avoid overflow in memory moves */
dvander@27	2972	} /* if */
dvander@27	2973	return size;
dvander@27	2974	}
dvander@27	2975
dvander@27	2976	/* init
dvander@27	2977	*
dvander@27	2978	* Evaluate one initializer.
dvander@27	2979	*/
dvander@27	2980	static cell init(int ident,int tag,int errorfound)
dvander@27	2981	{
dvander@27	2982	cell i = 0;
dvander@27	2983
dvander@27	2984	if (matchtoken(tSTRING)){
dvander@27	2985	/* lex() automatically stores strings in the literal table (and
dvander@27	2986	* increases "litidx") */
dvander@27	2987	if (ident==iVARIABLE) {
dvander@27	2988	error(6); /* must be assigned to an array */
dvander@27	2989	litidx=1; /* reset literal queue */
dvander@27	2990	} /* if */
dvander@151	2991	*tag=pc_tag_string;
dvander@27	2992	} else if (constexpr(&i,tag,NULL)){
dvander@27	2993	litadd(i); /* store expression result in literal table */
dvander@27	2994	} else {
dvander@27	2995	if (errorfound!=NULL)
dvander@27	2996	*errorfound=TRUE;
dvander@27	2997	} /* if */
dvander@27	2998	return i;
dvander@27	2999	}
dvander@27	3000
dvander@27	3001	/* needsub
dvander@27	3002	*
dvander@27	3003	* Get required array size
dvander@27	3004	*/
dvander@27	3005	static cell needsub(int tag,constvalue *enumroot)
dvander@27	3006	{
dvander@27	3007	cell val;
dvander@27	3008	symbol *sym;
dvander@27	3009
dvander@27	3010	assert(tag!=NULL);
dvander@27	3011	*tag=0;
dvander@27	3012	if (enumroot!=NULL)
dvander@27	3013	enumroot=NULL; / preset */
dvander@27	3014	if (matchtoken(']')) /* we have already seen "[" */
dvander@27	3015	return 0; /* zero size (like "char msg[]") */
dvander@27	3016
dvander@27	3017	constexpr(&val,tag,&sym); /* get value (must be constant expression) */
dvander@27	3018	if (val<0) {
dvander@27	3019	error(9); /* negative array size is invalid; assumed zero */
dvander@27	3020	val=0;
dvander@27	3021	} /* if */
dvander@27	3022	needtoken(']');
dvander@27	3023
dvander@27	3024	if (enumroot!=NULL) {
dvander@27	3025	/* get the field list for an enumeration */
dvander@27	3026	assert(enumroot==NULL);/ should have been preset */
dvander@27	3027	assert(sym==NULL \|\| sym->ident==iCONSTEXPR);
dvander@27	3028	if (sym!=NULL && (sym->usage & uENUMROOT)==uENUMROOT) {
dvander@27	3029	assert(sym->dim.enumlist!=NULL);
dvander@27	3030	*enumroot=sym->dim.enumlist;
dvander@27	3031	} /* if */
dvander@27	3032	} /* if */
dvander@27	3033
dvander@27	3034	return val; /* return array size */
dvander@27	3035	}
dvander@27	3036
dvander@27	3037	/* decl_const - declare a single constant
dvander@27	3038	*
dvander@27	3039	*/
dvander@27	3040	static void decl_const(int vclass)
dvander@27	3041	{
dvander@27	3042	char constname[sNAMEMAX+1];
dvander@27	3043	cell val;
dvander@27	3044	char *str;
dvander@27	3045	int tag,exprtag;
dvander@27	3046	int symbolline;
dvander@27	3047	symbol *sym;
dvander@27	3048
faluco@62	3049	insert_docstring_separator(); /* see comment in newfunc() */
faluco@62	3050	do {
faluco@62	3051	tag=pc_addtag(NULL);
faluco@62	3052	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
faluco@62	3053	error(20,str); /* invalid symbol name */
faluco@62	3054	symbolline=fline; /* save line where symbol was found */
faluco@62	3055	strcpy(constname,str); /* save symbol name */
faluco@62	3056	needtoken('=');
faluco@62	3057	constexpr(&val,&exprtag,NULL); /* get value */
faluco@62	3058	/* add_constant() checks for duplicate definitions */
faluco@62	3059	if (!matchtag(tag,exprtag,FALSE)) {
faluco@62	3060	/* temporarily reset the line number to where the symbol was defined */
faluco@62	3061	int orgfline=fline;
faluco@62	3062	fline=symbolline;
faluco@62	3063	error(213); /* tagname mismatch */
faluco@62	3064	fline=orgfline;
faluco@62	3065	} /* if */
faluco@62	3066	sym=add_constant(constname,val,vclass,tag);
faluco@62	3067	if (sym!=NULL)
faluco@62	3068	sc_attachdocumentation(sym);/* attach any documenation to the constant */
faluco@62	3069	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	3070	needtoken(tTERM);
dvander@27	3071	}
dvander@27	3072
dvander@167	3073	/*
dvander@167	3074	* declstruct - declare a struct type
dvander@167	3075	*/
dvander@167	3076	static void declstruct(void)
dvander@167	3077	{
dvander@167	3078	cell val;
dvander@167	3079	char *str;
dvander@167	3080	int tok;
dvander@167	3081	pstruct_t *pstruct;
dvander@167	3082	int size;
dvander@167	3083
dvander@167	3084	/* get the explicit tag (required!) */
dvander@167	3085	tok = lex(&val,&str);
dvander@167	3086	if (tok != tSYMBOL)
dvander@167	3087	{
dvander@167	3088	error(93);
dvander@167	3089	}
dvander@167	3090
dvander@167	3091	if (pstructs_find(str) != NULL)
dvander@167	3092	{
ds@841	3093	error(98);
dvander@167	3094	}
dvander@167	3095
dvander@167	3096	pstruct = pstructs_add(str);
dvander@167	3097
dvander@167	3098	needtoken('{');
dvander@167	3099	do
dvander@167	3100	{
dvander@167	3101	structarg_t arg;
dvander@167	3102	if (matchtoken('}'))
dvander@167	3103	{
dvander@167	3104	/* Quick exit */
dvander@167	3105	lexpush();
dvander@167	3106	break;
dvander@167	3107	}
dvander@167	3108	memset(&arg, 0, sizeof(structarg_t));
dvander@167	3109	tok = lex(&val,&str);
dvander@167	3110	if (tok == tCONST)
dvander@167	3111	{
dvander@167	3112	arg.fconst = 1;
dvander@167	3113	tok = lex(&val,&str);
dvander@167	3114	}
dvander@167	3115	arg.ident = 0;
dvander@167	3116	if (tok == '&')
dvander@167	3117	{
dvander@167	3118	arg.ident = iREFERENCE;
dvander@167	3119	tok = lex(&val,&str);
dvander@167	3120	}
dvander@167	3121	if (tok == tLABEL)
dvander@167	3122	{
dvander@167	3123	arg.tag = pc_addtag(str);
dvander@167	3124	tok = lex(&val,&str);
dvander@167	3125	}
dvander@167	3126	if (tok != tSYMBOL)
dvander@167	3127	{
dvander@167	3128	error(1, "-identifier-", str);
dvander@167	3129	continue;
dvander@167	3130	}
dvander@167	3131	strcpy(arg.name, str);
dvander@167	3132	if (matchtoken('['))
dvander@167	3133	{
dvander@167	3134	if (arg.ident == iREFERENCE)
dvander@167	3135	{
dvander@167	3136	error(67, arg.name);
dvander@167	3137	}
dvander@167	3138	arg.ident = iARRAY;
dvander@167	3139	do
dvander@167	3140	{
dvander@167	3141	constvalue *enumroot;
dvander@167	3142	int ignore_tag;
dvander@167	3143	if (arg.dimcount == sDIMEN_MAX)
dvander@167	3144	{
dvander@167	3145	error(53);
dvander@167	3146	break;
dvander@167	3147	}
dvander@167	3148	size = needsub(&ignore_tag, &enumroot);
dvander@167	3149	arg.dims[arg.dimcount++] = size;
dvander@167	3150	} while (matchtoken('['));
dvander@167	3151	/* Handle strings */
dvander@167	3152	if (arg.tag == pc_tag_string && arg.dims[arg.dimcount-1])
dvander@167	3153	{
dvander@167	3154	arg.dims[arg.dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@167	3155	}
dvander@167	3156	if (arg.dimcount == 1 && !arg.dims[arg.dimcount-1])
dvander@167	3157	{
dvander@167	3158	arg.ident = iREFARRAY;
dvander@167	3159	}
dvander@167	3160	} else if (!arg.ident) {
dvander@167	3161	arg.ident = iVARIABLE;
dvander@167	3162	}
dvander@167	3163	if (pstructs_addarg(pstruct, &arg) == NULL)
dvander@167	3164	{
ds@841	3165	error(99, arg.name, pstruct->name);
dvander@167	3166	}
dvander@167	3167	} while (matchtoken(','));
dvander@167	3168	needtoken('}');
dvander@167	3169	matchtoken(';'); /* eat up optional semicolon */
dvander@167	3170	}
dvander@167	3171
dvander@167	3172
dvander@167	3173	/**
dvander@167	3174	* dofuncenum - declare function enumerations
dvander@132	3175	*/
dvander@338	3176	static void dofuncenum(int listmode)
dvander@132	3177	{
dvander@132	3178	cell val;
ds@425	3179	char *str;
ds@425	3180	// char *ptr;
dvander@132	3181	char tagname[sNAMEMAX+1];
dvander@132	3182	constvalue *cur;
dvander@132	3183	funcenum_t *fenum = NULL;
dvander@132	3184	int i;
dvander@2317	3185	int newStyleTag = 0;
dvander@2317	3186	int isNewStyle = 0;
dvander@132	3187
dvander@132	3188	/* get the explicit tag (required!) */
dvander@132	3189	int l = lex(&val,&str);
dvander@132	3190	if (l != tSYMBOL)
dvander@132	3191	{
dvander@2317	3192	if (listmode == FALSE && l == tPUBLIC)
dvander@2317	3193	{
dvander@2317	3194	isNewStyle = 1;
dvander@2317	3195	newStyleTag = pc_addtag(NULL);
dvander@2317	3196	l = lex(&val, &str);
dvander@2317	3197	if (l != tSYMBOL)
dvander@2317	3198	{
dvander@2317	3199	error(93);
dvander@2317	3200	}
dvander@2317	3201	}
dvander@2317	3202	else
dvander@2317	3203	{
dvander@2317	3204	error(93);
dvander@2317	3205	}
dvander@132	3206	}
dvander@132	3207
dvander@132	3208	/* This tag can't already exist! */
dvander@132	3209	cur=tagname_tab.next;
dvander@132	3210	while (cur)
dvander@132	3211	{
dvander@132	3212	if (strcmp(cur->name, str) == 0)
dvander@132	3213	{
dvander@132	3214	/* Another bad one... */
dvander@132	3215	if (!(cur->value & FUNCTAG))
dvander@132	3216	{
faluco@138	3217	error(94);
dvander@132	3218	}
dvander@132	3219	break;
dvander@132	3220	}
dvander@132	3221	cur = cur->next;
dvander@132	3222	}
dvander@132	3223	strcpy(tagname, str);
dvander@132	3224
dvander@132	3225	fenum = funcenums_add(tagname);
dvander@132	3226
dvander@338	3227	if (listmode)
dvander@338	3228	{
dvander@338	3229	needtoken('{');
dvander@338	3230	}
dvander@132	3231	do
dvander@132	3232	{
dvander@132	3233	functag_t func;
dvander@338	3234	if (listmode && matchtoken('}'))
dvander@132	3235	{
dvander@132	3236	/* Quick exit */
dvander@132	3237	lexpush();
dvander@132	3238	break;
dvander@132	3239	}
dvander@132	3240	memset(&func, 0, sizeof(func));
dvander@2317	3241	if (!isNewStyle)
dvander@132	3242	{
dvander@2317	3243	func.ret_tag = pc_addtag(NULL); /* Get the return tag */
dvander@2317	3244	l = lex(&val, &str);
dvander@2317	3245	/* :TODO:
dvander@2317	3246	* Right now, there is a problem. We can't pass non-public function pointer addresses around,
dvander@2317	3247	* because the address isn't known until the final reparse. Unfortunately, you can write code
dvander@2317	3248	* before the address is known, because Pawn's compiler isn't truly multipass.
dvander@2317	3249	*
dvander@2317	3250	* When you call a function, there's no problem, because it does not write the address.
dvander@2317	3251	* The assembly looks like this:
dvander@2317	3252	* call MyFunction
dvander@2317	3253	* Then, only at assembly time (once all passes are done), does it know the address.
dvander@2317	3254	* I do not see any solution to this because there is no way I know to inject the function name
dvander@2317	3255	* rather than the constant value. And even if we could, we'd have to change the assembler recognize that.
dvander@2317	3256	*/
dvander@2317	3257	if (l == tPUBLIC) {
dvander@2317	3258	func.type = uPUBLIC;
dvander@2317	3259	} else {
dvander@2317	3260	error(1, "-public-", str);
dvander@2317	3261	}
dvander@2317	3262	}
dvander@2317	3263	else
dvander@2317	3264	{
dvander@2317	3265	func.ret_tag = newStyleTag;
dvander@132	3266	func.type = uPUBLIC;
dvander@132	3267	}
dvander@132	3268	needtoken('(');
dvander@132	3269	do
dvander@132	3270	{
dvander@132	3271	funcarg_t *arg = &(func.args[func.argcount]);
dvander@132	3272
dvander@132	3273	/* Quick exit */
dvander@132	3274	if (matchtoken(')'))
dvander@132	3275	{
dvander@132	3276	lexpush();
dvander@132	3277	break;
dvander@132	3278	}
dvander@132	3279	l = lex(&val, &str);
dvander@132	3280	if (l == '&')
dvander@132	3281	{
dvander@132	3282	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3283	{
dvander@132	3284	error(1, "-identifier-", "&");
dvander@132	3285	}
dvander@132	3286	arg->ident = iREFERENCE;
dvander@132	3287	} else if (l == tCONST) {
dvander@132	3288	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3289	{
dvander@132	3290	error(1, "-identifier-", "const");
dvander@132	3291	}
dvander@132	3292	arg->fconst=TRUE;
dvander@132	3293	} else if (l == tLABEL) {
dvander@132	3294	if (arg->tagcount > 0)
dvander@132	3295	{
dvander@132	3296	error(1, "-identifier-", "-tagname-");
dvander@132	3297	}
dvander@132	3298	arg->tags[arg->tagcount++] = pc_addtag(str);
dvander@132	3299	#if 0
dvander@132	3300	while (arg->tagcount < sTAGS_MAX)
dvander@132	3301	{
dvander@132	3302	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@132	3303	{
dvander@132	3304	break;
dvander@132	3305	}
dvander@132	3306	tokeninfo(&val, &ptr);
dvander@132	3307	arg->tags[arg->tagcount++] = pc_addtag(ptr);
dvander@132	3308	if (matchtoken('}'))
dvander@132	3309	{
dvander@132	3310	break;
dvander@132	3311	}
dvander@132	3312	needtoken(',');
dvander@132	3313	}
dvander@132	3314	needtoken(':');
dvander@132	3315	#endif
dvander@132	3316	l=tLABEL;
dvander@132	3317	} else if (l == tSYMBOL) {
dvander@132	3318	if (func.argcount >= sARGS_MAX)
dvander@132	3319	{
dvander@132	3320	error(45);
dvander@132	3321	}
dvander@132	3322	if (str[0] == PUBLIC_CHAR)
dvander@132	3323	{
dvander@132	3324	error(56, str);
dvander@132	3325	}
dvander@132	3326	if (matchtoken('['))
dvander@132	3327	{
dvander@151	3328	cell size;
dvander@132	3329	if (arg->ident == iREFERENCE)
dvander@132	3330	{
dvander@132	3331	error(67, str);
dvander@132	3332	}
dvander@132	3333	do
dvander@132	3334	{
dvander@132	3335	constvalue *enumroot;
dvander@132	3336	int ignore_tag;
dvander@132	3337	if (arg->dimcount == sDIMEN_MAX)
dvander@132	3338	{
dvander@132	3339	error(53);
dvander@132	3340	break;
dvander@132	3341	}
dvander@132	3342	size = needsub(&ignore_tag, &enumroot);
dvander@132	3343	arg->dims[arg->dimcount] = size;
dvander@132	3344	arg->dimcount += 1;
dvander@132	3345	} while (matchtoken('['));
dvander@151	3346	/* Handle strings */
dvander@167	3347	if ((arg->tagcount == 1 && arg->tags[0] == pc_tag_string)
dvander@167	3348	&& arg->dims[arg->dimcount-1])
dvander@151	3349	{
dvander@151	3350	arg->dims[arg->dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3351	}
dvander@132	3352	arg->ident=iREFARRAY;
dvander@132	3353	} else if (arg->ident == 0) {
dvander@132	3354	arg->ident = iVARIABLE;
dvander@132	3355	}
dvander@132	3356
dvander@132	3357	if (matchtoken('='))
dvander@132	3358	{
dvander@132	3359	needtoken('0');
dvander@132	3360	arg->ommittable = TRUE;
dvander@132	3361	func.ommittable = TRUE;
dvander@132	3362	} else if (func.ommittable) {
faluco@138	3363	error(95);
dvander@132	3364	}
dvander@132	3365	func.argcount++;
dvander@132	3366	} else if (l == tELLIPS) {
dvander@132	3367	if (arg->ident == iVARIABLE)
dvander@132	3368	{
dvander@132	3369	error(10);
dvander@132	3370	}
dvander@132	3371	arg->ident = iVARARGS;
dvander@132	3372	func.argcount++;
dvander@132	3373	} else {
dvander@132	3374	error(10);
dvander@132	3375	}
dvander@132	3376	} while (l == '&' \|\| l == tLABEL \|\| l == tCONST \|\| l != tELLIPS && matchtoken(','));
dvander@132	3377	needtoken(')');
dvander@132	3378	for (i=0; i<func.argcount; i++)
dvander@132	3379	{
dvander@132	3380	if (func.args[i].tagcount == 0)
dvander@132	3381	{
dvander@132	3382	func.args[i].tags[0] = 0;
dvander@132	3383	func.args[i].tagcount = 1;
dvander@132	3384	}
dvander@132	3385	}
dvander@132	3386	functags_add(fenum, &func);
dvander@338	3387	if (!listmode)
dvander@338	3388	{
dvander@338	3389	break;
dvander@338	3390	}
dvander@132	3391	} while (matchtoken(','));
dvander@338	3392	if (listmode)
dvander@338	3393	{
dvander@338	3394	needtoken('}');
dvander@338	3395	}
dvander@132	3396	matchtoken(';'); /* eat an optional semicolon. nom nom nom */
dvander@132	3397	errorset(sRESET, 0);
dvander@132	3398	}
dvander@132	3399
dvander@27	3400	/* decl_enum - declare enumerated constants
dvander@27	3401	*
dvander@27	3402	*/
dvander@27	3403	static void decl_enum(int vclass)
dvander@27	3404	{
dvander@27	3405	char enumname[sNAMEMAX+1],constname[sNAMEMAX+1];
dvander@27	3406	cell val,value,size;
dvander@27	3407	char *str;
dvander@27	3408	int tag,explicittag;
dvander@27	3409	cell increment,multiplier;
dvander@27	3410	constvalue *enumroot;
dvander@27	3411	symbol *enumsym;
dvander@27	3412
dvander@27	3413	/* get an explicit tag, if any (we need to remember whether an explicit
dvander@27	3414	* tag was passed, even if that explicit tag was "_:", so we cannot call
dvander@27	3415	* pc_addtag() here
dvander@27	3416	*/
dvander@27	3417	if (lex(&val,&str)==tLABEL) {
dvander@27	3418	tag=pc_addtag(str);
dvander@27	3419	explicittag=TRUE;
dvander@27	3420	} else {
dvander@27	3421	lexpush();
dvander@27	3422	tag=0;
dvander@27	3423	explicittag=FALSE;
dvander@27	3424	} /* if */
dvander@27	3425
dvander@27	3426	/* get optional enum name (also serves as a tag if no explicit tag was set) */
dvander@27	3427	if (lex(&val,&str)==tSYMBOL) { /* read in (new) token */
dvander@27	3428	strcpy(enumname,str); /* save enum name (last constant) */
dvander@27	3429	if (!explicittag)
dvander@27	3430	tag=pc_addtag(enumname);
dvander@27	3431	} else {
dvander@27	3432	lexpush(); /* analyze again */
dvander@27	3433	enumname[0]='\0';
dvander@27	3434	} /* if */
dvander@27	3435
dvander@27	3436	/* get increment and multiplier */
dvander@27	3437	increment=1;
dvander@27	3438	multiplier=1;
dvander@27	3439	if (matchtoken('(')) {
dvander@27	3440	if (matchtoken(taADD)) {
dvander@27	3441	constexpr(&increment,NULL,NULL);
dvander@27	3442	} else if (matchtoken(taMULT)) {
dvander@27	3443	constexpr(&multiplier,NULL,NULL);
dvander@27	3444	} else if (matchtoken(taSHL)) {
dvander@27	3445	constexpr(&val,NULL,NULL);
dvander@27	3446	while (val-->0)
dvander@27	3447	multiplier*=2;
dvander@27	3448	} /* if */
dvander@27	3449	needtoken(')');
dvander@27	3450	} /* if */
dvander@27	3451
dvander@27	3452	if (strlen(enumname)>0) {
dvander@27	3453	/* already create the root symbol, so the fields can have it as their "parent" */
dvander@27	3454	enumsym=add_constant(enumname,0,vclass,tag);
dvander@27	3455	if (enumsym!=NULL)
dvander@27	3456	enumsym->usage \|= uENUMROOT;
dvander@27	3457	/* start a new list for the element names */
dvander@27	3458	if ((enumroot=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	3459	error(123); /* insufficient memory (fatal error) */
dvander@27	3460	memset(enumroot,0,sizeof(constvalue));
dvander@27	3461	} else {
dvander@27	3462	enumsym=NULL;
dvander@27	3463	enumroot=NULL;
dvander@27	3464	} /* if */
dvander@27	3465
dvander@27	3466	needtoken('{');
dvander@27	3467	/* go through all constants */
dvander@27	3468	value=0; /* default starting value */
dvander@27	3469	do {
dvander@27	3470	int idxtag,fieldtag;
dvander@27	3471	symbol *sym;
dvander@27	3472	if (matchtoken('}')) { /* quick exit if '}' follows ',' */
dvander@27	3473	lexpush();
dvander@27	3474	break;
dvander@27	3475	} /* if */
dvander@27	3476	idxtag=pc_addtag(NULL); /* optional explicit item tag */
dvander@27	3477	if (needtoken(tSYMBOL)) { /* read in (new) token */
dvander@27	3478	tokeninfo(&val,&str); /* get the information */
dvander@27	3479	strcpy(constname,str); /* save symbol name */
dvander@27	3480	} else {
dvander@27	3481	constname[0]='\0';
dvander@27	3482	} /* if */
dvander@27	3483	size=increment; /* default increment of 'val' */
dvander@27	3484	fieldtag=0; /* default field tag */
dvander@27	3485	if (matchtoken('[')) {
dvander@27	3486	constexpr(&size,&fieldtag,NULL); /* get size */
dvander@27	3487	needtoken(']');
dvander@27	3488	} /* if */
dvander@151	3489	/* :TODO: do we need a size modifier here for pc_tag_string? */
dvander@27	3490	if (matchtoken('='))
dvander@27	3491	constexpr(&value,NULL,NULL); /* get value */
dvander@27	3492	/* add_constant() checks whether a variable (global or local) or
dvander@27	3493	* a constant with the same name already exists
dvander@27	3494	*/
dvander@27	3495	sym=add_constant(constname,value,vclass,tag);
dvander@27	3496	if (sym==NULL)
dvander@27	3497	continue; /* error message already given */
dvander@27	3498	/* set the item tag and the item size, for use in indexing arrays */
dvander@27	3499	sym->x.tags.index=idxtag;
dvander@27	3500	sym->x.tags.field=fieldtag;
dvander@27	3501	sym->dim.array.length=size;
dvander@27	3502	sym->dim.array.level=0;
dvander@286	3503	sym->dim.array.slength=0;
dvander@27	3504	sym->parent=enumsym;
dvander@27	3505	/* add the constant to a separate list as well */
dvander@27	3506	if (enumroot!=NULL) {
dvander@27	3507	sym->usage \|= uENUMFIELD;
dvander@27	3508	append_constval(enumroot,constname,value,tag);
dvander@27	3509	} /* if */
dvander@27	3510	if (multiplier==1)
dvander@27	3511	value+=size;
dvander@27	3512	else
dvander@27	3513	value=sizemultiplier;
dvander@27	3514	} while (matchtoken(','));
dvander@27	3515	needtoken('}'); /* terminates the constant list */
dvander@27	3516	matchtoken(';'); /* eat an optional ; */
dvander@27	3517
dvander@27	3518	/* set the enum name to the "next" value (typically the last value plus one) */
dvander@27	3519	if (enumsym!=NULL) {
dvander@27	3520	assert((enumsym->usage & uENUMROOT)!=0);
dvander@27	3521	enumsym->addr=value;
dvander@27	3522	/* assign the constant list */
dvander@27	3523	assert(enumroot!=NULL);
dvander@27	3524	enumsym->dim.enumlist=enumroot;
dvander@27	3525	sc_attachdocumentation(enumsym); /* attach any documenation to the enumeration */
dvander@27	3526	} /* if */
dvander@27	3527	}
dvander@27	3528
dvander@27	3529	static int getstates(const char *funcname)
dvander@27	3530	{
dvander@27	3531	char fsaname[sNAMEMAX+1],statename[sNAMEMAX+1];
dvander@27	3532	cell val;
dvander@27	3533	char *str;
dvander@27	3534	constvalue *automaton;
dvander@27	3535	constvalue *state;
dvander@27	3536	int fsa,islabel;
dvander@27	3537	int *list;
dvander@27	3538	int count,listsize,state_id;
dvander@27	3539
dvander@27	3540	if (!matchtoken('<'))
dvander@27	3541	return 0;
dvander@27	3542	if (matchtoken('>'))
dvander@27	3543	return -1; /* special construct: all other states (fall-back) */
dvander@27	3544
dvander@27	3545	count=0;
dvander@27	3546	listsize=0;
dvander@27	3547	list=NULL;
dvander@27	3548	fsa=-1;
dvander@27	3549
dvander@27	3550	do {
dvander@27	3551	if (!(islabel=matchtoken(tLABEL)) && !needtoken(tSYMBOL))
dvander@27	3552	break;
dvander@27	3553	tokeninfo(&val,&str);
dvander@27	3554	assert(strlen(str)<sizeof fsaname);
dvander@27	3555	strcpy(fsaname,str); /* assume this is the name of the automaton */
dvander@27	3556	if (islabel \|\| matchtoken(':')) {
dvander@27	3557	/* token is an automaton name, add the name and get a new token */
dvander@27	3558	if (!needtoken(tSYMBOL))
dvander@27	3559	break;
dvander@27	3560	tokeninfo(&val,&str);
dvander@27	3561	assert(strlen(str)<sizeof statename);
dvander@27	3562	strcpy(statename,str);
dvander@27	3563	} else {
dvander@27	3564	/* the token was the state name (part of an anynymous automaton) */
dvander@27	3565	assert(strlen(fsaname)<sizeof statename);
dvander@27	3566	strcpy(statename,fsaname);
dvander@27	3567	fsaname[0]='\0';
dvander@27	3568	} /* if */
dvander@27	3569	if (fsa<0 \|\| fsaname[0]!='\0') {
dvander@27	3570	automaton=automaton_add(fsaname);
dvander@27	3571	assert(automaton!=NULL);
dvander@27	3572	if (fsa>=0 && automaton->index!=fsa)
dvander@27	3573	error(83,funcname); /* multiple automatons for a single function/variable */
dvander@27	3574	fsa=automaton->index;
dvander@27	3575	} /* if */
dvander@27	3576	state=state_add(statename,fsa);
dvander@27	3577	/* add this state to the state combination list (it will be attached to the
dvander@27	3578	* automaton later) */
dvander@27	3579	state_buildlist(&list,&listsize,&count,(int)state->value);
dvander@27	3580	} while (matchtoken(','));
dvander@27	3581	needtoken('>');
dvander@27	3582
dvander@27	3583	if (count>0) {
dvander@27	3584	assert(automaton!=NULL);
dvander@27	3585	assert(fsa>=0);
dvander@27	3586	state_id=state_addlist(list,count,fsa);
dvander@27	3587	assert(state_id>0);
dvander@27	3588	} else {
dvander@27	3589	/* error is already given */
dvander@27	3590	state_id=0;
dvander@27	3591	} /* if */
dvander@27	3592	if (list!=NULL)
dvander@27	3593	free(list);
dvander@27	3594
dvander@27	3595	return state_id;
dvander@27	3596	}
dvander@27	3597
dvander@27	3598	static void attachstatelist(symbol *sym, int state_id)
dvander@27	3599	{
dvander@27	3600	assert(sym!=NULL);
dvander@27	3601	if ((sym->usage & uDEFINE)!=0 && (sym->states==NULL \|\| state_id==0))
dvander@27	3602	error(21,sym->name); /* function already defined, either without states or the current definition has no states */
dvander@27	3603
dvander@27	3604	if (state_id!=0) {
dvander@27	3605	/* add the state list id */
dvander@27	3606	constvalue *stateptr;
dvander@27	3607	if (sym->states==NULL) {
dvander@27	3608	if ((sym->states=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	3609	error(123); /* insufficient memory (fatal error) */
dvander@27	3610	memset(sym->states,0,sizeof(constvalue));
dvander@27	3611	} /* if */
dvander@27	3612	/* see whether the id already exists (add new state only if it does not
dvander@27	3613	* yet exist
dvander@27	3614	*/
dvander@27	3615	assert(sym->states!=NULL);
dvander@27	3616	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index!=state_id; stateptr=stateptr->next)
dvander@27	3617	/* nothing */;
dvander@27	3618	assert(state_id<=SHRT_MAX);
dvander@27	3619	if (stateptr==NULL)
dvander@27	3620	append_constval(sym->states,"",code_idx,(short)state_id);
dvander@27	3621	else if (stateptr->value==0)
dvander@27	3622	stateptr->value=code_idx;
dvander@27	3623	else
dvander@27	3624	error(84,sym->name);
dvander@27	3625	/* also check for another conflicting situation: a fallback function
dvander@27	3626	* without any states
dvander@27	3627	*/
dvander@27	3628	if (state_id==-1 && sc_status!=statFIRST) {
dvander@27	3629	/* in the second round, all states should have been accumulated */
dvander@27	3630	assert(sym->states!=NULL);
dvander@27	3631	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index==-1; stateptr=stateptr->next)
dvander@27	3632	/* nothing */;
dvander@27	3633	if (stateptr==NULL)
dvander@27	3634	error(85,sym->name); /* no states are defined for this function */
dvander@27	3635	} /* if */
dvander@27	3636	} /* if */
dvander@27	3637	}
dvander@27	3638
dvander@27	3639	/*
dvander@27	3640	* Finds a function in the global symbol table or creates a new entry.
dvander@27	3641	* It does some basic processing and error checking.
dvander@27	3642	*/
dvander@27	3643	SC_FUNC symbol fetchfunc(char name,int tag)
dvander@27	3644	{
dvander@27	3645	symbol *sym;
dvander@27	3646
dvander@27	3647	if ((sym=findglb(name,sGLOBAL))!=0) { /* already in symbol table? */
dvander@27	3648	if (sym->ident!=iFUNCTN) {
dvander@27	3649	error(21,name); /* yes, but not as a function */
dvander@27	3650	return NULL; /* make sure the old symbol is not damaged */
dvander@27	3651	} else if ((sym->usage & uNATIVE)!=0) {
dvander@27	3652	error(21,name); /* yes, and it is a native */
dvander@27	3653	} /* if */
dvander@27	3654	assert(sym->vclass==sGLOBAL);
dvander@27	3655	if ((sym->usage & uPROTOTYPED)!=0 && sym->tag!=tag)
dvander@27	3656	error(25); /* mismatch from earlier prototype */
dvander@27	3657	if ((sym->usage & uDEFINE)==0) {
dvander@27	3658	/* as long as the function stays undefined, update the address and the tag */
dvander@27	3659	if (sym->states==NULL)
dvander@27	3660	sym->addr=code_idx;
dvander@27	3661	sym->tag=tag;
dvander@27	3662	} /* if */
dvander@27	3663	} else {
dvander@27	3664	/* don't set the "uDEFINE" flag; it may be a prototype */
dvander@27	3665	sym=addsym(name,code_idx,iFUNCTN,sGLOBAL,tag,0);
dvander@27	3666	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	3667	/* assume no arguments */
dvander@27	3668	sym->dim.arglist=(arginfo)malloc(1sizeof(arginfo));
dvander@27	3669	sym->dim.arglist[0].ident=0;
dvander@27	3670	/* set library ID to NULL (only for native functions) */
dvander@27	3671	sym->x.lib=NULL;
dvander@27	3672	/* set the required stack size to zero (only for non-native functions) */
dvander@27	3673	sym->x.stacksize=1; /* 1 for PROC opcode */
dvander@27	3674	} /* if */
ds@52	3675	if (pc_deprecate!=NULL) {
dvander@27	3676	assert(sym!=NULL);
ds@52	3677	sym->flags\|=flgDEPRECATED;
dvander@27	3678	if (sc_status==statWRITE) {
dvander@27	3679	if (sym->documentation!=NULL) {
dvander@27	3680	free(sym->documentation);
dvander@27	3681	sym->documentation=NULL;
dvander@27	3682	} /* if */
ds@52	3683	sym->documentation=pc_deprecate;
dvander@27	3684	} else {
ds@52	3685	free(pc_deprecate);
dvander@27	3686	} /* if */
ds@52	3687	pc_deprecate=NULL;
dvander@27	3688	} /* if */
dvander@27	3689
dvander@27	3690	return sym;
dvander@27	3691	}
dvander@27	3692
dvander@27	3693	/* This routine adds symbolic information for each argument.
dvander@27	3694	*/
dvander@27	3695	static void define_args(void)
dvander@27	3696	{
dvander@27	3697	symbol *sym;
dvander@27	3698
dvander@27	3699	/* At this point, no local variables have been declared. All
dvander@27	3700	* local symbols are function arguments.
dvander@27	3701	*/
dvander@27	3702	sym=loctab.next;
dvander@27	3703	while (sym!=NULL) {
dvander@27	3704	assert(sym->ident!=iLABEL);
dvander@27	3705	assert(sym->vclass==sLOCAL);
dvander@27	3706	markexpr(sLDECL,sym->name,sym->addr); /* mark for better optimization */
dvander@27	3707	sym=sym->next;
dvander@27	3708	} /* while */
dvander@27	3709	}
dvander@27	3710
dvander@27	3711	static int operatorname(char *name)
dvander@27	3712	{
dvander@27	3713	int opertok;
dvander@27	3714	char *str;
dvander@27	3715	cell val;
dvander@27	3716
dvander@27	3717	assert(name!=NULL);
dvander@27	3718
dvander@27	3719	/* check the operator */
dvander@27	3720	opertok=lex(&val,&str);
dvander@27	3721	switch (opertok) {
dvander@27	3722	case '+':
dvander@27	3723	case '-':
dvander@27	3724	case '*':
dvander@27	3725	case '/':
dvander@27	3726	case '%':
dvander@27	3727	case '>':
dvander@27	3728	case '<':
dvander@27	3729	case '!':
dvander@27	3730	case '~':
dvander@27	3731	case '=':
dvander@27	3732	name[0]=(char)opertok;
dvander@27	3733	name[1]='\0';
dvander@27	3734	break;
dvander@27	3735	case tINC:
dvander@27	3736	strcpy(name,"++");
dvander@27	3737	break;
dvander@27	3738	case tDEC:
dvander@27	3739	strcpy(name,"--");
dvander@27	3740	break;
dvander@27	3741	case tlEQ:
dvander@27	3742	strcpy(name,"==");
dvander@27	3743	break;
dvander@27	3744	case tlNE:
dvander@27	3745	strcpy(name,"!=");
dvander@27	3746	break;
dvander@27	3747	case tlLE:
dvander@27	3748	strcpy(name,"<=");
dvander@27	3749	break;
dvander@27	3750	case tlGE:
dvander@27	3751	strcpy(name,">=");
dvander@27	3752	break;
dvander@27	3753	default:
dvander@27	3754	name[0]='\0';
dvander@27	3755	error(7); /* operator cannot be redefined (or bad operator name) */
dvander@27	3756	return 0;
dvander@27	3757	} /* switch */
dvander@27	3758
dvander@27	3759	return opertok;
dvander@27	3760	}
dvander@27	3761
dvander@27	3762	static int operatoradjust(int opertok,symbol sym,char opername,int resulttag)
dvander@27	3763	{
dvander@27	3764	int tags[2]={0,0};
dvander@27	3765	int count=0;
dvander@27	3766	arginfo *arg;
dvander@27	3767	char tmpname[sNAMEMAX+1];
dvander@27	3768	symbol *oldsym;
dvander@27	3769
dvander@27	3770	if (opertok==0)
dvander@27	3771	return TRUE;
dvander@27	3772
dvander@27	3773	assert(sym!=NULL && sym->ident==iFUNCTN && sym->dim.arglist!=NULL);
dvander@27	3774	/* count arguments and save (first two) tags */
dvander@27	3775	while (arg=&sym->dim.arglist[count], arg->ident!=0) {
dvander@27	3776	if (count<2) {
dvander@27	3777	if (arg->numtags>1)
dvander@27	3778	error(65,count+1); /* function argument may only have a single tag */
dvander@27	3779	else if (arg->numtags==1)
dvander@27	3780	tags[count]=arg->tags[0];
dvander@27	3781	} /* if */
dvander@27	3782	if (opertok=='~' && count==0) {
dvander@27	3783	if (arg->ident!=iREFARRAY)
dvander@27	3784	error(73,arg->name);/* must be an array argument */
dvander@27	3785	} else {
ds@841	3786	//if (arg->ident!=iVARIABLE)
ds@841	3787	//error(66,arg->name);/* must be non-reference argument */
dvander@27	3788	} /* if */
dvander@27	3789	if (arg->hasdefault)
dvander@27	3790	error(59,arg->name); /* arguments of an operator may not have a default value */
dvander@27	3791	count++;
dvander@27	3792	} /* while */
dvander@27	3793
dvander@27	3794	/* for '!', '++' and '--', count must be 1
dvander@27	3795	* for '-', count may be 1 or 2
dvander@27	3796	* for '=', count must be 1, and the resulttag is also important
dvander@27	3797	* for all other (binary) operators and the special '~' operator, count must be 2
dvander@27	3798	*/
dvander@27	3799	switch (opertok) {
dvander@27	3800	case '!':
dvander@27	3801	case '=':
dvander@27	3802	case tINC:
dvander@27	3803	case tDEC:
dvander@27	3804	if (count!=1)
dvander@27	3805	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3806	break;
dvander@27	3807	case '-':
dvander@27	3808	if (count!=1 && count!=2)
dvander@27	3809	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3810	break;
dvander@27	3811	default:
dvander@27	3812	if (count!=2)
dvander@27	3813	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3814	} /* switch */
dvander@27	3815
dvander@27	3816	if (tags[0]==0 && (opertok!='=' && tags[1]==0 \|\| opertok=='=' && resulttag==0))
dvander@27	3817	error(64); /* cannot change predefined operators */
dvander@27	3818
dvander@27	3819	/* change the operator name */
dvander@27	3820	assert(strlen(opername)>0);
dvander@27	3821	operator_symname(tmpname,opername,tags[0],tags[1],count,resulttag);
dvander@27	3822	if ((oldsym=findglb(tmpname,sGLOBAL))!=NULL) {
dvander@27	3823	int i;
dvander@27	3824	if ((oldsym->usage & uDEFINE)!=0) {
dvander@27	3825	char errname[2*sNAMEMAX+16];
dvander@27	3826	funcdisplayname(errname,tmpname);
dvander@27	3827	error(21,errname); /* symbol already defined */
dvander@27	3828	} /* if */
dvander@27	3829	sym->usage\|=oldsym->usage; /* copy flags from the previous definition */
dvander@27	3830	for (i=0; i<oldsym->numrefers; i++)
dvander@27	3831	if (oldsym->refer[i]!=NULL)
dvander@27	3832	refer_symbol(sym,oldsym->refer[i]);
dvander@27	3833	delete_symbol(&glbtab,oldsym);
dvander@27	3834	} /* if */
dvander@27	3835	strcpy(sym->name,tmpname);
dvander@27	3836	sym->hash=namehash(sym->name);/* calculate new hash */
dvander@27	3837
dvander@27	3838	/* operators should return a value, except the '~' operator */
dvander@27	3839	if (opertok!='~')
dvander@27	3840	sym->usage \|= uRETVALUE;
dvander@27	3841
dvander@27	3842	return TRUE;
dvander@27	3843	}
dvander@27	3844
dvander@27	3845	static int check_operatortag(int opertok,int resulttag,char *opername)
dvander@27	3846	{
dvander@27	3847	assert(opername!=NULL && strlen(opername)>0);
dvander@27	3848	switch (opertok) {
dvander@27	3849	case '!':
dvander@27	3850	case '<':
dvander@27	3851	case '>':
dvander@27	3852	case tlEQ:
dvander@27	3853	case tlNE:
dvander@27	3854	case tlLE:
dvander@27	3855	case tlGE:
dvander@27	3856	if (resulttag!=pc_addtag("bool")) {
dvander@27	3857	error(63,opername,"bool:"); /* operator X requires a "bool:" result tag */
dvander@27	3858	return FALSE;
dvander@27	3859	} /* if */
dvander@27	3860	break;
dvander@27	3861	case '~':
dvander@27	3862	if (resulttag!=0) {
dvander@27	3863	error(63,opername,"_:"); /* operator "~" requires a "_:" result tag */
dvander@27	3864	return FALSE;
dvander@27	3865	} /* if */
dvander@27	3866	break;
dvander@27	3867	} /* switch */
dvander@27	3868	return TRUE;
dvander@27	3869	}
dvander@27	3870
dvander@27	3871	static char tag2str(char dest,int tag)
dvander@27	3872	{
dvander@27	3873	tag &= TAGMASK;
dvander@27	3874	assert(tag>=0);
dvander@27	3875	sprintf(dest,"0%x",tag);
dvander@27	3876	return isdigit(dest[1]) ? &dest[1] : dest;
dvander@27	3877	}
dvander@27	3878
dvander@27	3879	SC_FUNC char operator_symname(char symname,char *opername,int tag1,int tag2,int numtags,int resulttag)
dvander@27	3880	{
dvander@27	3881	char tagstr1[10], tagstr2[10];
dvander@27	3882	int opertok;
dvander@27	3883
dvander@27	3884	assert(numtags>=1 && numtags<=2);
dvander@27	3885	opertok= (opername[1]=='\0') ? opername[0] : 0;
dvander@27	3886	if (opertok=='=')
dvander@27	3887	sprintf(symname,"%s%s%s",tag2str(tagstr1,resulttag),opername,tag2str(tagstr2,tag1));
dvander@27	3888	else if (numtags==1 \|\| opertok=='~')
dvander@27	3889	sprintf(symname,"%s%s",opername,tag2str(tagstr1,tag1));
dvander@27	3890	else
dvander@27	3891	sprintf(symname,"%s%s%s",tag2str(tagstr1,tag1),opername,tag2str(tagstr2,tag2));
dvander@27	3892	return symname;
dvander@27	3893	}
dvander@27	3894
dvander@27	3895	static int parse_funcname(char fname,int tag1,int tag2,char opname)
dvander@27	3896	{
dvander@27	3897	char ptr,name;
dvander@27	3898	int unary;
dvander@27	3899
dvander@27	3900	/* tags are only positive, so if the function name starts with a '-',
dvander@27	3901	* the operator is an unary '-' or '--' operator.
dvander@27	3902	*/
dvander@27	3903	if (*fname=='-') {
dvander@27	3904	*tag1=0;
dvander@27	3905	unary=TRUE;
dvander@27	3906	ptr=fname;
dvander@27	3907	} else {
dvander@27	3908	*tag1=(int)strtol(fname,&ptr,16);
dvander@27	3909	unary= ptr==fname; /* unary operator if it doesn't start with a tag name */
dvander@27	3910	} /* if */
dvander@27	3911	assert(!unary \|\| *tag1==0);
dvander@27	3912	assert(*ptr!='\0');
dvander@27	3913	for (name=opname; !isdigit(*ptr); )
dvander@27	3914	name++ = ptr++;
dvander@27	3915	*name='\0';
dvander@27	3916	*tag2=(int)strtol(ptr,NULL,16);
dvander@27	3917	return unary;
dvander@27	3918	}
dvander@27	3919
dvander@132	3920	constvalue *find_tag_byval(int tag)
dvander@27	3921	{
dvander@27	3922	constvalue *tagsym;
dvander@27	3923	tagsym=find_constval_byval(&tagname_tab,tag & ~PUBLICTAG);
dvander@27	3924	if (tagsym==NULL)
dvander@27	3925	tagsym=find_constval_byval(&tagname_tab,tag \| PUBLICTAG);
dvander@27	3926	return tagsym;
dvander@27	3927	}
dvander@27	3928
dvander@27	3929	SC_FUNC char funcdisplayname(char dest,char *funcname)
dvander@27	3930	{
dvander@27	3931	int tags[2];
dvander@27	3932	char opname[10];
dvander@27	3933	constvalue *tagsym[2];
dvander@27	3934	int unary;
dvander@27	3935
dvander@27	3936	if (isalpha(funcname) \|\| funcname=='_' \|\| funcname==PUBLIC_CHAR \|\| funcname=='\0') {
dvander@27	3937	if (dest!=funcname)
dvander@27	3938	strcpy(dest,funcname);
dvander@27	3939	return dest;
dvander@27	3940	} /* if */
dvander@27	3941
dvander@27	3942	unary=parse_funcname(funcname,&tags[0],&tags[1],opname);
dvander@27	3943	tagsym[1]=find_tag_byval(tags[1]);
dvander@27	3944	assert(tagsym[1]!=NULL);
dvander@27	3945	if (unary) {
dvander@27	3946	sprintf(dest,"operator%s(%s:)",opname,tagsym[1]->name);
dvander@27	3947	} else {
dvander@27	3948	tagsym[0]=find_tag_byval(tags[0]);
dvander@27	3949	assert(tagsym[0]!=NULL);
dvander@27	3950	/* special case: the assignment operator has the return value as the 2nd tag */
dvander@27	3951	if (opname[0]=='=' && opname[1]=='\0')
dvander@27	3952	sprintf(dest,"%s:operator%s(%s:)",tagsym[0]->name,opname,tagsym[1]->name);
dvander@27	3953	else
dvander@27	3954	sprintf(dest,"operator%s(%s:,%s:)",opname,tagsym[0]->name,tagsym[1]->name);
dvander@27	3955	} /* if */
dvander@27	3956	return dest;
dvander@27	3957	}
dvander@27	3958
dvander@27	3959	static void funcstub(int fnative)
dvander@27	3960	{
dvander@27	3961	int tok,tag,fpublic;
dvander@27	3962	char *str;
dvander@27	3963	cell val,size;
dvander@27	3964	char symbolname[sNAMEMAX+1];
dvander@27	3965	int idxtag[sDIMEN_MAX];
dvander@27	3966	int dim[sDIMEN_MAX];
dvander@27	3967	int numdim;
dvander@27	3968	symbol sym,sub;
dvander@27	3969	int opertok;
dvander@27	3970
dvander@27	3971	opertok=0;
dvander@27	3972	lastst=0;
dvander@27	3973	litidx=0; /* clear the literal pool */
dvander@27	3974	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	3975
dvander@27	3976	tag=pc_addtag(NULL); /* get the tag of the return value */
dvander@27	3977	numdim=0;
dvander@27	3978	while (matchtoken('[')) {
dvander@27	3979	/* the function returns an array, get this tag for the index and the array
dvander@27	3980	* dimensions
dvander@27	3981	*/
dvander@27	3982	if (numdim == sDIMEN_MAX) {
dvander@27	3983	error(53); /* exceeding maximum number of dimensions */
dvander@27	3984	return;
dvander@27	3985	} /* if */
dvander@27	3986	size=needsub(&idxtag[numdim],NULL); /* get size; size==0 for "var[]" */
dvander@27	3987	if (size==0)
dvander@27	3988	error(9); /* invalid array size */
dvander@27	3989	#if INT_MAX < LONG_MAX
dvander@27	3990	if (size > INT_MAX)
ds@841	3991	error(125); /* overflow, exceeding capacity */
dvander@27	3992	#endif
dvander@27	3993	dim[numdim++]=(int)size;
dvander@27	3994	} /* while */
dvander@27	3995
dvander@191	3996	if (tag == pc_tag_string && numdim && dim[numdim-1])
dvander@151	3997	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3998
dvander@27	3999	tok=lex(&val,&str);
dvander@27	4000	fpublic=(tok==tPUBLIC) \|\| (tok==tSYMBOL && str[0]==PUBLIC_CHAR);
dvander@27	4001	if (fnative) {
dvander@27	4002	if (fpublic \|\| tok==tSTOCK \|\| tok==tSTATIC \|\| tok==tSYMBOL && *str==PUBLIC_CHAR)
dvander@27	4003	error(42); /* invalid combination of class specifiers */
dvander@27	4004	} else {
dvander@27	4005	if (tok==tPUBLIC \|\| tok==tSTOCK \|\| tok==tSTATIC)
dvander@27	4006	tok=lex(&val,&str);
dvander@27	4007	} /* if */
dvander@27	4008
dvander@27	4009	if (tok==tOPERATOR) {
dvander@27	4010	opertok=operatorname(symbolname);
dvander@27	4011	if (opertok==0)
dvander@27	4012	return; /* error message already given */
dvander@27	4013	check_operatortag(opertok,tag,symbolname);
dvander@27	4014	} else {
dvander@27	4015	if (tok!=tSYMBOL && freading) {
dvander@27	4016	error(10); /* illegal function or declaration */
dvander@27	4017	return;
dvander@27	4018	} /* if */
dvander@27	4019	strcpy(symbolname,str);
dvander@27	4020	} /* if */
dvander@27	4021	needtoken('('); /* only functions may be native/forward */
dvander@27	4022
dvander@27	4023	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	4024	if (sym==NULL)
dvander@27	4025	return;
dvander@27	4026	if (fnative) {
dvander@27	4027	sym->usage=(char)(uNATIVE \| uRETVALUE \| uDEFINE \| (sym->usage & uPROTOTYPED));
dvander@27	4028	sym->x.lib=curlibrary;
dvander@27	4029	} else if (fpublic) {
dvander@27	4030	sym->usage\|=uPUBLIC;
dvander@27	4031	} /* if */
dvander@27	4032	sym->usage\|=uFORWARD;
dvander@27	4033
dvander@27	4034	declargs(sym,FALSE);
dvander@27	4035	/* "declargs()" found the ")" */
dvander@27	4036	sc_attachdocumentation(sym); /* attach any documenation to the function */
dvander@27	4037	if (!operatoradjust(opertok,sym,symbolname,tag))
dvander@27	4038	sym->usage &= ~uDEFINE;
dvander@27	4039
dvander@27	4040	if (getstates(symbolname)!=0) {
dvander@27	4041	if (fnative \|\| opertok!=0)
dvander@27	4042	error(82); /* native functions and operators may not have states */
dvander@27	4043	else
dvander@27	4044	error(231); /* ignoring state specifications on forward declarations */
dvander@27	4045	} /* if */
dvander@27	4046
dvander@27	4047	/* for a native operator, also need to specify an "exported" function name;
dvander@27	4048	* for a native function, this is optional
dvander@27	4049	*/
dvander@27	4050	if (fnative) {
dvander@27	4051	if (opertok!=0) {
dvander@27	4052	needtoken('=');
dvander@27	4053	lexpush(); /* push back, for matchtoken() to retrieve again */
dvander@27	4054	} /* if */
dvander@27	4055	if (matchtoken('=')) {
dvander@27	4056	/* allow number or symbol */
dvander@27	4057	if (matchtoken(tSYMBOL)) {
dvander@27	4058	tokeninfo(&val,&str);
dvander@27	4059	insert_alias(sym->name,str);
dvander@27	4060	} else {
dvander@27	4061	constexpr(&val,NULL,NULL);
dvander@27	4062	sym->addr=val;
dvander@27	4063	/* At the moment, I have assumed that this syntax is only valid if
dvander@27	4064	* val < 0. To properly mix "normal" native functions and indexed
dvander@27	4065	* native functions, one should use negative indices anyway.
dvander@27	4066	* Special code for a negative index in sym->addr exists in SC4.C
dvander@27	4067	* (ffcall()) and in SC6.C (the loops for counting the number of native
dvander@27	4068	* variables and for writing them).
dvander@27	4069	*/
dvander@27	4070	} /* if */
dvander@27	4071	} /* if */
dvander@27	4072	} /* if */
dvander@27	4073	needtoken(tTERM);
dvander@27	4074
dvander@27	4075	/* attach the array to the function symbol */
dvander@27	4076	if (numdim>0) {
dvander@27	4077	assert(sym!=NULL);
dvander@27	4078	sub=addvariable(symbolname,0,iARRAY,sGLOBAL,tag,dim,numdim,idxtag);
dvander@27	4079	sub->parent=sym;
dvander@27	4080	} /* if */
dvander@27	4081
dvander@27	4082	litidx=0; /* clear the literal pool */
dvander@27	4083	delete_symbols(&loctab,0,TRUE,TRUE);/* clear local variables queue */
dvander@27	4084	}
dvander@27	4085
dvander@27	4086	/* newfunc - begin a function
dvander@27	4087	*
dvander@27	4088	* This routine is called from "parse" and tries to make a function
dvander@27	4089	* out of the following text
dvander@27	4090	*
dvander@27	4091	* Global references: funcstatus,lastst,litidx
dvander@27	4092	* rettype (altered)
dvander@27	4093	* curfunc (altered)
dvander@27	4094	* declared (altered)
dvander@27	4095	* glb_declared (altered)
dvander@27	4096	* sc_alignnext (altered)
dvander@27	4097	*/
dvander@27	4098	static int newfunc(char *firstname,int firsttag,int fpublic,int fstatic,int stock)
dvander@27	4099	{
dvander@27	4100	symbol *sym;
dvander@27	4101	int argcnt,tok,tag,funcline;
dvander@27	4102	int opertok,opererror;
dvander@27	4103	char symbolname[sNAMEMAX+1];
dvander@27	4104	char *str;
dvander@27	4105	cell val,cidx,glbdecl;
dvander@27	4106	short filenum;
dvander@27	4107	int state_id;
dvander@27	4108
dvander@27	4109	assert(litidx==0); /* literal queue should be empty */
dvander@27	4110	litidx=0; /* clear the literal pool (should already be empty) */
dvander@27	4111	opertok=0;
dvander@27	4112	lastst=0; /* no statement yet */
dvander@27	4113	cidx=0; /* just to avoid compiler warnings */
dvander@27	4114	glbdecl=0;
dvander@27	4115	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	4116	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	4117
dvander@27	4118	if (firstname!=NULL) {
dvander@27	4119	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	4120	strcpy(symbolname,firstname); /* save symbol name */
dvander@27	4121	tag=firsttag;
dvander@27	4122	} else {
dvander@27	4123	tag= (firsttag>=0) ? firsttag : pc_addtag(NULL);
dvander@27	4124	tok=lex(&val,&str);
dvander@27	4125	assert(!fpublic);
dvander@27	4126	if (tok==tNATIVE \|\| tok==tPUBLIC && stock)
dvander@27	4127	error(42); /* invalid combination of class specifiers */
dvander@27	4128	if (tok==tOPERATOR) {
dvander@27	4129	opertok=operatorname(symbolname);
dvander@27	4130	if (opertok==0)
dvander@27	4131	return TRUE; /* error message already given */
dvander@27	4132	check_operatortag(opertok,tag,symbolname);
dvander@27	4133	} else {
dvander@27	4134	if (tok!=tSYMBOL && freading) {
dvander@27	4135	error(20,str); /* invalid symbol name */
dvander@27	4136	return FALSE;
dvander@27	4137	} /* if */
dvander@27	4138	assert(strlen(str)<=sNAMEMAX);
dvander@27	4139	strcpy(symbolname,str);
dvander@27	4140	} /* if */
dvander@27	4141	} /* if */
dvander@27	4142	/* check whether this is a function or a variable declaration */
dvander@27	4143	if (!matchtoken('('))
dvander@27	4144	return FALSE;
dvander@27	4145	/* so it is a function, proceed */
dvander@27	4146	funcline=fline; /* save line at which the function is defined */
dvander@27	4147	if (symbolname[0]==PUBLIC_CHAR) {
dvander@27	4148	fpublic=TRUE; /* implicitly public function */
dvander@27	4149	if (stock)
dvander@27	4150	error(42); /* invalid combination of class specifiers */
dvander@27	4151	} /* if */
dvander@27	4152	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	4153	if (sym==NULL \|\| (sym->usage & uNATIVE)!=0)
dvander@27	4154	return TRUE; /* it was recognized as a function declaration, but not as a valid one */
dvander@27	4155	if (fpublic)
dvander@27	4156	sym->usage\|=uPUBLIC;
dvander@27	4157	if (fstatic)
dvander@27	4158	sym->fnumber=filenum;
dvander@27	4159	/* if the function was used before being declared, and it has a tag for the
dvander@27	4160	* result, add a third pass (as second "skimming" parse) because the function
dvander@27	4161	* result may have been used with user-defined operators, which have now
dvander@27	4162	* been incorrectly flagged (as the return tag was unknown at the time of
dvander@27	4163	* the call)
dvander@27	4164	*/
dvander@27	4165	if ((sym->usage & (uPROTOTYPED \| uREAD))==uREAD && sym->tag!=0) {
dvander@27	4166	int curstatus=sc_status;
dvander@27	4167	sc_status=statWRITE; /* temporarily set status to WRITE, so the warning isn't blocked */
dvander@27	4168	#if 0 /* SourceMod - silly, should be removed in first pass, so removed */
dvander@27	4169	error(208);
dvander@27	4170	#endif
dvander@27	4171	sc_status=curstatus;
dvander@27	4172	sc_reparse=TRUE; /* must add another pass to "initial scan" phase */
dvander@27	4173	} /* if */
dvander@27	4174	#if 0 /* Not used for SourceMod */
dvander@27	4175	/* we want public functions to be explicitly prototyped, as they are called
dvander@27	4176	* from the outside
dvander@27	4177	*/
dvander@27	4178	if (fpublic && (sym->usage & uFORWARD)==0)
dvander@27	4179	error(235,symbolname);
dvander@27	4180	#endif
dvander@27	4181	/* declare all arguments */
dvander@27	4182	argcnt=declargs(sym,TRUE);
dvander@27	4183	opererror=!operatoradjust(opertok,sym,symbolname,tag);
dvander@27	4184	if (strcmp(symbolname,uMAINFUNC)==0 \|\| strcmp(symbolname,uENTRYFUNC)==0) {
dvander@27	4185	if (argcnt>0)
dvander@27	4186	error(5); /* "main()" and "entry()" functions may not have any arguments */
dvander@27	4187	sym->usage\|=uREAD; /* "main()" is the program's entry point: always used */
dvander@27	4188	} /* if */
dvander@27	4189	state_id=getstates(symbolname);
dvander@27	4190	if (state_id>0 && (opertok!=0 \|\| strcmp(symbolname,uMAINFUNC)==0))
dvander@27	4191	error(82); /* operators may not have states, main() may neither */
dvander@27	4192	attachstatelist(sym,state_id);
dvander@27	4193	/* "declargs()" found the ")"; if a ";" appears after this, it was a
dvander@27	4194	* prototype */
dvander@27	4195	if (matchtoken(';')) {
dvander@1858	4196	if (sym->usage & uPUBLIC)
dvander@1858	4197	error(10);
dvander@27	4198	sym->usage\|=uFORWARD;
dvander@27	4199	if (!sc_needsemicolon)
dvander@745	4200	error(10); /* old style prototypes used with optional semicolumns */
dvander@27	4201	delete_symbols(&loctab,0,TRUE,TRUE); /* prototype is done; forget everything */
dvander@27	4202	return TRUE;
dvander@27	4203	} /* if */
dvander@27	4204	/* so it is not a prototype, proceed */
dvander@27	4205	/* if this is a function that is not referred to (this can only be detected
dvander@27	4206	* in the second stage), shut code generation off */
dvander@27	4207	if (sc_status==statWRITE && (sym->usage & uREAD)==0 && !fpublic) {
dvander@27	4208	sc_status=statSKIP;
dvander@27	4209	cidx=code_idx;
dvander@27	4210	glbdecl=glb_declared;
dvander@27	4211	} /* if */
ds@1265	4212	if ((sym->flags & flgDEPRECATED) != 0 && (sym->usage & uSTOCK) == 0) {
dvander@27	4213	char *ptr= (sym->documentation!=NULL) ? sym->documentation : "";
ds@52	4214	error(234,symbolname,ptr); /* deprecated (probably a public function) */
dvander@27	4215	} /* if */
dvander@27	4216	begcseg();
dvander@27	4217	sym->usage\|=uDEFINE; /* set the definition flag */
dvander@27	4218	if (stock)
dvander@27	4219	sym->usage\|=uSTOCK;
dvander@27	4220	if (opertok!=0 && opererror)
dvander@27	4221	sym->usage &= ~uDEFINE;
dvander@27	4222	/* if the function has states, dump the label to the start of the function */
dvander@27	4223	if (state_id!=0) {
dvander@27	4224	constvalue *ptr=sym->states->next;
dvander@27	4225	while (ptr!=NULL) {
dvander@27	4226	assert(sc_status!=statWRITE \|\| strlen(ptr->name)>0);
dvander@27	4227	if (ptr->index==state_id) {
dvander@27	4228	setlabel((int)strtol(ptr->name,NULL,16));
dvander@27	4229	break;
dvander@27	4230	} /* if */
dvander@27	4231	ptr=ptr->next;
dvander@27	4232	} /* while */
dvander@27	4233	} /* if */
dvander@27	4234	startfunc(sym->name); /* creates stack frame */
dvander@27	4235	insert_dbgline(funcline);
dvander@27	4236	setline(FALSE);
dvander@27	4237	if (sc_alignnext) {
dvander@27	4238	alignframe(sc_dataalign);
dvander@27	4239	sc_alignnext=FALSE;
dvander@27	4240	} /* if */
dvander@27	4241	declared=0; /* number of local cells */
dvander@117	4242	resetstacklist();
dvander@118	4243	resetheaplist();
dvander@27	4244	rettype=(sym->usage & uRETVALUE); /* set "return type" variable */
dvander@27	4245	curfunc=sym;
dvander@27	4246	define_args(); /* add the symbolic info for the function arguments */
dvander@27	4247	#if !defined SC_LIGHT
dvander@27	4248	if (matchtoken('{')) {
dvander@27	4249	lexpush();
dvander@27	4250	} else {
dvander@27	4251	/* Insert a separator so that comments following the statement will not
dvander@27	4252	* be attached to this function; they should be attached to the next
dvander@27	4253	* function. This is not a problem for functions having a compound block,
dvander@27	4254	* because the closing brace is an explicit "end token" for the function.
dvander@27	4255	* With single statement functions, the preprocessor may overread the
dvander@27	4256	* source code before the parser determines an "end of statement".
dvander@27	4257	*/
dvander@27	4258	insert_docstring_separator();
dvander@27	4259	} /* if */
dvander@27	4260	#endif
dvander@27	4261	sc_curstates=state_id;/* set state id, for accessing global state variables */
dvander@27	4262	statement(NULL,FALSE);
dvander@27	4263	sc_curstates=0;
dvander@27	4264	if ((rettype & uRETVALUE)!=0)
dvander@27	4265	sym->usage\|=uRETVALUE;
dvander@27	4266	if (declared!=0) {
dvander@27	4267	/* This happens only in a very special (and useless) case, where a function
dvander@27	4268	* has only a single statement in its body (no compound block) and that
dvander@27	4269	* statement declares a new variable
dvander@27	4270	*/
dvander@459	4271	popstacklist(1);
dvander@27	4272	declared=0;
dvander@27	4273	} /* if */
dvander@27	4274	if ((lastst!=tRETURN) && (lastst!=tGOTO)){
dvander@27	4275	ldconst(0,sPRI);
dvander@27	4276	ffret(strcmp(sym->name,uENTRYFUNC)!=0);
dvander@27	4277	if ((sym->usage & uRETVALUE)!=0) {
dvander@27	4278	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	4279	funcdisplayname(symname,sym->name);
dvander@27	4280	error(209,symname); /* function should return a value */
dvander@27	4281	} /* if */
dvander@27	4282	} /* if */
dvander@27	4283	endfunc();
dvander@27	4284	sym->codeaddr=code_idx;
dvander@27	4285	sc_attachdocumentation(sym); /* attach collected documenation to the function */
dvander@27	4286	if (litidx) { /* if there are literals defined */
dvander@27	4287	glb_declared+=litidx;
dvander@27	4288	begdseg(); /* flip to DATA segment */
dvander@27	4289	dumplits(); /* dump literal strings */
dvander@27	4290	litidx=0;
dvander@27	4291	} /* if */
dvander@27	4292	testsymbols(&loctab,0,TRUE,TRUE); /* test for unused arguments and labels */
dvander@27	4293	delete_symbols(&loctab,0,TRUE,TRUE); /* clear local variables queue */
dvander@27	4294	assert(loctab.next==NULL);
dvander@27	4295	curfunc=NULL;
dvander@27	4296	if (sc_status==statSKIP) {
dvander@27	4297	sc_status=statWRITE;
dvander@27	4298	code_idx=cidx;
dvander@27	4299	glb_declared=glbdecl;
dvander@27	4300	} /* if */
dvander@27	4301	return TRUE;
dvander@27	4302	}
dvander@27	4303
dvander@27	4304	static int argcompare(arginfo a1,arginfo a2)
dvander@27	4305	{
dvander@27	4306	int result,level,i;
dvander@27	4307
dvander@27	4308	#if 0 /* SourceMod uses case insensitive args for forwards */
dvander@27	4309	result= strcmp(a1->name,a2->name)==0; /* name */
dvander@27	4310	#else
dvander@27	4311	result=1;
dvander@27	4312	#endif
dvander@27	4313	if (result)
dvander@27	4314	result= a1->ident==a2->ident; /* type/class */
dvander@27	4315	if (result)
dvander@27	4316	result= a1->usage==a2->usage; /* "const" flag */
dvander@27	4317	if (result)
dvander@27	4318	result= a1->numtags==a2->numtags; /* tags (number and names) */
dvander@27	4319	for (i=0; result && i<a1->numtags; i++)
dvander@27	4320	result= a1->tags[i]==a2->tags[i];
dvander@27	4321	if (result)
dvander@27	4322	result= a1->numdim==a2->numdim; /* array dimensions & index tags */
dvander@27	4323	for (level=0; result && level<a1->numdim; level++)
dvander@27	4324	result= a1->dim[level]==a2->dim[level];
dvander@27	4325	for (level=0; result && level<a1->numdim; level++)
dvander@27	4326	result= a1->idxtag[level]==a2->idxtag[level];
dvander@27	4327	if (result)
dvander@27	4328	result= a1->hasdefault==a2->hasdefault; /* availability of default value */
dvander@27	4329	if (a1->hasdefault) {
dvander@27	4330	if (a1->ident==iREFARRAY) {
dvander@27	4331	if (result)
dvander@27	4332	result= a1->defvalue.array.size==a2->defvalue.array.size;
dvander@27	4333	if (result)
dvander@27	4334	result= a1->defvalue.array.arraysize==a2->defvalue.array.arraysize;
dvander@27	4335	/* ??? should also check contents of the default array (these troubles
dvander@27	4336	* go away in a 2-pass compiler that forbids double declarations, but
dvander@27	4337	* Pawn currently does not forbid them) */
dvander@27	4338	} else {
dvander@27	4339	if (result) {
dvander@286	4340	if ((a1->hasdefault & uSIZEOF)!=0 \|\| (a1->hasdefault & uTAGOF)!=0 \|\| (a1->hasdefault & uCOUNTOF)!=0)
dvander@27	4341	result= a1->hasdefault==a2->hasdefault
dvander@27	4342	&& strcmp(a1->defvalue.size.symname,a2->defvalue.size.symname)==0
dvander@27	4343	&& a1->defvalue.size.level==a2->defvalue.size.level;
dvander@27	4344	else
dvander@27	4345	result= a1->defvalue.val==a2->defvalue.val;
dvander@27	4346	} /* if */
dvander@27	4347	} /* if */
dvander@27	4348	if (result)
dvander@27	4349	result= a1->defvalue_tag==a2->defvalue_tag;
dvander@27	4350	} /* if */
dvander@27	4351	return result;
dvander@27	4352	}
dvander@27	4353
dvander@27	4354	/* declargs()
dvander@27	4355	*
dvander@27	4356	* This routine adds an entry in the local symbol table for each argument
dvander@27	4357	* found in the argument list. It returns the number of arguments.
dvander@27	4358	*/
dvander@27	4359	static int declargs(symbol *sym,int chkshadow)
dvander@27	4360	{
dvander@27	4361	#define MAXTAGS 16
dvander@27	4362	char *ptr;
dvander@27	4363	int argcnt,oldargcnt,tok,tags[MAXTAGS],numtags;
dvander@27	4364	cell val;
dvander@27	4365	arginfo arg, *arglist;
dvander@27	4366	char name[sNAMEMAX+1];
dvander@27	4367	int ident,fpublic,fconst;
dvander@27	4368	int idx;
dvander@27	4369
dvander@27	4370	/* if the function is already defined earlier, get the number of arguments
dvander@27	4371	* of the existing definition
dvander@27	4372	*/
dvander@27	4373	oldargcnt=0;
dvander@27	4374	if ((sym->usage & uPROTOTYPED)!=0)
dvander@27	4375	while (sym->dim.arglist[oldargcnt].ident!=0)
dvander@27	4376	oldargcnt++;
dvander@27	4377	argcnt=0; /* zero aruments up to now */
dvander@27	4378	ident=iVARIABLE;
dvander@27	4379	numtags=0;
dvander@27	4380	fconst=FALSE;
dvander@338	4381	fpublic= (sym->usage & (uPUBLIC\|uSTOCK))!=0;
dvander@27	4382	/* the '(' parantheses has already been parsed */
dvander@27	4383	if (!matchtoken(')')){
dvander@27	4384	do { /* there are arguments; process them */
dvander@27	4385	/* any legal name increases argument count (and stack offset) */
dvander@27	4386	tok=lex(&val,&ptr);
dvander@27	4387	switch (tok) {
dvander@27	4388	case 0:
dvander@27	4389	/* nothing */
dvander@27	4390	break;
dvander@27	4391	case '&':
dvander@27	4392	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4393	error(1,"-identifier-","&");
dvander@27	4394	ident=iREFERENCE;
dvander@27	4395	break;
dvander@27	4396	case tCONST:
dvander@27	4397	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4398	error(1,"-identifier-","const");
dvander@27	4399	fconst=TRUE;
dvander@27	4400	break;
dvander@27	4401	case tLABEL:
dvander@27	4402	if (numtags>0)
dvander@27	4403	error(1,"-identifier-","-tagname-");
dvander@27	4404	tags[0]=pc_addtag(ptr);
dvander@27	4405	numtags=1;
dvander@27	4406	break;
dvander@27	4407	case '{':
dvander@27	4408	if (numtags>0)
dvander@27	4409	error(1,"-identifier-","-tagname-");
dvander@27	4410	numtags=0;
dvander@27	4411	while (numtags<MAXTAGS) {
dvander@27	4412	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@27	4413	break;
dvander@27	4414	tokeninfo(&val,&ptr);
dvander@27	4415	tags[numtags++]=pc_addtag(ptr);
dvander@27	4416	if (matchtoken('}'))
dvander@27	4417	break;
dvander@27	4418	needtoken(',');
dvander@27	4419	} /* for */
dvander@27	4420	needtoken(':');
dvander@27	4421	tok=tLABEL; /* for outer loop: flag that we have seen a tagname */
dvander@27	4422	break;
dvander@27	4423	case tSYMBOL:
dvander@27	4424	if (argcnt>=sMAXARGS)
dvander@27	4425	error(45); /* too many function arguments */
dvander@27	4426	strcpy(name,ptr); /* save symbol name */
dvander@27	4427	if (name[0]==PUBLIC_CHAR)
dvander@27	4428	error(56,name); /* function arguments cannot be public */
dvander@27	4429	if (numtags==0)
dvander@27	4430	tags[numtags++]=0; /* default tag */
dvander@27	4431	/* Stack layout:
dvander@27	4432	* base + 0*sizeof(cell) == previous "base"
dvander@27	4433	* base + 1*sizeof(cell) == function return address
dvander@27	4434	* base + 2*sizeof(cell) == number of arguments
dvander@27	4435	* base + 3*sizeof(cell) == first argument of the function
dvander@27	4436	* So the offset of each argument is "(argcnt+3) * sizeof(cell)".
dvander@27	4437	*/
dvander@27	4438	doarg(name,ident,(argcnt+3)*sizeof(cell),tags,numtags,fpublic,fconst,chkshadow,&arg);
dvander@338	4439	/* :TODO: fix this so stocks that are func pointers can't have default arguments? */
dvander@338	4440	if ((sym->usage & uPUBLIC) && arg.hasdefault)
dvander@27	4441	error(59,name); /* arguments of a public function may not have a default value */
dvander@27	4442	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4443	/* redimension the argument list, add the entry */
dvander@27	4444	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4445	if (sym->dim.arglist==0)
ds@841	4446	error(123); /* insufficient memory */
dvander@27	4447	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4448	sym->dim.arglist[argcnt]=arg;
dvander@27	4449	} else {
dvander@27	4450	/* check the argument with the earlier definition */
dvander@27	4451	if (argcnt>oldargcnt \|\| !argcompare(&sym->dim.arglist[argcnt],&arg))
dvander@27	4452	error(25); /* function definition does not match prototype */
dvander@27	4453	/* may need to free default array argument and the tag list */
dvander@27	4454	if (arg.ident==iREFARRAY && arg.hasdefault)
dvander@27	4455	free(arg.defvalue.array.data);
dvander@27	4456	else if (arg.ident==iVARIABLE
dvander@286	4457	&& ((arg.hasdefault & uSIZEOF)!=0 \|\| (arg.hasdefault & uTAGOF)!=0) \|\| (arg.hasdefault & uCOUNTOF)!=0)
dvander@27	4458	free(arg.defvalue.size.symname);
dvander@27	4459	free(arg.tags);
dvander@27	4460	} /* if */
dvander@27	4461	argcnt++;
dvander@27	4462	ident=iVARIABLE;
dvander@27	4463	numtags=0;
dvander@27	4464	fconst=FALSE;
dvander@27	4465	break;
dvander@27	4466	case tELLIPS:
dvander@27	4467	if (ident!=iVARIABLE)
dvander@27	4468	error(10); /* illegal function or declaration */
dvander@27	4469	if (numtags==0)
dvander@27	4470	tags[numtags++]=0; /* default tag */
dvander@27	4471	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4472	/* redimension the argument list, add the entry iVARARGS */
dvander@27	4473	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4474	if (sym->dim.arglist==0)
ds@841	4475	error(123); /* insufficient memory */
dvander@27	4476	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4477	sym->dim.arglist[argcnt].ident=iVARARGS;
dvander@27	4478	sym->dim.arglist[argcnt].hasdefault=FALSE;
dvander@27	4479	sym->dim.arglist[argcnt].defvalue.val=0;
dvander@27	4480	sym->dim.arglist[argcnt].defvalue_tag=0;
dvander@27	4481	sym->dim.arglist[argcnt].numtags=numtags;
dvander@27	4482	sym->dim.arglist[argcnt].tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4483	if (sym->dim.arglist[argcnt].tags==NULL)
ds@841	4484	error(123); /* insufficient memory */
dvander@27	4485	memcpy(sym->dim.arglist[argcnt].tags,tags,numtags*sizeof tags[0]);
dvander@27	4486	} else {
dvander@27	4487	if (argcnt>oldargcnt \|\| sym->dim.arglist[argcnt].ident!=iVARARGS)
dvander@27	4488	error(25); /* function definition does not match prototype */
dvander@27	4489	} /* if */
dvander@27	4490	argcnt++;
dvander@27	4491	break;
dvander@27	4492	default:
dvander@27	4493	error(10); /* illegal function or declaration */
dvander@27	4494	} /* switch */
dvander@27	4495	} while (tok=='&' \|\| tok==tLABEL \|\| tok==tCONST
dvander@27	4496	\|\| tok!=tELLIPS && matchtoken(',')); /* more? */
dvander@27	4497	/* if the next token is not ",", it should be ")" */
dvander@27	4498	needtoken(')');
dvander@27	4499	} /* if */
dvander@27	4500	/* resolve any "sizeof" arguments (now that all arguments are known) */
dvander@27	4501	assert(sym->dim.arglist!=NULL);
dvander@27	4502	arglist=sym->dim.arglist;
dvander@27	4503	for (idx=0; idx<argcnt && arglist[idx].ident!=0; idx++) {
dvander@286	4504	if ((arglist[idx].hasdefault & uSIZEOF)!=0
dvander@286	4505	\|\| (arglist[idx].hasdefault & uTAGOF)!=0
dvander@286	4506	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0) {
dvander@27	4507	int altidx;
dvander@27	4508	/* Find the argument with the name mentioned after the "sizeof". Note
dvander@27	4509	* that we cannot use findloc here because we need the arginfo struct,
dvander@27	4510	* not the symbol.
dvander@27	4511	*/
dvander@27	4512	ptr=arglist[idx].defvalue.size.symname;
dvander@27	4513	assert(ptr!=NULL);
dvander@27	4514	for (altidx=0; altidx<argcnt && strcmp(ptr,arglist[altidx].name)!=0; altidx++)
dvander@27	4515	/* nothing */;
dvander@27	4516	if (altidx>=argcnt) {
dvander@27	4517	error(17,ptr); /* undefined symbol */
dvander@27	4518	} else {
dvander@27	4519	assert(arglist[idx].defvalue.size.symname!=NULL);
dvander@27	4520	/* check the level against the number of dimensions */
dvander@27	4521	if (arglist[idx].defvalue.size.level>0
dvander@27	4522	&& arglist[idx].defvalue.size.level>=arglist[altidx].numdim)
dvander@27	4523	error(28,arglist[idx].name); /* invalid subscript */
dvander@27	4524	/* check the type of the argument whose size to take; for a iVARIABLE
dvander@27	4525	* or a iREFERENCE, this is always 1 (so the code is redundant)
dvander@27	4526	*/
dvander@27	4527	assert(arglist[altidx].ident!=iVARARGS);
dvander@286	4528	if (arglist[altidx].ident!=iREFARRAY
dvander@286	4529	&& (((arglist[idx].hasdefault & uSIZEOF)!=0)
dvander@286	4530	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0)) {
dvander@27	4531	if ((arglist[idx].hasdefault & uTAGOF)!=0) {
dvander@27	4532	error(81,arglist[idx].name); /* cannot take "tagof" an indexed array */
dvander@27	4533	} else {
dvander@27	4534	assert(arglist[altidx].ident==iVARIABLE \|\| arglist[altidx].ident==iREFERENCE);
dvander@27	4535	error(223,ptr); /* redundant sizeof */
dvander@27	4536	} /* if */
dvander@27	4537	} /* if */
dvander@27	4538	} /* if */
dvander@27	4539	} /* if */
dvander@27	4540	} /* for */
dvander@27	4541
dvander@27	4542	sym->usage\|=uPROTOTYPED;
dvander@27	4543	errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/
dvander@27	4544	return argcnt;
dvander@27	4545	}
dvander@27	4546
dvander@27	4547	/* doarg - declare one argument type
dvander@27	4548	*
dvander@27	4549	* this routine is called from "declargs()" and adds an entry in the local
dvander@27	4550	* symbol table for one argument.
dvander@27	4551	*
dvander@27	4552	* "fpublic" indicates whether the function for this argument list is public.
dvander@27	4553	* The arguments themselves are never public.
dvander@27	4554	*/
dvander@27	4555	static void doarg(char *name,int ident,int offset,int tags[],int numtags,
dvander@27	4556	int fpublic,int fconst,int chkshadow,arginfo *arg)
dvander@27	4557	{
dvander@27	4558	symbol *argsym;
dvander@27	4559	constvalue *enumroot;
dvander@27	4560	cell size;
dvander@286	4561	int slength=0;
dvander@27	4562
dvander@27	4563	strcpy(arg->name,name);
dvander@27	4564	arg->hasdefault=FALSE; /* preset (most common case) */
dvander@27	4565	arg->defvalue.val=0; /* clear */
dvander@27	4566	arg->defvalue_tag=0;
dvander@27	4567	arg->numdim=0;
dvander@27	4568	if (matchtoken('[')) {
dvander@27	4569	if (ident==iREFERENCE)
dvander@27	4570	error(67,name); /* illegal declaration ("&name[]" is unsupported) */
dvander@27	4571	do {
dvander@27	4572	if (arg->numdim == sDIMEN_MAX) {
dvander@27	4573	error(53); /* exceeding maximum number of dimensions */
dvander@27	4574	return;
dvander@27	4575	} /* if */
dvander@27	4576	size=needsub(&arg->idxtag[arg->numdim],&enumroot);/* may be zero here, it is a pointer anyway */
dvander@27	4577	#if INT_MAX < LONG_MAX
dvander@27	4578	if (size > INT_MAX)
ds@841	4579	error(125); /* overflow, exceeding capacity */
dvander@27	4580	#endif
dvander@27	4581	arg->dim[arg->numdim]=(int)size;
dvander@27	4582	arg->numdim+=1;
dvander@27	4583	} while (matchtoken('['));
dvander@27	4584	ident=iREFARRAY; /* "reference to array" (is a pointer) */
dvander@286	4585	if (checktag(tags, numtags, pc_tag_string)) {
dvander@286	4586	slength = arg->dim[arg->numdim - 1];
dvander@151	4587	arg->dim[arg->numdim - 1] = (size + sizeof(cell) - 1) / sizeof(cell);
dvander@286	4588	}
dvander@27	4589	if (matchtoken('=')) {
dvander@27	4590	assert(litidx==0); /* at the start of a function, this is reset */
dvander@27	4591	assert(numtags>0);
dvander@1044	4592	/* Check if there is a symbol */
dvander@1044	4593	if (matchtoken(tSYMBOL)) {
dvander@1044	4594	symbol *sym;
dvander@1044	4595	char *name;
dvander@1044	4596	cell val;
dvander@1044	4597	tokeninfo(&val,&name);
dvander@1044	4598	if ((sym=findglb(name, sGLOBAL)) == NULL) {
dvander@1044	4599	error(17, name); /* undefined symbol */
dvander@1044	4600	} else {
dvander@1044	4601	arg->hasdefault=TRUE; /* argument as a default value */
dvander@1044	4602	memset(&arg->defvalue, 0, sizeof(arg->defvalue));
dvander@1044	4603	arg->defvalue.array.data=NULL;
dvander@1044	4604	arg->defvalue.array.addr=sym->addr;
dvander@1044	4605	arg->defvalue_tag=sym->tag;
dvander@1044	4606	if (sc_status==statWRITE && (sym->usage & uREAD)==0) {
dvander@1044	4607	markusage(sym, uREAD);
dvander@1044	4608	}
dvander@1044	4609	}
dvander@1044	4610	} else {
dvander@1045	4611	initials2(ident,tags[0],&size,arg->dim,arg->numdim,enumroot, 1, 0);
dvander@1044	4612	assert(size>=litidx);
dvander@1044	4613	/* allocate memory to hold the initial values */
dvander@1044	4614	arg->defvalue.array.data=(cell )malloc(litidxsizeof(cell));
dvander@1044	4615	if (arg->defvalue.array.data!=NULL) {
dvander@1044	4616	int i;
dvander@1044	4617	memcpy(arg->defvalue.array.data,litq,litidx*sizeof(cell));
dvander@1044	4618	arg->hasdefault=TRUE; /* argument has default value */
dvander@1044	4619	arg->defvalue.array.size=litidx;
dvander@1044	4620	arg->defvalue.array.addr=-1;
dvander@1044	4621	/* calulate size to reserve on the heap */
dvander@1044	4622	arg->defvalue.array.arraysize=1;
dvander@1044	4623	for (i=0; i<arg->numdim; i++)
dvander@1044	4624	arg->defvalue.array.arraysize*=arg->dim[i];
dvander@1044	4625	if (arg->defvalue.array.arraysize < arg->defvalue.array.size)
dvander@1044	4626	arg->defvalue.array.arraysize = arg->defvalue.array.size;
dvander@1044	4627	} /* if */
dvander@1044	4628	litidx=0; /* reset */
dvander@1044	4629	}
dvander@27	4630	} /* if */
dvander@27	4631	} else {
dvander@27	4632	if (matchtoken('=')) {
dvander@27	4633	unsigned char size_tag_token;
dvander@27	4634	assert(ident==iVARIABLE \|\| ident==iREFERENCE);
dvander@27	4635	arg->hasdefault=TRUE; /* argument has a default value */
dvander@27	4636	size_tag_token=(unsigned char)(matchtoken(tSIZEOF) ? uSIZEOF : 0);
dvander@27	4637	if (size_tag_token==0)
dvander@27	4638	size_tag_token=(unsigned char)(matchtoken(tTAGOF) ? uTAGOF : 0);
dvander@286	4639	if (size_tag_token==0)
dvander@286	4640	size_tag_token=(unsigned char)(matchtoken(tCELLSOF) ? uCOUNTOF : 0);
dvander@27	4641	if (size_tag_token!=0) {
dvander@27	4642	int paranthese;
dvander@27	4643	if (ident==iREFERENCE)
dvander@27	4644	error(66,name); /* argument may not be a reference */
dvander@27	4645	paranthese=0;
dvander@27	4646	while (matchtoken('('))
dvander@27	4647	paranthese++;
dvander@27	4648	if (needtoken(tSYMBOL)) {
dvander@27	4649	/* save the name of the argument whose size id to take */
dvander@27	4650	char *name;
dvander@27	4651	cell val;
dvander@27	4652	tokeninfo(&val,&name);
dvander@27	4653	if ((arg->defvalue.size.symname=duplicatestring(name)) == NULL)
ds@841	4654	error(123); /* insufficient memory */
dvander@27	4655	arg->defvalue.size.level=0;
dvander@286	4656	if (size_tag_token==uSIZEOF \|\| size_tag_token==uCOUNTOF) {
dvander@27	4657	while (matchtoken('[')) {
dvander@27	4658	arg->defvalue.size.level+=(short)1;
dvander@27	4659	needtoken(']');
dvander@27	4660	} /* while */
dvander@27	4661	} /* if */
dvander@27	4662	if (ident==iVARIABLE) /* make sure we set this only if not a reference */
dvander@27	4663	arg->hasdefault \|= size_tag_token; /* uSIZEOF or uTAGOF */
dvander@27	4664	} /* if */
dvander@27	4665	while (paranthese--)
dvander@27	4666	needtoken(')');
dvander@27	4667	} else {
dvander@27	4668	constexpr(&arg->defvalue.val,&arg->defvalue_tag,NULL);
dvander@27	4669	assert(numtags>0);
dvander@27	4670	if (!matchtag(tags[0],arg->defvalue_tag,TRUE))
dvander@27	4671	error(213); /* tagname mismatch */
dvander@27	4672	} /* if */
dvander@27	4673	} /* if */
dvander@27	4674	} /* if */
dvander@27	4675	arg->ident=(char)ident;
dvander@27	4676	arg->usage=(char)(fconst ? uCONST : 0);
dvander@27	4677	arg->numtags=numtags;
dvander@27	4678	arg->tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4679	if (arg->tags==NULL)
ds@841	4680	error(123); /* insufficient memory */
dvander@27	4681	memcpy(arg->tags,tags,numtags*sizeof tags[0]);
dvander@27	4682	argsym=findloc(name);
dvander@27	4683	if (argsym!=NULL) {
dvander@27	4684	error(21,name); /* symbol already defined */
dvander@27	4685	} else {
dvander@27	4686	if (chkshadow && (argsym=findglb(name,sSTATEVAR))!=NULL && argsym->ident!=iFUNCTN)
dvander@27	4687	error(219,name); /* variable shadows another symbol */
dvander@27	4688	/* add details of type and address */
dvander@27	4689	assert(numtags>0);
dvander@286	4690	argsym=addvariable2(name,offset,ident,sLOCAL,tags[0],
dvander@286	4691	arg->dim,arg->numdim,arg->idxtag,slength);
dvander@27	4692	argsym->compound=0;
dvander@27	4693	if (ident==iREFERENCE)
dvander@27	4694	argsym->usage\|=uREAD; /* because references are passed back */
dvander@27	4695	if (fpublic)
dvander@27	4696	argsym->usage\|=uREAD; /* arguments of public functions are always "used" */
dvander@27	4697	if (fconst)
dvander@27	4698	argsym->usage\|=uCONST;
dvander@27	4699	} /* if */
dvander@27	4700	}
dvander@27	4701
dvander@27	4702	static int count_referrers(symbol *entry)
dvander@27	4703	{
dvander@27	4704	int i,count;
dvander@27	4705
dvander@27	4706	count=0;
dvander@27	4707	for (i=0; i<entry->numrefers; i++)
dvander@27	4708	if (entry->refer[i]!=NULL)
dvander@27	4709	count++;
dvander@27	4710	return count;
dvander@27	4711	}
dvander@27	4712
dvander@27	4713	#if !defined SC_LIGHT
dvander@27	4714	static int find_xmltag(char source,char xmltag,char xmlparam,char xmlvalue,
dvander@27	4715	char *outer_start,int outer_length,
dvander@27	4716	char *inner_start,int inner_length)
dvander@27	4717	{
dvander@27	4718	char ptr,inner_end;
dvander@27	4719	int xmltag_len,xmlparam_len,xmlvalue_len;
dvander@27	4720	int match;
dvander@27	4721
dvander@27	4722	assert(source!=NULL);
dvander@27	4723	assert(xmltag!=NULL);
dvander@27	4724	assert(outer_start!=NULL);
dvander@27	4725	assert(outer_length!=NULL);
dvander@27	4726	assert(inner_start!=NULL);
dvander@27	4727	assert(inner_length!=NULL);
dvander@27	4728
dvander@27	4729	/* both NULL or both non-NULL */
dvander@27	4730	assert(xmlvalue!=NULL && xmlparam!=NULL \|\| xmlvalue==NULL && xmlparam==NULL);
dvander@27	4731
dvander@27	4732	xmltag_len=strlen(xmltag);
dvander@27	4733	xmlparam_len= (xmlparam!=NULL) ? strlen(xmlparam) : 0;
dvander@27	4734	xmlvalue_len= (xmlvalue!=NULL) ? strlen(xmlvalue) : 0;
dvander@27	4735	ptr=source;
dvander@27	4736	/* find an opening '<' */
dvander@27	4737	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4738	outer_start=ptr; / be optimistic... */
dvander@27	4739	match=FALSE; /* ...and pessimistic at the same time */
dvander@27	4740	ptr++; /* skip '<' */
dvander@27	4741	while (ptr!='\0' && ptr<=' ')
dvander@27	4742	ptr++; /* skip white space */
dvander@27	4743	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4744	/* xml tag found, optionally check the parameter */
dvander@27	4745	ptr+=xmltag_len;
dvander@27	4746	while (ptr!='\0' && ptr<=' ')
dvander@27	4747	ptr++; /* skip white space */
dvander@27	4748	if (xmlparam!=NULL) {
dvander@27	4749	if (strncmp(ptr,xmlparam,xmlparam_len)==0 && ((ptr+xmlparam_len)<=' ' \|\| (ptr+xmlparam_len)=='=')) {
dvander@27	4750	ptr+=xmlparam_len;
dvander@27	4751	while (ptr!='\0' && ptr<=' ')
dvander@27	4752	ptr++; /* skip white space */
dvander@27	4753	if (*ptr=='=') {
dvander@27	4754	ptr++; /* skip '=' */
dvander@27	4755	while (ptr!='\0' && ptr<=' ')
dvander@27	4756	ptr++; /* skip white space */
dvander@27	4757	if (ptr=='"' \|\| ptr=='\'')
dvander@27	4758	ptr++; /* skip " or ' */
dvander@27	4759	assert(xmlvalue!=NULL);
dvander@27	4760	if (strncmp(ptr,xmlvalue,xmlvalue_len)==0
dvander@27	4761	&& (*(ptr+xmlvalue_len)<=' '
dvander@27	4762	\|\| *(ptr+xmlvalue_len)=='>'
dvander@27	4763	\|\| *(ptr+xmlvalue_len)=='"'
dvander@27	4764	\|\| *(ptr+xmlvalue_len)=='\''))
dvander@27	4765	match=TRUE; /* found it */
dvander@27	4766	} /* if */
dvander@27	4767	} /* if */
dvander@27	4768	} else {
dvander@27	4769	match=TRUE; /* don't check the parameter */
dvander@27	4770	} /* if */
dvander@27	4771	} /* if */
dvander@27	4772	if (match) {
dvander@27	4773	/* now find the end of the opening tag */
dvander@27	4774	while (ptr!='\0' && ptr!='>')
dvander@27	4775	ptr++;
dvander@27	4776	if (*ptr=='>')
dvander@27	4777	ptr++;
dvander@27	4778	while (ptr!='\0' && ptr<=' ')
dvander@27	4779	ptr++; /* skip white space */
dvander@27	4780	*inner_start=ptr;
dvander@27	4781	/* find the start of the closing tag (assume no nesting) */
dvander@27	4782	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4783	inner_end=ptr;
dvander@27	4784	ptr++; /* skip '<' */
dvander@27	4785	while (ptr!='\0' && ptr<=' ')
dvander@27	4786	ptr++; /* skip white space */
dvander@27	4787	if (*ptr=='/') {
dvander@27	4788	ptr++; /* skip / */
dvander@27	4789	while (ptr!='\0' && ptr<=' ')
dvander@27	4790	ptr++; /* skip white space */
dvander@27	4791	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4792	/* find the end of the closing tag */
dvander@27	4793	while (ptr!='\0' && ptr!='>')
dvander@27	4794	ptr++;
dvander@27	4795	if (*ptr=='>')
dvander@27	4796	ptr++;
dvander@27	4797	/* set the lengths of the inner and outer segment */
dvander@27	4798	assert(*inner_start!=NULL);
dvander@27	4799	inner_length=(int)(inner_end-inner_start);
dvander@27	4800	assert(*outer_start!=NULL);
dvander@27	4801	outer_length=(int)(ptr-outer_start);
dvander@27	4802	break; /* break out of the loop */
dvander@27	4803	} /* if */
dvander@27	4804	} /* if */
dvander@27	4805	} /* while */
dvander@27	4806	return TRUE;
dvander@27	4807	} /* if */
dvander@27	4808	} /* while */
dvander@27	4809	return FALSE; /* not found */
dvander@27	4810	}
dvander@27	4811
dvander@27	4812	static char xmlencode(char dest,char *source)
dvander@27	4813	{
dvander@27	4814	char temp[2sNAMEMAX+20],ptr;
dvander@27	4815
dvander@27	4816	/* replace < by < and such; normally, such a symbol occurs at most once in
dvander@27	4817	* a symbol name (e.g. "operator<")
dvander@27	4818	*/
dvander@27	4819	ptr=temp;
dvander@27	4820	while (*source!='\0') {
dvander@27	4821	switch (*source) {
dvander@27	4822	case '<':
dvander@27	4823	strcpy(ptr,"<");
dvander@27	4824	ptr+=4;
dvander@27	4825	break;
dvander@27	4826	case '>':
dvander@27	4827	strcpy(ptr,">");
dvander@27	4828	ptr+=4;
dvander@27	4829	break;
dvander@27	4830	case '&':
dvander@27	4831	strcpy(ptr,"&");
dvander@27	4832	ptr+=5;
dvander@27	4833	break;
dvander@27	4834	default:
dvander@27	4835	ptr++=source;
dvander@27	4836	} /* switch */
dvander@27	4837	source++;
dvander@27	4838	} /* while */
dvander@27	4839	*ptr='\0';
dvander@27	4840	strcpy(dest,temp);
dvander@27	4841	return dest;
dvander@27	4842	}
dvander@27	4843
dvander@27	4844	static void make_report(symbol root,FILE log,char *sourcefile)
dvander@27	4845	{
dvander@27	4846	char symname[_MAX_PATH];
dvander@27	4847	int i,arg;
dvander@27	4848	symbol sym,ref;
dvander@27	4849	constvalue *tagsym;
dvander@27	4850	constvalue *enumroot;
dvander@27	4851	char *ptr;
dvander@27	4852
dvander@27	4853	/* adapt the installation directory */
dvander@27	4854	strcpy(symname,sc_rootpath);
dvander@27	4855	#if DIRSEP_CHAR=='\\'
dvander@27	4856	while ((ptr=strchr(symname,':'))!=NULL)
dvander@27	4857	*ptr='\|';
dvander@27	4858	while ((ptr=strchr(symname,DIRSEP_CHAR))!=NULL)
dvander@27	4859	*ptr='/';
dvander@27	4860	#endif
dvander@27	4861
dvander@27	4862	/* the XML header */
dvander@27	4863	fprintf(log,"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
dvander@27	4864	fprintf(log,"<?xml-stylesheet href=\"file:///%s/xml/pawndoc.xsl\" type=\"text/xsl\"?>\n",symname);
dvander@27	4865	fprintf(log,"<doc source=\"%s\">\n",sourcefile);
dvander@27	4866	ptr=strrchr(sourcefile,DIRSEP_CHAR);
dvander@27	4867	if (ptr!=NULL)
dvander@27	4868	ptr++;
dvander@27	4869	else
dvander@27	4870	ptr=sourcefile;
dvander@27	4871	fprintf(log,"\t<assembly>\n\t\t<name>%s</name>\n\t</assembly>\n",ptr);
dvander@27	4872
dvander@27	4873	/* attach the global documentation, if any */
dvander@27	4874	if (sc_documentation!=NULL) {
dvander@27	4875	fprintf(log,"\n\t<!-- general -->\n");
dvander@27	4876	fprintf(log,"\t<general>\n\t\t");
dvander@27	4877	fputs(sc_documentation,log);
dvander@27	4878	fprintf(log,"\n\t</general>\n\n");
dvander@27	4879	} /* if */
dvander@27	4880
dvander@27	4881	/* use multiple passes to print constants variables and functions in
dvander@27	4882	* separate sections
dvander@27	4883	*/
dvander@27	4884	fprintf(log,"\t<members>\n");
dvander@27	4885
dvander@27	4886	fprintf(log,"\n\t\t<!-- enumerations -->\n");
dvander@27	4887	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4888	if (sym->parent!=NULL)
dvander@27	4889	continue; /* hierarchical data type */
dvander@27	4890	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4891	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4892	if (sym->ident!=iCONSTEXPR \|\| (sym->usage & uENUMROOT)==0)
dvander@27	4893	continue;
dvander@27	4894	if ((sym->usage & uREAD)==0)
dvander@27	4895	continue;
dvander@27	4896	fprintf(log,"\t\t<member name=\"T:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4897	if (sym->tag!=0) {
dvander@27	4898	tagsym=find_tag_byval(sym->tag);
dvander@27	4899	assert(tagsym!=NULL);
dvander@27	4900	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4901	} /* if */
dvander@27	4902	/* browse through all fields */
dvander@27	4903	if ((enumroot=sym->dim.enumlist)!=NULL) {
dvander@27	4904	enumroot=enumroot->next; /* skip root */
dvander@27	4905	while (enumroot!=NULL) {
dvander@27	4906	fprintf(log,"\t\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,enumroot->name),enumroot->value);
dvander@27	4907	/* find the constant with this name and get the tag */
dvander@27	4908	ref=findglb(enumroot->name,sGLOBAL);
dvander@27	4909	if (ref!=NULL) {
dvander@27	4910	if (ref->x.tags.index!=0) {
dvander@27	4911	tagsym=find_tag_byval(ref->x.tags.index);
dvander@27	4912	assert(tagsym!=NULL);
dvander@27	4913	fprintf(log,"\t\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4914	} /* if */
dvander@27	4915	if (ref->dim.array.length!=1)
dvander@27	4916	fprintf(log,"\t\t\t\t<size value=\"%ld\"/>\n",(long)ref->dim.array.length);
dvander@27	4917	} /* if */
dvander@27	4918	fprintf(log,"\t\t\t</member>\n");
dvander@27	4919	enumroot=enumroot->next;
dvander@27	4920	} /* while */
dvander@27	4921	} /* if */
dvander@27	4922	assert(sym->refer!=NULL);
dvander@27	4923	for (i=0; i<sym->numrefers; i++) {
dvander@27	4924	if ((ref=sym->refer[i])!=NULL)
dvander@27	4925	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4926	} /* for */
dvander@27	4927	if (sym->documentation!=NULL)
dvander@27	4928	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4929	fprintf(log,"\t\t</member>\n");
dvander@27	4930	} /* for */
dvander@27	4931
dvander@27	4932	fprintf(log,"\n\t\t<!-- constants -->\n");
dvander@27	4933	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4934	if (sym->parent!=NULL)
dvander@27	4935	continue; /* hierarchical data type */
dvander@27	4936	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4937	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4938	if (sym->ident!=iCONSTEXPR)
dvander@27	4939	continue;
dvander@27	4940	if ((sym->usage & uREAD)==0 \|\| (sym->usage & (uENUMFIELD \| uENUMROOT))!=0)
dvander@27	4941	continue;
dvander@27	4942	fprintf(log,"\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4943	if (sym->tag!=0) {
dvander@27	4944	tagsym=find_tag_byval(sym->tag);
dvander@27	4945	assert(tagsym!=NULL);
dvander@27	4946	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4947	} /* if */
dvander@27	4948	assert(sym->refer!=NULL);
dvander@27	4949	for (i=0; i<sym->numrefers; i++) {
dvander@27	4950	if ((ref=sym->refer[i])!=NULL)
dvander@27	4951	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4952	} /* for */
dvander@27	4953	if (sym->documentation!=NULL)
dvander@27	4954	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4955	fprintf(log,"\t\t</member>\n");
dvander@27	4956	} /* for */
dvander@27	4957
dvander@27	4958	fprintf(log,"\n\t\t<!-- variables -->\n");
dvander@27	4959	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4960	if (sym->parent!=NULL)
dvander@27	4961	continue; /* hierarchical data type */
dvander@27	4962	if (sym->ident!=iVARIABLE && sym->ident!=iARRAY)
dvander@27	4963	continue;
dvander@27	4964	fprintf(log,"\t\t<member name=\"F:%s\">\n",funcdisplayname(symname,sym->name));
dvander@27	4965	if (sym->tag!=0) {
dvander@27	4966	tagsym=find_tag_byval(sym->tag);
dvander@27	4967	assert(tagsym!=NULL);
dvander@27	4968	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4969	} /* if */
dvander@27	4970	assert(sym->refer!=NULL);
dvander@27	4971	if ((sym->usage & uPUBLIC)!=0)
dvander@27	4972	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	4973	for (i=0; i<sym->numrefers; i++) {
dvander@27	4974	if ((ref=sym->refer[i])!=NULL)
dvander@27	4975	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4976	} /* for */
dvander@27	4977	if (sym->documentation!=NULL)
dvander@27	4978	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4979	fprintf(log,"\t\t</member>\n");
dvander@27	4980	} /* for */
dvander@27	4981
dvander@27	4982	fprintf(log,"\n\t\t<!-- functions -->\n");
dvander@27	4983	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4984	if (sym->parent!=NULL)
dvander@27	4985	continue; /* hierarchical data type */
dvander@27	4986	if (sym->ident!=iFUNCTN)
dvander@27	4987	continue;
dvander@27	4988	if ((sym->usage & (uREAD \| uNATIVE))==uNATIVE)
dvander@27	4989	continue; /* unused native function */
dvander@27	4990	funcdisplayname(symname,sym->name);
dvander@27	4991	xmlencode(symname,symname);
dvander@27	4992	fprintf(log,"\t\t<member name=\"M:%s\" syntax=\"%s(",symname,symname);
dvander@27	4993	/* print only the names of the parameters between the parentheses */
dvander@27	4994	assert(sym->dim.arglist!=NULL);
dvander@27	4995	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	4996	int dim;
dvander@27	4997	if (arg>0)
dvander@27	4998	fprintf(log,", ");
dvander@27	4999	switch (sym->dim.arglist[arg].ident) {
dvander@27	5000	case iVARIABLE:
dvander@27	5001	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	5002	break;
dvander@27	5003	case iREFERENCE:
dvander@27	5004	fprintf(log,"&%s",sym->dim.arglist[arg].name);
dvander@27	5005	break;
dvander@27	5006	case iREFARRAY:
dvander@27	5007	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	5008	for (dim=0; dim<sym->dim.arglist[arg].numdim;dim++)
dvander@27	5009	fprintf(log,"[]");
dvander@27	5010	break;
dvander@27	5011	case iVARARGS:
dvander@27	5012	fprintf(log,"...");
dvander@27	5013	break;
dvander@27	5014	} /* switch */
dvander@27	5015	} /* for */
dvander@27	5016	/* ??? should also print an "array return" size */
dvander@27	5017	fprintf(log,")\">\n");
dvander@27	5018	if (sym->tag!=0) {
dvander@27	5019	tagsym=find_tag_byval(sym->tag);
dvander@27	5020	assert(tagsym!=NULL);
dvander@27	5021	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	5022	} /* if */
dvander@27	5023	/* check whether this function is called from the outside */
dvander@27	5024	if ((sym->usage & uNATIVE)!=0)
dvander@27	5025	fprintf(log,"\t\t\t<attribute name=\"native\"/>\n");
dvander@27	5026	if ((sym->usage & uPUBLIC)!=0)
dvander@27	5027	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	5028	if (strcmp(sym->name,uMAINFUNC)==0 \|\| strcmp(sym->name,uENTRYFUNC)==0)
dvander@27	5029	fprintf(log,"\t\t\t<attribute name=\"entry\"/>\n");
dvander@27	5030	if ((sym->usage & uNATIVE)==0)
dvander@27	5031	fprintf(log,"\t\t\t<stacksize value=\"%ld\"/>\n",(long)sym->x.stacksize);
dvander@27	5032	if (sym->states!=NULL) {
dvander@27	5033	constvalue *stlist=sym->states->next;
dvander@27	5034	assert(stlist!=NULL); /* there should be at least one state item */
dvander@27	5035	while (stlist!=NULL && stlist->index==-1)
dvander@27	5036	stlist=stlist->next;
dvander@27	5037	assert(stlist!=NULL); /* state id should be found */
dvander@27	5038	i=state_getfsa(stlist->index);
dvander@27	5039	assert(i>=0); /* automaton 0 exists */
dvander@27	5040	stlist=automaton_findid(i);
dvander@27	5041	assert(stlist!=NULL); /* automaton should be found */
dvander@27	5042	fprintf(log,"\t\t\t<automaton name=\"%s\"/>\n", strlen(stlist->name)>0 ? stlist->name : "(anonymous)");
dvander@27	5043	//??? dump state decision table
dvander@27	5044	} /* if */
dvander@27	5045	assert(sym->refer!=NULL);
dvander@27	5046	for (i=0; i<sym->numrefers; i++)
dvander@27	5047	if ((ref=sym->refer[i])!=NULL)
dvander@27	5048	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	5049	/* print all symbols that are required for this function to compile */
dvander@27	5050	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	5051	if (ref==sym)
dvander@27	5052	continue;
dvander@27	5053	for (i=0; i<ref->numrefers; i++)
dvander@27	5054	if (ref->refer[i]==sym)
dvander@27	5055	fprintf(log,"\t\t\t<dependency name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	5056	} /* for */
dvander@27	5057	/* print parameter list, with tag & const information, plus descriptions */
dvander@27	5058	assert(sym->dim.arglist!=NULL);
dvander@27	5059	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	5060	int dim,paraminfo;
dvander@27	5061	char outer_start,inner_start;
dvander@27	5062	int outer_length,inner_length;
dvander@27	5063	if (sym->dim.arglist[arg].ident==iVARARGS)
dvander@27	5064	fprintf(log,"\t\t\t<param name=\"...\">\n");
dvander@27	5065	else
dvander@27	5066	fprintf(log,"\t\t\t<param name=\"%s\">\n",sym->dim.arglist[arg].name);
dvander@27	5067	/* print the tag name(s) for each parameter */
dvander@27	5068	assert(sym->dim.arglist[arg].numtags>0);
dvander@27	5069	assert(sym->dim.arglist[arg].tags!=NULL);
dvander@27	5070	paraminfo=(sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0)
dvander@27	5071	\|\| sym->dim.arglist[arg].ident==iREFERENCE
dvander@27	5072	\|\| sym->dim.arglist[arg].ident==iREFARRAY;
dvander@27	5073	if (paraminfo)
dvander@27	5074	fprintf(log,"\t\t\t\t<paraminfo>");
dvander@27	5075	if (sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0) {
dvander@27	5076	assert(paraminfo);
dvander@27	5077	if (sym->dim.arglist[arg].numtags>1)
dvander@27	5078	fprintf(log," {");
dvander@27	5079	for (i=0; i<sym->dim.arglist[arg].numtags; i++) {
dvander@27	5080	if (i>0)
dvander@27	5081	fprintf(log,",");
dvander@27	5082	tagsym=find_tag_byval(sym->dim.arglist[arg].tags[i]);
dvander@27	5083	assert(tagsym!=NULL);
dvander@27	5084	fprintf(log,"%s",tagsym->name);
dvander@27	5085	} /* for */
dvander@27	5086	if (sym->dim.arglist[arg].numtags>1)
dvander@27	5087	fprintf(log,"}");
dvander@27	5088	} /* if */
dvander@27	5089	switch (sym->dim.arglist[arg].ident) {
dvander@27	5090	case iREFERENCE:
dvander@27	5091	fprintf(log," &");
dvander@27	5092	break;
dvander@27	5093	case iREFARRAY:
dvander@27	5094	fprintf(log," ");
dvander@27	5095	for (dim=0; dim<sym->dim.arglist[arg].numdim; dim++) {
dvander@27	5096	if (sym->dim.arglist[arg].dim[dim]==0) {
dvander@27	5097	fprintf(log,"[]");
dvander@27	5098	} else {
dvander@27	5099	//??? find index tag
dvander@27	5100	fprintf(log,"[%d]",sym->dim.arglist[arg].dim[dim]);
dvander@27	5101	} /* if */
dvander@27	5102	} /* for */
dvander@27	5103	break;
dvander@27	5104	} /* switch */
dvander@27	5105	if (paraminfo)
dvander@27	5106	fprintf(log," </paraminfo>\n");
dvander@27	5107	/* print the user description of the parameter (parse through
dvander@27	5108	* sym->documentation)
dvander@27	5109	*/
dvander@27	5110	if (sym->documentation!=NULL
dvander@27	5111	&& find_xmltag(sym->documentation, "param", "name", sym->dim.arglist[arg].name,
dvander@27	5112	&outer_start, &outer_length, &inner_start, &inner_length))
dvander@27	5113	{
dvander@27	5114	char *tail;
dvander@27	5115	fprintf(log,"\t\t\t\t%.*s\n",inner_length,inner_start);
dvander@27	5116	/* delete from documentation string */
dvander@27	5117	tail=outer_start+outer_length;
dvander@27	5118	memmove(outer_start,tail,strlen(tail)+1);
dvander@27	5119	} /* if */
dvander@27	5120	fprintf(log,"\t\t\t</param>\n");
dvander@27	5121	} /* for */
dvander@27	5122	if (sym->documentation!=NULL)
dvander@27	5123	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	5124	fprintf(log,"\t\t</member>\n");
dvander@27	5125	} /* for */
dvander@27	5126
dvander@27	5127	fprintf(log,"\n\t</members>\n");
dvander@27	5128	fprintf(log,"</doc>\n");
dvander@27	5129	}
dvander@27	5130	#endif
dvander@27	5131
dvander@27	5132	/* Every symbol has a referrer list, that contains the functions that use
dvander@27	5133	* the symbol. Now, if function "apple" is accessed by functions "banana" and
dvander@27	5134	* "citron", but neither function "banana" nor "citron" are used by anyone
dvander@27	5135	* else, then, by inference, function "apple" is not used either.
dvander@27	5136	*/
dvander@27	5137	static void reduce_referrers(symbol *root)
dvander@27	5138	{
dvander@27	5139	int i,restart;
dvander@27	5140	symbol sym,ref;
dvander@27	5141
dvander@27	5142	do {
dvander@27	5143	restart=0;
dvander@27	5144	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	5145	if (sym->parent!=NULL)
dvander@27	5146	continue; /* hierarchical data type */
dvander@27	5147	if (sym->ident==iFUNCTN
dvander@27	5148	&& (sym->usage & uNATIVE)==0
dvander@27	5149	&& (sym->usage & uPUBLIC)==0 && strcmp(sym->name,uMAINFUNC)!=0 && strcmp(sym->name,uENTRYFUNC)!=0
dvander@27	5150	&& count_referrers(sym)==0)
dvander@27	5151	{
dvander@27	5152	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	5153	/* find all symbols that are referred by this symbol */
dvander@27	5154	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	5155	if (ref->parent!=NULL)
dvander@27	5156	continue; /* hierarchical data type */
dvander@27	5157	assert(ref->refer!=NULL);
dvander@27	5158	for (i=0; i<ref->numrefers && ref->refer[i]!=sym; i++)
dvander@27	5159	/* nothing */;
dvander@27	5160	if (i<ref->numrefers) {
dvander@27	5161	assert(ref->refer[i]==sym);
dvander@27	5162	ref->refer[i]=NULL;
dvander@27	5163	restart++;
dvander@27	5164	} /* if */
dvander@27	5165	} /* for */
dvander@27	5166	} else if ((sym->ident==iVARIABLE \|\| sym->ident==iARRAY)
dvander@27	5167	&& (sym->usage & uPUBLIC)==0
dvander@27	5168	&& sym->parent==NULL
dvander@27	5169	&& count_referrers(sym)==0)
dvander@27	5170	{
dvander@27	5171	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	5172	} /* if */
dvander@27	5173	} /* for */
dvander@27	5174	/* after removing a symbol, check whether more can be removed */
dvander@27	5175	} while (restart>0);
dvander@27	5176	}
dvander@27	5177
dvander@27	5178	#if !defined SC_LIGHT
dvander@27	5179	static long max_stacksize_recurse(symbol sourcesym,symbol sym,long basesize,int pubfuncparams,int recursion)
dvander@27	5180	{
dvander@27	5181	long size,maxsize;
dvander@27	5182	int i;
dvander@27	5183
dvander@27	5184	assert(sym!=NULL);
dvander@27	5185	assert(sym->ident==iFUNCTN);
dvander@27	5186	assert((sym->usage & uNATIVE)==0);
dvander@27	5187	assert(recursion!=NULL);
dvander@27	5188
dvander@27	5189	maxsize=sym->x.stacksize;
dvander@27	5190	for (i=0; i<sym->numrefers; i++) {
dvander@27	5191	if (sym->refer[i]!=NULL) {
dvander@27	5192	assert(sym->refer[i]->ident==iFUNCTN);
dvander@27	5193	assert((sym->refer[i]->usage & uNATIVE)==0); /* a native function cannot refer to a user-function */
dvander@27	5194	if (sym->refer[i]==sourcesym) { /* recursion detection */
dvander@27	5195	*recursion=1;
dvander@27	5196	break; /* recursion was detected, quit loop */
dvander@27	5197	} /* if */
dvander@27	5198	size=max_stacksize_recurse(sourcesym,sym->refer[i],sym->x.stacksize,pubfuncparams,recursion);
dvander@27	5199	if (maxsize<size)
dvander@27	5200	maxsize=size;
dvander@27	5201	} /* if */
dvander@27	5202	} /* for */
dvander@27	5203
dvander@27	5204	if ((sym->usage & uPUBLIC)!=0) {
dvander@27	5205	/* Find out how many parameters a public function has, then see if this
dvander@27	5206	* is bigger than some maximum
dvander@27	5207	*/
dvander@27	5208	arginfo *arg=sym->dim.arglist;
dvander@27	5209	int count=0;
dvander@27	5210	assert(arg!=0);
dvander@27	5211	while (arg->ident!=0) {
dvander@27	5212	count++;
dvander@27	5213	arg++;
dvander@27	5214	} /* while */
dvander@27	5215	assert(pubfuncparams!=0);
dvander@27	5216	if (count>*pubfuncparams)
dvander@27	5217	*pubfuncparams=count;
dvander@27	5218	} /* if */
dvander@27	5219
dvander@27	5220	return maxsize+basesize;
dvander@27	5221	}
dvander@27	5222
dvander@1164	5223	static symbol *save_symbol;
dvander@1164	5224
dvander@27	5225	static long max_stacksize(symbol root,int recursion)
dvander@27	5226	{
dvander@27	5227	/* Loop over all non-native functions. For each function, loop
dvander@27	5228	* over all of its referrers, accumulating the stack requirements.
dvander@27	5229	* Detect (indirect) recursion with a "mark-and-sweep" algorithm.
dvander@27	5230	* I (mis-)use the "compound" field of the symbol structure for
dvander@27	5231	* the marker, as this field is unused for functions.
dvander@27	5232	*
dvander@27	5233	* Note that the stack is shared with the heap. A host application
dvander@27	5234	* may "eat" cells from the heap as well, through amx_Allot(). The
dvander@27	5235	* stack requirements are thus only an estimate.
dvander@27	5236	*/
dvander@27	5237	long size,maxsize;
dvander@27	5238	int maxparams;
dvander@27	5239	symbol *sym;
dvander@27	5240
dvander@27	5241	assert(root!=NULL);
dvander@27	5242	assert(recursion!=NULL);
dvander@27	5243	#if !defined NDEBUG
dvander@27	5244	for (sym=root->next; sym!=NULL; sym=sym->next)
dvander@27	5245	if (sym->ident==iFUNCTN)
dvander@27	5246	assert(sym->compound==0);
dvander@27	5247	#endif
dvander@27	5248
dvander@27	5249	maxsize=0;
dvander@27	5250	maxparams=0;
dvander@27	5251	recursion=0; / assume no recursion */
dvander@27	5252	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	5253	/* drop out if this is not a user-implemented function */
dvander@27	5254	if (sym->ident!=iFUNCTN \|\| (sym->usage & uNATIVE)!=0)
dvander@27	5255	continue;
dvander@27	5256	/* accumulate stack size for this symbol */
dvander@1164	5257	save_symbol = sym;
dvander@27	5258	size=max_stacksize_recurse(sym,sym,0L,&maxparams,recursion);
dvander@27	5259	assert(size>=0);
dvander@27	5260	if (maxsize<size)
dvander@27	5261	maxsize=size;
dvander@27	5262	} /* for */
dvander@27	5263
dvander@27	5264	maxsize++; /* +1 because a zero cell is always pushed on top
dvander@27	5265	* of the stack to catch stack overwrites */
dvander@27	5266	return maxsize+(maxparams+1);/* +1 because # of parameters is always pushed on entry */
dvander@27	5267	}
dvander@27	5268	#endif
dvander@27	5269
dvander@27	5270	/* testsymbols - test for unused local or global variables
dvander@27	5271	*
dvander@27	5272	* "Public" functions are excluded from the check, since these
dvander@27	5273	* may be exported to other object modules.
dvander@27	5274	* Labels are excluded from the check if the argument 'testlabs'
dvander@27	5275	* is 0. Thus, labels are not tested until the end of the function.
dvander@27	5276	* Constants may also be excluded (convenient for global constants).
dvander@27	5277	*
dvander@27	5278	* When the nesting level drops below "level", the check stops.
dvander@27	5279	*
dvander@27	5280	* The function returns whether there is an "entry" point for the file.
dvander@27	5281	* This flag will only be 1 when browsing the global symbol table.
dvander@27	5282	*/
dvander@27	5283	static int testsymbols(symbol *root,int level,int testlabs,int testconst)
dvander@27	5284	{
dvander@27	5285	char symname[2*sNAMEMAX+16];
dvander@27	5286	int entry=FALSE;
dvander@27	5287
dvander@27	5288	symbol *sym=root->next;
dvander@27	5289	while (sym!=NULL && sym->compound>=level) {
dvander@27	5290	switch (sym->ident) {
dvander@27	5291	case iLABEL:
dvander@27	5292	if (testlabs) {
dvander@27	5293	if ((sym->usage & uDEFINE)==0) {
dvander@27	5294	error(19,sym->name); /* not a label: ... */
dvander@27	5295	} else if ((sym->usage & uREAD)==0) {
dvander@27	5296	errorset(sSETPOS,sym->lnumber);
dvander@27	5297	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5298	} /* if */
dvander@27	5299	} /* if */
dvander@27	5300	break;
dvander@27	5301	case iFUNCTN:
dvander@27	5302	if ((sym->usage & (uDEFINE \| uREAD \| uNATIVE \| uSTOCK \| uPUBLIC))==uDEFINE) {
dvander@27	5303	funcdisplayname(symname,sym->name);
dvander@27	5304	if (strlen(symname)>0)
dvander@27	5305	error(203,symname); /* symbol isn't used ... (and not public/native/stock) */
dvander@27	5306	} /* if */
dvander@27	5307	if ((sym->usage & uPUBLIC)!=0 \|\| strcmp(sym->name,uMAINFUNC)==0)
dvander@27	5308	entry=TRUE; /* there is an entry point */
dvander@27	5309	/* also mark the function to the debug information */
dvander@27	5310	if (((sym->usage & uREAD)!=0 \|\| (sym->usage & uPUBLIC)!=0) && (sym->usage & uNATIVE)==0)
dvander@27	5311	insert_dbgsymbol(sym);
dvander@27	5312	break;
dvander@27	5313	case iCONSTEXPR:
dvander@27	5314	if (testconst && (sym->usage & uREAD)==0) {
dvander@27	5315	errorset(sSETPOS,sym->lnumber);
dvander@27	5316	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5317	} /* if */
dvander@27	5318	break;
dvander@27	5319	default:
dvander@27	5320	/* a variable */
dvander@27	5321	if (sym->parent!=NULL)
dvander@27	5322	break; /* hierarchical data type */
dvander@27	5323	if ((sym->usage & (uWRITTEN \| uREAD \| uSTOCK))==0) {
ds@876	5324	errorset(sSETPOS,sym->lnumber);
ds@876	5325	error(203,sym->name); /* symbol isn't used (and not stock) */
dvander@27	5326	} else if ((sym->usage & (uREAD \| uSTOCK \| uPUBLIC))==0) {
dvander@27	5327	errorset(sSETPOS,sym->lnumber);
dvander@27	5328	error(204,sym->name); /* value assigned to symbol is never used */
dvander@27	5329	#if 0 // ??? not sure whether it is a good idea to force people use "const"
dvander@27	5330	} else if ((sym->usage & (uWRITTEN \| uPUBLIC \| uCONST))==0 && sym->ident==iREFARRAY) {
dvander@27	5331	errorset(sSETPOS,sym->lnumber);
dvander@27	5332	error(214,sym->name); /* make array argument "const" */
dvander@27	5333	#endif
dvander@27	5334	} /* if */
dvander@27	5335	/* also mark the variable (local or global) to the debug information */
dvander@27	5336	if ((sym->usage & (uWRITTEN \| uREAD))!=0 && (sym->usage & uNATIVE)==0)
dvander@27	5337	insert_dbgsymbol(sym);
dvander@27	5338	} /* if */
dvander@27	5339	sym=sym->next;
dvander@27	5340	} /* while */
dvander@27	5341
dvander@27	5342	return entry;
dvander@27	5343	}
dvander@27	5344
dvander@27	5345	static cell calc_array_datasize(symbol sym, cell offset)
dvander@27	5346	{
dvander@27	5347	cell length;
dvander@27	5348
dvander@27	5349	assert(sym!=NULL);
dvander@27	5350	assert(sym->ident==iARRAY \|\| sym->ident==iREFARRAY);
dvander@27	5351	length=sym->dim.array.length;
dvander@27	5352	if (sym->dim.array.level > 0) {
dvander@27	5353	cell sublength=calc_array_datasize(finddepend(sym),offset);
dvander@27	5354	if (offset!=NULL)
dvander@27	5355	offset=length(*offset+sizeof(cell));
dvander@27	5356	if (sublength>0)
dvander@27	5357	length=lengthsublength;
dvander@27	5358	else
dvander@27	5359	length=0;
dvander@27	5360	} else {
dvander@27	5361	if (offset!=NULL)
dvander@27	5362	*offset=0;
dvander@27	5363	} /* if */
dvander@27	5364	return length;
dvander@27	5365	}
dvander@27	5366
dvander@27	5367	static void destructsymbols(symbol *root,int level)
dvander@27	5368	{
dvander@27	5369	cell offset=0;
dvander@27	5370	int savepri=FALSE;
dvander@27	5371	symbol *sym=root->next;
dvander@27	5372	while (sym!=NULL && sym->compound>=level) {
dvander@27	5373	if (sym->ident==iVARIABLE \|\| sym->ident==iARRAY) {
dvander@27	5374	char symbolname[16];
dvander@27	5375	symbol *opsym;
dvander@27	5376	cell elements;
dvander@27	5377	/* check that the '~' operator is defined for this tag */
dvander@27	5378	operator_symname(symbolname,"~",sym->tag,0,1,0);
dvander@27	5379	if ((opsym=findglb(symbolname,sGLOBAL))!=NULL) {
dvander@27	5380	/* save PRI, in case of a return statment */
dvander@27	5381	if (!savepri) {
dvander@27	5382	pushreg(sPRI); /* right-hand operand is in PRI */
dvander@27	5383	savepri=TRUE;
dvander@27	5384	} /* if */
dvander@27	5385	/* if the variable is an array, get the number of elements */
dvander@27	5386	if (sym->ident==iARRAY) {
dvander@27	5387	elements=calc_array_datasize(sym,&offset);
dvander@27	5388	/* "elements" can be zero when the variable is declared like
dvander@27	5389	* new mytag: myvar[2][] = { {1, 2}, {3, 4} }
dvander@27	5390	* one should declare all dimensions!
dvander@27	5391	*/
dvander@27	5392	if (elements==0)
dvander@27	5393	error(46,sym->name); /* array size is unknown */
dvander@27	5394	} else {
dvander@27	5395	elements=1;
dvander@27	5396	offset=0;
dvander@27	5397	} /* if */
dvander@27	5398	pushval(elements);
dvander@27	5399	/* call the '~' operator */
dvander@27	5400	address(sym,sPRI);
dvander@27	5401	addconst(offset); /* add offset to array data to the address */
dvander@27	5402	pushreg(sPRI);
dvander@101	5403	pushval(2 /* sizeof(cell)/ );/* 2 parameters */
dvander@27	5404	assert(opsym->ident==iFUNCTN);
dvander@27	5405	ffcall(opsym,NULL,1);
dvander@27	5406	if (sc_status!=statSKIP)
dvander@27	5407	markusage(opsym,uREAD); /* do not mark as "used" when this call itself is skipped */
dvander@27	5408	if ((opsym->usage & uNATIVE)!=0 && opsym->x.lib!=NULL)
dvander@27	5409	opsym->x.lib->value += 1; /* increment "usage count" of the library */
dvander@27	5410	} /* if */
dvander@27	5411	} /* if */
dvander@27	5412	sym=sym->next;
dvander@27	5413	} /* while */
dvander@27	5414	/* restore PRI, if it was saved */
dvander@27	5415	if (savepri)
dvander@27	5416	popreg(sPRI);
dvander@27	5417	}
dvander@27	5418
dvander@27	5419	static constvalue insert_constval(constvalue prev,constvalue next,const char name,cell val,
dvander@27	5420	int index)
dvander@27	5421	{
dvander@27	5422	constvalue *cur;
dvander@27	5423
dvander@27	5424	if ((cur=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	5425	error(123); /* insufficient memory (fatal error) */
dvander@27	5426	memset(cur,0,sizeof(constvalue));
dvander@27	5427	if (name!=NULL) {
dvander@27	5428	assert(strlen(name)<sNAMEMAX);
dvander@27	5429	strcpy(cur->name,name);
dvander@27	5430	} /* if */
dvander@27	5431	cur->value=val;
dvander@27	5432	cur->index=index;
dvander@27	5433	cur->next=next;
dvander@27	5434	prev->next=cur;
dvander@27	5435	return cur;
dvander@27	5436	}
dvander@27	5437
dvander@27	5438	SC_FUNC constvalue append_constval(constvalue table,const char *name,cell val,int index)
dvander@27	5439	{
dvander@27	5440	constvalue cur,prev;
dvander@27	5441
dvander@27	5442	/* find the end of the constant table */
dvander@27	5443	for (prev=table, cur=table->next; cur!=NULL; prev=cur, cur=cur->next)
dvander@27	5444	/* nothing */;
dvander@27	5445	return insert_constval(prev,NULL,name,val,index);
dvander@27	5446	}
dvander@27	5447
dvander@27	5448	SC_FUNC constvalue find_constval(constvalue table,char *name,int index)
dvander@27	5449	{
dvander@27	5450	constvalue *ptr = table->next;
dvander@27	5451
dvander@27	5452	while (ptr!=NULL) {
dvander@27	5453	if (strcmp(name,ptr->name)==0 && ptr->index==index)
dvander@27	5454	return ptr;
dvander@27	5455	ptr=ptr->next;
dvander@27	5456	} /* while */
dvander@27	5457	return NULL;
dvander@27	5458	}
dvander@27	5459
dvander@27	5460	static constvalue find_constval_byval(constvalue table,cell val)
dvander@27	5461	{
dvander@27	5462	constvalue *ptr = table->next;
dvander@27	5463
dvander@27	5464	while (ptr!=NULL) {
dvander@27	5465	if (ptr->value==val)
dvander@27	5466	return ptr;
dvander@27	5467	ptr=ptr->next;
dvander@27	5468	} /* while */
dvander@27	5469	return NULL;
dvander@27	5470	}
dvander@27	5471
dvander@27	5472	#if 0 /* never used */
dvander@27	5473	static int delete_constval(constvalue table,char name)
dvander@27	5474	{
dvander@27	5475	constvalue *prev = table;
dvander@27	5476	constvalue *cur = prev->next;
dvander@27	5477
dvander@27	5478	while (cur!=NULL) {
dvander@27	5479	if (strcmp(name,cur->name)==0) {
dvander@27	5480	prev->next=cur->next;
dvander@27	5481	free(cur);
dvander@27	5482	return TRUE;
dvander@27	5483	} /* if */
dvander@27	5484	prev=cur;
dvander@27	5485	cur=cur->next;
dvander@27	5486	} /* while */
dvander@27	5487	return FALSE;
dvander@27	5488	}
dvander@27	5489	#endif
dvander@27	5490
dvander@27	5491	SC_FUNC void delete_consttable(constvalue *table)
dvander@27	5492	{
dvander@27	5493	constvalue cur=table->next, next;
dvander@27	5494
dvander@27	5495	while (cur!=NULL) {
dvander@27	5496	next=cur->next;
dvander@27	5497	free(cur);
dvander@27	5498	cur=next;
dvander@27	5499	} /* while */
dvander@27	5500	memset(table,0,sizeof(constvalue));
dvander@27	5501	}
dvander@27	5502
dvander@27	5503	/* add_constant
dvander@27	5504	*
dvander@27	5505	* Adds a symbol to the symbol table. Returns NULL on failure.
dvander@27	5506	*/
dvander@27	5507	SC_FUNC symbol add_constant(char name,cell val,int vclass,int tag)
dvander@27	5508	{
dvander@27	5509	symbol *sym;
dvander@27	5510
dvander@27	5511	/* Test whether a global or local symbol with the same name exists. Since
dvander@27	5512	* constants are stored in the symbols table, this also finds previously
dvander@27	5513	* defind constants. */
dvander@27	5514	sym=findglb(name,sSTATEVAR);
dvander@27	5515	if (!sym)
dvander@27	5516	sym=findloc(name);
dvander@27	5517	if (sym) {
dvander@27	5518	int redef=0;
dvander@27	5519	if (sym->ident!=iCONSTEXPR)
dvander@27	5520	redef=1; /* redefinition a function/variable to a constant is not allowed */
dvander@27	5521	if ((sym->usage & uENUMFIELD)!=0) {
dvander@27	5522	/* enum field, special case if it has a different tag and the new symbol is also an enum field */
dvander@27	5523	constvalue *tagid;
dvander@27	5524	symbol *tagsym;
dvander@27	5525	if (sym->tag==tag)
dvander@27	5526	redef=1; /* enumeration field is redefined (same tag) */
dvander@27	5527	tagid=find_tag_byval(tag);
dvander@27	5528	if (tagid==NULL) {
dvander@27	5529	redef=1; /* new constant does not have a tag */
dvander@27	5530	} else {
dvander@27	5531	tagsym=findconst(tagid->name,NULL);
dvander@27	5532	if (tagsym==NULL \|\| (tagsym->usage & uENUMROOT)==0)
dvander@27	5533	redef=1; /* new constant is not an enumeration field */
dvander@27	5534	} /* if */
dvander@27	5535	/* in this particular case (enumeration field that is part of a different
dvander@27	5536	* enum, and non-conflicting with plain constants) we want to be able to
dvander@27	5537	* redefine it
dvander@27	5538	*/
dvander@27	5539	if (!redef)
dvander@27	5540	goto redef_enumfield;
dvander@27	5541	} else if (sym->tag!=tag) {
dvander@27	5542	redef=1; /* redefinition of a constant (non-enum) to a different tag is not allowed */
dvander@27	5543	} /* if */
dvander@27	5544	if (redef) {
dvander@27	5545	error(21,name); /* symbol already defined */
dvander@27	5546	return NULL;
dvander@27	5547	} else if (sym->addr!=val) {
dvander@27	5548	error(201,name); /* redefinition of constant (different value) */
dvander@27	5549	sym->addr=val; /* set new value */
dvander@27	5550	} /* if */
dvander@27	5551	/* silently ignore redefinitions of constants with the same value & tag */
dvander@27	5552	return sym;
dvander@27	5553	} /* if */
dvander@27	5554
dvander@27	5555	/* constant doesn't exist yet (or is allowed to be redefined) */
dvander@27	5556	redef_enumfield:
dvander@27	5557	sym=addsym(name,val,iCONSTEXPR,vclass,tag,uDEFINE);
dvander@27	5558	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	5559	if (sc_status == statIDLE)
dvander@27	5560	sym->usage \|= uPREDEF;
dvander@27	5561	return sym;
dvander@27	5562	}
dvander@27	5563
dvander@27	5564	/* statement - The Statement Parser
dvander@27	5565	*
dvander@27	5566	* This routine is called whenever the parser needs to know what statement
dvander@27	5567	* it encounters (i.e. whenever program syntax requires a statement).
dvander@27	5568	*/
dvander@27	5569	static void statement(int *lastindent,int allow_decl)
dvander@27	5570	{
faluco@62	5571	int tok,save;
dvander@27	5572	cell val;
dvander@27	5573	char *st;
dvander@27	5574
dvander@27	5575	if (!freading) {
dvander@27	5576	error(36); /* empty statement */
dvander@27	5577	return;
dvander@27	5578	} /* if */
dvander@27	5579	errorset(sRESET,0);
dvander@27	5580
dvander@27	5581	tok=lex(&val,&st);
dvander@27	5582	if (tok!='{') {
dvander@27	5583	insert_dbgline(fline);
dvander@27	5584	setline(TRUE);
dvander@27	5585	} /* if */
dvander@27	5586	/* lex() has set stmtindent */
dvander@27	5587	if (lastindent!=NULL && tok!=tLABEL) {
dvander@27	5588	if (lastindent>=0 && lastindent!=stmtindent && !indent_nowarn && sc_tabsize>0)
dvander@27	5589	error(217); /* loose indentation */
dvander@27	5590	*lastindent=stmtindent;
dvander@27	5591	indent_nowarn=FALSE; /* if warning was blocked, re-enable it */
dvander@27	5592	} /* if */
dvander@27	5593	switch (tok) {
dvander@27	5594	case 0:
dvander@27	5595	/* nothing */
dvander@27	5596	break;
dvander@27	5597	case tNEW:
dvander@27	5598	if (allow_decl) {
dvander@27	5599	autozero=1;
dvander@27	5600	declloc(FALSE);
dvander@27	5601	lastst=tNEW;
dvander@27	5602	} else {
dvander@27	5603	error(3); /* declaration only valid in a block */
dvander@27	5604	} /* if */
dvander@27	5605	break;
dvander@27	5606	case tDECL:
dvander@27	5607	if (allow_decl) {
dvander@27	5608	autozero=0;
dvander@27	5609	declloc(FALSE);
dvander@27	5610	lastst=tDECL;
dvander@27	5611	} else {
dvander@27	5612	error(3); /* declaration only valid in a block */
dvander@27	5613	} /* if */
dvander@27	5614	break;
dvander@27	5615	case tSTATIC:
dvander@27	5616	if (allow_decl) {
dvander@27	5617	declloc(TRUE);
dvander@27	5618	lastst=tNEW;
dvander@27	5619	} else {
dvander@27	5620	error(3); /* declaration only valid in a block */
dvander@27	5621	} /* if */
dvander@27	5622	break;
dvander@27	5623	case '{':
faluco@62	5624	case tBEGIN:
faluco@62	5625	save=fline;
dvander@27	5626	if (!matchtoken('}')) /* {} is the empty statement */
faluco@62	5627	compound(save==fline,tok);
dvander@27	5628	/* lastst (for "last statement") does not change */
dvander@27	5629	break;
dvander@27	5630	case ';':
dvander@27	5631	error(36); /* empty statement */
dvander@27	5632	break;
dvander@27	5633	case tIF:
faluco@62	5634	lastst=doif();
dvander@27	5635	break;
dvander@27	5636	case tWHILE:
faluco@62	5637	lastst=dowhile();
dvander@27	5638	break;
dvander@27	5639	case tDO:
faluco@62	5640	lastst=dodo();
dvander@27	5641	break;
dvander@27	5642	case tFOR:
faluco@62	5643	lastst=dofor();
dvander@27	5644	break;
dvander@27	5645	case tSWITCH:
dvander@27	5646	doswitch();
dvander@27	5647	lastst=tSWITCH;
dvander@27	5648	break;
dvander@27	5649	case tCASE:
dvander@27	5650	case tDEFAULT:
dvander@27	5651	error(14); /* not in switch */
dvander@27	5652	break;
dvander@27	5653	case tGOTO:
dvander@27	5654	dogoto();
dvander@27	5655	lastst=tGOTO;
dvander@27	5656	break;
dvander@27	5657	case tLABEL:
dvander@27	5658	dolabel();
dvander@27	5659	lastst=tLABEL;
dvander@27	5660	break;
dvander@27	5661	case tRETURN:
dvander@27	5662	doreturn();
dvander@27	5663	lastst=tRETURN;
dvander@27	5664	break;
dvander@27	5665	case tBREAK:
dvander@27	5666	dobreak();
dvander@27	5667	lastst=tBREAK;
dvander@27	5668	break;
dvander@27	5669	case tCONTINUE:
dvander@27	5670	docont();
dvander@27	5671	lastst=tCONTINUE;
dvander@27	5672	break;
dvander@27	5673	case tEXIT:
dvander@27	5674	doexit();
dvander@27	5675	lastst=tEXIT;
dvander@27	5676	break;
dvander@27	5677	case tASSERT:
dvander@27	5678	doassert();
dvander@27	5679	lastst=tASSERT;
dvander@27	5680	break;
dvander@27	5681	case tSLEEP:
dvander@27	5682	dosleep();
dvander@27	5683	lastst=tSLEEP;
dvander@27	5684	break;
dvander@27	5685	case tSTATE:
dvander@27	5686	dostate();
dvander@27	5687	lastst=tSTATE;
dvander@27	5688	break;
dvander@27	5689	case tCONST:
dvander@27	5690	decl_const(sLOCAL);
dvander@27	5691	break;
dvander@27	5692	case tENUM:
dvander@27	5693	decl_enum(sLOCAL);
dvander@27	5694	break;
dvander@27	5695	default: /* non-empty expression */
dvander@27	5696	sc_allowproccall=optproccall;
dvander@27	5697	lexpush(); /* analyze token later */
dvander@27	5698	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE);
dvander@27	5699	needtoken(tTERM);
dvander@27	5700	lastst=tEXPR;
dvander@27	5701	sc_allowproccall=FALSE;
dvander@27	5702	} /* switch */
dvander@27	5703	}
dvander@27	5704
faluco@62	5705	static void compound(int stmt_sameline,int starttok)
dvander@27	5706	{
dvander@27	5707	int indent=-1;
dvander@27	5708	cell save_decl=declared;
dvander@27	5709	int count_stmt=0;
dvander@27	5710	int block_start=fline; /* save line where the compound block started */
faluco@62	5711	int endtok;
dvander@27	5712
dvander@117	5713	pushstacklist();
dvander@118	5714	pushheaplist();
dvander@27	5715	/* if there is more text on this line, we should adjust the statement indent */
dvander@27	5716	if (stmt_sameline) {
dvander@27	5717	int i;
dvander@27	5718	const unsigned char *p=lptr;
dvander@27	5719	/* go back to the opening brace */
faluco@62	5720	while (*p!=starttok) {
dvander@27	5721	assert(p>pline);
dvander@27	5722	p--;
dvander@27	5723	} /* while */
faluco@62	5724	assert(p==starttok); / it should be found */
dvander@27	5725	/* go forward, skipping white-space */
dvander@27	5726	p++;
dvander@27	5727	while (p<=' ' && p!='\0')
dvander@27	5728	p++;
dvander@27	5729	assert(p!='\0'); / a token should be found */
dvander@27	5730	stmtindent=0;
dvander@27	5731	for (i=0; i<(int)(p-pline); i++)
dvander@27	5732	if (pline[i]=='\t' && sc_tabsize>0)
dvander@27	5733	stmtindent += (int)(sc_tabsize - (stmtindent+sc_tabsize) % sc_tabsize);
dvander@27	5734	else
dvander@27	5735	stmtindent++;
dvander@27	5736	} /* if */
dvander@27	5737
faluco@62	5738	endtok=(starttok=='{') ? '}' : tEND;
dvander@27	5739	nestlevel+=1; /* increase compound statement level */
faluco@62	5740	while (matchtoken(endtok)==0){/* repeat until compound statement is closed */
dvander@27	5741	if (!freading){
dvander@27	5742	error(30,block_start); /* compound block not closed at end of file */
dvander@27	5743	break;
dvander@27	5744	} else {
faluco@62	5745	if (count_stmt>0 && (lastst==tRETURN \|\| lastst==tBREAK \|\| lastst==tCONTINUE \|\| lastst==tENDLESS))
dvander@27	5746	error(225); /* unreachable code */
dvander@27	5747	statement(&indent,TRUE); /* do a statement */
dvander@27	5748	count_stmt++;
dvander@27	5749	} /* if */
dvander@27	5750	} /* while */
dvander@27	5751	if (lastst!=tRETURN)
dvander@27	5752	destructsymbols(&loctab,nestlevel);
dvander@117	5753	if (lastst!=tRETURN && lastst!=tGOTO) {
dvander@1472	5754	popheaplist();
dvander@459	5755	popstacklist(1);
dvander@459	5756	} else {
dvander@1472	5757	popheaplist();
dvander@459	5758	popstacklist(0);
dvander@117	5759	}
dvander@27	5760	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	5761	declared=save_decl;
dvander@27	5762	delete_symbols(&loctab,nestlevel,FALSE,TRUE); /* erase local symbols, but
dvander@27	5763	* retain block local labels
dvander@27	5764	* (within the function) */
dvander@27	5765	nestlevel-=1; /* decrease compound statement level */
dvander@27	5766	}
dvander@27	5767
dvander@27	5768	/* doexpr
dvander@27	5769	*
dvander@27	5770	* Global references: stgidx (referred to only)
dvander@27	5771	*/
dvander@27	5772	static int doexpr(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@27	5773	int tag,symbol *symptr,int chkfuncresult)
dvander@27	5774	{
dvander@152	5775	return doexpr2(comma,chkeffect,allowarray,mark_endexpr,tag,symptr,chkfuncresult,NULL);
dvander@152	5776	}
dvander@152	5777
dvander@152	5778	/* doexpr2
dvander@152	5779	*
dvander@152	5780	* Global references: stgidx (referred to only)
dvander@152	5781	*/
dvander@152	5782	static int doexpr2(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@152	5783	int tag,symbol symptr,int chkfuncresult,value lval)
dvander@152	5784	{
dvander@27	5785	int index,ident;
dvander@27	5786	int localstaging=FALSE;
dvander@27	5787	cell val;
dvander@27	5788
dvander@27	5789	if (!staging) {
dvander@27	5790	stgset(TRUE); /* start stage-buffering */
dvander@27	5791	localstaging=TRUE;
dvander@27	5792	assert(stgidx==0);
dvander@27	5793	} /* if */
dvander@27	5794	index=stgidx;
dvander@27	5795	errorset(sEXPRMARK,0);
dvander@27	5796	do {
dvander@27	5797	/* on second round through, mark the end of the previous expression */
dvander@27	5798	if (index!=stgidx)
dvander@27	5799	markexpr(sEXPR,NULL,0);
dvander@27	5800	sideeffect=FALSE;
dvander@152	5801	ident=expression(&val,tag,symptr,chkfuncresult,lval);
dvander@27	5802	if (!allowarray && (ident==iARRAY \|\| ident==iREFARRAY))
dvander@27	5803	error(33,"-unknown-"); /* array must be indexed */
dvander@27	5804	if (chkeffect && !sideeffect)
dvander@27	5805	error(215); /* expression has no effect */
dvander@27	5806	sc_allowproccall=FALSE; /* cannot use "procedure call" syntax anymore */
dvander@27	5807	} while (comma && matchtoken(',')); /* more? */
dvander@27	5808	if (mark_endexpr)
dvander@27	5809	markexpr(sEXPR,NULL,0); /* optionally, mark the end of the expression */
dvander@27	5810	errorset(sEXPRRELEASE,0);
dvander@27	5811	if (localstaging) {
dvander@27	5812	stgout(index);
dvander@27	5813	stgset(FALSE); /* stop staging */
dvander@27	5814	} /* if */
dvander@27	5815	return ident;
dvander@27	5816	}
dvander@27	5817
dvander@27	5818	/* constexpr
dvander@27	5819	*/
dvander@27	5820	SC_FUNC int constexpr(cell val,int tag,symbol **symptr)
dvander@27	5821	{
dvander@27	5822	int ident,index;
dvander@27	5823	cell cidx;
dvander@27	5824
dvander@27	5825	stgset(TRUE); /* start stage-buffering */
dvander@27	5826	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	5827	errorset(sEXPRMARK,0);
dvander@152	5828	ident=expression(val,tag,symptr,FALSE,NULL);
dvander@27	5829	stgdel(index,cidx); /* scratch generated code */
dvander@27	5830	stgset(FALSE); /* stop stage-buffering */
dvander@27	5831	if (ident!=iCONSTEXPR) {
dvander@27	5832	error(8); /* must be constant expression */
dvander@27	5833	if (val!=NULL)
dvander@27	5834	*val=0;
dvander@27	5835	if (tag!=NULL)
dvander@27	5836	*tag=0;
dvander@27	5837	if (symptr!=NULL)
dvander@27	5838	*symptr=NULL;
dvander@27	5839	} /* if */
dvander@27	5840	errorset(sEXPRRELEASE,0);
dvander@27	5841	return (ident==iCONSTEXPR);
dvander@27	5842	}
dvander@27	5843
dvander@27	5844	/* test
dvander@27	5845	*
dvander@27	5846	* In the case a "simple assignment" operator ("=") is used within a test,
dvander@27	5847	* the warning "possibly unintended assignment" is displayed. This routine
dvander@27	5848	* sets the global variable "sc_intest" to true, it is restored upon termination.
ds@1265	5849	* In the case the assignment was intended, use parentheses around the
dvander@27	5850	* expression to avoid the warning; primary() sets "sc_intest" to 0.
dvander@27	5851	*
dvander@27	5852	* Global references: sc_intest (altered, but restored upon termination)
dvander@27	5853	*/
faluco@62	5854	static int test(int label,int parens,int invert)
dvander@27	5855	{
dvander@27	5856	int index,tok;
dvander@27	5857	cell cidx;
dvander@27	5858	int ident,tag;
faluco@62	5859	int endtok;
dvander@27	5860	cell constval;
dvander@27	5861	symbol *sym;
dvander@27	5862	int localstaging=FALSE;
dvander@27	5863
dvander@27	5864	if (!staging) {
dvander@27	5865	stgset(TRUE); /* start staging */
dvander@27	5866	localstaging=TRUE;
dvander@27	5867	#if !defined NDEBUG
dvander@27	5868	stgget(&index,&cidx); /* should start at zero if started locally */
dvander@27	5869	assert(index==0);
dvander@27	5870	#endif
dvander@27	5871	} /* if */
dvander@27	5872
dvander@27	5873	PUSHSTK_I(sc_intest);
dvander@27	5874	sc_intest=TRUE;
faluco@62	5875	endtok=0;
faluco@62	5876	if (parens!=TEST_PLAIN) {
faluco@62	5877	if (matchtoken('('))
faluco@62	5878	endtok=')';
faluco@62	5879	else if (parens==TEST_THEN)
faluco@62	5880	endtok=tTHEN;
faluco@62	5881	else if (parens==TEST_DO)
faluco@62	5882	endtok=tDO;
faluco@62	5883	} /* if */
dvander@27	5884	do {
dvander@27	5885	stgget(&index,&cidx); /* mark position (of last expression) in
dvander@27	5886	* code generator */
dvander@152	5887	ident=expression(&constval,&tag,&sym,TRUE,NULL);
dvander@27	5888	tok=matchtoken(',');
dvander@27	5889	if (tok)
dvander@27	5890	markexpr(sEXPR,NULL,0);
dvander@27	5891	} while (tok); /* do */
faluco@62	5892	if (endtok!=0)
faluco@62	5893	needtoken(endtok);
dvander@27	5894	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	5895	char *ptr=(sym->name!=NULL) ? sym->name : "-unknown-";
dvander@27	5896	error(33,ptr); /* array must be indexed */
dvander@27	5897	} /* if */
dvander@27	5898	if (ident==iCONSTEXPR) { /* constant expression */
faluco@62	5899	int testtype=0;
dvander@27	5900	sc_intest=(short)POPSTK_I();/* restore stack */
dvander@27	5901	stgdel(index,cidx);
dvander@27	5902	if (constval) { /* code always executed */
dvander@27	5903	error(206); /* redundant test: always non-zero */
faluco@62	5904	testtype=tENDLESS;
dvander@27	5905	} else {
dvander@27	5906	error(205); /* redundant code: never executed */
dvander@27	5907	jumplabel(label);
dvander@27	5908	} /* if */
dvander@27	5909	if (localstaging) {
dvander@27	5910	stgout(0); /* write "jumplabel" code */
dvander@27	5911	stgset(FALSE); /* stop staging */
dvander@27	5912	} /* if */
faluco@62	5913	return testtype;
dvander@27	5914	} /* if */
dvander@27	5915	if (tag!=0 && tag!=pc_addtag("bool"))
dvander@27	5916	if (check_userop(lneg,tag,0,1,NULL,&tag))
dvander@27	5917	invert= !invert; /* user-defined ! operator inverted result */
dvander@27	5918	if (invert)
dvander@27	5919	jmp_ne0(label); /* jump to label if true (different from 0) */
dvander@27	5920	else
dvander@27	5921	jmp_eq0(label); /* jump to label if false (equal to 0) */
dvander@27	5922	markexpr(sEXPR,NULL,0); /* end expression (give optimizer a chance) */
dvander@27	5923	sc_intest=(short)POPSTK_I(); /* double typecast to avoid warning with Microsoft C */
dvander@27	5924	if (localstaging) {
dvander@27	5925	stgout(0); /* output queue from the very beginning (see
dvander@27	5926	* assert() when localstaging is set to TRUE) */
dvander@27	5927	stgset(FALSE); /* stop staging */
dvander@27	5928	} /* if */
faluco@62	5929	return 0;
dvander@27	5930	}
dvander@27	5931
faluco@62	5932	static int doif(void)
dvander@27	5933	{
dvander@27	5934	int flab1,flab2;
dvander@27	5935	int ifindent;
faluco@62	5936	int lastst_true;
dvander@27	5937
dvander@27	5938	ifindent=stmtindent; /* save the indent of the "if" instruction */
dvander@27	5939	flab1=getlabel(); /* get label number for false branch */
faluco@62	5940	test(flab1,TEST_THEN,FALSE); /* get expression, branch to flab1 if false */
dvander@27	5941	statement(NULL,FALSE); /* if true, do a statement */
faluco@62	5942	if (!matchtoken(tELSE)) { /* if...else ? */
dvander@27	5943	setlabel(flab1); /* no, simple if..., print false label */
dvander@27	5944	} else {
faluco@62	5945	lastst_true=lastst; /* save last statement of the "true" branch */
dvander@27	5946	/* to avoid the "dangling else" error, we want a warning if the "else"
dvander@27	5947	* has a lower indent than the matching "if" */
dvander@27	5948	if (stmtindent<ifindent && sc_tabsize>0)
dvander@27	5949	error(217); /* loose indentation */
dvander@27	5950	flab2=getlabel();
dvander@27	5951	if ((lastst!=tRETURN) && (lastst!=tGOTO))
faluco@62	5952	jumplabel(flab2); /* "true" branch jumps around "else" clause, unless the "true" branch statement already jumped */
dvander@27	5953	setlabel(flab1); /* print false label */
dvander@27	5954	statement(NULL,FALSE); /* do "else" clause */
dvander@27	5955	setlabel(flab2); /* print true label */
faluco@62	5956	/* if both the "true" branch and the "false" branch ended with the same
faluco@62	5957	* kind of statement, set the last statement id to that kind, rather than
faluco@62	5958	* to the generic tIF; this allows for better "unreachable code" checking
faluco@62	5959	*/
faluco@62	5960	if (lastst==lastst_true)
faluco@62	5961	return lastst;
faluco@62	5962	} /* if */
faluco@62	5963	return tIF;
dvander@27	5964	}
dvander@27	5965
faluco@62	5966	static int dowhile(void)
dvander@27	5967	{
dvander@27	5968	int wq[wqSIZE]; /* allocate local queue */
faluco@62	5969	int save_endlessloop,retcode;
faluco@62	5970
faluco@62	5971	save_endlessloop=endlessloop;
dvander@27	5972	addwhile(wq); /* add entry to queue for "break" */
dvander@27	5973	setlabel(wq[wqLOOP]); /* loop label */
dvander@27	5974	/* The debugger uses the "break" opcode to be able to "break" out of
dvander@27	5975	* a loop. To make sure that each loop has a break opcode, even for the
dvander@27	5976	* tiniest loop, set it below the top of the loop
dvander@27	5977	*/
dvander@27	5978	setline(TRUE);
faluco@62	5979	endlessloop=test(wq[wqEXIT],TEST_DO,FALSE);/* branch to wq[wqEXIT] if false */
dvander@27	5980	statement(NULL,FALSE); /* if so, do a statement */
dvander@27	5981	jumplabel(wq[wqLOOP]); /* and loop to "while" start */
dvander@27	5982	setlabel(wq[wqEXIT]); /* exit label */
dvander@27	5983	delwhile(); /* delete queue entry */
faluco@62	5984
faluco@62	5985	retcode=endlessloop ? tENDLESS : tWHILE;
faluco@62	5986	endlessloop=save_endlessloop;
faluco@62	5987	return retcode;
dvander@27	5988	}
dvander@27	5989
dvander@27	5990	/*
dvander@27	5991	* Note that "continue" will in this case not jump to the top of the loop, but
dvander@27	5992	* to the end: just before the TRUE-or-FALSE testing code.
dvander@27	5993	*/
faluco@62	5994	static int dodo(void)
dvander@27	5995	{
dvander@27	5996	int wq[wqSIZE],top;
faluco@62	5997	int save_endlessloop,retcode;
faluco@62	5998
faluco@62	5999	save_endlessloop=endlessloop;
dvander@27	6000	addwhile(wq); /* see "dowhile" for more info */
dvander@27	6001	top=getlabel(); /* make a label first */
dvander@27	6002	setlabel(top); /* loop label */
dvander@27	6003	statement(NULL,FALSE);
dvander@27	6004	needtoken(tWHILE);
dvander@27	6005	setlabel(wq[wqLOOP]); /* "continue" always jumps to WQLOOP. */
dvander@27	6006	setline(TRUE);
faluco@62	6007	endlessloop=test(wq[wqEXIT],TEST_OPT,FALSE);
dvander@27	6008	jumplabel(top);
dvander@27	6009	setlabel(wq[wqEXIT]);
dvander@27	6010	delwhile();
dvander@27	6011	needtoken(tTERM);
faluco@62	6012
faluco@62	6013	retcode=endlessloop ? tENDLESS : tDO;
faluco@62	6014	endlessloop=save_endlessloop;
faluco@62	6015	return retcode;
dvander@27	6016	}
dvander@27	6017
faluco@62	6018	static int dofor(void)
dvander@27	6019	{
dvander@27	6020	int wq[wqSIZE],skiplab;
dvander@27	6021	cell save_decl;
faluco@62	6022	int save_nestlevel,save_endlessloop;
faluco@62	6023	int index,endtok;
dvander@27	6024	int *ptr;
dvander@27	6025
dvander@27	6026	save_decl=declared;
dvander@27	6027	save_nestlevel=nestlevel;
faluco@62	6028	save_endlessloop=endlessloop;
dvander@117	6029	pushstacklist();
dvander@117	6030
dvander@27	6031	addwhile(wq);
dvander@27	6032	skiplab=getlabel();
faluco@62	6033	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	6034	if (matchtoken(';')==0) {
dvander@27	6035	/* new variable declarations are allowed here */
dvander@27	6036	if (matchtoken(tNEW)) {
dvander@27	6037	/* The variable in expr1 of the for loop is at a
dvander@27	6038	* 'compound statement' level of it own.
dvander@27	6039	*/
dvander@27	6040	nestlevel++;
faluco@63	6041	autozero=1;
dvander@27	6042	declloc(FALSE); /* declare local variable */
dvander@27	6043	} else {
dvander@27	6044	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 1 */
dvander@27	6045	needtoken(';');
dvander@27	6046	} /* if */
dvander@27	6047	} /* if */
dvander@27	6048	/* Adjust the "declared" field in the "while queue", in case that
dvander@27	6049	* local variables were declared in the first expression of the
dvander@27	6050	* "for" loop. These are deleted in separately, so a "break" or a "continue"
dvander@27	6051	* must ignore these fields.
dvander@27	6052	*/
dvander@27	6053	ptr=readwhile();
dvander@27	6054	assert(ptr!=NULL);
dvander@117	6055	/*ptr[wqBRK]=(int)declared;
dvander@117	6056	*ptr[wqCONT]=(int)declared;
dvander@117	6057	*/
dvander@117	6058	ptr[wqBRK] = stackusage->list_id;
dvander@117	6059	ptr[wqCONT] = stackusage->list_id;
dvander@27	6060	jumplabel(skiplab); /* skip expression 3 1st time */
dvander@27	6061	setlabel(wq[wqLOOP]); /* "continue" goes to this label: expr3 */
dvander@27	6062	setline(TRUE);
dvander@27	6063	/* Expressions 2 and 3 are reversed in the generated code: expression 3
dvander@27	6064	* precedes expression 2. When parsing, the code is buffered and marks for
dvander@27	6065	* the start of each expression are insterted in the buffer.
dvander@27	6066	*/
dvander@27	6067	assert(!staging);
dvander@27	6068	stgset(TRUE); /* start staging */
dvander@27	6069	assert(stgidx==0);
dvander@27	6070	index=stgidx;
dvander@27	6071	stgmark(sSTARTREORDER);
dvander@27	6072	stgmark((char)(sEXPRSTART+0)); /* mark start of 2nd expression in stage */
dvander@27	6073	setlabel(skiplab); /* jump to this point after 1st expression */
faluco@62	6074	if (matchtoken(';')) {
faluco@62	6075	endlessloop=1;
faluco@62	6076	} else {
faluco@62	6077	endlessloop=test(wq[wqEXIT],TEST_PLAIN,FALSE);/* expression 2 (jump to wq[wqEXIT] if false) */
dvander@27	6078	needtoken(';');
dvander@27	6079	} /* if */
dvander@27	6080	stgmark((char)(sEXPRSTART+1)); /* mark start of 3th expression in stage */
faluco@62	6081	if (!matchtoken(endtok)) {
dvander@27	6082	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 3 */
faluco@62	6083	needtoken(endtok);
dvander@27	6084	} /* if */
dvander@27	6085	stgmark(sENDREORDER); /* mark end of reversed evaluation */
dvander@27	6086	stgout(index);
dvander@27	6087	stgset(FALSE); /* stop staging */
dvander@27	6088	statement(NULL,FALSE);
dvander@27	6089	jumplabel(wq[wqLOOP]);
dvander@27	6090	setlabel(wq[wqEXIT]);
dvander@27	6091	delwhile();
dvander@27	6092
dvander@27	6093	assert(nestlevel>=save_nestlevel);
dvander@27	6094	if (nestlevel>save_nestlevel) {
dvander@27	6095	/* Clean up the space and the symbol table for the local
dvander@27	6096	* variable in "expr1".
dvander@27	6097	*/
dvander@27	6098	destructsymbols(&loctab,nestlevel);
dvander@459	6099	popstacklist(1);
dvander@27	6100	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	6101	declared=save_decl;
dvander@27	6102	delete_symbols(&loctab,nestlevel,FALSE,TRUE);
dvander@27	6103	nestlevel=save_nestlevel; /* reset 'compound statement' nesting level */
dvander@754	6104	} else {
dvander@754	6105	popstacklist(0);
dvander@27	6106	} /* if */
faluco@62	6107
faluco@62	6108	index=endlessloop ? tENDLESS : tFOR;
faluco@62	6109	endlessloop=save_endlessloop;
faluco@62	6110	return index;
dvander@27	6111	}
dvander@27	6112
dvander@27	6113	/* The switch statement is incompatible with its C sibling:
dvander@27	6114	* 1. the cases are not drop through
dvander@27	6115	* 2. only one instruction may appear below each case, use a compound
dvander@27	6116	* instruction to execute multiple instructions
dvander@27	6117	* 3. the "case" keyword accepts a comma separated list of values to
dvander@117	6118	* match
dvander@27	6119	*
dvander@27	6120	* SWITCH param
dvander@27	6121	* PRI = expression result
dvander@27	6122	* param = table offset (code segment)
dvander@27	6123	*
dvander@27	6124	*/
dvander@27	6125	static void doswitch(void)
dvander@27	6126	{
dvander@27	6127	int lbl_table,lbl_exit,lbl_case;
faluco@62	6128	int swdefault,casecount;
faluco@62	6129	int tok,endtok;
dvander@27	6130	cell val;
dvander@27	6131	char *str;
dvander@27	6132	constvalue caselist = { NULL, "", 0, 0}; /* case list starts empty */
dvander@27	6133	constvalue cse,csp;
dvander@27	6134	char labelname[sNAMEMAX+1];
dvander@27	6135
faluco@62	6136	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	6137	doexpr(TRUE,FALSE,FALSE,FALSE,NULL,NULL,TRUE);/* evaluate switch expression */
faluco@62	6138	needtoken(endtok);
dvander@27	6139	/* generate the code for the switch statement, the label is the address
dvander@27	6140	* of the case table (to be generated later).
dvander@27	6141	*/
dvander@27	6142	lbl_table=getlabel();
dvander@27	6143	lbl_case=0; /* just to avoid a compiler warning */
dvander@27	6144	ffswitch(lbl_table);
dvander@27	6145
faluco@62	6146	if (matchtoken(tBEGIN)) {
faluco@62	6147	endtok=tEND;
faluco@62	6148	} else {
faluco@62	6149	endtok='}';
faluco@62	6150	needtoken('{');
faluco@62	6151	} /* if */
dvander@27	6152	lbl_exit=getlabel(); /* get label number for jumping out of switch */
dvander@27	6153	swdefault=FALSE;
dvander@27	6154	casecount=0;
dvander@27	6155	do {
dvander@27	6156	tok=lex(&val,&str); /* read in (new) token */
dvander@27	6157	switch (tok) {
dvander@27	6158	case tCASE:
dvander@27	6159	if (swdefault!=FALSE)
dvander@27	6160	error(15); /* "default" case must be last in switch statement */
dvander@27	6161	lbl_case=getlabel();
dvander@27	6162	PUSHSTK_I(sc_allowtags);
dvander@27	6163	sc_allowtags=FALSE; /* do not allow tagnames here */
dvander@27	6164	do {
dvander@27	6165	casecount++;
dvander@27	6166
dvander@27	6167	/* ??? enforce/document that, in a switch, a statement cannot start
dvander@27	6168	* with a label. Then, you can search for:
dvander@27	6169	* * the first semicolon (marks the end of a statement)
dvander@27	6170	* * an opening brace (marks the start of a compound statement)
dvander@27	6171	* and search for the right-most colon before that statement
dvander@27	6172	* Now, by replacing the ':' by a special COLON token, you can
dvander@27	6173	* parse all expressions until that special token.
dvander@27	6174	*/
dvander@27	6175
dvander@27	6176	constexpr(&val,NULL,NULL);
dvander@27	6177	/* Search the insertion point (the table is kept in sorted order, so
dvander@27	6178	* that advanced abstract machines can sift the case table with a
dvander@27	6179	* binary search). Check for duplicate case values at the same time.
dvander@27	6180	*/
dvander@27	6181	for (csp=&caselist, cse=caselist.next;
dvander@27	6182	cse!=NULL && cse->value<val;
dvander@27	6183	csp=cse, cse=cse->next)
dvander@27	6184	/* nothing */;
dvander@27	6185	if (cse!=NULL && cse->value==val)
dvander@27	6186	error(40,val); /* duplicate "case" label */
dvander@27	6187	/* Since the label is stored as a string in the "constvalue", the
dvander@27	6188	* size of an identifier must be at least 8, as there are 8
dvander@27	6189	* hexadecimal digits in a 32-bit number.
dvander@27	6190	*/
dvander@27	6191	#if sNAMEMAX < 8
dvander@27	6192	#error Length of identifier (sNAMEMAX) too small.
dvander@27	6193	#endif
dvander@27	6194	assert(csp!=NULL);
dvander@27	6195	assert(csp->next==cse);
dvander@27	6196	insert_constval(csp,cse,itoh(lbl_case),val,0);
dvander@27	6197	if (matchtoken(tDBLDOT)) {
dvander@101	6198	error(1, ":", "..");
dvander@27	6199	} /* if */
dvander@27	6200	} while (matchtoken(','));
dvander@27	6201	needtoken(':'); /* ':' ends the case */
dvander@27	6202	sc_allowtags=(short)POPSTK_I(); /* reset */
dvander@27	6203	setlabel(lbl_case);
dvander@27	6204	statement(NULL,FALSE);
dvander@27	6205	jumplabel(lbl_exit);
dvander@27	6206	break;
dvander@27	6207	case tDEFAULT:
dvander@27	6208	if (swdefault!=FALSE)
dvander@27	6209	error(16); /* multiple defaults in switch */
dvander@27	6210	lbl_case=getlabel();
dvander@27	6211	setlabel(lbl_case);
dvander@27	6212	needtoken(':');
dvander@27	6213	swdefault=TRUE;
dvander@27	6214	statement(NULL,FALSE);
dvander@27	6215	/* Jump to lbl_exit, even thouh this is the last clause in the
dvander@27	6216	* switch, because the jump table is generated between the last
dvander@27	6217	* clause of the switch and the exit label.
dvander@27	6218	*/
dvander@27	6219	jumplabel(lbl_exit);
dvander@27	6220	break;
dvander@27	6221	default:
faluco@62	6222	if (tok!=endtok) {
faluco@62	6223	error(2);
faluco@62	6224	indent_nowarn=TRUE; /* disable this check */
faluco@62	6225	tok=endtok; /* break out of the loop after an error */
faluco@62	6226	} /* if */
dvander@27	6227	} /* switch */
faluco@62	6228	} while (tok!=endtok);
dvander@27	6229
dvander@27	6230	#if !defined NDEBUG
dvander@27	6231	/* verify that the case table is sorted (unfortunatly, duplicates can
dvander@27	6232	* occur; there really shouldn't be duplicate cases, but the compiler
dvander@27	6233	* may not crash or drop into an assertion for a user error). */
dvander@27	6234	for (cse=caselist.next; cse!=NULL && cse->next!=NULL; cse=cse->next)
dvander@27	6235	assert(cse->value <= cse->next->value);
dvander@27	6236	#endif
dvander@27	6237	/* generate the table here, before lbl_exit (general jump target) */
dvander@27	6238	setlabel(lbl_table);
dvander@27	6239	assert(swdefault==FALSE \|\| swdefault==TRUE);
dvander@27	6240	if (swdefault==FALSE) {
dvander@27	6241	/* store lbl_exit as the "none-matched" label in the switch table */
dvander@27	6242	strcpy(labelname,itoh(lbl_exit));
dvander@27	6243	} else {
dvander@27	6244	/* lbl_case holds the label of the "default" clause */
dvander@27	6245	strcpy(labelname,itoh(lbl_case));
dvander@27	6246	} /* if */
dvander@27	6247	ffcase(casecount,labelname,TRUE);
dvander@27	6248	/* generate the rest of the table */
dvander@27	6249	for (cse=caselist.next; cse!=NULL; cse=cse->next)
dvander@27	6250	ffcase(cse->value,cse->name,FALSE);
dvander@27	6251
dvander@27	6252	setlabel(lbl_exit);
dvander@27	6253	delete_consttable(&caselist); /* clear list of case labels */
dvander@27	6254	}
dvander@27	6255
dvander@27	6256	static void doassert(void)
dvander@27	6257	{
dvander@27	6258	int flab1,index;
dvander@27	6259	cell cidx;
dvander@27	6260
dvander@27	6261	if ((sc_debug & sCHKBOUNDS)!=0) {
dvander@27	6262	flab1=getlabel(); /* get label number for "OK" branch */
faluco@62	6263	test(flab1,TEST_PLAIN,TRUE);/* get expression and branch to flab1 if true */
dvander@27	6264	insert_dbgline(fline); /* make sure we can find the correct line number */
dvander@27	6265	ffabort(xASSERTION);
dvander@27	6266	setlabel(flab1);
dvander@27	6267	} else {
dvander@27	6268	stgset(TRUE); /* start staging */
dvander@27	6269	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	6270	do {
dvander@152	6271	expression(NULL,NULL,NULL,FALSE,NULL);
dvander@27	6272	stgdel(index,cidx); /* just scrap the code */
dvander@27	6273	} while (matchtoken(','));
dvander@27	6274	stgset(FALSE); /* stop staging */
dvander@27	6275	} /* if */
dvander@27	6276	needtoken(tTERM);
dvander@27	6277	}
dvander@27	6278
dvander@27	6279	static void dogoto(void)
dvander@27	6280	{
dvander@27	6281	char *st;
dvander@27	6282	cell val;
dvander@27	6283	symbol *sym;
dvander@27	6284
faluco@62	6285	/* if we were inside an endless loop, assume that we jump out of it */
faluco@62	6286	endlessloop=0;
faluco@62	6287
dvander@2202	6288	error(4, "goto");
dvander@2202	6289
dvander@27	6290	if (lex(&val,&st)==tSYMBOL) {
dvander@27	6291	sym=fetchlab(st);
dvander@27	6292	jumplabel((int)sym->addr);
dvander@27	6293	sym->usage\|=uREAD; /* set "uREAD" bit */
dvander@27	6294	// ??? if the label is defined (check sym->usage & uDEFINE), check
dvander@27	6295	// sym->compound (nesting level of the label) against nestlevel;
dvander@27	6296	// if sym->compound < nestlevel, call the destructor operator
dvander@27	6297	} else {
dvander@27	6298	error(20,st); /* illegal symbol name */
dvander@27	6299	} /* if */
dvander@27	6300	needtoken(tTERM);
dvander@27	6301	}
dvander@27	6302
dvander@27	6303	static void dolabel(void)
dvander@27	6304	{
dvander@27	6305	char *st;
dvander@27	6306	cell val;
dvander@27	6307	symbol *sym;
dvander@27	6308
dvander@27	6309	tokeninfo(&val,&st); /* retrieve label name again */
dvander@27	6310	if (find_constval(&tagname_tab,st,0)!=NULL)
dvander@27	6311	error(221,st); /* label name shadows tagname */
dvander@27	6312	sym=fetchlab(st);
dvander@27	6313	setlabel((int)sym->addr);
dvander@27	6314	/* since one can jump around variable declarations or out of compound
dvander@27	6315	* blocks, the stack must be manually adjusted
dvander@27	6316	*/
dvander@117	6317	//:TODO: This is actually generated, egads!
dvander@117	6318	//We have to support this and LCTRL/SCTRL
dvander@27	6319	setstk(-declared*sizeof(cell));
dvander@27	6320	sym->usage\|=uDEFINE; /* label is now defined */
dvander@27	6321	}
dvander@27	6322
dvander@27	6323	/* fetchlab
dvander@27	6324	*
dvander@27	6325	* Finds a label from the (local) symbol table or adds one to it.
dvander@27	6326	* Labels are local in scope.
dvander@27	6327	*
dvander@27	6328	* Note: The "_usage" bit is set to zero. The routines that call "fetchlab()"
dvander@27	6329	* must set this bit accordingly.
dvander@27	6330	*/
dvander@27	6331	static symbol fetchlab(char name)
dvander@27	6332	{
dvander@27	6333	symbol *sym;
dvander@27	6334
dvander@27	6335	sym=findloc(name); /* labels are local in scope */
dvander@27	6336	if (sym){
dvander@27	6337	if (sym->ident!=iLABEL)
dvander@27	6338	error(19,sym->name); /* not a label: ... */
dvander@27	6339	} else {
dvander@27	6340	sym=addsym(name,getlabel(),iLABEL,sLOCAL,0,0);
dvander@27	6341	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	6342	sym->x.declared=(int)declared;
dvander@27	6343	sym->compound=nestlevel;
dvander@27	6344	} /* if */
dvander@27	6345	return sym;
dvander@27	6346	}
dvander@27	6347
dvander@27	6348	/* doreturn
dvander@27	6349	*
dvander@27	6350	* Global references: rettype (altered)
dvander@27	6351	*/
dvander@27	6352	static void doreturn(void)
dvander@27	6353	{
dvander@27	6354	int tag,ident;
dvander@27	6355	int level;
dvander@27	6356	symbol sym,sub;
dvander@27	6357
dvander@27	6358	if (!matchtoken(tTERM)) {
dvander@27	6359	/* "return <value>" */
dvander@27	6360	if ((rettype & uRETNONE)!=0)
dvander@27	6361	error(78); /* mix "return;" and "return value;" */
dvander@103	6362	ident=doexpr(TRUE,FALSE,TRUE,FALSE,&tag,&sym,TRUE);
dvander@27	6363	needtoken(tTERM);
dvander@27	6364	/* see if this function already has a sub type (an array attached) */
dvander@27	6365	sub=finddepend(curfunc);
dvander@27	6366	assert(sub==NULL \|\| sub->ident==iREFARRAY);
dvander@27	6367	if ((rettype & uRETVALUE)!=0) {
dvander@27	6368	int retarray=(ident==iARRAY \|\| ident==iREFARRAY);
dvander@27	6369	/* there was an earlier "return" statement in this function */
dvander@27	6370	if (sub==NULL && retarray \|\| sub!=NULL && !retarray)
dvander@27	6371	error(79); /* mixing "return array;" and "return value;" */
dvander@27	6372	if (retarray && (curfunc->usage & uPUBLIC)!=0)
dvander@27	6373	error(90,curfunc->name); /* public function may not return array */
dvander@27	6374	} /* if */
dvander@27	6375	rettype\|=uRETVALUE; /* function returns a value */
dvander@27	6376	/* check tagname with function tagname */
dvander@27	6377	assert(curfunc!=NULL);
dvander@151	6378	if (!matchtag_string(ident, tag) && !matchtag(curfunc->tag,tag,TRUE))
dvander@27	6379	error(213); /* tagname mismatch */
dvander@27	6380	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	6381	int dim[sDIMEN_MAX],numdim;
dvander@27	6382	cell arraysize;
dvander@27	6383	assert(sym!=NULL);
dvander@27	6384	if (sub!=NULL) {
dvander@27	6385	assert(sub->ident==iREFARRAY);
dvander@27	6386	/* this function has an array attached already; check that the current
dvander@27	6387	* "return" statement returns exactly the same array
dvander@27	6388	*/
dvander@27	6389	level=sym->dim.array.level;
dvander@27	6390	if (sub->dim.array.level!=level) {
dvander@27	6391	error(48); /* array dimensions must match */
dvander@27	6392	} else {
dvander@27	6393	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6394	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6395	if (sym->dim.array.length!=dim[numdim])
dvander@27	6396	error(47); /* array sizes must match */
dvander@27	6397	if (numdim<level) {
dvander@27	6398	sym=finddepend(sym);
dvander@27	6399	sub=finddepend(sub);
dvander@27	6400	assert(sym!=NULL && sub!=NULL);
dvander@27	6401	/* ^^^ both arrays have the same dimensions (this was checked
dvander@27	6402	* earlier) so the dependend should always be found
dvander@27	6403	*/
dvander@27	6404	} /* if */
dvander@27	6405	} /* for */
dvander@27	6406	} /* if */
dvander@27	6407	} else {
dvander@27	6408	int idxtag[sDIMEN_MAX];
dvander@27	6409	int argcount;
dvander@27	6410	/* this function does not yet have an array attached; clone the
dvander@27	6411	* returned symbol beneath the current function
dvander@27	6412	*/
dvander@27	6413	sub=sym;
dvander@27	6414	assert(sub!=NULL);
dvander@27	6415	level=sub->dim.array.level;
dvander@27	6416	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6417	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6418	idxtag[numdim]=sub->x.tags.index;
dvander@27	6419	if (numdim<level) {
dvander@27	6420	sub=finddepend(sub);
dvander@27	6421	assert(sub!=NULL);
dvander@27	6422	} /* if */
dvander@27	6423	/* check that all dimensions are known */
dvander@27	6424	if (dim[numdim]<=0)
dvander@27	6425	error(46,sym->name);
dvander@27	6426	} /* for */
dvander@27	6427	/* the address of the array is stored in a hidden parameter; the address
dvander@27	6428	* of this parameter is 1 + the number of parameters (times the size of
dvander@27	6429	* a cell) + the size of the stack frame and the return address
dvander@27	6430	* base + 0*sizeof(cell) == previous "base"
dvander@27	6431	* base + 1*sizeof(cell) == function return address
dvander@27	6432	* base + 2*sizeof(cell) == number of arguments
dvander@27	6433	* base + 3*sizeof(cell) == first argument of the function
dvander@27	6434	* ...
dvander@27	6435	* base + ((n-1)+3)*sizeof(cell) == last argument of the function
dvander@27	6436	* base + (n+3)*sizeof(cell) == hidden parameter with array address
dvander@27	6437	*/
dvander@27	6438	assert(curfunc!=NULL);
dvander@27	6439	assert(curfunc->dim.arglist!=NULL);
dvander@27	6440	for (argcount=0; curfunc->dim.arglist[argcount].ident!=0; argcount++)
dvander@27	6441	/* nothing */;
dvander@27	6442	sub=addvariable(curfunc->name,(argcount+3)*sizeof(cell),iREFARRAY,sGLOBAL,curfunc->tag,dim,numdim,idxtag);
dvander@27	6443	sub->parent=curfunc;
dvander@27	6444	} /* if */
dvander@27	6445	/* get the hidden parameter, copy the array (the array is on the heap;
dvander@27	6446	* it stays on the heap for the moment, and it is removed -usually- at
dvander@27	6447	* the end of the expression/statement, see expression() in SC3.C)
dvander@27	6448	*/
dvander@27	6449	address(sub,sALT); /* ALT = destination */
dvander@27	6450	arraysize=calc_arraysize(dim,numdim,0);
dvander@27	6451	memcopy(arraysizesizeof(cell)); / source already in PRI */
dvander@27	6452	/* moveto1(); is not necessary, callfunction() does a popreg() */
dvander@27	6453	} /* if */
dvander@27	6454	} else {
dvander@27	6455	/* this return statement contains no expression */
dvander@27	6456	ldconst(0,sPRI);
dvander@27	6457	if ((rettype & uRETVALUE)!=0) {
dvander@27	6458	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	6459	assert(curfunc!=NULL);
dvander@27	6460	funcdisplayname(symname,curfunc->name);
dvander@27	6461	error(209,symname); /* function should return a value */
dvander@27	6462	} /* if */
dvander@27	6463	rettype\|=uRETNONE; /* function does not return anything */
dvander@27	6464	} /* if */
dvander@27	6465	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@118	6466	genheapfree(-1);
dvander@117	6467	genstackfree(-1); /* free everything on the stack */
dvander@27	6468	ffret(strcmp(curfunc->name,uENTRYFUNC)!=0);
dvander@27	6469	}
dvander@27	6470
dvander@27	6471	static void dobreak(void)
dvander@27	6472	{
dvander@27	6473	int *ptr;
dvander@27	6474
faluco@62	6475	endlessloop=0; /* if we were inside an endless loop, we just jumped out */
dvander@27	6476	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6477	needtoken(tTERM);
dvander@27	6478	if (ptr==NULL)
dvander@27	6479	return;
dvander@27	6480	destructsymbols(&loctab,nestlevel);
dvander@117	6481	genstackfree(ptr[wqBRK]);
dvander@27	6482	jumplabel(ptr[wqEXIT]);
dvander@27	6483	}
dvander@27	6484
dvander@27	6485	static void docont(void)
dvander@27	6486	{
dvander@27	6487	int *ptr;
dvander@27	6488
dvander@27	6489	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6490	needtoken(tTERM);
dvander@27	6491	if (ptr==NULL)
dvander@27	6492	return;
dvander@27	6493	destructsymbols(&loctab,nestlevel);
dvander@117	6494	genstackfree(ptr[wqCONT]);
dvander@128	6495	genheapfree(ptr[wqCONT]);
dvander@27	6496	jumplabel(ptr[wqLOOP]);
dvander@27	6497	}
dvander@27	6498
dvander@27	6499	SC_FUNC void exporttag(int tag)
dvander@27	6500	{
dvander@27	6501	/* find the tag by value in the table, then set the top bit to mark it
dvander@27	6502	* "public"
dvander@27	6503	*/
dvander@27	6504	if (tag!=0 && (tag & PUBLICTAG)==0) {
dvander@27	6505	constvalue *ptr;
dvander@27	6506	for (ptr=tagname_tab.next; ptr!=NULL && tag!=(int)(ptr->value & TAGMASK); ptr=ptr->next)
dvander@27	6507	/* nothing */;
dvander@27	6508	if (ptr!=NULL)
dvander@27	6509	ptr->value \|= PUBLICTAG;
dvander@27	6510	} /* if */
dvander@27	6511	}
dvander@27	6512
dvander@27	6513	static void doexit(void)
dvander@27	6514	{
dvander@27	6515	int tag=0;
dvander@27	6516
dvander@27	6517	if (matchtoken(tTERM)==0){
dvander@27	6518	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6519	needtoken(tTERM);
dvander@27	6520	} else {
dvander@27	6521	ldconst(0,sPRI);
dvander@27	6522	} /* if */
dvander@27	6523	ldconst(tag,sALT);
dvander@27	6524	exporttag(tag);
dvander@27	6525	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@27	6526	ffabort(xEXIT);
dvander@27	6527	}
dvander@27	6528
dvander@27	6529	static void dosleep(void)
dvander@27	6530	{
dvander@27	6531	int tag=0;
dvander@27	6532
dvander@27	6533	if (matchtoken(tTERM)==0){
dvander@27	6534	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6535	needtoken(tTERM);
dvander@27	6536	} else {
dvander@27	6537	ldconst(0,sPRI);
dvander@27	6538	} /* if */
dvander@27	6539	ldconst(tag,sALT);
dvander@27	6540	exporttag(tag);
dvander@27	6541	ffabort(xSLEEP);
dvander@27	6542
dvander@27	6543	/* for stack usage checking, mark the use of the sleep instruction */
dvander@27	6544	pc_memflags \|= suSLEEP_INSTR;
dvander@27	6545	}
dvander@27	6546
dvander@27	6547	static void dostate(void)
dvander@27	6548	{
dvander@27	6549	char name[sNAMEMAX+1];
dvander@27	6550	constvalue *automaton;
dvander@27	6551	constvalue *state;
dvander@27	6552	constvalue *stlist;
dvander@27	6553	int flabel;
dvander@27	6554	symbol *sym;
dvander@27	6555	#if !defined SC_LIGHT
dvander@27	6556	int length,index,listid,listindex,stateindex;
dvander@27	6557	char *doc;
dvander@27	6558	#endif
dvander@27	6559
dvander@27	6560	/* check for an optional condition */
dvander@27	6561	if (matchtoken('(')) {
dvander@27	6562	flabel=getlabel(); /* get label number for "false" branch */
dvander@27	6563	pc_docexpr=TRUE; /* attach expression as a documentation string */
faluco@62	6564	test(flabel,TEST_PLAIN,FALSE);/* get expression, branch to flabel if false */
dvander@27	6565	pc_docexpr=FALSE;
dvander@27	6566	needtoken(')');
dvander@27	6567	} else {
dvander@27	6568	flabel=-1;
dvander@27	6569	} /* if */
dvander@27	6570
dvander@27	6571	if (!sc_getstateid(&automaton,&state)) {
dvander@27	6572	delete_autolisttable();
dvander@27	6573	return;
dvander@27	6574	} /* if */
dvander@27	6575	needtoken(tTERM);
dvander@27	6576
dvander@27	6577	/* store the new state id */
dvander@27	6578	assert(state!=NULL);
dvander@27	6579	ldconst(state->value,sPRI);
dvander@27	6580	assert(automaton!=NULL);
dvander@27	6581	assert(automaton->index==0 && automaton->name[0]=='\0' \|\| automaton->index>0);
dvander@27	6582	storereg(automaton->value,sPRI);
dvander@27	6583
dvander@27	6584	/* find the optional entry() function for the state */
dvander@27	6585	sym=findglb(uENTRYFUNC,sGLOBAL);
dvander@27	6586	if (sc_status==statWRITE && sym!=NULL && sym->ident==iFUNCTN && sym->states!=NULL) {
dvander@27	6587	for (stlist=sym->states->next; stlist!=NULL; stlist=stlist->next) {
dvander@27	6588	assert(strlen(stlist->name)!=0);
dvander@27	6589	if (state_getfsa(stlist->index)==automaton->index && state_inlist(stlist->index,(int)state->value))
dvander@27	6590	break; /* found! */
dvander@27	6591	} /* for */
dvander@27	6592	assert(stlist==NULL \|\| state_inlist(stlist->index,state->value));
dvander@27	6593	if (stlist!=NULL) {
dvander@27	6594	/* the label to jump to is in stlist->name */
dvander@27	6595	ffcall(sym,stlist->name,0);
dvander@27	6596	} /* if */
dvander@27	6597	} /* if */
dvander@27	6598
dvander@27	6599	if (flabel>=0)
dvander@27	6600	setlabel(flabel); /* condition was false, jump around the state switch */
dvander@27	6601
dvander@27	6602	#if !defined SC_LIGHT
dvander@27	6603	/* mark for documentation */
dvander@27	6604	if (sc_status==statFIRST) {
dvander@27	6605	char *str;
dvander@27	6606	/* get the last list id attached to the function, this contains the source states */
dvander@27	6607	assert(curfunc!=NULL);
dvander@27	6608	if (curfunc->states!=NULL) {
dvander@27	6609	stlist=curfunc->states->next;
dvander@27	6610	assert(stlist!=NULL);
dvander@27	6611	while (stlist->next!=NULL)
dvander@27	6612	stlist=stlist->next;
dvander@27	6613	listid=stlist->index;
dvander@27	6614	} else {
dvander@27	6615	listid=-1;
dvander@27	6616	} /* if */
dvander@27	6617	listindex=0;
dvander@27	6618	length=strlen(name)+70; /* +70 for the fixed part "<transition ... />\n" */
dvander@27	6619	/* see if there are any condition strings to attach */
dvander@27	6620	for (index=0; (str=get_autolist(index))!=NULL; index++)
dvander@27	6621	length+=strlen(str);
dvander@27	6622	if ((doc=(char)malloc(lengthsizeof(char)))!=NULL) {
dvander@27	6623	do {
dvander@27	6624	sprintf(doc,"<transition target=\"%s\"",name);
dvander@27	6625	if (listid>=0) {
dvander@27	6626	/* get the source state */
dvander@27	6627	stateindex=state_listitem(listid,listindex);
dvander@27	6628	state=state_findid(stateindex);
dvander@27	6629	assert(state!=NULL);
dvander@27	6630	sprintf(doc+strlen(doc)," source=\"%s\"",state->name);
dvander@27	6631	} /* if */
dvander@27	6632	if (get_autolist(0)!=NULL) {
dvander@27	6633	/* add the condition */
dvander@27	6634	strcat(doc," condition=\"");
dvander@27	6635	for (index=0; (str=get_autolist(index))!=NULL; index++) {
dvander@27	6636	/* remove the ')' token that may be appended before detecting that the expression has ended */
dvander@27	6637	if (str!=')' \|\| (str+1)!='\0' \|\| get_autolist(index+1)!=NULL)
dvander@27	6638	strcat(doc,str);
dvander@27	6639	} /* for */
dvander@27	6640	strcat(doc,"\"");
dvander@27	6641	} /* if */
dvander@27	6642	strcat(doc,"/>\n");
dvander@27	6643	insert_docstring(doc);
dvander@27	6644	} while (listid>=0 && ++listindex<state_count(listid));
dvander@27	6645	free(doc);
dvander@27	6646	} /* if */
dvander@27	6647	} /* if */
dvander@27	6648	#endif
dvander@27	6649	delete_autolisttable();
dvander@27	6650	}
dvander@27	6651
dvander@27	6652
dvander@27	6653	static void addwhile(int *ptr)
dvander@27	6654	{
dvander@27	6655	int k;
dvander@27	6656
dvander@640	6657	ptr[wqBRK]=stackusage->list_id; /* stack pointer (for "break") */
dvander@640	6658	ptr[wqCONT]=stackusage->list_id; /* for "continue", possibly adjusted later */
dvander@27	6659	ptr[wqLOOP]=getlabel();
dvander@27	6660	ptr[wqEXIT]=getlabel();
dvander@27	6661	if (wqptr>=(wq+wqTABSZ-wqSIZE))
ds@841	6662	error(122,"loop table"); /* loop table overflow (too many active loops)*/
dvander@27	6663	k=0;
dvander@27	6664	while (k<wqSIZE){ /* copy "ptr" to while queue table */
dvander@27	6665	wqptr=ptr;
dvander@27	6666	wqptr+=1;
dvander@27	6667	ptr+=1;
dvander@27	6668	k+=1;
dvander@27	6669	} /* while */
dvander@27	6670	}
dvander@27	6671
dvander@27	6672	static void delwhile(void)
dvander@27	6673	{
dvander@27	6674	if (wqptr>wq)
dvander@27	6675	wqptr-=wqSIZE;
dvander@27	6676	}
dvander@27	6677
dvander@27	6678	static int *readwhile(void)
dvander@27	6679	{
dvander@27	6680	if (wqptr<=wq){
dvander@27	6681	error(24); /* out of context */
dvander@27	6682	return NULL;
dvander@27	6683	} else {
dvander@27	6684	return (wqptr-wqSIZE);
dvander@27	6685	} /* if */
dvander@27	6686	}
dvander@27	6687

author	David Anderson <dvander@alliedmods.net>
	Wed Feb 25 20:07:12 2009 -0500 (2009-02-25)
changeset 2607	f3b8bbe17f85
parent 2317	a7380514e63c
child 2665	f6e84c453287
child 2705	4bb5b5669919
permissions	-rw-r--r--