sourcemod-central: sourcepawn/compiler/sc1.c@ea875bcbc286 (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@27	146
faluco@62	147	enum {
faluco@62	148	TEST_PLAIN, /* no parentheses */
faluco@62	149	TEST_THEN, /* '(' <expr> ')' or <expr> 'then' */
faluco@62	150	TEST_DO, /* '(' <expr> ')' or <expr> 'do' */
faluco@62	151	TEST_OPT, /* '(' <expr> ')' or <expr> */
faluco@62	152	};
dvander@27	153	static int norun = 0; /* the compiler never ran */
faluco@62	154	static int autozero = 1; /* if 1 will zero out the variable, if 0 omit the zeroing */
dvander@27	155	static int lastst = 0; /* last executed statement type */
dvander@27	156	static int nestlevel = 0; /* number of active (open) compound statements */
faluco@62	157	static int endlessloop= 0; /* nesting level of endless loop */
dvander@27	158	static int rettype = 0; /* the type that a "return" expression should have */
dvander@27	159	static int skipinput = 0; /* number of lines to skip from the first input file */
dvander@27	160	static int optproccall = TRUE; /* support "procedure call" */
dvander@27	161	static int verbosity = 1; /* verbosity level, 0=quiet, 1=normal, 2=verbose */
dvander@27	162	static int sc_reparse = 0; /* needs 3th parse because of changed prototypes? */
dvander@27	163	static int sc_parsenum = 0; /* number of the extra parses */
dvander@27	164	static int wq[wqTABSZ]; /* "while queue", internal stack for nested loops */
dvander@27	165	static int wqptr; / pointer to next entry */
dvander@27	166	#if !defined SC_LIGHT
dvander@27	167	static char sc_rootpath[_MAX_PATH];
dvander@27	168	static char sc_documentation=NULL;/ main documentation */
dvander@27	169	#endif
dvander@27	170	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	171	static HWND hwndFinish = 0;
dvander@27	172	#endif
dvander@27	173
dvander@510	174	SC_VDECL int glbstringread = 0;
dvander@406	175	char g_tmpfile[_MAX_PATH] = {0};
dvander@406	176
dvander@27	177	/* "main" of the compiler
dvander@27	178	*/
dvander@27	179	#if defined __cplusplus
dvander@27	180	extern "C"
dvander@27	181	#endif
dvander@27	182	int pc_compile(int argc, char *argv[])
dvander@27	183	{
dvander@27	184	int entry,i,jmpcode;
dvander@27	185	int retcode;
dvander@27	186	char incfname[_MAX_PATH];
dvander@27	187	char reportname[_MAX_PATH];
dvander@27	188	char codepage[MAXCODEPAGE+1];
dvander@27	189	FILE *binf;
dvander@27	190	void *inpfmark;
dvander@27	191	int lcl_packstr,lcl_needsemicolon,lcl_tabsize;
dvander@27	192	#if !defined SC_LIGHT
dvander@27	193	int hdrsize=0;
dvander@27	194	#endif
dvander@27	195	char *ptr;
dvander@27	196
dvander@27	197	/* set global variables to their initial value */
dvander@27	198	binf=NULL;
dvander@27	199	initglobals();
dvander@27	200	errorset(sRESET,0);
dvander@27	201	errorset(sEXPRRELEASE,0);
dvander@27	202	lexinit();
dvander@27	203
dvander@27	204	/* make sure that we clean up on a fatal error; do this before the first
dvander@27	205	* call to error(). */
dvander@27	206	if ((jmpcode=setjmp(errbuf))!=0)
dvander@27	207	goto cleanup;
dvander@27	208
dvander@27	209	/* allocate memory for fixed tables */
dvander@27	210	inpfname=(char*)malloc(_MAX_PATH);
dvander@27	211	if (inpfname==NULL)
ds@841	212	error(123); /* insufficient memory */
dvander@27	213	litq=(cell)malloc(litmaxsizeof(cell));
dvander@27	214	if (litq==NULL)
ds@841	215	error(123); /* insufficient memory */
dvander@27	216	if (!phopt_init())
ds@841	217	error(123); /* insufficient memory */
dvander@27	218
dvander@27	219	setopt(argc,argv,outfname,errfname,incfname,reportname,codepage);
dvander@27	220	strcpy(binfname,outfname);
dvander@27	221	ptr=get_extension(binfname);
dvander@27	222	if (ptr!=NULL && stricmp(ptr,".asm")==0)
dvander@27	223	set_extension(binfname,".smx",TRUE);
dvander@27	224	else
dvander@27	225	set_extension(binfname,".smx",FALSE);
dvander@27	226	/* set output names that depend on the input name */
dvander@27	227	if (sc_listing)
dvander@27	228	set_extension(outfname,".lst",TRUE);
dvander@27	229	else
dvander@27	230	set_extension(outfname,".asm",TRUE);
dvander@27	231	if (strlen(errfname)!=0)
dvander@27	232	remove(errfname); /* delete file on startup */
dvander@27	233	else if (verbosity>0)
dvander@27	234	setcaption();
dvander@27	235	setconfig(argv[0]); /* the path to the include and codepage files */
dvander@27	236	sc_ctrlchar_org=sc_ctrlchar;
dvander@27	237	lcl_packstr=sc_packstr;
dvander@27	238	lcl_needsemicolon=sc_needsemicolon;
dvander@27	239	lcl_tabsize=sc_tabsize;
dvander@27	240	#if !defined NO_CODEPAGE
dvander@27	241	if (!cp_set(codepage)) /* set codepage */
ds@841	242	error(128); /* codepage mapping file not found */
dvander@27	243	#endif
dvander@27	244	/* optionally create a temporary input file that is a collection of all
dvander@27	245	* input files
dvander@27	246	*/
dvander@27	247	assert(get_sourcefile(0)!=NULL); /* there must be at least one source file */
dvander@27	248	if (get_sourcefile(1)!=NULL) {
dvander@27	249	/* there are at least two or more source files */
dvander@27	250	char tname,sname;
dvander@27	251	FILE ftmp,fsrc;
dvander@27	252	int fidx;
dvander@27	253	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	254	tname=_tempnam(NULL,"pawn");
dvander@27	255	#elif defined __MSDOS__ \|\| defined _Windows
dvander@27	256	tname=tempnam(NULL,"pawn");
dvander@27	257	#elif defined(MACOS) && !defined(__MACH__)
dvander@27	258	/* tempnam is not supported for the Macintosh CFM build. */
ds@841	259	error(124,get_sourcefile(1));
dvander@27	260	tname=NULL;
dvander@27	261	sname=NULL;
dvander@27	262	#else
dvander@27	263	tname=tempnam(NULL,"pawn");
dvander@27	264	#endif
dvander@27	265	ftmp=(FILE*)pc_createsrc(tname);
dvander@27	266	for (fidx=0; (sname=get_sourcefile(fidx))!=NULL; fidx++) {
dvander@27	267	unsigned char tstring[128];
dvander@27	268	fsrc=(FILE*)pc_opensrc(sname);
dvander@27	269	if (fsrc==NULL) {
dvander@406	270	pc_closesrc(ftmp);
dvander@406	271	remove(tname);
dvander@27	272	strcpy(inpfname,sname); /* avoid invalid filename */
ds@841	273	error(120,sname);
dvander@27	274	} /* if */
dvander@406	275	pc_writesrc(ftmp,(unsigned char*)"#file \"");
dvander@27	276	pc_writesrc(ftmp,(unsigned char*)sname);
dvander@406	277	pc_writesrc(ftmp,(unsigned char*)"\"\n");
dvander@406	278	while (!pc_eofsrc(fsrc) && pc_readsrc(fsrc,tstring,sizeof tstring)) {
dvander@27	279	pc_writesrc(ftmp,tstring);
dvander@27	280	} /* while */
dvander@27	281	pc_closesrc(fsrc);
dvander@27	282	} /* for */
dvander@27	283	pc_closesrc(ftmp);
dvander@27	284	strcpy(inpfname,tname);
dvander@406	285	strcpy(g_tmpfile,tname);
dvander@27	286	free(tname);
dvander@27	287	} else {
dvander@27	288	strcpy(inpfname,get_sourcefile(0));
dvander@27	289	} /* if */
dvander@27	290	inpf_org=(FILE*)pc_opensrc(inpfname);
dvander@27	291	if (inpf_org==NULL)
ds@841	292	error(120,inpfname);
dvander@27	293	freading=TRUE;
dvander@27	294	outf=(FILE)pc_openasm(outfname); / first write to assembler file (may be temporary) */
dvander@27	295	if (outf==NULL)
ds@841	296	error(121,outfname);
dvander@27	297	/* immediately open the binary file, for other programs to check */
dvander@27	298	if (sc_asmfile \|\| sc_listing) {
dvander@27	299	binf=NULL;
dvander@27	300	} else {
dvander@27	301	binf=(FILE*)pc_openbin(binfname);
dvander@27	302	if (binf==NULL)
ds@841	303	error(121,binfname);
dvander@27	304	} /* if */
dvander@27	305	setconstants(); /* set predefined constants and tagnames */
dvander@27	306	for (i=0; i<skipinput; i++) /* skip lines in the input file */
dvander@27	307	if (pc_readsrc(inpf_org,pline,sLINEMAX)!=NULL)
dvander@27	308	fline++; /* keep line number up to date */
dvander@27	309	skipinput=fline;
dvander@27	310	sc_status=statFIRST;
dvander@27	311	/* write starting options (from the command line or the configuration file) */
dvander@27	312	if (sc_listing) {
dvander@27	313	char string[150];
dvander@27	314	sprintf(string,"#pragma ctrlchar 0x%02x\n"
dvander@27	315	"#pragma pack %s\n"
dvander@27	316	"#pragma semicolon %s\n"
dvander@27	317	"#pragma tabsize %d\n",
dvander@27	318	sc_ctrlchar,
dvander@27	319	sc_packstr ? "true" : "false",
dvander@27	320	sc_needsemicolon ? "true" : "false",
dvander@27	321	sc_tabsize);
dvander@27	322	pc_writeasm(outf,string);
dvander@27	323	setfiledirect(inpfname);
dvander@27	324	} /* if */
dvander@27	325	/* do the first pass through the file (or possibly two or more "first passes") */
dvander@27	326	sc_parsenum=0;
dvander@27	327	inpfmark=pc_getpossrc(inpf_org);
dvander@27	328	do {
dvander@27	329	/* reset "defined" flag of all functions and global variables */
dvander@27	330	reduce_referrers(&glbtab);
dvander@27	331	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@27	332	#if !defined NO_DEFINE
dvander@27	333	delete_substtable();
dvander@27	334	inst_datetime_defines();
dvander@27	335	#endif
dvander@27	336	resetglobals();
dvander@167	337	pstructs_free();
dvander@132	338	funcenums_free();
dvander@27	339	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	340	sc_packstr=lcl_packstr;
dvander@27	341	sc_needsemicolon=lcl_needsemicolon;
dvander@27	342	sc_tabsize=lcl_tabsize;
dvander@27	343	errorset(sRESET,0);
dvander@27	344	/* reset the source file */
dvander@27	345	inpf=inpf_org;
dvander@27	346	freading=TRUE;
dvander@27	347	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	348	fline=skipinput; /* reset line number */
dvander@27	349	sc_reparse=FALSE; /* assume no extra passes */
dvander@27	350	sc_status=statFIRST; /* resetglobals() resets it to IDLE */
dvander@27	351
dvander@27	352	if (strlen(incfname)>0) {
dvander@27	353	if (strcmp(incfname,sDEF_PREFIX)==0) {
dvander@27	354	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" */
dvander@27	355	} else {
dvander@27	356	if (!plungequalifiedfile(incfname)) /* parse "prefix" include file */
ds@841	357	error(120,incfname); /* cannot read from ... (fatal error) */
dvander@27	358	} /* if */
dvander@27	359	} /* if */
dvander@27	360	preprocess(); /* fetch first line */
dvander@27	361	parse(); /* process all input */
dvander@27	362	sc_parsenum++;
dvander@27	363	} while (sc_reparse);
dvander@27	364
dvander@27	365	/* second (or third) pass */
dvander@27	366	sc_status=statWRITE; /* set, to enable warnings */
dvander@27	367	state_conflict(&glbtab);
dvander@27	368
dvander@27	369	/* write a report, if requested */
dvander@27	370	#if !defined SC_LIGHT
dvander@27	371	if (sc_makereport) {
dvander@27	372	FILE *frep=stdout;
dvander@27	373	if (strlen(reportname)>0)
dvander@27	374	frep=fopen(reportname,"wb"); /* avoid translation of \n to \r\n in DOS/Windows */
dvander@27	375	if (frep!=NULL) {
dvander@27	376	make_report(&glbtab,frep,get_sourcefile(0));
dvander@27	377	if (strlen(reportname)>0)
dvander@27	378	fclose(frep);
dvander@27	379	} /* if */
dvander@27	380	if (sc_documentation!=NULL) {
dvander@27	381	free(sc_documentation);
dvander@27	382	sc_documentation=NULL;
dvander@27	383	} /* if */
dvander@27	384	} /* if */
dvander@27	385	#endif
dvander@27	386	if (sc_listing)
dvander@27	387	goto cleanup;
dvander@27	388
dvander@27	389	/* ??? for re-parsing the listing file instead of the original source
dvander@27	390	* file (and doing preprocessing twice):
dvander@27	391	* - close input file, close listing file
dvander@27	392	* - re-open listing file for reading (inpf)
dvander@27	393	* - open assembler file (outf)
dvander@27	394	*/
dvander@27	395
dvander@27	396	/* reset "defined" flag of all functions and global variables */
dvander@27	397	reduce_referrers(&glbtab);
dvander@27	398	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@132	399	funcenums_free();
dvander@167	400	pstructs_free();
dvander@27	401	#if !defined NO_DEFINE
dvander@27	402	delete_substtable();
dvander@27	403	inst_datetime_defines();
dvander@27	404	#endif
dvander@27	405	resetglobals();
dvander@27	406	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	407	sc_packstr=lcl_packstr;
dvander@27	408	sc_needsemicolon=lcl_needsemicolon;
dvander@27	409	sc_tabsize=lcl_tabsize;
dvander@27	410	errorset(sRESET,0);
dvander@27	411	/* reset the source file */
dvander@27	412	inpf=inpf_org;
dvander@27	413	freading=TRUE;
dvander@27	414	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	415	fline=skipinput; /* reset line number */
dvander@27	416	lexinit(); /* clear internal flags of lex() */
dvander@27	417	sc_status=statWRITE; /* allow to write --this variable was reset by resetglobals() */
dvander@27	418	writeleader(&glbtab);
dvander@27	419	insert_dbgfile(inpfname);
dvander@27	420	if (strlen(incfname)>0) {
dvander@27	421	if (strcmp(incfname,sDEF_PREFIX)==0)
dvander@27	422	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" (again) */
dvander@27	423	else
dvander@27	424	plungequalifiedfile(incfname); /* parse implicit include file (again) */
dvander@27	425	} /* if */
dvander@27	426	preprocess(); /* fetch first line */
dvander@27	427	parse(); /* process all input */
dvander@27	428	/* inpf is already closed when readline() attempts to pop of a file */
dvander@27	429	writetrailer(); /* write remaining stuff */
dvander@27	430
dvander@27	431	entry=testsymbols(&glbtab,0,TRUE,FALSE); /* test for unused or undefined
dvander@27	432	* functions and variables */
dvander@27	433	if (!entry)
dvander@27	434	error(13); /* no entry point (no public functions) */
dvander@27	435
dvander@27	436	cleanup:
dvander@27	437	if (inpf!=NULL) /* main source file is not closed, do it now */
dvander@27	438	pc_closesrc(inpf);
dvander@27	439	/* write the binary file (the file is already open) */
dvander@27	440	if (!(sc_asmfile \|\| sc_listing) && errnum==0 && jmpcode==0) {
dvander@27	441	assert(binf!=NULL);
dvander@27	442	pc_resetasm(outf); /* flush and loop back, for reading */
dvander@27	443	#if !defined SC_LIGHT
dvander@27	444	hdrsize=
dvander@27	445	#endif
dvander@27	446	assemble(binf,outf); /* assembler file is now input */
dvander@27	447	} /* if */
dvander@27	448	if (outf!=NULL) {
dvander@27	449	pc_closeasm(outf,!(sc_asmfile \|\| sc_listing));
dvander@27	450	outf=NULL;
dvander@27	451	} /* if */
dvander@27	452	if (binf!=NULL) {
dvander@27	453	pc_closebin(binf,errnum!=0);
dvander@27	454	binf=NULL;
dvander@27	455	} /* if */
dvander@27	456
dvander@27	457	#if !defined SC_LIGHT
dvander@27	458	if (errnum==0 && strlen(errfname)==0) {
dvander@1164	459	#if 0 //bug in compiler -- someone's script caused this function to infrecurs
dvander@27	460	int recursion;
dvander@27	461	long stacksize=max_stacksize(&glbtab,&recursion);
dvander@1164	462	#endif
dvander@27	463	int flag_exceed=0;
dvander@27	464	if (pc_amxlimit>0) {
dvander@27	465	long totalsize=hdrsize+code_idx;
dvander@27	466	if (pc_amxram==0)
dvander@27	467	totalsize+=(glb_declared+pc_stksize)*sizeof(cell);
dvander@27	468	if (totalsize>=pc_amxlimit)
dvander@27	469	flag_exceed=1;
dvander@27	470	} /* if */
dvander@27	471	if (pc_amxram>0 && (glb_declared+pc_stksize)*sizeof(cell)>=(unsigned long)pc_amxram)
dvander@27	472	flag_exceed=1;
dvander@1164	473	if (!norun && (sc_debug & sSYMBOLIC)!=0 \|\| verbosity>=2 \|\| flag_exceed) {
dvander@27	474	pc_printf("Header size: %8ld bytes\n", (long)hdrsize);
dvander@27	475	pc_printf("Code size: %8ld bytes\n", (long)code_idx);
dvander@27	476	pc_printf("Data size: %8ld bytes\n", (long)glb_declared*sizeof(cell));
dvander@27	477	pc_printf("Stack/heap size: %8ld bytes; ", (long)pc_stksize*sizeof(cell));
dvander@1164	478	#if 0
dvander@27	479	pc_printf("estimated max. usage");
dvander@27	480	if (recursion)
faluco@62	481	pc_printf(": unknown, due to recursion\n");
dvander@27	482	else if ((pc_memflags & suSLEEP_INSTR)!=0)
faluco@62	483	pc_printf(": unknown, due to the \"sleep\" instruction\n");
dvander@27	484	else
dvander@27	485	pc_printf("=%ld cells (%ld bytes)\n",stacksize,stacksize*sizeof(cell));
dvander@1164	486	#endif
dvander@27	487	pc_printf("Total requirements:%8ld bytes\n", (long)hdrsize+(long)code_idx+(long)glb_declaredsizeof(cell)+(long)pc_stksizesizeof(cell));
dvander@27	488	} /* if */
dvander@27	489	if (flag_exceed)
ds@841	490	error(126,pc_amxlimit+pc_amxram); /* this causes a jump back to label "cleanup" */
dvander@27	491	} /* if */
dvander@27	492	#endif
dvander@27	493
dvander@406	494	if (g_tmpfile[0] != '\0') {
dvander@406	495	remove(g_tmpfile);
dvander@406	496	}
dvander@27	497	if (inpfname!=NULL) {
dvander@27	498	free(inpfname);
dvander@27	499	} /* if */
dvander@27	500	if (litq!=NULL)
dvander@27	501	free(litq);
dvander@27	502	phopt_cleanup();
dvander@27	503	stgbuffer_cleanup();
dvander@27	504	clearstk();
dvander@27	505	assert(jmpcode!=0 \|\| loctab.next==NULL);/* on normal flow, local symbols
dvander@27	506	* should already have been deleted */
dvander@27	507	delete_symbols(&loctab,0,TRUE,TRUE); /* delete local variables if not yet
dvander@27	508	* done (i.e. on a fatal error) */
dvander@27	509	delete_symbols(&glbtab,0,TRUE,TRUE);
dvander@27	510	delete_consttable(&tagname_tab);
dvander@27	511	delete_consttable(&libname_tab);
dvander@27	512	delete_consttable(&sc_automaton_tab);
dvander@27	513	delete_consttable(&sc_state_tab);
dvander@27	514	state_deletetable();
dvander@27	515	delete_aliastable();
dvander@27	516	delete_pathtable();
dvander@27	517	delete_sourcefiletable();
dvander@27	518	delete_dbgstringtable();
dvander@175	519	funcenums_free();
dvander@175	520	pstructs_free();
dvander@27	521	#if !defined NO_DEFINE
dvander@27	522	delete_substtable();
dvander@27	523	#endif
dvander@27	524	#if !defined SC_LIGHT
dvander@27	525	delete_docstringtable();
dvander@27	526	if (sc_documentation!=NULL)
dvander@27	527	free(sc_documentation);
dvander@27	528	#endif
dvander@27	529	delete_autolisttable();
dvander@27	530	if (errnum!=0) {
dvander@27	531	if (strlen(errfname)==0)
dvander@27	532	pc_printf("\n%d Error%s.\n",errnum,(errnum>1) ? "s" : "");
dvander@27	533	retcode=1;
dvander@27	534	} else if (warnnum!=0){
dvander@27	535	if (strlen(errfname)==0)
dvander@27	536	pc_printf("\n%d Warning%s.\n",warnnum,(warnnum>1) ? "s" : "");
dvander@27	537	retcode=0; /* use "0", so that MAKE and similar tools continue */
dvander@27	538	} else {
dvander@27	539	retcode=jmpcode;
dvander@27	540	if (retcode==0 && verbosity>=2)
dvander@27	541	pc_printf("\nDone.\n");
dvander@27	542	} /* if */
dvander@27	543	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	544	if (IsWindow(hwndFinish))
dvander@27	545	PostMessageA(hwndFinish,RegisterWindowMessageA("PawnNotify"),retcode,0L);
dvander@27	546	#endif
dvander@27	547	#if defined FORTIFY
dvander@27	548	Fortify_ListAllMemory();
dvander@27	549	#endif
dvander@27	550	return retcode;
dvander@27	551	}
dvander@27	552
dvander@27	553	#if defined __cplusplus
dvander@27	554	extern "C"
dvander@27	555	#endif
dvander@27	556	int pc_addconstant(char *name,cell value,int tag)
dvander@27	557	{
dvander@27	558	errorset(sFORCESET,0); /* make sure error engine is silenced */
dvander@27	559	sc_status=statIDLE;
dvander@27	560	add_constant(name,value,sGLOBAL,tag);
dvander@27	561	return 1;
dvander@27	562	}
dvander@27	563
dvander@27	564	static void inst_datetime_defines(void)
dvander@27	565	{
dvander@27	566	char date[64];
dvander@27	567	char ltime[64];
dvander@27	568	time_t td;
dvander@27	569	struct tm *curtime;
dvander@27	570
dvander@27	571	time(&td);
dvander@27	572	curtime = localtime(&td);
dvander@761	573	strftime(date, 31, "\"%m/%d/%Y\"", curtime);
dvander@27	574	strftime(ltime, 31, "\"%H:%M:%S\"", curtime);
dvander@27	575
dvander@27	576	insert_subst("__DATE__", date, 8);
dvander@27	577	insert_subst("__TIME__", ltime, 8);
dvander@27	578	}
dvander@27	579
dvander@27	580	#if defined __cplusplus
dvander@27	581	extern "C"
dvander@27	582	#endif
dvander@27	583	int pc_addtag(char *name)
dvander@27	584	{
dvander@27	585	cell val;
dvander@27	586	constvalue *ptr;
dvander@27	587	int last,tag;
dvander@27	588
dvander@27	589	if (name==NULL) {
dvander@27	590	/* no tagname was given, check for one */
dvander@27	591	if (lex(&val,&name)!=tLABEL) {
dvander@27	592	lexpush();
dvander@27	593	return 0; /* untagged */
dvander@27	594	} /* if */
dvander@27	595	} /* if */
dvander@27	596
dvander@27	597	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@27	598	last=0;
dvander@27	599	ptr=tagname_tab.next;
dvander@27	600	while (ptr!=NULL) {
dvander@27	601	tag=(int)(ptr->value & TAGMASK);
dvander@27	602	if (strcmp(name,ptr->name)==0)
dvander@27	603	return tag; /* tagname is known, return its sequence number */
dvander@27	604	tag &= (int)~FIXEDTAG;
dvander@132	605	tag &= (int)~FUNCTAG;
dvander@27	606	if (tag>last)
dvander@27	607	last=tag;
dvander@27	608	ptr=ptr->next;
dvander@27	609	} /* while */
dvander@27	610
dvander@27	611	/* tagname currently unknown, add it */
dvander@27	612	tag=last+1; /* guaranteed not to exist already */
dvander@27	613	if (isupper(*name))
dvander@27	614	tag \|= (int)FIXEDTAG;
dvander@27	615	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@27	616	return tag;
dvander@27	617	}
dvander@27	618
dvander@132	619	int pc_addfunctag(char *name)
dvander@132	620	{
dvander@132	621	cell val;
dvander@132	622	constvalue *ptr;
dvander@132	623	int last,tag;
dvander@132	624
dvander@132	625	if (name==NULL) {
dvander@132	626	/* no tagname was given, check for one */
dvander@132	627	if (lex(&val,&name)!=tLABEL) {
dvander@132	628	lexpush();
dvander@132	629	return 0; /* untagged */
dvander@132	630	} /* if */
dvander@132	631	} /* if */
dvander@132	632
dvander@132	633	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@132	634	last=0;
dvander@132	635	ptr=tagname_tab.next;
dvander@132	636	while (ptr!=NULL) {
dvander@132	637	tag=(int)(ptr->value & TAGMASK);
dvander@132	638	if (strcmp(name,ptr->name)==0)
dvander@132	639	return tag; /* tagname is known, return its sequence number */
dvander@132	640	tag &= (int)~FIXEDTAG;
dvander@132	641	tag &= (int)~FUNCTAG;
dvander@132	642	if (tag>last)
dvander@132	643	last=tag;
dvander@132	644	ptr=ptr->next;
dvander@132	645	} /* while */
dvander@132	646
dvander@132	647	/* tagname currently unknown, add it */
dvander@132	648	tag=last+1; /* guaranteed not to exist already */
dvander@132	649	if (isupper(*name))
dvander@132	650	tag \|= (int)FIXEDTAG;
dvander@132	651	tag \|= (int)FUNCTAG;
dvander@132	652	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@132	653	return tag;
dvander@132	654	}
dvander@132	655
dvander@27	656	static void resetglobals(void)
dvander@27	657	{
dvander@27	658	/* reset the subset of global variables that is modified by the first pass */
dvander@27	659	curfunc=NULL; /* pointer to current function */
dvander@27	660	lastst=0; /* last executed statement type */
dvander@27	661	nestlevel=0; /* number of active (open) compound statements */
dvander@27	662	rettype=0; /* the type that a "return" expression should have */
dvander@27	663	litidx=0; /* index to literal table */
dvander@27	664	stgidx=0; /* index to the staging buffer */
dvander@27	665	sc_labnum=0; /* top value of (internal) labels */
dvander@27	666	staging=0; /* true if staging output */
dvander@27	667	declared=0; /* number of local cells declared */
dvander@27	668	glb_declared=0; /* number of global cells declared */
dvander@27	669	code_idx=0; /* number of bytes with generated code */
dvander@27	670	ntv_funcid=0; /* incremental number of native function */
dvander@27	671	curseg=0; /* 1 if currently parsing CODE, 2 if parsing DATA */
dvander@27	672	freading=FALSE; /* no input file ready yet */
dvander@27	673	fline=0; /* the line number in the current file */
dvander@27	674	fnumber=0; /* the file number in the file table (debugging) */
dvander@27	675	fcurrent=0; /* current file being processed (debugging) */
dvander@27	676	sc_intest=FALSE; /* true if inside a test */
dvander@27	677	sideeffect=0; /* true if an expression causes a side-effect */
dvander@27	678	stmtindent=0; /* current indent of the statement */
dvander@27	679	indent_nowarn=FALSE; /* do not skip warning "217 loose indentation" */
dvander@27	680	sc_allowtags=TRUE; /* allow/detect tagnames */
dvander@27	681	sc_status=statIDLE;
dvander@27	682	sc_allowproccall=FALSE;
dvander@27	683	pc_addlibtable=TRUE; /* by default, add a "library table" to the output file */
dvander@27	684	sc_alignnext=FALSE;
dvander@27	685	pc_docexpr=FALSE;
ds@52	686	pc_deprecate=NULL;
dvander@27	687	sc_curstates=0;
dvander@27	688	pc_memflags=0;
dvander@27	689	}
dvander@27	690
dvander@27	691	static void initglobals(void)
dvander@27	692	{
dvander@27	693	resetglobals();
dvander@27	694
dvander@27	695	sc_asmfile=FALSE; /* do not create .ASM file */
dvander@27	696	sc_listing=FALSE; /* do not create .LST file */
dvander@27	697	skipinput=0; /* number of lines to skip from the first input file */
dvander@27	698	sc_ctrlchar=CTRL_CHAR;/* the escape character */
dvander@27	699	litmax=sDEF_LITMAX; /* current size of the literal table */
dvander@27	700	errnum=0; /* number of errors */
dvander@27	701	warnnum=0; /* number of warnings */
dvander@27	702	optproccall=FALSE; /* sourcemod: do not support "procedure call" */
dvander@27	703	verbosity=1; /* verbosity level, no copyright banner */
dvander@27	704	sc_debug=sCHKBOUNDS\|sSYMBOLIC; /* sourcemod: full debug stuff */
dvander@27	705	pc_optimize=sOPTIMIZE_DEFAULT; /* sourcemod: full optimization */
dvander@151	706	sc_packstr=TRUE; /* strings are packed by default */
dvander@27	707	sc_compress=FALSE; /* always disable compact encoding! */
dvander@27	708	sc_needsemicolon=FALSE;/* semicolon required to terminate expressions? */
dvander@27	709	sc_dataalign=sizeof(cell);
dvander@27	710	pc_stksize=sDEF_AMXSTACK;/* default stack size */
dvander@27	711	pc_amxlimit=0; /* no limit on size of the abstract machine */
dvander@27	712	pc_amxram=0; /* no limit on data size of the abstract machine */
dvander@27	713	sc_tabsize=8; /* assume a TAB is 8 spaces */
dvander@27	714	sc_rationaltag=0; /* assume no support for rational numbers */
dvander@27	715	rational_digits=0; /* number of fractional digits */
dvander@27	716
dvander@27	717	outfname[0]='\0'; /* output file name */
dvander@27	718	errfname[0]='\0'; /* error file name */
dvander@27	719	inpf=NULL; /* file read from */
dvander@27	720	inpfname=NULL; /* pointer to name of the file currently read from */
dvander@27	721	outf=NULL; /* file written to */
dvander@27	722	litq=NULL; /* the literal queue */
dvander@27	723	glbtab.next=NULL; /* clear global variables/constants table */
dvander@27	724	loctab.next=NULL; /* " local " / " " */
dvander@27	725	tagname_tab.next=NULL;/* tagname table */
dvander@27	726	libname_tab.next=NULL;/* library table (#pragma library "..." syntax) */
dvander@27	727
dvander@27	728	pline[0]='\0'; /* the line read from the input file */
dvander@27	729	lptr=NULL; /* points to the current position in "pline" */
dvander@27	730	curlibrary=NULL; /* current library */
dvander@27	731	inpf_org=NULL; /* main source file */
dvander@27	732
dvander@27	733	wqptr=wq; /* initialize while queue pointer */
dvander@27	734
dvander@27	735	#if !defined SC_LIGHT
dvander@27	736	sc_documentation=NULL;
dvander@27	737	sc_makereport=FALSE; /* do not generate a cross-reference report */
dvander@27	738	#endif
dvander@27	739	}
dvander@27	740
dvander@27	741	static char get_extension(char filename)
dvander@27	742	{
dvander@27	743	char *ptr;
dvander@27	744
dvander@27	745	assert(filename!=NULL);
dvander@27	746	ptr=strrchr(filename,'.');
dvander@27	747	if (ptr!=NULL) {
dvander@27	748	/* ignore extension on a directory or at the start of the filename */
dvander@27	749	if (strchr(ptr,DIRSEP_CHAR)!=NULL \|\| ptr==filename \|\| *(ptr-1)==DIRSEP_CHAR)
dvander@27	750	ptr=NULL;
dvander@27	751	} /* if */
dvander@27	752	return ptr;
dvander@27	753	}
dvander@27	754
dvander@27	755	/* set_extension
dvander@27	756	* Set the default extension, or force an extension. To erase the
dvander@27	757	* extension of a filename, set "extension" to an empty string.
dvander@27	758	*/
dvander@27	759	SC_FUNC void set_extension(char filename,char extension,int force)
dvander@27	760	{
dvander@27	761	char *ptr;
dvander@27	762
dvander@27	763	assert(extension!=NULL && (extension=='\0' \|\| extension=='.'));
dvander@27	764	assert(filename!=NULL);
dvander@27	765	ptr=get_extension(filename);
dvander@27	766	if (force && ptr!=NULL)
dvander@27	767	ptr='\0'; / set zero terminator at the position of the period */
dvander@27	768	if (force \|\| ptr==NULL)
dvander@27	769	strcat(filename,extension);
dvander@27	770	}
dvander@27	771
dvander@27	772	static const char option_value(const char optptr)
dvander@27	773	{
dvander@27	774	return ((optptr+1)=='=' \|\| (optptr+1)==':') ? optptr+2 : optptr+1;
dvander@27	775	}
dvander@27	776
dvander@27	777	static int toggle_option(const char *optptr, int option)
dvander@27	778	{
dvander@27	779	switch (*option_value(optptr)) {
dvander@27	780	case '\0':
dvander@27	781	option=!option;
dvander@27	782	break;
dvander@27	783	case '-':
dvander@27	784	option=FALSE;
dvander@27	785	break;
dvander@27	786	case '+':
dvander@27	787	option=TRUE;
dvander@27	788	break;
dvander@27	789	default:
dvander@27	790	about();
dvander@27	791	} /* switch */
dvander@27	792	return option;
dvander@27	793	}
dvander@27	794
dvander@27	795	/* Parsing command line options is indirectly recursive: parseoptions()
dvander@27	796	* calls parserespf() to handle options in a a response file and
dvander@27	797	* parserespf() calls parseoptions() at its turn after having created
dvander@27	798	* an "option list" from the contents of the file.
dvander@27	799	*/
dvander@27	800	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	801	char rname, char codepage);
dvander@27	802
dvander@27	803	static void parseoptions(int argc,char *argv,char oname,char ename,char pname,
dvander@27	804	char rname, char codepage)
dvander@27	805	{
dvander@27	806	char str[_MAX_PATH],*name;
dvander@27	807	const char *ptr;
dvander@27	808	int arg,i,isoption;
dvander@27	809
dvander@27	810	for (arg=1; arg<argc; arg++) {
dvander@27	811	#if DIRSEP_CHAR=='/'
dvander@27	812	isoption= argv[arg][0]=='-';
dvander@27	813	#else
dvander@27	814	isoption= argv[arg][0]=='/' \|\| argv[arg][0]=='-';
dvander@27	815	#endif
dvander@27	816	if (isoption) {
dvander@27	817	ptr=&argv[arg][1];
dvander@27	818	switch (*ptr) {
dvander@27	819	case 'A':
dvander@27	820	i=atoi(option_value(ptr));
dvander@27	821	if ((i % sizeof(cell))==0)
dvander@27	822	sc_dataalign=i;
dvander@27	823	else
dvander@27	824	about();
dvander@27	825	break;
dvander@27	826	case 'a':
dvander@27	827	if (*(ptr+1)!='\0')
dvander@27	828	about();
dvander@27	829	sc_asmfile=TRUE; /* skip last pass of making binary file */
dvander@27	830	if (verbosity>1)
dvander@27	831	verbosity=1;
dvander@27	832	break;
dvander@27	833	#if 0 /* not allowed in SourceMod */
dvander@27	834	case 'C':
dvander@27	835	#if AMX_COMPACTMARGIN > 2
dvander@27	836	sc_compress=toggle_option(ptr,sc_compress);
dvander@27	837	#else
dvander@27	838	about();
dvander@27	839	#endif
dvander@27	840	break;
dvander@27	841	#endif
dvander@27	842	case 'c':
dvander@27	843	strlcpy(codepage,option_value(ptr),MAXCODEPAGE); /* set name of codepage */
dvander@27	844	break;
dvander@27	845	#if defined dos_setdrive
dvander@27	846	case 'D': /* set active directory */
dvander@27	847	ptr=option_value(ptr);
dvander@27	848	if (ptr[1]==':')
dvander@27	849	dos_setdrive(toupper(ptr)-'A'+1); / set active drive */
dvander@27	850	chdir(ptr);
dvander@27	851	break;
dvander@27	852	#endif
dvander@27	853	#if 0 /* not allowed to change for SourceMod */
dvander@27	854	case 'd':
dvander@27	855	switch (*option_value(ptr)) {
dvander@27	856	case '0':
dvander@27	857	sc_debug=0;
dvander@27	858	break;
dvander@27	859	case '1':
dvander@27	860	sc_debug=sCHKBOUNDS; /* assertions and bounds checking */
dvander@27	861	break;
dvander@27	862	case '2':
dvander@27	863	sc_debug=sCHKBOUNDS \| sSYMBOLIC; /* also symbolic info */
dvander@27	864	break;
dvander@27	865	case '3':
dvander@27	866	sc_debug=sCHKBOUNDS \| sSYMBOLIC;
dvander@27	867	pc_optimize=sOPTIMIZE_NONE;
dvander@27	868	/* also avoid peephole optimization */
dvander@27	869	break;
dvander@27	870	default:
dvander@27	871	about();
dvander@27	872	} /* switch */
dvander@27	873	break;
dvander@27	874	#endif
dvander@27	875	case 'e':
dvander@27	876	strlcpy(ename,option_value(ptr),_MAX_PATH); /* set name of error file */
dvander@27	877	break;
dvander@27	878	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	879	case 'H':
dvander@27	880	hwndFinish=(HWND)atoi(option_value(ptr));
dvander@27	881	if (!IsWindow(hwndFinish))
dvander@27	882	hwndFinish=(HWND)0;
dvander@27	883	break;
dvander@27	884	#endif
dvander@27	885	case 'i':
dvander@27	886	strlcpy(str,option_value(ptr),sizeof str); /* set name of include directory */
dvander@27	887	i=strlen(str);
dvander@27	888	if (i>0) {
dvander@27	889	if (str[i-1]!=DIRSEP_CHAR) {
dvander@27	890	str[i]=DIRSEP_CHAR;
dvander@27	891	str[i+1]='\0';
dvander@27	892	} /* if */
dvander@27	893	insert_path(str);
dvander@27	894	} /* if */
dvander@27	895	break;
dvander@27	896	case 'l':
dvander@27	897	if (*(ptr+1)!='\0')
dvander@27	898	about();
dvander@27	899	sc_listing=TRUE; /* skip second pass & code generation */
dvander@27	900	break;
dvander@27	901	case 'o':
dvander@27	902	strlcpy(oname,option_value(ptr),_MAX_PATH); /* set name of (binary) output file */
dvander@27	903	break;
dvander@27	904	case 'O':
dvander@27	905	pc_optimize=*option_value(ptr) - '0';
dvander@27	906	if (pc_optimize<sOPTIMIZE_NONE \|\| pc_optimize>=sOPTIMIZE_NUMBER \|\| pc_optimize==sOPTIMIZE_NOMACRO)
dvander@27	907	about();
dvander@27	908	break;
dvander@27	909	case 'p':
dvander@27	910	strlcpy(pname,option_value(ptr),_MAX_PATH); /* set name of implicit include file */
dvander@27	911	break;
dvander@27	912	#if !defined SC_LIGHT
dvander@27	913	case 'r':
dvander@27	914	strlcpy(rname,option_value(ptr),_MAX_PATH); /* set name of report file */
dvander@27	915	sc_makereport=TRUE;
dvander@27	916	if (strlen(rname)>0) {
dvander@27	917	set_extension(rname,".xml",FALSE);
dvander@27	918	} else if ((name=get_sourcefile(0))!=NULL) {
dvander@27	919	assert(strlen(rname)==0);
dvander@27	920	assert(strlen(name)<_MAX_PATH);
dvander@27	921	if ((ptr=strrchr(name,DIRSEP_CHAR))!=NULL)
dvander@27	922	ptr++; /* strip path */
dvander@27	923	else
dvander@27	924	ptr=name;
dvander@27	925	assert(strlen(ptr)<_MAX_PATH);
dvander@27	926	strcpy(rname,ptr);
dvander@27	927	set_extension(rname,".xml",TRUE);
dvander@27	928	} /* if */
dvander@27	929	break;
dvander@27	930	#endif
dvander@27	931	case 'S':
dvander@27	932	i=atoi(option_value(ptr));
dvander@27	933	if (i>32)
dvander@27	934	pc_stksize=(cell)i; /* stack size has minimum size */
dvander@27	935	else
dvander@27	936	about();
dvander@27	937	break;
dvander@27	938	case 's':
dvander@27	939	skipinput=atoi(option_value(ptr));
dvander@27	940	break;
dvander@27	941	case 't':
dvander@27	942	sc_tabsize=atoi(option_value(ptr));
dvander@27	943	break;
dvander@27	944	case 'v':
dvander@27	945	verbosity= isdigit(*option_value(ptr)) ? atoi(option_value(ptr)) : 2;
dvander@27	946	if (sc_asmfile && verbosity>1)
dvander@27	947	verbosity=1;
dvander@27	948	break;
dvander@27	949	case 'w':
dvander@27	950	i=(int)strtol(option_value(ptr),(char **)&ptr,10);
dvander@27	951	if (*ptr=='-')
dvander@27	952	pc_enablewarning(i,0);
dvander@27	953	else if (*ptr=='+')
dvander@27	954	pc_enablewarning(i,1);
dvander@27	955	else if (*ptr=='\0')
dvander@27	956	pc_enablewarning(i,2);
dvander@27	957	break;
dvander@27	958	case 'X':
dvander@27	959	if (*(ptr+1)=='D') {
dvander@27	960	i=atoi(option_value(ptr+1));
dvander@27	961	if (i>64)
dvander@27	962	pc_amxram=(cell)i; /* abstract machine data/stack has minimum size */
dvander@27	963	else
dvander@27	964	about();
dvander@27	965	} else {
dvander@27	966	i=atoi(option_value(ptr));
dvander@27	967	if (i>64)
dvander@27	968	pc_amxlimit=(cell)i;/* abstract machine has minimum size */
dvander@27	969	else
dvander@27	970	about();
dvander@27	971	} /* if */
dvander@27	972	break;
dvander@27	973	case '\\': /* use \ instead for escape characters */
dvander@27	974	sc_ctrlchar='\\';
dvander@27	975	break;
dvander@27	976	case '^': /* use ^ instead for escape characters */
dvander@27	977	sc_ctrlchar='^';
dvander@27	978	break;
dvander@27	979	case ';':
dvander@27	980	sc_needsemicolon=toggle_option(ptr,sc_needsemicolon);
dvander@27	981	break;
dvander@27	982	#if 0 /* not allowed to change in SourceMod */
dvander@27	983	case '(':
dvander@27	984	optproccall=!toggle_option(ptr,!optproccall);
dvander@27	985	break;
dvander@27	986	#endif
dvander@27	987	default: /* wrong option */
dvander@27	988	about();
dvander@27	989	} /* switch */
dvander@27	990	} else if (argv[arg][0]=='@') {
dvander@27	991	#if !defined SC_LIGHT
dvander@27	992	parserespf(&argv[arg][1],oname,ename,pname,rname,codepage);
dvander@27	993	#endif
dvander@27	994	} else if ((ptr=strchr(argv[arg],'='))!=NULL) {
dvander@27	995	i=(int)(ptr-argv[arg]);
dvander@27	996	if (i>sNAMEMAX) {
dvander@27	997	i=sNAMEMAX;
dvander@27	998	error(200,argv[arg],sNAMEMAX); /* symbol too long, truncated to sNAMEMAX chars */
dvander@27	999	} /* if */
dvander@27	1000	strlcpy(str,argv[arg],i+1); /* str holds symbol name */
dvander@27	1001	i=atoi(ptr+1);
dvander@27	1002	add_constant(str,i,sGLOBAL,0);
dvander@27	1003	} else {
dvander@395	1004	strlcpy(str,argv[arg],sizeof(str)-5); /* -5 because default extension is ".sp" */
dvander@395	1005	set_extension(str,".sp",FALSE);
dvander@27	1006	insert_sourcefile(str);
dvander@27	1007	/* The output name is the first input name with a different extension,
dvander@27	1008	* but it is stored in a different directory
dvander@27	1009	*/
dvander@27	1010	if (strlen(oname)==0) {
dvander@27	1011	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1012	ptr++; /* strip path */
dvander@27	1013	else
dvander@27	1014	ptr=str;
dvander@27	1015	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1016	strcpy(oname,ptr);
dvander@27	1017	} /* if */
dvander@27	1018	set_extension(oname,".asm",TRUE);
dvander@27	1019	#if !defined SC_LIGHT
dvander@27	1020	if (sc_makereport && strlen(rname)==0) {
dvander@27	1021	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1022	ptr++; /* strip path */
dvander@27	1023	else
dvander@27	1024	ptr=str;
dvander@27	1025	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1026	strcpy(rname,ptr);
dvander@27	1027	set_extension(rname,".xml",TRUE);
dvander@27	1028	} /* if */
dvander@27	1029	#endif
dvander@27	1030	} /* if */
dvander@27	1031	} /* for */
dvander@27	1032	}
dvander@27	1033
dvander@27	1034	#if !defined SC_LIGHT
dvander@27	1035	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	1036	char rname,char codepage)
dvander@27	1037	{
dvander@27	1038	#define MAX_OPTIONS 100
dvander@27	1039	FILE *fp;
dvander@27	1040	char string, ptr, **argv;
dvander@27	1041	int argc;
dvander@27	1042	long size;
dvander@27	1043
dvander@27	1044	if ((fp=fopen(filename,"r"))==NULL)
ds@841	1045	error(120,filename); /* error reading input file */
dvander@27	1046	/* load the complete file into memory */
dvander@27	1047	fseek(fp,0L,SEEK_END);
dvander@27	1048	size=ftell(fp);
dvander@27	1049	fseek(fp,0L,SEEK_SET);
dvander@27	1050	assert(size<INT_MAX);
dvander@27	1051	if ((string=(char *)malloc((int)size+1))==NULL)
ds@841	1052	error(123); /* insufficient memory */
dvander@27	1053	/* fill with zeros; in MS-DOS, fread() may collapse CR/LF pairs to
dvander@27	1054	* a single '\n', so the string size may be smaller than the file
dvander@27	1055	* size. */
dvander@27	1056	memset(string,0,(int)size+1);
dvander@27	1057	fread(string,1,(int)size,fp);
dvander@27	1058	fclose(fp);
dvander@27	1059	/* allocate table for option pointers */
dvander@27	1060	if ((argv=(char *)malloc(MAX_OPTIONSsizeof(char*)))==NULL)
ds@841	1061	error(123); /* insufficient memory */
dvander@27	1062	/* fill the options table */
dvander@27	1063	ptr=strtok(string," \t\r\n");
dvander@27	1064	for (argc=1; argc<MAX_OPTIONS && ptr!=NULL; argc++) {
dvander@27	1065	/* note: the routine skips argv[0], for compatibility with main() */
dvander@27	1066	argv[argc]=ptr;
dvander@27	1067	ptr=strtok(NULL," \t\r\n");
dvander@27	1068	} /* for */
dvander@27	1069	if (ptr!=NULL)
ds@841	1070	error(122,"option table"); /* table overflow */
dvander@27	1071	/* parse the option table */
dvander@27	1072	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1073	/* free allocated memory */
dvander@27	1074	free(argv);
dvander@27	1075	free(string);
dvander@27	1076	}
dvander@27	1077	#endif
dvander@27	1078
dvander@27	1079	static void setopt(int argc,char *argv,char oname,char ename,char pname,
dvander@27	1080	char rname,char codepage)
dvander@27	1081	{
dvander@27	1082	delete_sourcefiletable(); /* make sure it is empty */
dvander@27	1083	*oname='\0';
dvander@27	1084	*ename='\0';
dvander@27	1085	*pname='\0';
dvander@27	1086	*rname='\0';
dvander@27	1087	*codepage='\0';
dvander@27	1088	strcpy(pname,sDEF_PREFIX);
dvander@27	1089
dvander@27	1090	#if 0 /* needed to test with BoundsChecker for DOS (it does not pass
dvander@27	1091	* through arguments) */
dvander@27	1092	insert_sourcefile("test.p");
dvander@27	1093	strcpy(oname,"test.asm");
dvander@27	1094	#endif
dvander@27	1095
dvander@27	1096	#if !defined SC_LIGHT
dvander@27	1097	/* first parse a "config" file with default options */
dvander@27	1098	if (argv[0]!=NULL) {
dvander@27	1099	char cfgfile[_MAX_PATH];
dvander@27	1100	char *ext;
dvander@27	1101	strcpy(cfgfile,argv[0]);
dvander@27	1102	if ((ext=strrchr(cfgfile,DIRSEP_CHAR))!=NULL) {
dvander@27	1103	(ext+1)='\0'; / strip the program filename */
dvander@27	1104	strcat(cfgfile,"pawn.cfg");
dvander@27	1105	} else {
dvander@27	1106	strcpy(cfgfile,"pawn.cfg");
dvander@27	1107	} /* if */
dvander@27	1108	if (access(cfgfile,4)==0)
dvander@27	1109	parserespf(cfgfile,oname,ename,pname,rname,codepage);
dvander@27	1110	} /* if */
dvander@27	1111	#endif
dvander@27	1112	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1113	if (get_sourcefile(0)==NULL)
dvander@27	1114	about();
dvander@27	1115	}
dvander@27	1116
dvander@27	1117	#if defined __BORLANDC__ \|\| defined __WATCOMC__
dvander@27	1118	#pragma argsused
dvander@27	1119	#endif
dvander@27	1120	static void setconfig(char *root)
dvander@27	1121	{
dvander@27	1122	#if defined macintosh
dvander@27	1123	insert_path(":include:");
dvander@27	1124	#else
dvander@27	1125	char path[_MAX_PATH];
dvander@27	1126	char ptr,base;
dvander@27	1127	int len;
dvander@27	1128
dvander@27	1129	/* add the default "include" directory */
dvander@27	1130	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	1131	GetModuleFileNameA(NULL,path,_MAX_PATH);
ds@1312	1132	#elif defined LINUX \|\| defined __FreeBSD__ \|\| defined __OpenBSD__
ds@1312	1133	/* see www.autopackage.org for the BinReloc module */
ds@1312	1134	br_init_lib(NULL);
ds@1312	1135	ptr=br_find_exe("spcomp");
ds@1312	1136	strlcpy(path,ptr,sizeof path);
ds@1312	1137	free(ptr);
dvander@27	1138	#else
dvander@27	1139	if (root!=NULL)
dvander@27	1140	strlcpy(path,root,sizeof path); /* path + filename (hopefully) */
dvander@27	1141	#endif
dvander@27	1142	#if defined __MSDOS__
dvander@27	1143	/* strip the options (appended to the path + filename) */
dvander@27	1144	if ((ptr=strpbrk(path," \t/"))!=NULL)
dvander@27	1145	*ptr='\0';
dvander@27	1146	#endif
dvander@27	1147	/* terminate just behind last \ or : */
dvander@27	1148	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL \|\| (ptr=strchr(path,':'))!=NULL) {
dvander@27	1149	/* If there is no "\" or ":", the string probably does not contain the
dvander@27	1150	* path; so we just don't add it to the list in that case
dvander@27	1151	*/
dvander@27	1152	*(ptr+1)='\0';
dvander@27	1153	base=ptr;
dvander@27	1154	strcat(path,"include");
dvander@27	1155	len=strlen(path);
dvander@27	1156	path[len]=DIRSEP_CHAR;
dvander@27	1157	path[len+1]='\0';
dvander@27	1158	/* see if it exists */
dvander@27	1159	if (access(path,0)!=0 && *base==DIRSEP_CHAR) {
dvander@27	1160	/* There is no "include" directory below the directory where the compiler
dvander@27	1161	* is found. This typically means that the compiler is in a "bin" sub-directory
dvander@27	1162	* and the "include" is below the parent. So find the parent...
dvander@27	1163	*/
dvander@27	1164	*base='\0';
dvander@27	1165	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL) {
dvander@27	1166	*(ptr+1)='\0';
dvander@27	1167	strcat(path,"include");
dvander@27	1168	len=strlen(path);
dvander@27	1169	path[len]=DIRSEP_CHAR;
dvander@27	1170	path[len+1]='\0';
dvander@27	1171	} else {
dvander@27	1172	*base=DIRSEP_CHAR;
dvander@27	1173	} /* if */
dvander@27	1174	} /* if */
dvander@27	1175	insert_path(path);
dvander@27	1176	/* same for the codepage root */
dvander@27	1177	#if !defined NO_CODEPAGE
dvander@27	1178	*ptr='\0';
dvander@27	1179	if (!cp_path(path,"codepage"))
ds@841	1180	error(129,path); /* codepage path */
dvander@27	1181	#endif
dvander@27	1182	/* also copy the root path (for the XML documentation) */
dvander@27	1183	#if !defined SC_LIGHT
dvander@27	1184	*ptr='\0';
dvander@27	1185	strcpy(sc_rootpath,path);
dvander@27	1186	#endif
dvander@27	1187	} /* if */
dvander@27	1188	#endif /* macintosh */
dvander@27	1189	}
dvander@27	1190
dvander@27	1191	static void setcaption(void)
dvander@27	1192	{
dvander@799	1193	pc_printf("SourcePawn Compiler " SVN_FULL_VERSION "\n");
dvander@799	1194	pc_printf("Copyright (c) 1997-2006, ITB CompuPhase, (C)2004-2007 AlliedModders, LLC\n\n");
dvander@27	1195	}
dvander@27	1196
dvander@27	1197	static void about(void)
dvander@27	1198	{
dvander@27	1199	if (strlen(errfname)==0) {
dvander@27	1200	setcaption();
dvander@1654	1201	pc_printf("Usage: spcomp <filename> [filename...] [options]\n\n");
dvander@27	1202	pc_printf("Options:\n");
dvander@27	1203	pc_printf(" -A<num> alignment in bytes of the data segment and the stack\n");
dvander@27	1204	pc_printf(" -a output assembler code\n");
dvander@27	1205	#if 0 /* not toggleable in SourceMod */
dvander@27	1206	pc_printf(" -C[+/-] compact encoding for output file (default=%c)\n", sc_compress ? '+' : '-');
dvander@27	1207	#endif
dvander@27	1208	pc_printf(" -c<name> codepage name or number; e.g. 1252 for Windows Latin-1\n");
dvander@27	1209	#if defined dos_setdrive
dvander@27	1210	pc_printf(" -Dpath active directory path\n");
dvander@27	1211	#endif
dvander@27	1212	#if 0 /* not used for SourceMod */
dvander@27	1213	pc_printf(" -d<num> debugging level (default=-d%d)\n",sc_debug);
dvander@27	1214	pc_printf(" 0 no symbolic information, no run-time checks\n");
dvander@27	1215	pc_printf(" 1 run-time checks, no symbolic information\n");
dvander@27	1216	pc_printf(" 2 full debug information and dynamic checking\n");
dvander@27	1217	pc_printf(" 3 same as -d2, but implies -O0\n");
dvander@27	1218	#endif
dvander@27	1219	pc_printf(" -e<name> set name of error file (quiet compile)\n");
dvander@27	1220	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	1221	pc_printf(" -H<hwnd> window handle to send a notification message on finish\n");
dvander@27	1222	#endif
dvander@27	1223	pc_printf(" -i<name> path for include files\n");
dvander@27	1224	pc_printf(" -l create list file (preprocess only)\n");
dvander@27	1225	pc_printf(" -o<name> set base name of (P-code) output file\n");
dvander@27	1226	pc_printf(" -O<num> optimization level (default=-O%d)\n",pc_optimize);
dvander@27	1227	pc_printf(" 0 no optimization\n");
dvander@27	1228	#if 0 /* not used for SourceMod */
dvander@27	1229	pc_printf(" 1 JIT-compatible optimizations only\n");
dvander@27	1230	#endif
dvander@27	1231	pc_printf(" 2 full optimizations\n");
dvander@27	1232	pc_printf(" -p<name> set name of \"prefix\" file\n");
dvander@27	1233	#if !defined SC_LIGHT
dvander@27	1234	pc_printf(" -r[name] write cross reference report to console or to specified file\n");
dvander@27	1235	#endif
dvander@27	1236	pc_printf(" -S<num> stack/heap size in cells (default=%d)\n",(int)pc_stksize);
dvander@27	1237	pc_printf(" -s<num> skip lines from the input file\n");
dvander@27	1238	pc_printf(" -t<num> TAB indent size (in character positions, default=%d)\n",sc_tabsize);
dvander@27	1239	pc_printf(" -v<num> verbosity level; 0=quiet, 1=normal, 2=verbose (default=%d)\n",verbosity);
dvander@27	1240	pc_printf(" -w<num> disable a specific warning by its number\n");
dvander@27	1241	pc_printf(" -X<num> abstract machine size limit in bytes\n");
dvander@27	1242	pc_printf(" -XD<num> abstract machine data/stack size limit in bytes\n");
dvander@27	1243	pc_printf(" -\\ use '\\' for escape characters\n");
dvander@27	1244	pc_printf(" -^ use '^' for escape characters\n");
dvander@27	1245	pc_printf(" -;[+/-] require a semicolon to end each statement (default=%c)\n", sc_needsemicolon ? '+' : '-');
dvander@27	1246	#if 0 /* not allowed in SourceMod */
dvander@27	1247	pc_printf(" -([+/-] require parantheses for function invocation (default=%c)\n", optproccall ? '-' : '+');
dvander@27	1248	#endif
dvander@27	1249	pc_printf(" sym=val define constant \"sym\" with value \"val\"\n");
dvander@27	1250	pc_printf(" sym= define constant \"sym\" with value 0\n");
dvander@27	1251	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows \|\| defined __MSDOS__
dvander@27	1252	pc_printf("\nOptions may start with a dash or a slash; the options \"-d0\" and \"/d0\" are\n");
dvander@27	1253	pc_printf("equivalent.\n");
dvander@27	1254	#endif
dvander@27	1255	pc_printf("\nOptions with a value may optionally separate the value from the option letter\n");
dvander@27	1256	pc_printf("with a colon (\":\") or an equal sign (\"=\"). That is, the options \"-d0\", \"-d=0\"\n");
dvander@27	1257	pc_printf("and \"-d:0\" are all equivalent.\n");
dvander@27	1258	} /* if */
dvander@27	1259	norun = 1;
dvander@27	1260	longjmp(errbuf,3); /* user abort */
dvander@27	1261	}
dvander@27	1262
dvander@27	1263	static void setconstants(void)
dvander@27	1264	{
dvander@27	1265	int debug;
dvander@27	1266
dvander@27	1267	assert(sc_status==statIDLE);
dvander@27	1268	append_constval(&tagname_tab,"_",0,0);/* "untagged" */
dvander@27	1269	append_constval(&tagname_tab,"bool",1,0);
ds@632	1270
ds@632	1271	pc_anytag = pc_addtag("any");
dvander@132	1272	pc_functag = pc_addfunctag("Function");
dvander@151	1273	pc_tag_string = pc_addtag("String");
dvander@27	1274
dvander@27	1275	add_constant("true",1,sGLOBAL,1); /* boolean flags */
dvander@27	1276	add_constant("false",0,sGLOBAL,1);
dvander@27	1277	add_constant("EOS",0,sGLOBAL,0); /* End Of String, or '\0' */
dvander@27	1278	#if PAWN_CELL_SIZE==16
dvander@27	1279	add_constant("cellbits",16,sGLOBAL,0);
dvander@27	1280	#if defined _I16_MAX
dvander@27	1281	add_constant("cellmax",_I16_MAX,sGLOBAL,0);
dvander@27	1282	add_constant("cellmin",_I16_MIN,sGLOBAL,0);
dvander@27	1283	#else
dvander@27	1284	add_constant("cellmax",SHRT_MAX,sGLOBAL,0);
dvander@27	1285	add_constant("cellmin",SHRT_MIN,sGLOBAL,0);
dvander@27	1286	#endif
dvander@27	1287	#elif PAWN_CELL_SIZE==32
dvander@27	1288	add_constant("cellbits",32,sGLOBAL,0);
dvander@27	1289	#if defined _I32_MAX
dvander@27	1290	add_constant("cellmax",_I32_MAX,sGLOBAL,0);
dvander@27	1291	add_constant("cellmin",_I32_MIN,sGLOBAL,0);
dvander@27	1292	#else
dvander@27	1293	add_constant("cellmax",LONG_MAX,sGLOBAL,0);
dvander@27	1294	add_constant("cellmin",LONG_MIN,sGLOBAL,0);
dvander@27	1295	#endif
dvander@27	1296	#elif PAWN_CELL_SIZE==64
dvander@27	1297	#if !defined _I64_MIN
dvander@27	1298	#define _I64_MIN (-9223372036854775807ULL - 1)
dvander@27	1299	#define _I64_MAX 9223372036854775807ULL
dvander@27	1300	#endif
dvander@27	1301	add_constant("cellbits",64,sGLOBAL,0);
dvander@27	1302	add_constant("cellmax",_I64_MAX,sGLOBAL,0);
dvander@27	1303	add_constant("cellmin",_I64_MIN,sGLOBAL,0);
dvander@27	1304	#else
dvander@27	1305	#error Unsupported cell size
dvander@27	1306	#endif
dvander@27	1307	add_constant("charbits",sCHARBITS,sGLOBAL,0);
dvander@27	1308	add_constant("charmin",0,sGLOBAL,0);
dvander@27	1309	add_constant("charmax",~(-1 << sCHARBITS) - 1,sGLOBAL,0);
dvander@27	1310	add_constant("ucharmax",(1 << (sizeof(cell)-1)*8)-1,sGLOBAL,0);
dvander@27	1311
dvander@27	1312	add_constant("__Pawn",VERSION_INT,sGLOBAL,0);
dvander@27	1313
dvander@27	1314	debug=0;
dvander@27	1315	if ((sc_debug & (sCHKBOUNDS \| sSYMBOLIC))==(sCHKBOUNDS \| sSYMBOLIC))
dvander@27	1316	debug=2;
dvander@27	1317	else if ((sc_debug & sCHKBOUNDS)==sCHKBOUNDS)
dvander@27	1318	debug=1;
dvander@27	1319	add_constant("debug",debug,sGLOBAL,0);
dvander@27	1320
dvander@27	1321	append_constval(&sc_automaton_tab,"",0,0); /* anonymous automaton */
dvander@27	1322	}
dvander@27	1323
dvander@27	1324	static int getclassspec(int initialtok,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1325	{
dvander@27	1326	int tok,err;
dvander@27	1327	cell val;
dvander@27	1328	char *str;
dvander@27	1329
dvander@27	1330	assert(fconst!=NULL);
dvander@27	1331	assert(fstock!=NULL);
dvander@27	1332	assert(fstatic!=NULL);
dvander@27	1333	assert(fpublic!=NULL);
dvander@27	1334	*fconst=FALSE;
dvander@27	1335	*fstock=FALSE;
dvander@27	1336	*fstatic=FALSE;
dvander@27	1337	*fpublic=FALSE;
dvander@27	1338	switch (initialtok) {
dvander@27	1339	case tCONST:
dvander@27	1340	*fconst=TRUE;
dvander@27	1341	break;
dvander@27	1342	case tSTOCK:
dvander@27	1343	*fstock=TRUE;
dvander@27	1344	break;
dvander@27	1345	case tSTATIC:
dvander@27	1346	*fstatic=TRUE;
dvander@27	1347	break;
dvander@27	1348	case tPUBLIC:
dvander@27	1349	*fpublic=TRUE;
dvander@27	1350	break;
dvander@27	1351	} /* switch */
dvander@27	1352
dvander@27	1353	err=0;
dvander@27	1354	do {
dvander@27	1355	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1356	switch (tok) {
dvander@27	1357	case tCONST:
dvander@27	1358	if (*fconst)
dvander@27	1359	err=42; /* invalid combination of class specifiers */
dvander@27	1360	*fconst=TRUE;
dvander@27	1361	break;
dvander@27	1362	case tSTOCK:
dvander@27	1363	if (*fstock)
dvander@27	1364	err=42; /* invalid combination of class specifiers */
dvander@27	1365	*fstock=TRUE;
dvander@27	1366	break;
dvander@27	1367	case tSTATIC:
dvander@27	1368	if (*fstatic)
dvander@27	1369	err=42; /* invalid combination of class specifiers */
dvander@27	1370	*fstatic=TRUE;
dvander@27	1371	break;
dvander@27	1372	case tPUBLIC:
dvander@27	1373	if (*fpublic)
dvander@27	1374	err=42; /* invalid combination of class specifiers */
dvander@27	1375	*fpublic=TRUE;
dvander@27	1376	break;
dvander@27	1377	default:
dvander@27	1378	lexpush();
dvander@27	1379	tok=0; /* force break out of loop */
dvander@27	1380	} /* switch */
dvander@27	1381	} while (tok && err==0);
dvander@27	1382
dvander@27	1383	/* extra checks */
dvander@27	1384	if (fstatic && fpublic) {
dvander@27	1385	err=42; /* invalid combination of class specifiers */
dvander@27	1386	fstatic=fpublic=FALSE;
dvander@27	1387	} /* if */
dvander@27	1388
dvander@27	1389	if (err)
dvander@27	1390	error(err);
dvander@27	1391	return err==0;
dvander@27	1392	}
dvander@27	1393
dvander@27	1394	/* parse - process all input text
dvander@27	1395	*
dvander@27	1396	* At this level, only static declarations and function definitions are legal.
dvander@27	1397	*/
dvander@27	1398	static void parse(void)
dvander@27	1399	{
dvander@27	1400	int tok,fconst,fstock,fstatic,fpublic;
dvander@27	1401	cell val;
dvander@27	1402	char *str;
dvander@27	1403
dvander@27	1404	while (freading){
dvander@27	1405	/* first try whether a declaration possibly is native or public */
dvander@27	1406	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1407	switch (tok) {
dvander@27	1408	case 0:
dvander@27	1409	/* ignore zero's */
dvander@27	1410	break;
dvander@27	1411	case tNEW:
dvander@27	1412	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst))
dvander@27	1413	declglb(NULL,0,fpublic,fstatic,fstock,fconst);
dvander@27	1414	break;
dvander@27	1415	case tSTATIC:
dvander@27	1416	/* This can be a static function or a static global variable; we know
dvander@27	1417	* which of the two as soon as we have parsed up to the point where an
dvander@27	1418	* opening paranthesis of a function would be expected. To back out after
dvander@27	1419	* deciding it was a declaration of a static variable after all, we have
dvander@27	1420	* to store the symbol name and tag.
dvander@27	1421	*/
dvander@27	1422	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1423	assert(!fpublic);
dvander@27	1424	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1425	} /* if */
dvander@27	1426	break;
dvander@27	1427	case tCONST:
dvander@27	1428	decl_const(sGLOBAL);
dvander@27	1429	break;
dvander@27	1430	case tENUM:
dvander@27	1431	decl_enum(sGLOBAL);
dvander@27	1432	break;
dvander@132	1433	case tFUNCENUM:
dvander@338	1434	dofuncenum(TRUE);
dvander@338	1435	break;
dvander@338	1436	case tFUNCTAG:
dvander@338	1437	dofuncenum(FALSE);
dvander@132	1438	break;
dvander@167	1439	case tSTRUCT:
dvander@167	1440	declstruct();
dvander@167	1441	break;
dvander@27	1442	case tPUBLIC:
dvander@27	1443	/* This can be a public function or a public variable; see the comment
dvander@27	1444	* above (for static functions/variables) for details.
dvander@27	1445	*/
dvander@27	1446	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1447	assert(!fstatic);
dvander@27	1448	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1449	} /* if */
dvander@27	1450	break;
dvander@27	1451	case tSTOCK:
dvander@27	1452	/* This can be a stock function or a stock global) variable; see the
dvander@27	1453	* comment above (for static functions/variables) for details.
dvander@27	1454	*/
dvander@27	1455	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1456	assert(fstock);
dvander@27	1457	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1458	} /* if */
dvander@27	1459	break;
dvander@27	1460	case tLABEL:
dvander@27	1461	case tSYMBOL:
dvander@27	1462	case tOPERATOR:
dvander@27	1463	lexpush();
dvander@27	1464	if (!newfunc(NULL,-1,FALSE,FALSE,FALSE)) {
dvander@27	1465	error(10); /* illegal function or declaration */
dvander@27	1466	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1467	litidx=0; /* drop the literal queue too */
dvander@27	1468	} /* if */
dvander@27	1469	break;
dvander@27	1470	case tNATIVE:
dvander@27	1471	funcstub(TRUE); /* create a dummy function */
dvander@27	1472	break;
dvander@27	1473	case tFORWARD:
dvander@27	1474	funcstub(FALSE);
dvander@27	1475	break;
dvander@27	1476	case '}':
dvander@27	1477	error(54); /* unmatched closing brace */
dvander@27	1478	break;
dvander@27	1479	case '{':
dvander@27	1480	error(55); /* start of function body without function header */
dvander@27	1481	break;
dvander@27	1482	default:
dvander@27	1483	if (freading) {
dvander@27	1484	error(10); /* illegal function or declaration */
dvander@27	1485	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1486	litidx=0; /* drop any literal arrays (strings) */
dvander@27	1487	} /* if */
dvander@27	1488	} /* switch */
dvander@27	1489	} /* while */
dvander@27	1490	}
dvander@27	1491
dvander@27	1492	/* dumplits
dvander@27	1493	*
dvander@27	1494	* Dump the literal pool (strings etc.)
dvander@27	1495	*
dvander@27	1496	* Global references: litidx (referred to only)
dvander@27	1497	*/
dvander@27	1498	static void dumplits(void)
dvander@27	1499	{
dvander@27	1500	int j,k;
dvander@27	1501
faluco@62	1502	if (sc_status==statSKIP)
faluco@62	1503	return;
faluco@62	1504
dvander@27	1505	k=0;
dvander@27	1506	while (k<litidx){
dvander@27	1507	/* should be in the data segment */
dvander@27	1508	assert(curseg==2);
dvander@27	1509	defstorage();
dvander@27	1510	j=16; /* 16 values per line */
dvander@27	1511	while (j && k<litidx){
dvander@27	1512	outval(litq[k], FALSE);
dvander@27	1513	stgwrite(" ");
dvander@27	1514	k++;
dvander@27	1515	j--;
dvander@27	1516	if (j==0 \|\| k>=litidx)
dvander@27	1517	stgwrite("\n"); /* force a newline after 10 dumps */
dvander@27	1518	/* Note: stgwrite() buffers a line until it is complete. It recognizes
dvander@27	1519	* the end of line as a sequence of "\n\0", so something like "\n\t"
dvander@27	1520	* so should not be passed to stgwrite().
dvander@27	1521	*/
dvander@27	1522	} /* while */
dvander@27	1523	} /* while */
dvander@27	1524	}
dvander@27	1525
dvander@27	1526	/* dumpzero
dvander@27	1527	*
dvander@27	1528	* Dump zero's for default initial values
dvander@27	1529	*/
dvander@27	1530	static void dumpzero(int count)
dvander@27	1531	{
dvander@27	1532	int i;
dvander@27	1533
faluco@62	1534	if (sc_status==statSKIP \|\| count<=0)
dvander@27	1535	return;
dvander@27	1536	assert(curseg==2);
dvander@27	1537	defstorage();
dvander@27	1538	i=0;
dvander@27	1539	while (count-- > 0) {
dvander@27	1540	outval(0, FALSE);
dvander@27	1541	i=(i+1) % 16;
dvander@27	1542	stgwrite((i==0 \|\| count==0) ? "\n" : " ");
dvander@27	1543	if (i==0 && count>0)
dvander@27	1544	defstorage();
dvander@27	1545	} /* while */
dvander@27	1546	}
dvander@27	1547
dvander@27	1548	static void aligndata(int numbytes)
dvander@27	1549	{
dvander@27	1550	assert(numbytes % sizeof(cell) == 0); /* alignment must be a multiple of
dvander@27	1551	* the cell size */
dvander@27	1552	assert(numbytes!=0);
dvander@27	1553
dvander@27	1554	if ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0) {
dvander@27	1555	while ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0)
dvander@27	1556	litadd(0);
dvander@27	1557	} /* if */
dvander@27	1558
dvander@27	1559	}
dvander@27	1560
dvander@27	1561	#if !defined SC_LIGHT
dvander@27	1562	/* sc_attachdocumentation()
dvander@27	1563	* appends documentation comments to the passed-in symbol, or to a global
dvander@27	1564	* string if "sym" is NULL.
dvander@27	1565	*/
dvander@27	1566	void sc_attachdocumentation(symbol *sym)
dvander@27	1567	{
dvander@27	1568	int line;
dvander@27	1569	size_t length;
dvander@27	1570	char str,doc;
dvander@27	1571
dvander@27	1572	if (!sc_makereport \|\| sc_status!=statFIRST \|\| sc_parsenum>0) {
dvander@27	1573	/* just clear the entire table */
dvander@27	1574	delete_docstringtable();
dvander@27	1575	return;
dvander@27	1576	} /* if */
dvander@27	1577	/* in the case of state functions, multiple documentation sections may
dvander@27	1578	* appear; we should concatenate these
dvander@27	1579	* (with forward declarations, this is also already the case, so the assertion
dvander@27	1580	* below is invalid)
dvander@27	1581	*/
dvander@27	1582	// assert(sym==NULL \|\| sym->documentation==NULL \|\| sym->states!=NULL);
dvander@27	1583
dvander@27	1584	/* first check the size */
dvander@27	1585	length=0;
dvander@27	1586	for (line=0; (str=get_docstring(line))!=NULL && *str!=sDOCSEP; line++) {
dvander@27	1587	if (length>0)
dvander@27	1588	length++; /* count 1 extra for a separating space */
dvander@27	1589	length+=strlen(str);
dvander@27	1590	} /* for */
dvander@27	1591	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1592	length += strlen(sc_documentation) + 1 + 4; /* plus 4 for "<p/>" */
dvander@27	1593	assert(length>strlen(sc_documentation));
dvander@27	1594	} /* if */
dvander@27	1595
dvander@27	1596	if (length>0) {
dvander@27	1597	/* allocate memory for the documentation */
dvander@27	1598	if (sym!=NULL && sym->documentation!=NULL)
dvander@27	1599	length+=strlen(sym->documentation) + 1 + 4;/* plus 4 for "<p/>" */
dvander@27	1600	doc=(char)malloc((length+1)sizeof(char));
dvander@27	1601	if (doc!=NULL) {
dvander@27	1602	/* initialize string or concatenate */
dvander@27	1603	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1604	strcpy(doc,sc_documentation);
dvander@27	1605	strcat(doc,"<p/>");
dvander@27	1606	} else if (sym!=NULL && sym->documentation!=NULL) {
dvander@27	1607	strcpy(doc,sym->documentation);
dvander@27	1608	strcat(doc,"<p/>");
dvander@27	1609	free(sym->documentation);
dvander@27	1610	sym->documentation=NULL;
dvander@27	1611	} else {
dvander@27	1612	doc[0]='\0';
dvander@27	1613	} /* if */
dvander@27	1614	/* collect all documentation */
dvander@27	1615	while ((str=get_docstring(0))!=NULL && *str!=sDOCSEP) {
dvander@27	1616	if (doc[0]!='\0')
dvander@27	1617	strcat(doc," ");
dvander@27	1618	strcat(doc,str);
dvander@27	1619	delete_docstring(0);
dvander@27	1620	} /* while */
dvander@27	1621	if (str!=NULL) {
dvander@27	1622	/* also delete the separator */
dvander@27	1623	assert(*str==sDOCSEP);
dvander@27	1624	delete_docstring(0);
dvander@27	1625	} /* if */
dvander@27	1626	if (sym!=NULL) {
dvander@27	1627	assert(sym->documentation==NULL);
dvander@27	1628	sym->documentation=doc;
dvander@27	1629	} else {
dvander@27	1630	if (sc_documentation!=NULL)
dvander@27	1631	free(sc_documentation);
dvander@27	1632	sc_documentation=doc;
dvander@27	1633	} /* if */
dvander@27	1634	} /* if */
dvander@27	1635	} else {
dvander@27	1636	/* delete an empty separator, if present */
dvander@27	1637	if ((str=get_docstring(0))!=NULL && *str==sDOCSEP)
dvander@27	1638	delete_docstring(0);
dvander@27	1639	} /* if */
dvander@27	1640	}
dvander@27	1641
dvander@27	1642	static void insert_docstring_separator(void)
dvander@27	1643	{
dvander@27	1644	char sep[2]={sDOCSEP,'\0'};
dvander@27	1645	insert_docstring(sep);
dvander@27	1646	}
dvander@27	1647	#else
dvander@27	1648	#define sc_attachdocumentation(s) (void)(s)
dvander@27	1649	#define insert_docstring_separator()
dvander@27	1650	#endif
dvander@27	1651
dvander@27	1652	static void declfuncvar(int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1653	{
dvander@27	1654	char name[sNAMEMAX+11];
dvander@167	1655	int tok,tag=0;
dvander@27	1656	char *str;
dvander@27	1657	cell val;
dvander@27	1658	int invalidfunc;
dvander@167	1659	pstruct_t *pstruct = NULL;
dvander@167	1660
dvander@167	1661	tok=lex(&val,&str);
dvander@167	1662	if (tok == tLABEL) {
dvander@167	1663	pstruct=pstructs_find(str);
dvander@167	1664	tag=pc_addtag(str);
dvander@167	1665	} else {
dvander@167	1666	lexpush();
dvander@167	1667	}
dvander@27	1668	tok=lex(&val,&str);
dvander@27	1669	/* if we arrived here, this may not be a declaration of a native function
dvander@27	1670	* or variable
dvander@27	1671	*/
dvander@27	1672	if (tok==tNATIVE) {
dvander@27	1673	error(42); /* invalid combination of class specifiers */
dvander@27	1674	return;
dvander@27	1675	} /* if */
dvander@27	1676
dvander@27	1677	if (tok!=tSYMBOL && tok!=tOPERATOR) {
dvander@27	1678	lexpush();
dvander@27	1679	needtoken(tSYMBOL);
dvander@27	1680	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1681	litidx=0; /* drop the literal queue too */
dvander@27	1682	return;
dvander@27	1683	} /* if */
dvander@27	1684	if (tok==tOPERATOR) {
dvander@27	1685	lexpush(); /* push "operator" keyword back (for later analysis) */
dvander@27	1686	if (!newfunc(NULL,tag,fpublic,fstatic,fstock)) {
dvander@27	1687	error(10); /* illegal function or declaration */
dvander@27	1688	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1689	litidx=0; /* drop the literal queue too */
dvander@27	1690	} /* if */
dvander@27	1691	} else {
dvander@27	1692	/* so tok is tSYMBOL */
dvander@27	1693	assert(strlen(str)<=sNAMEMAX);
dvander@27	1694	strcpy(name,str);
dvander@27	1695	/* only variables can be "const" or both "public" and "stock" */
dvander@27	1696	invalidfunc= fconst \|\| (fpublic && fstock);
dvander@27	1697	if (invalidfunc \|\| !newfunc(name,tag,fpublic,fstatic,fstock)) {
dvander@27	1698	/* if not a function, try a global variable */
dvander@167	1699	if (pstruct) {
dvander@167	1700	declstructvar(name,fpublic,pstruct);
dvander@167	1701	} else {
dvander@167	1702	declglb(name,tag,fpublic,fstatic,fstock,fconst);
dvander@167	1703	}
dvander@27	1704	} /* if */
dvander@27	1705	} /* if */
dvander@27	1706	}
dvander@27	1707
dvander@167	1708	/* declstruct - declare global struct symbols
dvander@167	1709	*
dvander@167	1710	* global references: glb_declared (altered)
dvander@167	1711	*/
dvander@167	1712	static void declstructvar(char firstname,int fpublic, pstruct_t pstruct)
dvander@167	1713	{
dvander@167	1714	char name[sNAMEMAX+1];
dvander@167	1715	int tok,i;
dvander@167	1716	cell val;
dvander@167	1717	char *str;
dvander@167	1718	int cur_litidx = 0;
dvander@167	1719	cell values, found;
dvander@167	1720	int usage;
dvander@169	1721	symbol mysym,sym;
dvander@167	1722
dvander@167	1723	strcpy(name, firstname);
dvander@167	1724
dvander@167	1725	values = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1726	found = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1727
dvander@167	1728	memset(found, 0, sizeof(cell) * pstruct->argcount);
dvander@167	1729
dvander@169	1730	//:TODO: Make this work with stock
dvander@167	1731
dvander@167	1732	/**
dvander@167	1733	* Lastly, very lastly, we will insert a copy of this variable.
dvander@167	1734	* This is soley to expose the pubvar.
dvander@167	1735	*/
dvander@169	1736	usage = uREAD\|uCONST\|uSTRUCT;
dvander@167	1737	if (fpublic)
dvander@167	1738	{
dvander@167	1739	usage \|= uPUBLIC;
dvander@167	1740	}
dvander@169	1741	mysym = NULL;
dvander@169	1742	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@169	1743	{
dvander@169	1744	if (strcmp(name, sym->name) == 0)
dvander@169	1745	{
dvander@169	1746	if ((sym->usage & uSTRUCT) && sym->vclass == sGLOBAL)
dvander@169	1747	{
dvander@169	1748	if (sym->usage & uDEFINE)
dvander@169	1749	{
dvander@169	1750	error(21, name);
dvander@169	1751	} else {
dvander@169	1752	if (sym->usage & uPUBLIC && !fpublic)
dvander@169	1753	{
dvander@169	1754	error(42);
dvander@169	1755	}
dvander@169	1756	}
dvander@169	1757	} else {
dvander@169	1758	error(21, name);
dvander@169	1759	}
dvander@169	1760	mysym = sym;
dvander@169	1761	break;
dvander@169	1762	}
dvander@169	1763	}
dvander@169	1764	if (!mysym)
dvander@169	1765	{
dvander@169	1766	mysym=addsym(name, 0, iVARIABLE, sGLOBAL, pc_addtag(pstruct->name), usage);
dvander@169	1767	}
dvander@169	1768
dvander@169	1769	if (!matchtoken('='))
dvander@167	1770	{
dvander@167	1771	matchtoken(';');
dvander@169	1772	/* Mark it as undefined instead */
dvander@169	1773	mysym->usage = uSTOCK\|uSTRUCT;
dvander@167	1774	return;
dvander@169	1775	} else {
dvander@169	1776	mysym->usage = usage;
dvander@167	1777	}
dvander@167	1778	needtoken('{');
dvander@167	1779	do
dvander@167	1780	{
dvander@167	1781	structarg_t *arg;
dvander@167	1782	/* Detect early exit */
dvander@167	1783	if (matchtoken('}'))
dvander@167	1784	{
dvander@167	1785	lexpush();
dvander@167	1786	break;
dvander@167	1787	}
dvander@167	1788	tok=lex(&val,&str);
dvander@167	1789	if (tok != tSYMBOL)
dvander@167	1790	{
dvander@167	1791	error(1, "-identifier-", str);
dvander@167	1792	continue;
dvander@167	1793	}
dvander@167	1794	arg=pstructs_getarg(pstruct,str);
dvander@167	1795	if (arg == NULL)
dvander@167	1796	{
ds@841	1797	error(96, str, sym->name);
dvander@167	1798	}
dvander@167	1799	needtoken('=');
dvander@167	1800	cur_litidx = litidx;
dvander@167	1801	tok=lex(&val,&str);
dvander@167	1802	if (!arg)
dvander@167	1803	{
dvander@167	1804	continue;
dvander@167	1805	}
dvander@167	1806	if (tok == tSTRING)
dvander@167	1807	{
dvander@167	1808	assert(litidx != 0);
dvander@167	1809	if (arg->dimcount != 1)
dvander@167	1810	{
dvander@167	1811	error(48);
dvander@167	1812	} else if (arg->tag != pc_tag_string) {
dvander@167	1813	error(213);
dvander@167	1814	}
dvander@167	1815	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1816	glb_declared += (litidx-cur_litidx);
dvander@167	1817	found[arg->index] = 1;
dvander@167	1818	} else if (tok == tNUMBER \|\| tok == tRATIONAL) {
dvander@167	1819	/* eat optional 'f' */
dvander@167	1820	matchtoken('f');
dvander@167	1821	if (arg->ident != iVARIABLE && arg->ident != iREFERENCE)
dvander@167	1822	{
dvander@167	1823	error(23);
dvander@167	1824	} else {
dvander@167	1825	if (arg->tag == pc_addtag("Float") && tok == tNUMBER \|\|
dvander@167	1826	arg->tag == 0 && tok == tRATIONAL)
dvander@167	1827	{
dvander@167	1828	error(213);
dvander@167	1829	}
dvander@167	1830	if (arg->ident == iVARIABLE)
dvander@167	1831	{
dvander@167	1832	values[arg->index] = val;
dvander@167	1833	} else if (arg->ident == iREFERENCE) {
dvander@167	1834	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1835	glb_declared += 1;
dvander@167	1836	litadd(val);
dvander@167	1837	cur_litidx = litidx;
dvander@167	1838	}
dvander@167	1839	found[arg->index] = 1;
dvander@167	1840	}
dvander@167	1841	} else if (tok == tSYMBOL) {
dvander@167	1842	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@167	1843	{
dvander@167	1844	if (sym->vclass != sGLOBAL)
dvander@167	1845	{
dvander@167	1846	continue;
dvander@167	1847	}
dvander@167	1848	if (strcmp(sym->name, str) == 0)
dvander@167	1849	{
dvander@167	1850	if (arg->ident == iREFERENCE && sym->ident != iVARIABLE)
dvander@167	1851	{
ds@841	1852	error(97, str);
dvander@167	1853	} else if (arg->ident == iARRAY) {
dvander@167	1854	if (sym->ident != iARRAY)
dvander@167	1855	{
ds@841	1856	error(97, str);
dvander@167	1857	} else {
dvander@167	1858	/* :TODO: We should check dimension sizes here... */
dvander@167	1859	}
dvander@167	1860	} else if (arg->ident == iREFARRAY) {
dvander@167	1861	if (sym->ident != iARRAY)
dvander@167	1862	{
ds@841	1863	error(97, str);
dvander@167	1864	}
dvander@167	1865	/* :TODO: Check dimension sizes! */
dvander@167	1866	} else {
ds@841	1867	error(97, str);
dvander@167	1868	}
dvander@167	1869	if (sym->tag != arg->tag)
dvander@167	1870	{
dvander@167	1871	error(213);
dvander@167	1872	}
dvander@167	1873	sym->usage \|= uREAD;
dvander@167	1874	values[arg->index] = sym->addr;
dvander@167	1875	found[arg->index] = 1;
dvander@167	1876	refer_symbol(sym, mysym);
dvander@167	1877	break;
dvander@167	1878	}
dvander@167	1879	}
dvander@167	1880	if (!sym)
dvander@167	1881	{
dvander@167	1882	error(17, str);
dvander@167	1883	}
dvander@167	1884	} else {
dvander@167	1885	error(1, "-identifier-", str);
dvander@167	1886	}
dvander@167	1887	} while (matchtoken(','));
dvander@167	1888	needtoken('}');
dvander@167	1889	matchtoken(';'); /* eat up optional semicolon */
dvander@167	1890
dvander@167	1891	for (i=0; i<pstruct->argcount; i++)
dvander@167	1892	{
dvander@167	1893	if (!found[i])
dvander@167	1894	{
dvander@167	1895	structarg_t *arg = pstruct->args[i];
dvander@167	1896	if (arg->ident == iREFARRAY)
dvander@167	1897	{
dvander@167	1898	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1899	glb_declared += 1;
dvander@167	1900	litadd(0);
dvander@167	1901	cur_litidx = litidx;
dvander@167	1902	} else if (arg->ident == iVARIABLE) {
dvander@167	1903	values[arg->index] = 0;
dvander@167	1904	} else {
dvander@167	1905	/* :TODO: broken for iARRAY! (unused tho) */
dvander@167	1906	}
dvander@167	1907	}
dvander@167	1908	}
dvander@167	1909
dvander@167	1910	mysym->addr = glb_declared * sizeof(cell);
dvander@167	1911	glb_declared += pstruct->argcount;
dvander@167	1912
dvander@167	1913	for (i=0; i<pstruct->argcount; i++)
dvander@167	1914	{
dvander@167	1915	litadd(values[i]);
dvander@167	1916	}
dvander@167	1917
dvander@167	1918	begdseg();
dvander@167	1919	dumplits();
dvander@167	1920	litidx=0;
dvander@167	1921
dvander@167	1922	free(found);
dvander@167	1923	free(values);
dvander@167	1924	}
dvander@167	1925
dvander@27	1926	/* declglb - declare global symbols
dvander@27	1927	*
dvander@27	1928	* Declare a static (global) variable. Global variables are stored in
dvander@27	1929	* the DATA segment.
dvander@27	1930	*
dvander@27	1931	* global references: glb_declared (altered)
dvander@27	1932	*/
dvander@27	1933	static void declglb(char *firstname,int firsttag,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1934	{
dvander@27	1935	int ident,tag,ispublic;
dvander@27	1936	int idxtag[sDIMEN_MAX];
dvander@27	1937	char name[sNAMEMAX+1];
dvander@27	1938	cell val,size,cidx;
dvander@27	1939	ucell address;
dvander@27	1940	int glb_incr;
dvander@27	1941	char *str;
dvander@27	1942	int dim[sDIMEN_MAX];
dvander@27	1943	int numdim;
dvander@286	1944	int slength=0;
dvander@27	1945	short filenum;
dvander@27	1946	symbol *sym;
dvander@27	1947	constvalue *enumroot;
dvander@27	1948	#if !defined NDEBUG
dvander@27	1949	cell glbdecl=0;
dvander@27	1950	#endif
dvander@27	1951
dvander@27	1952	assert(!fpublic \|\| !fstatic); /* may not both be set */
dvander@27	1953	insert_docstring_separator(); /* see comment in newfunc() */
dvander@27	1954	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	1955	do {
dvander@27	1956	size=1; /* single size (no array) */
dvander@27	1957	numdim=0; /* no dimensions */
dvander@27	1958	ident=iVARIABLE;
dvander@27	1959	if (firstname!=NULL) {
dvander@27	1960	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	1961	strcpy(name,firstname); /* save symbol name */
dvander@27	1962	tag=firsttag;
dvander@27	1963	firstname=NULL;
dvander@27	1964	} else {
dvander@27	1965	tag=pc_addtag(NULL);
dvander@27	1966	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	1967	error(20,str); /* invalid symbol name */
dvander@27	1968	assert(strlen(str)<=sNAMEMAX);
dvander@27	1969	strcpy(name,str); /* save symbol name */
dvander@27	1970	} /* if */
dvander@27	1971	ispublic=fpublic;
dvander@27	1972	if (name[0]==PUBLIC_CHAR) {
dvander@27	1973	ispublic=TRUE; /* implicitly public variable */
dvander@27	1974	assert(!fstatic);
dvander@27	1975	} /* if */
dvander@118	1976	while (matchtoken('[')) {
dvander@27	1977	ident=iARRAY;
dvander@27	1978	if (numdim == sDIMEN_MAX) {
dvander@27	1979	error(53); /* exceeding maximum number of dimensions */
dvander@27	1980	return;
dvander@27	1981	} /* if */
dvander@27	1982	size=needsub(&idxtag[numdim],&enumroot); /* get size; size==0 for "var[]" */
dvander@27	1983	#if INT_MAX < LONG_MAX
dvander@27	1984	if (size > INT_MAX)
ds@841	1985	error(125); /* overflow, exceeding capacity */
dvander@27	1986	#endif
dvander@127	1987	#if 0 /* We don't actually care */
dvander@27	1988	if (ispublic)
dvander@27	1989	error(56,name); /* arrays cannot be public */
dvander@127	1990	#endif
dvander@27	1991	dim[numdim++]=(int)size;
dvander@27	1992	} /* while */
dvander@286	1993	if (ident == iARRAY && tag == pc_tag_string && dim[numdim-1]) {
dvander@286	1994	slength=dim[numdim-1];
dvander@151	1995	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@286	1996	}
dvander@27	1997	assert(sc_curstates==0);
dvander@27	1998	sc_curstates=getstates(name);
dvander@27	1999	if (sc_curstates<0) {
dvander@27	2000	error(85,name); /* empty state list on declaration */
dvander@27	2001	sc_curstates=0;
dvander@27	2002	} else if (sc_curstates>0 && ispublic) {
dvander@27	2003	error(88,name); /* public variables may not have states */
dvander@27	2004	sc_curstates=0;
dvander@27	2005	} /* if */
dvander@27	2006	sym=findconst(name,NULL);
dvander@27	2007	if (sym==NULL) {
dvander@27	2008	sym=findglb(name,sSTATEVAR);
dvander@27	2009	/* if a global variable without states is found and this declaration has
dvander@27	2010	* states, the declaration is okay
dvander@27	2011	*/
dvander@27	2012	if (sym!=NULL && sym->states==NULL && sc_curstates>0)
dvander@27	2013	sym=NULL; /* set to NULL, we found the global variable */
dvander@27	2014	if (sc_curstates>0 && findglb(name,sGLOBAL)!=NULL)
dvander@27	2015	error(233,name); /* state variable shadows a global variable */
dvander@27	2016	} /* if */
dvander@27	2017	/* we have either:
dvander@27	2018	* a) not found a matching variable (or rejected it, because it was a shadow)
dvander@27	2019	* b) found a global variable and we were looking for that global variable
dvander@27	2020	* c) found a state variable in the automaton that we were looking for
dvander@27	2021	*/
dvander@27	2022	assert(sym==NULL
dvander@27	2023	\|\| sym->states==NULL && sc_curstates==0
dvander@27	2024	\|\| sym->states!=NULL && sym->next!=NULL && sym->states->next->index==sc_curstates);
dvander@27	2025	/* a state variable may only have a single id in its list (so either this
dvander@27	2026	* variable has no states, or it has a single list)
dvander@27	2027	*/
dvander@27	2028	assert(sym==NULL \|\| sym->states==NULL \|\| sym->states->next->next==NULL);
dvander@27	2029	/* it is okay for the (global) variable to exist, as long as it belongs to
dvander@27	2030	* a different automaton
dvander@27	2031	*/
dvander@27	2032	if (sym!=NULL && (sym->usage & uDEFINE)!=0)
dvander@27	2033	error(21,name); /* symbol already defined */
dvander@27	2034	/* if this variable is never used (which can be detected only in the
dvander@27	2035	* second stage), shut off code generation
dvander@27	2036	*/
dvander@27	2037	cidx=0; /* only to avoid a compiler warning */
dvander@27	2038	if (sc_status==statWRITE && sym!=NULL && (sym->usage & (uREAD \| uWRITTEN))==0) {
dvander@27	2039	sc_status=statSKIP;
dvander@27	2040	cidx=code_idx;
dvander@27	2041	#if !defined NDEBUG
dvander@27	2042	glbdecl=glb_declared;
dvander@27	2043	#endif
dvander@27	2044	} /* if */
dvander@27	2045	begdseg(); /* real (initialized) data in data segment */
dvander@27	2046	assert(litidx==0); /* literal queue should be empty */
dvander@27	2047	if (sc_alignnext) {
dvander@27	2048	litidx=0;
dvander@27	2049	aligndata(sc_dataalign);
dvander@27	2050	dumplits(); /* dump the literal queue */
dvander@27	2051	sc_alignnext=FALSE;
dvander@27	2052	litidx=0; /* global initial data is dumped, so restart at zero */
dvander@27	2053	} /* if */
dvander@27	2054	assert(litidx==0); /* literal queue should be empty (again) */
dvander@27	2055	initials(ident,tag,&size,dim,numdim,enumroot);/* stores values in the literal queue */
dvander@510	2056	if (tag == pc_tag_string && (numdim == 1) && !dim[numdim-1]) {
dvander@510	2057	slength = glbstringread;
dvander@510	2058	}
dvander@27	2059	assert(size>=litidx);
dvander@27	2060	if (numdim==1)
dvander@27	2061	dim[0]=(int)size;
dvander@27	2062	/* before dumping the initial values (or zeros) check whether this variable
dvander@27	2063	* overlaps another
dvander@27	2064	*/
dvander@27	2065	if (sc_curstates>0) {
dvander@27	2066	unsigned char *map;
dvander@27	2067
dvander@27	2068	if (litidx!=0)
dvander@27	2069	error(89,name); /* state variables may not be initialized */
dvander@27	2070	/* find an appropriate address for the state variable */
dvander@27	2071	/* assume that it cannot be found */
dvander@27	2072	address=sizeof(cell)*glb_declared;
dvander@27	2073	glb_incr=(int)size;
dvander@27	2074	/* use a memory map in which every cell occupies one bit */
dvander@27	2075	if (glb_declared>0 && (map=(unsigned char*)malloc((glb_declared+7)/8))!=NULL) {
dvander@27	2076	int fsa=state_getfsa(sc_curstates);
dvander@27	2077	symbol *sweep;
dvander@27	2078	cell sweepsize,addr;
dvander@27	2079	memset(map,0,(glb_declared+7)/8);
dvander@27	2080	assert(fsa>=0);
dvander@27	2081	/* fill in all variables belonging to this automaton */
dvander@27	2082	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2083	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2084	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2085	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2086	continue; /* a function or a constant */
dvander@27	2087	if ((sweep->usage & uDEFINE)==0)
dvander@27	2088	continue; /* undefined variable, ignore */
dvander@27	2089	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2090	continue; /* wrong automaton */
dvander@27	2091	/* when arrived here, this is a global variable, with states and
dvander@27	2092	* belonging to the same automaton as the variable we are declaring
dvander@27	2093	*/
dvander@27	2094	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2095	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2096	addr=sweep->addr/sizeof(cell);
dvander@27	2097	/* mark this address range */
dvander@27	2098	while (sweepsize-->0) {
dvander@27	2099	map[addr/8] \|= (unsigned char)(1 << (addr % 8));
dvander@27	2100	addr++;
dvander@27	2101	} /* while */
dvander@27	2102	} /* for */
dvander@27	2103	/* go over it again, clearing any ranges that have conflicts */
dvander@27	2104	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2105	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2106	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2107	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2108	continue; /* a function or a constant */
dvander@27	2109	if ((sweep->usage & uDEFINE)==0)
dvander@27	2110	continue; /* undefined variable, ignore */
dvander@27	2111	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2112	continue; /* wrong automaton */
dvander@27	2113	/* when arrived here, this is a global variable, with states and
dvander@27	2114	* belonging to the same automaton as the variable we are declaring
dvander@27	2115	*/
dvander@27	2116	/* if the lists of states of the existing variable and the new
dvander@27	2117	* variable have a non-empty intersection, this is not a suitable
dvander@27	2118	* overlap point -> wipe the address range
dvander@27	2119	*/
dvander@27	2120	if (state_conflict_id(sc_curstates,sweep->states->next->index)) {
dvander@27	2121	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2122	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2123	addr=sweep->addr/sizeof(cell);
dvander@27	2124	/* mark this address range */
dvander@27	2125	while (sweepsize-->0) {
dvander@27	2126	map[addr/8] &= (unsigned char)(~(1 << (addr % 8)));
dvander@27	2127	addr++;
dvander@27	2128	} /* while */
dvander@27	2129	} /* if */
dvander@27	2130	} /* for */
dvander@27	2131	/* now walk through the map and find a starting point that is big enough */
dvander@27	2132	sweepsize=0;
dvander@27	2133	for (addr=0; addr<glb_declared; addr++) {
dvander@27	2134	if ((map[addr/8] & (1 << (addr % 8)))==0)
dvander@27	2135	continue;
dvander@27	2136	for (sweepsize=addr+1; sweepsize<glb_declared; sweepsize++) {
dvander@27	2137	if ((map[sweepsize/8] & (1 << (sweepsize % 8)))==0)
dvander@27	2138	break; /* zero bit found, skip this range */
dvander@27	2139	if (sweepsize-addr>=size)
dvander@27	2140	break; /* fitting range found, no need to search further */
dvander@27	2141	} /* for */
dvander@27	2142	if (sweepsize-addr>=size)
dvander@27	2143	break; /* fitting range found, no need to search further */
dvander@27	2144	addr=sweepsize;
dvander@27	2145	} /* for */
dvander@27	2146	free(map);
dvander@27	2147	if (sweepsize-addr>=size) {
dvander@27	2148	address=sizeof(cell)addr; / fitting range found, set it */
dvander@27	2149	glb_incr=0;
dvander@27	2150	} /* if */
dvander@27	2151	} /* if */
dvander@27	2152	} else {
dvander@27	2153	address=sizeof(cell)*glb_declared;
dvander@27	2154	glb_incr=(int)size;
dvander@27	2155	} /* if */
dvander@1046	2156	if (size != CELL_MAX && address==sizeof(cell)*glb_declared) {
dvander@27	2157	dumplits(); /* dump the literal queue */
dvander@27	2158	dumpzero((int)size-litidx);
dvander@27	2159	} /* if */
dvander@27	2160	litidx=0;
dvander@27	2161	if (sym==NULL) { /* define only if not yet defined */
dvander@286	2162	sym=addvariable2(name,address,ident,sGLOBAL,tag,dim,numdim,idxtag,slength);
dvander@27	2163	if (sc_curstates>0)
dvander@27	2164	attachstatelist(sym,sc_curstates);
dvander@27	2165	} else { /* if declared but not yet defined, adjust the variable's address */
dvander@27	2166	assert(sym->states==NULL && sc_curstates==0
dvander@27	2167	\|\| sym->states->next!=NULL && sym->states->next->index==sc_curstates && sym->states->next->next==NULL);
dvander@27	2168	sym->addr=address;
dvander@27	2169	sym->codeaddr=code_idx;
dvander@27	2170	sym->usage\|=uDEFINE;
dvander@27	2171	} /* if */
dvander@27	2172	assert(sym!=NULL);
dvander@27	2173	sc_curstates=0;
dvander@27	2174	if (ispublic)
dvander@127	2175	sym->usage\|=uPUBLIC\|uREAD;
dvander@27	2176	if (fconst)
dvander@27	2177	sym->usage\|=uCONST;
dvander@27	2178	if (fstock)
dvander@27	2179	sym->usage\|=uSTOCK;
dvander@27	2180	if (fstatic)
dvander@27	2181	sym->fnumber=filenum;
dvander@27	2182	sc_attachdocumentation(sym);/* attach any documenation to the variable */
dvander@27	2183	if (sc_status==statSKIP) {
dvander@27	2184	sc_status=statWRITE;
dvander@27	2185	code_idx=cidx;
dvander@27	2186	assert(glb_declared==glbdecl);
dvander@27	2187	} else {
dvander@27	2188	glb_declared+=glb_incr; /* add total number of cells (if added to the end) */
dvander@27	2189	} /* if */
dvander@27	2190	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2191	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2192	}
dvander@27	2193
dvander@27	2194	/* declloc - declare local symbols
dvander@27	2195	*
dvander@27	2196	* Declare local (automatic) variables. Since these variables are relative
dvander@27	2197	* to the STACK, there is no switch to the DATA segment. These variables
dvander@27	2198	* cannot be initialized either.
dvander@27	2199	*
dvander@27	2200	* global references: declared (altered)
dvander@27	2201	* funcstatus (referred to only)
dvander@27	2202	*/
dvander@27	2203	static int declloc(int fstatic)
dvander@27	2204	{
dvander@27	2205	int ident,tag;
dvander@27	2206	int idxtag[sDIMEN_MAX];
dvander@27	2207	char name[sNAMEMAX+1];
dvander@27	2208	symbol *sym;
dvander@152	2209	constvalue *enumroot=NULL;
dvander@27	2210	cell val,size;
dvander@27	2211	char *str;
dvander@27	2212	value lval = {0};
dvander@27	2213	int cur_lit=0;
dvander@27	2214	int dim[sDIMEN_MAX];
dvander@27	2215	int numdim;
dvander@27	2216	int fconst;
dvander@27	2217	int staging_start;
dvander@286	2218	int slength = 0;
dvander@27	2219
dvander@27	2220	fconst=matchtoken(tCONST);
dvander@27	2221	do {
dvander@27	2222	ident=iVARIABLE;
dvander@27	2223	size=1;
dvander@510	2224	slength=0;
dvander@27	2225	numdim=0; /* no dimensions */
dvander@27	2226	tag=pc_addtag(NULL);
dvander@27	2227	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	2228	error(20,str); /* invalid symbol name */
dvander@27	2229	assert(strlen(str)<=sNAMEMAX);
dvander@27	2230	strcpy(name,str); /* save symbol name */
dvander@27	2231	if (name[0]==PUBLIC_CHAR)
dvander@27	2232	error(56,name); /* local variables cannot be public */
dvander@27	2233	/* Note: block locals may be named identical to locals at higher
dvander@27	2234	* compound blocks (as with standard C); so we must check (and add)
dvander@27	2235	* the "nesting level" of local variables to verify the
dvander@27	2236	* multi-definition of symbols.
dvander@27	2237	*/
dvander@27	2238	if ((sym=findloc(name))!=NULL && sym->compound==nestlevel)
dvander@27	2239	error(21,name); /* symbol already defined */
dvander@27	2240	/* Although valid, a local variable whose name is equal to that
dvander@27	2241	* of a global variable or to that of a local variable at a lower
dvander@27	2242	* level might indicate a bug.
dvander@27	2243	*/
dvander@27	2244	if ((sym=findloc(name))!=NULL && sym->compound!=nestlevel \|\| findglb(name,sGLOBAL)!=NULL)
dvander@27	2245	error(219,name); /* variable shadows another symbol */
dvander@118	2246	if (matchtoken('[')) {
dvander@152	2247	int _index;
dvander@152	2248	cell _code;
dvander@152	2249	int dim_ident;
dvander@152	2250	symbol *dim_sym;
dvander@152	2251	value dim_val;
dvander@152	2252	int all_constant = 1;
dvander@152	2253	int _staging = staging;
dvander@152	2254
dvander@152	2255	if (!_staging)
dvander@152	2256	stgset(TRUE);
dvander@152	2257	stgget(&_index, &_code);
dvander@152	2258
dvander@118	2259	do {
dvander@118	2260	if (numdim == sDIMEN_MAX) {
dvander@118	2261	error(53); /* exceeding maximum number of dimensions */
dvander@152	2262	return (all_constant ? iARRAY : iREFARRAY);
dvander@200	2263	} else if (numdim) { /* if */
dvander@200	2264	/* If we have a dimension on the stack, push it */
dvander@200	2265	pushreg(sPRI);
dvander@200	2266	}
dvander@152	2267	if (matchtoken(']')) {
dvander@534	2268	idxtag[numdim] = 0;
dvander@534	2269	dim[numdim] = 0;
dvander@534	2270	numdim++;
dvander@152	2271	continue;
dvander@152	2272	}
dvander@152	2273	dim_ident = doexpr2(TRUE,FALSE,FALSE,FALSE,&idxtag[numdim],&dim_sym,0,&dim_val);
dvander@152	2274	if (dim_ident == iVARIABLE \|\| dim_ident == iEXPRESSION \|\| dim_ident == iARRAYCELL) {
dvander@152	2275	all_constant = 0;
dvander@118	2276	} else if (dim_ident == iCONSTEXPR) {
dvander@152	2277	dim[numdim] = dim_val.constval;
dvander@152	2278	/* :TODO: :URGENT: Make sure this still works */
dvander@152	2279	if (dim_sym && dim_sym->usage & uENUMROOT)
dvander@152	2280	enumroot = dim_sym->dim.enumlist;
dvander@152	2281	idxtag[numdim] = dim_sym ? dim_sym->tag : 0;
dvander@152	2282	#if INT_MAX < LONG_MAX
dvander@152	2283	if (dim[numdim] > INT_MAX)
ds@841	2284	error(125); /* overflow, exceeding capacity */
dvander@152	2285	#endif
dvander@118	2286	} else {
dvander@152	2287	error(29); /* invalid expression, assumed 0 */
dvander@118	2288	}
dvander@119	2289	numdim++;
dvander@152	2290	needtoken(']');
dvander@152	2291	} while (matchtoken('['));
dvander@152	2292	if (all_constant) {
dvander@152	2293	/* Change the last dimension to be based on chars instead if we have a string */
dvander@286	2294	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@286	2295	slength = dim[numdim-1];
dvander@153	2296	dim[numdim-1] = (dim[numdim-1] + sizeof(cell)-1) / sizeof(cell);
dvander@286	2297	}
dvander@152	2298	/* Scrap the code generated */
dvander@152	2299	ident = iARRAY;
dvander@152	2300	stgdel(_index, _code);
dvander@152	2301	} else {
dvander@200	2302	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@200	2303	stradjust(sPRI);
dvander@200	2304	}
dvander@200	2305	pushreg(sPRI);
dvander@152	2306	memset(dim, 0, sizeof(int)*sDIMEN_MAX);
dvander@152	2307	ident = iREFARRAY;
dvander@152	2308	genarray(numdim, autozero);
dvander@152	2309	}
dvander@152	2310	stgout(_index);
dvander@152	2311	if (!_staging)
dvander@152	2312	stgset(FALSE);
dvander@118	2313	}
dvander@27	2314	if (getstates(name))
dvander@27	2315	error(88,name); /* local variables may not have states */
dvander@27	2316	if (ident==iARRAY \|\| fstatic) {
dvander@27	2317	if (sc_alignnext) {
dvander@27	2318	aligndata(sc_dataalign);
dvander@27	2319	sc_alignnext=FALSE;
dvander@27	2320	} /* if */
dvander@27	2321	cur_lit=litidx; /* save current index in the literal table */
dvander@510	2322	if (numdim && !dim[numdim-1])
dvander@510	2323	size = 0;
dvander@27	2324	initials(ident,tag,&size,dim,numdim,enumroot);
dvander@510	2325	if (tag == pc_tag_string && (numdim == 1) && !dim[numdim-1]) {
dvander@510	2326	slength = glbstringread;
dvander@510	2327	}
dvander@27	2328	if (size==0)
dvander@27	2329	return ident; /* error message already given */
dvander@27	2330	if (numdim==1)
dvander@27	2331	dim[0]=(int)size;
dvander@118	2332	}
dvander@27	2333	/* reserve memory (on the stack) for the variable */
dvander@27	2334	if (fstatic) {
dvander@27	2335	/* write zeros for uninitialized fields */
dvander@27	2336	while (litidx<cur_lit+size)
dvander@27	2337	litadd(0);
dvander@286	2338	sym=addvariable2(name,(cur_lit+glb_declared)*sizeof(cell),ident,sSTATIC,
dvander@286	2339	tag,dim,numdim,idxtag,slength);
dvander@118	2340	} else if (ident!=iREFARRAY) {
dvander@27	2341	declared+=(int)size; /* variables are put on stack, adjust "declared" */
dvander@286	2342	sym=addvariable2(name,-declared*sizeof(cell),ident,sLOCAL,tag,
dvander@286	2343	dim,numdim,idxtag,slength);
dvander@27	2344	if (ident==iVARIABLE) {
dvander@27	2345	assert(!staging);
dvander@27	2346	stgset(TRUE); /* start stage-buffering */
dvander@27	2347	assert(stgidx==0);
dvander@27	2348	staging_start=stgidx;
dvander@27	2349	} /* if */
dvander@27	2350	markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@27	2351	modstk(-(int)size*sizeof(cell));
dvander@117	2352	markstack(MEMUSE_STATIC, size);
dvander@27	2353	assert(curfunc!=NULL);
dvander@27	2354	assert((curfunc->usage & uNATIVE)==0);
dvander@27	2355	if (curfunc->x.stacksize<declared+1)
dvander@27	2356	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@118	2357	} else if (ident==iREFARRAY) {
dvander@118	2358	declared+=1; /* one cell for address */
dvander@118	2359	sym=addvariable(name,-declared*sizeof(cell),ident,sLOCAL,tag,dim,numdim,idxtag);
dvander@118	2360	//markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@118	2361	/* genarray() pushes the address onto the stack, so we don't need to call modstk() here! */
dvander@118	2362	markheap(MEMUSE_DYNAMIC, 0);
dvander@119	2363	markstack(MEMUSE_STATIC, 1);
dvander@118	2364	assert(curfunc != NULL && ((curfunc->usage & uNATIVE) == 0));
dvander@118	2365	if (curfunc->x.stacksize<declared+1)
dvander@118	2366	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@27	2367	} /* if */
dvander@27	2368	/* now that we have reserved memory for the variable, we can proceed
dvander@27	2369	* to initialize it */
dvander@27	2370	assert(sym!=NULL); /* we declared it, it must be there */
dvander@27	2371	sym->compound=nestlevel; /* for multiple declaration/shadowing check */
dvander@27	2372	if (fconst)
dvander@27	2373	sym->usage\|=uCONST;
dvander@27	2374	if (!fstatic) { /* static variables already initialized */
dvander@27	2375	if (ident==iVARIABLE) {
dvander@27	2376	/* simple variable, also supports initialization */
dvander@27	2377	int ctag = tag; /* set to "tag" by default */
dvander@27	2378	int explicit_init=FALSE;/* is the variable explicitly initialized? */
dvander@151	2379	int cident=ident;
dvander@27	2380	if (matchtoken('=')) {
dvander@27	2381	if (!autozero)
dvander@27	2382	error(10);
dvander@151	2383	cident=doexpr(FALSE,FALSE,FALSE,FALSE,&ctag,NULL,TRUE);
dvander@27	2384	explicit_init=TRUE;
dvander@27	2385	} else {
dvander@27	2386	if (autozero)
dvander@27	2387	ldconst(0,sPRI); /* uninitialized variable, set to zero */
dvander@27	2388	} /* if */
dvander@27	2389	if (autozero) {
dvander@27	2390	/* now try to save the value (still in PRI) in the variable */
dvander@27	2391	lval.sym=sym;
dvander@27	2392	lval.ident=iVARIABLE;
dvander@27	2393	lval.constval=0;
dvander@27	2394	lval.tag=tag;
dvander@27	2395	check_userop(NULL,ctag,lval.tag,2,NULL,&ctag);
dvander@27	2396	store(&lval);
dvander@27	2397	markexpr(sEXPR,NULL,0); /* full expression ends after the store */
dvander@27	2398	}
dvander@27	2399	assert(staging); /* end staging phase (optimize expression) */
dvander@27	2400	stgout(staging_start);
dvander@27	2401	stgset(FALSE);
dvander@151	2402	if (!matchtag_string(cident, ctag) && !matchtag(tag,ctag,TRUE))
ds@844	2403	{
ds@844	2404	if (tag & FUNCTAG)
ds@844	2405	error(100); /* error - function prototypes do not match */
ds@844	2406	else
ds@844	2407	error(213); /* warning - tag mismatch */
ds@844	2408	}
dvander@27	2409	/* if the variable was not explicitly initialized, reset the
dvander@27	2410	* "uWRITTEN" flag that store() set */
dvander@27	2411	if (!explicit_init)
dvander@27	2412	sym->usage &= ~uWRITTEN;
dvander@118	2413	} else if (ident!=iREFARRAY) {
dvander@27	2414	/* an array */
dvander@27	2415	assert(cur_lit>=0 && cur_lit<=litidx && litidx<=litmax);
dvander@27	2416	assert(size>0 && size>=sym->dim.array.length);
dvander@27	2417	assert(numdim>1 \|\| size==sym->dim.array.length);
dvander@27	2418	if (autozero) {
dvander@27	2419	/* final literal values that are zero make no sense to put in the literal
dvander@27	2420	* pool, because values get zero-initialized anyway; we check for this,
dvander@27	2421	* because users often explicitly initialize strings to ""
dvander@27	2422	*/
dvander@27	2423	while (litidx>cur_lit && litq[litidx-1]==0)
dvander@27	2424	litidx--;
dvander@27	2425	/* if the array is not completely filled, set all values to zero first */
dvander@27	2426	if (litidx-cur_lit<size && (ucell)size<CELL_MAX)
dvander@27	2427	fillarray(sym,size*sizeof(cell),0);
dvander@27	2428	}
dvander@27	2429	if (cur_lit<litidx) {
dvander@27	2430	/* check whether the complete array is set to a single value; if
dvander@27	2431	* it is, more compact code can be generated */
dvander@27	2432	cell first=litq[cur_lit];
dvander@27	2433	int i;
dvander@27	2434	for (i=cur_lit; i<litidx && litq[i]==first; i++)
dvander@27	2435	/* nothing */;
dvander@27	2436	if (i==litidx) {
dvander@27	2437	/* all values are the same */
dvander@27	2438	fillarray(sym,(litidx-cur_lit)*sizeof(cell),first);
dvander@27	2439	litidx=cur_lit; /* reset literal table */
dvander@27	2440	} else {
dvander@27	2441	/* copy the literals to the array */
dvander@27	2442	ldconst((cur_lit+glb_declared)*sizeof(cell),sPRI);
dvander@27	2443	copyarray(sym,(litidx-cur_lit)*sizeof(cell));
dvander@27	2444	} /* if */
dvander@27	2445	} /* if */
dvander@27	2446	} /* if */
dvander@27	2447	} /* if */
dvander@27	2448	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2449	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2450	return ident;
dvander@27	2451	}
dvander@27	2452
dvander@27	2453	/* this function returns the maximum value for a cell in case of an error
dvander@27	2454	* (invalid dimension).
dvander@27	2455	*/
dvander@27	2456	static cell calc_arraysize(int dim[],int numdim,int cur)
dvander@27	2457	{
dvander@27	2458	cell subsize;
dvander@27	2459	ucell newsize;
dvander@27	2460
dvander@27	2461	/* the return value is in cells, not bytes */
dvander@27	2462	assert(cur>=0 && cur<=numdim);
dvander@27	2463	if (cur==numdim)
dvander@27	2464	return 0;
dvander@27	2465	subsize=calc_arraysize(dim,numdim,cur+1);
dvander@27	2466	newsize=dim[cur]+dim[cur]*subsize;
dvander@842	2467	if ((ucell)subsize>=CELL_MAX \|\| newsize>=CELL_MAX \|\| newsize*sizeof(cell)>=CELL_MAX)
dvander@27	2468	return CELL_MAX;
dvander@27	2469	return newsize;
dvander@27	2470	}
dvander@27	2471
dvander@1472	2472	static cell gen_indirection_vecs(array_info_t *ar, int dim, cell cur_offs)
dvander@1472	2473	{
dvander@1472	2474	int i;
dvander@1472	2475	cell write_offs = cur_offs;
dvander@1472	2476	cell *data_offs = ar->data_offs;
dvander@1472	2477
dvander@1472	2478	cur_offs += ar->dim_list[dim];
dvander@1472	2479
dvander@1472	2480	/**
dvander@1472	2481	* Dimension n-x where x > 2 will have sub-vectors.
dvander@1472	2482	* Otherwise, we just need to reference the data section.
dvander@1472	2483	*/
dvander@1472	2484	if (ar->dim_count > 2 && dim < ar->dim_count - 2)
dvander@1472	2485	{
dvander@1472	2486	/**
dvander@1472	2487	* For each index at this dimension, write offstes to our sub-vectors.
dvander@1472	2488	* After we write one sub-vector, we generate its sub-vectors recursively.
dvander@1472	2489	* At the end, we're given the next offset we can use.
dvander@1472	2490	*/
dvander@1472	2491	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2492	{
dvander@1472	2493	ar->base[write_offs] = (cur_offs - write_offs) * sizeof(cell);
dvander@1472	2494	write_offs++;
dvander@1472	2495	ar->cur_dims[dim] = i;
dvander@1472	2496	cur_offs = gen_indirection_vecs(ar, dim + 1, cur_offs);
dvander@1472	2497	}
dvander@1472	2498	} else if (ar->dim_count > 1) {
dvander@1472	2499	/**
dvander@1472	2500	* In this section, there are no sub-vectors, we need to write offsets
dvander@1472	2501	* to the data. This is separate so the data stays in one big chunk.
dvander@1472	2502	* The data offset will increment by the size of the last dimension,
dvander@1472	2503	* because that is where the data is finally computed as. But the last
dvander@1472	2504	* dimension can be of variable size, so we have to detect that.
dvander@1472	2505	*/
dvander@1472	2506	if (ar->dim_list[dim + 1] == 0)
dvander@1472	2507	{
dvander@1472	2508	int vec_start = 0;
dvander@1472	2509
dvander@1472	2510	/**
dvander@1472	2511	* Using the precalculated offsets, compute an index into the last
dvander@1472	2512	* dimension array.
dvander@1472	2513	*/
dvander@1472	2514	for (i = 0; i < dim; i++)
dvander@1472	2515	{
dvander@1472	2516	vec_start += ar->cur_dims[i] * ar->dim_offs_precalc[i];
dvander@1472	2517	}
dvander@1472	2518
dvander@1472	2519	/**
dvander@1472	2520	* Now, vec_start points to a vector of last dimension offsets for
dvander@1472	2521	* the preceding dimension combination(s).
dvander@1472	2522	* I.e. (1,2,i,j) in [3][4][5][] will be:
dvander@1472	2523	* j = 1(45) + 2*(5) + i, and the parenthetical expressions are
dvander@1472	2524	* precalculated for us so we can easily generalize here.
dvander@1472	2525	*/
dvander@1472	2526	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2527	{
dvander@1472	2528	ar->base[write_offs] = (data_offs - write_offs) sizeof(cell);
dvander@1472	2529	write_offs++;
dvander@1472	2530	data_offs = data_offs + ar->lastdim_list[vec_start + i];
dvander@1472	2531	}
dvander@1472	2532	} else {
dvander@1472	2533	/**
dvander@1472	2534	* The last dimension size is constant. There's no extra work to
dvander@1472	2535	* compute the last dimension size.
dvander@1472	2536	*/
dvander@1472	2537	for (i = 0; i < ar->dim_list[dim]; i++)
dvander@1472	2538	{
dvander@1472	2539	ar->base[write_offs] = (data_offs - write_offs) sizeof(cell);
dvander@1472	2540	write_offs++;
dvander@1472	2541	data_offs = data_offs + ar->dim_list[dim + 1];
dvander@1472	2542	}
dvander@1472	2543	}
dvander@1472	2544	}
dvander@1472	2545
dvander@1472	2546	return cur_offs;
dvander@1472	2547	}
dvander@1472	2548
dvander@1472	2549	static cell calc_indirection(const int dim_list[], int dim_count, int dim)
dvander@1472	2550	{
dvander@1472	2551	cell size = dim_list[dim];
dvander@1472	2552
dvander@1472	2553	if (dim < dim_count - 2)
dvander@1472	2554	{
dvander@1472	2555	size += dim_list[dim] * calc_indirection(dim_list, dim_count, dim + 1);
dvander@1472	2556	}
dvander@1472	2557
dvander@1472	2558	return size;
dvander@1472	2559	}
dvander@1472	2560
dvander@1472	2561	static void adjust_indirectiontables(int dim[],int numdim,int cur,cell increment,
dvander@27	2562	int startlit,constvalue lastdim,int skipdim)
dvander@27	2563	{
dvander@1472	2564	/* Find how many cells the indirection table will be */
dvander@1472	2565	cell tbl_size;
dvander@1472	2566	int *dyn_list = NULL;
dvander@1472	2567	int cur_dims[sDIMEN_MAX];
dvander@1472	2568	cell dim_offset_precalc[sDIMEN_MAX];
dvander@1472	2569	array_info_t ar;
dvander@1472	2570
dvander@1472	2571	if (numdim == 1)
dvander@1472	2572	{
dvander@1472	2573	return;
dvander@1472	2574	}
dvander@1472	2575
dvander@1472	2576	tbl_size = calc_indirection(dim, numdim, 0);
dvander@1472	2577	memset(cur_dims, 0, sizeof(cur_dims));
dvander@1472	2578
dvander@1472	2579	/**
dvander@1472	2580	* Flatten the last dimension array list -- this makes
dvander@1472	2581	* things MUCH easier in the indirection calculator.
dvander@1472	2582	*/
dvander@1472	2583	if (lastdim)
dvander@1472	2584	{
dvander@1472	2585	int i;
dvander@1472	2586	constvalue *ld = lastdim->next;
dvander@1472	2587
dvander@1472	2588	/* Get the total number of last dimensions. */
dvander@1472	2589	for (i = 0; ld != NULL; i++, ld = ld->next)
dvander@1472	2590	{
dvander@1472	2591	/* Nothing */
dvander@1472	2592	}
dvander@1472	2593	/* Store them in an array instead of a linked list. */
dvander@1472	2594	dyn_list = (int )malloc(sizeof(int) i);
dvander@1472	2595	for (i = 0, ld = lastdim->next;
dvander@1472	2596	ld != NULL;
dvander@1472	2597	i++, ld = ld->next)
dvander@1472	2598	{
dvander@1472	2599	dyn_list[i] = ld->value;
dvander@1472	2600	}
dvander@1472	2601
dvander@1472	2602	/**
dvander@1472	2603	* Pre-calculate all of the offsets. This speeds up and simplifies
dvander@1472	2604	* the indirection process. For example, if we have an array like:
dvander@1472	2605	* [a][b][c][d][], and given (A,B,C), we want to find the size of
dvander@1472	2606	* the last dimension [A][B][C][i], we must do:
dvander@1472	2607	*
dvander@1472	2608	* list[A(bcd) + B(cd) + C(d) + i]
dvander@1472	2609	*
dvander@1472	2610	* Generalizing this algorithm in the indirection process is expensive,
dvander@1472	2611	* so we lessen the need for nested loops by pre-computing the parts:
dvander@1472	2612	* (bcd), (c*d), and (d).
dvander@1472	2613	*
dvander@1472	2614	* In other words, finding the offset to dimension N at index I is
dvander@1472	2615	* I * (S[N+1] * S[N+2] ... S[N+n-1]) where S[] is the size of dimension
dvander@1472	2616	* function, and n is the index of the last dimension.
dvander@1472	2617	*/
dvander@1472	2618	for (i = 0; i < numdim - 1; i++)
dvander@1472	2619	{
dvander@1472	2620	int j;
dvander@1472	2621
dvander@1472	2622	dim_offset_precalc[i] = 1;
dvander@1472	2623	for (j = i + 1; j < numdim - 1; j++)
dvander@1472	2624	{
dvander@1472	2625	dim_offset_precalc[i] *= dim[j];
dvander@1472	2626	}
dvander@1472	2627	}
dvander@1472	2628
dvander@1472	2629	ar.dim_offs_precalc = dim_offset_precalc;
dvander@1472	2630	ar.lastdim_list = dyn_list;
dvander@1472	2631	} else {
dvander@1472	2632	ar.dim_offs_precalc = NULL;
dvander@1472	2633	ar.lastdim_list = NULL;
dvander@1472	2634	}
dvander@1472	2635
dvander@1472	2636	ar.base = &litq[startlit];
dvander@1472	2637	ar.data_offs = &tbl_size;
dvander@1472	2638	ar.dim_list = dim;
dvander@1472	2639	ar.dim_count = numdim;
dvander@1472	2640	ar.cur_dims = cur_dims;
dvander@1472	2641
dvander@1472	2642	gen_indirection_vecs(&ar, 0, 0);
dvander@1472	2643
dvander@1472	2644	free(dyn_list);
dvander@27	2645	}
dvander@27	2646
dvander@27	2647	/* initials
dvander@27	2648	*
dvander@27	2649	* Initialize global objects and local arrays.
dvander@27	2650	* size==array cells (count), if 0 on input, the routine counts the number of elements
dvander@27	2651	* tag==required tagname id (not the returned tag)
dvander@27	2652	*
dvander@27	2653	* Global references: litidx (altered)
dvander@27	2654	*/
dvander@1044	2655	static void initials2(int ident,int tag,cell *size,int dim[],int numdim,
dvander@1045	2656	constvalue *enumroot, int eq_match_override, int curlit_override)
dvander@27	2657	{
dvander@27	2658	int ctag;
dvander@27	2659	cell tablesize;
dvander@1045	2660	int curlit=(curlit_override == -1) ? litidx : curlit_override;
dvander@27	2661	int err=0;
dvander@27	2662
dvander@1044	2663	if (eq_match_override == -1) {
dvander@1044	2664	eq_match_override = matchtoken('=');
dvander@1044	2665	}
dvander@1044	2666
dvander@1044	2667	if (!eq_match_override) {
dvander@27	2668	assert(ident!=iARRAY \|\| numdim>0);
dvander@27	2669	if (ident==iARRAY && dim[numdim-1]==0) {
dvander@27	2670	/* declared as "myvar[];" which is senseless (note: this does make
dvander@27	2671	* sense in the case of a iREFARRAY, which is a function parameter)
dvander@27	2672	*/
dvander@27	2673	error(9); /* array has zero length -> invalid size */
dvander@27	2674	} /* if */
dvander@27	2675	if (ident==iARRAY) {
dvander@27	2676	assert(numdim>0 && numdim<=sDIMEN_MAX);
dvander@27	2677	*size=calc_arraysize(dim,numdim,0);
dvander@27	2678	if (*size==(cell)CELL_MAX) {
dvander@27	2679	error(9); /* array is too big -> invalid size */
dvander@27	2680	return;
dvander@27	2681	} /* if */
dvander@27	2682	/* first reserve space for the indirection vectors of the array, then
dvander@27	2683	* adjust it to contain the proper values
dvander@27	2684	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2685	*/
dvander@27	2686	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2687	litadd(0);
dvander@27	2688	if (dim[numdim-1]!=0) /* error 9 has already been given */
dvander@27	2689	adjust_indirectiontables(dim,numdim,0,0,curlit,NULL,NULL);
dvander@27	2690	} /* if */
dvander@27	2691	return;
dvander@27	2692	} /* if */
dvander@27	2693
dvander@27	2694	if (ident==iVARIABLE) {
dvander@27	2695	assert(*size==1);
dvander@27	2696	init(ident,&ctag,NULL);
dvander@27	2697	if (!matchtag(tag,ctag,TRUE))
ds@844	2698	{
ds@844	2699	if (tag & FUNCTAG)
ds@844	2700	error(100); /* error - function prototypes do not match */
ds@844	2701	else
ds@844	2702	error(213); /* warning - tag mismatch */
ds@844	2703	}
dvander@27	2704	} else {
dvander@27	2705	assert(numdim>0);
dvander@27	2706	if (numdim==1) {
dvander@27	2707	*size=initvector(ident,tag,dim[0],FALSE,enumroot,NULL);
dvander@27	2708	} else {
dvander@27	2709	int errorfound=FALSE;
dvander@27	2710	int counteddim[sDIMEN_MAX];
dvander@27	2711	int idx;
dvander@27	2712	constvalue lastdim={NULL,"",0,0}; /* sizes of the final dimension */
dvander@27	2713	int skipdim=0;
dvander@27	2714
dvander@27	2715	if (dim[numdim-1]!=0)
dvander@27	2716	size=calc_arraysize(dim,numdim,0); / calc. full size, if known */
dvander@27	2717	/* already reserve space for the indirection tables (for an array with
dvander@27	2718	* known dimensions)
dvander@27	2719	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2720	*/
dvander@27	2721	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2722	litadd(0);
dvander@27	2723	/* now initialize the sub-arrays */
dvander@27	2724	memset(counteddim,0,sizeof counteddim);
dvander@27	2725	initarray(ident,tag,dim,numdim,0,curlit,counteddim,&lastdim,enumroot,&errorfound);
ds@563	2726	/* check the specified array dimensions with the initializer counts */
dvander@27	2727	for (idx=0; idx<numdim-1; idx++) {
dvander@27	2728	if (dim[idx]==0) {
dvander@27	2729	dim[idx]=counteddim[idx];
dvander@27	2730	} else if (counteddim[idx]<dim[idx]) {
dvander@27	2731	error(52); /* array is not fully initialized */
dvander@27	2732	err++;
dvander@27	2733	} else if (counteddim[idx]>dim[idx]) {
dvander@27	2734	error(18); /* initialization data exceeds declared size */
dvander@27	2735	err++;
dvander@27	2736	} /* if */
dvander@27	2737	} /* for */
faluco@62	2738	if (numdim>1 && dim[numdim-1]==0) {
faluco@62	2739	/* also look whether, by any chance, all "counted" final dimensions are
faluco@62	2740	* the same value; if so, we can store this
faluco@62	2741	*/
faluco@62	2742	constvalue *ld=lastdim.next;
faluco@62	2743	int d,match;
faluco@62	2744	for (d=0; d<dim[numdim-2]; d++) {
faluco@62	2745	assert(ld!=NULL);
faluco@62	2746	assert(strtol(ld->name,NULL,16)==d);
faluco@62	2747	if (d==0)
faluco@62	2748	match=ld->value;
faluco@62	2749	else if (match!=ld->value)
faluco@62	2750	break;
faluco@62	2751	ld=ld->next;
faluco@62	2752	} /* for */
faluco@62	2753	if (d==dim[numdim-2])
faluco@62	2754	dim[numdim-1]=match;
faluco@62	2755	} /* if */
dvander@27	2756	/* after all arrays have been initalized, we know the (major) dimensions
dvander@27	2757	* of the array and we can properly adjust the indirection vectors
dvander@27	2758	*/
dvander@27	2759	if (err==0)
dvander@27	2760	adjust_indirectiontables(dim,numdim,0,0,curlit,&lastdim,&skipdim);
dvander@27	2761	delete_consttable(&lastdim); /* clear list of minor dimension sizes */
dvander@27	2762	} /* if */
dvander@27	2763	} /* if */
dvander@27	2764
dvander@27	2765	if (*size==0)
dvander@27	2766	size=litidx-curlit; / number of elements defined */
dvander@27	2767	}
dvander@27	2768
dvander@1044	2769	static void initials(int ident,int tag,cell *size,int dim[],int numdim,
dvander@1044	2770	constvalue *enumroot)
dvander@1044	2771	{
dvander@1045	2772	initials2(ident, tag, size, dim, numdim, enumroot, -1, -1);
dvander@1044	2773	}
dvander@1044	2774
dvander@27	2775	static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dvander@27	2776	int startlit,int counteddim[],constvalue *lastdim,
dvander@27	2777	constvalue enumroot,int errorfound)
dvander@27	2778	{
dvander@27	2779	cell dsize,totalsize;
dvander@27	2780	int idx,abortparse;
dvander@27	2781
dvander@27	2782	assert(cur>=0 && cur<numdim);
dvander@27	2783	assert(startlit>=0);
dvander@27	2784	assert(cur+2<=numdim);/* there must be 2 dimensions or more to do */
dvander@27	2785	assert(errorfound!=NULL && *errorfound==FALSE);
dvander@27	2786	totalsize=0;
dvander@27	2787	needtoken('{');
dvander@27	2788	for (idx=0,abortparse=FALSE; !abortparse; idx++) {
dvander@27	2789	/* In case the major dimension is zero, we need to store the offset
dvander@27	2790	* to the newly detected sub-array into the indirection table; i.e.
dvander@27	2791	* this table needs to be expanded and updated.
dvander@27	2792	* In the current design, the indirection vectors for a multi-dimensional
ds@563	2793	* array are adjusted after parsing all initializers. Hence, it is only
dvander@27	2794	* necessary at this point to reserve space for an extra cell in the
dvander@27	2795	* indirection vector.
dvander@27	2796	*/
dvander@27	2797	if (dim[cur]==0) {
dvander@27	2798	litinsert(0,startlit);
dvander@27	2799	} else if (idx>=dim[cur]) {
dvander@27	2800	error(18); /* initialization data exceeds array size */
dvander@27	2801	break;
dvander@27	2802	} /* if */
dvander@27	2803	if (cur+2<numdim) {
dvander@27	2804	dsize=initarray(ident,tag,dim,numdim,cur+1,startlit,counteddim,
dvander@27	2805	lastdim,enumroot,errorfound);
dvander@27	2806	} else {
dvander@27	2807	dsize=initvector(ident,tag,dim[cur+1],TRUE,enumroot,errorfound);
dvander@27	2808	/* The final dimension may be variable length. We need to keep the
dvander@27	2809	* lengths of the final dimensions in order to set the indirection
dvander@27	2810	* vectors for the next-to-last dimension.
dvander@27	2811	*/
dvander@27	2812	append_constval(lastdim,itoh(idx),dsize,0);
dvander@27	2813	} /* if */
dvander@27	2814	totalsize+=dsize;
dvander@27	2815	if (*errorfound \|\| !matchtoken(','))
dvander@27	2816	abortparse=TRUE;
dvander@27	2817	} /* for */
dvander@27	2818	needtoken('}');
dvander@27	2819	assert(counteddim!=NULL);
dvander@27	2820	if (counteddim[cur]>0) {
dvander@27	2821	if (idx<counteddim[cur])
dvander@27	2822	error(52); /* array is not fully initialized */
dvander@27	2823	else if (idx>counteddim[cur])
dvander@27	2824	error(18); /* initialization data exceeds declared size */
dvander@27	2825	} /* if */
dvander@27	2826	counteddim[cur]=idx;
dvander@27	2827
dvander@27	2828	return totalsize+dim[cur]; /* size of sub-arrays + indirection vector */
dvander@27	2829	}
dvander@27	2830
dvander@27	2831	/* initvector
dvander@27	2832	* Initialize a single dimensional array
dvander@27	2833	*/
dvander@27	2834	static cell initvector(int ident,int tag,cell size,int fillzero,
dvander@27	2835	constvalue enumroot,int errorfound)
dvander@27	2836	{
dvander@27	2837	cell prev1=0,prev2=0;
faluco@202	2838	int ellips=FALSE;
dvander@27	2839	int curlit=litidx;
dvander@27	2840	int rtag,ctag;
dvander@27	2841
dvander@27	2842	assert(ident==iARRAY \|\| ident==iREFARRAY);
faluco@202	2843	if (matchtoken('{')) {
dvander@27	2844	constvalue *enumfield=(enumroot!=NULL) ? enumroot->next : NULL;
dvander@27	2845	do {
dvander@27	2846	int fieldlit=litidx;
dvander@27	2847	int matchbrace,i;
dvander@27	2848	if (matchtoken('}')) { /* to allow for trailing ',' after the initialization */
dvander@27	2849	lexpush();
dvander@27	2850	break;
dvander@27	2851	} /* if */
dvander@27	2852	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2853	break;
dvander@27	2854	/* for enumeration fields, allow another level of braces ("{...}") */
dvander@27	2855	matchbrace=0; /* preset */
dvander@27	2856	ellips=0;
dvander@27	2857	if (enumfield!=NULL)
dvander@27	2858	matchbrace=matchtoken('{');
dvander@27	2859	for ( ;; ) {
dvander@27	2860	prev2=prev1;
dvander@27	2861	prev1=init(ident,&ctag,errorfound);
dvander@27	2862	if (!matchbrace)
dvander@27	2863	break;
dvander@27	2864	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2865	break;
dvander@27	2866	if (!matchtoken(',')) {
dvander@27	2867	needtoken('}');
dvander@27	2868	break;
dvander@27	2869	} /* for */
dvander@27	2870	} /* for */
dvander@27	2871	/* if this array is based on an enumeration, fill the "field" up with
dvander@27	2872	* zeros, and toggle the tag
dvander@27	2873	*/
dvander@27	2874	if (enumroot!=NULL && enumfield==NULL)
ds@563	2875	error(227); /* more initializers than enum fields */
dvander@27	2876	rtag=tag; /* preset, may be overridden by enum field tag */
dvander@27	2877	if (enumfield!=NULL) {
dvander@27	2878	cell step;
dvander@27	2879	int cmptag=enumfield->index;
dvander@27	2880	symbol *symfield=findconst(enumfield->name,&cmptag);
dvander@27	2881	if (cmptag>1)
dvander@27	2882	error(91,enumfield->name); /* ambiguous constant, needs tag override */
dvander@27	2883	assert(symfield!=NULL);
dvander@27	2884	assert(fieldlit<litidx);
dvander@27	2885	if (litidx-fieldlit>symfield->dim.array.length)
ds@563	2886	error(228); /* length of initializer exceeds size of the enum field */
dvander@27	2887	if (ellips) {
dvander@27	2888	step=prev1-prev2;
dvander@27	2889	} else {
dvander@27	2890	step=0;
dvander@27	2891	prev1=0;
dvander@27	2892	} /* if */
dvander@27	2893	for (i=litidx-fieldlit; i<symfield->dim.array.length; i++) {
dvander@27	2894	prev1+=step;
dvander@27	2895	litadd(prev1);
dvander@27	2896	} /* for */
dvander@27	2897	rtag=symfield->x.tags.index; /* set the expected tag to the index tag */
dvander@27	2898	enumfield=enumfield->next;
dvander@27	2899	} /* if */
dvander@27	2900	if (!matchtag(rtag,ctag,TRUE))
ds@844	2901	{
ds@844	2902	if (rtag & FUNCTAG)
ds@844	2903	error(100); /* error - function prototypes do not match */
ds@844	2904	else
ds@844	2905	error(213); /* warning - tag mismatch */
ds@844	2906	}
dvander@27	2907	} while (matchtoken(',')); /* do */
dvander@27	2908	needtoken('}');
dvander@27	2909	} else {
dvander@27	2910	init(ident,&ctag,errorfound);
dvander@27	2911	if (!matchtag(tag,ctag,TRUE))
dvander@27	2912	error(213); /* tagname mismatch */
dvander@27	2913	} /* if */
dvander@27	2914	/* fill up the literal queue with a series */
dvander@27	2915	if (ellips) {
dvander@27	2916	cell step=((litidx-curlit)==1) ? (cell)0 : prev1-prev2;
dvander@27	2917	if (size==0 \|\| (litidx-curlit)==0)
dvander@27	2918	error(41); /* invalid ellipsis, array size unknown */
dvander@27	2919	else if ((litidx-curlit)==(int)size)
dvander@27	2920	error(18); /* initialisation data exceeds declared size */
dvander@27	2921	while ((litidx-curlit)<(int)size) {
dvander@27	2922	prev1+=step;
dvander@27	2923	litadd(prev1);
dvander@27	2924	} /* while */
dvander@27	2925	} /* if */
dvander@27	2926	if (fillzero && size>0) {
dvander@27	2927	while ((litidx-curlit)<(int)size)
dvander@27	2928	litadd(0);
dvander@27	2929	} /* if */
dvander@27	2930	if (size==0) {
dvander@27	2931	size=litidx-curlit; /* number of elements defined */
dvander@27	2932	} else if (litidx-curlit>(int)size) { /* e.g. "myvar[3]={1,2,3,4};" */
dvander@27	2933	error(18); /* initialisation data exceeds declared size */
dvander@27	2934	litidx=(int)size+curlit; /* avoid overflow in memory moves */
dvander@27	2935	} /* if */
dvander@27	2936	return size;
dvander@27	2937	}
dvander@27	2938
dvander@27	2939	/* init
dvander@27	2940	*
dvander@27	2941	* Evaluate one initializer.
dvander@27	2942	*/
dvander@27	2943	static cell init(int ident,int tag,int errorfound)
dvander@27	2944	{
dvander@27	2945	cell i = 0;
dvander@27	2946
dvander@27	2947	if (matchtoken(tSTRING)){
dvander@27	2948	/* lex() automatically stores strings in the literal table (and
dvander@27	2949	* increases "litidx") */
dvander@27	2950	if (ident==iVARIABLE) {
dvander@27	2951	error(6); /* must be assigned to an array */
dvander@27	2952	litidx=1; /* reset literal queue */
dvander@27	2953	} /* if */
dvander@151	2954	*tag=pc_tag_string;
dvander@27	2955	} else if (constexpr(&i,tag,NULL)){
dvander@27	2956	litadd(i); /* store expression result in literal table */
dvander@27	2957	} else {
dvander@27	2958	if (errorfound!=NULL)
dvander@27	2959	*errorfound=TRUE;
dvander@27	2960	} /* if */
dvander@27	2961	return i;
dvander@27	2962	}
dvander@27	2963
dvander@27	2964	/* needsub
dvander@27	2965	*
dvander@27	2966	* Get required array size
dvander@27	2967	*/
dvander@27	2968	static cell needsub(int tag,constvalue *enumroot)
dvander@27	2969	{
dvander@27	2970	cell val;
dvander@27	2971	symbol *sym;
dvander@27	2972
dvander@27	2973	assert(tag!=NULL);
dvander@27	2974	*tag=0;
dvander@27	2975	if (enumroot!=NULL)
dvander@27	2976	enumroot=NULL; / preset */
dvander@27	2977	if (matchtoken(']')) /* we have already seen "[" */
dvander@27	2978	return 0; /* zero size (like "char msg[]") */
dvander@27	2979
dvander@27	2980	constexpr(&val,tag,&sym); /* get value (must be constant expression) */
dvander@27	2981	if (val<0) {
dvander@27	2982	error(9); /* negative array size is invalid; assumed zero */
dvander@27	2983	val=0;
dvander@27	2984	} /* if */
dvander@27	2985	needtoken(']');
dvander@27	2986
dvander@27	2987	if (enumroot!=NULL) {
dvander@27	2988	/* get the field list for an enumeration */
dvander@27	2989	assert(enumroot==NULL);/ should have been preset */
dvander@27	2990	assert(sym==NULL \|\| sym->ident==iCONSTEXPR);
dvander@27	2991	if (sym!=NULL && (sym->usage & uENUMROOT)==uENUMROOT) {
dvander@27	2992	assert(sym->dim.enumlist!=NULL);
dvander@27	2993	*enumroot=sym->dim.enumlist;
dvander@27	2994	} /* if */
dvander@27	2995	} /* if */
dvander@27	2996
dvander@27	2997	return val; /* return array size */
dvander@27	2998	}
dvander@27	2999
dvander@27	3000	/* decl_const - declare a single constant
dvander@27	3001	*
dvander@27	3002	*/
dvander@27	3003	static void decl_const(int vclass)
dvander@27	3004	{
dvander@27	3005	char constname[sNAMEMAX+1];
dvander@27	3006	cell val;
dvander@27	3007	char *str;
dvander@27	3008	int tag,exprtag;
dvander@27	3009	int symbolline;
dvander@27	3010	symbol *sym;
dvander@27	3011
faluco@62	3012	insert_docstring_separator(); /* see comment in newfunc() */
faluco@62	3013	do {
faluco@62	3014	tag=pc_addtag(NULL);
faluco@62	3015	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
faluco@62	3016	error(20,str); /* invalid symbol name */
faluco@62	3017	symbolline=fline; /* save line where symbol was found */
faluco@62	3018	strcpy(constname,str); /* save symbol name */
faluco@62	3019	needtoken('=');
faluco@62	3020	constexpr(&val,&exprtag,NULL); /* get value */
faluco@62	3021	/* add_constant() checks for duplicate definitions */
faluco@62	3022	if (!matchtag(tag,exprtag,FALSE)) {
faluco@62	3023	/* temporarily reset the line number to where the symbol was defined */
faluco@62	3024	int orgfline=fline;
faluco@62	3025	fline=symbolline;
faluco@62	3026	error(213); /* tagname mismatch */
faluco@62	3027	fline=orgfline;
faluco@62	3028	} /* if */
faluco@62	3029	sym=add_constant(constname,val,vclass,tag);
faluco@62	3030	if (sym!=NULL)
faluco@62	3031	sc_attachdocumentation(sym);/* attach any documenation to the constant */
faluco@62	3032	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	3033	needtoken(tTERM);
dvander@27	3034	}
dvander@27	3035
dvander@167	3036	/*
dvander@167	3037	* declstruct - declare a struct type
dvander@167	3038	*/
dvander@167	3039	static void declstruct(void)
dvander@167	3040	{
dvander@167	3041	cell val;
dvander@167	3042	char *str;
dvander@167	3043	int tok;
dvander@167	3044	pstruct_t *pstruct;
dvander@167	3045	int size;
dvander@167	3046
dvander@167	3047	/* get the explicit tag (required!) */
dvander@167	3048	tok = lex(&val,&str);
dvander@167	3049	if (tok != tSYMBOL)
dvander@167	3050	{
dvander@167	3051	error(93);
dvander@167	3052	}
dvander@167	3053
dvander@167	3054	if (pstructs_find(str) != NULL)
dvander@167	3055	{
ds@841	3056	error(98);
dvander@167	3057	}
dvander@167	3058
dvander@167	3059	pstruct = pstructs_add(str);
dvander@167	3060
dvander@167	3061	needtoken('{');
dvander@167	3062	do
dvander@167	3063	{
dvander@167	3064	structarg_t arg;
dvander@167	3065	if (matchtoken('}'))
dvander@167	3066	{
dvander@167	3067	/* Quick exit */
dvander@167	3068	lexpush();
dvander@167	3069	break;
dvander@167	3070	}
dvander@167	3071	memset(&arg, 0, sizeof(structarg_t));
dvander@167	3072	tok = lex(&val,&str);
dvander@167	3073	if (tok == tCONST)
dvander@167	3074	{
dvander@167	3075	arg.fconst = 1;
dvander@167	3076	tok = lex(&val,&str);
dvander@167	3077	}
dvander@167	3078	arg.ident = 0;
dvander@167	3079	if (tok == '&')
dvander@167	3080	{
dvander@167	3081	arg.ident = iREFERENCE;
dvander@167	3082	tok = lex(&val,&str);
dvander@167	3083	}
dvander@167	3084	if (tok == tLABEL)
dvander@167	3085	{
dvander@167	3086	arg.tag = pc_addtag(str);
dvander@167	3087	tok = lex(&val,&str);
dvander@167	3088	}
dvander@167	3089	if (tok != tSYMBOL)
dvander@167	3090	{
dvander@167	3091	error(1, "-identifier-", str);
dvander@167	3092	continue;
dvander@167	3093	}
dvander@167	3094	strcpy(arg.name, str);
dvander@167	3095	if (matchtoken('['))
dvander@167	3096	{
dvander@167	3097	if (arg.ident == iREFERENCE)
dvander@167	3098	{
dvander@167	3099	error(67, arg.name);
dvander@167	3100	}
dvander@167	3101	arg.ident = iARRAY;
dvander@167	3102	do
dvander@167	3103	{
dvander@167	3104	constvalue *enumroot;
dvander@167	3105	int ignore_tag;
dvander@167	3106	if (arg.dimcount == sDIMEN_MAX)
dvander@167	3107	{
dvander@167	3108	error(53);
dvander@167	3109	break;
dvander@167	3110	}
dvander@167	3111	size = needsub(&ignore_tag, &enumroot);
dvander@167	3112	arg.dims[arg.dimcount++] = size;
dvander@167	3113	} while (matchtoken('['));
dvander@167	3114	/* Handle strings */
dvander@167	3115	if (arg.tag == pc_tag_string && arg.dims[arg.dimcount-1])
dvander@167	3116	{
dvander@167	3117	arg.dims[arg.dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@167	3118	}
dvander@167	3119	if (arg.dimcount == 1 && !arg.dims[arg.dimcount-1])
dvander@167	3120	{
dvander@167	3121	arg.ident = iREFARRAY;
dvander@167	3122	}
dvander@167	3123	} else if (!arg.ident) {
dvander@167	3124	arg.ident = iVARIABLE;
dvander@167	3125	}
dvander@167	3126	if (pstructs_addarg(pstruct, &arg) == NULL)
dvander@167	3127	{
ds@841	3128	error(99, arg.name, pstruct->name);
dvander@167	3129	}
dvander@167	3130	} while (matchtoken(','));
dvander@167	3131	needtoken('}');
dvander@167	3132	matchtoken(';'); /* eat up optional semicolon */
dvander@167	3133	}
dvander@167	3134
dvander@167	3135
dvander@167	3136	/**
dvander@167	3137	* dofuncenum - declare function enumerations
dvander@132	3138	*/
dvander@338	3139	static void dofuncenum(int listmode)
dvander@132	3140	{
dvander@132	3141	cell val;
ds@425	3142	char *str;
ds@425	3143	// char *ptr;
dvander@132	3144	char tagname[sNAMEMAX+1];
dvander@132	3145	constvalue *cur;
dvander@132	3146	funcenum_t *fenum = NULL;
dvander@132	3147	int i;
dvander@132	3148
dvander@132	3149	/* get the explicit tag (required!) */
dvander@132	3150	int l = lex(&val,&str);
dvander@132	3151	if (l != tSYMBOL)
dvander@132	3152	{
faluco@138	3153	error(93);
dvander@132	3154	}
dvander@132	3155
dvander@132	3156	/* This tag can't already exist! */
dvander@132	3157	cur=tagname_tab.next;
dvander@132	3158	while (cur)
dvander@132	3159	{
dvander@132	3160	if (strcmp(cur->name, str) == 0)
dvander@132	3161	{
dvander@132	3162	/* Another bad one... */
dvander@132	3163	if (!(cur->value & FUNCTAG))
dvander@132	3164	{
faluco@138	3165	error(94);
dvander@132	3166	}
dvander@132	3167	break;
dvander@132	3168	}
dvander@132	3169	cur = cur->next;
dvander@132	3170	}
dvander@132	3171	strcpy(tagname, str);
dvander@132	3172
dvander@132	3173	fenum = funcenums_add(tagname);
dvander@132	3174
dvander@338	3175	if (listmode)
dvander@338	3176	{
dvander@338	3177	needtoken('{');
dvander@338	3178	}
dvander@132	3179	do
dvander@132	3180	{
dvander@132	3181	functag_t func;
dvander@338	3182	if (listmode && matchtoken('}'))
dvander@132	3183	{
dvander@132	3184	/* Quick exit */
dvander@132	3185	lexpush();
dvander@132	3186	break;
dvander@132	3187	}
dvander@132	3188	memset(&func, 0, sizeof(func));
dvander@132	3189	func.ret_tag = pc_addtag(NULL); /* Get the return tag */
dvander@132	3190	l = lex(&val, &str);
dvander@343	3191	/* :TODO:
dvander@343	3192	* Right now, there is a problem. We can't pass non-public function pointer addresses around,
dvander@343	3193	* because the address isn't known until the final reparse. Unfortunately, you can write code
dvander@343	3194	* before the address is known, because Pawn's compiler isn't truly multipass.
dvander@343	3195	*
dvander@343	3196	* When you call a function, there's no problem, because it does not write the address.
dvander@343	3197	* The assembly looks like this:
dvander@343	3198	* call MyFunction
dvander@343	3199	* Then, only at assembly time (once all passes are done), does it know the address.
dvander@343	3200	* I do not see any solution to this because there is no way I know to inject the function name
dvander@343	3201	* rather than the constant value. And even if we could, we'd have to change the assembler recognize that.
dvander@343	3202	*/
dvander@343	3203	/*if (l == tSTOCK)
dvander@132	3204	{
dvander@338	3205	func.type = uSTOCK;
dvander@343	3206	} else */if (l == tPUBLIC) {
dvander@132	3207	func.type = uPUBLIC;
dvander@132	3208	} else {
dvander@343	3209	error(1, "-public-", str);
dvander@132	3210	}
dvander@132	3211	needtoken('(');
dvander@132	3212	do
dvander@132	3213	{
dvander@132	3214	funcarg_t *arg = &(func.args[func.argcount]);
dvander@132	3215
dvander@132	3216	/* Quick exit */
dvander@132	3217	if (matchtoken(')'))
dvander@132	3218	{
dvander@132	3219	lexpush();
dvander@132	3220	break;
dvander@132	3221	}
dvander@132	3222	l = lex(&val, &str);
dvander@132	3223	if (l == '&')
dvander@132	3224	{
dvander@132	3225	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3226	{
dvander@132	3227	error(1, "-identifier-", "&");
dvander@132	3228	}
dvander@132	3229	arg->ident = iREFERENCE;
dvander@132	3230	} else if (l == tCONST) {
dvander@132	3231	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3232	{
dvander@132	3233	error(1, "-identifier-", "const");
dvander@132	3234	}
dvander@132	3235	arg->fconst=TRUE;
dvander@132	3236	} else if (l == tLABEL) {
dvander@132	3237	if (arg->tagcount > 0)
dvander@132	3238	{
dvander@132	3239	error(1, "-identifier-", "-tagname-");
dvander@132	3240	}
dvander@132	3241	arg->tags[arg->tagcount++] = pc_addtag(str);
dvander@132	3242	#if 0
dvander@132	3243	while (arg->tagcount < sTAGS_MAX)
dvander@132	3244	{
dvander@132	3245	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@132	3246	{
dvander@132	3247	break;
dvander@132	3248	}
dvander@132	3249	tokeninfo(&val, &ptr);
dvander@132	3250	arg->tags[arg->tagcount++] = pc_addtag(ptr);
dvander@132	3251	if (matchtoken('}'))
dvander@132	3252	{
dvander@132	3253	break;
dvander@132	3254	}
dvander@132	3255	needtoken(',');
dvander@132	3256	}
dvander@132	3257	needtoken(':');
dvander@132	3258	#endif
dvander@132	3259	l=tLABEL;
dvander@132	3260	} else if (l == tSYMBOL) {
dvander@132	3261	if (func.argcount >= sARGS_MAX)
dvander@132	3262	{
dvander@132	3263	error(45);
dvander@132	3264	}
dvander@132	3265	if (str[0] == PUBLIC_CHAR)
dvander@132	3266	{
dvander@132	3267	error(56, str);
dvander@132	3268	}
dvander@132	3269	if (matchtoken('['))
dvander@132	3270	{
dvander@151	3271	cell size;
dvander@132	3272	if (arg->ident == iREFERENCE)
dvander@132	3273	{
dvander@132	3274	error(67, str);
dvander@132	3275	}
dvander@132	3276	do
dvander@132	3277	{
dvander@132	3278	constvalue *enumroot;
dvander@132	3279	int ignore_tag;
dvander@132	3280	if (arg->dimcount == sDIMEN_MAX)
dvander@132	3281	{
dvander@132	3282	error(53);
dvander@132	3283	break;
dvander@132	3284	}
dvander@132	3285	size = needsub(&ignore_tag, &enumroot);
dvander@132	3286	arg->dims[arg->dimcount] = size;
dvander@132	3287	arg->dimcount += 1;
dvander@132	3288	} while (matchtoken('['));
dvander@151	3289	/* Handle strings */
dvander@167	3290	if ((arg->tagcount == 1 && arg->tags[0] == pc_tag_string)
dvander@167	3291	&& arg->dims[arg->dimcount-1])
dvander@151	3292	{
dvander@151	3293	arg->dims[arg->dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3294	}
dvander@132	3295	arg->ident=iREFARRAY;
dvander@132	3296	} else if (arg->ident == 0) {
dvander@132	3297	arg->ident = iVARIABLE;
dvander@132	3298	}
dvander@132	3299
dvander@132	3300	if (matchtoken('='))
dvander@132	3301	{
dvander@132	3302	needtoken('0');
dvander@132	3303	arg->ommittable = TRUE;
dvander@132	3304	func.ommittable = TRUE;
dvander@132	3305	} else if (func.ommittable) {
faluco@138	3306	error(95);
dvander@132	3307	}
dvander@132	3308	func.argcount++;
dvander@132	3309	} else if (l == tELLIPS) {
dvander@132	3310	if (arg->ident == iVARIABLE)
dvander@132	3311	{
dvander@132	3312	error(10);
dvander@132	3313	}
dvander@132	3314	arg->ident = iVARARGS;
dvander@132	3315	func.argcount++;
dvander@132	3316	} else {
dvander@132	3317	error(10);
dvander@132	3318	}
dvander@132	3319	} while (l == '&' \|\| l == tLABEL \|\| l == tCONST \|\| l != tELLIPS && matchtoken(','));
dvander@132	3320	needtoken(')');
dvander@132	3321	for (i=0; i<func.argcount; i++)
dvander@132	3322	{
dvander@132	3323	if (func.args[i].tagcount == 0)
dvander@132	3324	{
dvander@132	3325	func.args[i].tags[0] = 0;
dvander@132	3326	func.args[i].tagcount = 1;
dvander@132	3327	}
dvander@132	3328	}
dvander@132	3329	functags_add(fenum, &func);
dvander@338	3330	if (!listmode)
dvander@338	3331	{
dvander@338	3332	break;
dvander@338	3333	}
dvander@132	3334	} while (matchtoken(','));
dvander@338	3335	if (listmode)
dvander@338	3336	{
dvander@338	3337	needtoken('}');
dvander@338	3338	}
dvander@132	3339	matchtoken(';'); /* eat an optional semicolon. nom nom nom */
dvander@132	3340	errorset(sRESET, 0);
dvander@132	3341	}
dvander@132	3342
dvander@27	3343	/* decl_enum - declare enumerated constants
dvander@27	3344	*
dvander@27	3345	*/
dvander@27	3346	static void decl_enum(int vclass)
dvander@27	3347	{
dvander@27	3348	char enumname[sNAMEMAX+1],constname[sNAMEMAX+1];
dvander@27	3349	cell val,value,size;
dvander@27	3350	char *str;
dvander@27	3351	int tag,explicittag;
dvander@27	3352	cell increment,multiplier;
dvander@27	3353	constvalue *enumroot;
dvander@27	3354	symbol *enumsym;
dvander@27	3355
dvander@27	3356	/* get an explicit tag, if any (we need to remember whether an explicit
dvander@27	3357	* tag was passed, even if that explicit tag was "_:", so we cannot call
dvander@27	3358	* pc_addtag() here
dvander@27	3359	*/
dvander@27	3360	if (lex(&val,&str)==tLABEL) {
dvander@27	3361	tag=pc_addtag(str);
dvander@27	3362	explicittag=TRUE;
dvander@27	3363	} else {
dvander@27	3364	lexpush();
dvander@27	3365	tag=0;
dvander@27	3366	explicittag=FALSE;
dvander@27	3367	} /* if */
dvander@27	3368
dvander@27	3369	/* get optional enum name (also serves as a tag if no explicit tag was set) */
dvander@27	3370	if (lex(&val,&str)==tSYMBOL) { /* read in (new) token */
dvander@27	3371	strcpy(enumname,str); /* save enum name (last constant) */
dvander@27	3372	if (!explicittag)
dvander@27	3373	tag=pc_addtag(enumname);
dvander@27	3374	} else {
dvander@27	3375	lexpush(); /* analyze again */
dvander@27	3376	enumname[0]='\0';
dvander@27	3377	} /* if */
dvander@27	3378
dvander@27	3379	/* get increment and multiplier */
dvander@27	3380	increment=1;
dvander@27	3381	multiplier=1;
dvander@27	3382	if (matchtoken('(')) {
dvander@27	3383	if (matchtoken(taADD)) {
dvander@27	3384	constexpr(&increment,NULL,NULL);
dvander@27	3385	} else if (matchtoken(taMULT)) {
dvander@27	3386	constexpr(&multiplier,NULL,NULL);
dvander@27	3387	} else if (matchtoken(taSHL)) {
dvander@27	3388	constexpr(&val,NULL,NULL);
dvander@27	3389	while (val-->0)
dvander@27	3390	multiplier*=2;
dvander@27	3391	} /* if */
dvander@27	3392	needtoken(')');
dvander@27	3393	} /* if */
dvander@27	3394
dvander@27	3395	if (strlen(enumname)>0) {
dvander@27	3396	/* already create the root symbol, so the fields can have it as their "parent" */
dvander@27	3397	enumsym=add_constant(enumname,0,vclass,tag);
dvander@27	3398	if (enumsym!=NULL)
dvander@27	3399	enumsym->usage \|= uENUMROOT;
dvander@27	3400	/* start a new list for the element names */
dvander@27	3401	if ((enumroot=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	3402	error(123); /* insufficient memory (fatal error) */
dvander@27	3403	memset(enumroot,0,sizeof(constvalue));
dvander@27	3404	} else {
dvander@27	3405	enumsym=NULL;
dvander@27	3406	enumroot=NULL;
dvander@27	3407	} /* if */
dvander@27	3408
dvander@27	3409	needtoken('{');
dvander@27	3410	/* go through all constants */
dvander@27	3411	value=0; /* default starting value */
dvander@27	3412	do {
dvander@27	3413	int idxtag,fieldtag;
dvander@27	3414	symbol *sym;
dvander@27	3415	if (matchtoken('}')) { /* quick exit if '}' follows ',' */
dvander@27	3416	lexpush();
dvander@27	3417	break;
dvander@27	3418	} /* if */
dvander@27	3419	idxtag=pc_addtag(NULL); /* optional explicit item tag */
dvander@27	3420	if (needtoken(tSYMBOL)) { /* read in (new) token */
dvander@27	3421	tokeninfo(&val,&str); /* get the information */
dvander@27	3422	strcpy(constname,str); /* save symbol name */
dvander@27	3423	} else {
dvander@27	3424	constname[0]='\0';
dvander@27	3425	} /* if */
dvander@27	3426	size=increment; /* default increment of 'val' */
dvander@27	3427	fieldtag=0; /* default field tag */
dvander@27	3428	if (matchtoken('[')) {
dvander@27	3429	constexpr(&size,&fieldtag,NULL); /* get size */
dvander@27	3430	needtoken(']');
dvander@27	3431	} /* if */
dvander@151	3432	/* :TODO: do we need a size modifier here for pc_tag_string? */
dvander@27	3433	if (matchtoken('='))
dvander@27	3434	constexpr(&value,NULL,NULL); /* get value */
dvander@27	3435	/* add_constant() checks whether a variable (global or local) or
dvander@27	3436	* a constant with the same name already exists
dvander@27	3437	*/
dvander@27	3438	sym=add_constant(constname,value,vclass,tag);
dvander@27	3439	if (sym==NULL)
dvander@27	3440	continue; /* error message already given */
dvander@27	3441	/* set the item tag and the item size, for use in indexing arrays */
dvander@27	3442	sym->x.tags.index=idxtag;
dvander@27	3443	sym->x.tags.field=fieldtag;
dvander@27	3444	sym->dim.array.length=size;
dvander@27	3445	sym->dim.array.level=0;
dvander@286	3446	sym->dim.array.slength=0;
dvander@27	3447	sym->parent=enumsym;
dvander@27	3448	/* add the constant to a separate list as well */
dvander@27	3449	if (enumroot!=NULL) {
dvander@27	3450	sym->usage \|= uENUMFIELD;
dvander@27	3451	append_constval(enumroot,constname,value,tag);
dvander@27	3452	} /* if */
dvander@27	3453	if (multiplier==1)
dvander@27	3454	value+=size;
dvander@27	3455	else
dvander@27	3456	value=sizemultiplier;
dvander@27	3457	} while (matchtoken(','));
dvander@27	3458	needtoken('}'); /* terminates the constant list */
dvander@27	3459	matchtoken(';'); /* eat an optional ; */
dvander@27	3460
dvander@27	3461	/* set the enum name to the "next" value (typically the last value plus one) */
dvander@27	3462	if (enumsym!=NULL) {
dvander@27	3463	assert((enumsym->usage & uENUMROOT)!=0);
dvander@27	3464	enumsym->addr=value;
dvander@27	3465	/* assign the constant list */
dvander@27	3466	assert(enumroot!=NULL);
dvander@27	3467	enumsym->dim.enumlist=enumroot;
dvander@27	3468	sc_attachdocumentation(enumsym); /* attach any documenation to the enumeration */
dvander@27	3469	} /* if */
dvander@27	3470	}
dvander@27	3471
dvander@27	3472	static int getstates(const char *funcname)
dvander@27	3473	{
dvander@27	3474	char fsaname[sNAMEMAX+1],statename[sNAMEMAX+1];
dvander@27	3475	cell val;
dvander@27	3476	char *str;
dvander@27	3477	constvalue *automaton;
dvander@27	3478	constvalue *state;
dvander@27	3479	int fsa,islabel;
dvander@27	3480	int *list;
dvander@27	3481	int count,listsize,state_id;
dvander@27	3482
dvander@27	3483	if (!matchtoken('<'))
dvander@27	3484	return 0;
dvander@27	3485	if (matchtoken('>'))
dvander@27	3486	return -1; /* special construct: all other states (fall-back) */
dvander@27	3487
dvander@27	3488	count=0;
dvander@27	3489	listsize=0;
dvander@27	3490	list=NULL;
dvander@27	3491	fsa=-1;
dvander@27	3492
dvander@27	3493	do {
dvander@27	3494	if (!(islabel=matchtoken(tLABEL)) && !needtoken(tSYMBOL))
dvander@27	3495	break;
dvander@27	3496	tokeninfo(&val,&str);
dvander@27	3497	assert(strlen(str)<sizeof fsaname);
dvander@27	3498	strcpy(fsaname,str); /* assume this is the name of the automaton */
dvander@27	3499	if (islabel \|\| matchtoken(':')) {
dvander@27	3500	/* token is an automaton name, add the name and get a new token */
dvander@27	3501	if (!needtoken(tSYMBOL))
dvander@27	3502	break;
dvander@27	3503	tokeninfo(&val,&str);
dvander@27	3504	assert(strlen(str)<sizeof statename);
dvander@27	3505	strcpy(statename,str);
dvander@27	3506	} else {
dvander@27	3507	/* the token was the state name (part of an anynymous automaton) */
dvander@27	3508	assert(strlen(fsaname)<sizeof statename);
dvander@27	3509	strcpy(statename,fsaname);
dvander@27	3510	fsaname[0]='\0';
dvander@27	3511	} /* if */
dvander@27	3512	if (fsa<0 \|\| fsaname[0]!='\0') {
dvander@27	3513	automaton=automaton_add(fsaname);
dvander@27	3514	assert(automaton!=NULL);
dvander@27	3515	if (fsa>=0 && automaton->index!=fsa)
dvander@27	3516	error(83,funcname); /* multiple automatons for a single function/variable */
dvander@27	3517	fsa=automaton->index;
dvander@27	3518	} /* if */
dvander@27	3519	state=state_add(statename,fsa);
dvander@27	3520	/* add this state to the state combination list (it will be attached to the
dvander@27	3521	* automaton later) */
dvander@27	3522	state_buildlist(&list,&listsize,&count,(int)state->value);
dvander@27	3523	} while (matchtoken(','));
dvander@27	3524	needtoken('>');
dvander@27	3525
dvander@27	3526	if (count>0) {
dvander@27	3527	assert(automaton!=NULL);
dvander@27	3528	assert(fsa>=0);
dvander@27	3529	state_id=state_addlist(list,count,fsa);
dvander@27	3530	assert(state_id>0);
dvander@27	3531	} else {
dvander@27	3532	/* error is already given */
dvander@27	3533	state_id=0;
dvander@27	3534	} /* if */
dvander@27	3535	if (list!=NULL)
dvander@27	3536	free(list);
dvander@27	3537
dvander@27	3538	return state_id;
dvander@27	3539	}
dvander@27	3540
dvander@27	3541	static void attachstatelist(symbol *sym, int state_id)
dvander@27	3542	{
dvander@27	3543	assert(sym!=NULL);
dvander@27	3544	if ((sym->usage & uDEFINE)!=0 && (sym->states==NULL \|\| state_id==0))
dvander@27	3545	error(21,sym->name); /* function already defined, either without states or the current definition has no states */
dvander@27	3546
dvander@27	3547	if (state_id!=0) {
dvander@27	3548	/* add the state list id */
dvander@27	3549	constvalue *stateptr;
dvander@27	3550	if (sym->states==NULL) {
dvander@27	3551	if ((sym->states=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	3552	error(123); /* insufficient memory (fatal error) */
dvander@27	3553	memset(sym->states,0,sizeof(constvalue));
dvander@27	3554	} /* if */
dvander@27	3555	/* see whether the id already exists (add new state only if it does not
dvander@27	3556	* yet exist
dvander@27	3557	*/
dvander@27	3558	assert(sym->states!=NULL);
dvander@27	3559	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index!=state_id; stateptr=stateptr->next)
dvander@27	3560	/* nothing */;
dvander@27	3561	assert(state_id<=SHRT_MAX);
dvander@27	3562	if (stateptr==NULL)
dvander@27	3563	append_constval(sym->states,"",code_idx,(short)state_id);
dvander@27	3564	else if (stateptr->value==0)
dvander@27	3565	stateptr->value=code_idx;
dvander@27	3566	else
dvander@27	3567	error(84,sym->name);
dvander@27	3568	/* also check for another conflicting situation: a fallback function
dvander@27	3569	* without any states
dvander@27	3570	*/
dvander@27	3571	if (state_id==-1 && sc_status!=statFIRST) {
dvander@27	3572	/* in the second round, all states should have been accumulated */
dvander@27	3573	assert(sym->states!=NULL);
dvander@27	3574	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index==-1; stateptr=stateptr->next)
dvander@27	3575	/* nothing */;
dvander@27	3576	if (stateptr==NULL)
dvander@27	3577	error(85,sym->name); /* no states are defined for this function */
dvander@27	3578	} /* if */
dvander@27	3579	} /* if */
dvander@27	3580	}
dvander@27	3581
dvander@27	3582	/*
dvander@27	3583	* Finds a function in the global symbol table or creates a new entry.
dvander@27	3584	* It does some basic processing and error checking.
dvander@27	3585	*/
dvander@27	3586	SC_FUNC symbol fetchfunc(char name,int tag)
dvander@27	3587	{
dvander@27	3588	symbol *sym;
dvander@27	3589
dvander@27	3590	if ((sym=findglb(name,sGLOBAL))!=0) { /* already in symbol table? */
dvander@27	3591	if (sym->ident!=iFUNCTN) {
dvander@27	3592	error(21,name); /* yes, but not as a function */
dvander@27	3593	return NULL; /* make sure the old symbol is not damaged */
dvander@27	3594	} else if ((sym->usage & uNATIVE)!=0) {
dvander@27	3595	error(21,name); /* yes, and it is a native */
dvander@27	3596	} /* if */
dvander@27	3597	assert(sym->vclass==sGLOBAL);
dvander@27	3598	if ((sym->usage & uPROTOTYPED)!=0 && sym->tag!=tag)
dvander@27	3599	error(25); /* mismatch from earlier prototype */
dvander@27	3600	if ((sym->usage & uDEFINE)==0) {
dvander@27	3601	/* as long as the function stays undefined, update the address and the tag */
dvander@27	3602	if (sym->states==NULL)
dvander@27	3603	sym->addr=code_idx;
dvander@27	3604	sym->tag=tag;
dvander@27	3605	} /* if */
dvander@27	3606	} else {
dvander@27	3607	/* don't set the "uDEFINE" flag; it may be a prototype */
dvander@27	3608	sym=addsym(name,code_idx,iFUNCTN,sGLOBAL,tag,0);
dvander@27	3609	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	3610	/* assume no arguments */
dvander@27	3611	sym->dim.arglist=(arginfo)malloc(1sizeof(arginfo));
dvander@27	3612	sym->dim.arglist[0].ident=0;
dvander@27	3613	/* set library ID to NULL (only for native functions) */
dvander@27	3614	sym->x.lib=NULL;
dvander@27	3615	/* set the required stack size to zero (only for non-native functions) */
dvander@27	3616	sym->x.stacksize=1; /* 1 for PROC opcode */
dvander@27	3617	} /* if */
ds@52	3618	if (pc_deprecate!=NULL) {
dvander@27	3619	assert(sym!=NULL);
ds@52	3620	sym->flags\|=flgDEPRECATED;
dvander@27	3621	if (sc_status==statWRITE) {
dvander@27	3622	if (sym->documentation!=NULL) {
dvander@27	3623	free(sym->documentation);
dvander@27	3624	sym->documentation=NULL;
dvander@27	3625	} /* if */
ds@52	3626	sym->documentation=pc_deprecate;
dvander@27	3627	} else {
ds@52	3628	free(pc_deprecate);
dvander@27	3629	} /* if */
ds@52	3630	pc_deprecate=NULL;
dvander@27	3631	} /* if */
dvander@27	3632
dvander@27	3633	return sym;
dvander@27	3634	}
dvander@27	3635
dvander@27	3636	/* This routine adds symbolic information for each argument.
dvander@27	3637	*/
dvander@27	3638	static void define_args(void)
dvander@27	3639	{
dvander@27	3640	symbol *sym;
dvander@27	3641
dvander@27	3642	/* At this point, no local variables have been declared. All
dvander@27	3643	* local symbols are function arguments.
dvander@27	3644	*/
dvander@27	3645	sym=loctab.next;
dvander@27	3646	while (sym!=NULL) {
dvander@27	3647	assert(sym->ident!=iLABEL);
dvander@27	3648	assert(sym->vclass==sLOCAL);
dvander@27	3649	markexpr(sLDECL,sym->name,sym->addr); /* mark for better optimization */
dvander@27	3650	sym=sym->next;
dvander@27	3651	} /* while */
dvander@27	3652	}
dvander@27	3653
dvander@27	3654	static int operatorname(char *name)
dvander@27	3655	{
dvander@27	3656	int opertok;
dvander@27	3657	char *str;
dvander@27	3658	cell val;
dvander@27	3659
dvander@27	3660	assert(name!=NULL);
dvander@27	3661
dvander@27	3662	/* check the operator */
dvander@27	3663	opertok=lex(&val,&str);
dvander@27	3664	switch (opertok) {
dvander@27	3665	case '+':
dvander@27	3666	case '-':
dvander@27	3667	case '*':
dvander@27	3668	case '/':
dvander@27	3669	case '%':
dvander@27	3670	case '>':
dvander@27	3671	case '<':
dvander@27	3672	case '!':
dvander@27	3673	case '~':
dvander@27	3674	case '=':
dvander@27	3675	name[0]=(char)opertok;
dvander@27	3676	name[1]='\0';
dvander@27	3677	break;
dvander@27	3678	case tINC:
dvander@27	3679	strcpy(name,"++");
dvander@27	3680	break;
dvander@27	3681	case tDEC:
dvander@27	3682	strcpy(name,"--");
dvander@27	3683	break;
dvander@27	3684	case tlEQ:
dvander@27	3685	strcpy(name,"==");
dvander@27	3686	break;
dvander@27	3687	case tlNE:
dvander@27	3688	strcpy(name,"!=");
dvander@27	3689	break;
dvander@27	3690	case tlLE:
dvander@27	3691	strcpy(name,"<=");
dvander@27	3692	break;
dvander@27	3693	case tlGE:
dvander@27	3694	strcpy(name,">=");
dvander@27	3695	break;
dvander@27	3696	default:
dvander@27	3697	name[0]='\0';
dvander@27	3698	error(7); /* operator cannot be redefined (or bad operator name) */
dvander@27	3699	return 0;
dvander@27	3700	} /* switch */
dvander@27	3701
dvander@27	3702	return opertok;
dvander@27	3703	}
dvander@27	3704
dvander@27	3705	static int operatoradjust(int opertok,symbol sym,char opername,int resulttag)
dvander@27	3706	{
dvander@27	3707	int tags[2]={0,0};
dvander@27	3708	int count=0;
dvander@27	3709	arginfo *arg;
dvander@27	3710	char tmpname[sNAMEMAX+1];
dvander@27	3711	symbol *oldsym;
dvander@27	3712
dvander@27	3713	if (opertok==0)
dvander@27	3714	return TRUE;
dvander@27	3715
dvander@27	3716	assert(sym!=NULL && sym->ident==iFUNCTN && sym->dim.arglist!=NULL);
dvander@27	3717	/* count arguments and save (first two) tags */
dvander@27	3718	while (arg=&sym->dim.arglist[count], arg->ident!=0) {
dvander@27	3719	if (count<2) {
dvander@27	3720	if (arg->numtags>1)
dvander@27	3721	error(65,count+1); /* function argument may only have a single tag */
dvander@27	3722	else if (arg->numtags==1)
dvander@27	3723	tags[count]=arg->tags[0];
dvander@27	3724	} /* if */
dvander@27	3725	if (opertok=='~' && count==0) {
dvander@27	3726	if (arg->ident!=iREFARRAY)
dvander@27	3727	error(73,arg->name);/* must be an array argument */
dvander@27	3728	} else {
ds@841	3729	//if (arg->ident!=iVARIABLE)
ds@841	3730	//error(66,arg->name);/* must be non-reference argument */
dvander@27	3731	} /* if */
dvander@27	3732	if (arg->hasdefault)
dvander@27	3733	error(59,arg->name); /* arguments of an operator may not have a default value */
dvander@27	3734	count++;
dvander@27	3735	} /* while */
dvander@27	3736
dvander@27	3737	/* for '!', '++' and '--', count must be 1
dvander@27	3738	* for '-', count may be 1 or 2
dvander@27	3739	* for '=', count must be 1, and the resulttag is also important
dvander@27	3740	* for all other (binary) operators and the special '~' operator, count must be 2
dvander@27	3741	*/
dvander@27	3742	switch (opertok) {
dvander@27	3743	case '!':
dvander@27	3744	case '=':
dvander@27	3745	case tINC:
dvander@27	3746	case tDEC:
dvander@27	3747	if (count!=1)
dvander@27	3748	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3749	break;
dvander@27	3750	case '-':
dvander@27	3751	if (count!=1 && count!=2)
dvander@27	3752	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3753	break;
dvander@27	3754	default:
dvander@27	3755	if (count!=2)
dvander@27	3756	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3757	} /* switch */
dvander@27	3758
dvander@27	3759	if (tags[0]==0 && (opertok!='=' && tags[1]==0 \|\| opertok=='=' && resulttag==0))
dvander@27	3760	error(64); /* cannot change predefined operators */
dvander@27	3761
dvander@27	3762	/* change the operator name */
dvander@27	3763	assert(strlen(opername)>0);
dvander@27	3764	operator_symname(tmpname,opername,tags[0],tags[1],count,resulttag);
dvander@27	3765	if ((oldsym=findglb(tmpname,sGLOBAL))!=NULL) {
dvander@27	3766	int i;
dvander@27	3767	if ((oldsym->usage & uDEFINE)!=0) {
dvander@27	3768	char errname[2*sNAMEMAX+16];
dvander@27	3769	funcdisplayname(errname,tmpname);
dvander@27	3770	error(21,errname); /* symbol already defined */
dvander@27	3771	} /* if */
dvander@27	3772	sym->usage\|=oldsym->usage; /* copy flags from the previous definition */
dvander@27	3773	for (i=0; i<oldsym->numrefers; i++)
dvander@27	3774	if (oldsym->refer[i]!=NULL)
dvander@27	3775	refer_symbol(sym,oldsym->refer[i]);
dvander@27	3776	delete_symbol(&glbtab,oldsym);
dvander@27	3777	} /* if */
dvander@27	3778	strcpy(sym->name,tmpname);
dvander@27	3779	sym->hash=namehash(sym->name);/* calculate new hash */
dvander@27	3780
dvander@27	3781	/* operators should return a value, except the '~' operator */
dvander@27	3782	if (opertok!='~')
dvander@27	3783	sym->usage \|= uRETVALUE;
dvander@27	3784
dvander@27	3785	return TRUE;
dvander@27	3786	}
dvander@27	3787
dvander@27	3788	static int check_operatortag(int opertok,int resulttag,char *opername)
dvander@27	3789	{
dvander@27	3790	assert(opername!=NULL && strlen(opername)>0);
dvander@27	3791	switch (opertok) {
dvander@27	3792	case '!':
dvander@27	3793	case '<':
dvander@27	3794	case '>':
dvander@27	3795	case tlEQ:
dvander@27	3796	case tlNE:
dvander@27	3797	case tlLE:
dvander@27	3798	case tlGE:
dvander@27	3799	if (resulttag!=pc_addtag("bool")) {
dvander@27	3800	error(63,opername,"bool:"); /* operator X requires a "bool:" result tag */
dvander@27	3801	return FALSE;
dvander@27	3802	} /* if */
dvander@27	3803	break;
dvander@27	3804	case '~':
dvander@27	3805	if (resulttag!=0) {
dvander@27	3806	error(63,opername,"_:"); /* operator "~" requires a "_:" result tag */
dvander@27	3807	return FALSE;
dvander@27	3808	} /* if */
dvander@27	3809	break;
dvander@27	3810	} /* switch */
dvander@27	3811	return TRUE;
dvander@27	3812	}
dvander@27	3813
dvander@27	3814	static char tag2str(char dest,int tag)
dvander@27	3815	{
dvander@27	3816	tag &= TAGMASK;
dvander@27	3817	assert(tag>=0);
dvander@27	3818	sprintf(dest,"0%x",tag);
dvander@27	3819	return isdigit(dest[1]) ? &dest[1] : dest;
dvander@27	3820	}
dvander@27	3821
dvander@27	3822	SC_FUNC char operator_symname(char symname,char *opername,int tag1,int tag2,int numtags,int resulttag)
dvander@27	3823	{
dvander@27	3824	char tagstr1[10], tagstr2[10];
dvander@27	3825	int opertok;
dvander@27	3826
dvander@27	3827	assert(numtags>=1 && numtags<=2);
dvander@27	3828	opertok= (opername[1]=='\0') ? opername[0] : 0;
dvander@27	3829	if (opertok=='=')
dvander@27	3830	sprintf(symname,"%s%s%s",tag2str(tagstr1,resulttag),opername,tag2str(tagstr2,tag1));
dvander@27	3831	else if (numtags==1 \|\| opertok=='~')
dvander@27	3832	sprintf(symname,"%s%s",opername,tag2str(tagstr1,tag1));
dvander@27	3833	else
dvander@27	3834	sprintf(symname,"%s%s%s",tag2str(tagstr1,tag1),opername,tag2str(tagstr2,tag2));
dvander@27	3835	return symname;
dvander@27	3836	}
dvander@27	3837
dvander@27	3838	static int parse_funcname(char fname,int tag1,int tag2,char opname)
dvander@27	3839	{
dvander@27	3840	char ptr,name;
dvander@27	3841	int unary;
dvander@27	3842
dvander@27	3843	/* tags are only positive, so if the function name starts with a '-',
dvander@27	3844	* the operator is an unary '-' or '--' operator.
dvander@27	3845	*/
dvander@27	3846	if (*fname=='-') {
dvander@27	3847	*tag1=0;
dvander@27	3848	unary=TRUE;
dvander@27	3849	ptr=fname;
dvander@27	3850	} else {
dvander@27	3851	*tag1=(int)strtol(fname,&ptr,16);
dvander@27	3852	unary= ptr==fname; /* unary operator if it doesn't start with a tag name */
dvander@27	3853	} /* if */
dvander@27	3854	assert(!unary \|\| *tag1==0);
dvander@27	3855	assert(*ptr!='\0');
dvander@27	3856	for (name=opname; !isdigit(*ptr); )
dvander@27	3857	name++ = ptr++;
dvander@27	3858	*name='\0';
dvander@27	3859	*tag2=(int)strtol(ptr,NULL,16);
dvander@27	3860	return unary;
dvander@27	3861	}
dvander@27	3862
dvander@132	3863	constvalue *find_tag_byval(int tag)
dvander@27	3864	{
dvander@27	3865	constvalue *tagsym;
dvander@27	3866	tagsym=find_constval_byval(&tagname_tab,tag & ~PUBLICTAG);
dvander@27	3867	if (tagsym==NULL)
dvander@27	3868	tagsym=find_constval_byval(&tagname_tab,tag \| PUBLICTAG);
dvander@27	3869	return tagsym;
dvander@27	3870	}
dvander@27	3871
dvander@27	3872	SC_FUNC char funcdisplayname(char dest,char *funcname)
dvander@27	3873	{
dvander@27	3874	int tags[2];
dvander@27	3875	char opname[10];
dvander@27	3876	constvalue *tagsym[2];
dvander@27	3877	int unary;
dvander@27	3878
dvander@27	3879	if (isalpha(funcname) \|\| funcname=='_' \|\| funcname==PUBLIC_CHAR \|\| funcname=='\0') {
dvander@27	3880	if (dest!=funcname)
dvander@27	3881	strcpy(dest,funcname);
dvander@27	3882	return dest;
dvander@27	3883	} /* if */
dvander@27	3884
dvander@27	3885	unary=parse_funcname(funcname,&tags[0],&tags[1],opname);
dvander@27	3886	tagsym[1]=find_tag_byval(tags[1]);
dvander@27	3887	assert(tagsym[1]!=NULL);
dvander@27	3888	if (unary) {
dvander@27	3889	sprintf(dest,"operator%s(%s:)",opname,tagsym[1]->name);
dvander@27	3890	} else {
dvander@27	3891	tagsym[0]=find_tag_byval(tags[0]);
dvander@27	3892	assert(tagsym[0]!=NULL);
dvander@27	3893	/* special case: the assignment operator has the return value as the 2nd tag */
dvander@27	3894	if (opname[0]=='=' && opname[1]=='\0')
dvander@27	3895	sprintf(dest,"%s:operator%s(%s:)",tagsym[0]->name,opname,tagsym[1]->name);
dvander@27	3896	else
dvander@27	3897	sprintf(dest,"operator%s(%s:,%s:)",opname,tagsym[0]->name,tagsym[1]->name);
dvander@27	3898	} /* if */
dvander@27	3899	return dest;
dvander@27	3900	}
dvander@27	3901
dvander@27	3902	static void funcstub(int fnative)
dvander@27	3903	{
dvander@27	3904	int tok,tag,fpublic;
dvander@27	3905	char *str;
dvander@27	3906	cell val,size;
dvander@27	3907	char symbolname[sNAMEMAX+1];
dvander@27	3908	int idxtag[sDIMEN_MAX];
dvander@27	3909	int dim[sDIMEN_MAX];
dvander@27	3910	int numdim;
dvander@27	3911	symbol sym,sub;
dvander@27	3912	int opertok;
dvander@27	3913
dvander@27	3914	opertok=0;
dvander@27	3915	lastst=0;
dvander@27	3916	litidx=0; /* clear the literal pool */
dvander@27	3917	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	3918
dvander@27	3919	tag=pc_addtag(NULL); /* get the tag of the return value */
dvander@27	3920	numdim=0;
dvander@27	3921	while (matchtoken('[')) {
dvander@27	3922	/* the function returns an array, get this tag for the index and the array
dvander@27	3923	* dimensions
dvander@27	3924	*/
dvander@27	3925	if (numdim == sDIMEN_MAX) {
dvander@27	3926	error(53); /* exceeding maximum number of dimensions */
dvander@27	3927	return;
dvander@27	3928	} /* if */
dvander@27	3929	size=needsub(&idxtag[numdim],NULL); /* get size; size==0 for "var[]" */
dvander@27	3930	if (size==0)
dvander@27	3931	error(9); /* invalid array size */
dvander@27	3932	#if INT_MAX < LONG_MAX
dvander@27	3933	if (size > INT_MAX)
ds@841	3934	error(125); /* overflow, exceeding capacity */
dvander@27	3935	#endif
dvander@27	3936	dim[numdim++]=(int)size;
dvander@27	3937	} /* while */
dvander@27	3938
dvander@191	3939	if (tag == pc_tag_string && numdim && dim[numdim-1])
dvander@151	3940	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3941
dvander@27	3942	tok=lex(&val,&str);
dvander@27	3943	fpublic=(tok==tPUBLIC) \|\| (tok==tSYMBOL && str[0]==PUBLIC_CHAR);
dvander@27	3944	if (fnative) {
dvander@27	3945	if (fpublic \|\| tok==tSTOCK \|\| tok==tSTATIC \|\| tok==tSYMBOL && *str==PUBLIC_CHAR)
dvander@27	3946	error(42); /* invalid combination of class specifiers */
dvander@27	3947	} else {
dvander@27	3948	if (tok==tPUBLIC \|\| tok==tSTOCK \|\| tok==tSTATIC)
dvander@27	3949	tok=lex(&val,&str);
dvander@27	3950	} /* if */
dvander@27	3951
dvander@27	3952	if (tok==tOPERATOR) {
dvander@27	3953	opertok=operatorname(symbolname);
dvander@27	3954	if (opertok==0)
dvander@27	3955	return; /* error message already given */
dvander@27	3956	check_operatortag(opertok,tag,symbolname);
dvander@27	3957	} else {
dvander@27	3958	if (tok!=tSYMBOL && freading) {
dvander@27	3959	error(10); /* illegal function or declaration */
dvander@27	3960	return;
dvander@27	3961	} /* if */
dvander@27	3962	strcpy(symbolname,str);
dvander@27	3963	} /* if */
dvander@27	3964	needtoken('('); /* only functions may be native/forward */
dvander@27	3965
dvander@27	3966	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	3967	if (sym==NULL)
dvander@27	3968	return;
dvander@27	3969	if (fnative) {
dvander@27	3970	sym->usage=(char)(uNATIVE \| uRETVALUE \| uDEFINE \| (sym->usage & uPROTOTYPED));
dvander@27	3971	sym->x.lib=curlibrary;
dvander@27	3972	} else if (fpublic) {
dvander@27	3973	sym->usage\|=uPUBLIC;
dvander@27	3974	} /* if */
dvander@27	3975	sym->usage\|=uFORWARD;
dvander@27	3976
dvander@27	3977	declargs(sym,FALSE);
dvander@27	3978	/* "declargs()" found the ")" */
dvander@27	3979	sc_attachdocumentation(sym); /* attach any documenation to the function */
dvander@27	3980	if (!operatoradjust(opertok,sym,symbolname,tag))
dvander@27	3981	sym->usage &= ~uDEFINE;
dvander@27	3982
dvander@27	3983	if (getstates(symbolname)!=0) {
dvander@27	3984	if (fnative \|\| opertok!=0)
dvander@27	3985	error(82); /* native functions and operators may not have states */
dvander@27	3986	else
dvander@27	3987	error(231); /* ignoring state specifications on forward declarations */
dvander@27	3988	} /* if */
dvander@27	3989
dvander@27	3990	/* for a native operator, also need to specify an "exported" function name;
dvander@27	3991	* for a native function, this is optional
dvander@27	3992	*/
dvander@27	3993	if (fnative) {
dvander@27	3994	if (opertok!=0) {
dvander@27	3995	needtoken('=');
dvander@27	3996	lexpush(); /* push back, for matchtoken() to retrieve again */
dvander@27	3997	} /* if */
dvander@27	3998	if (matchtoken('=')) {
dvander@27	3999	/* allow number or symbol */
dvander@27	4000	if (matchtoken(tSYMBOL)) {
dvander@27	4001	tokeninfo(&val,&str);
dvander@27	4002	insert_alias(sym->name,str);
dvander@27	4003	} else {
dvander@27	4004	constexpr(&val,NULL,NULL);
dvander@27	4005	sym->addr=val;
dvander@27	4006	/* At the moment, I have assumed that this syntax is only valid if
dvander@27	4007	* val < 0. To properly mix "normal" native functions and indexed
dvander@27	4008	* native functions, one should use negative indices anyway.
dvander@27	4009	* Special code for a negative index in sym->addr exists in SC4.C
dvander@27	4010	* (ffcall()) and in SC6.C (the loops for counting the number of native
dvander@27	4011	* variables and for writing them).
dvander@27	4012	*/
dvander@27	4013	} /* if */
dvander@27	4014	} /* if */
dvander@27	4015	} /* if */
dvander@27	4016	needtoken(tTERM);
dvander@27	4017
dvander@27	4018	/* attach the array to the function symbol */
dvander@27	4019	if (numdim>0) {
dvander@27	4020	assert(sym!=NULL);
dvander@27	4021	sub=addvariable(symbolname,0,iARRAY,sGLOBAL,tag,dim,numdim,idxtag);
dvander@27	4022	sub->parent=sym;
dvander@27	4023	} /* if */
dvander@27	4024
dvander@27	4025	litidx=0; /* clear the literal pool */
dvander@27	4026	delete_symbols(&loctab,0,TRUE,TRUE);/* clear local variables queue */
dvander@27	4027	}
dvander@27	4028
dvander@27	4029	/* newfunc - begin a function
dvander@27	4030	*
dvander@27	4031	* This routine is called from "parse" and tries to make a function
dvander@27	4032	* out of the following text
dvander@27	4033	*
dvander@27	4034	* Global references: funcstatus,lastst,litidx
dvander@27	4035	* rettype (altered)
dvander@27	4036	* curfunc (altered)
dvander@27	4037	* declared (altered)
dvander@27	4038	* glb_declared (altered)
dvander@27	4039	* sc_alignnext (altered)
dvander@27	4040	*/
dvander@27	4041	static int newfunc(char *firstname,int firsttag,int fpublic,int fstatic,int stock)
dvander@27	4042	{
dvander@27	4043	symbol *sym;
dvander@27	4044	int argcnt,tok,tag,funcline;
dvander@27	4045	int opertok,opererror;
dvander@27	4046	char symbolname[sNAMEMAX+1];
dvander@27	4047	char *str;
dvander@27	4048	cell val,cidx,glbdecl;
dvander@27	4049	short filenum;
dvander@27	4050	int state_id;
dvander@27	4051
dvander@27	4052	assert(litidx==0); /* literal queue should be empty */
dvander@27	4053	litidx=0; /* clear the literal pool (should already be empty) */
dvander@27	4054	opertok=0;
dvander@27	4055	lastst=0; /* no statement yet */
dvander@27	4056	cidx=0; /* just to avoid compiler warnings */
dvander@27	4057	glbdecl=0;
dvander@27	4058	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	4059	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	4060
dvander@27	4061	if (firstname!=NULL) {
dvander@27	4062	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	4063	strcpy(symbolname,firstname); /* save symbol name */
dvander@27	4064	tag=firsttag;
dvander@27	4065	} else {
dvander@27	4066	tag= (firsttag>=0) ? firsttag : pc_addtag(NULL);
dvander@27	4067	tok=lex(&val,&str);
dvander@27	4068	assert(!fpublic);
dvander@27	4069	if (tok==tNATIVE \|\| tok==tPUBLIC && stock)
dvander@27	4070	error(42); /* invalid combination of class specifiers */
dvander@27	4071	if (tok==tOPERATOR) {
dvander@27	4072	opertok=operatorname(symbolname);
dvander@27	4073	if (opertok==0)
dvander@27	4074	return TRUE; /* error message already given */
dvander@27	4075	check_operatortag(opertok,tag,symbolname);
dvander@27	4076	} else {
dvander@27	4077	if (tok!=tSYMBOL && freading) {
dvander@27	4078	error(20,str); /* invalid symbol name */
dvander@27	4079	return FALSE;
dvander@27	4080	} /* if */
dvander@27	4081	assert(strlen(str)<=sNAMEMAX);
dvander@27	4082	strcpy(symbolname,str);
dvander@27	4083	} /* if */
dvander@27	4084	} /* if */
dvander@27	4085	/* check whether this is a function or a variable declaration */
dvander@27	4086	if (!matchtoken('('))
dvander@27	4087	return FALSE;
dvander@27	4088	/* so it is a function, proceed */
dvander@27	4089	funcline=fline; /* save line at which the function is defined */
dvander@27	4090	if (symbolname[0]==PUBLIC_CHAR) {
dvander@27	4091	fpublic=TRUE; /* implicitly public function */
dvander@27	4092	if (stock)
dvander@27	4093	error(42); /* invalid combination of class specifiers */
dvander@27	4094	} /* if */
dvander@27	4095	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	4096	if (sym==NULL \|\| (sym->usage & uNATIVE)!=0)
dvander@27	4097	return TRUE; /* it was recognized as a function declaration, but not as a valid one */
dvander@27	4098	if (fpublic)
dvander@27	4099	sym->usage\|=uPUBLIC;
dvander@27	4100	if (fstatic)
dvander@27	4101	sym->fnumber=filenum;
dvander@27	4102	/* if the function was used before being declared, and it has a tag for the
dvander@27	4103	* result, add a third pass (as second "skimming" parse) because the function
dvander@27	4104	* result may have been used with user-defined operators, which have now
dvander@27	4105	* been incorrectly flagged (as the return tag was unknown at the time of
dvander@27	4106	* the call)
dvander@27	4107	*/
dvander@27	4108	if ((sym->usage & (uPROTOTYPED \| uREAD))==uREAD && sym->tag!=0) {
dvander@27	4109	int curstatus=sc_status;
dvander@27	4110	sc_status=statWRITE; /* temporarily set status to WRITE, so the warning isn't blocked */
dvander@27	4111	#if 0 /* SourceMod - silly, should be removed in first pass, so removed */
dvander@27	4112	error(208);
dvander@27	4113	#endif
dvander@27	4114	sc_status=curstatus;
dvander@27	4115	sc_reparse=TRUE; /* must add another pass to "initial scan" phase */
dvander@27	4116	} /* if */
dvander@27	4117	#if 0 /* Not used for SourceMod */
dvander@27	4118	/* we want public functions to be explicitly prototyped, as they are called
dvander@27	4119	* from the outside
dvander@27	4120	*/
dvander@27	4121	if (fpublic && (sym->usage & uFORWARD)==0)
dvander@27	4122	error(235,symbolname);
dvander@27	4123	#endif
dvander@27	4124	/* declare all arguments */
dvander@27	4125	argcnt=declargs(sym,TRUE);
dvander@27	4126	opererror=!operatoradjust(opertok,sym,symbolname,tag);
dvander@27	4127	if (strcmp(symbolname,uMAINFUNC)==0 \|\| strcmp(symbolname,uENTRYFUNC)==0) {
dvander@27	4128	if (argcnt>0)
dvander@27	4129	error(5); /* "main()" and "entry()" functions may not have any arguments */
dvander@27	4130	sym->usage\|=uREAD; /* "main()" is the program's entry point: always used */
dvander@27	4131	} /* if */
dvander@27	4132	state_id=getstates(symbolname);
dvander@27	4133	if (state_id>0 && (opertok!=0 \|\| strcmp(symbolname,uMAINFUNC)==0))
dvander@27	4134	error(82); /* operators may not have states, main() may neither */
dvander@27	4135	attachstatelist(sym,state_id);
dvander@27	4136	/* "declargs()" found the ")"; if a ";" appears after this, it was a
dvander@27	4137	* prototype */
dvander@27	4138	if (matchtoken(';')) {
dvander@27	4139	sym->usage\|=uFORWARD;
dvander@27	4140	if (!sc_needsemicolon)
dvander@745	4141	error(10); /* old style prototypes used with optional semicolumns */
dvander@27	4142	delete_symbols(&loctab,0,TRUE,TRUE); /* prototype is done; forget everything */
dvander@27	4143	return TRUE;
dvander@27	4144	} /* if */
dvander@27	4145	/* so it is not a prototype, proceed */
dvander@27	4146	/* if this is a function that is not referred to (this can only be detected
dvander@27	4147	* in the second stage), shut code generation off */
dvander@27	4148	if (sc_status==statWRITE && (sym->usage & uREAD)==0 && !fpublic) {
dvander@27	4149	sc_status=statSKIP;
dvander@27	4150	cidx=code_idx;
dvander@27	4151	glbdecl=glb_declared;
dvander@27	4152	} /* if */
ds@1265	4153	if ((sym->flags & flgDEPRECATED) != 0 && (sym->usage & uSTOCK) == 0) {
dvander@27	4154	char *ptr= (sym->documentation!=NULL) ? sym->documentation : "";
ds@52	4155	error(234,symbolname,ptr); /* deprecated (probably a public function) */
dvander@27	4156	} /* if */
dvander@27	4157	begcseg();
dvander@27	4158	sym->usage\|=uDEFINE; /* set the definition flag */
dvander@27	4159	if (stock)
dvander@27	4160	sym->usage\|=uSTOCK;
dvander@27	4161	if (opertok!=0 && opererror)
dvander@27	4162	sym->usage &= ~uDEFINE;
dvander@27	4163	/* if the function has states, dump the label to the start of the function */
dvander@27	4164	if (state_id!=0) {
dvander@27	4165	constvalue *ptr=sym->states->next;
dvander@27	4166	while (ptr!=NULL) {
dvander@27	4167	assert(sc_status!=statWRITE \|\| strlen(ptr->name)>0);
dvander@27	4168	if (ptr->index==state_id) {
dvander@27	4169	setlabel((int)strtol(ptr->name,NULL,16));
dvander@27	4170	break;
dvander@27	4171	} /* if */
dvander@27	4172	ptr=ptr->next;
dvander@27	4173	} /* while */
dvander@27	4174	} /* if */
dvander@27	4175	startfunc(sym->name); /* creates stack frame */
dvander@27	4176	insert_dbgline(funcline);
dvander@27	4177	setline(FALSE);
dvander@27	4178	if (sc_alignnext) {
dvander@27	4179	alignframe(sc_dataalign);
dvander@27	4180	sc_alignnext=FALSE;
dvander@27	4181	} /* if */
dvander@27	4182	declared=0; /* number of local cells */
dvander@117	4183	resetstacklist();
dvander@118	4184	resetheaplist();
dvander@27	4185	rettype=(sym->usage & uRETVALUE); /* set "return type" variable */
dvander@27	4186	curfunc=sym;
dvander@27	4187	define_args(); /* add the symbolic info for the function arguments */
dvander@27	4188	#if !defined SC_LIGHT
dvander@27	4189	if (matchtoken('{')) {
dvander@27	4190	lexpush();
dvander@27	4191	} else {
dvander@27	4192	/* Insert a separator so that comments following the statement will not
dvander@27	4193	* be attached to this function; they should be attached to the next
dvander@27	4194	* function. This is not a problem for functions having a compound block,
dvander@27	4195	* because the closing brace is an explicit "end token" for the function.
dvander@27	4196	* With single statement functions, the preprocessor may overread the
dvander@27	4197	* source code before the parser determines an "end of statement".
dvander@27	4198	*/
dvander@27	4199	insert_docstring_separator();
dvander@27	4200	} /* if */
dvander@27	4201	#endif
dvander@27	4202	sc_curstates=state_id;/* set state id, for accessing global state variables */
dvander@27	4203	statement(NULL,FALSE);
dvander@27	4204	sc_curstates=0;
dvander@27	4205	if ((rettype & uRETVALUE)!=0)
dvander@27	4206	sym->usage\|=uRETVALUE;
dvander@27	4207	if (declared!=0) {
dvander@27	4208	/* This happens only in a very special (and useless) case, where a function
dvander@27	4209	* has only a single statement in its body (no compound block) and that
dvander@27	4210	* statement declares a new variable
dvander@27	4211	*/
dvander@459	4212	popstacklist(1);
dvander@27	4213	declared=0;
dvander@27	4214	} /* if */
dvander@27	4215	if ((lastst!=tRETURN) && (lastst!=tGOTO)){
dvander@27	4216	ldconst(0,sPRI);
dvander@27	4217	ffret(strcmp(sym->name,uENTRYFUNC)!=0);
dvander@27	4218	if ((sym->usage & uRETVALUE)!=0) {
dvander@27	4219	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	4220	funcdisplayname(symname,sym->name);
dvander@27	4221	error(209,symname); /* function should return a value */
dvander@27	4222	} /* if */
dvander@27	4223	} /* if */
dvander@27	4224	endfunc();
dvander@27	4225	sym->codeaddr=code_idx;
dvander@27	4226	sc_attachdocumentation(sym); /* attach collected documenation to the function */
dvander@27	4227	if (litidx) { /* if there are literals defined */
dvander@27	4228	glb_declared+=litidx;
dvander@27	4229	begdseg(); /* flip to DATA segment */
dvander@27	4230	dumplits(); /* dump literal strings */
dvander@27	4231	litidx=0;
dvander@27	4232	} /* if */
dvander@27	4233	testsymbols(&loctab,0,TRUE,TRUE); /* test for unused arguments and labels */
dvander@27	4234	delete_symbols(&loctab,0,TRUE,TRUE); /* clear local variables queue */
dvander@27	4235	assert(loctab.next==NULL);
dvander@27	4236	curfunc=NULL;
dvander@27	4237	if (sc_status==statSKIP) {
dvander@27	4238	sc_status=statWRITE;
dvander@27	4239	code_idx=cidx;
dvander@27	4240	glb_declared=glbdecl;
dvander@27	4241	} /* if */
dvander@27	4242	return TRUE;
dvander@27	4243	}
dvander@27	4244
dvander@27	4245	static int argcompare(arginfo a1,arginfo a2)
dvander@27	4246	{
dvander@27	4247	int result,level,i;
dvander@27	4248
dvander@27	4249	#if 0 /* SourceMod uses case insensitive args for forwards */
dvander@27	4250	result= strcmp(a1->name,a2->name)==0; /* name */
dvander@27	4251	#else
dvander@27	4252	result=1;
dvander@27	4253	#endif
dvander@27	4254	if (result)
dvander@27	4255	result= a1->ident==a2->ident; /* type/class */
dvander@27	4256	if (result)
dvander@27	4257	result= a1->usage==a2->usage; /* "const" flag */
dvander@27	4258	if (result)
dvander@27	4259	result= a1->numtags==a2->numtags; /* tags (number and names) */
dvander@27	4260	for (i=0; result && i<a1->numtags; i++)
dvander@27	4261	result= a1->tags[i]==a2->tags[i];
dvander@27	4262	if (result)
dvander@27	4263	result= a1->numdim==a2->numdim; /* array dimensions & index tags */
dvander@27	4264	for (level=0; result && level<a1->numdim; level++)
dvander@27	4265	result= a1->dim[level]==a2->dim[level];
dvander@27	4266	for (level=0; result && level<a1->numdim; level++)
dvander@27	4267	result= a1->idxtag[level]==a2->idxtag[level];
dvander@27	4268	if (result)
dvander@27	4269	result= a1->hasdefault==a2->hasdefault; /* availability of default value */
dvander@27	4270	if (a1->hasdefault) {
dvander@27	4271	if (a1->ident==iREFARRAY) {
dvander@27	4272	if (result)
dvander@27	4273	result= a1->defvalue.array.size==a2->defvalue.array.size;
dvander@27	4274	if (result)
dvander@27	4275	result= a1->defvalue.array.arraysize==a2->defvalue.array.arraysize;
dvander@27	4276	/* ??? should also check contents of the default array (these troubles
dvander@27	4277	* go away in a 2-pass compiler that forbids double declarations, but
dvander@27	4278	* Pawn currently does not forbid them) */
dvander@27	4279	} else {
dvander@27	4280	if (result) {
dvander@286	4281	if ((a1->hasdefault & uSIZEOF)!=0 \|\| (a1->hasdefault & uTAGOF)!=0 \|\| (a1->hasdefault & uCOUNTOF)!=0)
dvander@27	4282	result= a1->hasdefault==a2->hasdefault
dvander@27	4283	&& strcmp(a1->defvalue.size.symname,a2->defvalue.size.symname)==0
dvander@27	4284	&& a1->defvalue.size.level==a2->defvalue.size.level;
dvander@27	4285	else
dvander@27	4286	result= a1->defvalue.val==a2->defvalue.val;
dvander@27	4287	} /* if */
dvander@27	4288	} /* if */
dvander@27	4289	if (result)
dvander@27	4290	result= a1->defvalue_tag==a2->defvalue_tag;
dvander@27	4291	} /* if */
dvander@27	4292	return result;
dvander@27	4293	}
dvander@27	4294
dvander@27	4295	/* declargs()
dvander@27	4296	*
dvander@27	4297	* This routine adds an entry in the local symbol table for each argument
dvander@27	4298	* found in the argument list. It returns the number of arguments.
dvander@27	4299	*/
dvander@27	4300	static int declargs(symbol *sym,int chkshadow)
dvander@27	4301	{
dvander@27	4302	#define MAXTAGS 16
dvander@27	4303	char *ptr;
dvander@27	4304	int argcnt,oldargcnt,tok,tags[MAXTAGS],numtags;
dvander@27	4305	cell val;
dvander@27	4306	arginfo arg, *arglist;
dvander@27	4307	char name[sNAMEMAX+1];
dvander@27	4308	int ident,fpublic,fconst;
dvander@27	4309	int idx;
dvander@27	4310
dvander@27	4311	/* if the function is already defined earlier, get the number of arguments
dvander@27	4312	* of the existing definition
dvander@27	4313	*/
dvander@27	4314	oldargcnt=0;
dvander@27	4315	if ((sym->usage & uPROTOTYPED)!=0)
dvander@27	4316	while (sym->dim.arglist[oldargcnt].ident!=0)
dvander@27	4317	oldargcnt++;
dvander@27	4318	argcnt=0; /* zero aruments up to now */
dvander@27	4319	ident=iVARIABLE;
dvander@27	4320	numtags=0;
dvander@27	4321	fconst=FALSE;
dvander@338	4322	fpublic= (sym->usage & (uPUBLIC\|uSTOCK))!=0;
dvander@27	4323	/* the '(' parantheses has already been parsed */
dvander@27	4324	if (!matchtoken(')')){
dvander@27	4325	do { /* there are arguments; process them */
dvander@27	4326	/* any legal name increases argument count (and stack offset) */
dvander@27	4327	tok=lex(&val,&ptr);
dvander@27	4328	switch (tok) {
dvander@27	4329	case 0:
dvander@27	4330	/* nothing */
dvander@27	4331	break;
dvander@27	4332	case '&':
dvander@27	4333	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4334	error(1,"-identifier-","&");
dvander@27	4335	ident=iREFERENCE;
dvander@27	4336	break;
dvander@27	4337	case tCONST:
dvander@27	4338	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4339	error(1,"-identifier-","const");
dvander@27	4340	fconst=TRUE;
dvander@27	4341	break;
dvander@27	4342	case tLABEL:
dvander@27	4343	if (numtags>0)
dvander@27	4344	error(1,"-identifier-","-tagname-");
dvander@27	4345	tags[0]=pc_addtag(ptr);
dvander@27	4346	numtags=1;
dvander@27	4347	break;
dvander@27	4348	case '{':
dvander@27	4349	if (numtags>0)
dvander@27	4350	error(1,"-identifier-","-tagname-");
dvander@27	4351	numtags=0;
dvander@27	4352	while (numtags<MAXTAGS) {
dvander@27	4353	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@27	4354	break;
dvander@27	4355	tokeninfo(&val,&ptr);
dvander@27	4356	tags[numtags++]=pc_addtag(ptr);
dvander@27	4357	if (matchtoken('}'))
dvander@27	4358	break;
dvander@27	4359	needtoken(',');
dvander@27	4360	} /* for */
dvander@27	4361	needtoken(':');
dvander@27	4362	tok=tLABEL; /* for outer loop: flag that we have seen a tagname */
dvander@27	4363	break;
dvander@27	4364	case tSYMBOL:
dvander@27	4365	if (argcnt>=sMAXARGS)
dvander@27	4366	error(45); /* too many function arguments */
dvander@27	4367	strcpy(name,ptr); /* save symbol name */
dvander@27	4368	if (name[0]==PUBLIC_CHAR)
dvander@27	4369	error(56,name); /* function arguments cannot be public */
dvander@27	4370	if (numtags==0)
dvander@27	4371	tags[numtags++]=0; /* default tag */
dvander@27	4372	/* Stack layout:
dvander@27	4373	* base + 0*sizeof(cell) == previous "base"
dvander@27	4374	* base + 1*sizeof(cell) == function return address
dvander@27	4375	* base + 2*sizeof(cell) == number of arguments
dvander@27	4376	* base + 3*sizeof(cell) == first argument of the function
dvander@27	4377	* So the offset of each argument is "(argcnt+3) * sizeof(cell)".
dvander@27	4378	*/
dvander@27	4379	doarg(name,ident,(argcnt+3)*sizeof(cell),tags,numtags,fpublic,fconst,chkshadow,&arg);
dvander@338	4380	/* :TODO: fix this so stocks that are func pointers can't have default arguments? */
dvander@338	4381	if ((sym->usage & uPUBLIC) && arg.hasdefault)
dvander@27	4382	error(59,name); /* arguments of a public function may not have a default value */
dvander@27	4383	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4384	/* redimension the argument list, add the entry */
dvander@27	4385	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4386	if (sym->dim.arglist==0)
ds@841	4387	error(123); /* insufficient memory */
dvander@27	4388	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4389	sym->dim.arglist[argcnt]=arg;
dvander@27	4390	} else {
dvander@27	4391	/* check the argument with the earlier definition */
dvander@27	4392	if (argcnt>oldargcnt \|\| !argcompare(&sym->dim.arglist[argcnt],&arg))
dvander@27	4393	error(25); /* function definition does not match prototype */
dvander@27	4394	/* may need to free default array argument and the tag list */
dvander@27	4395	if (arg.ident==iREFARRAY && arg.hasdefault)
dvander@27	4396	free(arg.defvalue.array.data);
dvander@27	4397	else if (arg.ident==iVARIABLE
dvander@286	4398	&& ((arg.hasdefault & uSIZEOF)!=0 \|\| (arg.hasdefault & uTAGOF)!=0) \|\| (arg.hasdefault & uCOUNTOF)!=0)
dvander@27	4399	free(arg.defvalue.size.symname);
dvander@27	4400	free(arg.tags);
dvander@27	4401	} /* if */
dvander@27	4402	argcnt++;
dvander@27	4403	ident=iVARIABLE;
dvander@27	4404	numtags=0;
dvander@27	4405	fconst=FALSE;
dvander@27	4406	break;
dvander@27	4407	case tELLIPS:
dvander@27	4408	if (ident!=iVARIABLE)
dvander@27	4409	error(10); /* illegal function or declaration */
dvander@27	4410	if (numtags==0)
dvander@27	4411	tags[numtags++]=0; /* default tag */
dvander@27	4412	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4413	/* redimension the argument list, add the entry iVARARGS */
dvander@27	4414	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4415	if (sym->dim.arglist==0)
ds@841	4416	error(123); /* insufficient memory */
dvander@27	4417	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4418	sym->dim.arglist[argcnt].ident=iVARARGS;
dvander@27	4419	sym->dim.arglist[argcnt].hasdefault=FALSE;
dvander@27	4420	sym->dim.arglist[argcnt].defvalue.val=0;
dvander@27	4421	sym->dim.arglist[argcnt].defvalue_tag=0;
dvander@27	4422	sym->dim.arglist[argcnt].numtags=numtags;
dvander@27	4423	sym->dim.arglist[argcnt].tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4424	if (sym->dim.arglist[argcnt].tags==NULL)
ds@841	4425	error(123); /* insufficient memory */
dvander@27	4426	memcpy(sym->dim.arglist[argcnt].tags,tags,numtags*sizeof tags[0]);
dvander@27	4427	} else {
dvander@27	4428	if (argcnt>oldargcnt \|\| sym->dim.arglist[argcnt].ident!=iVARARGS)
dvander@27	4429	error(25); /* function definition does not match prototype */
dvander@27	4430	} /* if */
dvander@27	4431	argcnt++;
dvander@27	4432	break;
dvander@27	4433	default:
dvander@27	4434	error(10); /* illegal function or declaration */
dvander@27	4435	} /* switch */
dvander@27	4436	} while (tok=='&' \|\| tok==tLABEL \|\| tok==tCONST
dvander@27	4437	\|\| tok!=tELLIPS && matchtoken(',')); /* more? */
dvander@27	4438	/* if the next token is not ",", it should be ")" */
dvander@27	4439	needtoken(')');
dvander@27	4440	} /* if */
dvander@27	4441	/* resolve any "sizeof" arguments (now that all arguments are known) */
dvander@27	4442	assert(sym->dim.arglist!=NULL);
dvander@27	4443	arglist=sym->dim.arglist;
dvander@27	4444	for (idx=0; idx<argcnt && arglist[idx].ident!=0; idx++) {
dvander@286	4445	if ((arglist[idx].hasdefault & uSIZEOF)!=0
dvander@286	4446	\|\| (arglist[idx].hasdefault & uTAGOF)!=0
dvander@286	4447	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0) {
dvander@27	4448	int altidx;
dvander@27	4449	/* Find the argument with the name mentioned after the "sizeof". Note
dvander@27	4450	* that we cannot use findloc here because we need the arginfo struct,
dvander@27	4451	* not the symbol.
dvander@27	4452	*/
dvander@27	4453	ptr=arglist[idx].defvalue.size.symname;
dvander@27	4454	assert(ptr!=NULL);
dvander@27	4455	for (altidx=0; altidx<argcnt && strcmp(ptr,arglist[altidx].name)!=0; altidx++)
dvander@27	4456	/* nothing */;
dvander@27	4457	if (altidx>=argcnt) {
dvander@27	4458	error(17,ptr); /* undefined symbol */
dvander@27	4459	} else {
dvander@27	4460	assert(arglist[idx].defvalue.size.symname!=NULL);
dvander@27	4461	/* check the level against the number of dimensions */
dvander@27	4462	if (arglist[idx].defvalue.size.level>0
dvander@27	4463	&& arglist[idx].defvalue.size.level>=arglist[altidx].numdim)
dvander@27	4464	error(28,arglist[idx].name); /* invalid subscript */
dvander@27	4465	/* check the type of the argument whose size to take; for a iVARIABLE
dvander@27	4466	* or a iREFERENCE, this is always 1 (so the code is redundant)
dvander@27	4467	*/
dvander@27	4468	assert(arglist[altidx].ident!=iVARARGS);
dvander@286	4469	if (arglist[altidx].ident!=iREFARRAY
dvander@286	4470	&& (((arglist[idx].hasdefault & uSIZEOF)!=0)
dvander@286	4471	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0)) {
dvander@27	4472	if ((arglist[idx].hasdefault & uTAGOF)!=0) {
dvander@27	4473	error(81,arglist[idx].name); /* cannot take "tagof" an indexed array */
dvander@27	4474	} else {
dvander@27	4475	assert(arglist[altidx].ident==iVARIABLE \|\| arglist[altidx].ident==iREFERENCE);
dvander@27	4476	error(223,ptr); /* redundant sizeof */
dvander@27	4477	} /* if */
dvander@27	4478	} /* if */
dvander@27	4479	} /* if */
dvander@27	4480	} /* if */
dvander@27	4481	} /* for */
dvander@27	4482
dvander@27	4483	sym->usage\|=uPROTOTYPED;
dvander@27	4484	errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/
dvander@27	4485	return argcnt;
dvander@27	4486	}
dvander@27	4487
dvander@27	4488	/* doarg - declare one argument type
dvander@27	4489	*
dvander@27	4490	* this routine is called from "declargs()" and adds an entry in the local
dvander@27	4491	* symbol table for one argument.
dvander@27	4492	*
dvander@27	4493	* "fpublic" indicates whether the function for this argument list is public.
dvander@27	4494	* The arguments themselves are never public.
dvander@27	4495	*/
dvander@27	4496	static void doarg(char *name,int ident,int offset,int tags[],int numtags,
dvander@27	4497	int fpublic,int fconst,int chkshadow,arginfo *arg)
dvander@27	4498	{
dvander@27	4499	symbol *argsym;
dvander@27	4500	constvalue *enumroot;
dvander@27	4501	cell size;
dvander@286	4502	int slength=0;
dvander@27	4503
dvander@27	4504	strcpy(arg->name,name);
dvander@27	4505	arg->hasdefault=FALSE; /* preset (most common case) */
dvander@27	4506	arg->defvalue.val=0; /* clear */
dvander@27	4507	arg->defvalue_tag=0;
dvander@27	4508	arg->numdim=0;
dvander@27	4509	if (matchtoken('[')) {
dvander@27	4510	if (ident==iREFERENCE)
dvander@27	4511	error(67,name); /* illegal declaration ("&name[]" is unsupported) */
dvander@27	4512	do {
dvander@27	4513	if (arg->numdim == sDIMEN_MAX) {
dvander@27	4514	error(53); /* exceeding maximum number of dimensions */
dvander@27	4515	return;
dvander@27	4516	} /* if */
dvander@27	4517	size=needsub(&arg->idxtag[arg->numdim],&enumroot);/* may be zero here, it is a pointer anyway */
dvander@27	4518	#if INT_MAX < LONG_MAX
dvander@27	4519	if (size > INT_MAX)
ds@841	4520	error(125); /* overflow, exceeding capacity */
dvander@27	4521	#endif
dvander@27	4522	arg->dim[arg->numdim]=(int)size;
dvander@27	4523	arg->numdim+=1;
dvander@27	4524	} while (matchtoken('['));
dvander@27	4525	ident=iREFARRAY; /* "reference to array" (is a pointer) */
dvander@286	4526	if (checktag(tags, numtags, pc_tag_string)) {
dvander@286	4527	slength = arg->dim[arg->numdim - 1];
dvander@151	4528	arg->dim[arg->numdim - 1] = (size + sizeof(cell) - 1) / sizeof(cell);
dvander@286	4529	}
dvander@27	4530	if (matchtoken('=')) {
dvander@27	4531	assert(litidx==0); /* at the start of a function, this is reset */
dvander@27	4532	assert(numtags>0);
dvander@1044	4533	/* Check if there is a symbol */
dvander@1044	4534	if (matchtoken(tSYMBOL)) {
dvander@1044	4535	symbol *sym;
dvander@1044	4536	char *name;
dvander@1044	4537	cell val;
dvander@1044	4538	tokeninfo(&val,&name);
dvander@1044	4539	if ((sym=findglb(name, sGLOBAL)) == NULL) {
dvander@1044	4540	error(17, name); /* undefined symbol */
dvander@1044	4541	} else {
dvander@1044	4542	arg->hasdefault=TRUE; /* argument as a default value */
dvander@1044	4543	memset(&arg->defvalue, 0, sizeof(arg->defvalue));
dvander@1044	4544	arg->defvalue.array.data=NULL;
dvander@1044	4545	arg->defvalue.array.addr=sym->addr;
dvander@1044	4546	arg->defvalue_tag=sym->tag;
dvander@1044	4547	if (sc_status==statWRITE && (sym->usage & uREAD)==0) {
dvander@1044	4548	markusage(sym, uREAD);
dvander@1044	4549	}
dvander@1044	4550	}
dvander@1044	4551	} else {
dvander@1045	4552	initials2(ident,tags[0],&size,arg->dim,arg->numdim,enumroot, 1, 0);
dvander@1044	4553	assert(size>=litidx);
dvander@1044	4554	/* allocate memory to hold the initial values */
dvander@1044	4555	arg->defvalue.array.data=(cell )malloc(litidxsizeof(cell));
dvander@1044	4556	if (arg->defvalue.array.data!=NULL) {
dvander@1044	4557	int i;
dvander@1044	4558	memcpy(arg->defvalue.array.data,litq,litidx*sizeof(cell));
dvander@1044	4559	arg->hasdefault=TRUE; /* argument has default value */
dvander@1044	4560	arg->defvalue.array.size=litidx;
dvander@1044	4561	arg->defvalue.array.addr=-1;
dvander@1044	4562	/* calulate size to reserve on the heap */
dvander@1044	4563	arg->defvalue.array.arraysize=1;
dvander@1044	4564	for (i=0; i<arg->numdim; i++)
dvander@1044	4565	arg->defvalue.array.arraysize*=arg->dim[i];
dvander@1044	4566	if (arg->defvalue.array.arraysize < arg->defvalue.array.size)
dvander@1044	4567	arg->defvalue.array.arraysize = arg->defvalue.array.size;
dvander@1044	4568	} /* if */
dvander@1044	4569	litidx=0; /* reset */
dvander@1044	4570	}
dvander@27	4571	} /* if */
dvander@27	4572	} else {
dvander@27	4573	if (matchtoken('=')) {
dvander@27	4574	unsigned char size_tag_token;
dvander@27	4575	assert(ident==iVARIABLE \|\| ident==iREFERENCE);
dvander@27	4576	arg->hasdefault=TRUE; /* argument has a default value */
dvander@27	4577	size_tag_token=(unsigned char)(matchtoken(tSIZEOF) ? uSIZEOF : 0);
dvander@27	4578	if (size_tag_token==0)
dvander@27	4579	size_tag_token=(unsigned char)(matchtoken(tTAGOF) ? uTAGOF : 0);
dvander@286	4580	if (size_tag_token==0)
dvander@286	4581	size_tag_token=(unsigned char)(matchtoken(tCELLSOF) ? uCOUNTOF : 0);
dvander@27	4582	if (size_tag_token!=0) {
dvander@27	4583	int paranthese;
dvander@27	4584	if (ident==iREFERENCE)
dvander@27	4585	error(66,name); /* argument may not be a reference */
dvander@27	4586	paranthese=0;
dvander@27	4587	while (matchtoken('('))
dvander@27	4588	paranthese++;
dvander@27	4589	if (needtoken(tSYMBOL)) {
dvander@27	4590	/* save the name of the argument whose size id to take */
dvander@27	4591	char *name;
dvander@27	4592	cell val;
dvander@27	4593	tokeninfo(&val,&name);
dvander@27	4594	if ((arg->defvalue.size.symname=duplicatestring(name)) == NULL)
ds@841	4595	error(123); /* insufficient memory */
dvander@27	4596	arg->defvalue.size.level=0;
dvander@286	4597	if (size_tag_token==uSIZEOF \|\| size_tag_token==uCOUNTOF) {
dvander@27	4598	while (matchtoken('[')) {
dvander@27	4599	arg->defvalue.size.level+=(short)1;
dvander@27	4600	needtoken(']');
dvander@27	4601	} /* while */
dvander@27	4602	} /* if */
dvander@27	4603	if (ident==iVARIABLE) /* make sure we set this only if not a reference */
dvander@27	4604	arg->hasdefault \|= size_tag_token; /* uSIZEOF or uTAGOF */
dvander@27	4605	} /* if */
dvander@27	4606	while (paranthese--)
dvander@27	4607	needtoken(')');
dvander@27	4608	} else {
dvander@27	4609	constexpr(&arg->defvalue.val,&arg->defvalue_tag,NULL);
dvander@27	4610	assert(numtags>0);
dvander@27	4611	if (!matchtag(tags[0],arg->defvalue_tag,TRUE))
dvander@27	4612	error(213); /* tagname mismatch */
dvander@27	4613	} /* if */
dvander@27	4614	} /* if */
dvander@27	4615	} /* if */
dvander@27	4616	arg->ident=(char)ident;
dvander@27	4617	arg->usage=(char)(fconst ? uCONST : 0);
dvander@27	4618	arg->numtags=numtags;
dvander@27	4619	arg->tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4620	if (arg->tags==NULL)
ds@841	4621	error(123); /* insufficient memory */
dvander@27	4622	memcpy(arg->tags,tags,numtags*sizeof tags[0]);
dvander@27	4623	argsym=findloc(name);
dvander@27	4624	if (argsym!=NULL) {
dvander@27	4625	error(21,name); /* symbol already defined */
dvander@27	4626	} else {
dvander@27	4627	if (chkshadow && (argsym=findglb(name,sSTATEVAR))!=NULL && argsym->ident!=iFUNCTN)
dvander@27	4628	error(219,name); /* variable shadows another symbol */
dvander@27	4629	/* add details of type and address */
dvander@27	4630	assert(numtags>0);
dvander@286	4631	argsym=addvariable2(name,offset,ident,sLOCAL,tags[0],
dvander@286	4632	arg->dim,arg->numdim,arg->idxtag,slength);
dvander@27	4633	argsym->compound=0;
dvander@27	4634	if (ident==iREFERENCE)
dvander@27	4635	argsym->usage\|=uREAD; /* because references are passed back */
dvander@27	4636	if (fpublic)
dvander@27	4637	argsym->usage\|=uREAD; /* arguments of public functions are always "used" */
dvander@27	4638	if (fconst)
dvander@27	4639	argsym->usage\|=uCONST;
dvander@27	4640	} /* if */
dvander@27	4641	}
dvander@27	4642
dvander@27	4643	static int count_referrers(symbol *entry)
dvander@27	4644	{
dvander@27	4645	int i,count;
dvander@27	4646
dvander@27	4647	count=0;
dvander@27	4648	for (i=0; i<entry->numrefers; i++)
dvander@27	4649	if (entry->refer[i]!=NULL)
dvander@27	4650	count++;
dvander@27	4651	return count;
dvander@27	4652	}
dvander@27	4653
dvander@27	4654	#if !defined SC_LIGHT
dvander@27	4655	static int find_xmltag(char source,char xmltag,char xmlparam,char xmlvalue,
dvander@27	4656	char *outer_start,int outer_length,
dvander@27	4657	char *inner_start,int inner_length)
dvander@27	4658	{
dvander@27	4659	char ptr,inner_end;
dvander@27	4660	int xmltag_len,xmlparam_len,xmlvalue_len;
dvander@27	4661	int match;
dvander@27	4662
dvander@27	4663	assert(source!=NULL);
dvander@27	4664	assert(xmltag!=NULL);
dvander@27	4665	assert(outer_start!=NULL);
dvander@27	4666	assert(outer_length!=NULL);
dvander@27	4667	assert(inner_start!=NULL);
dvander@27	4668	assert(inner_length!=NULL);
dvander@27	4669
dvander@27	4670	/* both NULL or both non-NULL */
dvander@27	4671	assert(xmlvalue!=NULL && xmlparam!=NULL \|\| xmlvalue==NULL && xmlparam==NULL);
dvander@27	4672
dvander@27	4673	xmltag_len=strlen(xmltag);
dvander@27	4674	xmlparam_len= (xmlparam!=NULL) ? strlen(xmlparam) : 0;
dvander@27	4675	xmlvalue_len= (xmlvalue!=NULL) ? strlen(xmlvalue) : 0;
dvander@27	4676	ptr=source;
dvander@27	4677	/* find an opening '<' */
dvander@27	4678	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4679	outer_start=ptr; / be optimistic... */
dvander@27	4680	match=FALSE; /* ...and pessimistic at the same time */
dvander@27	4681	ptr++; /* skip '<' */
dvander@27	4682	while (ptr!='\0' && ptr<=' ')
dvander@27	4683	ptr++; /* skip white space */
dvander@27	4684	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4685	/* xml tag found, optionally check the parameter */
dvander@27	4686	ptr+=xmltag_len;
dvander@27	4687	while (ptr!='\0' && ptr<=' ')
dvander@27	4688	ptr++; /* skip white space */
dvander@27	4689	if (xmlparam!=NULL) {
dvander@27	4690	if (strncmp(ptr,xmlparam,xmlparam_len)==0 && ((ptr+xmlparam_len)<=' ' \|\| (ptr+xmlparam_len)=='=')) {
dvander@27	4691	ptr+=xmlparam_len;
dvander@27	4692	while (ptr!='\0' && ptr<=' ')
dvander@27	4693	ptr++; /* skip white space */
dvander@27	4694	if (*ptr=='=') {
dvander@27	4695	ptr++; /* skip '=' */
dvander@27	4696	while (ptr!='\0' && ptr<=' ')
dvander@27	4697	ptr++; /* skip white space */
dvander@27	4698	if (ptr=='"' \|\| ptr=='\'')
dvander@27	4699	ptr++; /* skip " or ' */
dvander@27	4700	assert(xmlvalue!=NULL);
dvander@27	4701	if (strncmp(ptr,xmlvalue,xmlvalue_len)==0
dvander@27	4702	&& (*(ptr+xmlvalue_len)<=' '
dvander@27	4703	\|\| *(ptr+xmlvalue_len)=='>'
dvander@27	4704	\|\| *(ptr+xmlvalue_len)=='"'
dvander@27	4705	\|\| *(ptr+xmlvalue_len)=='\''))
dvander@27	4706	match=TRUE; /* found it */
dvander@27	4707	} /* if */
dvander@27	4708	} /* if */
dvander@27	4709	} else {
dvander@27	4710	match=TRUE; /* don't check the parameter */
dvander@27	4711	} /* if */
dvander@27	4712	} /* if */
dvander@27	4713	if (match) {
dvander@27	4714	/* now find the end of the opening tag */
dvander@27	4715	while (ptr!='\0' && ptr!='>')
dvander@27	4716	ptr++;
dvander@27	4717	if (*ptr=='>')
dvander@27	4718	ptr++;
dvander@27	4719	while (ptr!='\0' && ptr<=' ')
dvander@27	4720	ptr++; /* skip white space */
dvander@27	4721	*inner_start=ptr;
dvander@27	4722	/* find the start of the closing tag (assume no nesting) */
dvander@27	4723	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4724	inner_end=ptr;
dvander@27	4725	ptr++; /* skip '<' */
dvander@27	4726	while (ptr!='\0' && ptr<=' ')
dvander@27	4727	ptr++; /* skip white space */
dvander@27	4728	if (*ptr=='/') {
dvander@27	4729	ptr++; /* skip / */
dvander@27	4730	while (ptr!='\0' && ptr<=' ')
dvander@27	4731	ptr++; /* skip white space */
dvander@27	4732	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4733	/* find the end of the closing tag */
dvander@27	4734	while (ptr!='\0' && ptr!='>')
dvander@27	4735	ptr++;
dvander@27	4736	if (*ptr=='>')
dvander@27	4737	ptr++;
dvander@27	4738	/* set the lengths of the inner and outer segment */
dvander@27	4739	assert(*inner_start!=NULL);
dvander@27	4740	inner_length=(int)(inner_end-inner_start);
dvander@27	4741	assert(*outer_start!=NULL);
dvander@27	4742	outer_length=(int)(ptr-outer_start);
dvander@27	4743	break; /* break out of the loop */
dvander@27	4744	} /* if */
dvander@27	4745	} /* if */
dvander@27	4746	} /* while */
dvander@27	4747	return TRUE;
dvander@27	4748	} /* if */
dvander@27	4749	} /* while */
dvander@27	4750	return FALSE; /* not found */
dvander@27	4751	}
dvander@27	4752
dvander@27	4753	static char xmlencode(char dest,char *source)
dvander@27	4754	{
dvander@27	4755	char temp[2sNAMEMAX+20],ptr;
dvander@27	4756
dvander@27	4757	/* replace < by < and such; normally, such a symbol occurs at most once in
dvander@27	4758	* a symbol name (e.g. "operator<")
dvander@27	4759	*/
dvander@27	4760	ptr=temp;
dvander@27	4761	while (*source!='\0') {
dvander@27	4762	switch (*source) {
dvander@27	4763	case '<':
dvander@27	4764	strcpy(ptr,"<");
dvander@27	4765	ptr+=4;
dvander@27	4766	break;
dvander@27	4767	case '>':
dvander@27	4768	strcpy(ptr,">");
dvander@27	4769	ptr+=4;
dvander@27	4770	break;
dvander@27	4771	case '&':
dvander@27	4772	strcpy(ptr,"&");
dvander@27	4773	ptr+=5;
dvander@27	4774	break;
dvander@27	4775	default:
dvander@27	4776	ptr++=source;
dvander@27	4777	} /* switch */
dvander@27	4778	source++;
dvander@27	4779	} /* while */
dvander@27	4780	*ptr='\0';
dvander@27	4781	strcpy(dest,temp);
dvander@27	4782	return dest;
dvander@27	4783	}
dvander@27	4784
dvander@27	4785	static void make_report(symbol root,FILE log,char *sourcefile)
dvander@27	4786	{
dvander@27	4787	char symname[_MAX_PATH];
dvander@27	4788	int i,arg;
dvander@27	4789	symbol sym,ref;
dvander@27	4790	constvalue *tagsym;
dvander@27	4791	constvalue *enumroot;
dvander@27	4792	char *ptr;
dvander@27	4793
dvander@27	4794	/* adapt the installation directory */
dvander@27	4795	strcpy(symname,sc_rootpath);
dvander@27	4796	#if DIRSEP_CHAR=='\\'
dvander@27	4797	while ((ptr=strchr(symname,':'))!=NULL)
dvander@27	4798	*ptr='\|';
dvander@27	4799	while ((ptr=strchr(symname,DIRSEP_CHAR))!=NULL)
dvander@27	4800	*ptr='/';
dvander@27	4801	#endif
dvander@27	4802
dvander@27	4803	/* the XML header */
dvander@27	4804	fprintf(log,"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
dvander@27	4805	fprintf(log,"<?xml-stylesheet href=\"file:///%s/xml/pawndoc.xsl\" type=\"text/xsl\"?>\n",symname);
dvander@27	4806	fprintf(log,"<doc source=\"%s\">\n",sourcefile);
dvander@27	4807	ptr=strrchr(sourcefile,DIRSEP_CHAR);
dvander@27	4808	if (ptr!=NULL)
dvander@27	4809	ptr++;
dvander@27	4810	else
dvander@27	4811	ptr=sourcefile;
dvander@27	4812	fprintf(log,"\t<assembly>\n\t\t<name>%s</name>\n\t</assembly>\n",ptr);
dvander@27	4813
dvander@27	4814	/* attach the global documentation, if any */
dvander@27	4815	if (sc_documentation!=NULL) {
dvander@27	4816	fprintf(log,"\n\t<!-- general -->\n");
dvander@27	4817	fprintf(log,"\t<general>\n\t\t");
dvander@27	4818	fputs(sc_documentation,log);
dvander@27	4819	fprintf(log,"\n\t</general>\n\n");
dvander@27	4820	} /* if */
dvander@27	4821
dvander@27	4822	/* use multiple passes to print constants variables and functions in
dvander@27	4823	* separate sections
dvander@27	4824	*/
dvander@27	4825	fprintf(log,"\t<members>\n");
dvander@27	4826
dvander@27	4827	fprintf(log,"\n\t\t<!-- enumerations -->\n");
dvander@27	4828	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4829	if (sym->parent!=NULL)
dvander@27	4830	continue; /* hierarchical data type */
dvander@27	4831	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4832	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4833	if (sym->ident!=iCONSTEXPR \|\| (sym->usage & uENUMROOT)==0)
dvander@27	4834	continue;
dvander@27	4835	if ((sym->usage & uREAD)==0)
dvander@27	4836	continue;
dvander@27	4837	fprintf(log,"\t\t<member name=\"T:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4838	if (sym->tag!=0) {
dvander@27	4839	tagsym=find_tag_byval(sym->tag);
dvander@27	4840	assert(tagsym!=NULL);
dvander@27	4841	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4842	} /* if */
dvander@27	4843	/* browse through all fields */
dvander@27	4844	if ((enumroot=sym->dim.enumlist)!=NULL) {
dvander@27	4845	enumroot=enumroot->next; /* skip root */
dvander@27	4846	while (enumroot!=NULL) {
dvander@27	4847	fprintf(log,"\t\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,enumroot->name),enumroot->value);
dvander@27	4848	/* find the constant with this name and get the tag */
dvander@27	4849	ref=findglb(enumroot->name,sGLOBAL);
dvander@27	4850	if (ref!=NULL) {
dvander@27	4851	if (ref->x.tags.index!=0) {
dvander@27	4852	tagsym=find_tag_byval(ref->x.tags.index);
dvander@27	4853	assert(tagsym!=NULL);
dvander@27	4854	fprintf(log,"\t\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4855	} /* if */
dvander@27	4856	if (ref->dim.array.length!=1)
dvander@27	4857	fprintf(log,"\t\t\t\t<size value=\"%ld\"/>\n",(long)ref->dim.array.length);
dvander@27	4858	} /* if */
dvander@27	4859	fprintf(log,"\t\t\t</member>\n");
dvander@27	4860	enumroot=enumroot->next;
dvander@27	4861	} /* while */
dvander@27	4862	} /* if */
dvander@27	4863	assert(sym->refer!=NULL);
dvander@27	4864	for (i=0; i<sym->numrefers; i++) {
dvander@27	4865	if ((ref=sym->refer[i])!=NULL)
dvander@27	4866	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4867	} /* for */
dvander@27	4868	if (sym->documentation!=NULL)
dvander@27	4869	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4870	fprintf(log,"\t\t</member>\n");
dvander@27	4871	} /* for */
dvander@27	4872
dvander@27	4873	fprintf(log,"\n\t\t<!-- constants -->\n");
dvander@27	4874	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4875	if (sym->parent!=NULL)
dvander@27	4876	continue; /* hierarchical data type */
dvander@27	4877	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4878	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4879	if (sym->ident!=iCONSTEXPR)
dvander@27	4880	continue;
dvander@27	4881	if ((sym->usage & uREAD)==0 \|\| (sym->usage & (uENUMFIELD \| uENUMROOT))!=0)
dvander@27	4882	continue;
dvander@27	4883	fprintf(log,"\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4884	if (sym->tag!=0) {
dvander@27	4885	tagsym=find_tag_byval(sym->tag);
dvander@27	4886	assert(tagsym!=NULL);
dvander@27	4887	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4888	} /* if */
dvander@27	4889	assert(sym->refer!=NULL);
dvander@27	4890	for (i=0; i<sym->numrefers; i++) {
dvander@27	4891	if ((ref=sym->refer[i])!=NULL)
dvander@27	4892	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4893	} /* for */
dvander@27	4894	if (sym->documentation!=NULL)
dvander@27	4895	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4896	fprintf(log,"\t\t</member>\n");
dvander@27	4897	} /* for */
dvander@27	4898
dvander@27	4899	fprintf(log,"\n\t\t<!-- variables -->\n");
dvander@27	4900	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4901	if (sym->parent!=NULL)
dvander@27	4902	continue; /* hierarchical data type */
dvander@27	4903	if (sym->ident!=iVARIABLE && sym->ident!=iARRAY)
dvander@27	4904	continue;
dvander@27	4905	fprintf(log,"\t\t<member name=\"F:%s\">\n",funcdisplayname(symname,sym->name));
dvander@27	4906	if (sym->tag!=0) {
dvander@27	4907	tagsym=find_tag_byval(sym->tag);
dvander@27	4908	assert(tagsym!=NULL);
dvander@27	4909	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4910	} /* if */
dvander@27	4911	assert(sym->refer!=NULL);
dvander@27	4912	if ((sym->usage & uPUBLIC)!=0)
dvander@27	4913	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	4914	for (i=0; i<sym->numrefers; i++) {
dvander@27	4915	if ((ref=sym->refer[i])!=NULL)
dvander@27	4916	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4917	} /* for */
dvander@27	4918	if (sym->documentation!=NULL)
dvander@27	4919	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4920	fprintf(log,"\t\t</member>\n");
dvander@27	4921	} /* for */
dvander@27	4922
dvander@27	4923	fprintf(log,"\n\t\t<!-- functions -->\n");
dvander@27	4924	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4925	if (sym->parent!=NULL)
dvander@27	4926	continue; /* hierarchical data type */
dvander@27	4927	if (sym->ident!=iFUNCTN)
dvander@27	4928	continue;
dvander@27	4929	if ((sym->usage & (uREAD \| uNATIVE))==uNATIVE)
dvander@27	4930	continue; /* unused native function */
dvander@27	4931	funcdisplayname(symname,sym->name);
dvander@27	4932	xmlencode(symname,symname);
dvander@27	4933	fprintf(log,"\t\t<member name=\"M:%s\" syntax=\"%s(",symname,symname);
dvander@27	4934	/* print only the names of the parameters between the parentheses */
dvander@27	4935	assert(sym->dim.arglist!=NULL);
dvander@27	4936	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	4937	int dim;
dvander@27	4938	if (arg>0)
dvander@27	4939	fprintf(log,", ");
dvander@27	4940	switch (sym->dim.arglist[arg].ident) {
dvander@27	4941	case iVARIABLE:
dvander@27	4942	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	4943	break;
dvander@27	4944	case iREFERENCE:
dvander@27	4945	fprintf(log,"&%s",sym->dim.arglist[arg].name);
dvander@27	4946	break;
dvander@27	4947	case iREFARRAY:
dvander@27	4948	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	4949	for (dim=0; dim<sym->dim.arglist[arg].numdim;dim++)
dvander@27	4950	fprintf(log,"[]");
dvander@27	4951	break;
dvander@27	4952	case iVARARGS:
dvander@27	4953	fprintf(log,"...");
dvander@27	4954	break;
dvander@27	4955	} /* switch */
dvander@27	4956	} /* for */
dvander@27	4957	/* ??? should also print an "array return" size */
dvander@27	4958	fprintf(log,")\">\n");
dvander@27	4959	if (sym->tag!=0) {
dvander@27	4960	tagsym=find_tag_byval(sym->tag);
dvander@27	4961	assert(tagsym!=NULL);
dvander@27	4962	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4963	} /* if */
dvander@27	4964	/* check whether this function is called from the outside */
dvander@27	4965	if ((sym->usage & uNATIVE)!=0)
dvander@27	4966	fprintf(log,"\t\t\t<attribute name=\"native\"/>\n");
dvander@27	4967	if ((sym->usage & uPUBLIC)!=0)
dvander@27	4968	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	4969	if (strcmp(sym->name,uMAINFUNC)==0 \|\| strcmp(sym->name,uENTRYFUNC)==0)
dvander@27	4970	fprintf(log,"\t\t\t<attribute name=\"entry\"/>\n");
dvander@27	4971	if ((sym->usage & uNATIVE)==0)
dvander@27	4972	fprintf(log,"\t\t\t<stacksize value=\"%ld\"/>\n",(long)sym->x.stacksize);
dvander@27	4973	if (sym->states!=NULL) {
dvander@27	4974	constvalue *stlist=sym->states->next;
dvander@27	4975	assert(stlist!=NULL); /* there should be at least one state item */
dvander@27	4976	while (stlist!=NULL && stlist->index==-1)
dvander@27	4977	stlist=stlist->next;
dvander@27	4978	assert(stlist!=NULL); /* state id should be found */
dvander@27	4979	i=state_getfsa(stlist->index);
dvander@27	4980	assert(i>=0); /* automaton 0 exists */
dvander@27	4981	stlist=automaton_findid(i);
dvander@27	4982	assert(stlist!=NULL); /* automaton should be found */
dvander@27	4983	fprintf(log,"\t\t\t<automaton name=\"%s\"/>\n", strlen(stlist->name)>0 ? stlist->name : "(anonymous)");
dvander@27	4984	//??? dump state decision table
dvander@27	4985	} /* if */
dvander@27	4986	assert(sym->refer!=NULL);
dvander@27	4987	for (i=0; i<sym->numrefers; i++)
dvander@27	4988	if ((ref=sym->refer[i])!=NULL)
dvander@27	4989	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4990	/* print all symbols that are required for this function to compile */
dvander@27	4991	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	4992	if (ref==sym)
dvander@27	4993	continue;
dvander@27	4994	for (i=0; i<ref->numrefers; i++)
dvander@27	4995	if (ref->refer[i]==sym)
dvander@27	4996	fprintf(log,"\t\t\t<dependency name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4997	} /* for */
dvander@27	4998	/* print parameter list, with tag & const information, plus descriptions */
dvander@27	4999	assert(sym->dim.arglist!=NULL);
dvander@27	5000	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	5001	int dim,paraminfo;
dvander@27	5002	char outer_start,inner_start;
dvander@27	5003	int outer_length,inner_length;
dvander@27	5004	if (sym->dim.arglist[arg].ident==iVARARGS)
dvander@27	5005	fprintf(log,"\t\t\t<param name=\"...\">\n");
dvander@27	5006	else
dvander@27	5007	fprintf(log,"\t\t\t<param name=\"%s\">\n",sym->dim.arglist[arg].name);
dvander@27	5008	/* print the tag name(s) for each parameter */
dvander@27	5009	assert(sym->dim.arglist[arg].numtags>0);
dvander@27	5010	assert(sym->dim.arglist[arg].tags!=NULL);
dvander@27	5011	paraminfo=(sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0)
dvander@27	5012	\|\| sym->dim.arglist[arg].ident==iREFERENCE
dvander@27	5013	\|\| sym->dim.arglist[arg].ident==iREFARRAY;
dvander@27	5014	if (paraminfo)
dvander@27	5015	fprintf(log,"\t\t\t\t<paraminfo>");
dvander@27	5016	if (sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0) {
dvander@27	5017	assert(paraminfo);
dvander@27	5018	if (sym->dim.arglist[arg].numtags>1)
dvander@27	5019	fprintf(log," {");
dvander@27	5020	for (i=0; i<sym->dim.arglist[arg].numtags; i++) {
dvander@27	5021	if (i>0)
dvander@27	5022	fprintf(log,",");
dvander@27	5023	tagsym=find_tag_byval(sym->dim.arglist[arg].tags[i]);
dvander@27	5024	assert(tagsym!=NULL);
dvander@27	5025	fprintf(log,"%s",tagsym->name);
dvander@27	5026	} /* for */
dvander@27	5027	if (sym->dim.arglist[arg].numtags>1)
dvander@27	5028	fprintf(log,"}");
dvander@27	5029	} /* if */
dvander@27	5030	switch (sym->dim.arglist[arg].ident) {
dvander@27	5031	case iREFERENCE:
dvander@27	5032	fprintf(log," &");
dvander@27	5033	break;
dvander@27	5034	case iREFARRAY:
dvander@27	5035	fprintf(log," ");
dvander@27	5036	for (dim=0; dim<sym->dim.arglist[arg].numdim; dim++) {
dvander@27	5037	if (sym->dim.arglist[arg].dim[dim]==0) {
dvander@27	5038	fprintf(log,"[]");
dvander@27	5039	} else {
dvander@27	5040	//??? find index tag
dvander@27	5041	fprintf(log,"[%d]",sym->dim.arglist[arg].dim[dim]);
dvander@27	5042	} /* if */
dvander@27	5043	} /* for */
dvander@27	5044	break;
dvander@27	5045	} /* switch */
dvander@27	5046	if (paraminfo)
dvander@27	5047	fprintf(log," </paraminfo>\n");
dvander@27	5048	/* print the user description of the parameter (parse through
dvander@27	5049	* sym->documentation)
dvander@27	5050	*/
dvander@27	5051	if (sym->documentation!=NULL
dvander@27	5052	&& find_xmltag(sym->documentation, "param", "name", sym->dim.arglist[arg].name,
dvander@27	5053	&outer_start, &outer_length, &inner_start, &inner_length))
dvander@27	5054	{
dvander@27	5055	char *tail;
dvander@27	5056	fprintf(log,"\t\t\t\t%.*s\n",inner_length,inner_start);
dvander@27	5057	/* delete from documentation string */
dvander@27	5058	tail=outer_start+outer_length;
dvander@27	5059	memmove(outer_start,tail,strlen(tail)+1);
dvander@27	5060	} /* if */
dvander@27	5061	fprintf(log,"\t\t\t</param>\n");
dvander@27	5062	} /* for */
dvander@27	5063	if (sym->documentation!=NULL)
dvander@27	5064	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	5065	fprintf(log,"\t\t</member>\n");
dvander@27	5066	} /* for */
dvander@27	5067
dvander@27	5068	fprintf(log,"\n\t</members>\n");
dvander@27	5069	fprintf(log,"</doc>\n");
dvander@27	5070	}
dvander@27	5071	#endif
dvander@27	5072
dvander@27	5073	/* Every symbol has a referrer list, that contains the functions that use
dvander@27	5074	* the symbol. Now, if function "apple" is accessed by functions "banana" and
dvander@27	5075	* "citron", but neither function "banana" nor "citron" are used by anyone
dvander@27	5076	* else, then, by inference, function "apple" is not used either.
dvander@27	5077	*/
dvander@27	5078	static void reduce_referrers(symbol *root)
dvander@27	5079	{
dvander@27	5080	int i,restart;
dvander@27	5081	symbol sym,ref;
dvander@27	5082
dvander@27	5083	do {
dvander@27	5084	restart=0;
dvander@27	5085	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	5086	if (sym->parent!=NULL)
dvander@27	5087	continue; /* hierarchical data type */
dvander@27	5088	if (sym->ident==iFUNCTN
dvander@27	5089	&& (sym->usage & uNATIVE)==0
dvander@27	5090	&& (sym->usage & uPUBLIC)==0 && strcmp(sym->name,uMAINFUNC)!=0 && strcmp(sym->name,uENTRYFUNC)!=0
dvander@27	5091	&& count_referrers(sym)==0)
dvander@27	5092	{
dvander@27	5093	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	5094	/* find all symbols that are referred by this symbol */
dvander@27	5095	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	5096	if (ref->parent!=NULL)
dvander@27	5097	continue; /* hierarchical data type */
dvander@27	5098	assert(ref->refer!=NULL);
dvander@27	5099	for (i=0; i<ref->numrefers && ref->refer[i]!=sym; i++)
dvander@27	5100	/* nothing */;
dvander@27	5101	if (i<ref->numrefers) {
dvander@27	5102	assert(ref->refer[i]==sym);
dvander@27	5103	ref->refer[i]=NULL;
dvander@27	5104	restart++;
dvander@27	5105	} /* if */
dvander@27	5106	} /* for */
dvander@27	5107	} else if ((sym->ident==iVARIABLE \|\| sym->ident==iARRAY)
dvander@27	5108	&& (sym->usage & uPUBLIC)==0
dvander@27	5109	&& sym->parent==NULL
dvander@27	5110	&& count_referrers(sym)==0)
dvander@27	5111	{
dvander@27	5112	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	5113	} /* if */
dvander@27	5114	} /* for */
dvander@27	5115	/* after removing a symbol, check whether more can be removed */
dvander@27	5116	} while (restart>0);
dvander@27	5117	}
dvander@27	5118
dvander@27	5119	#if !defined SC_LIGHT
dvander@27	5120	static long max_stacksize_recurse(symbol sourcesym,symbol sym,long basesize,int pubfuncparams,int recursion)
dvander@27	5121	{
dvander@27	5122	long size,maxsize;
dvander@27	5123	int i;
dvander@27	5124
dvander@27	5125	assert(sym!=NULL);
dvander@27	5126	assert(sym->ident==iFUNCTN);
dvander@27	5127	assert((sym->usage & uNATIVE)==0);
dvander@27	5128	assert(recursion!=NULL);
dvander@27	5129
dvander@27	5130	maxsize=sym->x.stacksize;
dvander@27	5131	for (i=0; i<sym->numrefers; i++) {
dvander@27	5132	if (sym->refer[i]!=NULL) {
dvander@27	5133	assert(sym->refer[i]->ident==iFUNCTN);
dvander@27	5134	assert((sym->refer[i]->usage & uNATIVE)==0); /* a native function cannot refer to a user-function */
dvander@27	5135	if (sym->refer[i]==sourcesym) { /* recursion detection */
dvander@27	5136	*recursion=1;
dvander@27	5137	break; /* recursion was detected, quit loop */
dvander@27	5138	} /* if */
dvander@27	5139	size=max_stacksize_recurse(sourcesym,sym->refer[i],sym->x.stacksize,pubfuncparams,recursion);
dvander@27	5140	if (maxsize<size)
dvander@27	5141	maxsize=size;
dvander@27	5142	} /* if */
dvander@27	5143	} /* for */
dvander@27	5144
dvander@27	5145	if ((sym->usage & uPUBLIC)!=0) {
dvander@27	5146	/* Find out how many parameters a public function has, then see if this
dvander@27	5147	* is bigger than some maximum
dvander@27	5148	*/
dvander@27	5149	arginfo *arg=sym->dim.arglist;
dvander@27	5150	int count=0;
dvander@27	5151	assert(arg!=0);
dvander@27	5152	while (arg->ident!=0) {
dvander@27	5153	count++;
dvander@27	5154	arg++;
dvander@27	5155	} /* while */
dvander@27	5156	assert(pubfuncparams!=0);
dvander@27	5157	if (count>*pubfuncparams)
dvander@27	5158	*pubfuncparams=count;
dvander@27	5159	} /* if */
dvander@27	5160
dvander@27	5161	return maxsize+basesize;
dvander@27	5162	}
dvander@27	5163
dvander@1164	5164	static symbol *save_symbol;
dvander@1164	5165
dvander@27	5166	static long max_stacksize(symbol root,int recursion)
dvander@27	5167	{
dvander@27	5168	/* Loop over all non-native functions. For each function, loop
dvander@27	5169	* over all of its referrers, accumulating the stack requirements.
dvander@27	5170	* Detect (indirect) recursion with a "mark-and-sweep" algorithm.
dvander@27	5171	* I (mis-)use the "compound" field of the symbol structure for
dvander@27	5172	* the marker, as this field is unused for functions.
dvander@27	5173	*
dvander@27	5174	* Note that the stack is shared with the heap. A host application
dvander@27	5175	* may "eat" cells from the heap as well, through amx_Allot(). The
dvander@27	5176	* stack requirements are thus only an estimate.
dvander@27	5177	*/
dvander@27	5178	long size,maxsize;
dvander@27	5179	int maxparams;
dvander@27	5180	symbol *sym;
dvander@27	5181
dvander@27	5182	assert(root!=NULL);
dvander@27	5183	assert(recursion!=NULL);
dvander@27	5184	#if !defined NDEBUG
dvander@27	5185	for (sym=root->next; sym!=NULL; sym=sym->next)
dvander@27	5186	if (sym->ident==iFUNCTN)
dvander@27	5187	assert(sym->compound==0);
dvander@27	5188	#endif
dvander@27	5189
dvander@27	5190	maxsize=0;
dvander@27	5191	maxparams=0;
dvander@27	5192	recursion=0; / assume no recursion */
dvander@27	5193	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	5194	/* drop out if this is not a user-implemented function */
dvander@27	5195	if (sym->ident!=iFUNCTN \|\| (sym->usage & uNATIVE)!=0)
dvander@27	5196	continue;
dvander@27	5197	/* accumulate stack size for this symbol */
dvander@1164	5198	save_symbol = sym;
dvander@27	5199	size=max_stacksize_recurse(sym,sym,0L,&maxparams,recursion);
dvander@27	5200	assert(size>=0);
dvander@27	5201	if (maxsize<size)
dvander@27	5202	maxsize=size;
dvander@27	5203	} /* for */
dvander@27	5204
dvander@27	5205	maxsize++; /* +1 because a zero cell is always pushed on top
dvander@27	5206	* of the stack to catch stack overwrites */
dvander@27	5207	return maxsize+(maxparams+1);/* +1 because # of parameters is always pushed on entry */
dvander@27	5208	}
dvander@27	5209	#endif
dvander@27	5210
dvander@27	5211	/* testsymbols - test for unused local or global variables
dvander@27	5212	*
dvander@27	5213	* "Public" functions are excluded from the check, since these
dvander@27	5214	* may be exported to other object modules.
dvander@27	5215	* Labels are excluded from the check if the argument 'testlabs'
dvander@27	5216	* is 0. Thus, labels are not tested until the end of the function.
dvander@27	5217	* Constants may also be excluded (convenient for global constants).
dvander@27	5218	*
dvander@27	5219	* When the nesting level drops below "level", the check stops.
dvander@27	5220	*
dvander@27	5221	* The function returns whether there is an "entry" point for the file.
dvander@27	5222	* This flag will only be 1 when browsing the global symbol table.
dvander@27	5223	*/
dvander@27	5224	static int testsymbols(symbol *root,int level,int testlabs,int testconst)
dvander@27	5225	{
dvander@27	5226	char symname[2*sNAMEMAX+16];
dvander@27	5227	int entry=FALSE;
dvander@27	5228
dvander@27	5229	symbol *sym=root->next;
dvander@27	5230	while (sym!=NULL && sym->compound>=level) {
dvander@27	5231	switch (sym->ident) {
dvander@27	5232	case iLABEL:
dvander@27	5233	if (testlabs) {
dvander@27	5234	if ((sym->usage & uDEFINE)==0) {
dvander@27	5235	error(19,sym->name); /* not a label: ... */
dvander@27	5236	} else if ((sym->usage & uREAD)==0) {
dvander@27	5237	errorset(sSETPOS,sym->lnumber);
dvander@27	5238	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5239	} /* if */
dvander@27	5240	} /* if */
dvander@27	5241	break;
dvander@27	5242	case iFUNCTN:
dvander@27	5243	if ((sym->usage & (uDEFINE \| uREAD \| uNATIVE \| uSTOCK \| uPUBLIC))==uDEFINE) {
dvander@27	5244	funcdisplayname(symname,sym->name);
dvander@27	5245	if (strlen(symname)>0)
dvander@27	5246	error(203,symname); /* symbol isn't used ... (and not public/native/stock) */
dvander@27	5247	} /* if */
dvander@27	5248	if ((sym->usage & uPUBLIC)!=0 \|\| strcmp(sym->name,uMAINFUNC)==0)
dvander@27	5249	entry=TRUE; /* there is an entry point */
dvander@27	5250	/* also mark the function to the debug information */
dvander@27	5251	if (((sym->usage & uREAD)!=0 \|\| (sym->usage & uPUBLIC)!=0) && (sym->usage & uNATIVE)==0)
dvander@27	5252	insert_dbgsymbol(sym);
dvander@27	5253	break;
dvander@27	5254	case iCONSTEXPR:
dvander@27	5255	if (testconst && (sym->usage & uREAD)==0) {
dvander@27	5256	errorset(sSETPOS,sym->lnumber);
dvander@27	5257	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5258	} /* if */
dvander@27	5259	break;
dvander@27	5260	default:
dvander@27	5261	/* a variable */
dvander@27	5262	if (sym->parent!=NULL)
dvander@27	5263	break; /* hierarchical data type */
dvander@27	5264	if ((sym->usage & (uWRITTEN \| uREAD \| uSTOCK))==0) {
ds@876	5265	errorset(sSETPOS,sym->lnumber);
ds@876	5266	error(203,sym->name); /* symbol isn't used (and not stock) */
dvander@27	5267	} else if ((sym->usage & (uREAD \| uSTOCK \| uPUBLIC))==0) {
dvander@27	5268	errorset(sSETPOS,sym->lnumber);
dvander@27	5269	error(204,sym->name); /* value assigned to symbol is never used */
dvander@27	5270	#if 0 // ??? not sure whether it is a good idea to force people use "const"
dvander@27	5271	} else if ((sym->usage & (uWRITTEN \| uPUBLIC \| uCONST))==0 && sym->ident==iREFARRAY) {
dvander@27	5272	errorset(sSETPOS,sym->lnumber);
dvander@27	5273	error(214,sym->name); /* make array argument "const" */
dvander@27	5274	#endif
dvander@27	5275	} /* if */
dvander@27	5276	/* also mark the variable (local or global) to the debug information */
dvander@27	5277	if ((sym->usage & (uWRITTEN \| uREAD))!=0 && (sym->usage & uNATIVE)==0)
dvander@27	5278	insert_dbgsymbol(sym);
dvander@27	5279	} /* if */
dvander@27	5280	sym=sym->next;
dvander@27	5281	} /* while */
dvander@27	5282
dvander@27	5283	return entry;
dvander@27	5284	}
dvander@27	5285
dvander@27	5286	static cell calc_array_datasize(symbol sym, cell offset)
dvander@27	5287	{
dvander@27	5288	cell length;
dvander@27	5289
dvander@27	5290	assert(sym!=NULL);
dvander@27	5291	assert(sym->ident==iARRAY \|\| sym->ident==iREFARRAY);
dvander@27	5292	length=sym->dim.array.length;
dvander@27	5293	if (sym->dim.array.level > 0) {
dvander@27	5294	cell sublength=calc_array_datasize(finddepend(sym),offset);
dvander@27	5295	if (offset!=NULL)
dvander@27	5296	offset=length(*offset+sizeof(cell));
dvander@27	5297	if (sublength>0)
dvander@27	5298	length=lengthsublength;
dvander@27	5299	else
dvander@27	5300	length=0;
dvander@27	5301	} else {
dvander@27	5302	if (offset!=NULL)
dvander@27	5303	*offset=0;
dvander@27	5304	} /* if */
dvander@27	5305	return length;
dvander@27	5306	}
dvander@27	5307
dvander@27	5308	static void destructsymbols(symbol *root,int level)
dvander@27	5309	{
dvander@27	5310	cell offset=0;
dvander@27	5311	int savepri=FALSE;
dvander@27	5312	symbol *sym=root->next;
dvander@27	5313	while (sym!=NULL && sym->compound>=level) {
dvander@27	5314	if (sym->ident==iVARIABLE \|\| sym->ident==iARRAY) {
dvander@27	5315	char symbolname[16];
dvander@27	5316	symbol *opsym;
dvander@27	5317	cell elements;
dvander@27	5318	/* check that the '~' operator is defined for this tag */
dvander@27	5319	operator_symname(symbolname,"~",sym->tag,0,1,0);
dvander@27	5320	if ((opsym=findglb(symbolname,sGLOBAL))!=NULL) {
dvander@27	5321	/* save PRI, in case of a return statment */
dvander@27	5322	if (!savepri) {
dvander@27	5323	pushreg(sPRI); /* right-hand operand is in PRI */
dvander@27	5324	savepri=TRUE;
dvander@27	5325	} /* if */
dvander@27	5326	/* if the variable is an array, get the number of elements */
dvander@27	5327	if (sym->ident==iARRAY) {
dvander@27	5328	elements=calc_array_datasize(sym,&offset);
dvander@27	5329	/* "elements" can be zero when the variable is declared like
dvander@27	5330	* new mytag: myvar[2][] = { {1, 2}, {3, 4} }
dvander@27	5331	* one should declare all dimensions!
dvander@27	5332	*/
dvander@27	5333	if (elements==0)
dvander@27	5334	error(46,sym->name); /* array size is unknown */
dvander@27	5335	} else {
dvander@27	5336	elements=1;
dvander@27	5337	offset=0;
dvander@27	5338	} /* if */
dvander@27	5339	pushval(elements);
dvander@27	5340	/* call the '~' operator */
dvander@27	5341	address(sym,sPRI);
dvander@27	5342	addconst(offset); /* add offset to array data to the address */
dvander@27	5343	pushreg(sPRI);
dvander@101	5344	pushval(2 /* sizeof(cell)/ );/* 2 parameters */
dvander@27	5345	assert(opsym->ident==iFUNCTN);
dvander@27	5346	ffcall(opsym,NULL,1);
dvander@27	5347	if (sc_status!=statSKIP)
dvander@27	5348	markusage(opsym,uREAD); /* do not mark as "used" when this call itself is skipped */
dvander@27	5349	if ((opsym->usage & uNATIVE)!=0 && opsym->x.lib!=NULL)
dvander@27	5350	opsym->x.lib->value += 1; /* increment "usage count" of the library */
dvander@27	5351	} /* if */
dvander@27	5352	} /* if */
dvander@27	5353	sym=sym->next;
dvander@27	5354	} /* while */
dvander@27	5355	/* restore PRI, if it was saved */
dvander@27	5356	if (savepri)
dvander@27	5357	popreg(sPRI);
dvander@27	5358	}
dvander@27	5359
dvander@27	5360	static constvalue insert_constval(constvalue prev,constvalue next,const char name,cell val,
dvander@27	5361	int index)
dvander@27	5362	{
dvander@27	5363	constvalue *cur;
dvander@27	5364
dvander@27	5365	if ((cur=(constvalue*)malloc(sizeof(constvalue)))==NULL)
ds@841	5366	error(123); /* insufficient memory (fatal error) */
dvander@27	5367	memset(cur,0,sizeof(constvalue));
dvander@27	5368	if (name!=NULL) {
dvander@27	5369	assert(strlen(name)<sNAMEMAX);
dvander@27	5370	strcpy(cur->name,name);
dvander@27	5371	} /* if */
dvander@27	5372	cur->value=val;
dvander@27	5373	cur->index=index;
dvander@27	5374	cur->next=next;
dvander@27	5375	prev->next=cur;
dvander@27	5376	return cur;
dvander@27	5377	}
dvander@27	5378
dvander@27	5379	SC_FUNC constvalue append_constval(constvalue table,const char *name,cell val,int index)
dvander@27	5380	{
dvander@27	5381	constvalue cur,prev;
dvander@27	5382
dvander@27	5383	/* find the end of the constant table */
dvander@27	5384	for (prev=table, cur=table->next; cur!=NULL; prev=cur, cur=cur->next)
dvander@27	5385	/* nothing */;
dvander@27	5386	return insert_constval(prev,NULL,name,val,index);
dvander@27	5387	}
dvander@27	5388
dvander@27	5389	SC_FUNC constvalue find_constval(constvalue table,char *name,int index)
dvander@27	5390	{
dvander@27	5391	constvalue *ptr = table->next;
dvander@27	5392
dvander@27	5393	while (ptr!=NULL) {
dvander@27	5394	if (strcmp(name,ptr->name)==0 && ptr->index==index)
dvander@27	5395	return ptr;
dvander@27	5396	ptr=ptr->next;
dvander@27	5397	} /* while */
dvander@27	5398	return NULL;
dvander@27	5399	}
dvander@27	5400
dvander@27	5401	static constvalue find_constval_byval(constvalue table,cell val)
dvander@27	5402	{
dvander@27	5403	constvalue *ptr = table->next;
dvander@27	5404
dvander@27	5405	while (ptr!=NULL) {
dvander@27	5406	if (ptr->value==val)
dvander@27	5407	return ptr;
dvander@27	5408	ptr=ptr->next;
dvander@27	5409	} /* while */
dvander@27	5410	return NULL;
dvander@27	5411	}
dvander@27	5412
dvander@27	5413	#if 0 /* never used */
dvander@27	5414	static int delete_constval(constvalue table,char name)
dvander@27	5415	{
dvander@27	5416	constvalue *prev = table;
dvander@27	5417	constvalue *cur = prev->next;
dvander@27	5418
dvander@27	5419	while (cur!=NULL) {
dvander@27	5420	if (strcmp(name,cur->name)==0) {
dvander@27	5421	prev->next=cur->next;
dvander@27	5422	free(cur);
dvander@27	5423	return TRUE;
dvander@27	5424	} /* if */
dvander@27	5425	prev=cur;
dvander@27	5426	cur=cur->next;
dvander@27	5427	} /* while */
dvander@27	5428	return FALSE;
dvander@27	5429	}
dvander@27	5430	#endif
dvander@27	5431
dvander@27	5432	SC_FUNC void delete_consttable(constvalue *table)
dvander@27	5433	{
dvander@27	5434	constvalue cur=table->next, next;
dvander@27	5435
dvander@27	5436	while (cur!=NULL) {
dvander@27	5437	next=cur->next;
dvander@27	5438	free(cur);
dvander@27	5439	cur=next;
dvander@27	5440	} /* while */
dvander@27	5441	memset(table,0,sizeof(constvalue));
dvander@27	5442	}
dvander@27	5443
dvander@27	5444	/* add_constant
dvander@27	5445	*
dvander@27	5446	* Adds a symbol to the symbol table. Returns NULL on failure.
dvander@27	5447	*/
dvander@27	5448	SC_FUNC symbol add_constant(char name,cell val,int vclass,int tag)
dvander@27	5449	{
dvander@27	5450	symbol *sym;
dvander@27	5451
dvander@27	5452	/* Test whether a global or local symbol with the same name exists. Since
dvander@27	5453	* constants are stored in the symbols table, this also finds previously
dvander@27	5454	* defind constants. */
dvander@27	5455	sym=findglb(name,sSTATEVAR);
dvander@27	5456	if (!sym)
dvander@27	5457	sym=findloc(name);
dvander@27	5458	if (sym) {
dvander@27	5459	int redef=0;
dvander@27	5460	if (sym->ident!=iCONSTEXPR)
dvander@27	5461	redef=1; /* redefinition a function/variable to a constant is not allowed */
dvander@27	5462	if ((sym->usage & uENUMFIELD)!=0) {
dvander@27	5463	/* enum field, special case if it has a different tag and the new symbol is also an enum field */
dvander@27	5464	constvalue *tagid;
dvander@27	5465	symbol *tagsym;
dvander@27	5466	if (sym->tag==tag)
dvander@27	5467	redef=1; /* enumeration field is redefined (same tag) */
dvander@27	5468	tagid=find_tag_byval(tag);
dvander@27	5469	if (tagid==NULL) {
dvander@27	5470	redef=1; /* new constant does not have a tag */
dvander@27	5471	} else {
dvander@27	5472	tagsym=findconst(tagid->name,NULL);
dvander@27	5473	if (tagsym==NULL \|\| (tagsym->usage & uENUMROOT)==0)
dvander@27	5474	redef=1; /* new constant is not an enumeration field */
dvander@27	5475	} /* if */
dvander@27	5476	/* in this particular case (enumeration field that is part of a different
dvander@27	5477	* enum, and non-conflicting with plain constants) we want to be able to
dvander@27	5478	* redefine it
dvander@27	5479	*/
dvander@27	5480	if (!redef)
dvander@27	5481	goto redef_enumfield;
dvander@27	5482	} else if (sym->tag!=tag) {
dvander@27	5483	redef=1; /* redefinition of a constant (non-enum) to a different tag is not allowed */
dvander@27	5484	} /* if */
dvander@27	5485	if (redef) {
dvander@27	5486	error(21,name); /* symbol already defined */
dvander@27	5487	return NULL;
dvander@27	5488	} else if (sym->addr!=val) {
dvander@27	5489	error(201,name); /* redefinition of constant (different value) */
dvander@27	5490	sym->addr=val; /* set new value */
dvander@27	5491	} /* if */
dvander@27	5492	/* silently ignore redefinitions of constants with the same value & tag */
dvander@27	5493	return sym;
dvander@27	5494	} /* if */
dvander@27	5495
dvander@27	5496	/* constant doesn't exist yet (or is allowed to be redefined) */
dvander@27	5497	redef_enumfield:
dvander@27	5498	sym=addsym(name,val,iCONSTEXPR,vclass,tag,uDEFINE);
dvander@27	5499	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	5500	if (sc_status == statIDLE)
dvander@27	5501	sym->usage \|= uPREDEF;
dvander@27	5502	return sym;
dvander@27	5503	}
dvander@27	5504
dvander@27	5505	/* statement - The Statement Parser
dvander@27	5506	*
dvander@27	5507	* This routine is called whenever the parser needs to know what statement
dvander@27	5508	* it encounters (i.e. whenever program syntax requires a statement).
dvander@27	5509	*/
dvander@27	5510	static void statement(int *lastindent,int allow_decl)
dvander@27	5511	{
faluco@62	5512	int tok,save;
dvander@27	5513	cell val;
dvander@27	5514	char *st;
dvander@27	5515
dvander@27	5516	if (!freading) {
dvander@27	5517	error(36); /* empty statement */
dvander@27	5518	return;
dvander@27	5519	} /* if */
dvander@27	5520	errorset(sRESET,0);
dvander@27	5521
dvander@27	5522	tok=lex(&val,&st);
dvander@27	5523	if (tok!='{') {
dvander@27	5524	insert_dbgline(fline);
dvander@27	5525	setline(TRUE);
dvander@27	5526	} /* if */
dvander@27	5527	/* lex() has set stmtindent */
dvander@27	5528	if (lastindent!=NULL && tok!=tLABEL) {
dvander@27	5529	if (lastindent>=0 && lastindent!=stmtindent && !indent_nowarn && sc_tabsize>0)
dvander@27	5530	error(217); /* loose indentation */
dvander@27	5531	*lastindent=stmtindent;
dvander@27	5532	indent_nowarn=FALSE; /* if warning was blocked, re-enable it */
dvander@27	5533	} /* if */
dvander@27	5534	switch (tok) {
dvander@27	5535	case 0:
dvander@27	5536	/* nothing */
dvander@27	5537	break;
dvander@27	5538	case tNEW:
dvander@27	5539	if (allow_decl) {
dvander@27	5540	autozero=1;
dvander@27	5541	declloc(FALSE);
dvander@27	5542	lastst=tNEW;
dvander@27	5543	} else {
dvander@27	5544	error(3); /* declaration only valid in a block */
dvander@27	5545	} /* if */
dvander@27	5546	break;
dvander@27	5547	case tDECL:
dvander@27	5548	if (allow_decl) {
dvander@27	5549	autozero=0;
dvander@27	5550	declloc(FALSE);
dvander@27	5551	lastst=tDECL;
dvander@27	5552	} else {
dvander@27	5553	error(3); /* declaration only valid in a block */
dvander@27	5554	} /* if */
dvander@27	5555	break;
dvander@27	5556	case tSTATIC:
dvander@27	5557	if (allow_decl) {
dvander@27	5558	declloc(TRUE);
dvander@27	5559	lastst=tNEW;
dvander@27	5560	} else {
dvander@27	5561	error(3); /* declaration only valid in a block */
dvander@27	5562	} /* if */
dvander@27	5563	break;
dvander@27	5564	case '{':
faluco@62	5565	case tBEGIN:
faluco@62	5566	save=fline;
dvander@27	5567	if (!matchtoken('}')) /* {} is the empty statement */
faluco@62	5568	compound(save==fline,tok);
dvander@27	5569	/* lastst (for "last statement") does not change */
dvander@27	5570	break;
dvander@27	5571	case ';':
dvander@27	5572	error(36); /* empty statement */
dvander@27	5573	break;
dvander@27	5574	case tIF:
faluco@62	5575	lastst=doif();
dvander@27	5576	break;
dvander@27	5577	case tWHILE:
faluco@62	5578	lastst=dowhile();
dvander@27	5579	break;
dvander@27	5580	case tDO:
faluco@62	5581	lastst=dodo();
dvander@27	5582	break;
dvander@27	5583	case tFOR:
faluco@62	5584	lastst=dofor();
dvander@27	5585	break;
dvander@27	5586	case tSWITCH:
dvander@27	5587	doswitch();
dvander@27	5588	lastst=tSWITCH;
dvander@27	5589	break;
dvander@27	5590	case tCASE:
dvander@27	5591	case tDEFAULT:
dvander@27	5592	error(14); /* not in switch */
dvander@27	5593	break;
dvander@27	5594	case tGOTO:
dvander@27	5595	dogoto();
dvander@27	5596	lastst=tGOTO;
dvander@27	5597	break;
dvander@27	5598	case tLABEL:
dvander@27	5599	dolabel();
dvander@27	5600	lastst=tLABEL;
dvander@27	5601	break;
dvander@27	5602	case tRETURN:
dvander@27	5603	doreturn();
dvander@27	5604	lastst=tRETURN;
dvander@27	5605	break;
dvander@27	5606	case tBREAK:
dvander@27	5607	dobreak();
dvander@27	5608	lastst=tBREAK;
dvander@27	5609	break;
dvander@27	5610	case tCONTINUE:
dvander@27	5611	docont();
dvander@27	5612	lastst=tCONTINUE;
dvander@27	5613	break;
dvander@27	5614	case tEXIT:
dvander@27	5615	doexit();
dvander@27	5616	lastst=tEXIT;
dvander@27	5617	break;
dvander@27	5618	case tASSERT:
dvander@27	5619	doassert();
dvander@27	5620	lastst=tASSERT;
dvander@27	5621	break;
dvander@27	5622	case tSLEEP:
dvander@27	5623	dosleep();
dvander@27	5624	lastst=tSLEEP;
dvander@27	5625	break;
dvander@27	5626	case tSTATE:
dvander@27	5627	dostate();
dvander@27	5628	lastst=tSTATE;
dvander@27	5629	break;
dvander@27	5630	case tCONST:
dvander@27	5631	decl_const(sLOCAL);
dvander@27	5632	break;
dvander@27	5633	case tENUM:
dvander@27	5634	decl_enum(sLOCAL);
dvander@27	5635	break;
dvander@27	5636	default: /* non-empty expression */
dvander@27	5637	sc_allowproccall=optproccall;
dvander@27	5638	lexpush(); /* analyze token later */
dvander@27	5639	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE);
dvander@27	5640	needtoken(tTERM);
dvander@27	5641	lastst=tEXPR;
dvander@27	5642	sc_allowproccall=FALSE;
dvander@27	5643	} /* switch */
dvander@27	5644	}
dvander@27	5645
faluco@62	5646	static void compound(int stmt_sameline,int starttok)
dvander@27	5647	{
dvander@27	5648	int indent=-1;
dvander@27	5649	cell save_decl=declared;
dvander@27	5650	int count_stmt=0;
dvander@27	5651	int block_start=fline; /* save line where the compound block started */
faluco@62	5652	int endtok;
dvander@27	5653
dvander@117	5654	pushstacklist();
dvander@118	5655	pushheaplist();
dvander@27	5656	/* if there is more text on this line, we should adjust the statement indent */
dvander@27	5657	if (stmt_sameline) {
dvander@27	5658	int i;
dvander@27	5659	const unsigned char *p=lptr;
dvander@27	5660	/* go back to the opening brace */
faluco@62	5661	while (*p!=starttok) {
dvander@27	5662	assert(p>pline);
dvander@27	5663	p--;
dvander@27	5664	} /* while */
faluco@62	5665	assert(p==starttok); / it should be found */
dvander@27	5666	/* go forward, skipping white-space */
dvander@27	5667	p++;
dvander@27	5668	while (p<=' ' && p!='\0')
dvander@27	5669	p++;
dvander@27	5670	assert(p!='\0'); / a token should be found */
dvander@27	5671	stmtindent=0;
dvander@27	5672	for (i=0; i<(int)(p-pline); i++)
dvander@27	5673	if (pline[i]=='\t' && sc_tabsize>0)
dvander@27	5674	stmtindent += (int)(sc_tabsize - (stmtindent+sc_tabsize) % sc_tabsize);
dvander@27	5675	else
dvander@27	5676	stmtindent++;
dvander@27	5677	} /* if */
dvander@27	5678
faluco@62	5679	endtok=(starttok=='{') ? '}' : tEND;
dvander@27	5680	nestlevel+=1; /* increase compound statement level */
faluco@62	5681	while (matchtoken(endtok)==0){/* repeat until compound statement is closed */
dvander@27	5682	if (!freading){
dvander@27	5683	error(30,block_start); /* compound block not closed at end of file */
dvander@27	5684	break;
dvander@27	5685	} else {
faluco@62	5686	if (count_stmt>0 && (lastst==tRETURN \|\| lastst==tBREAK \|\| lastst==tCONTINUE \|\| lastst==tENDLESS))
dvander@27	5687	error(225); /* unreachable code */
dvander@27	5688	statement(&indent,TRUE); /* do a statement */
dvander@27	5689	count_stmt++;
dvander@27	5690	} /* if */
dvander@27	5691	} /* while */
dvander@27	5692	if (lastst!=tRETURN)
dvander@27	5693	destructsymbols(&loctab,nestlevel);
dvander@117	5694	if (lastst!=tRETURN && lastst!=tGOTO) {
dvander@1472	5695	popheaplist();
dvander@459	5696	popstacklist(1);
dvander@459	5697	} else {
dvander@1472	5698	popheaplist();
dvander@459	5699	popstacklist(0);
dvander@117	5700	}
dvander@27	5701	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	5702	declared=save_decl;
dvander@27	5703	delete_symbols(&loctab,nestlevel,FALSE,TRUE); /* erase local symbols, but
dvander@27	5704	* retain block local labels
dvander@27	5705	* (within the function) */
dvander@27	5706	nestlevel-=1; /* decrease compound statement level */
dvander@27	5707	}
dvander@27	5708
dvander@27	5709	/* doexpr
dvander@27	5710	*
dvander@27	5711	* Global references: stgidx (referred to only)
dvander@27	5712	*/
dvander@27	5713	static int doexpr(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@27	5714	int tag,symbol *symptr,int chkfuncresult)
dvander@27	5715	{
dvander@152	5716	return doexpr2(comma,chkeffect,allowarray,mark_endexpr,tag,symptr,chkfuncresult,NULL);
dvander@152	5717	}
dvander@152	5718
dvander@152	5719	/* doexpr2
dvander@152	5720	*
dvander@152	5721	* Global references: stgidx (referred to only)
dvander@152	5722	*/
dvander@152	5723	static int doexpr2(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@152	5724	int tag,symbol symptr,int chkfuncresult,value lval)
dvander@152	5725	{
dvander@27	5726	int index,ident;
dvander@27	5727	int localstaging=FALSE;
dvander@27	5728	cell val;
dvander@27	5729
dvander@27	5730	if (!staging) {
dvander@27	5731	stgset(TRUE); /* start stage-buffering */
dvander@27	5732	localstaging=TRUE;
dvander@27	5733	assert(stgidx==0);
dvander@27	5734	} /* if */
dvander@27	5735	index=stgidx;
dvander@27	5736	errorset(sEXPRMARK,0);
dvander@27	5737	do {
dvander@27	5738	/* on second round through, mark the end of the previous expression */
dvander@27	5739	if (index!=stgidx)
dvander@27	5740	markexpr(sEXPR,NULL,0);
dvander@27	5741	sideeffect=FALSE;
dvander@152	5742	ident=expression(&val,tag,symptr,chkfuncresult,lval);
dvander@27	5743	if (!allowarray && (ident==iARRAY \|\| ident==iREFARRAY))
dvander@27	5744	error(33,"-unknown-"); /* array must be indexed */
dvander@27	5745	if (chkeffect && !sideeffect)
dvander@27	5746	error(215); /* expression has no effect */
dvander@27	5747	sc_allowproccall=FALSE; /* cannot use "procedure call" syntax anymore */
dvander@27	5748	} while (comma && matchtoken(',')); /* more? */
dvander@27	5749	if (mark_endexpr)
dvander@27	5750	markexpr(sEXPR,NULL,0); /* optionally, mark the end of the expression */
dvander@27	5751	errorset(sEXPRRELEASE,0);
dvander@27	5752	if (localstaging) {
dvander@27	5753	stgout(index);
dvander@27	5754	stgset(FALSE); /* stop staging */
dvander@27	5755	} /* if */
dvander@27	5756	return ident;
dvander@27	5757	}
dvander@27	5758
dvander@27	5759	/* constexpr
dvander@27	5760	*/
dvander@27	5761	SC_FUNC int constexpr(cell val,int tag,symbol **symptr)
dvander@27	5762	{
dvander@27	5763	int ident,index;
dvander@27	5764	cell cidx;
dvander@27	5765
dvander@27	5766	stgset(TRUE); /* start stage-buffering */
dvander@27	5767	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	5768	errorset(sEXPRMARK,0);
dvander@152	5769	ident=expression(val,tag,symptr,FALSE,NULL);
dvander@27	5770	stgdel(index,cidx); /* scratch generated code */
dvander@27	5771	stgset(FALSE); /* stop stage-buffering */
dvander@27	5772	if (ident!=iCONSTEXPR) {
dvander@27	5773	error(8); /* must be constant expression */
dvander@27	5774	if (val!=NULL)
dvander@27	5775	*val=0;
dvander@27	5776	if (tag!=NULL)
dvander@27	5777	*tag=0;
dvander@27	5778	if (symptr!=NULL)
dvander@27	5779	*symptr=NULL;
dvander@27	5780	} /* if */
dvander@27	5781	errorset(sEXPRRELEASE,0);
dvander@27	5782	return (ident==iCONSTEXPR);
dvander@27	5783	}
dvander@27	5784
dvander@27	5785	/* test
dvander@27	5786	*
dvander@27	5787	* In the case a "simple assignment" operator ("=") is used within a test,
dvander@27	5788	* the warning "possibly unintended assignment" is displayed. This routine
dvander@27	5789	* sets the global variable "sc_intest" to true, it is restored upon termination.
ds@1265	5790	* In the case the assignment was intended, use parentheses around the
dvander@27	5791	* expression to avoid the warning; primary() sets "sc_intest" to 0.
dvander@27	5792	*
dvander@27	5793	* Global references: sc_intest (altered, but restored upon termination)
dvander@27	5794	*/
faluco@62	5795	static int test(int label,int parens,int invert)
dvander@27	5796	{
dvander@27	5797	int index,tok;
dvander@27	5798	cell cidx;
dvander@27	5799	int ident,tag;
faluco@62	5800	int endtok;
dvander@27	5801	cell constval;
dvander@27	5802	symbol *sym;
dvander@27	5803	int localstaging=FALSE;
dvander@27	5804
dvander@27	5805	if (!staging) {
dvander@27	5806	stgset(TRUE); /* start staging */
dvander@27	5807	localstaging=TRUE;
dvander@27	5808	#if !defined NDEBUG
dvander@27	5809	stgget(&index,&cidx); /* should start at zero if started locally */
dvander@27	5810	assert(index==0);
dvander@27	5811	#endif
dvander@27	5812	} /* if */
dvander@27	5813
dvander@27	5814	PUSHSTK_I(sc_intest);
dvander@27	5815	sc_intest=TRUE;
faluco@62	5816	endtok=0;
faluco@62	5817	if (parens!=TEST_PLAIN) {
faluco@62	5818	if (matchtoken('('))
faluco@62	5819	endtok=')';
faluco@62	5820	else if (parens==TEST_THEN)
faluco@62	5821	endtok=tTHEN;
faluco@62	5822	else if (parens==TEST_DO)
faluco@62	5823	endtok=tDO;
faluco@62	5824	} /* if */
dvander@27	5825	do {
dvander@27	5826	stgget(&index,&cidx); /* mark position (of last expression) in
dvander@27	5827	* code generator */
dvander@152	5828	ident=expression(&constval,&tag,&sym,TRUE,NULL);
dvander@27	5829	tok=matchtoken(',');
dvander@27	5830	if (tok)
dvander@27	5831	markexpr(sEXPR,NULL,0);
dvander@27	5832	} while (tok); /* do */
faluco@62	5833	if (endtok!=0)
faluco@62	5834	needtoken(endtok);
dvander@27	5835	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	5836	char *ptr=(sym->name!=NULL) ? sym->name : "-unknown-";
dvander@27	5837	error(33,ptr); /* array must be indexed */
dvander@27	5838	} /* if */
dvander@27	5839	if (ident==iCONSTEXPR) { /* constant expression */
faluco@62	5840	int testtype=0;
dvander@27	5841	sc_intest=(short)POPSTK_I();/* restore stack */
dvander@27	5842	stgdel(index,cidx);
dvander@27	5843	if (constval) { /* code always executed */
dvander@27	5844	error(206); /* redundant test: always non-zero */
faluco@62	5845	testtype=tENDLESS;
dvander@27	5846	} else {
dvander@27	5847	error(205); /* redundant code: never executed */
dvander@27	5848	jumplabel(label);
dvander@27	5849	} /* if */
dvander@27	5850	if (localstaging) {
dvander@27	5851	stgout(0); /* write "jumplabel" code */
dvander@27	5852	stgset(FALSE); /* stop staging */
dvander@27	5853	} /* if */
faluco@62	5854	return testtype;
dvander@27	5855	} /* if */
dvander@27	5856	if (tag!=0 && tag!=pc_addtag("bool"))
dvander@27	5857	if (check_userop(lneg,tag,0,1,NULL,&tag))
dvander@27	5858	invert= !invert; /* user-defined ! operator inverted result */
dvander@27	5859	if (invert)
dvander@27	5860	jmp_ne0(label); /* jump to label if true (different from 0) */
dvander@27	5861	else
dvander@27	5862	jmp_eq0(label); /* jump to label if false (equal to 0) */
dvander@27	5863	markexpr(sEXPR,NULL,0); /* end expression (give optimizer a chance) */
dvander@27	5864	sc_intest=(short)POPSTK_I(); /* double typecast to avoid warning with Microsoft C */
dvander@27	5865	if (localstaging) {
dvander@27	5866	stgout(0); /* output queue from the very beginning (see
dvander@27	5867	* assert() when localstaging is set to TRUE) */
dvander@27	5868	stgset(FALSE); /* stop staging */
dvander@27	5869	} /* if */
faluco@62	5870	return 0;
dvander@27	5871	}
dvander@27	5872
faluco@62	5873	static int doif(void)
dvander@27	5874	{
dvander@27	5875	int flab1,flab2;
dvander@27	5876	int ifindent;
faluco@62	5877	int lastst_true;
dvander@27	5878
dvander@27	5879	ifindent=stmtindent; /* save the indent of the "if" instruction */
dvander@27	5880	flab1=getlabel(); /* get label number for false branch */
faluco@62	5881	test(flab1,TEST_THEN,FALSE); /* get expression, branch to flab1 if false */
dvander@27	5882	statement(NULL,FALSE); /* if true, do a statement */
faluco@62	5883	if (!matchtoken(tELSE)) { /* if...else ? */
dvander@27	5884	setlabel(flab1); /* no, simple if..., print false label */
dvander@27	5885	} else {
faluco@62	5886	lastst_true=lastst; /* save last statement of the "true" branch */
dvander@27	5887	/* to avoid the "dangling else" error, we want a warning if the "else"
dvander@27	5888	* has a lower indent than the matching "if" */
dvander@27	5889	if (stmtindent<ifindent && sc_tabsize>0)
dvander@27	5890	error(217); /* loose indentation */
dvander@27	5891	flab2=getlabel();
dvander@27	5892	if ((lastst!=tRETURN) && (lastst!=tGOTO))
faluco@62	5893	jumplabel(flab2); /* "true" branch jumps around "else" clause, unless the "true" branch statement already jumped */
dvander@27	5894	setlabel(flab1); /* print false label */
dvander@27	5895	statement(NULL,FALSE); /* do "else" clause */
dvander@27	5896	setlabel(flab2); /* print true label */
faluco@62	5897	/* if both the "true" branch and the "false" branch ended with the same
faluco@62	5898	* kind of statement, set the last statement id to that kind, rather than
faluco@62	5899	* to the generic tIF; this allows for better "unreachable code" checking
faluco@62	5900	*/
faluco@62	5901	if (lastst==lastst_true)
faluco@62	5902	return lastst;
faluco@62	5903	} /* if */
faluco@62	5904	return tIF;
dvander@27	5905	}
dvander@27	5906
faluco@62	5907	static int dowhile(void)
dvander@27	5908	{
dvander@27	5909	int wq[wqSIZE]; /* allocate local queue */
faluco@62	5910	int save_endlessloop,retcode;
faluco@62	5911
faluco@62	5912	save_endlessloop=endlessloop;
dvander@27	5913	addwhile(wq); /* add entry to queue for "break" */
dvander@27	5914	setlabel(wq[wqLOOP]); /* loop label */
dvander@27	5915	/* The debugger uses the "break" opcode to be able to "break" out of
dvander@27	5916	* a loop. To make sure that each loop has a break opcode, even for the
dvander@27	5917	* tiniest loop, set it below the top of the loop
dvander@27	5918	*/
dvander@27	5919	setline(TRUE);
faluco@62	5920	endlessloop=test(wq[wqEXIT],TEST_DO,FALSE);/* branch to wq[wqEXIT] if false */
dvander@27	5921	statement(NULL,FALSE); /* if so, do a statement */
dvander@27	5922	jumplabel(wq[wqLOOP]); /* and loop to "while" start */
dvander@27	5923	setlabel(wq[wqEXIT]); /* exit label */
dvander@27	5924	delwhile(); /* delete queue entry */
faluco@62	5925
faluco@62	5926	retcode=endlessloop ? tENDLESS : tWHILE;
faluco@62	5927	endlessloop=save_endlessloop;
faluco@62	5928	return retcode;
dvander@27	5929	}
dvander@27	5930
dvander@27	5931	/*
dvander@27	5932	* Note that "continue" will in this case not jump to the top of the loop, but
dvander@27	5933	* to the end: just before the TRUE-or-FALSE testing code.
dvander@27	5934	*/
faluco@62	5935	static int dodo(void)
dvander@27	5936	{
dvander@27	5937	int wq[wqSIZE],top;
faluco@62	5938	int save_endlessloop,retcode;
faluco@62	5939
faluco@62	5940	save_endlessloop=endlessloop;
dvander@27	5941	addwhile(wq); /* see "dowhile" for more info */
dvander@27	5942	top=getlabel(); /* make a label first */
dvander@27	5943	setlabel(top); /* loop label */
dvander@27	5944	statement(NULL,FALSE);
dvander@27	5945	needtoken(tWHILE);
dvander@27	5946	setlabel(wq[wqLOOP]); /* "continue" always jumps to WQLOOP. */
dvander@27	5947	setline(TRUE);
faluco@62	5948	endlessloop=test(wq[wqEXIT],TEST_OPT,FALSE);
dvander@27	5949	jumplabel(top);
dvander@27	5950	setlabel(wq[wqEXIT]);
dvander@27	5951	delwhile();
dvander@27	5952	needtoken(tTERM);
faluco@62	5953
faluco@62	5954	retcode=endlessloop ? tENDLESS : tDO;
faluco@62	5955	endlessloop=save_endlessloop;
faluco@62	5956	return retcode;
dvander@27	5957	}
dvander@27	5958
faluco@62	5959	static int dofor(void)
dvander@27	5960	{
dvander@27	5961	int wq[wqSIZE],skiplab;
dvander@27	5962	cell save_decl;
faluco@62	5963	int save_nestlevel,save_endlessloop;
faluco@62	5964	int index,endtok;
dvander@27	5965	int *ptr;
dvander@27	5966
dvander@27	5967	save_decl=declared;
dvander@27	5968	save_nestlevel=nestlevel;
faluco@62	5969	save_endlessloop=endlessloop;
dvander@117	5970	pushstacklist();
dvander@117	5971
dvander@27	5972	addwhile(wq);
dvander@27	5973	skiplab=getlabel();
faluco@62	5974	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	5975	if (matchtoken(';')==0) {
dvander@27	5976	/* new variable declarations are allowed here */
dvander@27	5977	if (matchtoken(tNEW)) {
dvander@27	5978	/* The variable in expr1 of the for loop is at a
dvander@27	5979	* 'compound statement' level of it own.
dvander@27	5980	*/
dvander@27	5981	nestlevel++;
faluco@63	5982	autozero=1;
dvander@27	5983	declloc(FALSE); /* declare local variable */
dvander@27	5984	} else {
dvander@27	5985	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 1 */
dvander@27	5986	needtoken(';');
dvander@27	5987	} /* if */
dvander@27	5988	} /* if */
dvander@27	5989	/* Adjust the "declared" field in the "while queue", in case that
dvander@27	5990	* local variables were declared in the first expression of the
dvander@27	5991	* "for" loop. These are deleted in separately, so a "break" or a "continue"
dvander@27	5992	* must ignore these fields.
dvander@27	5993	*/
dvander@27	5994	ptr=readwhile();
dvander@27	5995	assert(ptr!=NULL);
dvander@117	5996	/*ptr[wqBRK]=(int)declared;
dvander@117	5997	*ptr[wqCONT]=(int)declared;
dvander@117	5998	*/
dvander@117	5999	ptr[wqBRK] = stackusage->list_id;
dvander@117	6000	ptr[wqCONT] = stackusage->list_id;
dvander@27	6001	jumplabel(skiplab); /* skip expression 3 1st time */
dvander@27	6002	setlabel(wq[wqLOOP]); /* "continue" goes to this label: expr3 */
dvander@27	6003	setline(TRUE);
dvander@27	6004	/* Expressions 2 and 3 are reversed in the generated code: expression 3
dvander@27	6005	* precedes expression 2. When parsing, the code is buffered and marks for
dvander@27	6006	* the start of each expression are insterted in the buffer.
dvander@27	6007	*/
dvander@27	6008	assert(!staging);
dvander@27	6009	stgset(TRUE); /* start staging */
dvander@27	6010	assert(stgidx==0);
dvander@27	6011	index=stgidx;
dvander@27	6012	stgmark(sSTARTREORDER);
dvander@27	6013	stgmark((char)(sEXPRSTART+0)); /* mark start of 2nd expression in stage */
dvander@27	6014	setlabel(skiplab); /* jump to this point after 1st expression */
faluco@62	6015	if (matchtoken(';')) {
faluco@62	6016	endlessloop=1;
faluco@62	6017	} else {
faluco@62	6018	endlessloop=test(wq[wqEXIT],TEST_PLAIN,FALSE);/* expression 2 (jump to wq[wqEXIT] if false) */
dvander@27	6019	needtoken(';');
dvander@27	6020	} /* if */
dvander@27	6021	stgmark((char)(sEXPRSTART+1)); /* mark start of 3th expression in stage */
faluco@62	6022	if (!matchtoken(endtok)) {
dvander@27	6023	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 3 */
faluco@62	6024	needtoken(endtok);
dvander@27	6025	} /* if */
dvander@27	6026	stgmark(sENDREORDER); /* mark end of reversed evaluation */
dvander@27	6027	stgout(index);
dvander@27	6028	stgset(FALSE); /* stop staging */
dvander@27	6029	statement(NULL,FALSE);
dvander@27	6030	jumplabel(wq[wqLOOP]);
dvander@27	6031	setlabel(wq[wqEXIT]);
dvander@27	6032	delwhile();
dvander@27	6033
dvander@27	6034	assert(nestlevel>=save_nestlevel);
dvander@27	6035	if (nestlevel>save_nestlevel) {
dvander@27	6036	/* Clean up the space and the symbol table for the local
dvander@27	6037	* variable in "expr1".
dvander@27	6038	*/
dvander@27	6039	destructsymbols(&loctab,nestlevel);
dvander@459	6040	popstacklist(1);
dvander@27	6041	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	6042	declared=save_decl;
dvander@27	6043	delete_symbols(&loctab,nestlevel,FALSE,TRUE);
dvander@27	6044	nestlevel=save_nestlevel; /* reset 'compound statement' nesting level */
dvander@754	6045	} else {
dvander@754	6046	popstacklist(0);
dvander@27	6047	} /* if */
faluco@62	6048
faluco@62	6049	index=endlessloop ? tENDLESS : tFOR;
faluco@62	6050	endlessloop=save_endlessloop;
faluco@62	6051	return index;
dvander@27	6052	}
dvander@27	6053
dvander@27	6054	/* The switch statement is incompatible with its C sibling:
dvander@27	6055	* 1. the cases are not drop through
dvander@27	6056	* 2. only one instruction may appear below each case, use a compound
dvander@27	6057	* instruction to execute multiple instructions
dvander@27	6058	* 3. the "case" keyword accepts a comma separated list of values to
dvander@117	6059	* match
dvander@27	6060	*
dvander@27	6061	* SWITCH param
dvander@27	6062	* PRI = expression result
dvander@27	6063	* param = table offset (code segment)
dvander@27	6064	*
dvander@27	6065	*/
dvander@27	6066	static void doswitch(void)
dvander@27	6067	{
dvander@27	6068	int lbl_table,lbl_exit,lbl_case;
faluco@62	6069	int swdefault,casecount;
faluco@62	6070	int tok,endtok;
dvander@27	6071	cell val;
dvander@27	6072	char *str;
dvander@27	6073	constvalue caselist = { NULL, "", 0, 0}; /* case list starts empty */
dvander@27	6074	constvalue cse,csp;
dvander@27	6075	char labelname[sNAMEMAX+1];
dvander@27	6076
faluco@62	6077	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	6078	doexpr(TRUE,FALSE,FALSE,FALSE,NULL,NULL,TRUE);/* evaluate switch expression */
faluco@62	6079	needtoken(endtok);
dvander@27	6080	/* generate the code for the switch statement, the label is the address
dvander@27	6081	* of the case table (to be generated later).
dvander@27	6082	*/
dvander@27	6083	lbl_table=getlabel();
dvander@27	6084	lbl_case=0; /* just to avoid a compiler warning */
dvander@27	6085	ffswitch(lbl_table);
dvander@27	6086
faluco@62	6087	if (matchtoken(tBEGIN)) {
faluco@62	6088	endtok=tEND;
faluco@62	6089	} else {
faluco@62	6090	endtok='}';
faluco@62	6091	needtoken('{');
faluco@62	6092	} /* if */
dvander@27	6093	lbl_exit=getlabel(); /* get label number for jumping out of switch */
dvander@27	6094	swdefault=FALSE;
dvander@27	6095	casecount=0;
dvander@27	6096	do {
dvander@27	6097	tok=lex(&val,&str); /* read in (new) token */
dvander@27	6098	switch (tok) {
dvander@27	6099	case tCASE:
dvander@27	6100	if (swdefault!=FALSE)
dvander@27	6101	error(15); /* "default" case must be last in switch statement */
dvander@27	6102	lbl_case=getlabel();
dvander@27	6103	PUSHSTK_I(sc_allowtags);
dvander@27	6104	sc_allowtags=FALSE; /* do not allow tagnames here */
dvander@27	6105	do {
dvander@27	6106	casecount++;
dvander@27	6107
dvander@27	6108	/* ??? enforce/document that, in a switch, a statement cannot start
dvander@27	6109	* with a label. Then, you can search for:
dvander@27	6110	* * the first semicolon (marks the end of a statement)
dvander@27	6111	* * an opening brace (marks the start of a compound statement)
dvander@27	6112	* and search for the right-most colon before that statement
dvander@27	6113	* Now, by replacing the ':' by a special COLON token, you can
dvander@27	6114	* parse all expressions until that special token.
dvander@27	6115	*/
dvander@27	6116
dvander@27	6117	constexpr(&val,NULL,NULL);
dvander@27	6118	/* Search the insertion point (the table is kept in sorted order, so
dvander@27	6119	* that advanced abstract machines can sift the case table with a
dvander@27	6120	* binary search). Check for duplicate case values at the same time.
dvander@27	6121	*/
dvander@27	6122	for (csp=&caselist, cse=caselist.next;
dvander@27	6123	cse!=NULL && cse->value<val;
dvander@27	6124	csp=cse, cse=cse->next)
dvander@27	6125	/* nothing */;
dvander@27	6126	if (cse!=NULL && cse->value==val)
dvander@27	6127	error(40,val); /* duplicate "case" label */
dvander@27	6128	/* Since the label is stored as a string in the "constvalue", the
dvander@27	6129	* size of an identifier must be at least 8, as there are 8
dvander@27	6130	* hexadecimal digits in a 32-bit number.
dvander@27	6131	*/
dvander@27	6132	#if sNAMEMAX < 8
dvander@27	6133	#error Length of identifier (sNAMEMAX) too small.
dvander@27	6134	#endif
dvander@27	6135	assert(csp!=NULL);
dvander@27	6136	assert(csp->next==cse);
dvander@27	6137	insert_constval(csp,cse,itoh(lbl_case),val,0);
dvander@27	6138	if (matchtoken(tDBLDOT)) {
dvander@101	6139	error(1, ":", "..");
dvander@27	6140	} /* if */
dvander@27	6141	} while (matchtoken(','));
dvander@27	6142	needtoken(':'); /* ':' ends the case */
dvander@27	6143	sc_allowtags=(short)POPSTK_I(); /* reset */
dvander@27	6144	setlabel(lbl_case);
dvander@27	6145	statement(NULL,FALSE);
dvander@27	6146	jumplabel(lbl_exit);
dvander@27	6147	break;
dvander@27	6148	case tDEFAULT:
dvander@27	6149	if (swdefault!=FALSE)
dvander@27	6150	error(16); /* multiple defaults in switch */
dvander@27	6151	lbl_case=getlabel();
dvander@27	6152	setlabel(lbl_case);
dvander@27	6153	needtoken(':');
dvander@27	6154	swdefault=TRUE;
dvander@27	6155	statement(NULL,FALSE);
dvander@27	6156	/* Jump to lbl_exit, even thouh this is the last clause in the
dvander@27	6157	* switch, because the jump table is generated between the last
dvander@27	6158	* clause of the switch and the exit label.
dvander@27	6159	*/
dvander@27	6160	jumplabel(lbl_exit);
dvander@27	6161	break;
dvander@27	6162	default:
faluco@62	6163	if (tok!=endtok) {
faluco@62	6164	error(2);
faluco@62	6165	indent_nowarn=TRUE; /* disable this check */
faluco@62	6166	tok=endtok; /* break out of the loop after an error */
faluco@62	6167	} /* if */
dvander@27	6168	} /* switch */
faluco@62	6169	} while (tok!=endtok);
dvander@27	6170
dvander@27	6171	#if !defined NDEBUG
dvander@27	6172	/* verify that the case table is sorted (unfortunatly, duplicates can
dvander@27	6173	* occur; there really shouldn't be duplicate cases, but the compiler
dvander@27	6174	* may not crash or drop into an assertion for a user error). */
dvander@27	6175	for (cse=caselist.next; cse!=NULL && cse->next!=NULL; cse=cse->next)
dvander@27	6176	assert(cse->value <= cse->next->value);
dvander@27	6177	#endif
dvander@27	6178	/* generate the table here, before lbl_exit (general jump target) */
dvander@27	6179	setlabel(lbl_table);
dvander@27	6180	assert(swdefault==FALSE \|\| swdefault==TRUE);
dvander@27	6181	if (swdefault==FALSE) {
dvander@27	6182	/* store lbl_exit as the "none-matched" label in the switch table */
dvander@27	6183	strcpy(labelname,itoh(lbl_exit));
dvander@27	6184	} else {
dvander@27	6185	/* lbl_case holds the label of the "default" clause */
dvander@27	6186	strcpy(labelname,itoh(lbl_case));
dvander@27	6187	} /* if */
dvander@27	6188	ffcase(casecount,labelname,TRUE);
dvander@27	6189	/* generate the rest of the table */
dvander@27	6190	for (cse=caselist.next; cse!=NULL; cse=cse->next)
dvander@27	6191	ffcase(cse->value,cse->name,FALSE);
dvander@27	6192
dvander@27	6193	setlabel(lbl_exit);
dvander@27	6194	delete_consttable(&caselist); /* clear list of case labels */
dvander@27	6195	}
dvander@27	6196
dvander@27	6197	static void doassert(void)
dvander@27	6198	{
dvander@27	6199	int flab1,index;
dvander@27	6200	cell cidx;
dvander@27	6201
dvander@27	6202	if ((sc_debug & sCHKBOUNDS)!=0) {
dvander@27	6203	flab1=getlabel(); /* get label number for "OK" branch */
faluco@62	6204	test(flab1,TEST_PLAIN,TRUE);/* get expression and branch to flab1 if true */
dvander@27	6205	insert_dbgline(fline); /* make sure we can find the correct line number */
dvander@27	6206	ffabort(xASSERTION);
dvander@27	6207	setlabel(flab1);
dvander@27	6208	} else {
dvander@27	6209	stgset(TRUE); /* start staging */
dvander@27	6210	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	6211	do {
dvander@152	6212	expression(NULL,NULL,NULL,FALSE,NULL);
dvander@27	6213	stgdel(index,cidx); /* just scrap the code */
dvander@27	6214	} while (matchtoken(','));
dvander@27	6215	stgset(FALSE); /* stop staging */
dvander@27	6216	} /* if */
dvander@27	6217	needtoken(tTERM);
dvander@27	6218	}
dvander@27	6219
dvander@27	6220	static void dogoto(void)
dvander@27	6221	{
dvander@27	6222	char *st;
dvander@27	6223	cell val;
dvander@27	6224	symbol *sym;
dvander@27	6225
faluco@62	6226	/* if we were inside an endless loop, assume that we jump out of it */
faluco@62	6227	endlessloop=0;
faluco@62	6228
dvander@27	6229	if (lex(&val,&st)==tSYMBOL) {
dvander@27	6230	sym=fetchlab(st);
dvander@27	6231	jumplabel((int)sym->addr);
dvander@27	6232	sym->usage\|=uREAD; /* set "uREAD" bit */
dvander@27	6233	// ??? if the label is defined (check sym->usage & uDEFINE), check
dvander@27	6234	// sym->compound (nesting level of the label) against nestlevel;
dvander@27	6235	// if sym->compound < nestlevel, call the destructor operator
dvander@27	6236	} else {
dvander@27	6237	error(20,st); /* illegal symbol name */
dvander@27	6238	} /* if */
dvander@27	6239	needtoken(tTERM);
dvander@27	6240	}
dvander@27	6241
dvander@27	6242	static void dolabel(void)
dvander@27	6243	{
dvander@27	6244	char *st;
dvander@27	6245	cell val;
dvander@27	6246	symbol *sym;
dvander@27	6247
dvander@27	6248	tokeninfo(&val,&st); /* retrieve label name again */
dvander@27	6249	if (find_constval(&tagname_tab,st,0)!=NULL)
dvander@27	6250	error(221,st); /* label name shadows tagname */
dvander@27	6251	sym=fetchlab(st);
dvander@27	6252	setlabel((int)sym->addr);
dvander@27	6253	/* since one can jump around variable declarations or out of compound
dvander@27	6254	* blocks, the stack must be manually adjusted
dvander@27	6255	*/
dvander@117	6256	//:TODO: This is actually generated, egads!
dvander@117	6257	//We have to support this and LCTRL/SCTRL
dvander@27	6258	setstk(-declared*sizeof(cell));
dvander@27	6259	sym->usage\|=uDEFINE; /* label is now defined */
dvander@27	6260	}
dvander@27	6261
dvander@27	6262	/* fetchlab
dvander@27	6263	*
dvander@27	6264	* Finds a label from the (local) symbol table or adds one to it.
dvander@27	6265	* Labels are local in scope.
dvander@27	6266	*
dvander@27	6267	* Note: The "_usage" bit is set to zero. The routines that call "fetchlab()"
dvander@27	6268	* must set this bit accordingly.
dvander@27	6269	*/
dvander@27	6270	static symbol fetchlab(char name)
dvander@27	6271	{
dvander@27	6272	symbol *sym;
dvander@27	6273
dvander@27	6274	sym=findloc(name); /* labels are local in scope */
dvander@27	6275	if (sym){
dvander@27	6276	if (sym->ident!=iLABEL)
dvander@27	6277	error(19,sym->name); /* not a label: ... */
dvander@27	6278	} else {
dvander@27	6279	sym=addsym(name,getlabel(),iLABEL,sLOCAL,0,0);
dvander@27	6280	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	6281	sym->x.declared=(int)declared;
dvander@27	6282	sym->compound=nestlevel;
dvander@27	6283	} /* if */
dvander@27	6284	return sym;
dvander@27	6285	}
dvander@27	6286
dvander@27	6287	/* doreturn
dvander@27	6288	*
dvander@27	6289	* Global references: rettype (altered)
dvander@27	6290	*/
dvander@27	6291	static void doreturn(void)
dvander@27	6292	{
dvander@27	6293	int tag,ident;
dvander@27	6294	int level;
dvander@27	6295	symbol sym,sub;
dvander@27	6296
dvander@27	6297	if (!matchtoken(tTERM)) {
dvander@27	6298	/* "return <value>" */
dvander@27	6299	if ((rettype & uRETNONE)!=0)
dvander@27	6300	error(78); /* mix "return;" and "return value;" */
dvander@103	6301	ident=doexpr(TRUE,FALSE,TRUE,FALSE,&tag,&sym,TRUE);
dvander@27	6302	needtoken(tTERM);
dvander@27	6303	/* see if this function already has a sub type (an array attached) */
dvander@27	6304	sub=finddepend(curfunc);
dvander@27	6305	assert(sub==NULL \|\| sub->ident==iREFARRAY);
dvander@27	6306	if ((rettype & uRETVALUE)!=0) {
dvander@27	6307	int retarray=(ident==iARRAY \|\| ident==iREFARRAY);
dvander@27	6308	/* there was an earlier "return" statement in this function */
dvander@27	6309	if (sub==NULL && retarray \|\| sub!=NULL && !retarray)
dvander@27	6310	error(79); /* mixing "return array;" and "return value;" */
dvander@27	6311	if (retarray && (curfunc->usage & uPUBLIC)!=0)
dvander@27	6312	error(90,curfunc->name); /* public function may not return array */
dvander@27	6313	} /* if */
dvander@27	6314	rettype\|=uRETVALUE; /* function returns a value */
dvander@27	6315	/* check tagname with function tagname */
dvander@27	6316	assert(curfunc!=NULL);
dvander@151	6317	if (!matchtag_string(ident, tag) && !matchtag(curfunc->tag,tag,TRUE))
dvander@27	6318	error(213); /* tagname mismatch */
dvander@27	6319	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	6320	int dim[sDIMEN_MAX],numdim;
dvander@27	6321	cell arraysize;
dvander@27	6322	assert(sym!=NULL);
dvander@27	6323	if (sub!=NULL) {
dvander@27	6324	assert(sub->ident==iREFARRAY);
dvander@27	6325	/* this function has an array attached already; check that the current
dvander@27	6326	* "return" statement returns exactly the same array
dvander@27	6327	*/
dvander@27	6328	level=sym->dim.array.level;
dvander@27	6329	if (sub->dim.array.level!=level) {
dvander@27	6330	error(48); /* array dimensions must match */
dvander@27	6331	} else {
dvander@27	6332	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6333	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6334	if (sym->dim.array.length!=dim[numdim])
dvander@27	6335	error(47); /* array sizes must match */
dvander@27	6336	if (numdim<level) {
dvander@27	6337	sym=finddepend(sym);
dvander@27	6338	sub=finddepend(sub);
dvander@27	6339	assert(sym!=NULL && sub!=NULL);
dvander@27	6340	/* ^^^ both arrays have the same dimensions (this was checked
dvander@27	6341	* earlier) so the dependend should always be found
dvander@27	6342	*/
dvander@27	6343	} /* if */
dvander@27	6344	} /* for */
dvander@27	6345	} /* if */
dvander@27	6346	} else {
dvander@27	6347	int idxtag[sDIMEN_MAX];
dvander@27	6348	int argcount;
dvander@27	6349	/* this function does not yet have an array attached; clone the
dvander@27	6350	* returned symbol beneath the current function
dvander@27	6351	*/
dvander@27	6352	sub=sym;
dvander@27	6353	assert(sub!=NULL);
dvander@27	6354	level=sub->dim.array.level;
dvander@27	6355	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6356	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6357	idxtag[numdim]=sub->x.tags.index;
dvander@27	6358	if (numdim<level) {
dvander@27	6359	sub=finddepend(sub);
dvander@27	6360	assert(sub!=NULL);
dvander@27	6361	} /* if */
dvander@27	6362	/* check that all dimensions are known */
dvander@27	6363	if (dim[numdim]<=0)
dvander@27	6364	error(46,sym->name);
dvander@27	6365	} /* for */
dvander@27	6366	/* the address of the array is stored in a hidden parameter; the address
dvander@27	6367	* of this parameter is 1 + the number of parameters (times the size of
dvander@27	6368	* a cell) + the size of the stack frame and the return address
dvander@27	6369	* base + 0*sizeof(cell) == previous "base"
dvander@27	6370	* base + 1*sizeof(cell) == function return address
dvander@27	6371	* base + 2*sizeof(cell) == number of arguments
dvander@27	6372	* base + 3*sizeof(cell) == first argument of the function
dvander@27	6373	* ...
dvander@27	6374	* base + ((n-1)+3)*sizeof(cell) == last argument of the function
dvander@27	6375	* base + (n+3)*sizeof(cell) == hidden parameter with array address
dvander@27	6376	*/
dvander@27	6377	assert(curfunc!=NULL);
dvander@27	6378	assert(curfunc->dim.arglist!=NULL);
dvander@27	6379	for (argcount=0; curfunc->dim.arglist[argcount].ident!=0; argcount++)
dvander@27	6380	/* nothing */;
dvander@27	6381	sub=addvariable(curfunc->name,(argcount+3)*sizeof(cell),iREFARRAY,sGLOBAL,curfunc->tag,dim,numdim,idxtag);
dvander@27	6382	sub->parent=curfunc;
dvander@27	6383	} /* if */
dvander@27	6384	/* get the hidden parameter, copy the array (the array is on the heap;
dvander@27	6385	* it stays on the heap for the moment, and it is removed -usually- at
dvander@27	6386	* the end of the expression/statement, see expression() in SC3.C)
dvander@27	6387	*/
dvander@27	6388	address(sub,sALT); /* ALT = destination */
dvander@27	6389	arraysize=calc_arraysize(dim,numdim,0);
dvander@27	6390	memcopy(arraysizesizeof(cell)); / source already in PRI */
dvander@27	6391	/* moveto1(); is not necessary, callfunction() does a popreg() */
dvander@27	6392	} /* if */
dvander@27	6393	} else {
dvander@27	6394	/* this return statement contains no expression */
dvander@27	6395	ldconst(0,sPRI);
dvander@27	6396	if ((rettype & uRETVALUE)!=0) {
dvander@27	6397	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	6398	assert(curfunc!=NULL);
dvander@27	6399	funcdisplayname(symname,curfunc->name);
dvander@27	6400	error(209,symname); /* function should return a value */
dvander@27	6401	} /* if */
dvander@27	6402	rettype\|=uRETNONE; /* function does not return anything */
dvander@27	6403	} /* if */
dvander@27	6404	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@118	6405	genheapfree(-1);
dvander@117	6406	genstackfree(-1); /* free everything on the stack */
dvander@27	6407	ffret(strcmp(curfunc->name,uENTRYFUNC)!=0);
dvander@27	6408	}
dvander@27	6409
dvander@27	6410	static void dobreak(void)
dvander@27	6411	{
dvander@27	6412	int *ptr;
dvander@27	6413
faluco@62	6414	endlessloop=0; /* if we were inside an endless loop, we just jumped out */
dvander@27	6415	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6416	needtoken(tTERM);
dvander@27	6417	if (ptr==NULL)
dvander@27	6418	return;
dvander@27	6419	destructsymbols(&loctab,nestlevel);
dvander@117	6420	genstackfree(ptr[wqBRK]);
dvander@27	6421	jumplabel(ptr[wqEXIT]);
dvander@27	6422	}
dvander@27	6423
dvander@27	6424	static void docont(void)
dvander@27	6425	{
dvander@27	6426	int *ptr;
dvander@27	6427
dvander@27	6428	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6429	needtoken(tTERM);
dvander@27	6430	if (ptr==NULL)
dvander@27	6431	return;
dvander@27	6432	destructsymbols(&loctab,nestlevel);
dvander@117	6433	genstackfree(ptr[wqCONT]);
dvander@128	6434	genheapfree(ptr[wqCONT]);
dvander@27	6435	jumplabel(ptr[wqLOOP]);
dvander@27	6436	}
dvander@27	6437
dvander@27	6438	SC_FUNC void exporttag(int tag)
dvander@27	6439	{
dvander@27	6440	/* find the tag by value in the table, then set the top bit to mark it
dvander@27	6441	* "public"
dvander@27	6442	*/
dvander@27	6443	if (tag!=0 && (tag & PUBLICTAG)==0) {
dvander@27	6444	constvalue *ptr;
dvander@27	6445	for (ptr=tagname_tab.next; ptr!=NULL && tag!=(int)(ptr->value & TAGMASK); ptr=ptr->next)
dvander@27	6446	/* nothing */;
dvander@27	6447	if (ptr!=NULL)
dvander@27	6448	ptr->value \|= PUBLICTAG;
dvander@27	6449	} /* if */
dvander@27	6450	}
dvander@27	6451
dvander@27	6452	static void doexit(void)
dvander@27	6453	{
dvander@27	6454	int tag=0;
dvander@27	6455
dvander@27	6456	if (matchtoken(tTERM)==0){
dvander@27	6457	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6458	needtoken(tTERM);
dvander@27	6459	} else {
dvander@27	6460	ldconst(0,sPRI);
dvander@27	6461	} /* if */
dvander@27	6462	ldconst(tag,sALT);
dvander@27	6463	exporttag(tag);
dvander@27	6464	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@27	6465	ffabort(xEXIT);
dvander@27	6466	}
dvander@27	6467
dvander@27	6468	static void dosleep(void)
dvander@27	6469	{
dvander@27	6470	int tag=0;
dvander@27	6471
dvander@27	6472	if (matchtoken(tTERM)==0){
dvander@27	6473	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6474	needtoken(tTERM);
dvander@27	6475	} else {
dvander@27	6476	ldconst(0,sPRI);
dvander@27	6477	} /* if */
dvander@27	6478	ldconst(tag,sALT);
dvander@27	6479	exporttag(tag);
dvander@27	6480	ffabort(xSLEEP);
dvander@27	6481
dvander@27	6482	/* for stack usage checking, mark the use of the sleep instruction */
dvander@27	6483	pc_memflags \|= suSLEEP_INSTR;
dvander@27	6484	}
dvander@27	6485
dvander@27	6486	static void dostate(void)
dvander@27	6487	{
dvander@27	6488	char name[sNAMEMAX+1];
dvander@27	6489	constvalue *automaton;
dvander@27	6490	constvalue *state;
dvander@27	6491	constvalue *stlist;
dvander@27	6492	int flabel;
dvander@27	6493	symbol *sym;
dvander@27	6494	#if !defined SC_LIGHT
dvander@27	6495	int length,index,listid,listindex,stateindex;
dvander@27	6496	char *doc;
dvander@27	6497	#endif
dvander@27	6498
dvander@27	6499	/* check for an optional condition */
dvander@27	6500	if (matchtoken('(')) {
dvander@27	6501	flabel=getlabel(); /* get label number for "false" branch */
dvander@27	6502	pc_docexpr=TRUE; /* attach expression as a documentation string */
faluco@62	6503	test(flabel,TEST_PLAIN,FALSE);/* get expression, branch to flabel if false */
dvander@27	6504	pc_docexpr=FALSE;
dvander@27	6505	needtoken(')');
dvander@27	6506	} else {
dvander@27	6507	flabel=-1;
dvander@27	6508	} /* if */
dvander@27	6509
dvander@27	6510	if (!sc_getstateid(&automaton,&state)) {
dvander@27	6511	delete_autolisttable();
dvander@27	6512	return;
dvander@27	6513	} /* if */
dvander@27	6514	needtoken(tTERM);
dvander@27	6515
dvander@27	6516	/* store the new state id */
dvander@27	6517	assert(state!=NULL);
dvander@27	6518	ldconst(state->value,sPRI);
dvander@27	6519	assert(automaton!=NULL);
dvander@27	6520	assert(automaton->index==0 && automaton->name[0]=='\0' \|\| automaton->index>0);
dvander@27	6521	storereg(automaton->value,sPRI);
dvander@27	6522
dvander@27	6523	/* find the optional entry() function for the state */
dvander@27	6524	sym=findglb(uENTRYFUNC,sGLOBAL);
dvander@27	6525	if (sc_status==statWRITE && sym!=NULL && sym->ident==iFUNCTN && sym->states!=NULL) {
dvander@27	6526	for (stlist=sym->states->next; stlist!=NULL; stlist=stlist->next) {
dvander@27	6527	assert(strlen(stlist->name)!=0);
dvander@27	6528	if (state_getfsa(stlist->index)==automaton->index && state_inlist(stlist->index,(int)state->value))
dvander@27	6529	break; /* found! */
dvander@27	6530	} /* for */
dvander@27	6531	assert(stlist==NULL \|\| state_inlist(stlist->index,state->value));
dvander@27	6532	if (stlist!=NULL) {
dvander@27	6533	/* the label to jump to is in stlist->name */
dvander@27	6534	ffcall(sym,stlist->name,0);
dvander@27	6535	} /* if */
dvander@27	6536	} /* if */
dvander@27	6537
dvander@27	6538	if (flabel>=0)
dvander@27	6539	setlabel(flabel); /* condition was false, jump around the state switch */
dvander@27	6540
dvander@27	6541	#if !defined SC_LIGHT
dvander@27	6542	/* mark for documentation */
dvander@27	6543	if (sc_status==statFIRST) {
dvander@27	6544	char *str;
dvander@27	6545	/* get the last list id attached to the function, this contains the source states */
dvander@27	6546	assert(curfunc!=NULL);
dvander@27	6547	if (curfunc->states!=NULL) {
dvander@27	6548	stlist=curfunc->states->next;
dvander@27	6549	assert(stlist!=NULL);
dvander@27	6550	while (stlist->next!=NULL)
dvander@27	6551	stlist=stlist->next;
dvander@27	6552	listid=stlist->index;
dvander@27	6553	} else {
dvander@27	6554	listid=-1;
dvander@27	6555	} /* if */
dvander@27	6556	listindex=0;
dvander@27	6557	length=strlen(name)+70; /* +70 for the fixed part "<transition ... />\n" */
dvander@27	6558	/* see if there are any condition strings to attach */
dvander@27	6559	for (index=0; (str=get_autolist(index))!=NULL; index++)
dvander@27	6560	length+=strlen(str);
dvander@27	6561	if ((doc=(char)malloc(lengthsizeof(char)))!=NULL) {
dvander@27	6562	do {
dvander@27	6563	sprintf(doc,"<transition target=\"%s\"",name);
dvander@27	6564	if (listid>=0) {
dvander@27	6565	/* get the source state */
dvander@27	6566	stateindex=state_listitem(listid,listindex);
dvander@27	6567	state=state_findid(stateindex);
dvander@27	6568	assert(state!=NULL);
dvander@27	6569	sprintf(doc+strlen(doc)," source=\"%s\"",state->name);
dvander@27	6570	} /* if */
dvander@27	6571	if (get_autolist(0)!=NULL) {
dvander@27	6572	/* add the condition */
dvander@27	6573	strcat(doc," condition=\"");
dvander@27	6574	for (index=0; (str=get_autolist(index))!=NULL; index++) {
dvander@27	6575	/* remove the ')' token that may be appended before detecting that the expression has ended */
dvander@27	6576	if (str!=')' \|\| (str+1)!='\0' \|\| get_autolist(index+1)!=NULL)
dvander@27	6577	strcat(doc,str);
dvander@27	6578	} /* for */
dvander@27	6579	strcat(doc,"\"");
dvander@27	6580	} /* if */
dvander@27	6581	strcat(doc,"/>\n");
dvander@27	6582	insert_docstring(doc);
dvander@27	6583	} while (listid>=0 && ++listindex<state_count(listid));
dvander@27	6584	free(doc);
dvander@27	6585	} /* if */
dvander@27	6586	} /* if */
dvander@27	6587	#endif
dvander@27	6588	delete_autolisttable();
dvander@27	6589	}
dvander@27	6590
dvander@27	6591
dvander@27	6592	static void addwhile(int *ptr)
dvander@27	6593	{
dvander@27	6594	int k;
dvander@27	6595
dvander@640	6596	ptr[wqBRK]=stackusage->list_id; /* stack pointer (for "break") */
dvander@640	6597	ptr[wqCONT]=stackusage->list_id; /* for "continue", possibly adjusted later */
dvander@27	6598	ptr[wqLOOP]=getlabel();
dvander@27	6599	ptr[wqEXIT]=getlabel();
dvander@27	6600	if (wqptr>=(wq+wqTABSZ-wqSIZE))
ds@841	6601	error(122,"loop table"); /* loop table overflow (too many active loops)*/
dvander@27	6602	k=0;
dvander@27	6603	while (k<wqSIZE){ /* copy "ptr" to while queue table */
dvander@27	6604	wqptr=ptr;
dvander@27	6605	wqptr+=1;
dvander@27	6606	ptr+=1;
dvander@27	6607	k+=1;
dvander@27	6608	} /* while */
dvander@27	6609	}
dvander@27	6610
dvander@27	6611	static void delwhile(void)
dvander@27	6612	{
dvander@27	6613	if (wqptr>wq)
dvander@27	6614	wqptr-=wqSIZE;
dvander@27	6615	}
dvander@27	6616
dvander@27	6617	static int *readwhile(void)
dvander@27	6618	{
dvander@27	6619	if (wqptr<=wq){
dvander@27	6620	error(24); /* out of context */
dvander@27	6621	return NULL;
dvander@27	6622	} else {
dvander@27	6623	return (wqptr-wqSIZE);
dvander@27	6624	} /* if */
dvander@27	6625	}
dvander@27	6626

author	David Anderson <dvander@alliedmods.net>
	Sun Nov 25 18:50:13 2007 +0000 (2007-11-25)
changeset 1725	ea875bcbc286
parent 1654	c319ec3267dd
child 1858	eafaa5d8392c
permissions	-rw-r--r--