sourcemod-central: sourcepawn/compiler/sc1.c@463d266be91d (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	*
faluco@62	23	* Version: $Id: sc1.c 3636 2006-08-14 15:42:05Z thiadmer $
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@27	68	#include "svnrev.h"
dvander@116	69	#include "sctracker.h"
dvander@27	70	#define VERSION_STR "3.2." SVN_REVSTR
dvander@27	71	#define VERSION_INT 0x0302
dvander@27	72
dvander@132	73	int pc_functag = 0;
dvander@151	74	int pc_tag_string = 0;
dvander@132	75
dvander@27	76	static void resetglobals(void);
dvander@27	77	static void initglobals(void);
dvander@27	78	static char get_extension(char filename);
dvander@27	79	static void setopt(int argc,char *argv,char oname,char ename,char pname,
dvander@27	80	char rname,char codepage);
dvander@27	81	static void setconfig(char *root);
dvander@27	82	static void setcaption(void);
dvander@27	83	static void about(void);
dvander@27	84	static void setconstants(void);
dvander@27	85	static void parse(void);
dvander@27	86	static void dumplits(void);
dvander@27	87	static void dumpzero(int count);
dvander@27	88	static void declfuncvar(int fpublic,int fstatic,int fstock,int fconst);
dvander@27	89	static void declglb(char *firstname,int firsttag,int fpublic,int fstatic,
dvander@27	90	int stock,int fconst);
dvander@167	91	static void declstructvar(char firstname,int fpublic, pstruct_t pstruct);
dvander@27	92	static int declloc(int fstatic);
dvander@27	93	static void decl_const(int table);
dvander@167	94	static void declstruct();
dvander@27	95	static void decl_enum(int table);
dvander@27	96	static cell needsub(int tag,constvalue *enumroot);
dvander@27	97	static void initials(int ident,int tag,cell *size,int dim[],int numdim,
dvander@27	98	constvalue *enumroot);
dvander@27	99	static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dvander@27	100	int startlit,int counteddim[],constvalue *lastdim,
dvander@27	101	constvalue enumroot,int errorfound);
dvander@27	102	static cell initvector(int ident,int tag,cell size,int fillzero,
dvander@27	103	constvalue enumroot,int errorfound);
dvander@27	104	static cell init(int ident,int tag,int errorfound);
dvander@27	105	static int getstates(const char *funcname);
dvander@27	106	static void attachstatelist(symbol *sym, int state_id);
dvander@27	107	static void funcstub(int fnative);
dvander@27	108	static int newfunc(char *firstname,int firsttag,int fpublic,int fstatic,int stock);
dvander@27	109	static int declargs(symbol *sym,int chkshadow);
dvander@27	110	static void doarg(char *name,int ident,int offset,int tags[],int numtags,
dvander@27	111	int fpublic,int fconst,int chkshadow,arginfo *arg);
dvander@27	112	static void make_report(symbol root,FILE log,char *sourcefile);
dvander@27	113	static void reduce_referrers(symbol *root);
dvander@27	114	static long max_stacksize(symbol root,int recursion);
dvander@27	115	static int testsymbols(symbol *root,int level,int testlabs,int testconst);
dvander@27	116	static void destructsymbols(symbol *root,int level);
dvander@27	117	static constvalue find_constval_byval(constvalue table,cell val);
faluco@62	118	static symbol fetchlab(char name);
dvander@27	119	static void statement(int *lastindent,int allow_decl);
faluco@62	120	static void compound(int stmt_sameline,int starttok);
faluco@62	121	static int test(int label,int parens,int invert);
dvander@27	122	static int doexpr(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@27	123	int tag,symbol *symptr,int chkfuncresult);
dvander@152	124	static int doexpr2(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@152	125	int tag,symbol symptr,int chkfuncresult,value lval);
dvander@27	126	static void doassert(void);
dvander@27	127	static void doexit(void);
faluco@62	128	static int doif(void);
faluco@62	129	static int dowhile(void);
faluco@62	130	static int dodo(void);
faluco@62	131	static int dofor(void);
dvander@27	132	static void doswitch(void);
dvander@27	133	static void dogoto(void);
dvander@27	134	static void dolabel(void);
dvander@27	135	static void doreturn(void);
dvander@132	136	static void dofuncenum(void);
dvander@27	137	static void dobreak(void);
dvander@27	138	static void docont(void);
dvander@27	139	static void dosleep(void);
dvander@27	140	static void dostate(void);
dvander@27	141	static void addwhile(int *ptr);
dvander@27	142	static void delwhile(void);
dvander@27	143	static int *readwhile(void);
dvander@27	144	static void inst_datetime_defines(void);
dvander@27	145
faluco@62	146	enum {
faluco@62	147	TEST_PLAIN, /* no parentheses */
faluco@62	148	TEST_THEN, /* '(' <expr> ')' or <expr> 'then' */
faluco@62	149	TEST_DO, /* '(' <expr> ')' or <expr> 'do' */
faluco@62	150	TEST_OPT, /* '(' <expr> ')' or <expr> */
faluco@62	151	};
dvander@27	152	static int norun = 0; /* the compiler never ran */
faluco@62	153	static int autozero = 1; /* if 1 will zero out the variable, if 0 omit the zeroing */
dvander@27	154	static int lastst = 0; /* last executed statement type */
dvander@27	155	static int nestlevel = 0; /* number of active (open) compound statements */
faluco@62	156	static int endlessloop= 0; /* nesting level of endless loop */
dvander@27	157	static int rettype = 0; /* the type that a "return" expression should have */
dvander@27	158	static int skipinput = 0; /* number of lines to skip from the first input file */
dvander@27	159	static int optproccall = TRUE; /* support "procedure call" */
dvander@27	160	static int verbosity = 1; /* verbosity level, 0=quiet, 1=normal, 2=verbose */
dvander@27	161	static int sc_reparse = 0; /* needs 3th parse because of changed prototypes? */
dvander@27	162	static int sc_parsenum = 0; /* number of the extra parses */
dvander@27	163	static int wq[wqTABSZ]; /* "while queue", internal stack for nested loops */
dvander@27	164	static int wqptr; / pointer to next entry */
dvander@27	165	#if !defined SC_LIGHT
dvander@27	166	static char sc_rootpath[_MAX_PATH];
dvander@27	167	static char sc_documentation=NULL;/ main documentation */
dvander@27	168	#endif
dvander@27	169	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	170	static HWND hwndFinish = 0;
dvander@27	171	#endif
dvander@27	172
dvander@27	173	/* "main" of the compiler
dvander@27	174	*/
dvander@27	175	#if defined __cplusplus
dvander@27	176	extern "C"
dvander@27	177	#endif
dvander@27	178	int pc_compile(int argc, char *argv[])
dvander@27	179	{
dvander@27	180	int entry,i,jmpcode;
dvander@27	181	int retcode;
dvander@27	182	char incfname[_MAX_PATH];
dvander@27	183	char reportname[_MAX_PATH];
dvander@27	184	char codepage[MAXCODEPAGE+1];
dvander@27	185	FILE *binf;
dvander@27	186	void *inpfmark;
dvander@27	187	int lcl_packstr,lcl_needsemicolon,lcl_tabsize;
dvander@27	188	#if !defined SC_LIGHT
dvander@27	189	int hdrsize=0;
dvander@27	190	#endif
dvander@27	191	char *ptr;
dvander@27	192
dvander@27	193	/* set global variables to their initial value */
dvander@27	194	binf=NULL;
dvander@27	195	initglobals();
dvander@27	196	errorset(sRESET,0);
dvander@27	197	errorset(sEXPRRELEASE,0);
dvander@27	198	lexinit();
dvander@27	199
dvander@27	200	/* make sure that we clean up on a fatal error; do this before the first
dvander@27	201	* call to error(). */
dvander@27	202	if ((jmpcode=setjmp(errbuf))!=0)
dvander@27	203	goto cleanup;
dvander@27	204
dvander@27	205	/* allocate memory for fixed tables */
dvander@27	206	inpfname=(char*)malloc(_MAX_PATH);
dvander@27	207	if (inpfname==NULL)
dvander@27	208	error(103); /* insufficient memory */
dvander@27	209	litq=(cell)malloc(litmaxsizeof(cell));
dvander@27	210	if (litq==NULL)
dvander@27	211	error(103); /* insufficient memory */
dvander@27	212	if (!phopt_init())
dvander@27	213	error(103); /* insufficient memory */
dvander@27	214
dvander@27	215	setopt(argc,argv,outfname,errfname,incfname,reportname,codepage);
dvander@27	216	strcpy(binfname,outfname);
dvander@27	217	ptr=get_extension(binfname);
dvander@27	218	if (ptr!=NULL && stricmp(ptr,".asm")==0)
dvander@27	219	set_extension(binfname,".smx",TRUE);
dvander@27	220	else
dvander@27	221	set_extension(binfname,".smx",FALSE);
dvander@27	222	/* set output names that depend on the input name */
dvander@27	223	if (sc_listing)
dvander@27	224	set_extension(outfname,".lst",TRUE);
dvander@27	225	else
dvander@27	226	set_extension(outfname,".asm",TRUE);
dvander@27	227	if (strlen(errfname)!=0)
dvander@27	228	remove(errfname); /* delete file on startup */
dvander@27	229	else if (verbosity>0)
dvander@27	230	setcaption();
dvander@27	231	setconfig(argv[0]); /* the path to the include and codepage files */
dvander@27	232	sc_ctrlchar_org=sc_ctrlchar;
dvander@27	233	lcl_packstr=sc_packstr;
dvander@27	234	lcl_needsemicolon=sc_needsemicolon;
dvander@27	235	lcl_tabsize=sc_tabsize;
dvander@27	236	#if !defined NO_CODEPAGE
dvander@27	237	if (!cp_set(codepage)) /* set codepage */
dvander@27	238	error(108); /* codepage mapping file not found */
dvander@27	239	#endif
dvander@27	240	/* optionally create a temporary input file that is a collection of all
dvander@27	241	* input files
dvander@27	242	*/
dvander@27	243	assert(get_sourcefile(0)!=NULL); /* there must be at least one source file */
dvander@27	244	if (get_sourcefile(1)!=NULL) {
dvander@27	245	/* there are at least two or more source files */
dvander@27	246	char tname,sname;
dvander@27	247	FILE ftmp,fsrc;
dvander@27	248	int fidx;
dvander@27	249	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	250	tname=_tempnam(NULL,"pawn");
dvander@27	251	#elif defined __MSDOS__ \|\| defined _Windows
dvander@27	252	tname=tempnam(NULL,"pawn");
dvander@27	253	#elif defined(MACOS) && !defined(__MACH__)
dvander@27	254	/* tempnam is not supported for the Macintosh CFM build. */
dvander@27	255	error(104,get_sourcefile(1));
dvander@27	256	tname=NULL;
dvander@27	257	sname=NULL;
dvander@27	258	#else
dvander@27	259	tname=tempnam(NULL,"pawn");
dvander@27	260	#endif
dvander@27	261	ftmp=(FILE*)pc_createsrc(tname);
dvander@27	262	for (fidx=0; (sname=get_sourcefile(fidx))!=NULL; fidx++) {
dvander@27	263	unsigned char tstring[128];
dvander@27	264	fsrc=(FILE*)pc_opensrc(sname);
dvander@27	265	if (fsrc==NULL) {
dvander@27	266	strcpy(inpfname,sname); /* avoid invalid filename */
dvander@27	267	error(100,sname);
dvander@27	268	} /* if */
dvander@27	269	pc_writesrc(ftmp,(unsigned char*)"#file ");
dvander@27	270	pc_writesrc(ftmp,(unsigned char*)sname);
dvander@27	271	pc_writesrc(ftmp,(unsigned char*)"\n");
dvander@27	272	while (!pc_eofsrc(fsrc)) {
dvander@27	273	pc_readsrc(fsrc,tstring,sizeof tstring);
dvander@27	274	pc_writesrc(ftmp,tstring);
dvander@27	275	} /* while */
dvander@27	276	pc_closesrc(fsrc);
dvander@27	277	} /* for */
dvander@27	278	pc_closesrc(ftmp);
dvander@27	279	strcpy(inpfname,tname);
dvander@27	280	free(tname);
dvander@27	281	} else {
dvander@27	282	strcpy(inpfname,get_sourcefile(0));
dvander@27	283	} /* if */
dvander@27	284	inpf_org=(FILE*)pc_opensrc(inpfname);
dvander@27	285	if (inpf_org==NULL)
dvander@27	286	error(100,inpfname);
dvander@27	287	freading=TRUE;
dvander@27	288	outf=(FILE)pc_openasm(outfname); / first write to assembler file (may be temporary) */
dvander@27	289	if (outf==NULL)
dvander@27	290	error(101,outfname);
dvander@27	291	/* immediately open the binary file, for other programs to check */
dvander@27	292	if (sc_asmfile \|\| sc_listing) {
dvander@27	293	binf=NULL;
dvander@27	294	} else {
dvander@27	295	binf=(FILE*)pc_openbin(binfname);
dvander@27	296	if (binf==NULL)
dvander@27	297	error(101,binfname);
dvander@27	298	} /* if */
dvander@27	299	setconstants(); /* set predefined constants and tagnames */
dvander@27	300	for (i=0; i<skipinput; i++) /* skip lines in the input file */
dvander@27	301	if (pc_readsrc(inpf_org,pline,sLINEMAX)!=NULL)
dvander@27	302	fline++; /* keep line number up to date */
dvander@27	303	skipinput=fline;
dvander@27	304	sc_status=statFIRST;
dvander@27	305	/* write starting options (from the command line or the configuration file) */
dvander@27	306	if (sc_listing) {
dvander@27	307	char string[150];
dvander@27	308	sprintf(string,"#pragma ctrlchar 0x%02x\n"
dvander@27	309	"#pragma pack %s\n"
dvander@27	310	"#pragma semicolon %s\n"
dvander@27	311	"#pragma tabsize %d\n",
dvander@27	312	sc_ctrlchar,
dvander@27	313	sc_packstr ? "true" : "false",
dvander@27	314	sc_needsemicolon ? "true" : "false",
dvander@27	315	sc_tabsize);
dvander@27	316	pc_writeasm(outf,string);
dvander@27	317	setfiledirect(inpfname);
dvander@27	318	} /* if */
dvander@27	319	/* do the first pass through the file (or possibly two or more "first passes") */
dvander@27	320	sc_parsenum=0;
dvander@27	321	inpfmark=pc_getpossrc(inpf_org);
dvander@27	322	do {
dvander@27	323	/* reset "defined" flag of all functions and global variables */
dvander@27	324	reduce_referrers(&glbtab);
dvander@27	325	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@27	326	#if !defined NO_DEFINE
dvander@27	327	delete_substtable();
dvander@27	328	inst_datetime_defines();
dvander@27	329	#endif
dvander@27	330	resetglobals();
dvander@167	331	pstructs_free();
dvander@132	332	funcenums_free();
dvander@27	333	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	334	sc_packstr=lcl_packstr;
dvander@27	335	sc_needsemicolon=lcl_needsemicolon;
dvander@27	336	sc_tabsize=lcl_tabsize;
dvander@27	337	errorset(sRESET,0);
dvander@27	338	/* reset the source file */
dvander@27	339	inpf=inpf_org;
dvander@27	340	freading=TRUE;
dvander@27	341	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	342	fline=skipinput; /* reset line number */
dvander@27	343	sc_reparse=FALSE; /* assume no extra passes */
dvander@27	344	sc_status=statFIRST; /* resetglobals() resets it to IDLE */
dvander@27	345
dvander@27	346	if (strlen(incfname)>0) {
dvander@27	347	if (strcmp(incfname,sDEF_PREFIX)==0) {
dvander@27	348	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" */
dvander@27	349	} else {
dvander@27	350	if (!plungequalifiedfile(incfname)) /* parse "prefix" include file */
dvander@27	351	error(100,incfname); /* cannot read from ... (fatal error) */
dvander@27	352	} /* if */
dvander@27	353	} /* if */
dvander@27	354	preprocess(); /* fetch first line */
dvander@27	355	parse(); /* process all input */
dvander@27	356	sc_parsenum++;
dvander@27	357	} while (sc_reparse);
dvander@27	358
dvander@27	359	/* second (or third) pass */
dvander@27	360	sc_status=statWRITE; /* set, to enable warnings */
dvander@27	361	state_conflict(&glbtab);
dvander@27	362
dvander@27	363	/* write a report, if requested */
dvander@27	364	#if !defined SC_LIGHT
dvander@27	365	if (sc_makereport) {
dvander@27	366	FILE *frep=stdout;
dvander@27	367	if (strlen(reportname)>0)
dvander@27	368	frep=fopen(reportname,"wb"); /* avoid translation of \n to \r\n in DOS/Windows */
dvander@27	369	if (frep!=NULL) {
dvander@27	370	make_report(&glbtab,frep,get_sourcefile(0));
dvander@27	371	if (strlen(reportname)>0)
dvander@27	372	fclose(frep);
dvander@27	373	} /* if */
dvander@27	374	if (sc_documentation!=NULL) {
dvander@27	375	free(sc_documentation);
dvander@27	376	sc_documentation=NULL;
dvander@27	377	} /* if */
dvander@27	378	} /* if */
dvander@27	379	#endif
dvander@27	380	if (sc_listing)
dvander@27	381	goto cleanup;
dvander@27	382
dvander@27	383	/* ??? for re-parsing the listing file instead of the original source
dvander@27	384	* file (and doing preprocessing twice):
dvander@27	385	* - close input file, close listing file
dvander@27	386	* - re-open listing file for reading (inpf)
dvander@27	387	* - open assembler file (outf)
dvander@27	388	*/
dvander@27	389
dvander@27	390	/* reset "defined" flag of all functions and global variables */
dvander@27	391	reduce_referrers(&glbtab);
dvander@27	392	delete_symbols(&glbtab,0,TRUE,FALSE);
dvander@132	393	funcenums_free();
dvander@167	394	pstructs_free();
dvander@27	395	#if !defined NO_DEFINE
dvander@27	396	delete_substtable();
dvander@27	397	inst_datetime_defines();
dvander@27	398	#endif
dvander@27	399	resetglobals();
dvander@27	400	sc_ctrlchar=sc_ctrlchar_org;
dvander@27	401	sc_packstr=lcl_packstr;
dvander@27	402	sc_needsemicolon=lcl_needsemicolon;
dvander@27	403	sc_tabsize=lcl_tabsize;
dvander@27	404	errorset(sRESET,0);
dvander@27	405	/* reset the source file */
dvander@27	406	inpf=inpf_org;
dvander@27	407	freading=TRUE;
dvander@27	408	pc_resetsrc(inpf,inpfmark); /* reset file position */
dvander@27	409	fline=skipinput; /* reset line number */
dvander@27	410	lexinit(); /* clear internal flags of lex() */
dvander@27	411	sc_status=statWRITE; /* allow to write --this variable was reset by resetglobals() */
dvander@27	412	writeleader(&glbtab);
dvander@27	413	insert_dbgfile(inpfname);
dvander@27	414	if (strlen(incfname)>0) {
dvander@27	415	if (strcmp(incfname,sDEF_PREFIX)==0)
dvander@27	416	plungefile(incfname,FALSE,TRUE); /* parse "default.inc" (again) */
dvander@27	417	else
dvander@27	418	plungequalifiedfile(incfname); /* parse implicit include file (again) */
dvander@27	419	} /* if */
dvander@27	420	preprocess(); /* fetch first line */
dvander@27	421	parse(); /* process all input */
dvander@27	422	/* inpf is already closed when readline() attempts to pop of a file */
dvander@27	423	writetrailer(); /* write remaining stuff */
dvander@27	424
dvander@27	425	entry=testsymbols(&glbtab,0,TRUE,FALSE); /* test for unused or undefined
dvander@27	426	* functions and variables */
dvander@27	427	if (!entry)
dvander@27	428	error(13); /* no entry point (no public functions) */
dvander@27	429
dvander@27	430	cleanup:
dvander@27	431	if (inpf!=NULL) /* main source file is not closed, do it now */
dvander@27	432	pc_closesrc(inpf);
dvander@27	433	/* write the binary file (the file is already open) */
dvander@27	434	if (!(sc_asmfile \|\| sc_listing) && errnum==0 && jmpcode==0) {
dvander@27	435	assert(binf!=NULL);
dvander@27	436	pc_resetasm(outf); /* flush and loop back, for reading */
dvander@27	437	#if !defined SC_LIGHT
dvander@27	438	hdrsize=
dvander@27	439	#endif
dvander@27	440	assemble(binf,outf); /* assembler file is now input */
dvander@27	441	} /* if */
dvander@27	442	if (outf!=NULL) {
dvander@27	443	pc_closeasm(outf,!(sc_asmfile \|\| sc_listing));
dvander@27	444	outf=NULL;
dvander@27	445	} /* if */
dvander@27	446	if (binf!=NULL) {
dvander@27	447	pc_closebin(binf,errnum!=0);
dvander@27	448	binf=NULL;
dvander@27	449	} /* if */
dvander@27	450
dvander@27	451	#if !defined SC_LIGHT
dvander@27	452	if (errnum==0 && strlen(errfname)==0) {
dvander@27	453	int recursion;
dvander@27	454	long stacksize=max_stacksize(&glbtab,&recursion);
dvander@27	455	int flag_exceed=0;
dvander@27	456	if (pc_amxlimit>0) {
dvander@27	457	long totalsize=hdrsize+code_idx;
dvander@27	458	if (pc_amxram==0)
dvander@27	459	totalsize+=(glb_declared+pc_stksize)*sizeof(cell);
dvander@27	460	if (totalsize>=pc_amxlimit)
dvander@27	461	flag_exceed=1;
dvander@27	462	} /* if */
dvander@27	463	if (pc_amxram>0 && (glb_declared+pc_stksize)*sizeof(cell)>=(unsigned long)pc_amxram)
dvander@27	464	flag_exceed=1;
dvander@27	465	if (!norun && (sc_debug & sSYMBOLIC)!=0 \|\| verbosity>=2 \|\| stacksize+32>=(long)pc_stksize \|\| flag_exceed) {
dvander@27	466	pc_printf("Header size: %8ld bytes\n", (long)hdrsize);
dvander@27	467	pc_printf("Code size: %8ld bytes\n", (long)code_idx);
dvander@27	468	pc_printf("Data size: %8ld bytes\n", (long)glb_declared*sizeof(cell));
dvander@27	469	pc_printf("Stack/heap size: %8ld bytes; ", (long)pc_stksize*sizeof(cell));
dvander@27	470	pc_printf("estimated max. usage");
dvander@27	471	if (recursion)
faluco@62	472	pc_printf(": unknown, due to recursion\n");
dvander@27	473	else if ((pc_memflags & suSLEEP_INSTR)!=0)
faluco@62	474	pc_printf(": unknown, due to the \"sleep\" instruction\n");
dvander@27	475	else
dvander@27	476	pc_printf("=%ld cells (%ld bytes)\n",stacksize,stacksize*sizeof(cell));
dvander@27	477	pc_printf("Total requirements:%8ld bytes\n", (long)hdrsize+(long)code_idx+(long)glb_declaredsizeof(cell)+(long)pc_stksizesizeof(cell));
dvander@27	478	} /* if */
dvander@27	479	if (flag_exceed)
dvander@27	480	error(106,pc_amxlimit+pc_amxram); /* this causes a jump back to label "cleanup" */
dvander@27	481	} /* if */
dvander@27	482	#endif
dvander@27	483
dvander@27	484	if (inpfname!=NULL) {
dvander@27	485	if (get_sourcefile(1)!=NULL)
dvander@27	486	remove(inpfname); /* the "input file" was in fact a temporary file */
dvander@27	487	free(inpfname);
dvander@27	488	} /* if */
dvander@27	489	if (litq!=NULL)
dvander@27	490	free(litq);
dvander@27	491	phopt_cleanup();
dvander@27	492	stgbuffer_cleanup();
dvander@27	493	clearstk();
dvander@27	494	assert(jmpcode!=0 \|\| loctab.next==NULL);/* on normal flow, local symbols
dvander@27	495	* should already have been deleted */
dvander@27	496	delete_symbols(&loctab,0,TRUE,TRUE); /* delete local variables if not yet
dvander@27	497	* done (i.e. on a fatal error) */
dvander@27	498	delete_symbols(&glbtab,0,TRUE,TRUE);
dvander@27	499	delete_consttable(&tagname_tab);
dvander@27	500	delete_consttable(&libname_tab);
dvander@27	501	delete_consttable(&sc_automaton_tab);
dvander@27	502	delete_consttable(&sc_state_tab);
dvander@27	503	state_deletetable();
dvander@27	504	delete_aliastable();
dvander@27	505	delete_pathtable();
dvander@27	506	delete_sourcefiletable();
dvander@27	507	delete_dbgstringtable();
dvander@175	508	funcenums_free();
dvander@175	509	pstructs_free();
dvander@27	510	#if !defined NO_DEFINE
dvander@27	511	delete_substtable();
dvander@27	512	#endif
dvander@27	513	#if !defined SC_LIGHT
dvander@27	514	delete_docstringtable();
dvander@27	515	if (sc_documentation!=NULL)
dvander@27	516	free(sc_documentation);
dvander@27	517	#endif
dvander@27	518	delete_autolisttable();
dvander@27	519	if (errnum!=0) {
dvander@27	520	if (strlen(errfname)==0)
dvander@27	521	pc_printf("\n%d Error%s.\n",errnum,(errnum>1) ? "s" : "");
dvander@27	522	retcode=1;
dvander@27	523	} else if (warnnum!=0){
dvander@27	524	if (strlen(errfname)==0)
dvander@27	525	pc_printf("\n%d Warning%s.\n",warnnum,(warnnum>1) ? "s" : "");
dvander@27	526	retcode=0; /* use "0", so that MAKE and similar tools continue */
dvander@27	527	} else {
dvander@27	528	retcode=jmpcode;
dvander@27	529	if (retcode==0 && verbosity>=2)
dvander@27	530	pc_printf("\nDone.\n");
dvander@27	531	} /* if */
dvander@27	532	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	533	if (IsWindow(hwndFinish))
dvander@27	534	PostMessageA(hwndFinish,RegisterWindowMessageA("PawnNotify"),retcode,0L);
dvander@27	535	#endif
dvander@27	536	#if defined FORTIFY
dvander@27	537	Fortify_ListAllMemory();
dvander@27	538	#endif
dvander@27	539	return retcode;
dvander@27	540	}
dvander@27	541
dvander@27	542	#if defined __cplusplus
dvander@27	543	extern "C"
dvander@27	544	#endif
dvander@27	545	int pc_addconstant(char *name,cell value,int tag)
dvander@27	546	{
dvander@27	547	errorset(sFORCESET,0); /* make sure error engine is silenced */
dvander@27	548	sc_status=statIDLE;
dvander@27	549	add_constant(name,value,sGLOBAL,tag);
dvander@27	550	return 1;
dvander@27	551	}
dvander@27	552
dvander@27	553	static void inst_datetime_defines(void)
dvander@27	554	{
dvander@27	555	char date[64];
dvander@27	556	char ltime[64];
dvander@27	557	time_t td;
dvander@27	558	struct tm *curtime;
dvander@27	559
dvander@27	560	time(&td);
dvander@27	561	curtime = localtime(&td);
dvander@27	562	strftime(date, 31, "\"%m/%d%Y\"", curtime);
dvander@27	563	strftime(ltime, 31, "\"%H:%M:%S\"", curtime);
dvander@27	564
dvander@27	565	insert_subst("__DATE__", date, 8);
dvander@27	566	insert_subst("__TIME__", ltime, 8);
dvander@27	567	}
dvander@27	568
dvander@27	569	#if defined __cplusplus
dvander@27	570	extern "C"
dvander@27	571	#endif
dvander@27	572	int pc_addtag(char *name)
dvander@27	573	{
dvander@27	574	cell val;
dvander@27	575	constvalue *ptr;
dvander@27	576	int last,tag;
dvander@27	577
dvander@27	578	if (name==NULL) {
dvander@27	579	/* no tagname was given, check for one */
dvander@27	580	if (lex(&val,&name)!=tLABEL) {
dvander@27	581	lexpush();
dvander@27	582	return 0; /* untagged */
dvander@27	583	} /* if */
dvander@27	584	} /* if */
dvander@27	585
dvander@27	586	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@27	587	last=0;
dvander@27	588	ptr=tagname_tab.next;
dvander@27	589	while (ptr!=NULL) {
dvander@27	590	tag=(int)(ptr->value & TAGMASK);
dvander@27	591	if (strcmp(name,ptr->name)==0)
dvander@27	592	return tag; /* tagname is known, return its sequence number */
dvander@27	593	tag &= (int)~FIXEDTAG;
dvander@132	594	tag &= (int)~FUNCTAG;
dvander@27	595	if (tag>last)
dvander@27	596	last=tag;
dvander@27	597	ptr=ptr->next;
dvander@27	598	} /* while */
dvander@27	599
dvander@27	600	/* tagname currently unknown, add it */
dvander@27	601	tag=last+1; /* guaranteed not to exist already */
dvander@27	602	if (isupper(*name))
dvander@27	603	tag \|= (int)FIXEDTAG;
dvander@27	604	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@27	605	return tag;
dvander@27	606	}
dvander@27	607
dvander@132	608	int pc_addfunctag(char *name)
dvander@132	609	{
dvander@132	610	cell val;
dvander@132	611	constvalue *ptr;
dvander@132	612	int last,tag;
dvander@132	613
dvander@132	614	if (name==NULL) {
dvander@132	615	/* no tagname was given, check for one */
dvander@132	616	if (lex(&val,&name)!=tLABEL) {
dvander@132	617	lexpush();
dvander@132	618	return 0; /* untagged */
dvander@132	619	} /* if */
dvander@132	620	} /* if */
dvander@132	621
dvander@132	622	assert(strchr(name,':')==NULL); /* colon should already have been stripped */
dvander@132	623	last=0;
dvander@132	624	ptr=tagname_tab.next;
dvander@132	625	while (ptr!=NULL) {
dvander@132	626	tag=(int)(ptr->value & TAGMASK);
dvander@132	627	if (strcmp(name,ptr->name)==0)
dvander@132	628	return tag; /* tagname is known, return its sequence number */
dvander@132	629	tag &= (int)~FIXEDTAG;
dvander@132	630	tag &= (int)~FUNCTAG;
dvander@132	631	if (tag>last)
dvander@132	632	last=tag;
dvander@132	633	ptr=ptr->next;
dvander@132	634	} /* while */
dvander@132	635
dvander@132	636	/* tagname currently unknown, add it */
dvander@132	637	tag=last+1; /* guaranteed not to exist already */
dvander@132	638	if (isupper(*name))
dvander@132	639	tag \|= (int)FIXEDTAG;
dvander@132	640	tag \|= (int)FUNCTAG;
dvander@132	641	append_constval(&tagname_tab,name,(cell)tag,0);
dvander@132	642	return tag;
dvander@132	643	}
dvander@132	644
dvander@27	645	static void resetglobals(void)
dvander@27	646	{
dvander@27	647	/* reset the subset of global variables that is modified by the first pass */
dvander@27	648	curfunc=NULL; /* pointer to current function */
dvander@27	649	lastst=0; /* last executed statement type */
dvander@27	650	nestlevel=0; /* number of active (open) compound statements */
dvander@27	651	rettype=0; /* the type that a "return" expression should have */
dvander@27	652	litidx=0; /* index to literal table */
dvander@27	653	stgidx=0; /* index to the staging buffer */
dvander@27	654	sc_labnum=0; /* top value of (internal) labels */
dvander@27	655	staging=0; /* true if staging output */
dvander@27	656	declared=0; /* number of local cells declared */
dvander@27	657	glb_declared=0; /* number of global cells declared */
dvander@27	658	code_idx=0; /* number of bytes with generated code */
dvander@27	659	ntv_funcid=0; /* incremental number of native function */
dvander@27	660	curseg=0; /* 1 if currently parsing CODE, 2 if parsing DATA */
dvander@27	661	freading=FALSE; /* no input file ready yet */
dvander@27	662	fline=0; /* the line number in the current file */
dvander@27	663	fnumber=0; /* the file number in the file table (debugging) */
dvander@27	664	fcurrent=0; /* current file being processed (debugging) */
dvander@27	665	sc_intest=FALSE; /* true if inside a test */
dvander@27	666	sideeffect=0; /* true if an expression causes a side-effect */
dvander@27	667	stmtindent=0; /* current indent of the statement */
dvander@27	668	indent_nowarn=FALSE; /* do not skip warning "217 loose indentation" */
dvander@27	669	sc_allowtags=TRUE; /* allow/detect tagnames */
dvander@27	670	sc_status=statIDLE;
dvander@27	671	sc_allowproccall=FALSE;
dvander@27	672	pc_addlibtable=TRUE; /* by default, add a "library table" to the output file */
dvander@27	673	sc_alignnext=FALSE;
dvander@27	674	pc_docexpr=FALSE;
ds@52	675	pc_deprecate=NULL;
dvander@27	676	sc_curstates=0;
dvander@27	677	pc_memflags=0;
dvander@27	678	}
dvander@27	679
dvander@27	680	static void initglobals(void)
dvander@27	681	{
dvander@27	682	resetglobals();
dvander@27	683
dvander@27	684	sc_asmfile=FALSE; /* do not create .ASM file */
dvander@27	685	sc_listing=FALSE; /* do not create .LST file */
dvander@27	686	skipinput=0; /* number of lines to skip from the first input file */
dvander@27	687	sc_ctrlchar=CTRL_CHAR;/* the escape character */
dvander@27	688	litmax=sDEF_LITMAX; /* current size of the literal table */
dvander@27	689	errnum=0; /* number of errors */
dvander@27	690	warnnum=0; /* number of warnings */
dvander@27	691	optproccall=FALSE; /* sourcemod: do not support "procedure call" */
dvander@27	692	verbosity=1; /* verbosity level, no copyright banner */
dvander@27	693	sc_debug=sCHKBOUNDS\|sSYMBOLIC; /* sourcemod: full debug stuff */
dvander@27	694	pc_optimize=sOPTIMIZE_DEFAULT; /* sourcemod: full optimization */
dvander@151	695	sc_packstr=TRUE; /* strings are packed by default */
dvander@27	696	sc_compress=FALSE; /* always disable compact encoding! */
dvander@27	697	sc_needsemicolon=FALSE;/* semicolon required to terminate expressions? */
dvander@27	698	sc_dataalign=sizeof(cell);
dvander@27	699	pc_stksize=sDEF_AMXSTACK;/* default stack size */
dvander@27	700	pc_amxlimit=0; /* no limit on size of the abstract machine */
dvander@27	701	pc_amxram=0; /* no limit on data size of the abstract machine */
dvander@27	702	sc_tabsize=8; /* assume a TAB is 8 spaces */
dvander@27	703	sc_rationaltag=0; /* assume no support for rational numbers */
dvander@27	704	rational_digits=0; /* number of fractional digits */
dvander@27	705
dvander@27	706	outfname[0]='\0'; /* output file name */
dvander@27	707	errfname[0]='\0'; /* error file name */
dvander@27	708	inpf=NULL; /* file read from */
dvander@27	709	inpfname=NULL; /* pointer to name of the file currently read from */
dvander@27	710	outf=NULL; /* file written to */
dvander@27	711	litq=NULL; /* the literal queue */
dvander@27	712	glbtab.next=NULL; /* clear global variables/constants table */
dvander@27	713	loctab.next=NULL; /* " local " / " " */
dvander@27	714	tagname_tab.next=NULL;/* tagname table */
dvander@27	715	libname_tab.next=NULL;/* library table (#pragma library "..." syntax) */
dvander@27	716
dvander@27	717	pline[0]='\0'; /* the line read from the input file */
dvander@27	718	lptr=NULL; /* points to the current position in "pline" */
dvander@27	719	curlibrary=NULL; /* current library */
dvander@27	720	inpf_org=NULL; /* main source file */
dvander@27	721
dvander@27	722	wqptr=wq; /* initialize while queue pointer */
dvander@27	723
dvander@27	724	#if !defined SC_LIGHT
dvander@27	725	sc_documentation=NULL;
dvander@27	726	sc_makereport=FALSE; /* do not generate a cross-reference report */
dvander@27	727	#endif
dvander@27	728	}
dvander@27	729
dvander@27	730	static char get_extension(char filename)
dvander@27	731	{
dvander@27	732	char *ptr;
dvander@27	733
dvander@27	734	assert(filename!=NULL);
dvander@27	735	ptr=strrchr(filename,'.');
dvander@27	736	if (ptr!=NULL) {
dvander@27	737	/* ignore extension on a directory or at the start of the filename */
dvander@27	738	if (strchr(ptr,DIRSEP_CHAR)!=NULL \|\| ptr==filename \|\| *(ptr-1)==DIRSEP_CHAR)
dvander@27	739	ptr=NULL;
dvander@27	740	} /* if */
dvander@27	741	return ptr;
dvander@27	742	}
dvander@27	743
dvander@27	744	/* set_extension
dvander@27	745	* Set the default extension, or force an extension. To erase the
dvander@27	746	* extension of a filename, set "extension" to an empty string.
dvander@27	747	*/
dvander@27	748	SC_FUNC void set_extension(char filename,char extension,int force)
dvander@27	749	{
dvander@27	750	char *ptr;
dvander@27	751
dvander@27	752	assert(extension!=NULL && (extension=='\0' \|\| extension=='.'));
dvander@27	753	assert(filename!=NULL);
dvander@27	754	ptr=get_extension(filename);
dvander@27	755	if (force && ptr!=NULL)
dvander@27	756	ptr='\0'; / set zero terminator at the position of the period */
dvander@27	757	if (force \|\| ptr==NULL)
dvander@27	758	strcat(filename,extension);
dvander@27	759	}
dvander@27	760
dvander@27	761	static const char option_value(const char optptr)
dvander@27	762	{
dvander@27	763	return ((optptr+1)=='=' \|\| (optptr+1)==':') ? optptr+2 : optptr+1;
dvander@27	764	}
dvander@27	765
dvander@27	766	static int toggle_option(const char *optptr, int option)
dvander@27	767	{
dvander@27	768	switch (*option_value(optptr)) {
dvander@27	769	case '\0':
dvander@27	770	option=!option;
dvander@27	771	break;
dvander@27	772	case '-':
dvander@27	773	option=FALSE;
dvander@27	774	break;
dvander@27	775	case '+':
dvander@27	776	option=TRUE;
dvander@27	777	break;
dvander@27	778	default:
dvander@27	779	about();
dvander@27	780	} /* switch */
dvander@27	781	return option;
dvander@27	782	}
dvander@27	783
dvander@27	784	/* Parsing command line options is indirectly recursive: parseoptions()
dvander@27	785	* calls parserespf() to handle options in a a response file and
dvander@27	786	* parserespf() calls parseoptions() at its turn after having created
dvander@27	787	* an "option list" from the contents of the file.
dvander@27	788	*/
dvander@27	789	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	790	char rname, char codepage);
dvander@27	791
dvander@27	792	static void parseoptions(int argc,char *argv,char oname,char ename,char pname,
dvander@27	793	char rname, char codepage)
dvander@27	794	{
dvander@27	795	char str[_MAX_PATH],*name;
dvander@27	796	const char *ptr;
dvander@27	797	int arg,i,isoption;
dvander@27	798
dvander@27	799	for (arg=1; arg<argc; arg++) {
dvander@27	800	#if DIRSEP_CHAR=='/'
dvander@27	801	isoption= argv[arg][0]=='-';
dvander@27	802	#else
dvander@27	803	isoption= argv[arg][0]=='/' \|\| argv[arg][0]=='-';
dvander@27	804	#endif
dvander@27	805	if (isoption) {
dvander@27	806	ptr=&argv[arg][1];
dvander@27	807	switch (*ptr) {
dvander@27	808	case 'A':
dvander@27	809	i=atoi(option_value(ptr));
dvander@27	810	if ((i % sizeof(cell))==0)
dvander@27	811	sc_dataalign=i;
dvander@27	812	else
dvander@27	813	about();
dvander@27	814	break;
dvander@27	815	case 'a':
dvander@27	816	if (*(ptr+1)!='\0')
dvander@27	817	about();
dvander@27	818	sc_asmfile=TRUE; /* skip last pass of making binary file */
dvander@27	819	if (verbosity>1)
dvander@27	820	verbosity=1;
dvander@27	821	break;
dvander@27	822	#if 0 /* not allowed in SourceMod */
dvander@27	823	case 'C':
dvander@27	824	#if AMX_COMPACTMARGIN > 2
dvander@27	825	sc_compress=toggle_option(ptr,sc_compress);
dvander@27	826	#else
dvander@27	827	about();
dvander@27	828	#endif
dvander@27	829	break;
dvander@27	830	#endif
dvander@27	831	case 'c':
dvander@27	832	strlcpy(codepage,option_value(ptr),MAXCODEPAGE); /* set name of codepage */
dvander@27	833	break;
dvander@27	834	#if defined dos_setdrive
dvander@27	835	case 'D': /* set active directory */
dvander@27	836	ptr=option_value(ptr);
dvander@27	837	if (ptr[1]==':')
dvander@27	838	dos_setdrive(toupper(ptr)-'A'+1); / set active drive */
dvander@27	839	chdir(ptr);
dvander@27	840	break;
dvander@27	841	#endif
dvander@27	842	#if 0 /* not allowed to change for SourceMod */
dvander@27	843	case 'd':
dvander@27	844	switch (*option_value(ptr)) {
dvander@27	845	case '0':
dvander@27	846	sc_debug=0;
dvander@27	847	break;
dvander@27	848	case '1':
dvander@27	849	sc_debug=sCHKBOUNDS; /* assertions and bounds checking */
dvander@27	850	break;
dvander@27	851	case '2':
dvander@27	852	sc_debug=sCHKBOUNDS \| sSYMBOLIC; /* also symbolic info */
dvander@27	853	break;
dvander@27	854	case '3':
dvander@27	855	sc_debug=sCHKBOUNDS \| sSYMBOLIC;
dvander@27	856	pc_optimize=sOPTIMIZE_NONE;
dvander@27	857	/* also avoid peephole optimization */
dvander@27	858	break;
dvander@27	859	default:
dvander@27	860	about();
dvander@27	861	} /* switch */
dvander@27	862	break;
dvander@27	863	#endif
dvander@27	864	case 'e':
dvander@27	865	strlcpy(ename,option_value(ptr),_MAX_PATH); /* set name of error file */
dvander@27	866	break;
dvander@27	867	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	868	case 'H':
dvander@27	869	hwndFinish=(HWND)atoi(option_value(ptr));
dvander@27	870	if (!IsWindow(hwndFinish))
dvander@27	871	hwndFinish=(HWND)0;
dvander@27	872	break;
dvander@27	873	#endif
dvander@27	874	case 'i':
dvander@27	875	strlcpy(str,option_value(ptr),sizeof str); /* set name of include directory */
dvander@27	876	i=strlen(str);
dvander@27	877	if (i>0) {
dvander@27	878	if (str[i-1]!=DIRSEP_CHAR) {
dvander@27	879	str[i]=DIRSEP_CHAR;
dvander@27	880	str[i+1]='\0';
dvander@27	881	} /* if */
dvander@27	882	insert_path(str);
dvander@27	883	} /* if */
dvander@27	884	break;
dvander@27	885	case 'l':
dvander@27	886	if (*(ptr+1)!='\0')
dvander@27	887	about();
dvander@27	888	sc_listing=TRUE; /* skip second pass & code generation */
dvander@27	889	break;
dvander@27	890	case 'o':
dvander@27	891	strlcpy(oname,option_value(ptr),_MAX_PATH); /* set name of (binary) output file */
dvander@27	892	break;
dvander@27	893	case 'O':
dvander@27	894	pc_optimize=*option_value(ptr) - '0';
dvander@27	895	if (pc_optimize<sOPTIMIZE_NONE \|\| pc_optimize>=sOPTIMIZE_NUMBER \|\| pc_optimize==sOPTIMIZE_NOMACRO)
dvander@27	896	about();
dvander@27	897	break;
dvander@27	898	case 'p':
dvander@27	899	strlcpy(pname,option_value(ptr),_MAX_PATH); /* set name of implicit include file */
dvander@27	900	break;
dvander@27	901	#if !defined SC_LIGHT
dvander@27	902	case 'r':
dvander@27	903	strlcpy(rname,option_value(ptr),_MAX_PATH); /* set name of report file */
dvander@27	904	sc_makereport=TRUE;
dvander@27	905	if (strlen(rname)>0) {
dvander@27	906	set_extension(rname,".xml",FALSE);
dvander@27	907	} else if ((name=get_sourcefile(0))!=NULL) {
dvander@27	908	assert(strlen(rname)==0);
dvander@27	909	assert(strlen(name)<_MAX_PATH);
dvander@27	910	if ((ptr=strrchr(name,DIRSEP_CHAR))!=NULL)
dvander@27	911	ptr++; /* strip path */
dvander@27	912	else
dvander@27	913	ptr=name;
dvander@27	914	assert(strlen(ptr)<_MAX_PATH);
dvander@27	915	strcpy(rname,ptr);
dvander@27	916	set_extension(rname,".xml",TRUE);
dvander@27	917	} /* if */
dvander@27	918	break;
dvander@27	919	#endif
dvander@27	920	case 'S':
dvander@27	921	i=atoi(option_value(ptr));
dvander@27	922	if (i>32)
dvander@27	923	pc_stksize=(cell)i; /* stack size has minimum size */
dvander@27	924	else
dvander@27	925	about();
dvander@27	926	break;
dvander@27	927	case 's':
dvander@27	928	skipinput=atoi(option_value(ptr));
dvander@27	929	break;
dvander@27	930	case 't':
dvander@27	931	sc_tabsize=atoi(option_value(ptr));
dvander@27	932	break;
dvander@27	933	case 'v':
dvander@27	934	verbosity= isdigit(*option_value(ptr)) ? atoi(option_value(ptr)) : 2;
dvander@27	935	if (sc_asmfile && verbosity>1)
dvander@27	936	verbosity=1;
dvander@27	937	break;
dvander@27	938	case 'w':
dvander@27	939	i=(int)strtol(option_value(ptr),(char **)&ptr,10);
dvander@27	940	if (*ptr=='-')
dvander@27	941	pc_enablewarning(i,0);
dvander@27	942	else if (*ptr=='+')
dvander@27	943	pc_enablewarning(i,1);
dvander@27	944	else if (*ptr=='\0')
dvander@27	945	pc_enablewarning(i,2);
dvander@27	946	break;
dvander@27	947	case 'X':
dvander@27	948	if (*(ptr+1)=='D') {
dvander@27	949	i=atoi(option_value(ptr+1));
dvander@27	950	if (i>64)
dvander@27	951	pc_amxram=(cell)i; /* abstract machine data/stack has minimum size */
dvander@27	952	else
dvander@27	953	about();
dvander@27	954	} else {
dvander@27	955	i=atoi(option_value(ptr));
dvander@27	956	if (i>64)
dvander@27	957	pc_amxlimit=(cell)i;/* abstract machine has minimum size */
dvander@27	958	else
dvander@27	959	about();
dvander@27	960	} /* if */
dvander@27	961	break;
dvander@27	962	case '\\': /* use \ instead for escape characters */
dvander@27	963	sc_ctrlchar='\\';
dvander@27	964	break;
dvander@27	965	case '^': /* use ^ instead for escape characters */
dvander@27	966	sc_ctrlchar='^';
dvander@27	967	break;
dvander@27	968	case ';':
dvander@27	969	sc_needsemicolon=toggle_option(ptr,sc_needsemicolon);
dvander@27	970	break;
dvander@27	971	#if 0 /* not allowed to change in SourceMod */
dvander@27	972	case '(':
dvander@27	973	optproccall=!toggle_option(ptr,!optproccall);
dvander@27	974	break;
dvander@27	975	#endif
dvander@27	976	default: /* wrong option */
dvander@27	977	about();
dvander@27	978	} /* switch */
dvander@27	979	} else if (argv[arg][0]=='@') {
dvander@27	980	#if !defined SC_LIGHT
dvander@27	981	parserespf(&argv[arg][1],oname,ename,pname,rname,codepage);
dvander@27	982	#endif
dvander@27	983	} else if ((ptr=strchr(argv[arg],'='))!=NULL) {
dvander@27	984	i=(int)(ptr-argv[arg]);
dvander@27	985	if (i>sNAMEMAX) {
dvander@27	986	i=sNAMEMAX;
dvander@27	987	error(200,argv[arg],sNAMEMAX); /* symbol too long, truncated to sNAMEMAX chars */
dvander@27	988	} /* if */
dvander@27	989	strlcpy(str,argv[arg],i+1); /* str holds symbol name */
dvander@27	990	i=atoi(ptr+1);
dvander@27	991	add_constant(str,i,sGLOBAL,0);
dvander@27	992	} else {
dvander@27	993	strlcpy(str,argv[arg],sizeof(str)-5); /* -5 because default extension is ".psrc" */
dvander@27	994	set_extension(str,".psrc",FALSE);
dvander@27	995	insert_sourcefile(str);
dvander@27	996	/* The output name is the first input name with a different extension,
dvander@27	997	* but it is stored in a different directory
dvander@27	998	*/
dvander@27	999	if (strlen(oname)==0) {
dvander@27	1000	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1001	ptr++; /* strip path */
dvander@27	1002	else
dvander@27	1003	ptr=str;
dvander@27	1004	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1005	strcpy(oname,ptr);
dvander@27	1006	} /* if */
dvander@27	1007	set_extension(oname,".asm",TRUE);
dvander@27	1008	#if !defined SC_LIGHT
dvander@27	1009	if (sc_makereport && strlen(rname)==0) {
dvander@27	1010	if ((ptr=strrchr(str,DIRSEP_CHAR))!=NULL)
dvander@27	1011	ptr++; /* strip path */
dvander@27	1012	else
dvander@27	1013	ptr=str;
dvander@27	1014	assert(strlen(ptr)<_MAX_PATH);
dvander@27	1015	strcpy(rname,ptr);
dvander@27	1016	set_extension(rname,".xml",TRUE);
dvander@27	1017	} /* if */
dvander@27	1018	#endif
dvander@27	1019	} /* if */
dvander@27	1020	} /* for */
dvander@27	1021	}
dvander@27	1022
dvander@27	1023	#if !defined SC_LIGHT
dvander@27	1024	static void parserespf(char filename,char oname,char ename,char pname,
dvander@27	1025	char rname,char codepage)
dvander@27	1026	{
dvander@27	1027	#define MAX_OPTIONS 100
dvander@27	1028	FILE *fp;
dvander@27	1029	char string, ptr, **argv;
dvander@27	1030	int argc;
dvander@27	1031	long size;
dvander@27	1032
dvander@27	1033	if ((fp=fopen(filename,"r"))==NULL)
dvander@27	1034	error(100,filename); /* error reading input file */
dvander@27	1035	/* load the complete file into memory */
dvander@27	1036	fseek(fp,0L,SEEK_END);
dvander@27	1037	size=ftell(fp);
dvander@27	1038	fseek(fp,0L,SEEK_SET);
dvander@27	1039	assert(size<INT_MAX);
dvander@27	1040	if ((string=(char *)malloc((int)size+1))==NULL)
dvander@27	1041	error(103); /* insufficient memory */
dvander@27	1042	/* fill with zeros; in MS-DOS, fread() may collapse CR/LF pairs to
dvander@27	1043	* a single '\n', so the string size may be smaller than the file
dvander@27	1044	* size. */
dvander@27	1045	memset(string,0,(int)size+1);
dvander@27	1046	fread(string,1,(int)size,fp);
dvander@27	1047	fclose(fp);
dvander@27	1048	/* allocate table for option pointers */
dvander@27	1049	if ((argv=(char *)malloc(MAX_OPTIONSsizeof(char*)))==NULL)
dvander@27	1050	error(103); /* insufficient memory */
dvander@27	1051	/* fill the options table */
dvander@27	1052	ptr=strtok(string," \t\r\n");
dvander@27	1053	for (argc=1; argc<MAX_OPTIONS && ptr!=NULL; argc++) {
dvander@27	1054	/* note: the routine skips argv[0], for compatibility with main() */
dvander@27	1055	argv[argc]=ptr;
dvander@27	1056	ptr=strtok(NULL," \t\r\n");
dvander@27	1057	} /* for */
dvander@27	1058	if (ptr!=NULL)
dvander@27	1059	error(102,"option table"); /* table overflow */
dvander@27	1060	/* parse the option table */
dvander@27	1061	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1062	/* free allocated memory */
dvander@27	1063	free(argv);
dvander@27	1064	free(string);
dvander@27	1065	}
dvander@27	1066	#endif
dvander@27	1067
dvander@27	1068	static void setopt(int argc,char *argv,char oname,char ename,char pname,
dvander@27	1069	char rname,char codepage)
dvander@27	1070	{
dvander@27	1071	delete_sourcefiletable(); /* make sure it is empty */
dvander@27	1072	*oname='\0';
dvander@27	1073	*ename='\0';
dvander@27	1074	*pname='\0';
dvander@27	1075	*rname='\0';
dvander@27	1076	*codepage='\0';
dvander@27	1077	strcpy(pname,sDEF_PREFIX);
dvander@27	1078
dvander@27	1079	#if 0 /* needed to test with BoundsChecker for DOS (it does not pass
dvander@27	1080	* through arguments) */
dvander@27	1081	insert_sourcefile("test.p");
dvander@27	1082	strcpy(oname,"test.asm");
dvander@27	1083	#endif
dvander@27	1084
dvander@27	1085	#if !defined SC_LIGHT
dvander@27	1086	/* first parse a "config" file with default options */
dvander@27	1087	if (argv[0]!=NULL) {
dvander@27	1088	char cfgfile[_MAX_PATH];
dvander@27	1089	char *ext;
dvander@27	1090	strcpy(cfgfile,argv[0]);
dvander@27	1091	if ((ext=strrchr(cfgfile,DIRSEP_CHAR))!=NULL) {
dvander@27	1092	(ext+1)='\0'; / strip the program filename */
dvander@27	1093	strcat(cfgfile,"pawn.cfg");
dvander@27	1094	} else {
dvander@27	1095	strcpy(cfgfile,"pawn.cfg");
dvander@27	1096	} /* if */
dvander@27	1097	if (access(cfgfile,4)==0)
dvander@27	1098	parserespf(cfgfile,oname,ename,pname,rname,codepage);
dvander@27	1099	} /* if */
dvander@27	1100	#endif
dvander@27	1101	parseoptions(argc,argv,oname,ename,pname,rname,codepage);
dvander@27	1102	if (get_sourcefile(0)==NULL)
dvander@27	1103	about();
dvander@27	1104	}
dvander@27	1105
dvander@27	1106	#if defined __BORLANDC__ \|\| defined __WATCOMC__
dvander@27	1107	#pragma argsused
dvander@27	1108	#endif
dvander@27	1109	static void setconfig(char *root)
dvander@27	1110	{
dvander@27	1111	#if defined macintosh
dvander@27	1112	insert_path(":include:");
dvander@27	1113	#else
dvander@27	1114	char path[_MAX_PATH];
dvander@27	1115	char ptr,base;
dvander@27	1116	int len;
dvander@27	1117
dvander@27	1118	/* add the default "include" directory */
dvander@27	1119	#if defined __WIN32__ \|\| defined _WIN32
dvander@27	1120	GetModuleFileNameA(NULL,path,_MAX_PATH);
dvander@27	1121	#elif defined LINUX \|\| defined __FreeBSD__ \|\| defined __OpenBSD__
dvander@27	1122	/* see www.autopackage.org for the BinReloc module */
dvander@27	1123	br_init_lib(NULL);
dvander@27	1124	ptr=br_find_exe("spcomp");
dvander@27	1125	strlcpy(path,ptr,sizeof path);
dvander@27	1126	free(ptr);
dvander@27	1127	#else
dvander@27	1128	if (root!=NULL)
dvander@27	1129	strlcpy(path,root,sizeof path); /* path + filename (hopefully) */
dvander@27	1130	#endif
dvander@27	1131	#if defined __MSDOS__
dvander@27	1132	/* strip the options (appended to the path + filename) */
dvander@27	1133	if ((ptr=strpbrk(path," \t/"))!=NULL)
dvander@27	1134	*ptr='\0';
dvander@27	1135	#endif
dvander@27	1136	/* terminate just behind last \ or : */
dvander@27	1137	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL \|\| (ptr=strchr(path,':'))!=NULL) {
dvander@27	1138	/* If there is no "\" or ":", the string probably does not contain the
dvander@27	1139	* path; so we just don't add it to the list in that case
dvander@27	1140	*/
dvander@27	1141	*(ptr+1)='\0';
dvander@27	1142	base=ptr;
dvander@27	1143	strcat(path,"include");
dvander@27	1144	len=strlen(path);
dvander@27	1145	path[len]=DIRSEP_CHAR;
dvander@27	1146	path[len+1]='\0';
dvander@27	1147	/* see if it exists */
dvander@27	1148	if (access(path,0)!=0 && *base==DIRSEP_CHAR) {
dvander@27	1149	/* There is no "include" directory below the directory where the compiler
dvander@27	1150	* is found. This typically means that the compiler is in a "bin" sub-directory
dvander@27	1151	* and the "include" is below the parent. So find the parent...
dvander@27	1152	*/
dvander@27	1153	*base='\0';
dvander@27	1154	if ((ptr=strrchr(path,DIRSEP_CHAR))!=NULL) {
dvander@27	1155	*(ptr+1)='\0';
dvander@27	1156	strcat(path,"include");
dvander@27	1157	len=strlen(path);
dvander@27	1158	path[len]=DIRSEP_CHAR;
dvander@27	1159	path[len+1]='\0';
dvander@27	1160	} else {
dvander@27	1161	*base=DIRSEP_CHAR;
dvander@27	1162	} /* if */
dvander@27	1163	} /* if */
dvander@27	1164	insert_path(path);
dvander@27	1165	/* same for the codepage root */
dvander@27	1166	#if !defined NO_CODEPAGE
dvander@27	1167	*ptr='\0';
dvander@27	1168	if (!cp_path(path,"codepage"))
dvander@27	1169	error(109,path); /* codepage path */
dvander@27	1170	#endif
dvander@27	1171	/* also copy the root path (for the XML documentation) */
dvander@27	1172	#if !defined SC_LIGHT
dvander@27	1173	*ptr='\0';
dvander@27	1174	strcpy(sc_rootpath,path);
dvander@27	1175	#endif
dvander@27	1176	} /* if */
dvander@27	1177	#endif /* macintosh */
dvander@27	1178	}
dvander@27	1179
dvander@27	1180	static void setcaption(void)
dvander@27	1181	{
dvander@27	1182	pc_printf("SourcePawn Compiler " SMC_VERSTRING "\n");
dvander@27	1183	pc_printf("Copyright (c) 1997-2006, ITB CompuPhase, (C)2004-2006 AlliedModders, LLC\n\n");
dvander@27	1184	}
dvander@27	1185
dvander@27	1186	static void about(void)
dvander@27	1187	{
dvander@27	1188	if (strlen(errfname)==0) {
dvander@27	1189	setcaption();
dvander@27	1190	pc_printf("Usage: pawncc <filename> [filename...] [options]\n\n");
dvander@27	1191	pc_printf("Options:\n");
dvander@27	1192	pc_printf(" -A<num> alignment in bytes of the data segment and the stack\n");
dvander@27	1193	pc_printf(" -a output assembler code\n");
dvander@27	1194	#if 0 /* not toggleable in SourceMod */
dvander@27	1195	pc_printf(" -C[+/-] compact encoding for output file (default=%c)\n", sc_compress ? '+' : '-');
dvander@27	1196	#endif
dvander@27	1197	pc_printf(" -c<name> codepage name or number; e.g. 1252 for Windows Latin-1\n");
dvander@27	1198	#if defined dos_setdrive
dvander@27	1199	pc_printf(" -Dpath active directory path\n");
dvander@27	1200	#endif
dvander@27	1201	#if 0 /* not used for SourceMod */
dvander@27	1202	pc_printf(" -d<num> debugging level (default=-d%d)\n",sc_debug);
dvander@27	1203	pc_printf(" 0 no symbolic information, no run-time checks\n");
dvander@27	1204	pc_printf(" 1 run-time checks, no symbolic information\n");
dvander@27	1205	pc_printf(" 2 full debug information and dynamic checking\n");
dvander@27	1206	pc_printf(" 3 same as -d2, but implies -O0\n");
dvander@27	1207	#endif
dvander@27	1208	pc_printf(" -e<name> set name of error file (quiet compile)\n");
dvander@27	1209	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows
dvander@27	1210	pc_printf(" -H<hwnd> window handle to send a notification message on finish\n");
dvander@27	1211	#endif
dvander@27	1212	pc_printf(" -i<name> path for include files\n");
dvander@27	1213	pc_printf(" -l create list file (preprocess only)\n");
dvander@27	1214	pc_printf(" -o<name> set base name of (P-code) output file\n");
dvander@27	1215	pc_printf(" -O<num> optimization level (default=-O%d)\n",pc_optimize);
dvander@27	1216	pc_printf(" 0 no optimization\n");
dvander@27	1217	#if 0 /* not used for SourceMod */
dvander@27	1218	pc_printf(" 1 JIT-compatible optimizations only\n");
dvander@27	1219	#endif
dvander@27	1220	pc_printf(" 2 full optimizations\n");
dvander@27	1221	pc_printf(" -p<name> set name of \"prefix\" file\n");
dvander@27	1222	#if !defined SC_LIGHT
dvander@27	1223	pc_printf(" -r[name] write cross reference report to console or to specified file\n");
dvander@27	1224	#endif
dvander@27	1225	pc_printf(" -S<num> stack/heap size in cells (default=%d)\n",(int)pc_stksize);
dvander@27	1226	pc_printf(" -s<num> skip lines from the input file\n");
dvander@27	1227	pc_printf(" -t<num> TAB indent size (in character positions, default=%d)\n",sc_tabsize);
dvander@27	1228	pc_printf(" -v<num> verbosity level; 0=quiet, 1=normal, 2=verbose (default=%d)\n",verbosity);
dvander@27	1229	pc_printf(" -w<num> disable a specific warning by its number\n");
dvander@27	1230	pc_printf(" -X<num> abstract machine size limit in bytes\n");
dvander@27	1231	pc_printf(" -XD<num> abstract machine data/stack size limit in bytes\n");
dvander@27	1232	pc_printf(" -\\ use '\\' for escape characters\n");
dvander@27	1233	pc_printf(" -^ use '^' for escape characters\n");
dvander@27	1234	pc_printf(" -;[+/-] require a semicolon to end each statement (default=%c)\n", sc_needsemicolon ? '+' : '-');
dvander@27	1235	#if 0 /* not allowed in SourceMod */
dvander@27	1236	pc_printf(" -([+/-] require parantheses for function invocation (default=%c)\n", optproccall ? '-' : '+');
dvander@27	1237	#endif
dvander@27	1238	pc_printf(" sym=val define constant \"sym\" with value \"val\"\n");
dvander@27	1239	pc_printf(" sym= define constant \"sym\" with value 0\n");
dvander@27	1240	#if defined __WIN32__ \|\| defined _WIN32 \|\| defined _Windows \|\| defined __MSDOS__
dvander@27	1241	pc_printf("\nOptions may start with a dash or a slash; the options \"-d0\" and \"/d0\" are\n");
dvander@27	1242	pc_printf("equivalent.\n");
dvander@27	1243	#endif
dvander@27	1244	pc_printf("\nOptions with a value may optionally separate the value from the option letter\n");
dvander@27	1245	pc_printf("with a colon (\":\") or an equal sign (\"=\"). That is, the options \"-d0\", \"-d=0\"\n");
dvander@27	1246	pc_printf("and \"-d:0\" are all equivalent.\n");
dvander@27	1247	} /* if */
dvander@27	1248	norun = 1;
dvander@27	1249	longjmp(errbuf,3); /* user abort */
dvander@27	1250	}
dvander@27	1251
dvander@27	1252	static void setconstants(void)
dvander@27	1253	{
dvander@27	1254	int debug;
dvander@27	1255
dvander@27	1256	assert(sc_status==statIDLE);
dvander@27	1257	append_constval(&tagname_tab,"_",0,0);/* "untagged" */
dvander@27	1258	append_constval(&tagname_tab,"bool",1,0);
dvander@132	1259	pc_functag = pc_addfunctag("Function");
dvander@151	1260	pc_tag_string = pc_addtag("String");
dvander@27	1261
dvander@27	1262	add_constant("true",1,sGLOBAL,1); /* boolean flags */
dvander@27	1263	add_constant("false",0,sGLOBAL,1);
dvander@27	1264	add_constant("EOS",0,sGLOBAL,0); /* End Of String, or '\0' */
dvander@27	1265	#if PAWN_CELL_SIZE==16
dvander@27	1266	add_constant("cellbits",16,sGLOBAL,0);
dvander@27	1267	#if defined _I16_MAX
dvander@27	1268	add_constant("cellmax",_I16_MAX,sGLOBAL,0);
dvander@27	1269	add_constant("cellmin",_I16_MIN,sGLOBAL,0);
dvander@27	1270	#else
dvander@27	1271	add_constant("cellmax",SHRT_MAX,sGLOBAL,0);
dvander@27	1272	add_constant("cellmin",SHRT_MIN,sGLOBAL,0);
dvander@27	1273	#endif
dvander@27	1274	#elif PAWN_CELL_SIZE==32
dvander@27	1275	add_constant("cellbits",32,sGLOBAL,0);
dvander@27	1276	#if defined _I32_MAX
dvander@27	1277	add_constant("cellmax",_I32_MAX,sGLOBAL,0);
dvander@27	1278	add_constant("cellmin",_I32_MIN,sGLOBAL,0);
dvander@27	1279	#else
dvander@27	1280	add_constant("cellmax",LONG_MAX,sGLOBAL,0);
dvander@27	1281	add_constant("cellmin",LONG_MIN,sGLOBAL,0);
dvander@27	1282	#endif
dvander@27	1283	#elif PAWN_CELL_SIZE==64
dvander@27	1284	#if !defined _I64_MIN
dvander@27	1285	#define _I64_MIN (-9223372036854775807ULL - 1)
dvander@27	1286	#define _I64_MAX 9223372036854775807ULL
dvander@27	1287	#endif
dvander@27	1288	add_constant("cellbits",64,sGLOBAL,0);
dvander@27	1289	add_constant("cellmax",_I64_MAX,sGLOBAL,0);
dvander@27	1290	add_constant("cellmin",_I64_MIN,sGLOBAL,0);
dvander@27	1291	#else
dvander@27	1292	#error Unsupported cell size
dvander@27	1293	#endif
dvander@27	1294	add_constant("charbits",sCHARBITS,sGLOBAL,0);
dvander@27	1295	add_constant("charmin",0,sGLOBAL,0);
dvander@27	1296	add_constant("charmax",~(-1 << sCHARBITS) - 1,sGLOBAL,0);
dvander@27	1297	add_constant("ucharmax",(1 << (sizeof(cell)-1)*8)-1,sGLOBAL,0);
dvander@27	1298
dvander@27	1299	add_constant("__Pawn",VERSION_INT,sGLOBAL,0);
dvander@27	1300
dvander@27	1301	debug=0;
dvander@27	1302	if ((sc_debug & (sCHKBOUNDS \| sSYMBOLIC))==(sCHKBOUNDS \| sSYMBOLIC))
dvander@27	1303	debug=2;
dvander@27	1304	else if ((sc_debug & sCHKBOUNDS)==sCHKBOUNDS)
dvander@27	1305	debug=1;
dvander@27	1306	add_constant("debug",debug,sGLOBAL,0);
dvander@27	1307
dvander@27	1308	append_constval(&sc_automaton_tab,"",0,0); /* anonymous automaton */
dvander@27	1309	}
dvander@27	1310
dvander@27	1311	static int getclassspec(int initialtok,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1312	{
dvander@27	1313	int tok,err;
dvander@27	1314	cell val;
dvander@27	1315	char *str;
dvander@27	1316
dvander@27	1317	assert(fconst!=NULL);
dvander@27	1318	assert(fstock!=NULL);
dvander@27	1319	assert(fstatic!=NULL);
dvander@27	1320	assert(fpublic!=NULL);
dvander@27	1321	*fconst=FALSE;
dvander@27	1322	*fstock=FALSE;
dvander@27	1323	*fstatic=FALSE;
dvander@27	1324	*fpublic=FALSE;
dvander@27	1325	switch (initialtok) {
dvander@27	1326	case tCONST:
dvander@27	1327	*fconst=TRUE;
dvander@27	1328	break;
dvander@27	1329	case tSTOCK:
dvander@27	1330	*fstock=TRUE;
dvander@27	1331	break;
dvander@27	1332	case tSTATIC:
dvander@27	1333	*fstatic=TRUE;
dvander@27	1334	break;
dvander@27	1335	case tPUBLIC:
dvander@27	1336	*fpublic=TRUE;
dvander@27	1337	break;
dvander@27	1338	} /* switch */
dvander@27	1339
dvander@27	1340	err=0;
dvander@27	1341	do {
dvander@27	1342	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1343	switch (tok) {
dvander@27	1344	case tCONST:
dvander@27	1345	if (*fconst)
dvander@27	1346	err=42; /* invalid combination of class specifiers */
dvander@27	1347	*fconst=TRUE;
dvander@27	1348	break;
dvander@27	1349	case tSTOCK:
dvander@27	1350	if (*fstock)
dvander@27	1351	err=42; /* invalid combination of class specifiers */
dvander@27	1352	*fstock=TRUE;
dvander@27	1353	break;
dvander@27	1354	case tSTATIC:
dvander@27	1355	if (*fstatic)
dvander@27	1356	err=42; /* invalid combination of class specifiers */
dvander@27	1357	*fstatic=TRUE;
dvander@27	1358	break;
dvander@27	1359	case tPUBLIC:
dvander@27	1360	if (*fpublic)
dvander@27	1361	err=42; /* invalid combination of class specifiers */
dvander@27	1362	*fpublic=TRUE;
dvander@27	1363	break;
dvander@27	1364	default:
dvander@27	1365	lexpush();
dvander@27	1366	tok=0; /* force break out of loop */
dvander@27	1367	} /* switch */
dvander@27	1368	} while (tok && err==0);
dvander@27	1369
dvander@27	1370	/* extra checks */
dvander@27	1371	if (fstatic && fpublic) {
dvander@27	1372	err=42; /* invalid combination of class specifiers */
dvander@27	1373	fstatic=fpublic=FALSE;
dvander@27	1374	} /* if */
dvander@27	1375
dvander@27	1376	if (err)
dvander@27	1377	error(err);
dvander@27	1378	return err==0;
dvander@27	1379	}
dvander@27	1380
dvander@27	1381	/* parse - process all input text
dvander@27	1382	*
dvander@27	1383	* At this level, only static declarations and function definitions are legal.
dvander@27	1384	*/
dvander@27	1385	static void parse(void)
dvander@27	1386	{
dvander@27	1387	int tok,fconst,fstock,fstatic,fpublic;
dvander@27	1388	cell val;
dvander@27	1389	char *str;
dvander@27	1390
dvander@27	1391	while (freading){
dvander@27	1392	/* first try whether a declaration possibly is native or public */
dvander@27	1393	tok=lex(&val,&str); /* read in (new) token */
dvander@27	1394	switch (tok) {
dvander@27	1395	case 0:
dvander@27	1396	/* ignore zero's */
dvander@27	1397	break;
dvander@27	1398	case tNEW:
dvander@27	1399	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst))
dvander@27	1400	declglb(NULL,0,fpublic,fstatic,fstock,fconst);
dvander@27	1401	break;
dvander@27	1402	case tSTATIC:
dvander@27	1403	/* This can be a static function or a static global variable; we know
dvander@27	1404	* which of the two as soon as we have parsed up to the point where an
dvander@27	1405	* opening paranthesis of a function would be expected. To back out after
dvander@27	1406	* deciding it was a declaration of a static variable after all, we have
dvander@27	1407	* to store the symbol name and tag.
dvander@27	1408	*/
dvander@27	1409	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1410	assert(!fpublic);
dvander@27	1411	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1412	} /* if */
dvander@27	1413	break;
dvander@27	1414	case tCONST:
dvander@27	1415	decl_const(sGLOBAL);
dvander@27	1416	break;
dvander@27	1417	case tENUM:
dvander@27	1418	decl_enum(sGLOBAL);
dvander@27	1419	break;
dvander@132	1420	case tFUNCENUM:
dvander@132	1421	dofuncenum();
dvander@132	1422	break;
dvander@167	1423	case tSTRUCT:
dvander@167	1424	declstruct();
dvander@167	1425	break;
dvander@27	1426	case tPUBLIC:
dvander@27	1427	/* This can be a public function or a public variable; see the comment
dvander@27	1428	* above (for static functions/variables) for details.
dvander@27	1429	*/
dvander@27	1430	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1431	assert(!fstatic);
dvander@27	1432	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1433	} /* if */
dvander@27	1434	break;
dvander@27	1435	case tSTOCK:
dvander@27	1436	/* This can be a stock function or a stock global) variable; see the
dvander@27	1437	* comment above (for static functions/variables) for details.
dvander@27	1438	*/
dvander@27	1439	if (getclassspec(tok,&fpublic,&fstatic,&fstock,&fconst)) {
dvander@27	1440	assert(fstock);
dvander@27	1441	declfuncvar(fpublic,fstatic,fstock,fconst);
dvander@27	1442	} /* if */
dvander@27	1443	break;
dvander@27	1444	case tLABEL:
dvander@27	1445	case tSYMBOL:
dvander@27	1446	case tOPERATOR:
dvander@27	1447	lexpush();
dvander@27	1448	if (!newfunc(NULL,-1,FALSE,FALSE,FALSE)) {
dvander@27	1449	error(10); /* illegal function or declaration */
dvander@27	1450	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1451	litidx=0; /* drop the literal queue too */
dvander@27	1452	} /* if */
dvander@27	1453	break;
dvander@27	1454	case tNATIVE:
dvander@27	1455	funcstub(TRUE); /* create a dummy function */
dvander@27	1456	break;
dvander@27	1457	case tFORWARD:
dvander@27	1458	funcstub(FALSE);
dvander@27	1459	break;
dvander@27	1460	case '}':
dvander@27	1461	error(54); /* unmatched closing brace */
dvander@27	1462	break;
dvander@27	1463	case '{':
dvander@27	1464	error(55); /* start of function body without function header */
dvander@27	1465	break;
dvander@27	1466	default:
dvander@27	1467	if (freading) {
dvander@27	1468	error(10); /* illegal function or declaration */
dvander@27	1469	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1470	litidx=0; /* drop any literal arrays (strings) */
dvander@27	1471	} /* if */
dvander@27	1472	} /* switch */
dvander@27	1473	} /* while */
dvander@27	1474	}
dvander@27	1475
dvander@27	1476	/* dumplits
dvander@27	1477	*
dvander@27	1478	* Dump the literal pool (strings etc.)
dvander@27	1479	*
dvander@27	1480	* Global references: litidx (referred to only)
dvander@27	1481	*/
dvander@27	1482	static void dumplits(void)
dvander@27	1483	{
dvander@27	1484	int j,k;
dvander@27	1485
faluco@62	1486	if (sc_status==statSKIP)
faluco@62	1487	return;
faluco@62	1488
dvander@27	1489	k=0;
dvander@27	1490	while (k<litidx){
dvander@27	1491	/* should be in the data segment */
dvander@27	1492	assert(curseg==2);
dvander@27	1493	defstorage();
dvander@27	1494	j=16; /* 16 values per line */
dvander@27	1495	while (j && k<litidx){
dvander@27	1496	outval(litq[k], FALSE);
dvander@27	1497	stgwrite(" ");
dvander@27	1498	k++;
dvander@27	1499	j--;
dvander@27	1500	if (j==0 \|\| k>=litidx)
dvander@27	1501	stgwrite("\n"); /* force a newline after 10 dumps */
dvander@27	1502	/* Note: stgwrite() buffers a line until it is complete. It recognizes
dvander@27	1503	* the end of line as a sequence of "\n\0", so something like "\n\t"
dvander@27	1504	* so should not be passed to stgwrite().
dvander@27	1505	*/
dvander@27	1506	} /* while */
dvander@27	1507	} /* while */
dvander@27	1508	}
dvander@27	1509
dvander@27	1510	/* dumpzero
dvander@27	1511	*
dvander@27	1512	* Dump zero's for default initial values
dvander@27	1513	*/
dvander@27	1514	static void dumpzero(int count)
dvander@27	1515	{
dvander@27	1516	int i;
dvander@27	1517
faluco@62	1518	if (sc_status==statSKIP \|\| count<=0)
dvander@27	1519	return;
dvander@27	1520	assert(curseg==2);
dvander@27	1521	defstorage();
dvander@27	1522	i=0;
dvander@27	1523	while (count-- > 0) {
dvander@27	1524	outval(0, FALSE);
dvander@27	1525	i=(i+1) % 16;
dvander@27	1526	stgwrite((i==0 \|\| count==0) ? "\n" : " ");
dvander@27	1527	if (i==0 && count>0)
dvander@27	1528	defstorage();
dvander@27	1529	} /* while */
dvander@27	1530	}
dvander@27	1531
dvander@27	1532	static void aligndata(int numbytes)
dvander@27	1533	{
dvander@27	1534	assert(numbytes % sizeof(cell) == 0); /* alignment must be a multiple of
dvander@27	1535	* the cell size */
dvander@27	1536	assert(numbytes!=0);
dvander@27	1537
dvander@27	1538	if ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0) {
dvander@27	1539	while ((((glb_declared+litidx)*sizeof(cell)) % numbytes)!=0)
dvander@27	1540	litadd(0);
dvander@27	1541	} /* if */
dvander@27	1542
dvander@27	1543	}
dvander@27	1544
dvander@27	1545	#if !defined SC_LIGHT
dvander@27	1546	/* sc_attachdocumentation()
dvander@27	1547	* appends documentation comments to the passed-in symbol, or to a global
dvander@27	1548	* string if "sym" is NULL.
dvander@27	1549	*/
dvander@27	1550	void sc_attachdocumentation(symbol *sym)
dvander@27	1551	{
dvander@27	1552	int line;
dvander@27	1553	size_t length;
dvander@27	1554	char str,doc;
dvander@27	1555
dvander@27	1556	if (!sc_makereport \|\| sc_status!=statFIRST \|\| sc_parsenum>0) {
dvander@27	1557	/* just clear the entire table */
dvander@27	1558	delete_docstringtable();
dvander@27	1559	return;
dvander@27	1560	} /* if */
dvander@27	1561	/* in the case of state functions, multiple documentation sections may
dvander@27	1562	* appear; we should concatenate these
dvander@27	1563	* (with forward declarations, this is also already the case, so the assertion
dvander@27	1564	* below is invalid)
dvander@27	1565	*/
dvander@27	1566	// assert(sym==NULL \|\| sym->documentation==NULL \|\| sym->states!=NULL);
dvander@27	1567
dvander@27	1568	/* first check the size */
dvander@27	1569	length=0;
dvander@27	1570	for (line=0; (str=get_docstring(line))!=NULL && *str!=sDOCSEP; line++) {
dvander@27	1571	if (length>0)
dvander@27	1572	length++; /* count 1 extra for a separating space */
dvander@27	1573	length+=strlen(str);
dvander@27	1574	} /* for */
dvander@27	1575	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1576	length += strlen(sc_documentation) + 1 + 4; /* plus 4 for "<p/>" */
dvander@27	1577	assert(length>strlen(sc_documentation));
dvander@27	1578	} /* if */
dvander@27	1579
dvander@27	1580	if (length>0) {
dvander@27	1581	/* allocate memory for the documentation */
dvander@27	1582	if (sym!=NULL && sym->documentation!=NULL)
dvander@27	1583	length+=strlen(sym->documentation) + 1 + 4;/* plus 4 for "<p/>" */
dvander@27	1584	doc=(char)malloc((length+1)sizeof(char));
dvander@27	1585	if (doc!=NULL) {
dvander@27	1586	/* initialize string or concatenate */
dvander@27	1587	if (sym==NULL && sc_documentation!=NULL) {
dvander@27	1588	strcpy(doc,sc_documentation);
dvander@27	1589	strcat(doc,"<p/>");
dvander@27	1590	} else if (sym!=NULL && sym->documentation!=NULL) {
dvander@27	1591	strcpy(doc,sym->documentation);
dvander@27	1592	strcat(doc,"<p/>");
dvander@27	1593	free(sym->documentation);
dvander@27	1594	sym->documentation=NULL;
dvander@27	1595	} else {
dvander@27	1596	doc[0]='\0';
dvander@27	1597	} /* if */
dvander@27	1598	/* collect all documentation */
dvander@27	1599	while ((str=get_docstring(0))!=NULL && *str!=sDOCSEP) {
dvander@27	1600	if (doc[0]!='\0')
dvander@27	1601	strcat(doc," ");
dvander@27	1602	strcat(doc,str);
dvander@27	1603	delete_docstring(0);
dvander@27	1604	} /* while */
dvander@27	1605	if (str!=NULL) {
dvander@27	1606	/* also delete the separator */
dvander@27	1607	assert(*str==sDOCSEP);
dvander@27	1608	delete_docstring(0);
dvander@27	1609	} /* if */
dvander@27	1610	if (sym!=NULL) {
dvander@27	1611	assert(sym->documentation==NULL);
dvander@27	1612	sym->documentation=doc;
dvander@27	1613	} else {
dvander@27	1614	if (sc_documentation!=NULL)
dvander@27	1615	free(sc_documentation);
dvander@27	1616	sc_documentation=doc;
dvander@27	1617	} /* if */
dvander@27	1618	} /* if */
dvander@27	1619	} else {
dvander@27	1620	/* delete an empty separator, if present */
dvander@27	1621	if ((str=get_docstring(0))!=NULL && *str==sDOCSEP)
dvander@27	1622	delete_docstring(0);
dvander@27	1623	} /* if */
dvander@27	1624	}
dvander@27	1625
dvander@27	1626	static void insert_docstring_separator(void)
dvander@27	1627	{
dvander@27	1628	char sep[2]={sDOCSEP,'\0'};
dvander@27	1629	insert_docstring(sep);
dvander@27	1630	}
dvander@27	1631	#else
dvander@27	1632	#define sc_attachdocumentation(s) (void)(s)
dvander@27	1633	#define insert_docstring_separator()
dvander@27	1634	#endif
dvander@27	1635
dvander@27	1636	static void declfuncvar(int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1637	{
dvander@27	1638	char name[sNAMEMAX+11];
dvander@167	1639	int tok,tag=0;
dvander@27	1640	char *str;
dvander@27	1641	cell val;
dvander@27	1642	int invalidfunc;
dvander@167	1643	pstruct_t *pstruct = NULL;
dvander@167	1644
dvander@167	1645	tok=lex(&val,&str);
dvander@167	1646	if (tok == tLABEL) {
dvander@167	1647	pstruct=pstructs_find(str);
dvander@167	1648	tag=pc_addtag(str);
dvander@167	1649	} else {
dvander@167	1650	lexpush();
dvander@167	1651	}
dvander@27	1652	tok=lex(&val,&str);
dvander@27	1653	/* if we arrived here, this may not be a declaration of a native function
dvander@27	1654	* or variable
dvander@27	1655	*/
dvander@27	1656	if (tok==tNATIVE) {
dvander@27	1657	error(42); /* invalid combination of class specifiers */
dvander@27	1658	return;
dvander@27	1659	} /* if */
dvander@27	1660
dvander@27	1661	if (tok!=tSYMBOL && tok!=tOPERATOR) {
dvander@27	1662	lexpush();
dvander@27	1663	needtoken(tSYMBOL);
dvander@27	1664	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1665	litidx=0; /* drop the literal queue too */
dvander@27	1666	return;
dvander@27	1667	} /* if */
dvander@27	1668	if (tok==tOPERATOR) {
dvander@27	1669	lexpush(); /* push "operator" keyword back (for later analysis) */
dvander@27	1670	if (!newfunc(NULL,tag,fpublic,fstatic,fstock)) {
dvander@27	1671	error(10); /* illegal function or declaration */
dvander@27	1672	lexclr(TRUE); /* drop the rest of the line */
dvander@27	1673	litidx=0; /* drop the literal queue too */
dvander@27	1674	} /* if */
dvander@27	1675	} else {
dvander@27	1676	/* so tok is tSYMBOL */
dvander@27	1677	assert(strlen(str)<=sNAMEMAX);
dvander@27	1678	strcpy(name,str);
dvander@27	1679	/* only variables can be "const" or both "public" and "stock" */
dvander@27	1680	invalidfunc= fconst \|\| (fpublic && fstock);
dvander@27	1681	if (invalidfunc \|\| !newfunc(name,tag,fpublic,fstatic,fstock)) {
dvander@27	1682	/* if not a function, try a global variable */
dvander@167	1683	if (pstruct) {
dvander@167	1684	declstructvar(name,fpublic,pstruct);
dvander@167	1685	} else {
dvander@167	1686	declglb(name,tag,fpublic,fstatic,fstock,fconst);
dvander@167	1687	}
dvander@27	1688	} /* if */
dvander@27	1689	} /* if */
dvander@27	1690	}
dvander@27	1691
dvander@167	1692	/* declstruct - declare global struct symbols
dvander@167	1693	*
dvander@167	1694	* global references: glb_declared (altered)
dvander@167	1695	*/
dvander@167	1696	static void declstructvar(char firstname,int fpublic, pstruct_t pstruct)
dvander@167	1697	{
dvander@167	1698	char name[sNAMEMAX+1];
dvander@167	1699	int tok,i;
dvander@167	1700	cell val;
dvander@167	1701	char *str;
dvander@167	1702	int cur_litidx = 0;
dvander@167	1703	cell values, found;
dvander@167	1704	int usage;
dvander@169	1705	symbol mysym,sym;
dvander@167	1706
dvander@167	1707	strcpy(name, firstname);
dvander@167	1708
dvander@167	1709	values = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1710	found = (cell )malloc(pstruct->argcount sizeof(cell));
dvander@167	1711
dvander@167	1712	memset(found, 0, sizeof(cell) * pstruct->argcount);
dvander@167	1713
dvander@169	1714	//:TODO: Make this work with stock
dvander@167	1715
dvander@167	1716	/**
dvander@167	1717	* Lastly, very lastly, we will insert a copy of this variable.
dvander@167	1718	* This is soley to expose the pubvar.
dvander@167	1719	*/
dvander@169	1720	usage = uREAD\|uCONST\|uSTRUCT;
dvander@167	1721	if (fpublic)
dvander@167	1722	{
dvander@167	1723	usage \|= uPUBLIC;
dvander@167	1724	}
dvander@169	1725	mysym = NULL;
dvander@169	1726	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@169	1727	{
dvander@169	1728	if (strcmp(name, sym->name) == 0)
dvander@169	1729	{
dvander@169	1730	if ((sym->usage & uSTRUCT) && sym->vclass == sGLOBAL)
dvander@169	1731	{
dvander@169	1732	if (sym->usage & uDEFINE)
dvander@169	1733	{
dvander@169	1734	error(21, name);
dvander@169	1735	} else {
dvander@169	1736	if (sym->usage & uPUBLIC && !fpublic)
dvander@169	1737	{
dvander@169	1738	error(42);
dvander@169	1739	}
dvander@169	1740	}
dvander@169	1741	} else {
dvander@169	1742	error(21, name);
dvander@169	1743	}
dvander@169	1744	mysym = sym;
dvander@169	1745	break;
dvander@169	1746	}
dvander@169	1747	}
dvander@169	1748	if (!mysym)
dvander@169	1749	{
dvander@169	1750	mysym=addsym(name, 0, iVARIABLE, sGLOBAL, pc_addtag(pstruct->name), usage);
dvander@169	1751	}
dvander@169	1752
dvander@169	1753	if (!matchtoken('='))
dvander@167	1754	{
dvander@167	1755	matchtoken(';');
dvander@169	1756	/* Mark it as undefined instead */
dvander@169	1757	mysym->usage = uSTOCK\|uSTRUCT;
dvander@167	1758	return;
dvander@169	1759	} else {
dvander@169	1760	mysym->usage = usage;
dvander@167	1761	}
dvander@167	1762	needtoken('{');
dvander@167	1763	do
dvander@167	1764	{
dvander@167	1765	structarg_t *arg;
dvander@167	1766	/* Detect early exit */
dvander@167	1767	if (matchtoken('}'))
dvander@167	1768	{
dvander@167	1769	lexpush();
dvander@167	1770	break;
dvander@167	1771	}
dvander@167	1772	tok=lex(&val,&str);
dvander@167	1773	if (tok != tSYMBOL)
dvander@167	1774	{
dvander@167	1775	error(1, "-identifier-", str);
dvander@167	1776	continue;
dvander@167	1777	}
dvander@167	1778	arg=pstructs_getarg(pstruct,str);
dvander@167	1779	if (arg == NULL)
dvander@167	1780	{
dvander@167	1781	/* :TODO: change to "Could not find member %s in struct %s" */
dvander@167	1782	error(31);
dvander@167	1783	}
dvander@167	1784	needtoken('=');
dvander@167	1785	cur_litidx = litidx;
dvander@167	1786	tok=lex(&val,&str);
dvander@167	1787	if (!arg)
dvander@167	1788	{
dvander@167	1789	continue;
dvander@167	1790	}
dvander@167	1791	if (tok == tSTRING)
dvander@167	1792	{
dvander@167	1793	assert(litidx != 0);
dvander@167	1794	if (arg->dimcount != 1)
dvander@167	1795	{
dvander@167	1796	error(48);
dvander@167	1797	} else if (arg->tag != pc_tag_string) {
dvander@167	1798	error(213);
dvander@167	1799	}
dvander@167	1800	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1801	glb_declared += (litidx-cur_litidx);
dvander@167	1802	found[arg->index] = 1;
dvander@167	1803	} else if (tok == tNUMBER \|\| tok == tRATIONAL) {
dvander@167	1804	/* eat optional 'f' */
dvander@167	1805	matchtoken('f');
dvander@167	1806	if (arg->ident != iVARIABLE && arg->ident != iREFERENCE)
dvander@167	1807	{
dvander@167	1808	error(23);
dvander@167	1809	} else {
dvander@167	1810	if (arg->tag == pc_addtag("Float") && tok == tNUMBER \|\|
dvander@167	1811	arg->tag == 0 && tok == tRATIONAL)
dvander@167	1812	{
dvander@167	1813	error(213);
dvander@167	1814	}
dvander@167	1815	if (arg->ident == iVARIABLE)
dvander@167	1816	{
dvander@167	1817	values[arg->index] = val;
dvander@167	1818	} else if (arg->ident == iREFERENCE) {
dvander@167	1819	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1820	glb_declared += 1;
dvander@167	1821	litadd(val);
dvander@167	1822	cur_litidx = litidx;
dvander@167	1823	}
dvander@167	1824	found[arg->index] = 1;
dvander@167	1825	}
dvander@167	1826	} else if (tok == tSYMBOL) {
dvander@167	1827	for (sym=glbtab.next; sym!=NULL; sym=sym->next)
dvander@167	1828	{
dvander@167	1829	if (sym->vclass != sGLOBAL)
dvander@167	1830	{
dvander@167	1831	continue;
dvander@167	1832	}
dvander@167	1833	if (strcmp(sym->name, str) == 0)
dvander@167	1834	{
dvander@167	1835	if (arg->ident == iREFERENCE && sym->ident != iVARIABLE)
dvander@167	1836	{
dvander@167	1837	/* :TODO: Change to "symbol \"%s\" does not have a matching type */
dvander@167	1838	error(20, str);
dvander@167	1839	} else if (arg->ident == iARRAY) {
dvander@167	1840	if (sym->ident != iARRAY)
dvander@167	1841	{
dvander@167	1842	/* :TODO: Change to "symbol \"%s\" does not have a matching type */
dvander@167	1843	error(20, str);
dvander@167	1844	} else {
dvander@167	1845	/* :TODO: We should check dimension sizes here... */
dvander@167	1846	}
dvander@167	1847	} else if (arg->ident == iREFARRAY) {
dvander@167	1848	if (sym->ident != iARRAY)
dvander@167	1849	{
dvander@167	1850	/* :TODO: Change to "symbol \"%s\" does not have a matching type */
dvander@167	1851	error(20, str);
dvander@167	1852	}
dvander@167	1853	/* :TODO: Check dimension sizes! */
dvander@167	1854	} else {
dvander@167	1855	/* :TODO: Change to "symbol \"%s\" does not have a matching type */
dvander@167	1856	error(20, str);
dvander@167	1857	}
dvander@167	1858	if (sym->tag != arg->tag)
dvander@167	1859	{
dvander@167	1860	error(213);
dvander@167	1861	}
dvander@167	1862	sym->usage \|= uREAD;
dvander@167	1863	values[arg->index] = sym->addr;
dvander@167	1864	found[arg->index] = 1;
dvander@167	1865	refer_symbol(sym, mysym);
dvander@167	1866	break;
dvander@167	1867	}
dvander@167	1868	}
dvander@167	1869	if (!sym)
dvander@167	1870	{
dvander@167	1871	error(17, str);
dvander@167	1872	}
dvander@167	1873	} else {
dvander@167	1874	error(1, "-identifier-", str);
dvander@167	1875	}
dvander@167	1876	} while (matchtoken(','));
dvander@167	1877	needtoken('}');
dvander@167	1878	matchtoken(';'); /* eat up optional semicolon */
dvander@167	1879
dvander@167	1880	for (i=0; i<pstruct->argcount; i++)
dvander@167	1881	{
dvander@167	1882	if (!found[i])
dvander@167	1883	{
dvander@167	1884	structarg_t *arg = pstruct->args[i];
dvander@167	1885	if (arg->ident == iREFARRAY)
dvander@167	1886	{
dvander@167	1887	values[arg->index] = glb_declared * sizeof(cell);
dvander@167	1888	glb_declared += 1;
dvander@167	1889	litadd(0);
dvander@167	1890	cur_litidx = litidx;
dvander@167	1891	} else if (arg->ident == iVARIABLE) {
dvander@167	1892	values[arg->index] = 0;
dvander@167	1893	} else {
dvander@167	1894	/* :TODO: broken for iARRAY! (unused tho) */
dvander@167	1895	}
dvander@167	1896	}
dvander@167	1897	}
dvander@167	1898
dvander@167	1899	mysym->addr = glb_declared * sizeof(cell);
dvander@167	1900	glb_declared += pstruct->argcount;
dvander@167	1901
dvander@167	1902	for (i=0; i<pstruct->argcount; i++)
dvander@167	1903	{
dvander@167	1904	litadd(values[i]);
dvander@167	1905	}
dvander@167	1906
dvander@167	1907	begdseg();
dvander@167	1908	dumplits();
dvander@167	1909	litidx=0;
dvander@167	1910
dvander@167	1911	free(found);
dvander@167	1912	free(values);
dvander@167	1913	}
dvander@167	1914
dvander@27	1915	/* declglb - declare global symbols
dvander@27	1916	*
dvander@27	1917	* Declare a static (global) variable. Global variables are stored in
dvander@27	1918	* the DATA segment.
dvander@27	1919	*
dvander@27	1920	* global references: glb_declared (altered)
dvander@27	1921	*/
dvander@27	1922	static void declglb(char *firstname,int firsttag,int fpublic,int fstatic,int fstock,int fconst)
dvander@27	1923	{
dvander@27	1924	int ident,tag,ispublic;
dvander@27	1925	int idxtag[sDIMEN_MAX];
dvander@27	1926	char name[sNAMEMAX+1];
dvander@27	1927	cell val,size,cidx;
dvander@27	1928	ucell address;
dvander@27	1929	int glb_incr;
dvander@27	1930	char *str;
dvander@27	1931	int dim[sDIMEN_MAX];
dvander@27	1932	int numdim;
dvander@286	1933	int slength=0;
dvander@27	1934	short filenum;
dvander@27	1935	symbol *sym;
dvander@27	1936	constvalue *enumroot;
dvander@27	1937	#if !defined NDEBUG
dvander@27	1938	cell glbdecl=0;
dvander@27	1939	#endif
dvander@27	1940
dvander@27	1941	assert(!fpublic \|\| !fstatic); /* may not both be set */
dvander@27	1942	insert_docstring_separator(); /* see comment in newfunc() */
dvander@27	1943	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	1944	do {
dvander@27	1945	size=1; /* single size (no array) */
dvander@27	1946	numdim=0; /* no dimensions */
dvander@27	1947	ident=iVARIABLE;
dvander@27	1948	if (firstname!=NULL) {
dvander@27	1949	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	1950	strcpy(name,firstname); /* save symbol name */
dvander@27	1951	tag=firsttag;
dvander@27	1952	firstname=NULL;
dvander@27	1953	} else {
dvander@27	1954	tag=pc_addtag(NULL);
dvander@27	1955	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	1956	error(20,str); /* invalid symbol name */
dvander@27	1957	assert(strlen(str)<=sNAMEMAX);
dvander@27	1958	strcpy(name,str); /* save symbol name */
dvander@27	1959	} /* if */
dvander@27	1960	ispublic=fpublic;
dvander@27	1961	if (name[0]==PUBLIC_CHAR) {
dvander@27	1962	ispublic=TRUE; /* implicitly public variable */
dvander@27	1963	assert(!fstatic);
dvander@27	1964	} /* if */
dvander@118	1965	while (matchtoken('[')) {
dvander@27	1966	ident=iARRAY;
dvander@27	1967	if (numdim == sDIMEN_MAX) {
dvander@27	1968	error(53); /* exceeding maximum number of dimensions */
dvander@27	1969	return;
dvander@27	1970	} /* if */
dvander@27	1971	size=needsub(&idxtag[numdim],&enumroot); /* get size; size==0 for "var[]" */
dvander@27	1972	#if INT_MAX < LONG_MAX
dvander@27	1973	if (size > INT_MAX)
dvander@27	1974	error(105); /* overflow, exceeding capacity */
dvander@27	1975	#endif
dvander@127	1976	#if 0 /* We don't actually care */
dvander@27	1977	if (ispublic)
dvander@27	1978	error(56,name); /* arrays cannot be public */
dvander@127	1979	#endif
dvander@27	1980	dim[numdim++]=(int)size;
dvander@27	1981	} /* while */
dvander@286	1982	if (ident == iARRAY && tag == pc_tag_string && dim[numdim-1]) {
dvander@286	1983	slength=dim[numdim-1];
dvander@151	1984	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@286	1985	}
dvander@27	1986	assert(sc_curstates==0);
dvander@27	1987	sc_curstates=getstates(name);
dvander@27	1988	if (sc_curstates<0) {
dvander@27	1989	error(85,name); /* empty state list on declaration */
dvander@27	1990	sc_curstates=0;
dvander@27	1991	} else if (sc_curstates>0 && ispublic) {
dvander@27	1992	error(88,name); /* public variables may not have states */
dvander@27	1993	sc_curstates=0;
dvander@27	1994	} /* if */
dvander@27	1995	sym=findconst(name,NULL);
dvander@27	1996	if (sym==NULL) {
dvander@27	1997	sym=findglb(name,sSTATEVAR);
dvander@27	1998	/* if a global variable without states is found and this declaration has
dvander@27	1999	* states, the declaration is okay
dvander@27	2000	*/
dvander@27	2001	if (sym!=NULL && sym->states==NULL && sc_curstates>0)
dvander@27	2002	sym=NULL; /* set to NULL, we found the global variable */
dvander@27	2003	if (sc_curstates>0 && findglb(name,sGLOBAL)!=NULL)
dvander@27	2004	error(233,name); /* state variable shadows a global variable */
dvander@27	2005	} /* if */
dvander@27	2006	/* we have either:
dvander@27	2007	* a) not found a matching variable (or rejected it, because it was a shadow)
dvander@27	2008	* b) found a global variable and we were looking for that global variable
dvander@27	2009	* c) found a state variable in the automaton that we were looking for
dvander@27	2010	*/
dvander@27	2011	assert(sym==NULL
dvander@27	2012	\|\| sym->states==NULL && sc_curstates==0
dvander@27	2013	\|\| sym->states!=NULL && sym->next!=NULL && sym->states->next->index==sc_curstates);
dvander@27	2014	/* a state variable may only have a single id in its list (so either this
dvander@27	2015	* variable has no states, or it has a single list)
dvander@27	2016	*/
dvander@27	2017	assert(sym==NULL \|\| sym->states==NULL \|\| sym->states->next->next==NULL);
dvander@27	2018	/* it is okay for the (global) variable to exist, as long as it belongs to
dvander@27	2019	* a different automaton
dvander@27	2020	*/
dvander@27	2021	if (sym!=NULL && (sym->usage & uDEFINE)!=0)
dvander@27	2022	error(21,name); /* symbol already defined */
dvander@27	2023	/* if this variable is never used (which can be detected only in the
dvander@27	2024	* second stage), shut off code generation
dvander@27	2025	*/
dvander@27	2026	cidx=0; /* only to avoid a compiler warning */
dvander@27	2027	if (sc_status==statWRITE && sym!=NULL && (sym->usage & (uREAD \| uWRITTEN))==0) {
dvander@27	2028	sc_status=statSKIP;
dvander@27	2029	cidx=code_idx;
dvander@27	2030	#if !defined NDEBUG
dvander@27	2031	glbdecl=glb_declared;
dvander@27	2032	#endif
dvander@27	2033	} /* if */
dvander@27	2034	begdseg(); /* real (initialized) data in data segment */
dvander@27	2035	assert(litidx==0); /* literal queue should be empty */
dvander@27	2036	if (sc_alignnext) {
dvander@27	2037	litidx=0;
dvander@27	2038	aligndata(sc_dataalign);
dvander@27	2039	dumplits(); /* dump the literal queue */
dvander@27	2040	sc_alignnext=FALSE;
dvander@27	2041	litidx=0; /* global initial data is dumped, so restart at zero */
dvander@27	2042	} /* if */
dvander@27	2043	assert(litidx==0); /* literal queue should be empty (again) */
dvander@27	2044	initials(ident,tag,&size,dim,numdim,enumroot);/* stores values in the literal queue */
dvander@27	2045	assert(size>=litidx);
dvander@27	2046	if (numdim==1)
dvander@27	2047	dim[0]=(int)size;
dvander@27	2048	/* before dumping the initial values (or zeros) check whether this variable
dvander@27	2049	* overlaps another
dvander@27	2050	*/
dvander@27	2051	if (sc_curstates>0) {
dvander@27	2052	unsigned char *map;
dvander@27	2053
dvander@27	2054	if (litidx!=0)
dvander@27	2055	error(89,name); /* state variables may not be initialized */
dvander@27	2056	/* find an appropriate address for the state variable */
dvander@27	2057	/* assume that it cannot be found */
dvander@27	2058	address=sizeof(cell)*glb_declared;
dvander@27	2059	glb_incr=(int)size;
dvander@27	2060	/* use a memory map in which every cell occupies one bit */
dvander@27	2061	if (glb_declared>0 && (map=(unsigned char*)malloc((glb_declared+7)/8))!=NULL) {
dvander@27	2062	int fsa=state_getfsa(sc_curstates);
dvander@27	2063	symbol *sweep;
dvander@27	2064	cell sweepsize,addr;
dvander@27	2065	memset(map,0,(glb_declared+7)/8);
dvander@27	2066	assert(fsa>=0);
dvander@27	2067	/* fill in all variables belonging to this automaton */
dvander@27	2068	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2069	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2070	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2071	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2072	continue; /* a function or a constant */
dvander@27	2073	if ((sweep->usage & uDEFINE)==0)
dvander@27	2074	continue; /* undefined variable, ignore */
dvander@27	2075	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2076	continue; /* wrong automaton */
dvander@27	2077	/* when arrived here, this is a global variable, with states and
dvander@27	2078	* belonging to the same automaton as the variable we are declaring
dvander@27	2079	*/
dvander@27	2080	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2081	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2082	addr=sweep->addr/sizeof(cell);
dvander@27	2083	/* mark this address range */
dvander@27	2084	while (sweepsize-->0) {
dvander@27	2085	map[addr/8] \|= (unsigned char)(1 << (addr % 8));
dvander@27	2086	addr++;
dvander@27	2087	} /* while */
dvander@27	2088	} /* for */
dvander@27	2089	/* go over it again, clearing any ranges that have conflicts */
dvander@27	2090	for (sweep=glbtab.next; sweep!=NULL; sweep=sweep->next) {
dvander@27	2091	if (sweep->parent!=NULL \|\| sweep->states==NULL \|\| sweep==sym)
dvander@27	2092	continue; /* hierarchical type, or no states, or same as this variable */
dvander@27	2093	if (sweep->ident!=iVARIABLE && sweep->ident!=iARRAY)
dvander@27	2094	continue; /* a function or a constant */
dvander@27	2095	if ((sweep->usage & uDEFINE)==0)
dvander@27	2096	continue; /* undefined variable, ignore */
dvander@27	2097	if (fsa!=state_getfsa(sweep->states->next->index))
dvander@27	2098	continue; /* wrong automaton */
dvander@27	2099	/* when arrived here, this is a global variable, with states and
dvander@27	2100	* belonging to the same automaton as the variable we are declaring
dvander@27	2101	*/
dvander@27	2102	/* if the lists of states of the existing variable and the new
dvander@27	2103	* variable have a non-empty intersection, this is not a suitable
dvander@27	2104	* overlap point -> wipe the address range
dvander@27	2105	*/
dvander@27	2106	if (state_conflict_id(sc_curstates,sweep->states->next->index)) {
dvander@27	2107	sweepsize=(sweep->ident==iVARIABLE) ? 1 : array_totalsize(sweep);
dvander@27	2108	assert(sweep->addr % sizeof(cell) == 0);
dvander@27	2109	addr=sweep->addr/sizeof(cell);
dvander@27	2110	/* mark this address range */
dvander@27	2111	while (sweepsize-->0) {
dvander@27	2112	map[addr/8] &= (unsigned char)(~(1 << (addr % 8)));
dvander@27	2113	addr++;
dvander@27	2114	} /* while */
dvander@27	2115	} /* if */
dvander@27	2116	} /* for */
dvander@27	2117	/* now walk through the map and find a starting point that is big enough */
dvander@27	2118	sweepsize=0;
dvander@27	2119	for (addr=0; addr<glb_declared; addr++) {
dvander@27	2120	if ((map[addr/8] & (1 << (addr % 8)))==0)
dvander@27	2121	continue;
dvander@27	2122	for (sweepsize=addr+1; sweepsize<glb_declared; sweepsize++) {
dvander@27	2123	if ((map[sweepsize/8] & (1 << (sweepsize % 8)))==0)
dvander@27	2124	break; /* zero bit found, skip this range */
dvander@27	2125	if (sweepsize-addr>=size)
dvander@27	2126	break; /* fitting range found, no need to search further */
dvander@27	2127	} /* for */
dvander@27	2128	if (sweepsize-addr>=size)
dvander@27	2129	break; /* fitting range found, no need to search further */
dvander@27	2130	addr=sweepsize;
dvander@27	2131	} /* for */
dvander@27	2132	free(map);
dvander@27	2133	if (sweepsize-addr>=size) {
dvander@27	2134	address=sizeof(cell)addr; / fitting range found, set it */
dvander@27	2135	glb_incr=0;
dvander@27	2136	} /* if */
dvander@27	2137	} /* if */
dvander@27	2138	} else {
dvander@27	2139	address=sizeof(cell)*glb_declared;
dvander@27	2140	glb_incr=(int)size;
dvander@27	2141	} /* if */
dvander@27	2142	if (address==sizeof(cell)*glb_declared) {
dvander@27	2143	dumplits(); /* dump the literal queue */
dvander@27	2144	dumpzero((int)size-litidx);
dvander@27	2145	} /* if */
dvander@27	2146	litidx=0;
dvander@27	2147	if (sym==NULL) { /* define only if not yet defined */
dvander@286	2148	sym=addvariable2(name,address,ident,sGLOBAL,tag,dim,numdim,idxtag,slength);
dvander@27	2149	if (sc_curstates>0)
dvander@27	2150	attachstatelist(sym,sc_curstates);
dvander@27	2151	} else { /* if declared but not yet defined, adjust the variable's address */
dvander@27	2152	assert(sym->states==NULL && sc_curstates==0
dvander@27	2153	\|\| sym->states->next!=NULL && sym->states->next->index==sc_curstates && sym->states->next->next==NULL);
dvander@27	2154	sym->addr=address;
dvander@27	2155	sym->codeaddr=code_idx;
dvander@27	2156	sym->usage\|=uDEFINE;
dvander@27	2157	} /* if */
dvander@27	2158	assert(sym!=NULL);
dvander@27	2159	sc_curstates=0;
dvander@27	2160	if (ispublic)
dvander@127	2161	sym->usage\|=uPUBLIC\|uREAD;
dvander@27	2162	if (fconst)
dvander@27	2163	sym->usage\|=uCONST;
dvander@27	2164	if (fstock)
dvander@27	2165	sym->usage\|=uSTOCK;
dvander@27	2166	if (fstatic)
dvander@27	2167	sym->fnumber=filenum;
dvander@27	2168	sc_attachdocumentation(sym);/* attach any documenation to the variable */
dvander@27	2169	if (sc_status==statSKIP) {
dvander@27	2170	sc_status=statWRITE;
dvander@27	2171	code_idx=cidx;
dvander@27	2172	assert(glb_declared==glbdecl);
dvander@27	2173	} else {
dvander@27	2174	glb_declared+=glb_incr; /* add total number of cells (if added to the end) */
dvander@27	2175	} /* if */
dvander@27	2176	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2177	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2178	}
dvander@27	2179
dvander@27	2180	/* declloc - declare local symbols
dvander@27	2181	*
dvander@27	2182	* Declare local (automatic) variables. Since these variables are relative
dvander@27	2183	* to the STACK, there is no switch to the DATA segment. These variables
dvander@27	2184	* cannot be initialized either.
dvander@27	2185	*
dvander@27	2186	* global references: declared (altered)
dvander@27	2187	* funcstatus (referred to only)
dvander@27	2188	*/
dvander@27	2189	static int declloc(int fstatic)
dvander@27	2190	{
dvander@27	2191	int ident,tag;
dvander@27	2192	int idxtag[sDIMEN_MAX];
dvander@27	2193	char name[sNAMEMAX+1];
dvander@27	2194	symbol *sym;
dvander@152	2195	constvalue *enumroot=NULL;
dvander@27	2196	cell val,size;
dvander@27	2197	char *str;
dvander@27	2198	value lval = {0};
dvander@27	2199	int cur_lit=0;
dvander@27	2200	int dim[sDIMEN_MAX];
dvander@27	2201	int numdim;
dvander@27	2202	int fconst;
dvander@27	2203	int staging_start;
dvander@286	2204	int slength = 0;
dvander@27	2205
dvander@27	2206	fconst=matchtoken(tCONST);
dvander@27	2207	do {
dvander@27	2208	ident=iVARIABLE;
dvander@27	2209	size=1;
dvander@27	2210	numdim=0; /* no dimensions */
dvander@27	2211	tag=pc_addtag(NULL);
dvander@27	2212	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
dvander@27	2213	error(20,str); /* invalid symbol name */
dvander@27	2214	assert(strlen(str)<=sNAMEMAX);
dvander@27	2215	strcpy(name,str); /* save symbol name */
dvander@27	2216	if (name[0]==PUBLIC_CHAR)
dvander@27	2217	error(56,name); /* local variables cannot be public */
dvander@27	2218	/* Note: block locals may be named identical to locals at higher
dvander@27	2219	* compound blocks (as with standard C); so we must check (and add)
dvander@27	2220	* the "nesting level" of local variables to verify the
dvander@27	2221	* multi-definition of symbols.
dvander@27	2222	*/
dvander@27	2223	if ((sym=findloc(name))!=NULL && sym->compound==nestlevel)
dvander@27	2224	error(21,name); /* symbol already defined */
dvander@27	2225	/* Although valid, a local variable whose name is equal to that
dvander@27	2226	* of a global variable or to that of a local variable at a lower
dvander@27	2227	* level might indicate a bug.
dvander@27	2228	*/
dvander@27	2229	if ((sym=findloc(name))!=NULL && sym->compound!=nestlevel \|\| findglb(name,sGLOBAL)!=NULL)
dvander@27	2230	error(219,name); /* variable shadows another symbol */
dvander@118	2231	if (matchtoken('[')) {
dvander@152	2232	int _index;
dvander@152	2233	cell _code;
dvander@152	2234	int dim_ident;
dvander@152	2235	symbol *dim_sym;
dvander@152	2236	value dim_val;
dvander@152	2237	int all_constant = 1;
dvander@152	2238	int _staging = staging;
dvander@152	2239
dvander@152	2240	if (!_staging)
dvander@152	2241	stgset(TRUE);
dvander@152	2242	stgget(&_index, &_code);
dvander@152	2243
dvander@118	2244	do {
dvander@118	2245	if (numdim == sDIMEN_MAX) {
dvander@118	2246	error(53); /* exceeding maximum number of dimensions */
dvander@152	2247	return (all_constant ? iARRAY : iREFARRAY);
dvander@200	2248	} else if (numdim) { /* if */
dvander@200	2249	/* If we have a dimension on the stack, push it */
dvander@200	2250	pushreg(sPRI);
dvander@200	2251	}
dvander@152	2252	if (matchtoken(']')) {
dvander@152	2253	dim[numdim++] = 0;
dvander@152	2254	continue;
dvander@152	2255	}
dvander@152	2256	dim_ident = doexpr2(TRUE,FALSE,FALSE,FALSE,&idxtag[numdim],&dim_sym,0,&dim_val);
dvander@152	2257	if (dim_ident == iVARIABLE \|\| dim_ident == iEXPRESSION \|\| dim_ident == iARRAYCELL) {
dvander@152	2258	all_constant = 0;
dvander@118	2259	} else if (dim_ident == iCONSTEXPR) {
dvander@152	2260	dim[numdim] = dim_val.constval;
dvander@152	2261	/* :TODO: :URGENT: Make sure this still works */
dvander@152	2262	if (dim_sym && dim_sym->usage & uENUMROOT)
dvander@152	2263	enumroot = dim_sym->dim.enumlist;
dvander@152	2264	idxtag[numdim] = dim_sym ? dim_sym->tag : 0;
dvander@152	2265	#if INT_MAX < LONG_MAX
dvander@152	2266	if (dim[numdim] > INT_MAX)
dvander@152	2267	error(105); /* overflow, exceeding capacity */
dvander@152	2268	#endif
dvander@118	2269	} else {
dvander@152	2270	error(29); /* invalid expression, assumed 0 */
dvander@118	2271	}
dvander@119	2272	numdim++;
dvander@152	2273	needtoken(']');
dvander@152	2274	} while (matchtoken('['));
dvander@152	2275	if (all_constant) {
dvander@152	2276	/* Change the last dimension to be based on chars instead if we have a string */
dvander@286	2277	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@286	2278	slength = dim[numdim-1];
dvander@153	2279	dim[numdim-1] = (dim[numdim-1] + sizeof(cell)-1) / sizeof(cell);
dvander@286	2280	}
dvander@152	2281	/* Scrap the code generated */
dvander@152	2282	ident = iARRAY;
dvander@152	2283	stgdel(_index, _code);
dvander@152	2284	} else {
dvander@200	2285	if (tag == pc_tag_string && numdim && dim[numdim-1]) {
dvander@200	2286	stradjust(sPRI);
dvander@200	2287	}
dvander@200	2288	pushreg(sPRI);
dvander@152	2289	memset(dim, 0, sizeof(int)*sDIMEN_MAX);
dvander@152	2290	ident = iREFARRAY;
dvander@152	2291	genarray(numdim, autozero);
dvander@152	2292	}
dvander@152	2293	stgout(_index);
dvander@152	2294	if (!_staging)
dvander@152	2295	stgset(FALSE);
dvander@118	2296	}
dvander@27	2297	if (getstates(name))
dvander@27	2298	error(88,name); /* local variables may not have states */
dvander@27	2299	if (ident==iARRAY \|\| fstatic) {
dvander@27	2300	if (sc_alignnext) {
dvander@27	2301	aligndata(sc_dataalign);
dvander@27	2302	sc_alignnext=FALSE;
dvander@27	2303	} /* if */
dvander@27	2304	cur_lit=litidx; /* save current index in the literal table */
dvander@27	2305	initials(ident,tag,&size,dim,numdim,enumroot);
dvander@27	2306	if (size==0)
dvander@27	2307	return ident; /* error message already given */
dvander@27	2308	if (numdim==1)
dvander@27	2309	dim[0]=(int)size;
dvander@118	2310	}
dvander@27	2311	/* reserve memory (on the stack) for the variable */
dvander@27	2312	if (fstatic) {
dvander@27	2313	/* write zeros for uninitialized fields */
dvander@27	2314	while (litidx<cur_lit+size)
dvander@27	2315	litadd(0);
dvander@286	2316	sym=addvariable2(name,(cur_lit+glb_declared)*sizeof(cell),ident,sSTATIC,
dvander@286	2317	tag,dim,numdim,idxtag,slength);
dvander@118	2318	} else if (ident!=iREFARRAY) {
dvander@27	2319	declared+=(int)size; /* variables are put on stack, adjust "declared" */
dvander@286	2320	sym=addvariable2(name,-declared*sizeof(cell),ident,sLOCAL,tag,
dvander@286	2321	dim,numdim,idxtag,slength);
dvander@27	2322	if (ident==iVARIABLE) {
dvander@27	2323	assert(!staging);
dvander@27	2324	stgset(TRUE); /* start stage-buffering */
dvander@27	2325	assert(stgidx==0);
dvander@27	2326	staging_start=stgidx;
dvander@27	2327	} /* if */
dvander@27	2328	markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@27	2329	modstk(-(int)size*sizeof(cell));
dvander@117	2330	markstack(MEMUSE_STATIC, size);
dvander@27	2331	assert(curfunc!=NULL);
dvander@27	2332	assert((curfunc->usage & uNATIVE)==0);
dvander@27	2333	if (curfunc->x.stacksize<declared+1)
dvander@27	2334	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@118	2335	} else if (ident==iREFARRAY) {
dvander@118	2336	declared+=1; /* one cell for address */
dvander@118	2337	sym=addvariable(name,-declared*sizeof(cell),ident,sLOCAL,tag,dim,numdim,idxtag);
dvander@118	2338	//markexpr(sLDECL,name,-declaredsizeof(cell)); / mark for better optimization */
dvander@118	2339	/* genarray() pushes the address onto the stack, so we don't need to call modstk() here! */
dvander@118	2340	markheap(MEMUSE_DYNAMIC, 0);
dvander@119	2341	markstack(MEMUSE_STATIC, 1);
dvander@118	2342	assert(curfunc != NULL && ((curfunc->usage & uNATIVE) == 0));
dvander@118	2343	if (curfunc->x.stacksize<declared+1)
dvander@118	2344	curfunc->x.stacksize=declared+1; /* +1 for PROC opcode */
dvander@27	2345	} /* if */
dvander@27	2346	/* now that we have reserved memory for the variable, we can proceed
dvander@27	2347	* to initialize it */
dvander@27	2348	assert(sym!=NULL); /* we declared it, it must be there */
dvander@27	2349	sym->compound=nestlevel; /* for multiple declaration/shadowing check */
dvander@27	2350	if (fconst)
dvander@27	2351	sym->usage\|=uCONST;
dvander@27	2352	if (!fstatic) { /* static variables already initialized */
dvander@27	2353	if (ident==iVARIABLE) {
dvander@27	2354	/* simple variable, also supports initialization */
dvander@27	2355	int ctag = tag; /* set to "tag" by default */
dvander@27	2356	int explicit_init=FALSE;/* is the variable explicitly initialized? */
dvander@151	2357	int cident=ident;
dvander@27	2358	if (matchtoken('=')) {
dvander@27	2359	if (!autozero)
dvander@27	2360	error(10);
dvander@151	2361	cident=doexpr(FALSE,FALSE,FALSE,FALSE,&ctag,NULL,TRUE);
dvander@27	2362	explicit_init=TRUE;
dvander@27	2363	} else {
dvander@27	2364	if (autozero)
dvander@27	2365	ldconst(0,sPRI); /* uninitialized variable, set to zero */
dvander@27	2366	} /* if */
dvander@27	2367	if (autozero) {
dvander@27	2368	/* now try to save the value (still in PRI) in the variable */
dvander@27	2369	lval.sym=sym;
dvander@27	2370	lval.ident=iVARIABLE;
dvander@27	2371	lval.constval=0;
dvander@27	2372	lval.tag=tag;
dvander@27	2373	check_userop(NULL,ctag,lval.tag,2,NULL,&ctag);
dvander@27	2374	store(&lval);
dvander@27	2375	markexpr(sEXPR,NULL,0); /* full expression ends after the store */
dvander@27	2376	}
dvander@27	2377	assert(staging); /* end staging phase (optimize expression) */
dvander@27	2378	stgout(staging_start);
dvander@27	2379	stgset(FALSE);
dvander@151	2380	if (!matchtag_string(cident, ctag) && !matchtag(tag,ctag,TRUE))
dvander@27	2381	error(213); /* tag mismatch */
dvander@27	2382	/* if the variable was not explicitly initialized, reset the
dvander@27	2383	* "uWRITTEN" flag that store() set */
dvander@27	2384	if (!explicit_init)
dvander@27	2385	sym->usage &= ~uWRITTEN;
dvander@118	2386	} else if (ident!=iREFARRAY) {
dvander@27	2387	/* an array */
dvander@27	2388	assert(cur_lit>=0 && cur_lit<=litidx && litidx<=litmax);
dvander@27	2389	assert(size>0 && size>=sym->dim.array.length);
dvander@27	2390	assert(numdim>1 \|\| size==sym->dim.array.length);
dvander@27	2391	if (autozero) {
dvander@27	2392	/* final literal values that are zero make no sense to put in the literal
dvander@27	2393	* pool, because values get zero-initialized anyway; we check for this,
dvander@27	2394	* because users often explicitly initialize strings to ""
dvander@27	2395	*/
dvander@27	2396	while (litidx>cur_lit && litq[litidx-1]==0)
dvander@27	2397	litidx--;
dvander@27	2398	/* if the array is not completely filled, set all values to zero first */
dvander@27	2399	if (litidx-cur_lit<size && (ucell)size<CELL_MAX)
dvander@27	2400	fillarray(sym,size*sizeof(cell),0);
dvander@27	2401	}
dvander@27	2402	if (cur_lit<litidx) {
dvander@27	2403	/* check whether the complete array is set to a single value; if
dvander@27	2404	* it is, more compact code can be generated */
dvander@27	2405	cell first=litq[cur_lit];
dvander@27	2406	int i;
dvander@27	2407	for (i=cur_lit; i<litidx && litq[i]==first; i++)
dvander@27	2408	/* nothing */;
dvander@27	2409	if (i==litidx) {
dvander@27	2410	/* all values are the same */
dvander@27	2411	fillarray(sym,(litidx-cur_lit)*sizeof(cell),first);
dvander@27	2412	litidx=cur_lit; /* reset literal table */
dvander@27	2413	} else {
dvander@27	2414	/* copy the literals to the array */
dvander@27	2415	ldconst((cur_lit+glb_declared)*sizeof(cell),sPRI);
dvander@27	2416	copyarray(sym,(litidx-cur_lit)*sizeof(cell));
dvander@27	2417	} /* if */
dvander@27	2418	} /* if */
dvander@27	2419	} /* if */
dvander@27	2420	} /* if */
dvander@27	2421	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2422	needtoken(tTERM); /* if not comma, must be semicolumn */
dvander@27	2423	return ident;
dvander@27	2424	}
dvander@27	2425
dvander@27	2426	/* this function returns the maximum value for a cell in case of an error
dvander@27	2427	* (invalid dimension).
dvander@27	2428	*/
dvander@27	2429	static cell calc_arraysize(int dim[],int numdim,int cur)
dvander@27	2430	{
dvander@27	2431	cell subsize;
dvander@27	2432	ucell newsize;
dvander@27	2433
dvander@27	2434	/* the return value is in cells, not bytes */
dvander@27	2435	assert(cur>=0 && cur<=numdim);
dvander@27	2436	if (cur==numdim)
dvander@27	2437	return 0;
dvander@27	2438	subsize=calc_arraysize(dim,numdim,cur+1);
dvander@27	2439	newsize=dim[cur]+dim[cur]*subsize;
dvander@27	2440	if ((ucell)subsize>=CELL_MAX \|\| newsize>=CELL_MAX \|\| newsize<(ucell)subsize
dvander@27	2441	\|\| newsize*sizeof(cell)>=CELL_MAX)
dvander@27	2442	return CELL_MAX;
dvander@27	2443	return newsize;
dvander@27	2444	}
dvander@27	2445
dvander@27	2446	static cell adjust_indirectiontables(int dim[],int numdim,int cur,cell increment,
dvander@27	2447	int startlit,constvalue lastdim,int skipdim)
dvander@27	2448	{
dvander@27	2449	static int base;
dvander@27	2450	int d;
dvander@27	2451	cell accum;
dvander@27	2452
dvander@27	2453	assert(cur>=0 && cur<numdim);
dvander@27	2454	assert(increment>=0);
dvander@27	2455	assert(cur>0 && startlit==-1 \|\| startlit>=0 && startlit<=litidx);
dvander@27	2456	if (cur==0)
dvander@27	2457	base=startlit;
dvander@27	2458	if (cur==numdim-1)
dvander@27	2459	return 0;
dvander@27	2460	/* 2 or more dimensions left, fill in an indirection vector */
dvander@27	2461	assert(dim[cur]>0);
dvander@27	2462	if (dim[cur+1]>0) {
dvander@27	2463	for (d=0; d<dim[cur]; d++)
dvander@27	2464	litq[base++]=(dim[cur]+d(dim[cur+1]-1)+increment) sizeof(cell);
dvander@27	2465	accum=dim[cur]*(dim[cur+1]-1);
dvander@27	2466	} else {
dvander@27	2467	/* final dimension is variable length */
dvander@27	2468	constvalue *ld;
dvander@27	2469	assert(dim[cur+1]==0);
dvander@27	2470	assert(lastdim!=NULL);
dvander@27	2471	assert(skipdim!=NULL);
dvander@27	2472	accum=0;
dvander@27	2473	/* skip the final dimension sizes for all earlier major dimensions */
dvander@27	2474	for (d=0,ld=lastdim->next; d<*skipdim; d++,ld=ld->next) {
dvander@27	2475	assert(ld!=NULL);
dvander@27	2476	} /* for */
dvander@27	2477	for (d=0; d<dim[cur]; d++) {
dvander@27	2478	assert(ld!=NULL);
dvander@27	2479	assert(strtol(ld->name,NULL,16)==d);
dvander@27	2480	litq[base++]=(dim[cur]+accum+increment) * sizeof(cell);
dvander@27	2481	accum+=ld->value-1;
dvander@27	2482	*skipdim+=1;
dvander@27	2483	ld=ld->next;
dvander@27	2484	} /* for */
dvander@27	2485	} /* if */
dvander@27	2486	/* create the indirection tables for the lower level */
dvander@27	2487	if (cur+2<numdim) { /* are there at least 2 dimensions below this one? */
dvander@27	2488	increment+=(dim[cur]-1)dim[cur+1]; / this many indirection tables follow */
dvander@27	2489	for (d=0; d<dim[cur]; d++)
dvander@27	2490	increment+=adjust_indirectiontables(dim,numdim,cur+1,increment,-1,lastdim,skipdim);
dvander@27	2491	} /* if */
dvander@27	2492	return accum;
dvander@27	2493	}
dvander@27	2494
dvander@27	2495	/* initials
dvander@27	2496	*
dvander@27	2497	* Initialize global objects and local arrays.
dvander@27	2498	* size==array cells (count), if 0 on input, the routine counts the number of elements
dvander@27	2499	* tag==required tagname id (not the returned tag)
dvander@27	2500	*
dvander@27	2501	* Global references: litidx (altered)
dvander@27	2502	*/
dvander@27	2503	static void initials(int ident,int tag,cell *size,int dim[],int numdim,
dvander@27	2504	constvalue *enumroot)
dvander@27	2505	{
dvander@27	2506	int ctag;
dvander@27	2507	cell tablesize;
dvander@27	2508	int curlit=litidx;
dvander@27	2509	int err=0;
dvander@27	2510
faluco@202	2511	if (!autozero) {
faluco@202	2512	return;
faluco@202	2513	}
faluco@202	2514
dvander@27	2515	if (!matchtoken('=')) {
dvander@27	2516	assert(ident!=iARRAY \|\| numdim>0);
dvander@27	2517	if (ident==iARRAY && dim[numdim-1]==0) {
dvander@27	2518	/* declared as "myvar[];" which is senseless (note: this does make
dvander@27	2519	* sense in the case of a iREFARRAY, which is a function parameter)
dvander@27	2520	*/
dvander@27	2521	error(9); /* array has zero length -> invalid size */
dvander@27	2522	} /* if */
dvander@27	2523	if (ident==iARRAY) {
dvander@27	2524	assert(numdim>0 && numdim<=sDIMEN_MAX);
dvander@27	2525	*size=calc_arraysize(dim,numdim,0);
dvander@27	2526	if (*size==(cell)CELL_MAX) {
dvander@27	2527	error(9); /* array is too big -> invalid size */
dvander@27	2528	return;
dvander@27	2529	} /* if */
dvander@27	2530	/* first reserve space for the indirection vectors of the array, then
dvander@27	2531	* adjust it to contain the proper values
dvander@27	2532	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2533	*/
dvander@27	2534	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2535	litadd(0);
dvander@27	2536	if (dim[numdim-1]!=0) /* error 9 has already been given */
dvander@27	2537	adjust_indirectiontables(dim,numdim,0,0,curlit,NULL,NULL);
dvander@27	2538	} /* if */
dvander@27	2539	return;
dvander@27	2540	} /* if */
dvander@27	2541
dvander@27	2542	if (ident==iVARIABLE) {
dvander@27	2543	assert(*size==1);
dvander@27	2544	init(ident,&ctag,NULL);
dvander@27	2545	if (!matchtag(tag,ctag,TRUE))
dvander@27	2546	error(213); /* tag mismatch */
dvander@27	2547	} else {
dvander@27	2548	assert(numdim>0);
dvander@27	2549	if (numdim==1) {
dvander@27	2550	*size=initvector(ident,tag,dim[0],FALSE,enumroot,NULL);
dvander@27	2551	} else {
dvander@27	2552	int errorfound=FALSE;
dvander@27	2553	int counteddim[sDIMEN_MAX];
dvander@27	2554	int idx;
dvander@27	2555	constvalue lastdim={NULL,"",0,0}; /* sizes of the final dimension */
dvander@27	2556	int skipdim=0;
dvander@27	2557
dvander@27	2558	if (dim[numdim-1]!=0)
dvander@27	2559	size=calc_arraysize(dim,numdim,0); / calc. full size, if known */
dvander@27	2560	/* already reserve space for the indirection tables (for an array with
dvander@27	2561	* known dimensions)
dvander@27	2562	* (do not use dumpzero(), as it bypasses the literal queue)
dvander@27	2563	*/
dvander@27	2564	for (tablesize=calc_arraysize(dim,numdim-1,0); tablesize>0; tablesize--)
dvander@27	2565	litadd(0);
dvander@27	2566	/* now initialize the sub-arrays */
dvander@27	2567	memset(counteddim,0,sizeof counteddim);
dvander@27	2568	initarray(ident,tag,dim,numdim,0,curlit,counteddim,&lastdim,enumroot,&errorfound);
dvander@27	2569	/* check the specified array dimensions with the initialler counts */
dvander@27	2570	for (idx=0; idx<numdim-1; idx++) {
dvander@27	2571	if (dim[idx]==0) {
dvander@27	2572	dim[idx]=counteddim[idx];
dvander@27	2573	} else if (counteddim[idx]<dim[idx]) {
dvander@27	2574	error(52); /* array is not fully initialized */
dvander@27	2575	err++;
dvander@27	2576	} else if (counteddim[idx]>dim[idx]) {
dvander@27	2577	error(18); /* initialization data exceeds declared size */
dvander@27	2578	err++;
dvander@27	2579	} /* if */
dvander@27	2580	} /* for */
faluco@62	2581	if (numdim>1 && dim[numdim-1]==0) {
faluco@62	2582	/* also look whether, by any chance, all "counted" final dimensions are
faluco@62	2583	* the same value; if so, we can store this
faluco@62	2584	*/
faluco@62	2585	constvalue *ld=lastdim.next;
faluco@62	2586	int d,match;
faluco@62	2587	for (d=0; d<dim[numdim-2]; d++) {
faluco@62	2588	assert(ld!=NULL);
faluco@62	2589	assert(strtol(ld->name,NULL,16)==d);
faluco@62	2590	if (d==0)
faluco@62	2591	match=ld->value;
faluco@62	2592	else if (match!=ld->value)
faluco@62	2593	break;
faluco@62	2594	ld=ld->next;
faluco@62	2595	} /* for */
faluco@62	2596	if (d==dim[numdim-2])
faluco@62	2597	dim[numdim-1]=match;
faluco@62	2598	} /* if */
dvander@27	2599	/* after all arrays have been initalized, we know the (major) dimensions
dvander@27	2600	* of the array and we can properly adjust the indirection vectors
dvander@27	2601	*/
dvander@27	2602	if (err==0)
dvander@27	2603	adjust_indirectiontables(dim,numdim,0,0,curlit,&lastdim,&skipdim);
dvander@27	2604	delete_consttable(&lastdim); /* clear list of minor dimension sizes */
dvander@27	2605	} /* if */
dvander@27	2606	} /* if */
dvander@27	2607
dvander@27	2608	if (*size==0)
dvander@27	2609	size=litidx-curlit; / number of elements defined */
dvander@27	2610	}
dvander@27	2611
dvander@27	2612	static cell initarray(int ident,int tag,int dim[],int numdim,int cur,
dvander@27	2613	int startlit,int counteddim[],constvalue *lastdim,
dvander@27	2614	constvalue enumroot,int errorfound)
dvander@27	2615	{
dvander@27	2616	cell dsize,totalsize;
dvander@27	2617	int idx,abortparse;
dvander@27	2618
dvander@27	2619	assert(cur>=0 && cur<numdim);
dvander@27	2620	assert(startlit>=0);
dvander@27	2621	assert(cur+2<=numdim);/* there must be 2 dimensions or more to do */
dvander@27	2622	assert(errorfound!=NULL && *errorfound==FALSE);
dvander@27	2623	totalsize=0;
dvander@27	2624	needtoken('{');
dvander@27	2625	for (idx=0,abortparse=FALSE; !abortparse; idx++) {
dvander@27	2626	/* In case the major dimension is zero, we need to store the offset
dvander@27	2627	* to the newly detected sub-array into the indirection table; i.e.
dvander@27	2628	* this table needs to be expanded and updated.
dvander@27	2629	* In the current design, the indirection vectors for a multi-dimensional
dvander@27	2630	* array are adjusted after parsing all initiallers. Hence, it is only
dvander@27	2631	* necessary at this point to reserve space for an extra cell in the
dvander@27	2632	* indirection vector.
dvander@27	2633	*/
dvander@27	2634	if (dim[cur]==0) {
dvander@27	2635	litinsert(0,startlit);
dvander@27	2636	} else if (idx>=dim[cur]) {
dvander@27	2637	error(18); /* initialization data exceeds array size */
dvander@27	2638	break;
dvander@27	2639	} /* if */
dvander@27	2640	if (cur+2<numdim) {
dvander@27	2641	dsize=initarray(ident,tag,dim,numdim,cur+1,startlit,counteddim,
dvander@27	2642	lastdim,enumroot,errorfound);
dvander@27	2643	} else {
dvander@27	2644	dsize=initvector(ident,tag,dim[cur+1],TRUE,enumroot,errorfound);
dvander@27	2645	/* The final dimension may be variable length. We need to keep the
dvander@27	2646	* lengths of the final dimensions in order to set the indirection
dvander@27	2647	* vectors for the next-to-last dimension.
dvander@27	2648	*/
dvander@27	2649	append_constval(lastdim,itoh(idx),dsize,0);
dvander@27	2650	} /* if */
dvander@27	2651	totalsize+=dsize;
dvander@27	2652	if (*errorfound \|\| !matchtoken(','))
dvander@27	2653	abortparse=TRUE;
dvander@27	2654	} /* for */
dvander@27	2655	needtoken('}');
dvander@27	2656	assert(counteddim!=NULL);
dvander@27	2657	if (counteddim[cur]>0) {
dvander@27	2658	if (idx<counteddim[cur])
dvander@27	2659	error(52); /* array is not fully initialized */
dvander@27	2660	else if (idx>counteddim[cur])
dvander@27	2661	error(18); /* initialization data exceeds declared size */
dvander@27	2662	} /* if */
dvander@27	2663	counteddim[cur]=idx;
dvander@27	2664
dvander@27	2665	return totalsize+dim[cur]; /* size of sub-arrays + indirection vector */
dvander@27	2666	}
dvander@27	2667
dvander@27	2668	/* initvector
dvander@27	2669	* Initialize a single dimensional array
dvander@27	2670	*/
dvander@27	2671	static cell initvector(int ident,int tag,cell size,int fillzero,
dvander@27	2672	constvalue enumroot,int errorfound)
dvander@27	2673	{
dvander@27	2674	cell prev1=0,prev2=0;
faluco@202	2675	int ellips=FALSE;
dvander@27	2676	int curlit=litidx;
dvander@27	2677	int rtag,ctag;
dvander@27	2678
dvander@27	2679	assert(ident==iARRAY \|\| ident==iREFARRAY);
faluco@202	2680	if (matchtoken('{')) {
dvander@27	2681	constvalue *enumfield=(enumroot!=NULL) ? enumroot->next : NULL;
dvander@27	2682	do {
dvander@27	2683	int fieldlit=litidx;
dvander@27	2684	int matchbrace,i;
dvander@27	2685	if (matchtoken('}')) { /* to allow for trailing ',' after the initialization */
dvander@27	2686	lexpush();
dvander@27	2687	break;
dvander@27	2688	} /* if */
dvander@27	2689	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2690	break;
dvander@27	2691	/* for enumeration fields, allow another level of braces ("{...}") */
dvander@27	2692	matchbrace=0; /* preset */
dvander@27	2693	ellips=0;
dvander@27	2694	if (enumfield!=NULL)
dvander@27	2695	matchbrace=matchtoken('{');
dvander@27	2696	for ( ;; ) {
dvander@27	2697	prev2=prev1;
dvander@27	2698	prev1=init(ident,&ctag,errorfound);
dvander@27	2699	if (!matchbrace)
dvander@27	2700	break;
dvander@27	2701	if ((ellips=matchtoken(tELLIPS))!=0)
dvander@27	2702	break;
dvander@27	2703	if (!matchtoken(',')) {
dvander@27	2704	needtoken('}');
dvander@27	2705	break;
dvander@27	2706	} /* for */
dvander@27	2707	} /* for */
dvander@27	2708	/* if this array is based on an enumeration, fill the "field" up with
dvander@27	2709	* zeros, and toggle the tag
dvander@27	2710	*/
dvander@27	2711	if (enumroot!=NULL && enumfield==NULL)
dvander@27	2712	error(227); /* more initiallers than enum fields */
dvander@27	2713	rtag=tag; /* preset, may be overridden by enum field tag */
dvander@27	2714	if (enumfield!=NULL) {
dvander@27	2715	cell step;
dvander@27	2716	int cmptag=enumfield->index;
dvander@27	2717	symbol *symfield=findconst(enumfield->name,&cmptag);
dvander@27	2718	if (cmptag>1)
dvander@27	2719	error(91,enumfield->name); /* ambiguous constant, needs tag override */
dvander@27	2720	assert(symfield!=NULL);
dvander@27	2721	assert(fieldlit<litidx);
dvander@27	2722	if (litidx-fieldlit>symfield->dim.array.length)
dvander@27	2723	error(228); /* length of initialler exceeds size of the enum field */
dvander@27	2724	if (ellips) {
dvander@27	2725	step=prev1-prev2;
dvander@27	2726	} else {
dvander@27	2727	step=0;
dvander@27	2728	prev1=0;
dvander@27	2729	} /* if */
dvander@27	2730	for (i=litidx-fieldlit; i<symfield->dim.array.length; i++) {
dvander@27	2731	prev1+=step;
dvander@27	2732	litadd(prev1);
dvander@27	2733	} /* for */
dvander@27	2734	rtag=symfield->x.tags.index; /* set the expected tag to the index tag */
dvander@27	2735	enumfield=enumfield->next;
dvander@27	2736	} /* if */
dvander@27	2737	if (!matchtag(rtag,ctag,TRUE))
dvander@27	2738	error(213); /* tag mismatch */
dvander@27	2739	} while (matchtoken(',')); /* do */
dvander@27	2740	needtoken('}');
dvander@27	2741	} else {
dvander@27	2742	init(ident,&ctag,errorfound);
dvander@27	2743	if (!matchtag(tag,ctag,TRUE))
dvander@27	2744	error(213); /* tagname mismatch */
dvander@27	2745	} /* if */
dvander@27	2746	/* fill up the literal queue with a series */
dvander@27	2747	if (ellips) {
dvander@27	2748	cell step=((litidx-curlit)==1) ? (cell)0 : prev1-prev2;
dvander@27	2749	if (size==0 \|\| (litidx-curlit)==0)
dvander@27	2750	error(41); /* invalid ellipsis, array size unknown */
dvander@27	2751	else if ((litidx-curlit)==(int)size)
dvander@27	2752	error(18); /* initialisation data exceeds declared size */
dvander@27	2753	while ((litidx-curlit)<(int)size) {
dvander@27	2754	prev1+=step;
dvander@27	2755	litadd(prev1);
dvander@27	2756	} /* while */
dvander@27	2757	} /* if */
dvander@27	2758	if (fillzero && size>0) {
dvander@27	2759	while ((litidx-curlit)<(int)size)
dvander@27	2760	litadd(0);
dvander@27	2761	} /* if */
dvander@27	2762	if (size==0) {
dvander@27	2763	size=litidx-curlit; /* number of elements defined */
dvander@27	2764	} else if (litidx-curlit>(int)size) { /* e.g. "myvar[3]={1,2,3,4};" */
dvander@27	2765	error(18); /* initialisation data exceeds declared size */
dvander@27	2766	litidx=(int)size+curlit; /* avoid overflow in memory moves */
dvander@27	2767	} /* if */
dvander@27	2768	return size;
dvander@27	2769	}
dvander@27	2770
dvander@27	2771	/* init
dvander@27	2772	*
dvander@27	2773	* Evaluate one initializer.
dvander@27	2774	*/
dvander@27	2775	static cell init(int ident,int tag,int errorfound)
dvander@27	2776	{
dvander@27	2777	cell i = 0;
dvander@27	2778
dvander@27	2779	if (matchtoken(tSTRING)){
dvander@27	2780	/* lex() automatically stores strings in the literal table (and
dvander@27	2781	* increases "litidx") */
dvander@27	2782	if (ident==iVARIABLE) {
dvander@27	2783	error(6); /* must be assigned to an array */
dvander@27	2784	litidx=1; /* reset literal queue */
dvander@27	2785	} /* if */
dvander@151	2786	*tag=pc_tag_string;
dvander@27	2787	} else if (constexpr(&i,tag,NULL)){
dvander@27	2788	litadd(i); /* store expression result in literal table */
dvander@27	2789	} else {
dvander@27	2790	if (errorfound!=NULL)
dvander@27	2791	*errorfound=TRUE;
dvander@27	2792	} /* if */
dvander@27	2793	return i;
dvander@27	2794	}
dvander@27	2795
dvander@27	2796	/* needsub
dvander@27	2797	*
dvander@27	2798	* Get required array size
dvander@27	2799	*/
dvander@27	2800	static cell needsub(int tag,constvalue *enumroot)
dvander@27	2801	{
dvander@27	2802	cell val;
dvander@27	2803	symbol *sym;
dvander@27	2804
dvander@27	2805	assert(tag!=NULL);
dvander@27	2806	*tag=0;
dvander@27	2807	if (enumroot!=NULL)
dvander@27	2808	enumroot=NULL; / preset */
dvander@27	2809	if (matchtoken(']')) /* we have already seen "[" */
dvander@27	2810	return 0; /* zero size (like "char msg[]") */
dvander@27	2811
dvander@27	2812	constexpr(&val,tag,&sym); /* get value (must be constant expression) */
dvander@27	2813	if (val<0) {
dvander@27	2814	error(9); /* negative array size is invalid; assumed zero */
dvander@27	2815	val=0;
dvander@27	2816	} /* if */
dvander@27	2817	needtoken(']');
dvander@27	2818
dvander@27	2819	if (enumroot!=NULL) {
dvander@27	2820	/* get the field list for an enumeration */
dvander@27	2821	assert(enumroot==NULL);/ should have been preset */
dvander@27	2822	assert(sym==NULL \|\| sym->ident==iCONSTEXPR);
dvander@27	2823	if (sym!=NULL && (sym->usage & uENUMROOT)==uENUMROOT) {
dvander@27	2824	assert(sym->dim.enumlist!=NULL);
dvander@27	2825	*enumroot=sym->dim.enumlist;
dvander@27	2826	} /* if */
dvander@27	2827	} /* if */
dvander@27	2828
dvander@27	2829	return val; /* return array size */
dvander@27	2830	}
dvander@27	2831
dvander@27	2832	/* decl_const - declare a single constant
dvander@27	2833	*
dvander@27	2834	*/
dvander@27	2835	static void decl_const(int vclass)
dvander@27	2836	{
dvander@27	2837	char constname[sNAMEMAX+1];
dvander@27	2838	cell val;
dvander@27	2839	char *str;
dvander@27	2840	int tag,exprtag;
dvander@27	2841	int symbolline;
dvander@27	2842	symbol *sym;
dvander@27	2843
faluco@62	2844	insert_docstring_separator(); /* see comment in newfunc() */
faluco@62	2845	do {
faluco@62	2846	tag=pc_addtag(NULL);
faluco@62	2847	if (lex(&val,&str)!=tSYMBOL) /* read in (new) token */
faluco@62	2848	error(20,str); /* invalid symbol name */
faluco@62	2849	symbolline=fline; /* save line where symbol was found */
faluco@62	2850	strcpy(constname,str); /* save symbol name */
faluco@62	2851	needtoken('=');
faluco@62	2852	constexpr(&val,&exprtag,NULL); /* get value */
faluco@62	2853	/* add_constant() checks for duplicate definitions */
faluco@62	2854	if (!matchtag(tag,exprtag,FALSE)) {
faluco@62	2855	/* temporarily reset the line number to where the symbol was defined */
faluco@62	2856	int orgfline=fline;
faluco@62	2857	fline=symbolline;
faluco@62	2858	error(213); /* tagname mismatch */
faluco@62	2859	fline=orgfline;
faluco@62	2860	} /* if */
faluco@62	2861	sym=add_constant(constname,val,vclass,tag);
faluco@62	2862	if (sym!=NULL)
faluco@62	2863	sc_attachdocumentation(sym);/* attach any documenation to the constant */
faluco@62	2864	} while (matchtoken(',')); /* enddo / / more? */
dvander@27	2865	needtoken(tTERM);
dvander@27	2866	}
dvander@27	2867
dvander@167	2868	/*
dvander@167	2869	* declstruct - declare a struct type
dvander@167	2870	*/
dvander@167	2871	static void declstruct(void)
dvander@167	2872	{
dvander@167	2873	cell val;
dvander@167	2874	char *str;
dvander@167	2875	int tok;
dvander@167	2876	pstruct_t *pstruct;
dvander@167	2877	int size;
dvander@167	2878
dvander@167	2879	/* get the explicit tag (required!) */
dvander@167	2880	tok = lex(&val,&str);
dvander@167	2881	if (tok != tSYMBOL)
dvander@167	2882	{
dvander@167	2883	error(93);
dvander@167	2884	}
dvander@167	2885
dvander@167	2886	if (pstructs_find(str) != NULL)
dvander@167	2887	{
dvander@167	2888	/* :TODO: change to "struct requires unique struct name" */
dvander@167	2889	error(58);
dvander@167	2890	}
dvander@167	2891
dvander@167	2892	pstruct = pstructs_add(str);
dvander@167	2893
dvander@167	2894	needtoken('{');
dvander@167	2895	do
dvander@167	2896	{
dvander@167	2897	structarg_t arg;
dvander@167	2898	if (matchtoken('}'))
dvander@167	2899	{
dvander@167	2900	/* Quick exit */
dvander@167	2901	lexpush();
dvander@167	2902	break;
dvander@167	2903	}
dvander@167	2904	memset(&arg, 0, sizeof(structarg_t));
dvander@167	2905	tok = lex(&val,&str);
dvander@167	2906	if (tok == tCONST)
dvander@167	2907	{
dvander@167	2908	arg.fconst = 1;
dvander@167	2909	tok = lex(&val,&str);
dvander@167	2910	}
dvander@167	2911	arg.ident = 0;
dvander@167	2912	if (tok == '&')
dvander@167	2913	{
dvander@167	2914	arg.ident = iREFERENCE;
dvander@167	2915	tok = lex(&val,&str);
dvander@167	2916	}
dvander@167	2917	if (tok == tLABEL)
dvander@167	2918	{
dvander@167	2919	arg.tag = pc_addtag(str);
dvander@167	2920	tok = lex(&val,&str);
dvander@167	2921	}
dvander@167	2922	if (tok != tSYMBOL)
dvander@167	2923	{
dvander@167	2924	error(1, "-identifier-", str);
dvander@167	2925	continue;
dvander@167	2926	}
dvander@167	2927	strcpy(arg.name, str);
dvander@167	2928	if (matchtoken('['))
dvander@167	2929	{
dvander@167	2930	if (arg.ident == iREFERENCE)
dvander@167	2931	{
dvander@167	2932	error(67, arg.name);
dvander@167	2933	}
dvander@167	2934	arg.ident = iARRAY;
dvander@167	2935	do
dvander@167	2936	{
dvander@167	2937	constvalue *enumroot;
dvander@167	2938	int ignore_tag;
dvander@167	2939	if (arg.dimcount == sDIMEN_MAX)
dvander@167	2940	{
dvander@167	2941	error(53);
dvander@167	2942	break;
dvander@167	2943	}
dvander@167	2944	size = needsub(&ignore_tag, &enumroot);
dvander@167	2945	arg.dims[arg.dimcount++] = size;
dvander@167	2946	} while (matchtoken('['));
dvander@167	2947	/* Handle strings */
dvander@167	2948	if (arg.tag == pc_tag_string && arg.dims[arg.dimcount-1])
dvander@167	2949	{
dvander@167	2950	arg.dims[arg.dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@167	2951	}
dvander@167	2952	if (arg.dimcount == 1 && !arg.dims[arg.dimcount-1])
dvander@167	2953	{
dvander@167	2954	arg.ident = iREFARRAY;
dvander@167	2955	}
dvander@167	2956	} else if (!arg.ident) {
dvander@167	2957	arg.ident = iVARIABLE;
dvander@167	2958	}
dvander@167	2959	if (pstructs_addarg(pstruct, &arg) == NULL)
dvander@167	2960	{
dvander@167	2961	/* :TODO: change to "struct member name appears more than once" */
dvander@167	2962	error(58);
dvander@167	2963	}
dvander@167	2964	} while (matchtoken(','));
dvander@167	2965	needtoken('}');
dvander@167	2966	matchtoken(';'); /* eat up optional semicolon */
dvander@167	2967	}
dvander@167	2968
dvander@167	2969
dvander@167	2970	/**
dvander@167	2971	* dofuncenum - declare function enumerations
dvander@132	2972	*/
dvander@132	2973	static void dofuncenum(void)
dvander@132	2974	{
dvander@132	2975	cell val;
dvander@132	2976	char str,ptr;
dvander@132	2977	char tagname[sNAMEMAX+1];
dvander@132	2978	constvalue *cur;
dvander@132	2979	funcenum_t *fenum = NULL;
dvander@132	2980	int i;
dvander@132	2981
dvander@132	2982	/* get the explicit tag (required!) */
dvander@132	2983	int l = lex(&val,&str);
dvander@132	2984	if (l != tSYMBOL)
dvander@132	2985	{
faluco@138	2986	error(93);
dvander@132	2987	}
dvander@132	2988
dvander@132	2989	/* This tag can't already exist! */
dvander@132	2990	cur=tagname_tab.next;
dvander@132	2991	while (cur)
dvander@132	2992	{
dvander@132	2993	if (strcmp(cur->name, str) == 0)
dvander@132	2994	{
dvander@132	2995	/* Another bad one... */
dvander@132	2996	if (!(cur->value & FUNCTAG))
dvander@132	2997	{
faluco@138	2998	error(94);
dvander@132	2999	}
dvander@132	3000	break;
dvander@132	3001	}
dvander@132	3002	cur = cur->next;
dvander@132	3003	}
dvander@132	3004	strcpy(tagname, str);
dvander@132	3005
dvander@132	3006	fenum = funcenums_add(tagname);
dvander@132	3007
dvander@132	3008	needtoken('{');
dvander@132	3009	do
dvander@132	3010	{
dvander@132	3011	functag_t func;
dvander@132	3012	if (matchtoken('}'))
dvander@132	3013	{
dvander@132	3014	/* Quick exit */
dvander@132	3015	lexpush();
dvander@132	3016	break;
dvander@132	3017	}
dvander@132	3018	memset(&func, 0, sizeof(func));
dvander@132	3019	func.ret_tag = pc_addtag(NULL); /* Get the return tag */
dvander@132	3020	l = lex(&val, &str);
dvander@132	3021	if (l == tFORWARD)
dvander@132	3022	{
dvander@132	3023	func.type = uFORWARD;
dvander@132	3024	} else if (l == tPUBLIC) {
dvander@132	3025	func.type = uPUBLIC;
dvander@132	3026	} else {
dvander@136	3027	error(1, "-forward,public-", str);
dvander@132	3028	}
dvander@132	3029	needtoken('(');
dvander@132	3030	do
dvander@132	3031	{
dvander@132	3032	funcarg_t *arg = &(func.args[func.argcount]);
dvander@132	3033
dvander@132	3034	/* Quick exit */
dvander@132	3035	if (matchtoken(')'))
dvander@132	3036	{
dvander@132	3037	lexpush();
dvander@132	3038	break;
dvander@132	3039	}
dvander@132	3040	l = lex(&val, &str);
dvander@132	3041	if (l == '&')
dvander@132	3042	{
dvander@132	3043	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3044	{
dvander@132	3045	error(1, "-identifier-", "&");
dvander@132	3046	}
dvander@132	3047	arg->ident = iREFERENCE;
dvander@132	3048	} else if (l == tCONST) {
dvander@132	3049	if ((arg->ident != iVARIABLE && arg->ident != 0) \|\| arg->tagcount > 0)
dvander@132	3050	{
dvander@132	3051	error(1, "-identifier-", "const");
dvander@132	3052	}
dvander@132	3053	arg->fconst=TRUE;
dvander@132	3054	} else if (l == tLABEL) {
dvander@132	3055	if (arg->tagcount > 0)
dvander@132	3056	{
dvander@132	3057	error(1, "-identifier-", "-tagname-");
dvander@132	3058	}
dvander@132	3059	arg->tags[arg->tagcount++] = pc_addtag(str);
dvander@132	3060	#if 0
dvander@132	3061	while (arg->tagcount < sTAGS_MAX)
dvander@132	3062	{
dvander@132	3063	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@132	3064	{
dvander@132	3065	break;
dvander@132	3066	}
dvander@132	3067	tokeninfo(&val, &ptr);
dvander@132	3068	arg->tags[arg->tagcount++] = pc_addtag(ptr);
dvander@132	3069	if (matchtoken('}'))
dvander@132	3070	{
dvander@132	3071	break;
dvander@132	3072	}
dvander@132	3073	needtoken(',');
dvander@132	3074	}
dvander@132	3075	needtoken(':');
dvander@132	3076	#endif
dvander@132	3077	l=tLABEL;
dvander@132	3078	} else if (l == tSYMBOL) {
dvander@132	3079	if (func.argcount >= sARGS_MAX)
dvander@132	3080	{
dvander@132	3081	error(45);
dvander@132	3082	}
dvander@132	3083	if (str[0] == PUBLIC_CHAR)
dvander@132	3084	{
dvander@132	3085	error(56, str);
dvander@132	3086	}
dvander@132	3087	if (matchtoken('['))
dvander@132	3088	{
dvander@151	3089	cell size;
dvander@132	3090	if (arg->ident == iREFERENCE)
dvander@132	3091	{
dvander@132	3092	error(67, str);
dvander@132	3093	}
dvander@132	3094	do
dvander@132	3095	{
dvander@132	3096	constvalue *enumroot;
dvander@132	3097	int ignore_tag;
dvander@132	3098	if (arg->dimcount == sDIMEN_MAX)
dvander@132	3099	{
dvander@132	3100	error(53);
dvander@132	3101	break;
dvander@132	3102	}
dvander@132	3103	size = needsub(&ignore_tag, &enumroot);
dvander@132	3104	arg->dims[arg->dimcount] = size;
dvander@132	3105	arg->dimcount += 1;
dvander@132	3106	} while (matchtoken('['));
dvander@151	3107	/* Handle strings */
dvander@167	3108	if ((arg->tagcount == 1 && arg->tags[0] == pc_tag_string)
dvander@167	3109	&& arg->dims[arg->dimcount-1])
dvander@151	3110	{
dvander@151	3111	arg->dims[arg->dimcount-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3112	}
dvander@132	3113	arg->ident=iREFARRAY;
dvander@132	3114	} else if (arg->ident == 0) {
dvander@132	3115	arg->ident = iVARIABLE;
dvander@132	3116	}
dvander@132	3117
dvander@132	3118	if (matchtoken('='))
dvander@132	3119	{
dvander@132	3120	needtoken('0');
dvander@132	3121	arg->ommittable = TRUE;
dvander@132	3122	func.ommittable = TRUE;
dvander@132	3123	} else if (func.ommittable) {
faluco@138	3124	error(95);
dvander@132	3125	}
dvander@132	3126	func.argcount++;
dvander@132	3127	} else if (l == tELLIPS) {
dvander@132	3128	if (arg->ident == iVARIABLE)
dvander@132	3129	{
dvander@132	3130	error(10);
dvander@132	3131	}
dvander@132	3132	arg->ident = iVARARGS;
dvander@132	3133	func.argcount++;
dvander@132	3134	} else {
dvander@132	3135	error(10);
dvander@132	3136	}
dvander@132	3137	} while (l == '&' \|\| l == tLABEL \|\| l == tCONST \|\| l != tELLIPS && matchtoken(','));
dvander@132	3138	needtoken(')');
dvander@132	3139	for (i=0; i<func.argcount; i++)
dvander@132	3140	{
dvander@132	3141	if (func.args[i].tagcount == 0)
dvander@132	3142	{
dvander@132	3143	func.args[i].tags[0] = 0;
dvander@132	3144	func.args[i].tagcount = 1;
dvander@132	3145	}
dvander@132	3146	}
dvander@132	3147	functags_add(fenum, &func);
dvander@132	3148	} while (matchtoken(','));
dvander@132	3149	needtoken('}');
dvander@132	3150	matchtoken(';'); /* eat an optional semicolon. nom nom nom */
dvander@132	3151	errorset(sRESET, 0);
dvander@132	3152	}
dvander@132	3153
dvander@27	3154	/* decl_enum - declare enumerated constants
dvander@27	3155	*
dvander@27	3156	*/
dvander@27	3157	static void decl_enum(int vclass)
dvander@27	3158	{
dvander@27	3159	char enumname[sNAMEMAX+1],constname[sNAMEMAX+1];
dvander@27	3160	cell val,value,size;
dvander@27	3161	char *str;
dvander@27	3162	int tag,explicittag;
dvander@27	3163	cell increment,multiplier;
dvander@27	3164	constvalue *enumroot;
dvander@27	3165	symbol *enumsym;
dvander@27	3166
dvander@27	3167	/* get an explicit tag, if any (we need to remember whether an explicit
dvander@27	3168	* tag was passed, even if that explicit tag was "_:", so we cannot call
dvander@27	3169	* pc_addtag() here
dvander@27	3170	*/
dvander@27	3171	if (lex(&val,&str)==tLABEL) {
dvander@27	3172	tag=pc_addtag(str);
dvander@27	3173	explicittag=TRUE;
dvander@27	3174	} else {
dvander@27	3175	lexpush();
dvander@27	3176	tag=0;
dvander@27	3177	explicittag=FALSE;
dvander@27	3178	} /* if */
dvander@27	3179
dvander@27	3180	/* get optional enum name (also serves as a tag if no explicit tag was set) */
dvander@27	3181	if (lex(&val,&str)==tSYMBOL) { /* read in (new) token */
dvander@27	3182	strcpy(enumname,str); /* save enum name (last constant) */
dvander@27	3183	if (!explicittag)
dvander@27	3184	tag=pc_addtag(enumname);
dvander@27	3185	} else {
dvander@27	3186	lexpush(); /* analyze again */
dvander@27	3187	enumname[0]='\0';
dvander@27	3188	} /* if */
dvander@27	3189
dvander@27	3190	/* get increment and multiplier */
dvander@27	3191	increment=1;
dvander@27	3192	multiplier=1;
dvander@27	3193	if (matchtoken('(')) {
dvander@27	3194	if (matchtoken(taADD)) {
dvander@27	3195	constexpr(&increment,NULL,NULL);
dvander@27	3196	} else if (matchtoken(taMULT)) {
dvander@27	3197	constexpr(&multiplier,NULL,NULL);
dvander@27	3198	} else if (matchtoken(taSHL)) {
dvander@27	3199	constexpr(&val,NULL,NULL);
dvander@27	3200	while (val-->0)
dvander@27	3201	multiplier*=2;
dvander@27	3202	} /* if */
dvander@27	3203	needtoken(')');
dvander@27	3204	} /* if */
dvander@27	3205
dvander@27	3206	if (strlen(enumname)>0) {
dvander@27	3207	/* already create the root symbol, so the fields can have it as their "parent" */
dvander@27	3208	enumsym=add_constant(enumname,0,vclass,tag);
dvander@27	3209	if (enumsym!=NULL)
dvander@27	3210	enumsym->usage \|= uENUMROOT;
dvander@27	3211	/* start a new list for the element names */
dvander@27	3212	if ((enumroot=(constvalue*)malloc(sizeof(constvalue)))==NULL)
dvander@27	3213	error(103); /* insufficient memory (fatal error) */
dvander@27	3214	memset(enumroot,0,sizeof(constvalue));
dvander@27	3215	} else {
dvander@27	3216	enumsym=NULL;
dvander@27	3217	enumroot=NULL;
dvander@27	3218	} /* if */
dvander@27	3219
dvander@27	3220	needtoken('{');
dvander@27	3221	/* go through all constants */
dvander@27	3222	value=0; /* default starting value */
dvander@27	3223	do {
dvander@27	3224	int idxtag,fieldtag;
dvander@27	3225	symbol *sym;
dvander@27	3226	if (matchtoken('}')) { /* quick exit if '}' follows ',' */
dvander@27	3227	lexpush();
dvander@27	3228	break;
dvander@27	3229	} /* if */
dvander@27	3230	idxtag=pc_addtag(NULL); /* optional explicit item tag */
dvander@27	3231	if (needtoken(tSYMBOL)) { /* read in (new) token */
dvander@27	3232	tokeninfo(&val,&str); /* get the information */
dvander@27	3233	strcpy(constname,str); /* save symbol name */
dvander@27	3234	} else {
dvander@27	3235	constname[0]='\0';
dvander@27	3236	} /* if */
dvander@27	3237	size=increment; /* default increment of 'val' */
dvander@27	3238	fieldtag=0; /* default field tag */
dvander@27	3239	if (matchtoken('[')) {
dvander@27	3240	constexpr(&size,&fieldtag,NULL); /* get size */
dvander@27	3241	needtoken(']');
dvander@27	3242	} /* if */
dvander@151	3243	/* :TODO: do we need a size modifier here for pc_tag_string? */
dvander@27	3244	if (matchtoken('='))
dvander@27	3245	constexpr(&value,NULL,NULL); /* get value */
dvander@27	3246	/* add_constant() checks whether a variable (global or local) or
dvander@27	3247	* a constant with the same name already exists
dvander@27	3248	*/
dvander@27	3249	sym=add_constant(constname,value,vclass,tag);
dvander@27	3250	if (sym==NULL)
dvander@27	3251	continue; /* error message already given */
dvander@27	3252	/* set the item tag and the item size, for use in indexing arrays */
dvander@27	3253	sym->x.tags.index=idxtag;
dvander@27	3254	sym->x.tags.field=fieldtag;
dvander@27	3255	sym->dim.array.length=size;
dvander@27	3256	sym->dim.array.level=0;
dvander@286	3257	sym->dim.array.slength=0;
dvander@27	3258	sym->parent=enumsym;
dvander@27	3259	/* add the constant to a separate list as well */
dvander@27	3260	if (enumroot!=NULL) {
dvander@27	3261	sym->usage \|= uENUMFIELD;
dvander@27	3262	append_constval(enumroot,constname,value,tag);
dvander@27	3263	} /* if */
dvander@27	3264	if (multiplier==1)
dvander@27	3265	value+=size;
dvander@27	3266	else
dvander@27	3267	value=sizemultiplier;
dvander@27	3268	} while (matchtoken(','));
dvander@27	3269	needtoken('}'); /* terminates the constant list */
dvander@27	3270	matchtoken(';'); /* eat an optional ; */
dvander@27	3271
dvander@27	3272	/* set the enum name to the "next" value (typically the last value plus one) */
dvander@27	3273	if (enumsym!=NULL) {
dvander@27	3274	assert((enumsym->usage & uENUMROOT)!=0);
dvander@27	3275	enumsym->addr=value;
dvander@27	3276	/* assign the constant list */
dvander@27	3277	assert(enumroot!=NULL);
dvander@27	3278	enumsym->dim.enumlist=enumroot;
dvander@27	3279	sc_attachdocumentation(enumsym); /* attach any documenation to the enumeration */
dvander@27	3280	} /* if */
dvander@27	3281	}
dvander@27	3282
dvander@27	3283	static int getstates(const char *funcname)
dvander@27	3284	{
dvander@27	3285	char fsaname[sNAMEMAX+1],statename[sNAMEMAX+1];
dvander@27	3286	cell val;
dvander@27	3287	char *str;
dvander@27	3288	constvalue *automaton;
dvander@27	3289	constvalue *state;
dvander@27	3290	int fsa,islabel;
dvander@27	3291	int *list;
dvander@27	3292	int count,listsize,state_id;
dvander@27	3293
dvander@27	3294	if (!matchtoken('<'))
dvander@27	3295	return 0;
dvander@27	3296	if (matchtoken('>'))
dvander@27	3297	return -1; /* special construct: all other states (fall-back) */
dvander@27	3298
dvander@27	3299	count=0;
dvander@27	3300	listsize=0;
dvander@27	3301	list=NULL;
dvander@27	3302	fsa=-1;
dvander@27	3303
dvander@27	3304	do {
dvander@27	3305	if (!(islabel=matchtoken(tLABEL)) && !needtoken(tSYMBOL))
dvander@27	3306	break;
dvander@27	3307	tokeninfo(&val,&str);
dvander@27	3308	assert(strlen(str)<sizeof fsaname);
dvander@27	3309	strcpy(fsaname,str); /* assume this is the name of the automaton */
dvander@27	3310	if (islabel \|\| matchtoken(':')) {
dvander@27	3311	/* token is an automaton name, add the name and get a new token */
dvander@27	3312	if (!needtoken(tSYMBOL))
dvander@27	3313	break;
dvander@27	3314	tokeninfo(&val,&str);
dvander@27	3315	assert(strlen(str)<sizeof statename);
dvander@27	3316	strcpy(statename,str);
dvander@27	3317	} else {
dvander@27	3318	/* the token was the state name (part of an anynymous automaton) */
dvander@27	3319	assert(strlen(fsaname)<sizeof statename);
dvander@27	3320	strcpy(statename,fsaname);
dvander@27	3321	fsaname[0]='\0';
dvander@27	3322	} /* if */
dvander@27	3323	if (fsa<0 \|\| fsaname[0]!='\0') {
dvander@27	3324	automaton=automaton_add(fsaname);
dvander@27	3325	assert(automaton!=NULL);
dvander@27	3326	if (fsa>=0 && automaton->index!=fsa)
dvander@27	3327	error(83,funcname); /* multiple automatons for a single function/variable */
dvander@27	3328	fsa=automaton->index;
dvander@27	3329	} /* if */
dvander@27	3330	state=state_add(statename,fsa);
dvander@27	3331	/* add this state to the state combination list (it will be attached to the
dvander@27	3332	* automaton later) */
dvander@27	3333	state_buildlist(&list,&listsize,&count,(int)state->value);
dvander@27	3334	} while (matchtoken(','));
dvander@27	3335	needtoken('>');
dvander@27	3336
dvander@27	3337	if (count>0) {
dvander@27	3338	assert(automaton!=NULL);
dvander@27	3339	assert(fsa>=0);
dvander@27	3340	state_id=state_addlist(list,count,fsa);
dvander@27	3341	assert(state_id>0);
dvander@27	3342	} else {
dvander@27	3343	/* error is already given */
dvander@27	3344	state_id=0;
dvander@27	3345	} /* if */
dvander@27	3346	if (list!=NULL)
dvander@27	3347	free(list);
dvander@27	3348
dvander@27	3349	return state_id;
dvander@27	3350	}
dvander@27	3351
dvander@27	3352	static void attachstatelist(symbol *sym, int state_id)
dvander@27	3353	{
dvander@27	3354	assert(sym!=NULL);
dvander@27	3355	if ((sym->usage & uDEFINE)!=0 && (sym->states==NULL \|\| state_id==0))
dvander@27	3356	error(21,sym->name); /* function already defined, either without states or the current definition has no states */
dvander@27	3357
dvander@27	3358	if (state_id!=0) {
dvander@27	3359	/* add the state list id */
dvander@27	3360	constvalue *stateptr;
dvander@27	3361	if (sym->states==NULL) {
dvander@27	3362	if ((sym->states=(constvalue*)malloc(sizeof(constvalue)))==NULL)
dvander@27	3363	error(103); /* insufficient memory (fatal error) */
dvander@27	3364	memset(sym->states,0,sizeof(constvalue));
dvander@27	3365	} /* if */
dvander@27	3366	/* see whether the id already exists (add new state only if it does not
dvander@27	3367	* yet exist
dvander@27	3368	*/
dvander@27	3369	assert(sym->states!=NULL);
dvander@27	3370	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index!=state_id; stateptr=stateptr->next)
dvander@27	3371	/* nothing */;
dvander@27	3372	assert(state_id<=SHRT_MAX);
dvander@27	3373	if (stateptr==NULL)
dvander@27	3374	append_constval(sym->states,"",code_idx,(short)state_id);
dvander@27	3375	else if (stateptr->value==0)
dvander@27	3376	stateptr->value=code_idx;
dvander@27	3377	else
dvander@27	3378	error(84,sym->name);
dvander@27	3379	/* also check for another conflicting situation: a fallback function
dvander@27	3380	* without any states
dvander@27	3381	*/
dvander@27	3382	if (state_id==-1 && sc_status!=statFIRST) {
dvander@27	3383	/* in the second round, all states should have been accumulated */
dvander@27	3384	assert(sym->states!=NULL);
dvander@27	3385	for (stateptr=sym->states->next; stateptr!=NULL && stateptr->index==-1; stateptr=stateptr->next)
dvander@27	3386	/* nothing */;
dvander@27	3387	if (stateptr==NULL)
dvander@27	3388	error(85,sym->name); /* no states are defined for this function */
dvander@27	3389	} /* if */
dvander@27	3390	} /* if */
dvander@27	3391	}
dvander@27	3392
dvander@27	3393	/*
dvander@27	3394	* Finds a function in the global symbol table or creates a new entry.
dvander@27	3395	* It does some basic processing and error checking.
dvander@27	3396	*/
dvander@27	3397	SC_FUNC symbol fetchfunc(char name,int tag)
dvander@27	3398	{
dvander@27	3399	symbol *sym;
dvander@27	3400
dvander@27	3401	if ((sym=findglb(name,sGLOBAL))!=0) { /* already in symbol table? */
dvander@27	3402	if (sym->ident!=iFUNCTN) {
dvander@27	3403	error(21,name); /* yes, but not as a function */
dvander@27	3404	return NULL; /* make sure the old symbol is not damaged */
dvander@27	3405	} else if ((sym->usage & uNATIVE)!=0) {
dvander@27	3406	error(21,name); /* yes, and it is a native */
dvander@27	3407	} /* if */
dvander@27	3408	assert(sym->vclass==sGLOBAL);
dvander@27	3409	if ((sym->usage & uPROTOTYPED)!=0 && sym->tag!=tag)
dvander@27	3410	error(25); /* mismatch from earlier prototype */
dvander@27	3411	if ((sym->usage & uDEFINE)==0) {
dvander@27	3412	/* as long as the function stays undefined, update the address and the tag */
dvander@27	3413	if (sym->states==NULL)
dvander@27	3414	sym->addr=code_idx;
dvander@27	3415	sym->tag=tag;
dvander@27	3416	} /* if */
dvander@27	3417	} else {
dvander@27	3418	/* don't set the "uDEFINE" flag; it may be a prototype */
dvander@27	3419	sym=addsym(name,code_idx,iFUNCTN,sGLOBAL,tag,0);
dvander@27	3420	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	3421	/* assume no arguments */
dvander@27	3422	sym->dim.arglist=(arginfo)malloc(1sizeof(arginfo));
dvander@27	3423	sym->dim.arglist[0].ident=0;
dvander@27	3424	/* set library ID to NULL (only for native functions) */
dvander@27	3425	sym->x.lib=NULL;
dvander@27	3426	/* set the required stack size to zero (only for non-native functions) */
dvander@27	3427	sym->x.stacksize=1; /* 1 for PROC opcode */
dvander@27	3428	} /* if */
ds@52	3429	if (pc_deprecate!=NULL) {
dvander@27	3430	assert(sym!=NULL);
ds@52	3431	sym->flags\|=flgDEPRECATED;
dvander@27	3432	if (sc_status==statWRITE) {
dvander@27	3433	if (sym->documentation!=NULL) {
dvander@27	3434	free(sym->documentation);
dvander@27	3435	sym->documentation=NULL;
dvander@27	3436	} /* if */
ds@52	3437	sym->documentation=pc_deprecate;
dvander@27	3438	} else {
ds@52	3439	free(pc_deprecate);
dvander@27	3440	} /* if */
ds@52	3441	pc_deprecate=NULL;
dvander@27	3442	} /* if */
dvander@27	3443
dvander@27	3444	return sym;
dvander@27	3445	}
dvander@27	3446
dvander@27	3447	/* This routine adds symbolic information for each argument.
dvander@27	3448	*/
dvander@27	3449	static void define_args(void)
dvander@27	3450	{
dvander@27	3451	symbol *sym;
dvander@27	3452
dvander@27	3453	/* At this point, no local variables have been declared. All
dvander@27	3454	* local symbols are function arguments.
dvander@27	3455	*/
dvander@27	3456	sym=loctab.next;
dvander@27	3457	while (sym!=NULL) {
dvander@27	3458	assert(sym->ident!=iLABEL);
dvander@27	3459	assert(sym->vclass==sLOCAL);
dvander@27	3460	markexpr(sLDECL,sym->name,sym->addr); /* mark for better optimization */
dvander@27	3461	sym=sym->next;
dvander@27	3462	} /* while */
dvander@27	3463	}
dvander@27	3464
dvander@27	3465	static int operatorname(char *name)
dvander@27	3466	{
dvander@27	3467	int opertok;
dvander@27	3468	char *str;
dvander@27	3469	cell val;
dvander@27	3470
dvander@27	3471	assert(name!=NULL);
dvander@27	3472
dvander@27	3473	/* check the operator */
dvander@27	3474	opertok=lex(&val,&str);
dvander@27	3475	switch (opertok) {
dvander@27	3476	case '+':
dvander@27	3477	case '-':
dvander@27	3478	case '*':
dvander@27	3479	case '/':
dvander@27	3480	case '%':
dvander@27	3481	case '>':
dvander@27	3482	case '<':
dvander@27	3483	case '!':
dvander@27	3484	case '~':
dvander@27	3485	case '=':
dvander@27	3486	name[0]=(char)opertok;
dvander@27	3487	name[1]='\0';
dvander@27	3488	break;
dvander@27	3489	case tINC:
dvander@27	3490	strcpy(name,"++");
dvander@27	3491	break;
dvander@27	3492	case tDEC:
dvander@27	3493	strcpy(name,"--");
dvander@27	3494	break;
dvander@27	3495	case tlEQ:
dvander@27	3496	strcpy(name,"==");
dvander@27	3497	break;
dvander@27	3498	case tlNE:
dvander@27	3499	strcpy(name,"!=");
dvander@27	3500	break;
dvander@27	3501	case tlLE:
dvander@27	3502	strcpy(name,"<=");
dvander@27	3503	break;
dvander@27	3504	case tlGE:
dvander@27	3505	strcpy(name,">=");
dvander@27	3506	break;
dvander@27	3507	default:
dvander@27	3508	name[0]='\0';
dvander@27	3509	error(7); /* operator cannot be redefined (or bad operator name) */
dvander@27	3510	return 0;
dvander@27	3511	} /* switch */
dvander@27	3512
dvander@27	3513	return opertok;
dvander@27	3514	}
dvander@27	3515
dvander@27	3516	static int operatoradjust(int opertok,symbol sym,char opername,int resulttag)
dvander@27	3517	{
dvander@27	3518	int tags[2]={0,0};
dvander@27	3519	int count=0;
dvander@27	3520	arginfo *arg;
dvander@27	3521	char tmpname[sNAMEMAX+1];
dvander@27	3522	symbol *oldsym;
dvander@27	3523
dvander@27	3524	if (opertok==0)
dvander@27	3525	return TRUE;
dvander@27	3526
dvander@27	3527	assert(sym!=NULL && sym->ident==iFUNCTN && sym->dim.arglist!=NULL);
dvander@27	3528	/* count arguments and save (first two) tags */
dvander@27	3529	while (arg=&sym->dim.arglist[count], arg->ident!=0) {
dvander@27	3530	if (count<2) {
dvander@27	3531	if (arg->numtags>1)
dvander@27	3532	error(65,count+1); /* function argument may only have a single tag */
dvander@27	3533	else if (arg->numtags==1)
dvander@27	3534	tags[count]=arg->tags[0];
dvander@27	3535	} /* if */
dvander@27	3536	if (opertok=='~' && count==0) {
dvander@27	3537	if (arg->ident!=iREFARRAY)
dvander@27	3538	error(73,arg->name);/* must be an array argument */
dvander@27	3539	} else {
dvander@27	3540	if (arg->ident!=iVARIABLE)
dvander@27	3541	error(66,arg->name);/* must be non-reference argument */
dvander@27	3542	} /* if */
dvander@27	3543	if (arg->hasdefault)
dvander@27	3544	error(59,arg->name); /* arguments of an operator may not have a default value */
dvander@27	3545	count++;
dvander@27	3546	} /* while */
dvander@27	3547
dvander@27	3548	/* for '!', '++' and '--', count must be 1
dvander@27	3549	* for '-', count may be 1 or 2
dvander@27	3550	* for '=', count must be 1, and the resulttag is also important
dvander@27	3551	* for all other (binary) operators and the special '~' operator, count must be 2
dvander@27	3552	*/
dvander@27	3553	switch (opertok) {
dvander@27	3554	case '!':
dvander@27	3555	case '=':
dvander@27	3556	case tINC:
dvander@27	3557	case tDEC:
dvander@27	3558	if (count!=1)
dvander@27	3559	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3560	break;
dvander@27	3561	case '-':
dvander@27	3562	if (count!=1 && count!=2)
dvander@27	3563	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3564	break;
dvander@27	3565	default:
dvander@27	3566	if (count!=2)
dvander@27	3567	error(62); /* number or placement of the operands does not fit the operator */
dvander@27	3568	} /* switch */
dvander@27	3569
dvander@27	3570	if (tags[0]==0 && (opertok!='=' && tags[1]==0 \|\| opertok=='=' && resulttag==0))
dvander@27	3571	error(64); /* cannot change predefined operators */
dvander@27	3572
dvander@27	3573	/* change the operator name */
dvander@27	3574	assert(strlen(opername)>0);
dvander@27	3575	operator_symname(tmpname,opername,tags[0],tags[1],count,resulttag);
dvander@27	3576	if ((oldsym=findglb(tmpname,sGLOBAL))!=NULL) {
dvander@27	3577	int i;
dvander@27	3578	if ((oldsym->usage & uDEFINE)!=0) {
dvander@27	3579	char errname[2*sNAMEMAX+16];
dvander@27	3580	funcdisplayname(errname,tmpname);
dvander@27	3581	error(21,errname); /* symbol already defined */
dvander@27	3582	} /* if */
dvander@27	3583	sym->usage\|=oldsym->usage; /* copy flags from the previous definition */
dvander@27	3584	for (i=0; i<oldsym->numrefers; i++)
dvander@27	3585	if (oldsym->refer[i]!=NULL)
dvander@27	3586	refer_symbol(sym,oldsym->refer[i]);
dvander@27	3587	delete_symbol(&glbtab,oldsym);
dvander@27	3588	} /* if */
dvander@27	3589	strcpy(sym->name,tmpname);
dvander@27	3590	sym->hash=namehash(sym->name);/* calculate new hash */
dvander@27	3591
dvander@27	3592	/* operators should return a value, except the '~' operator */
dvander@27	3593	if (opertok!='~')
dvander@27	3594	sym->usage \|= uRETVALUE;
dvander@27	3595
dvander@27	3596	return TRUE;
dvander@27	3597	}
dvander@27	3598
dvander@27	3599	static int check_operatortag(int opertok,int resulttag,char *opername)
dvander@27	3600	{
dvander@27	3601	assert(opername!=NULL && strlen(opername)>0);
dvander@27	3602	switch (opertok) {
dvander@27	3603	case '!':
dvander@27	3604	case '<':
dvander@27	3605	case '>':
dvander@27	3606	case tlEQ:
dvander@27	3607	case tlNE:
dvander@27	3608	case tlLE:
dvander@27	3609	case tlGE:
dvander@27	3610	if (resulttag!=pc_addtag("bool")) {
dvander@27	3611	error(63,opername,"bool:"); /* operator X requires a "bool:" result tag */
dvander@27	3612	return FALSE;
dvander@27	3613	} /* if */
dvander@27	3614	break;
dvander@27	3615	case '~':
dvander@27	3616	if (resulttag!=0) {
dvander@27	3617	error(63,opername,"_:"); /* operator "~" requires a "_:" result tag */
dvander@27	3618	return FALSE;
dvander@27	3619	} /* if */
dvander@27	3620	break;
dvander@27	3621	} /* switch */
dvander@27	3622	return TRUE;
dvander@27	3623	}
dvander@27	3624
dvander@27	3625	static char tag2str(char dest,int tag)
dvander@27	3626	{
dvander@27	3627	tag &= TAGMASK;
dvander@27	3628	assert(tag>=0);
dvander@27	3629	sprintf(dest,"0%x",tag);
dvander@27	3630	return isdigit(dest[1]) ? &dest[1] : dest;
dvander@27	3631	}
dvander@27	3632
dvander@27	3633	SC_FUNC char operator_symname(char symname,char *opername,int tag1,int tag2,int numtags,int resulttag)
dvander@27	3634	{
dvander@27	3635	char tagstr1[10], tagstr2[10];
dvander@27	3636	int opertok;
dvander@27	3637
dvander@27	3638	assert(numtags>=1 && numtags<=2);
dvander@27	3639	opertok= (opername[1]=='\0') ? opername[0] : 0;
dvander@27	3640	if (opertok=='=')
dvander@27	3641	sprintf(symname,"%s%s%s",tag2str(tagstr1,resulttag),opername,tag2str(tagstr2,tag1));
dvander@27	3642	else if (numtags==1 \|\| opertok=='~')
dvander@27	3643	sprintf(symname,"%s%s",opername,tag2str(tagstr1,tag1));
dvander@27	3644	else
dvander@27	3645	sprintf(symname,"%s%s%s",tag2str(tagstr1,tag1),opername,tag2str(tagstr2,tag2));
dvander@27	3646	return symname;
dvander@27	3647	}
dvander@27	3648
dvander@27	3649	static int parse_funcname(char fname,int tag1,int tag2,char opname)
dvander@27	3650	{
dvander@27	3651	char ptr,name;
dvander@27	3652	int unary;
dvander@27	3653
dvander@27	3654	/* tags are only positive, so if the function name starts with a '-',
dvander@27	3655	* the operator is an unary '-' or '--' operator.
dvander@27	3656	*/
dvander@27	3657	if (*fname=='-') {
dvander@27	3658	*tag1=0;
dvander@27	3659	unary=TRUE;
dvander@27	3660	ptr=fname;
dvander@27	3661	} else {
dvander@27	3662	*tag1=(int)strtol(fname,&ptr,16);
dvander@27	3663	unary= ptr==fname; /* unary operator if it doesn't start with a tag name */
dvander@27	3664	} /* if */
dvander@27	3665	assert(!unary \|\| *tag1==0);
dvander@27	3666	assert(*ptr!='\0');
dvander@27	3667	for (name=opname; !isdigit(*ptr); )
dvander@27	3668	name++ = ptr++;
dvander@27	3669	*name='\0';
dvander@27	3670	*tag2=(int)strtol(ptr,NULL,16);
dvander@27	3671	return unary;
dvander@27	3672	}
dvander@27	3673
dvander@132	3674	constvalue *find_tag_byval(int tag)
dvander@27	3675	{
dvander@27	3676	constvalue *tagsym;
dvander@27	3677	tagsym=find_constval_byval(&tagname_tab,tag & ~PUBLICTAG);
dvander@27	3678	if (tagsym==NULL)
dvander@27	3679	tagsym=find_constval_byval(&tagname_tab,tag \| PUBLICTAG);
dvander@27	3680	return tagsym;
dvander@27	3681	}
dvander@27	3682
dvander@27	3683	SC_FUNC char funcdisplayname(char dest,char *funcname)
dvander@27	3684	{
dvander@27	3685	int tags[2];
dvander@27	3686	char opname[10];
dvander@27	3687	constvalue *tagsym[2];
dvander@27	3688	int unary;
dvander@27	3689
dvander@27	3690	if (isalpha(funcname) \|\| funcname=='_' \|\| funcname==PUBLIC_CHAR \|\| funcname=='\0') {
dvander@27	3691	if (dest!=funcname)
dvander@27	3692	strcpy(dest,funcname);
dvander@27	3693	return dest;
dvander@27	3694	} /* if */
dvander@27	3695
dvander@27	3696	unary=parse_funcname(funcname,&tags[0],&tags[1],opname);
dvander@27	3697	tagsym[1]=find_tag_byval(tags[1]);
dvander@27	3698	assert(tagsym[1]!=NULL);
dvander@27	3699	if (unary) {
dvander@27	3700	sprintf(dest,"operator%s(%s:)",opname,tagsym[1]->name);
dvander@27	3701	} else {
dvander@27	3702	tagsym[0]=find_tag_byval(tags[0]);
dvander@27	3703	assert(tagsym[0]!=NULL);
dvander@27	3704	/* special case: the assignment operator has the return value as the 2nd tag */
dvander@27	3705	if (opname[0]=='=' && opname[1]=='\0')
dvander@27	3706	sprintf(dest,"%s:operator%s(%s:)",tagsym[0]->name,opname,tagsym[1]->name);
dvander@27	3707	else
dvander@27	3708	sprintf(dest,"operator%s(%s:,%s:)",opname,tagsym[0]->name,tagsym[1]->name);
dvander@27	3709	} /* if */
dvander@27	3710	return dest;
dvander@27	3711	}
dvander@27	3712
dvander@27	3713	static void funcstub(int fnative)
dvander@27	3714	{
dvander@27	3715	int tok,tag,fpublic;
dvander@27	3716	char *str;
dvander@27	3717	cell val,size;
dvander@27	3718	char symbolname[sNAMEMAX+1];
dvander@27	3719	int idxtag[sDIMEN_MAX];
dvander@27	3720	int dim[sDIMEN_MAX];
dvander@27	3721	int numdim;
dvander@27	3722	symbol sym,sub;
dvander@27	3723	int opertok;
dvander@27	3724
dvander@27	3725	opertok=0;
dvander@27	3726	lastst=0;
dvander@27	3727	litidx=0; /* clear the literal pool */
dvander@27	3728	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	3729
dvander@27	3730	tag=pc_addtag(NULL); /* get the tag of the return value */
dvander@27	3731	numdim=0;
dvander@27	3732	while (matchtoken('[')) {
dvander@27	3733	/* the function returns an array, get this tag for the index and the array
dvander@27	3734	* dimensions
dvander@27	3735	*/
dvander@27	3736	if (numdim == sDIMEN_MAX) {
dvander@27	3737	error(53); /* exceeding maximum number of dimensions */
dvander@27	3738	return;
dvander@27	3739	} /* if */
dvander@27	3740	size=needsub(&idxtag[numdim],NULL); /* get size; size==0 for "var[]" */
dvander@27	3741	if (size==0)
dvander@27	3742	error(9); /* invalid array size */
dvander@27	3743	#if INT_MAX < LONG_MAX
dvander@27	3744	if (size > INT_MAX)
dvander@27	3745	error(105); /* overflow, exceeding capacity */
dvander@27	3746	#endif
dvander@27	3747	dim[numdim++]=(int)size;
dvander@27	3748	} /* while */
dvander@27	3749
dvander@191	3750	if (tag == pc_tag_string && numdim && dim[numdim-1])
dvander@151	3751	dim[numdim-1] = (size + sizeof(cell)-1) / sizeof(cell);
dvander@151	3752
dvander@27	3753	tok=lex(&val,&str);
dvander@27	3754	fpublic=(tok==tPUBLIC) \|\| (tok==tSYMBOL && str[0]==PUBLIC_CHAR);
dvander@27	3755	if (fnative) {
dvander@27	3756	if (fpublic \|\| tok==tSTOCK \|\| tok==tSTATIC \|\| tok==tSYMBOL && *str==PUBLIC_CHAR)
dvander@27	3757	error(42); /* invalid combination of class specifiers */
dvander@27	3758	} else {
dvander@27	3759	if (tok==tPUBLIC \|\| tok==tSTOCK \|\| tok==tSTATIC)
dvander@27	3760	tok=lex(&val,&str);
dvander@27	3761	} /* if */
dvander@27	3762
dvander@27	3763	if (tok==tOPERATOR) {
dvander@27	3764	opertok=operatorname(symbolname);
dvander@27	3765	if (opertok==0)
dvander@27	3766	return; /* error message already given */
dvander@27	3767	check_operatortag(opertok,tag,symbolname);
dvander@27	3768	} else {
dvander@27	3769	if (tok!=tSYMBOL && freading) {
dvander@27	3770	error(10); /* illegal function or declaration */
dvander@27	3771	return;
dvander@27	3772	} /* if */
dvander@27	3773	strcpy(symbolname,str);
dvander@27	3774	} /* if */
dvander@27	3775	needtoken('('); /* only functions may be native/forward */
dvander@27	3776
dvander@27	3777	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	3778	if (sym==NULL)
dvander@27	3779	return;
dvander@27	3780	if (fnative) {
dvander@27	3781	sym->usage=(char)(uNATIVE \| uRETVALUE \| uDEFINE \| (sym->usage & uPROTOTYPED));
dvander@27	3782	sym->x.lib=curlibrary;
dvander@27	3783	} else if (fpublic) {
dvander@27	3784	sym->usage\|=uPUBLIC;
dvander@27	3785	} /* if */
dvander@27	3786	sym->usage\|=uFORWARD;
dvander@27	3787
dvander@27	3788	declargs(sym,FALSE);
dvander@27	3789	/* "declargs()" found the ")" */
dvander@27	3790	sc_attachdocumentation(sym); /* attach any documenation to the function */
dvander@27	3791	if (!operatoradjust(opertok,sym,symbolname,tag))
dvander@27	3792	sym->usage &= ~uDEFINE;
dvander@27	3793
dvander@27	3794	if (getstates(symbolname)!=0) {
dvander@27	3795	if (fnative \|\| opertok!=0)
dvander@27	3796	error(82); /* native functions and operators may not have states */
dvander@27	3797	else
dvander@27	3798	error(231); /* ignoring state specifications on forward declarations */
dvander@27	3799	} /* if */
dvander@27	3800
dvander@27	3801	/* for a native operator, also need to specify an "exported" function name;
dvander@27	3802	* for a native function, this is optional
dvander@27	3803	*/
dvander@27	3804	if (fnative) {
dvander@27	3805	if (opertok!=0) {
dvander@27	3806	needtoken('=');
dvander@27	3807	lexpush(); /* push back, for matchtoken() to retrieve again */
dvander@27	3808	} /* if */
dvander@27	3809	if (matchtoken('=')) {
dvander@27	3810	/* allow number or symbol */
dvander@27	3811	if (matchtoken(tSYMBOL)) {
dvander@27	3812	tokeninfo(&val,&str);
dvander@27	3813	insert_alias(sym->name,str);
dvander@27	3814	} else {
dvander@27	3815	constexpr(&val,NULL,NULL);
dvander@27	3816	sym->addr=val;
dvander@27	3817	/* At the moment, I have assumed that this syntax is only valid if
dvander@27	3818	* val < 0. To properly mix "normal" native functions and indexed
dvander@27	3819	* native functions, one should use negative indices anyway.
dvander@27	3820	* Special code for a negative index in sym->addr exists in SC4.C
dvander@27	3821	* (ffcall()) and in SC6.C (the loops for counting the number of native
dvander@27	3822	* variables and for writing them).
dvander@27	3823	*/
dvander@27	3824	} /* if */
dvander@27	3825	} /* if */
dvander@27	3826	} /* if */
dvander@27	3827	needtoken(tTERM);
dvander@27	3828
dvander@27	3829	/* attach the array to the function symbol */
dvander@27	3830	if (numdim>0) {
dvander@27	3831	assert(sym!=NULL);
dvander@27	3832	sub=addvariable(symbolname,0,iARRAY,sGLOBAL,tag,dim,numdim,idxtag);
dvander@27	3833	sub->parent=sym;
dvander@27	3834	} /* if */
dvander@27	3835
dvander@27	3836	litidx=0; /* clear the literal pool */
dvander@27	3837	delete_symbols(&loctab,0,TRUE,TRUE);/* clear local variables queue */
dvander@27	3838	}
dvander@27	3839
dvander@27	3840	/* newfunc - begin a function
dvander@27	3841	*
dvander@27	3842	* This routine is called from "parse" and tries to make a function
dvander@27	3843	* out of the following text
dvander@27	3844	*
dvander@27	3845	* Global references: funcstatus,lastst,litidx
dvander@27	3846	* rettype (altered)
dvander@27	3847	* curfunc (altered)
dvander@27	3848	* declared (altered)
dvander@27	3849	* glb_declared (altered)
dvander@27	3850	* sc_alignnext (altered)
dvander@27	3851	*/
dvander@27	3852	static int newfunc(char *firstname,int firsttag,int fpublic,int fstatic,int stock)
dvander@27	3853	{
dvander@27	3854	symbol *sym;
dvander@27	3855	int argcnt,tok,tag,funcline;
dvander@27	3856	int opertok,opererror;
dvander@27	3857	char symbolname[sNAMEMAX+1];
dvander@27	3858	char *str;
dvander@27	3859	cell val,cidx,glbdecl;
dvander@27	3860	short filenum;
dvander@27	3861	int state_id;
dvander@27	3862
dvander@27	3863	assert(litidx==0); /* literal queue should be empty */
dvander@27	3864	litidx=0; /* clear the literal pool (should already be empty) */
dvander@27	3865	opertok=0;
dvander@27	3866	lastst=0; /* no statement yet */
dvander@27	3867	cidx=0; /* just to avoid compiler warnings */
dvander@27	3868	glbdecl=0;
dvander@27	3869	assert(loctab.next==NULL); /* local symbol table should be empty */
dvander@27	3870	filenum=fcurrent; /* save file number at the start of the declaration */
dvander@27	3871
dvander@27	3872	if (firstname!=NULL) {
dvander@27	3873	assert(strlen(firstname)<=sNAMEMAX);
dvander@27	3874	strcpy(symbolname,firstname); /* save symbol name */
dvander@27	3875	tag=firsttag;
dvander@27	3876	} else {
dvander@27	3877	tag= (firsttag>=0) ? firsttag : pc_addtag(NULL);
dvander@27	3878	tok=lex(&val,&str);
dvander@27	3879	assert(!fpublic);
dvander@27	3880	if (tok==tNATIVE \|\| tok==tPUBLIC && stock)
dvander@27	3881	error(42); /* invalid combination of class specifiers */
dvander@27	3882	if (tok==tOPERATOR) {
dvander@27	3883	opertok=operatorname(symbolname);
dvander@27	3884	if (opertok==0)
dvander@27	3885	return TRUE; /* error message already given */
dvander@27	3886	check_operatortag(opertok,tag,symbolname);
dvander@27	3887	} else {
dvander@27	3888	if (tok!=tSYMBOL && freading) {
dvander@27	3889	error(20,str); /* invalid symbol name */
dvander@27	3890	return FALSE;
dvander@27	3891	} /* if */
dvander@27	3892	assert(strlen(str)<=sNAMEMAX);
dvander@27	3893	strcpy(symbolname,str);
dvander@27	3894	} /* if */
dvander@27	3895	} /* if */
dvander@27	3896	/* check whether this is a function or a variable declaration */
dvander@27	3897	if (!matchtoken('('))
dvander@27	3898	return FALSE;
dvander@27	3899	/* so it is a function, proceed */
dvander@27	3900	funcline=fline; /* save line at which the function is defined */
dvander@27	3901	if (symbolname[0]==PUBLIC_CHAR) {
dvander@27	3902	fpublic=TRUE; /* implicitly public function */
dvander@27	3903	if (stock)
dvander@27	3904	error(42); /* invalid combination of class specifiers */
dvander@27	3905	} /* if */
dvander@27	3906	sym=fetchfunc(symbolname,tag);/* get a pointer to the function entry */
dvander@27	3907	if (sym==NULL \|\| (sym->usage & uNATIVE)!=0)
dvander@27	3908	return TRUE; /* it was recognized as a function declaration, but not as a valid one */
dvander@27	3909	if (fpublic)
dvander@27	3910	sym->usage\|=uPUBLIC;
dvander@27	3911	if (fstatic)
dvander@27	3912	sym->fnumber=filenum;
dvander@27	3913	/* if the function was used before being declared, and it has a tag for the
dvander@27	3914	* result, add a third pass (as second "skimming" parse) because the function
dvander@27	3915	* result may have been used with user-defined operators, which have now
dvander@27	3916	* been incorrectly flagged (as the return tag was unknown at the time of
dvander@27	3917	* the call)
dvander@27	3918	*/
dvander@27	3919	if ((sym->usage & (uPROTOTYPED \| uREAD))==uREAD && sym->tag!=0) {
dvander@27	3920	int curstatus=sc_status;
dvander@27	3921	sc_status=statWRITE; /* temporarily set status to WRITE, so the warning isn't blocked */
dvander@27	3922	#if 0 /* SourceMod - silly, should be removed in first pass, so removed */
dvander@27	3923	error(208);
dvander@27	3924	#endif
dvander@27	3925	sc_status=curstatus;
dvander@27	3926	sc_reparse=TRUE; /* must add another pass to "initial scan" phase */
dvander@27	3927	} /* if */
dvander@27	3928	#if 0 /* Not used for SourceMod */
dvander@27	3929	/* we want public functions to be explicitly prototyped, as they are called
dvander@27	3930	* from the outside
dvander@27	3931	*/
dvander@27	3932	if (fpublic && (sym->usage & uFORWARD)==0)
dvander@27	3933	error(235,symbolname);
dvander@27	3934	#endif
dvander@27	3935	/* declare all arguments */
dvander@27	3936	argcnt=declargs(sym,TRUE);
dvander@27	3937	opererror=!operatoradjust(opertok,sym,symbolname,tag);
dvander@27	3938	if (strcmp(symbolname,uMAINFUNC)==0 \|\| strcmp(symbolname,uENTRYFUNC)==0) {
dvander@27	3939	if (argcnt>0)
dvander@27	3940	error(5); /* "main()" and "entry()" functions may not have any arguments */
dvander@27	3941	sym->usage\|=uREAD; /* "main()" is the program's entry point: always used */
dvander@27	3942	} /* if */
dvander@27	3943	state_id=getstates(symbolname);
dvander@27	3944	if (state_id>0 && (opertok!=0 \|\| strcmp(symbolname,uMAINFUNC)==0))
dvander@27	3945	error(82); /* operators may not have states, main() may neither */
dvander@27	3946	attachstatelist(sym,state_id);
dvander@27	3947	/* "declargs()" found the ")"; if a ";" appears after this, it was a
dvander@27	3948	* prototype */
dvander@27	3949	if (matchtoken(';')) {
dvander@27	3950	sym->usage\|=uFORWARD;
dvander@27	3951	if (!sc_needsemicolon)
dvander@27	3952	error(218); /* old style prototypes used with optional semicolumns */
dvander@27	3953	delete_symbols(&loctab,0,TRUE,TRUE); /* prototype is done; forget everything */
dvander@27	3954	return TRUE;
dvander@27	3955	} /* if */
dvander@27	3956	/* so it is not a prototype, proceed */
dvander@27	3957	/* if this is a function that is not referred to (this can only be detected
dvander@27	3958	* in the second stage), shut code generation off */
dvander@27	3959	if (sc_status==statWRITE && (sym->usage & uREAD)==0 && !fpublic) {
dvander@27	3960	sc_status=statSKIP;
dvander@27	3961	cidx=code_idx;
dvander@27	3962	glbdecl=glb_declared;
dvander@27	3963	} /* if */
ds@52	3964	if ((sym->flags & flgDEPRECATED)!=0) {
dvander@27	3965	char *ptr= (sym->documentation!=NULL) ? sym->documentation : "";
ds@52	3966	error(234,symbolname,ptr); /* deprecated (probably a public function) */
dvander@27	3967	} /* if */
dvander@27	3968	begcseg();
dvander@27	3969	sym->usage\|=uDEFINE; /* set the definition flag */
dvander@27	3970	if (stock)
dvander@27	3971	sym->usage\|=uSTOCK;
dvander@27	3972	if (opertok!=0 && opererror)
dvander@27	3973	sym->usage &= ~uDEFINE;
dvander@27	3974	/* if the function has states, dump the label to the start of the function */
dvander@27	3975	if (state_id!=0) {
dvander@27	3976	constvalue *ptr=sym->states->next;
dvander@27	3977	while (ptr!=NULL) {
dvander@27	3978	assert(sc_status!=statWRITE \|\| strlen(ptr->name)>0);
dvander@27	3979	if (ptr->index==state_id) {
dvander@27	3980	setlabel((int)strtol(ptr->name,NULL,16));
dvander@27	3981	break;
dvander@27	3982	} /* if */
dvander@27	3983	ptr=ptr->next;
dvander@27	3984	} /* while */
dvander@27	3985	} /* if */
dvander@27	3986	startfunc(sym->name); /* creates stack frame */
dvander@27	3987	insert_dbgline(funcline);
dvander@27	3988	setline(FALSE);
dvander@27	3989	if (sc_alignnext) {
dvander@27	3990	alignframe(sc_dataalign);
dvander@27	3991	sc_alignnext=FALSE;
dvander@27	3992	} /* if */
dvander@27	3993	declared=0; /* number of local cells */
dvander@117	3994	resetstacklist();
dvander@118	3995	resetheaplist();
dvander@27	3996	rettype=(sym->usage & uRETVALUE); /* set "return type" variable */
dvander@27	3997	curfunc=sym;
dvander@27	3998	define_args(); /* add the symbolic info for the function arguments */
dvander@27	3999	#if !defined SC_LIGHT
dvander@27	4000	if (matchtoken('{')) {
dvander@27	4001	lexpush();
dvander@27	4002	} else {
dvander@27	4003	/* Insert a separator so that comments following the statement will not
dvander@27	4004	* be attached to this function; they should be attached to the next
dvander@27	4005	* function. This is not a problem for functions having a compound block,
dvander@27	4006	* because the closing brace is an explicit "end token" for the function.
dvander@27	4007	* With single statement functions, the preprocessor may overread the
dvander@27	4008	* source code before the parser determines an "end of statement".
dvander@27	4009	*/
dvander@27	4010	insert_docstring_separator();
dvander@27	4011	} /* if */
dvander@27	4012	#endif
dvander@27	4013	sc_curstates=state_id;/* set state id, for accessing global state variables */
dvander@27	4014	statement(NULL,FALSE);
dvander@27	4015	sc_curstates=0;
dvander@27	4016	if ((rettype & uRETVALUE)!=0)
dvander@27	4017	sym->usage\|=uRETVALUE;
dvander@27	4018	if (declared!=0) {
dvander@27	4019	/* This happens only in a very special (and useless) case, where a function
dvander@27	4020	* has only a single statement in its body (no compound block) and that
dvander@27	4021	* statement declares a new variable
dvander@27	4022	*/
dvander@117	4023	popstacklist();
dvander@27	4024	declared=0;
dvander@27	4025	} /* if */
dvander@27	4026	if ((lastst!=tRETURN) && (lastst!=tGOTO)){
dvander@27	4027	ldconst(0,sPRI);
dvander@27	4028	ffret(strcmp(sym->name,uENTRYFUNC)!=0);
dvander@27	4029	if ((sym->usage & uRETVALUE)!=0) {
dvander@27	4030	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	4031	funcdisplayname(symname,sym->name);
dvander@27	4032	error(209,symname); /* function should return a value */
dvander@27	4033	} /* if */
dvander@27	4034	} /* if */
dvander@27	4035	endfunc();
dvander@27	4036	sym->codeaddr=code_idx;
dvander@27	4037	sc_attachdocumentation(sym); /* attach collected documenation to the function */
dvander@27	4038	if (litidx) { /* if there are literals defined */
dvander@27	4039	glb_declared+=litidx;
dvander@27	4040	begdseg(); /* flip to DATA segment */
dvander@27	4041	dumplits(); /* dump literal strings */
dvander@27	4042	litidx=0;
dvander@27	4043	} /* if */
dvander@27	4044	testsymbols(&loctab,0,TRUE,TRUE); /* test for unused arguments and labels */
dvander@27	4045	delete_symbols(&loctab,0,TRUE,TRUE); /* clear local variables queue */
dvander@27	4046	assert(loctab.next==NULL);
dvander@27	4047	curfunc=NULL;
dvander@27	4048	if (sc_status==statSKIP) {
dvander@27	4049	sc_status=statWRITE;
dvander@27	4050	code_idx=cidx;
dvander@27	4051	glb_declared=glbdecl;
dvander@27	4052	} /* if */
dvander@27	4053	return TRUE;
dvander@27	4054	}
dvander@27	4055
dvander@27	4056	static int argcompare(arginfo a1,arginfo a2)
dvander@27	4057	{
dvander@27	4058	int result,level,i;
dvander@27	4059
dvander@27	4060	#if 0 /* SourceMod uses case insensitive args for forwards */
dvander@27	4061	result= strcmp(a1->name,a2->name)==0; /* name */
dvander@27	4062	#else
dvander@27	4063	result=1;
dvander@27	4064	#endif
dvander@27	4065	if (result)
dvander@27	4066	result= a1->ident==a2->ident; /* type/class */
dvander@27	4067	if (result)
dvander@27	4068	result= a1->usage==a2->usage; /* "const" flag */
dvander@27	4069	if (result)
dvander@27	4070	result= a1->numtags==a2->numtags; /* tags (number and names) */
dvander@27	4071	for (i=0; result && i<a1->numtags; i++)
dvander@27	4072	result= a1->tags[i]==a2->tags[i];
dvander@27	4073	if (result)
dvander@27	4074	result= a1->numdim==a2->numdim; /* array dimensions & index tags */
dvander@27	4075	for (level=0; result && level<a1->numdim; level++)
dvander@27	4076	result= a1->dim[level]==a2->dim[level];
dvander@27	4077	for (level=0; result && level<a1->numdim; level++)
dvander@27	4078	result= a1->idxtag[level]==a2->idxtag[level];
dvander@27	4079	if (result)
dvander@27	4080	result= a1->hasdefault==a2->hasdefault; /* availability of default value */
dvander@27	4081	if (a1->hasdefault) {
dvander@27	4082	if (a1->ident==iREFARRAY) {
dvander@27	4083	if (result)
dvander@27	4084	result= a1->defvalue.array.size==a2->defvalue.array.size;
dvander@27	4085	if (result)
dvander@27	4086	result= a1->defvalue.array.arraysize==a2->defvalue.array.arraysize;
dvander@27	4087	/* ??? should also check contents of the default array (these troubles
dvander@27	4088	* go away in a 2-pass compiler that forbids double declarations, but
dvander@27	4089	* Pawn currently does not forbid them) */
dvander@27	4090	} else {
dvander@27	4091	if (result) {
dvander@286	4092	if ((a1->hasdefault & uSIZEOF)!=0 \|\| (a1->hasdefault & uTAGOF)!=0 \|\| (a1->hasdefault & uCOUNTOF)!=0)
dvander@27	4093	result= a1->hasdefault==a2->hasdefault
dvander@27	4094	&& strcmp(a1->defvalue.size.symname,a2->defvalue.size.symname)==0
dvander@27	4095	&& a1->defvalue.size.level==a2->defvalue.size.level;
dvander@27	4096	else
dvander@27	4097	result= a1->defvalue.val==a2->defvalue.val;
dvander@27	4098	} /* if */
dvander@27	4099	} /* if */
dvander@27	4100	if (result)
dvander@27	4101	result= a1->defvalue_tag==a2->defvalue_tag;
dvander@27	4102	} /* if */
dvander@27	4103	return result;
dvander@27	4104	}
dvander@27	4105
dvander@27	4106	/* declargs()
dvander@27	4107	*
dvander@27	4108	* This routine adds an entry in the local symbol table for each argument
dvander@27	4109	* found in the argument list. It returns the number of arguments.
dvander@27	4110	*/
dvander@27	4111	static int declargs(symbol *sym,int chkshadow)
dvander@27	4112	{
dvander@27	4113	#define MAXTAGS 16
dvander@27	4114	char *ptr;
dvander@27	4115	int argcnt,oldargcnt,tok,tags[MAXTAGS],numtags;
dvander@27	4116	cell val;
dvander@27	4117	arginfo arg, *arglist;
dvander@27	4118	char name[sNAMEMAX+1];
dvander@27	4119	int ident,fpublic,fconst;
dvander@27	4120	int idx;
dvander@27	4121
dvander@27	4122	/* if the function is already defined earlier, get the number of arguments
dvander@27	4123	* of the existing definition
dvander@27	4124	*/
dvander@27	4125	oldargcnt=0;
dvander@27	4126	if ((sym->usage & uPROTOTYPED)!=0)
dvander@27	4127	while (sym->dim.arglist[oldargcnt].ident!=0)
dvander@27	4128	oldargcnt++;
dvander@27	4129	argcnt=0; /* zero aruments up to now */
dvander@27	4130	ident=iVARIABLE;
dvander@27	4131	numtags=0;
dvander@27	4132	fconst=FALSE;
dvander@27	4133	fpublic= (sym->usage & uPUBLIC)!=0;
dvander@27	4134	/* the '(' parantheses has already been parsed */
dvander@27	4135	if (!matchtoken(')')){
dvander@27	4136	do { /* there are arguments; process them */
dvander@27	4137	/* any legal name increases argument count (and stack offset) */
dvander@27	4138	tok=lex(&val,&ptr);
dvander@27	4139	switch (tok) {
dvander@27	4140	case 0:
dvander@27	4141	/* nothing */
dvander@27	4142	break;
dvander@27	4143	case '&':
dvander@27	4144	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4145	error(1,"-identifier-","&");
dvander@27	4146	ident=iREFERENCE;
dvander@27	4147	break;
dvander@27	4148	case tCONST:
dvander@27	4149	if (ident!=iVARIABLE \|\| numtags>0)
dvander@27	4150	error(1,"-identifier-","const");
dvander@27	4151	fconst=TRUE;
dvander@27	4152	break;
dvander@27	4153	case tLABEL:
dvander@27	4154	if (numtags>0)
dvander@27	4155	error(1,"-identifier-","-tagname-");
dvander@27	4156	tags[0]=pc_addtag(ptr);
dvander@27	4157	numtags=1;
dvander@27	4158	break;
dvander@27	4159	case '{':
dvander@27	4160	if (numtags>0)
dvander@27	4161	error(1,"-identifier-","-tagname-");
dvander@27	4162	numtags=0;
dvander@27	4163	while (numtags<MAXTAGS) {
dvander@27	4164	if (!matchtoken('_') && !needtoken(tSYMBOL))
dvander@27	4165	break;
dvander@27	4166	tokeninfo(&val,&ptr);
dvander@27	4167	tags[numtags++]=pc_addtag(ptr);
dvander@27	4168	if (matchtoken('}'))
dvander@27	4169	break;
dvander@27	4170	needtoken(',');
dvander@27	4171	} /* for */
dvander@27	4172	needtoken(':');
dvander@27	4173	tok=tLABEL; /* for outer loop: flag that we have seen a tagname */
dvander@27	4174	break;
dvander@27	4175	case tSYMBOL:
dvander@27	4176	if (argcnt>=sMAXARGS)
dvander@27	4177	error(45); /* too many function arguments */
dvander@27	4178	strcpy(name,ptr); /* save symbol name */
dvander@27	4179	if (name[0]==PUBLIC_CHAR)
dvander@27	4180	error(56,name); /* function arguments cannot be public */
dvander@27	4181	if (numtags==0)
dvander@27	4182	tags[numtags++]=0; /* default tag */
dvander@27	4183	/* Stack layout:
dvander@27	4184	* base + 0*sizeof(cell) == previous "base"
dvander@27	4185	* base + 1*sizeof(cell) == function return address
dvander@27	4186	* base + 2*sizeof(cell) == number of arguments
dvander@27	4187	* base + 3*sizeof(cell) == first argument of the function
dvander@27	4188	* So the offset of each argument is "(argcnt+3) * sizeof(cell)".
dvander@27	4189	*/
dvander@27	4190	doarg(name,ident,(argcnt+3)*sizeof(cell),tags,numtags,fpublic,fconst,chkshadow,&arg);
dvander@27	4191	if (fpublic && arg.hasdefault)
dvander@27	4192	error(59,name); /* arguments of a public function may not have a default value */
dvander@27	4193	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4194	/* redimension the argument list, add the entry */
dvander@27	4195	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4196	if (sym->dim.arglist==0)
dvander@27	4197	error(103); /* insufficient memory */
dvander@27	4198	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4199	sym->dim.arglist[argcnt]=arg;
dvander@27	4200	} else {
dvander@27	4201	/* check the argument with the earlier definition */
dvander@27	4202	if (argcnt>oldargcnt \|\| !argcompare(&sym->dim.arglist[argcnt],&arg))
dvander@27	4203	error(25); /* function definition does not match prototype */
dvander@27	4204	/* may need to free default array argument and the tag list */
dvander@27	4205	if (arg.ident==iREFARRAY && arg.hasdefault)
dvander@27	4206	free(arg.defvalue.array.data);
dvander@27	4207	else if (arg.ident==iVARIABLE
dvander@286	4208	&& ((arg.hasdefault & uSIZEOF)!=0 \|\| (arg.hasdefault & uTAGOF)!=0) \|\| (arg.hasdefault & uCOUNTOF)!=0)
dvander@27	4209	free(arg.defvalue.size.symname);
dvander@27	4210	free(arg.tags);
dvander@27	4211	} /* if */
dvander@27	4212	argcnt++;
dvander@27	4213	ident=iVARIABLE;
dvander@27	4214	numtags=0;
dvander@27	4215	fconst=FALSE;
dvander@27	4216	break;
dvander@27	4217	case tELLIPS:
dvander@27	4218	if (ident!=iVARIABLE)
dvander@27	4219	error(10); /* illegal function or declaration */
dvander@27	4220	if (numtags==0)
dvander@27	4221	tags[numtags++]=0; /* default tag */
dvander@27	4222	if ((sym->usage & uPROTOTYPED)==0) {
dvander@27	4223	/* redimension the argument list, add the entry iVARARGS */
dvander@27	4224	sym->dim.arglist=(arginfo)realloc(sym->dim.arglist,(argcnt+2)sizeof(arginfo));
dvander@27	4225	if (sym->dim.arglist==0)
dvander@27	4226	error(103); /* insufficient memory */
dvander@27	4227	memset(&sym->dim.arglist[argcnt+1],0,sizeof(arginfo)); /* keep the list terminated */
dvander@27	4228	sym->dim.arglist[argcnt].ident=iVARARGS;
dvander@27	4229	sym->dim.arglist[argcnt].hasdefault=FALSE;
dvander@27	4230	sym->dim.arglist[argcnt].defvalue.val=0;
dvander@27	4231	sym->dim.arglist[argcnt].defvalue_tag=0;
dvander@27	4232	sym->dim.arglist[argcnt].numtags=numtags;
dvander@27	4233	sym->dim.arglist[argcnt].tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4234	if (sym->dim.arglist[argcnt].tags==NULL)
dvander@27	4235	error(103); /* insufficient memory */
dvander@27	4236	memcpy(sym->dim.arglist[argcnt].tags,tags,numtags*sizeof tags[0]);
dvander@27	4237	} else {
dvander@27	4238	if (argcnt>oldargcnt \|\| sym->dim.arglist[argcnt].ident!=iVARARGS)
dvander@27	4239	error(25); /* function definition does not match prototype */
dvander@27	4240	} /* if */
dvander@27	4241	argcnt++;
dvander@27	4242	break;
dvander@27	4243	default:
dvander@27	4244	error(10); /* illegal function or declaration */
dvander@27	4245	} /* switch */
dvander@27	4246	} while (tok=='&' \|\| tok==tLABEL \|\| tok==tCONST
dvander@27	4247	\|\| tok!=tELLIPS && matchtoken(',')); /* more? */
dvander@27	4248	/* if the next token is not ",", it should be ")" */
dvander@27	4249	needtoken(')');
dvander@27	4250	} /* if */
dvander@27	4251	/* resolve any "sizeof" arguments (now that all arguments are known) */
dvander@27	4252	assert(sym->dim.arglist!=NULL);
dvander@27	4253	arglist=sym->dim.arglist;
dvander@27	4254	for (idx=0; idx<argcnt && arglist[idx].ident!=0; idx++) {
dvander@286	4255	if ((arglist[idx].hasdefault & uSIZEOF)!=0
dvander@286	4256	\|\| (arglist[idx].hasdefault & uTAGOF)!=0
dvander@286	4257	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0) {
dvander@27	4258	int altidx;
dvander@27	4259	/* Find the argument with the name mentioned after the "sizeof". Note
dvander@27	4260	* that we cannot use findloc here because we need the arginfo struct,
dvander@27	4261	* not the symbol.
dvander@27	4262	*/
dvander@27	4263	ptr=arglist[idx].defvalue.size.symname;
dvander@27	4264	assert(ptr!=NULL);
dvander@27	4265	for (altidx=0; altidx<argcnt && strcmp(ptr,arglist[altidx].name)!=0; altidx++)
dvander@27	4266	/* nothing */;
dvander@27	4267	if (altidx>=argcnt) {
dvander@27	4268	error(17,ptr); /* undefined symbol */
dvander@27	4269	} else {
dvander@27	4270	assert(arglist[idx].defvalue.size.symname!=NULL);
dvander@27	4271	/* check the level against the number of dimensions */
dvander@27	4272	if (arglist[idx].defvalue.size.level>0
dvander@27	4273	&& arglist[idx].defvalue.size.level>=arglist[altidx].numdim)
dvander@27	4274	error(28,arglist[idx].name); /* invalid subscript */
dvander@27	4275	/* check the type of the argument whose size to take; for a iVARIABLE
dvander@27	4276	* or a iREFERENCE, this is always 1 (so the code is redundant)
dvander@27	4277	*/
dvander@27	4278	assert(arglist[altidx].ident!=iVARARGS);
dvander@286	4279	if (arglist[altidx].ident!=iREFARRAY
dvander@286	4280	&& (((arglist[idx].hasdefault & uSIZEOF)!=0)
dvander@286	4281	\|\| (arglist[idx].hasdefault & uCOUNTOF)!=0)) {
dvander@27	4282	if ((arglist[idx].hasdefault & uTAGOF)!=0) {
dvander@27	4283	error(81,arglist[idx].name); /* cannot take "tagof" an indexed array */
dvander@27	4284	} else {
dvander@27	4285	assert(arglist[altidx].ident==iVARIABLE \|\| arglist[altidx].ident==iREFERENCE);
dvander@27	4286	error(223,ptr); /* redundant sizeof */
dvander@27	4287	} /* if */
dvander@27	4288	} /* if */
dvander@27	4289	} /* if */
dvander@27	4290	} /* if */
dvander@27	4291	} /* for */
dvander@27	4292
dvander@27	4293	sym->usage\|=uPROTOTYPED;
dvander@27	4294	errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/
dvander@27	4295	return argcnt;
dvander@27	4296	}
dvander@27	4297
dvander@27	4298	/* doarg - declare one argument type
dvander@27	4299	*
dvander@27	4300	* this routine is called from "declargs()" and adds an entry in the local
dvander@27	4301	* symbol table for one argument.
dvander@27	4302	*
dvander@27	4303	* "fpublic" indicates whether the function for this argument list is public.
dvander@27	4304	* The arguments themselves are never public.
dvander@27	4305	*/
dvander@27	4306	static void doarg(char *name,int ident,int offset,int tags[],int numtags,
dvander@27	4307	int fpublic,int fconst,int chkshadow,arginfo *arg)
dvander@27	4308	{
dvander@27	4309	symbol *argsym;
dvander@27	4310	constvalue *enumroot;
dvander@27	4311	cell size;
dvander@286	4312	int slength=0;
dvander@27	4313
dvander@27	4314	strcpy(arg->name,name);
dvander@27	4315	arg->hasdefault=FALSE; /* preset (most common case) */
dvander@27	4316	arg->defvalue.val=0; /* clear */
dvander@27	4317	arg->defvalue_tag=0;
dvander@27	4318	arg->numdim=0;
dvander@27	4319	if (matchtoken('[')) {
dvander@27	4320	if (ident==iREFERENCE)
dvander@27	4321	error(67,name); /* illegal declaration ("&name[]" is unsupported) */
dvander@27	4322	do {
dvander@27	4323	if (arg->numdim == sDIMEN_MAX) {
dvander@27	4324	error(53); /* exceeding maximum number of dimensions */
dvander@27	4325	return;
dvander@27	4326	} /* if */
dvander@27	4327	size=needsub(&arg->idxtag[arg->numdim],&enumroot);/* may be zero here, it is a pointer anyway */
dvander@27	4328	#if INT_MAX < LONG_MAX
dvander@27	4329	if (size > INT_MAX)
dvander@27	4330	error(105); /* overflow, exceeding capacity */
dvander@27	4331	#endif
dvander@27	4332	arg->dim[arg->numdim]=(int)size;
dvander@27	4333	arg->numdim+=1;
dvander@27	4334	} while (matchtoken('['));
dvander@27	4335	ident=iREFARRAY; /* "reference to array" (is a pointer) */
dvander@286	4336	if (checktag(tags, numtags, pc_tag_string)) {
dvander@286	4337	slength = arg->dim[arg->numdim - 1];
dvander@151	4338	arg->dim[arg->numdim - 1] = (size + sizeof(cell) - 1) / sizeof(cell);
dvander@286	4339	}
dvander@27	4340	if (matchtoken('=')) {
dvander@27	4341	lexpush(); /* initials() needs the "=" token again */
dvander@27	4342	assert(litidx==0); /* at the start of a function, this is reset */
dvander@27	4343	assert(numtags>0);
dvander@27	4344	initials(ident,tags[0],&size,arg->dim,arg->numdim,enumroot);
dvander@27	4345	assert(size>=litidx);
dvander@27	4346	/* allocate memory to hold the initial values */
dvander@27	4347	arg->defvalue.array.data=(cell )malloc(litidxsizeof(cell));
dvander@27	4348	if (arg->defvalue.array.data!=NULL) {
dvander@27	4349	int i;
dvander@27	4350	memcpy(arg->defvalue.array.data,litq,litidx*sizeof(cell));
dvander@27	4351	arg->hasdefault=TRUE; /* argument has default value */
dvander@27	4352	arg->defvalue.array.size=litidx;
dvander@27	4353	arg->defvalue.array.addr=-1;
dvander@27	4354	/* calulate size to reserve on the heap */
dvander@27	4355	arg->defvalue.array.arraysize=1;
dvander@27	4356	for (i=0; i<arg->numdim; i++)
dvander@27	4357	arg->defvalue.array.arraysize*=arg->dim[i];
dvander@27	4358	if (arg->defvalue.array.arraysize < arg->defvalue.array.size)
dvander@27	4359	arg->defvalue.array.arraysize = arg->defvalue.array.size;
dvander@27	4360	} /* if */
dvander@27	4361	litidx=0; /* reset */
dvander@27	4362	} /* if */
dvander@27	4363	} else {
dvander@27	4364	if (matchtoken('=')) {
dvander@27	4365	unsigned char size_tag_token;
dvander@27	4366	assert(ident==iVARIABLE \|\| ident==iREFERENCE);
dvander@27	4367	arg->hasdefault=TRUE; /* argument has a default value */
dvander@27	4368	size_tag_token=(unsigned char)(matchtoken(tSIZEOF) ? uSIZEOF : 0);
dvander@27	4369	if (size_tag_token==0)
dvander@27	4370	size_tag_token=(unsigned char)(matchtoken(tTAGOF) ? uTAGOF : 0);
dvander@286	4371	if (size_tag_token==0)
dvander@286	4372	size_tag_token=(unsigned char)(matchtoken(tCELLSOF) ? uCOUNTOF : 0);
dvander@27	4373	if (size_tag_token!=0) {
dvander@27	4374	int paranthese;
dvander@27	4375	if (ident==iREFERENCE)
dvander@27	4376	error(66,name); /* argument may not be a reference */
dvander@27	4377	paranthese=0;
dvander@27	4378	while (matchtoken('('))
dvander@27	4379	paranthese++;
dvander@27	4380	if (needtoken(tSYMBOL)) {
dvander@27	4381	/* save the name of the argument whose size id to take */
dvander@27	4382	char *name;
dvander@27	4383	cell val;
dvander@27	4384	tokeninfo(&val,&name);
dvander@27	4385	if ((arg->defvalue.size.symname=duplicatestring(name)) == NULL)
dvander@27	4386	error(103); /* insufficient memory */
dvander@27	4387	arg->defvalue.size.level=0;
dvander@286	4388	if (size_tag_token==uSIZEOF \|\| size_tag_token==uCOUNTOF) {
dvander@27	4389	while (matchtoken('[')) {
dvander@27	4390	arg->defvalue.size.level+=(short)1;
dvander@27	4391	needtoken(']');
dvander@27	4392	} /* while */
dvander@27	4393	} /* if */
dvander@27	4394	if (ident==iVARIABLE) /* make sure we set this only if not a reference */
dvander@27	4395	arg->hasdefault \|= size_tag_token; /* uSIZEOF or uTAGOF */
dvander@27	4396	} /* if */
dvander@27	4397	while (paranthese--)
dvander@27	4398	needtoken(')');
dvander@27	4399	} else {
dvander@27	4400	constexpr(&arg->defvalue.val,&arg->defvalue_tag,NULL);
dvander@27	4401	assert(numtags>0);
dvander@27	4402	if (!matchtag(tags[0],arg->defvalue_tag,TRUE))
dvander@27	4403	error(213); /* tagname mismatch */
dvander@27	4404	} /* if */
dvander@27	4405	} /* if */
dvander@27	4406	} /* if */
dvander@27	4407	arg->ident=(char)ident;
dvander@27	4408	arg->usage=(char)(fconst ? uCONST : 0);
dvander@27	4409	arg->numtags=numtags;
dvander@27	4410	arg->tags=(int)malloc(numtagssizeof tags[0]);
dvander@27	4411	if (arg->tags==NULL)
dvander@27	4412	error(103); /* insufficient memory */
dvander@27	4413	memcpy(arg->tags,tags,numtags*sizeof tags[0]);
dvander@27	4414	argsym=findloc(name);
dvander@27	4415	if (argsym!=NULL) {
dvander@27	4416	error(21,name); /* symbol already defined */
dvander@27	4417	} else {
dvander@27	4418	if (chkshadow && (argsym=findglb(name,sSTATEVAR))!=NULL && argsym->ident!=iFUNCTN)
dvander@27	4419	error(219,name); /* variable shadows another symbol */
dvander@27	4420	/* add details of type and address */
dvander@27	4421	assert(numtags>0);
dvander@286	4422	argsym=addvariable2(name,offset,ident,sLOCAL,tags[0],
dvander@286	4423	arg->dim,arg->numdim,arg->idxtag,slength);
dvander@27	4424	argsym->compound=0;
dvander@27	4425	if (ident==iREFERENCE)
dvander@27	4426	argsym->usage\|=uREAD; /* because references are passed back */
dvander@27	4427	if (fpublic)
dvander@27	4428	argsym->usage\|=uREAD; /* arguments of public functions are always "used" */
dvander@27	4429	if (fconst)
dvander@27	4430	argsym->usage\|=uCONST;
dvander@27	4431	} /* if */
dvander@27	4432	}
dvander@27	4433
dvander@27	4434	static int count_referrers(symbol *entry)
dvander@27	4435	{
dvander@27	4436	int i,count;
dvander@27	4437
dvander@27	4438	count=0;
dvander@27	4439	for (i=0; i<entry->numrefers; i++)
dvander@27	4440	if (entry->refer[i]!=NULL)
dvander@27	4441	count++;
dvander@27	4442	return count;
dvander@27	4443	}
dvander@27	4444
dvander@27	4445	#if !defined SC_LIGHT
dvander@27	4446	static int find_xmltag(char source,char xmltag,char xmlparam,char xmlvalue,
dvander@27	4447	char *outer_start,int outer_length,
dvander@27	4448	char *inner_start,int inner_length)
dvander@27	4449	{
dvander@27	4450	char ptr,inner_end;
dvander@27	4451	int xmltag_len,xmlparam_len,xmlvalue_len;
dvander@27	4452	int match;
dvander@27	4453
dvander@27	4454	assert(source!=NULL);
dvander@27	4455	assert(xmltag!=NULL);
dvander@27	4456	assert(outer_start!=NULL);
dvander@27	4457	assert(outer_length!=NULL);
dvander@27	4458	assert(inner_start!=NULL);
dvander@27	4459	assert(inner_length!=NULL);
dvander@27	4460
dvander@27	4461	/* both NULL or both non-NULL */
dvander@27	4462	assert(xmlvalue!=NULL && xmlparam!=NULL \|\| xmlvalue==NULL && xmlparam==NULL);
dvander@27	4463
dvander@27	4464	xmltag_len=strlen(xmltag);
dvander@27	4465	xmlparam_len= (xmlparam!=NULL) ? strlen(xmlparam) : 0;
dvander@27	4466	xmlvalue_len= (xmlvalue!=NULL) ? strlen(xmlvalue) : 0;
dvander@27	4467	ptr=source;
dvander@27	4468	/* find an opening '<' */
dvander@27	4469	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4470	outer_start=ptr; / be optimistic... */
dvander@27	4471	match=FALSE; /* ...and pessimistic at the same time */
dvander@27	4472	ptr++; /* skip '<' */
dvander@27	4473	while (ptr!='\0' && ptr<=' ')
dvander@27	4474	ptr++; /* skip white space */
dvander@27	4475	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4476	/* xml tag found, optionally check the parameter */
dvander@27	4477	ptr+=xmltag_len;
dvander@27	4478	while (ptr!='\0' && ptr<=' ')
dvander@27	4479	ptr++; /* skip white space */
dvander@27	4480	if (xmlparam!=NULL) {
dvander@27	4481	if (strncmp(ptr,xmlparam,xmlparam_len)==0 && ((ptr+xmlparam_len)<=' ' \|\| (ptr+xmlparam_len)=='=')) {
dvander@27	4482	ptr+=xmlparam_len;
dvander@27	4483	while (ptr!='\0' && ptr<=' ')
dvander@27	4484	ptr++; /* skip white space */
dvander@27	4485	if (*ptr=='=') {
dvander@27	4486	ptr++; /* skip '=' */
dvander@27	4487	while (ptr!='\0' && ptr<=' ')
dvander@27	4488	ptr++; /* skip white space */
dvander@27	4489	if (ptr=='"' \|\| ptr=='\'')
dvander@27	4490	ptr++; /* skip " or ' */
dvander@27	4491	assert(xmlvalue!=NULL);
dvander@27	4492	if (strncmp(ptr,xmlvalue,xmlvalue_len)==0
dvander@27	4493	&& (*(ptr+xmlvalue_len)<=' '
dvander@27	4494	\|\| *(ptr+xmlvalue_len)=='>'
dvander@27	4495	\|\| *(ptr+xmlvalue_len)=='"'
dvander@27	4496	\|\| *(ptr+xmlvalue_len)=='\''))
dvander@27	4497	match=TRUE; /* found it */
dvander@27	4498	} /* if */
dvander@27	4499	} /* if */
dvander@27	4500	} else {
dvander@27	4501	match=TRUE; /* don't check the parameter */
dvander@27	4502	} /* if */
dvander@27	4503	} /* if */
dvander@27	4504	if (match) {
dvander@27	4505	/* now find the end of the opening tag */
dvander@27	4506	while (ptr!='\0' && ptr!='>')
dvander@27	4507	ptr++;
dvander@27	4508	if (*ptr=='>')
dvander@27	4509	ptr++;
dvander@27	4510	while (ptr!='\0' && ptr<=' ')
dvander@27	4511	ptr++; /* skip white space */
dvander@27	4512	*inner_start=ptr;
dvander@27	4513	/* find the start of the closing tag (assume no nesting) */
dvander@27	4514	while ((ptr=strchr(ptr,'<'))!=NULL) {
dvander@27	4515	inner_end=ptr;
dvander@27	4516	ptr++; /* skip '<' */
dvander@27	4517	while (ptr!='\0' && ptr<=' ')
dvander@27	4518	ptr++; /* skip white space */
dvander@27	4519	if (*ptr=='/') {
dvander@27	4520	ptr++; /* skip / */
dvander@27	4521	while (ptr!='\0' && ptr<=' ')
dvander@27	4522	ptr++; /* skip white space */
dvander@27	4523	if (strncmp(ptr,xmltag,xmltag_len)==0 && ((ptr+xmltag_len)<=' ' \|\| (ptr+xmltag_len)=='>')) {
dvander@27	4524	/* find the end of the closing tag */
dvander@27	4525	while (ptr!='\0' && ptr!='>')
dvander@27	4526	ptr++;
dvander@27	4527	if (*ptr=='>')
dvander@27	4528	ptr++;
dvander@27	4529	/* set the lengths of the inner and outer segment */
dvander@27	4530	assert(*inner_start!=NULL);
dvander@27	4531	inner_length=(int)(inner_end-inner_start);
dvander@27	4532	assert(*outer_start!=NULL);
dvander@27	4533	outer_length=(int)(ptr-outer_start);
dvander@27	4534	break; /* break out of the loop */
dvander@27	4535	} /* if */
dvander@27	4536	} /* if */
dvander@27	4537	} /* while */
dvander@27	4538	return TRUE;
dvander@27	4539	} /* if */
dvander@27	4540	} /* while */
dvander@27	4541	return FALSE; /* not found */
dvander@27	4542	}
dvander@27	4543
dvander@27	4544	static char xmlencode(char dest,char *source)
dvander@27	4545	{
dvander@27	4546	char temp[2sNAMEMAX+20],ptr;
dvander@27	4547
dvander@27	4548	/* replace < by < and such; normally, such a symbol occurs at most once in
dvander@27	4549	* a symbol name (e.g. "operator<")
dvander@27	4550	*/
dvander@27	4551	ptr=temp;
dvander@27	4552	while (*source!='\0') {
dvander@27	4553	switch (*source) {
dvander@27	4554	case '<':
dvander@27	4555	strcpy(ptr,"<");
dvander@27	4556	ptr+=4;
dvander@27	4557	break;
dvander@27	4558	case '>':
dvander@27	4559	strcpy(ptr,">");
dvander@27	4560	ptr+=4;
dvander@27	4561	break;
dvander@27	4562	case '&':
dvander@27	4563	strcpy(ptr,"&");
dvander@27	4564	ptr+=5;
dvander@27	4565	break;
dvander@27	4566	default:
dvander@27	4567	ptr++=source;
dvander@27	4568	} /* switch */
dvander@27	4569	source++;
dvander@27	4570	} /* while */
dvander@27	4571	*ptr='\0';
dvander@27	4572	strcpy(dest,temp);
dvander@27	4573	return dest;
dvander@27	4574	}
dvander@27	4575
dvander@27	4576	static void make_report(symbol root,FILE log,char *sourcefile)
dvander@27	4577	{
dvander@27	4578	char symname[_MAX_PATH];
dvander@27	4579	int i,arg;
dvander@27	4580	symbol sym,ref;
dvander@27	4581	constvalue *tagsym;
dvander@27	4582	constvalue *enumroot;
dvander@27	4583	char *ptr;
dvander@27	4584
dvander@27	4585	/* adapt the installation directory */
dvander@27	4586	strcpy(symname,sc_rootpath);
dvander@27	4587	#if DIRSEP_CHAR=='\\'
dvander@27	4588	while ((ptr=strchr(symname,':'))!=NULL)
dvander@27	4589	*ptr='\|';
dvander@27	4590	while ((ptr=strchr(symname,DIRSEP_CHAR))!=NULL)
dvander@27	4591	*ptr='/';
dvander@27	4592	#endif
dvander@27	4593
dvander@27	4594	/* the XML header */
dvander@27	4595	fprintf(log,"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
dvander@27	4596	fprintf(log,"<?xml-stylesheet href=\"file:///%s/xml/pawndoc.xsl\" type=\"text/xsl\"?>\n",symname);
dvander@27	4597	fprintf(log,"<doc source=\"%s\">\n",sourcefile);
dvander@27	4598	ptr=strrchr(sourcefile,DIRSEP_CHAR);
dvander@27	4599	if (ptr!=NULL)
dvander@27	4600	ptr++;
dvander@27	4601	else
dvander@27	4602	ptr=sourcefile;
dvander@27	4603	fprintf(log,"\t<assembly>\n\t\t<name>%s</name>\n\t</assembly>\n",ptr);
dvander@27	4604
dvander@27	4605	/* attach the global documentation, if any */
dvander@27	4606	if (sc_documentation!=NULL) {
dvander@27	4607	fprintf(log,"\n\t<!-- general -->\n");
dvander@27	4608	fprintf(log,"\t<general>\n\t\t");
dvander@27	4609	fputs(sc_documentation,log);
dvander@27	4610	fprintf(log,"\n\t</general>\n\n");
dvander@27	4611	} /* if */
dvander@27	4612
dvander@27	4613	/* use multiple passes to print constants variables and functions in
dvander@27	4614	* separate sections
dvander@27	4615	*/
dvander@27	4616	fprintf(log,"\t<members>\n");
dvander@27	4617
dvander@27	4618	fprintf(log,"\n\t\t<!-- enumerations -->\n");
dvander@27	4619	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4620	if (sym->parent!=NULL)
dvander@27	4621	continue; /* hierarchical data type */
dvander@27	4622	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4623	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4624	if (sym->ident!=iCONSTEXPR \|\| (sym->usage & uENUMROOT)==0)
dvander@27	4625	continue;
dvander@27	4626	if ((sym->usage & uREAD)==0)
dvander@27	4627	continue;
dvander@27	4628	fprintf(log,"\t\t<member name=\"T:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4629	if (sym->tag!=0) {
dvander@27	4630	tagsym=find_tag_byval(sym->tag);
dvander@27	4631	assert(tagsym!=NULL);
dvander@27	4632	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4633	} /* if */
dvander@27	4634	/* browse through all fields */
dvander@27	4635	if ((enumroot=sym->dim.enumlist)!=NULL) {
dvander@27	4636	enumroot=enumroot->next; /* skip root */
dvander@27	4637	while (enumroot!=NULL) {
dvander@27	4638	fprintf(log,"\t\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,enumroot->name),enumroot->value);
dvander@27	4639	/* find the constant with this name and get the tag */
dvander@27	4640	ref=findglb(enumroot->name,sGLOBAL);
dvander@27	4641	if (ref!=NULL) {
dvander@27	4642	if (ref->x.tags.index!=0) {
dvander@27	4643	tagsym=find_tag_byval(ref->x.tags.index);
dvander@27	4644	assert(tagsym!=NULL);
dvander@27	4645	fprintf(log,"\t\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4646	} /* if */
dvander@27	4647	if (ref->dim.array.length!=1)
dvander@27	4648	fprintf(log,"\t\t\t\t<size value=\"%ld\"/>\n",(long)ref->dim.array.length);
dvander@27	4649	} /* if */
dvander@27	4650	fprintf(log,"\t\t\t</member>\n");
dvander@27	4651	enumroot=enumroot->next;
dvander@27	4652	} /* while */
dvander@27	4653	} /* if */
dvander@27	4654	assert(sym->refer!=NULL);
dvander@27	4655	for (i=0; i<sym->numrefers; i++) {
dvander@27	4656	if ((ref=sym->refer[i])!=NULL)
dvander@27	4657	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4658	} /* for */
dvander@27	4659	if (sym->documentation!=NULL)
dvander@27	4660	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4661	fprintf(log,"\t\t</member>\n");
dvander@27	4662	} /* for */
dvander@27	4663
dvander@27	4664	fprintf(log,"\n\t\t<!-- constants -->\n");
dvander@27	4665	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4666	if (sym->parent!=NULL)
dvander@27	4667	continue; /* hierarchical data type */
dvander@27	4668	assert(sym->ident==iCONSTEXPR \|\| sym->ident==iVARIABLE
dvander@27	4669	\|\| sym->ident==iARRAY \|\| sym->ident==iFUNCTN);
dvander@27	4670	if (sym->ident!=iCONSTEXPR)
dvander@27	4671	continue;
dvander@27	4672	if ((sym->usage & uREAD)==0 \|\| (sym->usage & (uENUMFIELD \| uENUMROOT))!=0)
dvander@27	4673	continue;
dvander@27	4674	fprintf(log,"\t\t<member name=\"C:%s\" value=\"%ld\">\n",funcdisplayname(symname,sym->name),sym->addr);
dvander@27	4675	if (sym->tag!=0) {
dvander@27	4676	tagsym=find_tag_byval(sym->tag);
dvander@27	4677	assert(tagsym!=NULL);
dvander@27	4678	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4679	} /* if */
dvander@27	4680	assert(sym->refer!=NULL);
dvander@27	4681	for (i=0; i<sym->numrefers; i++) {
dvander@27	4682	if ((ref=sym->refer[i])!=NULL)
dvander@27	4683	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4684	} /* for */
dvander@27	4685	if (sym->documentation!=NULL)
dvander@27	4686	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4687	fprintf(log,"\t\t</member>\n");
dvander@27	4688	} /* for */
dvander@27	4689
dvander@27	4690	fprintf(log,"\n\t\t<!-- variables -->\n");
dvander@27	4691	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4692	if (sym->parent!=NULL)
dvander@27	4693	continue; /* hierarchical data type */
dvander@27	4694	if (sym->ident!=iVARIABLE && sym->ident!=iARRAY)
dvander@27	4695	continue;
dvander@27	4696	fprintf(log,"\t\t<member name=\"F:%s\">\n",funcdisplayname(symname,sym->name));
dvander@27	4697	if (sym->tag!=0) {
dvander@27	4698	tagsym=find_tag_byval(sym->tag);
dvander@27	4699	assert(tagsym!=NULL);
dvander@27	4700	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4701	} /* if */
dvander@27	4702	assert(sym->refer!=NULL);
dvander@27	4703	if ((sym->usage & uPUBLIC)!=0)
dvander@27	4704	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	4705	for (i=0; i<sym->numrefers; i++) {
dvander@27	4706	if ((ref=sym->refer[i])!=NULL)
dvander@27	4707	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4708	} /* for */
dvander@27	4709	if (sym->documentation!=NULL)
dvander@27	4710	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4711	fprintf(log,"\t\t</member>\n");
dvander@27	4712	} /* for */
dvander@27	4713
dvander@27	4714	fprintf(log,"\n\t\t<!-- functions -->\n");
dvander@27	4715	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4716	if (sym->parent!=NULL)
dvander@27	4717	continue; /* hierarchical data type */
dvander@27	4718	if (sym->ident!=iFUNCTN)
dvander@27	4719	continue;
dvander@27	4720	if ((sym->usage & (uREAD \| uNATIVE))==uNATIVE)
dvander@27	4721	continue; /* unused native function */
dvander@27	4722	funcdisplayname(symname,sym->name);
dvander@27	4723	xmlencode(symname,symname);
dvander@27	4724	fprintf(log,"\t\t<member name=\"M:%s\" syntax=\"%s(",symname,symname);
dvander@27	4725	/* print only the names of the parameters between the parentheses */
dvander@27	4726	assert(sym->dim.arglist!=NULL);
dvander@27	4727	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	4728	int dim;
dvander@27	4729	if (arg>0)
dvander@27	4730	fprintf(log,", ");
dvander@27	4731	switch (sym->dim.arglist[arg].ident) {
dvander@27	4732	case iVARIABLE:
dvander@27	4733	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	4734	break;
dvander@27	4735	case iREFERENCE:
dvander@27	4736	fprintf(log,"&%s",sym->dim.arglist[arg].name);
dvander@27	4737	break;
dvander@27	4738	case iREFARRAY:
dvander@27	4739	fprintf(log,"%s",sym->dim.arglist[arg].name);
dvander@27	4740	for (dim=0; dim<sym->dim.arglist[arg].numdim;dim++)
dvander@27	4741	fprintf(log,"[]");
dvander@27	4742	break;
dvander@27	4743	case iVARARGS:
dvander@27	4744	fprintf(log,"...");
dvander@27	4745	break;
dvander@27	4746	} /* switch */
dvander@27	4747	} /* for */
dvander@27	4748	/* ??? should also print an "array return" size */
dvander@27	4749	fprintf(log,")\">\n");
dvander@27	4750	if (sym->tag!=0) {
dvander@27	4751	tagsym=find_tag_byval(sym->tag);
dvander@27	4752	assert(tagsym!=NULL);
dvander@27	4753	fprintf(log,"\t\t\t<tagname value=\"%s\"/>\n",tagsym->name);
dvander@27	4754	} /* if */
dvander@27	4755	/* check whether this function is called from the outside */
dvander@27	4756	if ((sym->usage & uNATIVE)!=0)
dvander@27	4757	fprintf(log,"\t\t\t<attribute name=\"native\"/>\n");
dvander@27	4758	if ((sym->usage & uPUBLIC)!=0)
dvander@27	4759	fprintf(log,"\t\t\t<attribute name=\"public\"/>\n");
dvander@27	4760	if (strcmp(sym->name,uMAINFUNC)==0 \|\| strcmp(sym->name,uENTRYFUNC)==0)
dvander@27	4761	fprintf(log,"\t\t\t<attribute name=\"entry\"/>\n");
dvander@27	4762	if ((sym->usage & uNATIVE)==0)
dvander@27	4763	fprintf(log,"\t\t\t<stacksize value=\"%ld\"/>\n",(long)sym->x.stacksize);
dvander@27	4764	if (sym->states!=NULL) {
dvander@27	4765	constvalue *stlist=sym->states->next;
dvander@27	4766	assert(stlist!=NULL); /* there should be at least one state item */
dvander@27	4767	while (stlist!=NULL && stlist->index==-1)
dvander@27	4768	stlist=stlist->next;
dvander@27	4769	assert(stlist!=NULL); /* state id should be found */
dvander@27	4770	i=state_getfsa(stlist->index);
dvander@27	4771	assert(i>=0); /* automaton 0 exists */
dvander@27	4772	stlist=automaton_findid(i);
dvander@27	4773	assert(stlist!=NULL); /* automaton should be found */
dvander@27	4774	fprintf(log,"\t\t\t<automaton name=\"%s\"/>\n", strlen(stlist->name)>0 ? stlist->name : "(anonymous)");
dvander@27	4775	//??? dump state decision table
dvander@27	4776	} /* if */
dvander@27	4777	assert(sym->refer!=NULL);
dvander@27	4778	for (i=0; i<sym->numrefers; i++)
dvander@27	4779	if ((ref=sym->refer[i])!=NULL)
dvander@27	4780	fprintf(log,"\t\t\t<referrer name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4781	/* print all symbols that are required for this function to compile */
dvander@27	4782	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	4783	if (ref==sym)
dvander@27	4784	continue;
dvander@27	4785	for (i=0; i<ref->numrefers; i++)
dvander@27	4786	if (ref->refer[i]==sym)
dvander@27	4787	fprintf(log,"\t\t\t<dependency name=\"%s\"/>\n",xmlencode(symname,funcdisplayname(symname,ref->name)));
dvander@27	4788	} /* for */
dvander@27	4789	/* print parameter list, with tag & const information, plus descriptions */
dvander@27	4790	assert(sym->dim.arglist!=NULL);
dvander@27	4791	for (arg=0; sym->dim.arglist[arg].ident!=0; arg++) {
dvander@27	4792	int dim,paraminfo;
dvander@27	4793	char outer_start,inner_start;
dvander@27	4794	int outer_length,inner_length;
dvander@27	4795	if (sym->dim.arglist[arg].ident==iVARARGS)
dvander@27	4796	fprintf(log,"\t\t\t<param name=\"...\">\n");
dvander@27	4797	else
dvander@27	4798	fprintf(log,"\t\t\t<param name=\"%s\">\n",sym->dim.arglist[arg].name);
dvander@27	4799	/* print the tag name(s) for each parameter */
dvander@27	4800	assert(sym->dim.arglist[arg].numtags>0);
dvander@27	4801	assert(sym->dim.arglist[arg].tags!=NULL);
dvander@27	4802	paraminfo=(sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0)
dvander@27	4803	\|\| sym->dim.arglist[arg].ident==iREFERENCE
dvander@27	4804	\|\| sym->dim.arglist[arg].ident==iREFARRAY;
dvander@27	4805	if (paraminfo)
dvander@27	4806	fprintf(log,"\t\t\t\t<paraminfo>");
dvander@27	4807	if (sym->dim.arglist[arg].numtags>1 \|\| sym->dim.arglist[arg].tags[0]!=0) {
dvander@27	4808	assert(paraminfo);
dvander@27	4809	if (sym->dim.arglist[arg].numtags>1)
dvander@27	4810	fprintf(log," {");
dvander@27	4811	for (i=0; i<sym->dim.arglist[arg].numtags; i++) {
dvander@27	4812	if (i>0)
dvander@27	4813	fprintf(log,",");
dvander@27	4814	tagsym=find_tag_byval(sym->dim.arglist[arg].tags[i]);
dvander@27	4815	assert(tagsym!=NULL);
dvander@27	4816	fprintf(log,"%s",tagsym->name);
dvander@27	4817	} /* for */
dvander@27	4818	if (sym->dim.arglist[arg].numtags>1)
dvander@27	4819	fprintf(log,"}");
dvander@27	4820	} /* if */
dvander@27	4821	switch (sym->dim.arglist[arg].ident) {
dvander@27	4822	case iREFERENCE:
dvander@27	4823	fprintf(log," &");
dvander@27	4824	break;
dvander@27	4825	case iREFARRAY:
dvander@27	4826	fprintf(log," ");
dvander@27	4827	for (dim=0; dim<sym->dim.arglist[arg].numdim; dim++) {
dvander@27	4828	if (sym->dim.arglist[arg].dim[dim]==0) {
dvander@27	4829	fprintf(log,"[]");
dvander@27	4830	} else {
dvander@27	4831	//??? find index tag
dvander@27	4832	fprintf(log,"[%d]",sym->dim.arglist[arg].dim[dim]);
dvander@27	4833	} /* if */
dvander@27	4834	} /* for */
dvander@27	4835	break;
dvander@27	4836	} /* switch */
dvander@27	4837	if (paraminfo)
dvander@27	4838	fprintf(log," </paraminfo>\n");
dvander@27	4839	/* print the user description of the parameter (parse through
dvander@27	4840	* sym->documentation)
dvander@27	4841	*/
dvander@27	4842	if (sym->documentation!=NULL
dvander@27	4843	&& find_xmltag(sym->documentation, "param", "name", sym->dim.arglist[arg].name,
dvander@27	4844	&outer_start, &outer_length, &inner_start, &inner_length))
dvander@27	4845	{
dvander@27	4846	char *tail;
dvander@27	4847	fprintf(log,"\t\t\t\t%.*s\n",inner_length,inner_start);
dvander@27	4848	/* delete from documentation string */
dvander@27	4849	tail=outer_start+outer_length;
dvander@27	4850	memmove(outer_start,tail,strlen(tail)+1);
dvander@27	4851	} /* if */
dvander@27	4852	fprintf(log,"\t\t\t</param>\n");
dvander@27	4853	} /* for */
dvander@27	4854	if (sym->documentation!=NULL)
dvander@27	4855	fprintf(log,"\t\t\t%s\n",sym->documentation);
dvander@27	4856	fprintf(log,"\t\t</member>\n");
dvander@27	4857	} /* for */
dvander@27	4858
dvander@27	4859	fprintf(log,"\n\t</members>\n");
dvander@27	4860	fprintf(log,"</doc>\n");
dvander@27	4861	}
dvander@27	4862	#endif
dvander@27	4863
dvander@27	4864	/* Every symbol has a referrer list, that contains the functions that use
dvander@27	4865	* the symbol. Now, if function "apple" is accessed by functions "banana" and
dvander@27	4866	* "citron", but neither function "banana" nor "citron" are used by anyone
dvander@27	4867	* else, then, by inference, function "apple" is not used either.
dvander@27	4868	*/
dvander@27	4869	static void reduce_referrers(symbol *root)
dvander@27	4870	{
dvander@27	4871	int i,restart;
dvander@27	4872	symbol sym,ref;
dvander@27	4873
dvander@27	4874	do {
dvander@27	4875	restart=0;
dvander@27	4876	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4877	if (sym->parent!=NULL)
dvander@27	4878	continue; /* hierarchical data type */
dvander@27	4879	if (sym->ident==iFUNCTN
dvander@27	4880	&& (sym->usage & uNATIVE)==0
dvander@27	4881	&& (sym->usage & uPUBLIC)==0 && strcmp(sym->name,uMAINFUNC)!=0 && strcmp(sym->name,uENTRYFUNC)!=0
dvander@27	4882	&& count_referrers(sym)==0)
dvander@27	4883	{
dvander@27	4884	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	4885	/* find all symbols that are referred by this symbol */
dvander@27	4886	for (ref=root->next; ref!=NULL; ref=ref->next) {
dvander@27	4887	if (ref->parent!=NULL)
dvander@27	4888	continue; /* hierarchical data type */
dvander@27	4889	assert(ref->refer!=NULL);
dvander@27	4890	for (i=0; i<ref->numrefers && ref->refer[i]!=sym; i++)
dvander@27	4891	/* nothing */;
dvander@27	4892	if (i<ref->numrefers) {
dvander@27	4893	assert(ref->refer[i]==sym);
dvander@27	4894	ref->refer[i]=NULL;
dvander@27	4895	restart++;
dvander@27	4896	} /* if */
dvander@27	4897	} /* for */
dvander@27	4898	} else if ((sym->ident==iVARIABLE \|\| sym->ident==iARRAY)
dvander@27	4899	&& (sym->usage & uPUBLIC)==0
dvander@27	4900	&& sym->parent==NULL
dvander@27	4901	&& count_referrers(sym)==0)
dvander@27	4902	{
dvander@27	4903	sym->usage&=~(uREAD \| uWRITTEN); /* erase usage bits if there is no referrer */
dvander@27	4904	} /* if */
dvander@27	4905	} /* for */
dvander@27	4906	/* after removing a symbol, check whether more can be removed */
dvander@27	4907	} while (restart>0);
dvander@27	4908	}
dvander@27	4909
dvander@27	4910	#if !defined SC_LIGHT
dvander@27	4911	static long max_stacksize_recurse(symbol sourcesym,symbol sym,long basesize,int pubfuncparams,int recursion)
dvander@27	4912	{
dvander@27	4913	long size,maxsize;
dvander@27	4914	int i;
dvander@27	4915
dvander@27	4916	assert(sym!=NULL);
dvander@27	4917	assert(sym->ident==iFUNCTN);
dvander@27	4918	assert((sym->usage & uNATIVE)==0);
dvander@27	4919	assert(recursion!=NULL);
dvander@27	4920
dvander@27	4921	maxsize=sym->x.stacksize;
dvander@27	4922	for (i=0; i<sym->numrefers; i++) {
dvander@27	4923	if (sym->refer[i]!=NULL) {
dvander@27	4924	assert(sym->refer[i]->ident==iFUNCTN);
dvander@27	4925	assert((sym->refer[i]->usage & uNATIVE)==0); /* a native function cannot refer to a user-function */
dvander@27	4926	if (sym->refer[i]==sourcesym) { /* recursion detection */
dvander@27	4927	*recursion=1;
dvander@27	4928	break; /* recursion was detected, quit loop */
dvander@27	4929	} /* if */
dvander@27	4930	size=max_stacksize_recurse(sourcesym,sym->refer[i],sym->x.stacksize,pubfuncparams,recursion);
dvander@27	4931	if (maxsize<size)
dvander@27	4932	maxsize=size;
dvander@27	4933	} /* if */
dvander@27	4934	} /* for */
dvander@27	4935
dvander@27	4936	if ((sym->usage & uPUBLIC)!=0) {
dvander@27	4937	/* Find out how many parameters a public function has, then see if this
dvander@27	4938	* is bigger than some maximum
dvander@27	4939	*/
dvander@27	4940	arginfo *arg=sym->dim.arglist;
dvander@27	4941	int count=0;
dvander@27	4942	assert(arg!=0);
dvander@27	4943	while (arg->ident!=0) {
dvander@27	4944	count++;
dvander@27	4945	arg++;
dvander@27	4946	} /* while */
dvander@27	4947	assert(pubfuncparams!=0);
dvander@27	4948	if (count>*pubfuncparams)
dvander@27	4949	*pubfuncparams=count;
dvander@27	4950	} /* if */
dvander@27	4951
dvander@27	4952	return maxsize+basesize;
dvander@27	4953	}
dvander@27	4954
dvander@27	4955	static long max_stacksize(symbol root,int recursion)
dvander@27	4956	{
dvander@27	4957	/* Loop over all non-native functions. For each function, loop
dvander@27	4958	* over all of its referrers, accumulating the stack requirements.
dvander@27	4959	* Detect (indirect) recursion with a "mark-and-sweep" algorithm.
dvander@27	4960	* I (mis-)use the "compound" field of the symbol structure for
dvander@27	4961	* the marker, as this field is unused for functions.
dvander@27	4962	*
dvander@27	4963	* Note that the stack is shared with the heap. A host application
dvander@27	4964	* may "eat" cells from the heap as well, through amx_Allot(). The
dvander@27	4965	* stack requirements are thus only an estimate.
dvander@27	4966	*/
dvander@27	4967	long size,maxsize;
dvander@27	4968	int maxparams;
dvander@27	4969	symbol *sym;
dvander@27	4970
dvander@27	4971	assert(root!=NULL);
dvander@27	4972	assert(recursion!=NULL);
dvander@27	4973	#if !defined NDEBUG
dvander@27	4974	for (sym=root->next; sym!=NULL; sym=sym->next)
dvander@27	4975	if (sym->ident==iFUNCTN)
dvander@27	4976	assert(sym->compound==0);
dvander@27	4977	#endif
dvander@27	4978
dvander@27	4979	maxsize=0;
dvander@27	4980	maxparams=0;
dvander@27	4981	recursion=0; / assume no recursion */
dvander@27	4982	for (sym=root->next; sym!=NULL; sym=sym->next) {
dvander@27	4983	/* drop out if this is not a user-implemented function */
dvander@27	4984	if (sym->ident!=iFUNCTN \|\| (sym->usage & uNATIVE)!=0)
dvander@27	4985	continue;
dvander@27	4986	/* accumulate stack size for this symbol */
dvander@27	4987	size=max_stacksize_recurse(sym,sym,0L,&maxparams,recursion);
dvander@27	4988	assert(size>=0);
dvander@27	4989	if (maxsize<size)
dvander@27	4990	maxsize=size;
dvander@27	4991	} /* for */
dvander@27	4992
dvander@27	4993	maxsize++; /* +1 because a zero cell is always pushed on top
dvander@27	4994	* of the stack to catch stack overwrites */
dvander@27	4995	return maxsize+(maxparams+1);/* +1 because # of parameters is always pushed on entry */
dvander@27	4996	}
dvander@27	4997	#endif
dvander@27	4998
dvander@27	4999	/* testsymbols - test for unused local or global variables
dvander@27	5000	*
dvander@27	5001	* "Public" functions are excluded from the check, since these
dvander@27	5002	* may be exported to other object modules.
dvander@27	5003	* Labels are excluded from the check if the argument 'testlabs'
dvander@27	5004	* is 0. Thus, labels are not tested until the end of the function.
dvander@27	5005	* Constants may also be excluded (convenient for global constants).
dvander@27	5006	*
dvander@27	5007	* When the nesting level drops below "level", the check stops.
dvander@27	5008	*
dvander@27	5009	* The function returns whether there is an "entry" point for the file.
dvander@27	5010	* This flag will only be 1 when browsing the global symbol table.
dvander@27	5011	*/
dvander@27	5012	static int testsymbols(symbol *root,int level,int testlabs,int testconst)
dvander@27	5013	{
dvander@27	5014	char symname[2*sNAMEMAX+16];
dvander@27	5015	int entry=FALSE;
dvander@27	5016
dvander@27	5017	symbol *sym=root->next;
dvander@27	5018	while (sym!=NULL && sym->compound>=level) {
dvander@27	5019	switch (sym->ident) {
dvander@27	5020	case iLABEL:
dvander@27	5021	if (testlabs) {
dvander@27	5022	if ((sym->usage & uDEFINE)==0) {
dvander@27	5023	error(19,sym->name); /* not a label: ... */
dvander@27	5024	} else if ((sym->usage & uREAD)==0) {
dvander@27	5025	errorset(sSETPOS,sym->lnumber);
dvander@27	5026	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5027	} /* if */
dvander@27	5028	} /* if */
dvander@27	5029	break;
dvander@27	5030	case iFUNCTN:
dvander@27	5031	if ((sym->usage & (uDEFINE \| uREAD \| uNATIVE \| uSTOCK \| uPUBLIC))==uDEFINE) {
dvander@27	5032	funcdisplayname(symname,sym->name);
dvander@27	5033	if (strlen(symname)>0)
dvander@27	5034	error(203,symname); /* symbol isn't used ... (and not public/native/stock) */
dvander@27	5035	} /* if */
dvander@27	5036	if ((sym->usage & uPUBLIC)!=0 \|\| strcmp(sym->name,uMAINFUNC)==0)
dvander@27	5037	entry=TRUE; /* there is an entry point */
dvander@27	5038	/* also mark the function to the debug information */
dvander@27	5039	if (((sym->usage & uREAD)!=0 \|\| (sym->usage & uPUBLIC)!=0) && (sym->usage & uNATIVE)==0)
dvander@27	5040	insert_dbgsymbol(sym);
dvander@27	5041	break;
dvander@27	5042	case iCONSTEXPR:
dvander@27	5043	if (testconst && (sym->usage & uREAD)==0) {
dvander@27	5044	errorset(sSETPOS,sym->lnumber);
dvander@27	5045	error(203,sym->name); /* symbol isn't used: ... */
dvander@27	5046	} /* if */
dvander@27	5047	break;
dvander@27	5048	default:
dvander@27	5049	/* a variable */
dvander@27	5050	if (sym->parent!=NULL)
dvander@27	5051	break; /* hierarchical data type */
dvander@27	5052	if ((sym->usage & (uWRITTEN \| uREAD \| uSTOCK))==0) {
dvander@27	5053	if (testconst)
dvander@27	5054	errorset(sSETPOS,sym->lnumber);
dvander@27	5055	error(203,sym->name,sym->lnumber); /* symbol isn't used (and not stock) */
dvander@27	5056	} else if ((sym->usage & (uREAD \| uSTOCK \| uPUBLIC))==0) {
dvander@27	5057	errorset(sSETPOS,sym->lnumber);
dvander@27	5058	error(204,sym->name); /* value assigned to symbol is never used */
dvander@27	5059	#if 0 // ??? not sure whether it is a good idea to force people use "const"
dvander@27	5060	} else if ((sym->usage & (uWRITTEN \| uPUBLIC \| uCONST))==0 && sym->ident==iREFARRAY) {
dvander@27	5061	errorset(sSETPOS,sym->lnumber);
dvander@27	5062	error(214,sym->name); /* make array argument "const" */
dvander@27	5063	#endif
dvander@27	5064	} /* if */
dvander@27	5065	/* also mark the variable (local or global) to the debug information */
dvander@27	5066	if ((sym->usage & (uWRITTEN \| uREAD))!=0 && (sym->usage & uNATIVE)==0)
dvander@27	5067	insert_dbgsymbol(sym);
dvander@27	5068	} /* if */
dvander@27	5069	sym=sym->next;
dvander@27	5070	} /* while */
dvander@27	5071
dvander@27	5072	return entry;
dvander@27	5073	}
dvander@27	5074
dvander@27	5075	static cell calc_array_datasize(symbol sym, cell offset)
dvander@27	5076	{
dvander@27	5077	cell length;
dvander@27	5078
dvander@27	5079	assert(sym!=NULL);
dvander@27	5080	assert(sym->ident==iARRAY \|\| sym->ident==iREFARRAY);
dvander@27	5081	length=sym->dim.array.length;
dvander@27	5082	if (sym->dim.array.level > 0) {
dvander@27	5083	cell sublength=calc_array_datasize(finddepend(sym),offset);
dvander@27	5084	if (offset!=NULL)
dvander@27	5085	offset=length(*offset+sizeof(cell));
dvander@27	5086	if (sublength>0)
dvander@27	5087	length=lengthsublength;
dvander@27	5088	else
dvander@27	5089	length=0;
dvander@27	5090	} else {
dvander@27	5091	if (offset!=NULL)
dvander@27	5092	*offset=0;
dvander@27	5093	} /* if */
dvander@27	5094	return length;
dvander@27	5095	}
dvander@27	5096
dvander@27	5097	static void destructsymbols(symbol *root,int level)
dvander@27	5098	{
dvander@27	5099	cell offset=0;
dvander@27	5100	int savepri=FALSE;
dvander@27	5101	symbol *sym=root->next;
dvander@27	5102	while (sym!=NULL && sym->compound>=level) {
dvander@27	5103	if (sym->ident==iVARIABLE \|\| sym->ident==iARRAY) {
dvander@27	5104	char symbolname[16];
dvander@27	5105	symbol *opsym;
dvander@27	5106	cell elements;
dvander@27	5107	/* check that the '~' operator is defined for this tag */
dvander@27	5108	operator_symname(symbolname,"~",sym->tag,0,1,0);
dvander@27	5109	if ((opsym=findglb(symbolname,sGLOBAL))!=NULL) {
dvander@27	5110	/* save PRI, in case of a return statment */
dvander@27	5111	if (!savepri) {
dvander@27	5112	pushreg(sPRI); /* right-hand operand is in PRI */
dvander@27	5113	savepri=TRUE;
dvander@27	5114	} /* if */
dvander@27	5115	/* if the variable is an array, get the number of elements */
dvander@27	5116	if (sym->ident==iARRAY) {
dvander@27	5117	elements=calc_array_datasize(sym,&offset);
dvander@27	5118	/* "elements" can be zero when the variable is declared like
dvander@27	5119	* new mytag: myvar[2][] = { {1, 2}, {3, 4} }
dvander@27	5120	* one should declare all dimensions!
dvander@27	5121	*/
dvander@27	5122	if (elements==0)
dvander@27	5123	error(46,sym->name); /* array size is unknown */
dvander@27	5124	} else {
dvander@27	5125	elements=1;
dvander@27	5126	offset=0;
dvander@27	5127	} /* if */
dvander@27	5128	pushval(elements);
dvander@27	5129	/* call the '~' operator */
dvander@27	5130	address(sym,sPRI);
dvander@27	5131	addconst(offset); /* add offset to array data to the address */
dvander@27	5132	pushreg(sPRI);
dvander@101	5133	pushval(2 /* sizeof(cell)/ );/* 2 parameters */
dvander@27	5134	assert(opsym->ident==iFUNCTN);
dvander@27	5135	ffcall(opsym,NULL,1);
dvander@27	5136	if (sc_status!=statSKIP)
dvander@27	5137	markusage(opsym,uREAD); /* do not mark as "used" when this call itself is skipped */
dvander@27	5138	if ((opsym->usage & uNATIVE)!=0 && opsym->x.lib!=NULL)
dvander@27	5139	opsym->x.lib->value += 1; /* increment "usage count" of the library */
dvander@27	5140	} /* if */
dvander@27	5141	} /* if */
dvander@27	5142	sym=sym->next;
dvander@27	5143	} /* while */
dvander@27	5144	/* restore PRI, if it was saved */
dvander@27	5145	if (savepri)
dvander@27	5146	popreg(sPRI);
dvander@27	5147	}
dvander@27	5148
dvander@27	5149	static constvalue insert_constval(constvalue prev,constvalue next,const char name,cell val,
dvander@27	5150	int index)
dvander@27	5151	{
dvander@27	5152	constvalue *cur;
dvander@27	5153
dvander@27	5154	if ((cur=(constvalue*)malloc(sizeof(constvalue)))==NULL)
dvander@27	5155	error(103); /* insufficient memory (fatal error) */
dvander@27	5156	memset(cur,0,sizeof(constvalue));
dvander@27	5157	if (name!=NULL) {
dvander@27	5158	assert(strlen(name)<sNAMEMAX);
dvander@27	5159	strcpy(cur->name,name);
dvander@27	5160	} /* if */
dvander@27	5161	cur->value=val;
dvander@27	5162	cur->index=index;
dvander@27	5163	cur->next=next;
dvander@27	5164	prev->next=cur;
dvander@27	5165	return cur;
dvander@27	5166	}
dvander@27	5167
dvander@27	5168	SC_FUNC constvalue append_constval(constvalue table,const char *name,cell val,int index)
dvander@27	5169	{
dvander@27	5170	constvalue cur,prev;
dvander@27	5171
dvander@27	5172	/* find the end of the constant table */
dvander@27	5173	for (prev=table, cur=table->next; cur!=NULL; prev=cur, cur=cur->next)
dvander@27	5174	/* nothing */;
dvander@27	5175	return insert_constval(prev,NULL,name,val,index);
dvander@27	5176	}
dvander@27	5177
dvander@27	5178	SC_FUNC constvalue find_constval(constvalue table,char *name,int index)
dvander@27	5179	{
dvander@27	5180	constvalue *ptr = table->next;
dvander@27	5181
dvander@27	5182	while (ptr!=NULL) {
dvander@27	5183	if (strcmp(name,ptr->name)==0 && ptr->index==index)
dvander@27	5184	return ptr;
dvander@27	5185	ptr=ptr->next;
dvander@27	5186	} /* while */
dvander@27	5187	return NULL;
dvander@27	5188	}
dvander@27	5189
dvander@27	5190	static constvalue find_constval_byval(constvalue table,cell val)
dvander@27	5191	{
dvander@27	5192	constvalue *ptr = table->next;
dvander@27	5193
dvander@27	5194	while (ptr!=NULL) {
dvander@27	5195	if (ptr->value==val)
dvander@27	5196	return ptr;
dvander@27	5197	ptr=ptr->next;
dvander@27	5198	} /* while */
dvander@27	5199	return NULL;
dvander@27	5200	}
dvander@27	5201
dvander@27	5202	#if 0 /* never used */
dvander@27	5203	static int delete_constval(constvalue table,char name)
dvander@27	5204	{
dvander@27	5205	constvalue *prev = table;
dvander@27	5206	constvalue *cur = prev->next;
dvander@27	5207
dvander@27	5208	while (cur!=NULL) {
dvander@27	5209	if (strcmp(name,cur->name)==0) {
dvander@27	5210	prev->next=cur->next;
dvander@27	5211	free(cur);
dvander@27	5212	return TRUE;
dvander@27	5213	} /* if */
dvander@27	5214	prev=cur;
dvander@27	5215	cur=cur->next;
dvander@27	5216	} /* while */
dvander@27	5217	return FALSE;
dvander@27	5218	}
dvander@27	5219	#endif
dvander@27	5220
dvander@27	5221	SC_FUNC void delete_consttable(constvalue *table)
dvander@27	5222	{
dvander@27	5223	constvalue cur=table->next, next;
dvander@27	5224
dvander@27	5225	while (cur!=NULL) {
dvander@27	5226	next=cur->next;
dvander@27	5227	free(cur);
dvander@27	5228	cur=next;
dvander@27	5229	} /* while */
dvander@27	5230	memset(table,0,sizeof(constvalue));
dvander@27	5231	}
dvander@27	5232
dvander@27	5233	/* add_constant
dvander@27	5234	*
dvander@27	5235	* Adds a symbol to the symbol table. Returns NULL on failure.
dvander@27	5236	*/
dvander@27	5237	SC_FUNC symbol add_constant(char name,cell val,int vclass,int tag)
dvander@27	5238	{
dvander@27	5239	symbol *sym;
dvander@27	5240
dvander@27	5241	/* Test whether a global or local symbol with the same name exists. Since
dvander@27	5242	* constants are stored in the symbols table, this also finds previously
dvander@27	5243	* defind constants. */
dvander@27	5244	sym=findglb(name,sSTATEVAR);
dvander@27	5245	if (!sym)
dvander@27	5246	sym=findloc(name);
dvander@27	5247	if (sym) {
dvander@27	5248	int redef=0;
dvander@27	5249	if (sym->ident!=iCONSTEXPR)
dvander@27	5250	redef=1; /* redefinition a function/variable to a constant is not allowed */
dvander@27	5251	if ((sym->usage & uENUMFIELD)!=0) {
dvander@27	5252	/* enum field, special case if it has a different tag and the new symbol is also an enum field */
dvander@27	5253	constvalue *tagid;
dvander@27	5254	symbol *tagsym;
dvander@27	5255	if (sym->tag==tag)
dvander@27	5256	redef=1; /* enumeration field is redefined (same tag) */
dvander@27	5257	tagid=find_tag_byval(tag);
dvander@27	5258	if (tagid==NULL) {
dvander@27	5259	redef=1; /* new constant does not have a tag */
dvander@27	5260	} else {
dvander@27	5261	tagsym=findconst(tagid->name,NULL);
dvander@27	5262	if (tagsym==NULL \|\| (tagsym->usage & uENUMROOT)==0)
dvander@27	5263	redef=1; /* new constant is not an enumeration field */
dvander@27	5264	} /* if */
dvander@27	5265	/* in this particular case (enumeration field that is part of a different
dvander@27	5266	* enum, and non-conflicting with plain constants) we want to be able to
dvander@27	5267	* redefine it
dvander@27	5268	*/
dvander@27	5269	if (!redef)
dvander@27	5270	goto redef_enumfield;
dvander@27	5271	} else if (sym->tag!=tag) {
dvander@27	5272	redef=1; /* redefinition of a constant (non-enum) to a different tag is not allowed */
dvander@27	5273	} /* if */
dvander@27	5274	if (redef) {
dvander@27	5275	error(21,name); /* symbol already defined */
dvander@27	5276	return NULL;
dvander@27	5277	} else if (sym->addr!=val) {
dvander@27	5278	error(201,name); /* redefinition of constant (different value) */
dvander@27	5279	sym->addr=val; /* set new value */
dvander@27	5280	} /* if */
dvander@27	5281	/* silently ignore redefinitions of constants with the same value & tag */
dvander@27	5282	return sym;
dvander@27	5283	} /* if */
dvander@27	5284
dvander@27	5285	/* constant doesn't exist yet (or is allowed to be redefined) */
dvander@27	5286	redef_enumfield:
dvander@27	5287	sym=addsym(name,val,iCONSTEXPR,vclass,tag,uDEFINE);
dvander@27	5288	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	5289	if (sc_status == statIDLE)
dvander@27	5290	sym->usage \|= uPREDEF;
dvander@27	5291	return sym;
dvander@27	5292	}
dvander@27	5293
dvander@27	5294	/* statement - The Statement Parser
dvander@27	5295	*
dvander@27	5296	* This routine is called whenever the parser needs to know what statement
dvander@27	5297	* it encounters (i.e. whenever program syntax requires a statement).
dvander@27	5298	*/
dvander@27	5299	static void statement(int *lastindent,int allow_decl)
dvander@27	5300	{
faluco@62	5301	int tok,save;
dvander@27	5302	cell val;
dvander@27	5303	char *st;
dvander@27	5304
dvander@27	5305	if (!freading) {
dvander@27	5306	error(36); /* empty statement */
dvander@27	5307	return;
dvander@27	5308	} /* if */
dvander@27	5309	errorset(sRESET,0);
dvander@27	5310
dvander@27	5311	tok=lex(&val,&st);
dvander@27	5312	if (tok!='{') {
dvander@27	5313	insert_dbgline(fline);
dvander@27	5314	setline(TRUE);
dvander@27	5315	} /* if */
dvander@27	5316	/* lex() has set stmtindent */
dvander@27	5317	if (lastindent!=NULL && tok!=tLABEL) {
dvander@27	5318	if (lastindent>=0 && lastindent!=stmtindent && !indent_nowarn && sc_tabsize>0)
dvander@27	5319	error(217); /* loose indentation */
dvander@27	5320	*lastindent=stmtindent;
dvander@27	5321	indent_nowarn=FALSE; /* if warning was blocked, re-enable it */
dvander@27	5322	} /* if */
dvander@27	5323	switch (tok) {
dvander@27	5324	case 0:
dvander@27	5325	/* nothing */
dvander@27	5326	break;
dvander@27	5327	case tNEW:
dvander@27	5328	if (allow_decl) {
dvander@27	5329	autozero=1;
dvander@27	5330	declloc(FALSE);
dvander@27	5331	lastst=tNEW;
dvander@27	5332	} else {
dvander@27	5333	error(3); /* declaration only valid in a block */
dvander@27	5334	} /* if */
dvander@27	5335	break;
dvander@27	5336	case tDECL:
dvander@27	5337	if (allow_decl) {
dvander@27	5338	autozero=0;
dvander@27	5339	declloc(FALSE);
dvander@27	5340	lastst=tDECL;
dvander@27	5341	} else {
dvander@27	5342	error(3); /* declaration only valid in a block */
dvander@27	5343	} /* if */
dvander@27	5344	break;
dvander@27	5345	case tSTATIC:
dvander@27	5346	if (allow_decl) {
dvander@27	5347	declloc(TRUE);
dvander@27	5348	lastst=tNEW;
dvander@27	5349	} else {
dvander@27	5350	error(3); /* declaration only valid in a block */
dvander@27	5351	} /* if */
dvander@27	5352	break;
dvander@27	5353	case '{':
faluco@62	5354	case tBEGIN:
faluco@62	5355	save=fline;
dvander@27	5356	if (!matchtoken('}')) /* {} is the empty statement */
faluco@62	5357	compound(save==fline,tok);
dvander@27	5358	/* lastst (for "last statement") does not change */
dvander@27	5359	break;
dvander@27	5360	case ';':
dvander@27	5361	error(36); /* empty statement */
dvander@27	5362	break;
dvander@27	5363	case tIF:
faluco@62	5364	lastst=doif();
dvander@27	5365	break;
dvander@27	5366	case tWHILE:
faluco@62	5367	lastst=dowhile();
dvander@27	5368	break;
dvander@27	5369	case tDO:
faluco@62	5370	lastst=dodo();
dvander@27	5371	break;
dvander@27	5372	case tFOR:
faluco@62	5373	lastst=dofor();
dvander@27	5374	break;
dvander@27	5375	case tSWITCH:
dvander@27	5376	doswitch();
dvander@27	5377	lastst=tSWITCH;
dvander@27	5378	break;
dvander@27	5379	case tCASE:
dvander@27	5380	case tDEFAULT:
dvander@27	5381	error(14); /* not in switch */
dvander@27	5382	break;
dvander@27	5383	case tGOTO:
dvander@27	5384	dogoto();
dvander@27	5385	lastst=tGOTO;
dvander@27	5386	break;
dvander@27	5387	case tLABEL:
dvander@27	5388	dolabel();
dvander@27	5389	lastst=tLABEL;
dvander@27	5390	break;
dvander@27	5391	case tRETURN:
dvander@27	5392	doreturn();
dvander@27	5393	lastst=tRETURN;
dvander@27	5394	break;
dvander@27	5395	case tBREAK:
dvander@27	5396	dobreak();
dvander@27	5397	lastst=tBREAK;
dvander@27	5398	break;
dvander@27	5399	case tCONTINUE:
dvander@27	5400	docont();
dvander@27	5401	lastst=tCONTINUE;
dvander@27	5402	break;
dvander@27	5403	case tEXIT:
dvander@27	5404	doexit();
dvander@27	5405	lastst=tEXIT;
dvander@27	5406	break;
dvander@27	5407	case tASSERT:
dvander@27	5408	doassert();
dvander@27	5409	lastst=tASSERT;
dvander@27	5410	break;
dvander@27	5411	case tSLEEP:
dvander@27	5412	dosleep();
dvander@27	5413	lastst=tSLEEP;
dvander@27	5414	break;
dvander@27	5415	case tSTATE:
dvander@27	5416	dostate();
dvander@27	5417	lastst=tSTATE;
dvander@27	5418	break;
dvander@27	5419	case tCONST:
dvander@27	5420	decl_const(sLOCAL);
dvander@27	5421	break;
dvander@27	5422	case tENUM:
dvander@27	5423	decl_enum(sLOCAL);
dvander@27	5424	break;
dvander@27	5425	default: /* non-empty expression */
dvander@27	5426	sc_allowproccall=optproccall;
dvander@27	5427	lexpush(); /* analyze token later */
dvander@27	5428	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE);
dvander@27	5429	needtoken(tTERM);
dvander@27	5430	lastst=tEXPR;
dvander@27	5431	sc_allowproccall=FALSE;
dvander@27	5432	} /* switch */
dvander@27	5433	}
dvander@27	5434
faluco@62	5435	static void compound(int stmt_sameline,int starttok)
dvander@27	5436	{
dvander@27	5437	int indent=-1;
dvander@27	5438	cell save_decl=declared;
dvander@27	5439	int count_stmt=0;
dvander@27	5440	int block_start=fline; /* save line where the compound block started */
faluco@62	5441	int endtok;
dvander@27	5442
dvander@117	5443	pushstacklist();
dvander@118	5444	pushheaplist();
dvander@27	5445	/* if there is more text on this line, we should adjust the statement indent */
dvander@27	5446	if (stmt_sameline) {
dvander@27	5447	int i;
dvander@27	5448	const unsigned char *p=lptr;
dvander@27	5449	/* go back to the opening brace */
faluco@62	5450	while (*p!=starttok) {
dvander@27	5451	assert(p>pline);
dvander@27	5452	p--;
dvander@27	5453	} /* while */
faluco@62	5454	assert(p==starttok); / it should be found */
dvander@27	5455	/* go forward, skipping white-space */
dvander@27	5456	p++;
dvander@27	5457	while (p<=' ' && p!='\0')
dvander@27	5458	p++;
dvander@27	5459	assert(p!='\0'); / a token should be found */
dvander@27	5460	stmtindent=0;
dvander@27	5461	for (i=0; i<(int)(p-pline); i++)
dvander@27	5462	if (pline[i]=='\t' && sc_tabsize>0)
dvander@27	5463	stmtindent += (int)(sc_tabsize - (stmtindent+sc_tabsize) % sc_tabsize);
dvander@27	5464	else
dvander@27	5465	stmtindent++;
dvander@27	5466	} /* if */
dvander@27	5467
faluco@62	5468	endtok=(starttok=='{') ? '}' : tEND;
dvander@27	5469	nestlevel+=1; /* increase compound statement level */
faluco@62	5470	while (matchtoken(endtok)==0){/* repeat until compound statement is closed */
dvander@27	5471	if (!freading){
dvander@27	5472	error(30,block_start); /* compound block not closed at end of file */
dvander@27	5473	break;
dvander@27	5474	} else {
faluco@62	5475	if (count_stmt>0 && (lastst==tRETURN \|\| lastst==tBREAK \|\| lastst==tCONTINUE \|\| lastst==tENDLESS))
dvander@27	5476	error(225); /* unreachable code */
dvander@27	5477	statement(&indent,TRUE); /* do a statement */
dvander@27	5478	count_stmt++;
dvander@27	5479	} /* if */
dvander@27	5480	} /* while */
dvander@27	5481	if (lastst!=tRETURN)
dvander@27	5482	destructsymbols(&loctab,nestlevel);
dvander@117	5483	if (lastst!=tRETURN && lastst!=tGOTO) {
dvander@118	5484	popheaplist();
dvander@117	5485	popstacklist();
dvander@117	5486	}
dvander@27	5487	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	5488	declared=save_decl;
dvander@27	5489	delete_symbols(&loctab,nestlevel,FALSE,TRUE); /* erase local symbols, but
dvander@27	5490	* retain block local labels
dvander@27	5491	* (within the function) */
dvander@27	5492	nestlevel-=1; /* decrease compound statement level */
dvander@27	5493	}
dvander@27	5494
dvander@27	5495	/* doexpr
dvander@27	5496	*
dvander@27	5497	* Global references: stgidx (referred to only)
dvander@27	5498	*/
dvander@27	5499	static int doexpr(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@27	5500	int tag,symbol *symptr,int chkfuncresult)
dvander@27	5501	{
dvander@152	5502	return doexpr2(comma,chkeffect,allowarray,mark_endexpr,tag,symptr,chkfuncresult,NULL);
dvander@152	5503	}
dvander@152	5504
dvander@152	5505	/* doexpr2
dvander@152	5506	*
dvander@152	5507	* Global references: stgidx (referred to only)
dvander@152	5508	*/
dvander@152	5509	static int doexpr2(int comma,int chkeffect,int allowarray,int mark_endexpr,
dvander@152	5510	int tag,symbol symptr,int chkfuncresult,value lval)
dvander@152	5511	{
dvander@27	5512	int index,ident;
dvander@27	5513	int localstaging=FALSE;
dvander@27	5514	cell val;
dvander@27	5515
dvander@27	5516	if (!staging) {
dvander@27	5517	stgset(TRUE); /* start stage-buffering */
dvander@27	5518	localstaging=TRUE;
dvander@27	5519	assert(stgidx==0);
dvander@27	5520	} /* if */
dvander@27	5521	index=stgidx;
dvander@27	5522	errorset(sEXPRMARK,0);
dvander@27	5523	do {
dvander@27	5524	/* on second round through, mark the end of the previous expression */
dvander@27	5525	if (index!=stgidx)
dvander@27	5526	markexpr(sEXPR,NULL,0);
dvander@27	5527	sideeffect=FALSE;
dvander@152	5528	ident=expression(&val,tag,symptr,chkfuncresult,lval);
dvander@27	5529	if (!allowarray && (ident==iARRAY \|\| ident==iREFARRAY))
dvander@27	5530	error(33,"-unknown-"); /* array must be indexed */
dvander@27	5531	if (chkeffect && !sideeffect)
dvander@27	5532	error(215); /* expression has no effect */
dvander@27	5533	sc_allowproccall=FALSE; /* cannot use "procedure call" syntax anymore */
dvander@27	5534	} while (comma && matchtoken(',')); /* more? */
dvander@27	5535	if (mark_endexpr)
dvander@27	5536	markexpr(sEXPR,NULL,0); /* optionally, mark the end of the expression */
dvander@27	5537	errorset(sEXPRRELEASE,0);
dvander@27	5538	if (localstaging) {
dvander@27	5539	stgout(index);
dvander@27	5540	stgset(FALSE); /* stop staging */
dvander@27	5541	} /* if */
dvander@27	5542	return ident;
dvander@27	5543	}
dvander@27	5544
dvander@27	5545	/* constexpr
dvander@27	5546	*/
dvander@27	5547	SC_FUNC int constexpr(cell val,int tag,symbol **symptr)
dvander@27	5548	{
dvander@27	5549	int ident,index;
dvander@27	5550	cell cidx;
dvander@27	5551
dvander@27	5552	stgset(TRUE); /* start stage-buffering */
dvander@27	5553	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	5554	errorset(sEXPRMARK,0);
dvander@152	5555	ident=expression(val,tag,symptr,FALSE,NULL);
dvander@27	5556	stgdel(index,cidx); /* scratch generated code */
dvander@27	5557	stgset(FALSE); /* stop stage-buffering */
dvander@27	5558	if (ident!=iCONSTEXPR) {
dvander@27	5559	error(8); /* must be constant expression */
dvander@27	5560	if (val!=NULL)
dvander@27	5561	*val=0;
dvander@27	5562	if (tag!=NULL)
dvander@27	5563	*tag=0;
dvander@27	5564	if (symptr!=NULL)
dvander@27	5565	*symptr=NULL;
dvander@27	5566	} /* if */
dvander@27	5567	errorset(sEXPRRELEASE,0);
dvander@27	5568	return (ident==iCONSTEXPR);
dvander@27	5569	}
dvander@27	5570
dvander@27	5571	/* test
dvander@27	5572	*
dvander@27	5573	* In the case a "simple assignment" operator ("=") is used within a test,
dvander@27	5574	* the warning "possibly unintended assignment" is displayed. This routine
dvander@27	5575	* sets the global variable "sc_intest" to true, it is restored upon termination.
dvander@27	5576	* In the case the assignment was intended, use parantheses around the
dvander@27	5577	* expression to avoid the warning; primary() sets "sc_intest" to 0.
dvander@27	5578	*
dvander@27	5579	* Global references: sc_intest (altered, but restored upon termination)
dvander@27	5580	*/
faluco@62	5581	static int test(int label,int parens,int invert)
dvander@27	5582	{
dvander@27	5583	int index,tok;
dvander@27	5584	cell cidx;
dvander@27	5585	int ident,tag;
faluco@62	5586	int endtok;
dvander@27	5587	cell constval;
dvander@27	5588	symbol *sym;
dvander@27	5589	int localstaging=FALSE;
dvander@27	5590
dvander@27	5591	if (!staging) {
dvander@27	5592	stgset(TRUE); /* start staging */
dvander@27	5593	localstaging=TRUE;
dvander@27	5594	#if !defined NDEBUG
dvander@27	5595	stgget(&index,&cidx); /* should start at zero if started locally */
dvander@27	5596	assert(index==0);
dvander@27	5597	#endif
dvander@27	5598	} /* if */
dvander@27	5599
dvander@27	5600	PUSHSTK_I(sc_intest);
dvander@27	5601	sc_intest=TRUE;
faluco@62	5602	endtok=0;
faluco@62	5603	if (parens!=TEST_PLAIN) {
faluco@62	5604	if (matchtoken('('))
faluco@62	5605	endtok=')';
faluco@62	5606	else if (parens==TEST_THEN)
faluco@62	5607	endtok=tTHEN;
faluco@62	5608	else if (parens==TEST_DO)
faluco@62	5609	endtok=tDO;
faluco@62	5610	} /* if */
dvander@27	5611	do {
dvander@27	5612	stgget(&index,&cidx); /* mark position (of last expression) in
dvander@27	5613	* code generator */
dvander@152	5614	ident=expression(&constval,&tag,&sym,TRUE,NULL);
dvander@27	5615	tok=matchtoken(',');
dvander@27	5616	if (tok)
dvander@27	5617	markexpr(sEXPR,NULL,0);
dvander@27	5618	} while (tok); /* do */
faluco@62	5619	if (endtok!=0)
faluco@62	5620	needtoken(endtok);
dvander@27	5621	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	5622	char *ptr=(sym->name!=NULL) ? sym->name : "-unknown-";
dvander@27	5623	error(33,ptr); /* array must be indexed */
dvander@27	5624	} /* if */
dvander@27	5625	if (ident==iCONSTEXPR) { /* constant expression */
faluco@62	5626	int testtype=0;
dvander@27	5627	sc_intest=(short)POPSTK_I();/* restore stack */
dvander@27	5628	stgdel(index,cidx);
dvander@27	5629	if (constval) { /* code always executed */
dvander@27	5630	error(206); /* redundant test: always non-zero */
faluco@62	5631	testtype=tENDLESS;
dvander@27	5632	} else {
dvander@27	5633	error(205); /* redundant code: never executed */
dvander@27	5634	jumplabel(label);
dvander@27	5635	} /* if */
dvander@27	5636	if (localstaging) {
dvander@27	5637	stgout(0); /* write "jumplabel" code */
dvander@27	5638	stgset(FALSE); /* stop staging */
dvander@27	5639	} /* if */
faluco@62	5640	return testtype;
dvander@27	5641	} /* if */
dvander@27	5642	if (tag!=0 && tag!=pc_addtag("bool"))
dvander@27	5643	if (check_userop(lneg,tag,0,1,NULL,&tag))
dvander@27	5644	invert= !invert; /* user-defined ! operator inverted result */
dvander@27	5645	if (invert)
dvander@27	5646	jmp_ne0(label); /* jump to label if true (different from 0) */
dvander@27	5647	else
dvander@27	5648	jmp_eq0(label); /* jump to label if false (equal to 0) */
dvander@27	5649	markexpr(sEXPR,NULL,0); /* end expression (give optimizer a chance) */
dvander@27	5650	sc_intest=(short)POPSTK_I(); /* double typecast to avoid warning with Microsoft C */
dvander@27	5651	if (localstaging) {
dvander@27	5652	stgout(0); /* output queue from the very beginning (see
dvander@27	5653	* assert() when localstaging is set to TRUE) */
dvander@27	5654	stgset(FALSE); /* stop staging */
dvander@27	5655	} /* if */
faluco@62	5656	return 0;
dvander@27	5657	}
dvander@27	5658
faluco@62	5659	static int doif(void)
dvander@27	5660	{
dvander@27	5661	int flab1,flab2;
dvander@27	5662	int ifindent;
faluco@62	5663	int lastst_true;
dvander@27	5664
dvander@27	5665	ifindent=stmtindent; /* save the indent of the "if" instruction */
dvander@27	5666	flab1=getlabel(); /* get label number for false branch */
faluco@62	5667	test(flab1,TEST_THEN,FALSE); /* get expression, branch to flab1 if false */
dvander@27	5668	statement(NULL,FALSE); /* if true, do a statement */
faluco@62	5669	if (!matchtoken(tELSE)) { /* if...else ? */
dvander@27	5670	setlabel(flab1); /* no, simple if..., print false label */
dvander@27	5671	} else {
faluco@62	5672	lastst_true=lastst; /* save last statement of the "true" branch */
dvander@27	5673	/* to avoid the "dangling else" error, we want a warning if the "else"
dvander@27	5674	* has a lower indent than the matching "if" */
dvander@27	5675	if (stmtindent<ifindent && sc_tabsize>0)
dvander@27	5676	error(217); /* loose indentation */
dvander@27	5677	flab2=getlabel();
dvander@27	5678	if ((lastst!=tRETURN) && (lastst!=tGOTO))
faluco@62	5679	jumplabel(flab2); /* "true" branch jumps around "else" clause, unless the "true" branch statement already jumped */
dvander@27	5680	setlabel(flab1); /* print false label */
dvander@27	5681	statement(NULL,FALSE); /* do "else" clause */
dvander@27	5682	setlabel(flab2); /* print true label */
faluco@62	5683	/* if both the "true" branch and the "false" branch ended with the same
faluco@62	5684	* kind of statement, set the last statement id to that kind, rather than
faluco@62	5685	* to the generic tIF; this allows for better "unreachable code" checking
faluco@62	5686	*/
faluco@62	5687	if (lastst==lastst_true)
faluco@62	5688	return lastst;
faluco@62	5689	} /* if */
faluco@62	5690	return tIF;
dvander@27	5691	}
dvander@27	5692
faluco@62	5693	static int dowhile(void)
dvander@27	5694	{
dvander@27	5695	int wq[wqSIZE]; /* allocate local queue */
faluco@62	5696	int save_endlessloop,retcode;
faluco@62	5697
faluco@62	5698	save_endlessloop=endlessloop;
dvander@27	5699	addwhile(wq); /* add entry to queue for "break" */
dvander@27	5700	setlabel(wq[wqLOOP]); /* loop label */
dvander@27	5701	/* The debugger uses the "break" opcode to be able to "break" out of
dvander@27	5702	* a loop. To make sure that each loop has a break opcode, even for the
dvander@27	5703	* tiniest loop, set it below the top of the loop
dvander@27	5704	*/
dvander@27	5705	setline(TRUE);
faluco@62	5706	endlessloop=test(wq[wqEXIT],TEST_DO,FALSE);/* branch to wq[wqEXIT] if false */
dvander@27	5707	statement(NULL,FALSE); /* if so, do a statement */
dvander@27	5708	jumplabel(wq[wqLOOP]); /* and loop to "while" start */
dvander@27	5709	setlabel(wq[wqEXIT]); /* exit label */
dvander@27	5710	delwhile(); /* delete queue entry */
faluco@62	5711
faluco@62	5712	retcode=endlessloop ? tENDLESS : tWHILE;
faluco@62	5713	endlessloop=save_endlessloop;
faluco@62	5714	return retcode;
dvander@27	5715	}
dvander@27	5716
dvander@27	5717	/*
dvander@27	5718	* Note that "continue" will in this case not jump to the top of the loop, but
dvander@27	5719	* to the end: just before the TRUE-or-FALSE testing code.
dvander@27	5720	*/
faluco@62	5721	static int dodo(void)
dvander@27	5722	{
dvander@27	5723	int wq[wqSIZE],top;
faluco@62	5724	int save_endlessloop,retcode;
faluco@62	5725
faluco@62	5726	save_endlessloop=endlessloop;
dvander@27	5727	addwhile(wq); /* see "dowhile" for more info */
dvander@27	5728	top=getlabel(); /* make a label first */
dvander@27	5729	setlabel(top); /* loop label */
dvander@27	5730	statement(NULL,FALSE);
dvander@27	5731	needtoken(tWHILE);
dvander@27	5732	setlabel(wq[wqLOOP]); /* "continue" always jumps to WQLOOP. */
dvander@27	5733	setline(TRUE);
faluco@62	5734	endlessloop=test(wq[wqEXIT],TEST_OPT,FALSE);
dvander@27	5735	jumplabel(top);
dvander@27	5736	setlabel(wq[wqEXIT]);
dvander@27	5737	delwhile();
dvander@27	5738	needtoken(tTERM);
faluco@62	5739
faluco@62	5740	retcode=endlessloop ? tENDLESS : tDO;
faluco@62	5741	endlessloop=save_endlessloop;
faluco@62	5742	return retcode;
dvander@27	5743	}
dvander@27	5744
faluco@62	5745	static int dofor(void)
dvander@27	5746	{
dvander@27	5747	int wq[wqSIZE],skiplab;
dvander@27	5748	cell save_decl;
faluco@62	5749	int save_nestlevel,save_endlessloop;
faluco@62	5750	int index,endtok;
dvander@27	5751	int *ptr;
dvander@27	5752
dvander@27	5753	save_decl=declared;
dvander@27	5754	save_nestlevel=nestlevel;
faluco@62	5755	save_endlessloop=endlessloop;
dvander@117	5756	pushstacklist();
dvander@117	5757
dvander@27	5758	addwhile(wq);
dvander@27	5759	skiplab=getlabel();
faluco@62	5760	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	5761	if (matchtoken(';')==0) {
dvander@27	5762	/* new variable declarations are allowed here */
dvander@27	5763	if (matchtoken(tNEW)) {
dvander@27	5764	/* The variable in expr1 of the for loop is at a
dvander@27	5765	* 'compound statement' level of it own.
dvander@27	5766	*/
dvander@27	5767	nestlevel++;
faluco@63	5768	autozero=1;
dvander@27	5769	declloc(FALSE); /* declare local variable */
dvander@27	5770	} else {
dvander@27	5771	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 1 */
dvander@27	5772	needtoken(';');
dvander@27	5773	} /* if */
dvander@27	5774	} /* if */
dvander@27	5775	/* Adjust the "declared" field in the "while queue", in case that
dvander@27	5776	* local variables were declared in the first expression of the
dvander@27	5777	* "for" loop. These are deleted in separately, so a "break" or a "continue"
dvander@27	5778	* must ignore these fields.
dvander@27	5779	*/
dvander@27	5780	ptr=readwhile();
dvander@27	5781	assert(ptr!=NULL);
dvander@117	5782	/*ptr[wqBRK]=(int)declared;
dvander@117	5783	*ptr[wqCONT]=(int)declared;
dvander@117	5784	*/
dvander@117	5785	ptr[wqBRK] = stackusage->list_id;
dvander@117	5786	ptr[wqCONT] = stackusage->list_id;
dvander@27	5787	jumplabel(skiplab); /* skip expression 3 1st time */
dvander@27	5788	setlabel(wq[wqLOOP]); /* "continue" goes to this label: expr3 */
dvander@27	5789	setline(TRUE);
dvander@27	5790	/* Expressions 2 and 3 are reversed in the generated code: expression 3
dvander@27	5791	* precedes expression 2. When parsing, the code is buffered and marks for
dvander@27	5792	* the start of each expression are insterted in the buffer.
dvander@27	5793	*/
dvander@27	5794	assert(!staging);
dvander@27	5795	stgset(TRUE); /* start staging */
dvander@27	5796	assert(stgidx==0);
dvander@27	5797	index=stgidx;
dvander@27	5798	stgmark(sSTARTREORDER);
dvander@27	5799	stgmark((char)(sEXPRSTART+0)); /* mark start of 2nd expression in stage */
dvander@27	5800	setlabel(skiplab); /* jump to this point after 1st expression */
faluco@62	5801	if (matchtoken(';')) {
faluco@62	5802	endlessloop=1;
faluco@62	5803	} else {
faluco@62	5804	endlessloop=test(wq[wqEXIT],TEST_PLAIN,FALSE);/* expression 2 (jump to wq[wqEXIT] if false) */
dvander@27	5805	needtoken(';');
dvander@27	5806	} /* if */
dvander@27	5807	stgmark((char)(sEXPRSTART+1)); /* mark start of 3th expression in stage */
faluco@62	5808	if (!matchtoken(endtok)) {
dvander@27	5809	doexpr(TRUE,TRUE,TRUE,TRUE,NULL,NULL,FALSE); /* expression 3 */
faluco@62	5810	needtoken(endtok);
dvander@27	5811	} /* if */
dvander@27	5812	stgmark(sENDREORDER); /* mark end of reversed evaluation */
dvander@27	5813	stgout(index);
dvander@27	5814	stgset(FALSE); /* stop staging */
dvander@27	5815	statement(NULL,FALSE);
dvander@27	5816	jumplabel(wq[wqLOOP]);
dvander@27	5817	setlabel(wq[wqEXIT]);
dvander@27	5818	delwhile();
dvander@27	5819
dvander@27	5820	assert(nestlevel>=save_nestlevel);
dvander@27	5821	if (nestlevel>save_nestlevel) {
dvander@27	5822	/* Clean up the space and the symbol table for the local
dvander@27	5823	* variable in "expr1".
dvander@27	5824	*/
dvander@27	5825	destructsymbols(&loctab,nestlevel);
dvander@117	5826	popstacklist();
dvander@27	5827	testsymbols(&loctab,nestlevel,FALSE,TRUE); /* look for unused block locals */
dvander@27	5828	declared=save_decl;
dvander@27	5829	delete_symbols(&loctab,nestlevel,FALSE,TRUE);
dvander@27	5830	nestlevel=save_nestlevel; /* reset 'compound statement' nesting level */
dvander@27	5831	} /* if */
faluco@62	5832
faluco@62	5833	index=endlessloop ? tENDLESS : tFOR;
faluco@62	5834	endlessloop=save_endlessloop;
faluco@62	5835	return index;
dvander@27	5836	}
dvander@27	5837
dvander@27	5838	/* The switch statement is incompatible with its C sibling:
dvander@27	5839	* 1. the cases are not drop through
dvander@27	5840	* 2. only one instruction may appear below each case, use a compound
dvander@27	5841	* instruction to execute multiple instructions
dvander@27	5842	* 3. the "case" keyword accepts a comma separated list of values to
dvander@117	5843	* match
dvander@27	5844	*
dvander@27	5845	* SWITCH param
dvander@27	5846	* PRI = expression result
dvander@27	5847	* param = table offset (code segment)
dvander@27	5848	*
dvander@27	5849	*/
dvander@27	5850	static void doswitch(void)
dvander@27	5851	{
dvander@27	5852	int lbl_table,lbl_exit,lbl_case;
faluco@62	5853	int swdefault,casecount;
faluco@62	5854	int tok,endtok;
dvander@27	5855	cell val;
dvander@27	5856	char *str;
dvander@27	5857	constvalue caselist = { NULL, "", 0, 0}; /* case list starts empty */
dvander@27	5858	constvalue cse,csp;
dvander@27	5859	char labelname[sNAMEMAX+1];
dvander@27	5860
faluco@62	5861	endtok= matchtoken('(') ? ')' : tDO;
dvander@27	5862	doexpr(TRUE,FALSE,FALSE,FALSE,NULL,NULL,TRUE);/* evaluate switch expression */
faluco@62	5863	needtoken(endtok);
dvander@27	5864	/* generate the code for the switch statement, the label is the address
dvander@27	5865	* of the case table (to be generated later).
dvander@27	5866	*/
dvander@27	5867	lbl_table=getlabel();
dvander@27	5868	lbl_case=0; /* just to avoid a compiler warning */
dvander@27	5869	ffswitch(lbl_table);
dvander@27	5870
faluco@62	5871	if (matchtoken(tBEGIN)) {
faluco@62	5872	endtok=tEND;
faluco@62	5873	} else {
faluco@62	5874	endtok='}';
faluco@62	5875	needtoken('{');
faluco@62	5876	} /* if */
dvander@27	5877	lbl_exit=getlabel(); /* get label number for jumping out of switch */
dvander@27	5878	swdefault=FALSE;
dvander@27	5879	casecount=0;
dvander@27	5880	do {
dvander@27	5881	tok=lex(&val,&str); /* read in (new) token */
dvander@27	5882	switch (tok) {
dvander@27	5883	case tCASE:
dvander@27	5884	if (swdefault!=FALSE)
dvander@27	5885	error(15); /* "default" case must be last in switch statement */
dvander@27	5886	lbl_case=getlabel();
dvander@27	5887	PUSHSTK_I(sc_allowtags);
dvander@27	5888	sc_allowtags=FALSE; /* do not allow tagnames here */
dvander@27	5889	do {
dvander@27	5890	casecount++;
dvander@27	5891
dvander@27	5892	/* ??? enforce/document that, in a switch, a statement cannot start
dvander@27	5893	* with a label. Then, you can search for:
dvander@27	5894	* * the first semicolon (marks the end of a statement)
dvander@27	5895	* * an opening brace (marks the start of a compound statement)
dvander@27	5896	* and search for the right-most colon before that statement
dvander@27	5897	* Now, by replacing the ':' by a special COLON token, you can
dvander@27	5898	* parse all expressions until that special token.
dvander@27	5899	*/
dvander@27	5900
dvander@27	5901	constexpr(&val,NULL,NULL);
dvander@27	5902	/* Search the insertion point (the table is kept in sorted order, so
dvander@27	5903	* that advanced abstract machines can sift the case table with a
dvander@27	5904	* binary search). Check for duplicate case values at the same time.
dvander@27	5905	*/
dvander@27	5906	for (csp=&caselist, cse=caselist.next;
dvander@27	5907	cse!=NULL && cse->value<val;
dvander@27	5908	csp=cse, cse=cse->next)
dvander@27	5909	/* nothing */;
dvander@27	5910	if (cse!=NULL && cse->value==val)
dvander@27	5911	error(40,val); /* duplicate "case" label */
dvander@27	5912	/* Since the label is stored as a string in the "constvalue", the
dvander@27	5913	* size of an identifier must be at least 8, as there are 8
dvander@27	5914	* hexadecimal digits in a 32-bit number.
dvander@27	5915	*/
dvander@27	5916	#if sNAMEMAX < 8
dvander@27	5917	#error Length of identifier (sNAMEMAX) too small.
dvander@27	5918	#endif
dvander@27	5919	assert(csp!=NULL);
dvander@27	5920	assert(csp->next==cse);
dvander@27	5921	insert_constval(csp,cse,itoh(lbl_case),val,0);
dvander@27	5922	if (matchtoken(tDBLDOT)) {
dvander@101	5923	error(1, ":", "..");
dvander@27	5924	} /* if */
dvander@27	5925	} while (matchtoken(','));
dvander@27	5926	needtoken(':'); /* ':' ends the case */
dvander@27	5927	sc_allowtags=(short)POPSTK_I(); /* reset */
dvander@27	5928	setlabel(lbl_case);
dvander@27	5929	statement(NULL,FALSE);
dvander@27	5930	jumplabel(lbl_exit);
dvander@27	5931	break;
dvander@27	5932	case tDEFAULT:
dvander@27	5933	if (swdefault!=FALSE)
dvander@27	5934	error(16); /* multiple defaults in switch */
dvander@27	5935	lbl_case=getlabel();
dvander@27	5936	setlabel(lbl_case);
dvander@27	5937	needtoken(':');
dvander@27	5938	swdefault=TRUE;
dvander@27	5939	statement(NULL,FALSE);
dvander@27	5940	/* Jump to lbl_exit, even thouh this is the last clause in the
dvander@27	5941	* switch, because the jump table is generated between the last
dvander@27	5942	* clause of the switch and the exit label.
dvander@27	5943	*/
dvander@27	5944	jumplabel(lbl_exit);
dvander@27	5945	break;
dvander@27	5946	default:
faluco@62	5947	if (tok!=endtok) {
faluco@62	5948	error(2);
faluco@62	5949	indent_nowarn=TRUE; /* disable this check */
faluco@62	5950	tok=endtok; /* break out of the loop after an error */
faluco@62	5951	} /* if */
dvander@27	5952	} /* switch */
faluco@62	5953	} while (tok!=endtok);
dvander@27	5954
dvander@27	5955	#if !defined NDEBUG
dvander@27	5956	/* verify that the case table is sorted (unfortunatly, duplicates can
dvander@27	5957	* occur; there really shouldn't be duplicate cases, but the compiler
dvander@27	5958	* may not crash or drop into an assertion for a user error). */
dvander@27	5959	for (cse=caselist.next; cse!=NULL && cse->next!=NULL; cse=cse->next)
dvander@27	5960	assert(cse->value <= cse->next->value);
dvander@27	5961	#endif
dvander@27	5962	/* generate the table here, before lbl_exit (general jump target) */
dvander@27	5963	setlabel(lbl_table);
dvander@27	5964	assert(swdefault==FALSE \|\| swdefault==TRUE);
dvander@27	5965	if (swdefault==FALSE) {
dvander@27	5966	/* store lbl_exit as the "none-matched" label in the switch table */
dvander@27	5967	strcpy(labelname,itoh(lbl_exit));
dvander@27	5968	} else {
dvander@27	5969	/* lbl_case holds the label of the "default" clause */
dvander@27	5970	strcpy(labelname,itoh(lbl_case));
dvander@27	5971	} /* if */
dvander@27	5972	ffcase(casecount,labelname,TRUE);
dvander@27	5973	/* generate the rest of the table */
dvander@27	5974	for (cse=caselist.next; cse!=NULL; cse=cse->next)
dvander@27	5975	ffcase(cse->value,cse->name,FALSE);
dvander@27	5976
dvander@27	5977	setlabel(lbl_exit);
dvander@27	5978	delete_consttable(&caselist); /* clear list of case labels */
dvander@27	5979	}
dvander@27	5980
dvander@27	5981	static void doassert(void)
dvander@27	5982	{
dvander@27	5983	int flab1,index;
dvander@27	5984	cell cidx;
dvander@27	5985
dvander@27	5986	if ((sc_debug & sCHKBOUNDS)!=0) {
dvander@27	5987	flab1=getlabel(); /* get label number for "OK" branch */
faluco@62	5988	test(flab1,TEST_PLAIN,TRUE);/* get expression and branch to flab1 if true */
dvander@27	5989	insert_dbgline(fline); /* make sure we can find the correct line number */
dvander@27	5990	ffabort(xASSERTION);
dvander@27	5991	setlabel(flab1);
dvander@27	5992	} else {
dvander@27	5993	stgset(TRUE); /* start staging */
dvander@27	5994	stgget(&index,&cidx); /* mark position in code generator */
dvander@27	5995	do {
dvander@152	5996	expression(NULL,NULL,NULL,FALSE,NULL);
dvander@27	5997	stgdel(index,cidx); /* just scrap the code */
dvander@27	5998	} while (matchtoken(','));
dvander@27	5999	stgset(FALSE); /* stop staging */
dvander@27	6000	} /* if */
dvander@27	6001	needtoken(tTERM);
dvander@27	6002	}
dvander@27	6003
dvander@27	6004	static void dogoto(void)
dvander@27	6005	{
dvander@27	6006	char *st;
dvander@27	6007	cell val;
dvander@27	6008	symbol *sym;
dvander@27	6009
faluco@62	6010	/* if we were inside an endless loop, assume that we jump out of it */
faluco@62	6011	endlessloop=0;
faluco@62	6012
dvander@27	6013	if (lex(&val,&st)==tSYMBOL) {
dvander@27	6014	sym=fetchlab(st);
dvander@27	6015	jumplabel((int)sym->addr);
dvander@27	6016	sym->usage\|=uREAD; /* set "uREAD" bit */
dvander@27	6017	// ??? if the label is defined (check sym->usage & uDEFINE), check
dvander@27	6018	// sym->compound (nesting level of the label) against nestlevel;
dvander@27	6019	// if sym->compound < nestlevel, call the destructor operator
dvander@27	6020	} else {
dvander@27	6021	error(20,st); /* illegal symbol name */
dvander@27	6022	} /* if */
dvander@27	6023	needtoken(tTERM);
dvander@27	6024	}
dvander@27	6025
dvander@27	6026	static void dolabel(void)
dvander@27	6027	{
dvander@27	6028	char *st;
dvander@27	6029	cell val;
dvander@27	6030	symbol *sym;
dvander@27	6031
dvander@27	6032	tokeninfo(&val,&st); /* retrieve label name again */
dvander@27	6033	if (find_constval(&tagname_tab,st,0)!=NULL)
dvander@27	6034	error(221,st); /* label name shadows tagname */
dvander@27	6035	sym=fetchlab(st);
dvander@27	6036	setlabel((int)sym->addr);
dvander@27	6037	/* since one can jump around variable declarations or out of compound
dvander@27	6038	* blocks, the stack must be manually adjusted
dvander@27	6039	*/
dvander@117	6040	//:TODO: This is actually generated, egads!
dvander@117	6041	//We have to support this and LCTRL/SCTRL
dvander@27	6042	setstk(-declared*sizeof(cell));
dvander@27	6043	sym->usage\|=uDEFINE; /* label is now defined */
dvander@27	6044	}
dvander@27	6045
dvander@27	6046	/* fetchlab
dvander@27	6047	*
dvander@27	6048	* Finds a label from the (local) symbol table or adds one to it.
dvander@27	6049	* Labels are local in scope.
dvander@27	6050	*
dvander@27	6051	* Note: The "_usage" bit is set to zero. The routines that call "fetchlab()"
dvander@27	6052	* must set this bit accordingly.
dvander@27	6053	*/
dvander@27	6054	static symbol fetchlab(char name)
dvander@27	6055	{
dvander@27	6056	symbol *sym;
dvander@27	6057
dvander@27	6058	sym=findloc(name); /* labels are local in scope */
dvander@27	6059	if (sym){
dvander@27	6060	if (sym->ident!=iLABEL)
dvander@27	6061	error(19,sym->name); /* not a label: ... */
dvander@27	6062	} else {
dvander@27	6063	sym=addsym(name,getlabel(),iLABEL,sLOCAL,0,0);
dvander@27	6064	assert(sym!=NULL); /* fatal error 103 must be given on error */
dvander@27	6065	sym->x.declared=(int)declared;
dvander@27	6066	sym->compound=nestlevel;
dvander@27	6067	} /* if */
dvander@27	6068	return sym;
dvander@27	6069	}
dvander@27	6070
dvander@27	6071	/* doreturn
dvander@27	6072	*
dvander@27	6073	* Global references: rettype (altered)
dvander@27	6074	*/
dvander@27	6075	static void doreturn(void)
dvander@27	6076	{
dvander@27	6077	int tag,ident;
dvander@27	6078	int level;
dvander@27	6079	symbol sym,sub;
dvander@27	6080
dvander@27	6081	if (!matchtoken(tTERM)) {
dvander@27	6082	/* "return <value>" */
dvander@27	6083	if ((rettype & uRETNONE)!=0)
dvander@27	6084	error(78); /* mix "return;" and "return value;" */
dvander@103	6085	ident=doexpr(TRUE,FALSE,TRUE,FALSE,&tag,&sym,TRUE);
dvander@27	6086	needtoken(tTERM);
dvander@27	6087	/* see if this function already has a sub type (an array attached) */
dvander@27	6088	sub=finddepend(curfunc);
dvander@27	6089	assert(sub==NULL \|\| sub->ident==iREFARRAY);
dvander@27	6090	if ((rettype & uRETVALUE)!=0) {
dvander@27	6091	int retarray=(ident==iARRAY \|\| ident==iREFARRAY);
dvander@27	6092	/* there was an earlier "return" statement in this function */
dvander@27	6093	if (sub==NULL && retarray \|\| sub!=NULL && !retarray)
dvander@27	6094	error(79); /* mixing "return array;" and "return value;" */
dvander@27	6095	if (retarray && (curfunc->usage & uPUBLIC)!=0)
dvander@27	6096	error(90,curfunc->name); /* public function may not return array */
dvander@27	6097	} /* if */
dvander@27	6098	rettype\|=uRETVALUE; /* function returns a value */
dvander@27	6099	/* check tagname with function tagname */
dvander@27	6100	assert(curfunc!=NULL);
dvander@151	6101	if (!matchtag_string(ident, tag) && !matchtag(curfunc->tag,tag,TRUE))
dvander@27	6102	error(213); /* tagname mismatch */
dvander@27	6103	if (ident==iARRAY \|\| ident==iREFARRAY) {
dvander@27	6104	int dim[sDIMEN_MAX],numdim;
dvander@27	6105	cell arraysize;
dvander@27	6106	assert(sym!=NULL);
dvander@27	6107	if (sub!=NULL) {
dvander@27	6108	assert(sub->ident==iREFARRAY);
dvander@27	6109	/* this function has an array attached already; check that the current
dvander@27	6110	* "return" statement returns exactly the same array
dvander@27	6111	*/
dvander@27	6112	level=sym->dim.array.level;
dvander@27	6113	if (sub->dim.array.level!=level) {
dvander@27	6114	error(48); /* array dimensions must match */
dvander@27	6115	} else {
dvander@27	6116	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6117	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6118	if (sym->dim.array.length!=dim[numdim])
dvander@27	6119	error(47); /* array sizes must match */
dvander@27	6120	if (numdim<level) {
dvander@27	6121	sym=finddepend(sym);
dvander@27	6122	sub=finddepend(sub);
dvander@27	6123	assert(sym!=NULL && sub!=NULL);
dvander@27	6124	/* ^^^ both arrays have the same dimensions (this was checked
dvander@27	6125	* earlier) so the dependend should always be found
dvander@27	6126	*/
dvander@27	6127	} /* if */
dvander@27	6128	} /* for */
dvander@27	6129	} /* if */
dvander@27	6130	} else {
dvander@27	6131	int idxtag[sDIMEN_MAX];
dvander@27	6132	int argcount;
dvander@27	6133	/* this function does not yet have an array attached; clone the
dvander@27	6134	* returned symbol beneath the current function
dvander@27	6135	*/
dvander@27	6136	sub=sym;
dvander@27	6137	assert(sub!=NULL);
dvander@27	6138	level=sub->dim.array.level;
dvander@27	6139	for (numdim=0; numdim<=level; numdim++) {
dvander@27	6140	dim[numdim]=(int)sub->dim.array.length;
dvander@27	6141	idxtag[numdim]=sub->x.tags.index;
dvander@27	6142	if (numdim<level) {
dvander@27	6143	sub=finddepend(sub);
dvander@27	6144	assert(sub!=NULL);
dvander@27	6145	} /* if */
dvander@27	6146	/* check that all dimensions are known */
dvander@27	6147	if (dim[numdim]<=0)
dvander@27	6148	error(46,sym->name);
dvander@27	6149	} /* for */
dvander@27	6150	/* the address of the array is stored in a hidden parameter; the address
dvander@27	6151	* of this parameter is 1 + the number of parameters (times the size of
dvander@27	6152	* a cell) + the size of the stack frame and the return address
dvander@27	6153	* base + 0*sizeof(cell) == previous "base"
dvander@27	6154	* base + 1*sizeof(cell) == function return address
dvander@27	6155	* base + 2*sizeof(cell) == number of arguments
dvander@27	6156	* base + 3*sizeof(cell) == first argument of the function
dvander@27	6157	* ...
dvander@27	6158	* base + ((n-1)+3)*sizeof(cell) == last argument of the function
dvander@27	6159	* base + (n+3)*sizeof(cell) == hidden parameter with array address
dvander@27	6160	*/
dvander@27	6161	assert(curfunc!=NULL);
dvander@27	6162	assert(curfunc->dim.arglist!=NULL);
dvander@27	6163	for (argcount=0; curfunc->dim.arglist[argcount].ident!=0; argcount++)
dvander@27	6164	/* nothing */;
dvander@27	6165	sub=addvariable(curfunc->name,(argcount+3)*sizeof(cell),iREFARRAY,sGLOBAL,curfunc->tag,dim,numdim,idxtag);
dvander@27	6166	sub->parent=curfunc;
dvander@27	6167	} /* if */
dvander@27	6168	/* get the hidden parameter, copy the array (the array is on the heap;
dvander@27	6169	* it stays on the heap for the moment, and it is removed -usually- at
dvander@27	6170	* the end of the expression/statement, see expression() in SC3.C)
dvander@27	6171	*/
dvander@27	6172	address(sub,sALT); /* ALT = destination */
dvander@27	6173	arraysize=calc_arraysize(dim,numdim,0);
dvander@27	6174	memcopy(arraysizesizeof(cell)); / source already in PRI */
dvander@27	6175	/* moveto1(); is not necessary, callfunction() does a popreg() */
dvander@27	6176	} /* if */
dvander@27	6177	} else {
dvander@27	6178	/* this return statement contains no expression */
dvander@27	6179	ldconst(0,sPRI);
dvander@27	6180	if ((rettype & uRETVALUE)!=0) {
dvander@27	6181	char symname[2sNAMEMAX+16]; / allow space for user defined operators */
dvander@27	6182	assert(curfunc!=NULL);
dvander@27	6183	funcdisplayname(symname,curfunc->name);
dvander@27	6184	error(209,symname); /* function should return a value */
dvander@27	6185	} /* if */
dvander@27	6186	rettype\|=uRETNONE; /* function does not return anything */
dvander@27	6187	} /* if */
dvander@27	6188	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@118	6189	genheapfree(-1);
dvander@117	6190	genstackfree(-1); /* free everything on the stack */
dvander@27	6191	ffret(strcmp(curfunc->name,uENTRYFUNC)!=0);
dvander@27	6192	}
dvander@27	6193
dvander@27	6194	static void dobreak(void)
dvander@27	6195	{
dvander@27	6196	int *ptr;
dvander@27	6197
faluco@62	6198	endlessloop=0; /* if we were inside an endless loop, we just jumped out */
dvander@27	6199	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6200	needtoken(tTERM);
dvander@27	6201	if (ptr==NULL)
dvander@27	6202	return;
dvander@27	6203	destructsymbols(&loctab,nestlevel);
dvander@117	6204	genstackfree(ptr[wqBRK]);
dvander@27	6205	jumplabel(ptr[wqEXIT]);
dvander@27	6206	}
dvander@27	6207
dvander@27	6208	static void docont(void)
dvander@27	6209	{
dvander@27	6210	int *ptr;
dvander@27	6211
dvander@27	6212	ptr=readwhile(); /* readwhile() gives an error if not in loop */
dvander@27	6213	needtoken(tTERM);
dvander@27	6214	if (ptr==NULL)
dvander@27	6215	return;
dvander@27	6216	destructsymbols(&loctab,nestlevel);
dvander@117	6217	genstackfree(ptr[wqCONT]);
dvander@128	6218	genheapfree(ptr[wqCONT]);
dvander@27	6219	jumplabel(ptr[wqLOOP]);
dvander@27	6220	}
dvander@27	6221
dvander@27	6222	SC_FUNC void exporttag(int tag)
dvander@27	6223	{
dvander@27	6224	/* find the tag by value in the table, then set the top bit to mark it
dvander@27	6225	* "public"
dvander@27	6226	*/
dvander@27	6227	if (tag!=0 && (tag & PUBLICTAG)==0) {
dvander@27	6228	constvalue *ptr;
dvander@27	6229	for (ptr=tagname_tab.next; ptr!=NULL && tag!=(int)(ptr->value & TAGMASK); ptr=ptr->next)
dvander@27	6230	/* nothing */;
dvander@27	6231	if (ptr!=NULL)
dvander@27	6232	ptr->value \|= PUBLICTAG;
dvander@27	6233	} /* if */
dvander@27	6234	}
dvander@27	6235
dvander@27	6236	static void doexit(void)
dvander@27	6237	{
dvander@27	6238	int tag=0;
dvander@27	6239
dvander@27	6240	if (matchtoken(tTERM)==0){
dvander@27	6241	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6242	needtoken(tTERM);
dvander@27	6243	} else {
dvander@27	6244	ldconst(0,sPRI);
dvander@27	6245	} /* if */
dvander@27	6246	ldconst(tag,sALT);
dvander@27	6247	exporttag(tag);
dvander@27	6248	destructsymbols(&loctab,0); /* call destructor for all locals */
dvander@27	6249	ffabort(xEXIT);
dvander@27	6250	}
dvander@27	6251
dvander@27	6252	static void dosleep(void)
dvander@27	6253	{
dvander@27	6254	int tag=0;
dvander@27	6255
dvander@27	6256	if (matchtoken(tTERM)==0){
dvander@27	6257	doexpr(TRUE,FALSE,FALSE,TRUE,&tag,NULL,TRUE);
dvander@27	6258	needtoken(tTERM);
dvander@27	6259	} else {
dvander@27	6260	ldconst(0,sPRI);
dvander@27	6261	} /* if */
dvander@27	6262	ldconst(tag,sALT);
dvander@27	6263	exporttag(tag);
dvander@27	6264	ffabort(xSLEEP);
dvander@27	6265
dvander@27	6266	/* for stack usage checking, mark the use of the sleep instruction */
dvander@27	6267	pc_memflags \|= suSLEEP_INSTR;
dvander@27	6268	}
dvander@27	6269
dvander@27	6270	static void dostate(void)
dvander@27	6271	{
dvander@27	6272	char name[sNAMEMAX+1];
dvander@27	6273	constvalue *automaton;
dvander@27	6274	constvalue *state;
dvander@27	6275	constvalue *stlist;
dvander@27	6276	int flabel;
dvander@27	6277	symbol *sym;
dvander@27	6278	#if !defined SC_LIGHT
dvander@27	6279	int length,index,listid,listindex,stateindex;
dvander@27	6280	char *doc;
dvander@27	6281	#endif
dvander@27	6282
dvander@27	6283	/* check for an optional condition */
dvander@27	6284	if (matchtoken('(')) {
dvander@27	6285	flabel=getlabel(); /* get label number for "false" branch */
dvander@27	6286	pc_docexpr=TRUE; /* attach expression as a documentation string */
faluco@62	6287	test(flabel,TEST_PLAIN,FALSE);/* get expression, branch to flabel if false */
dvander@27	6288	pc_docexpr=FALSE;
dvander@27	6289	needtoken(')');
dvander@27	6290	} else {
dvander@27	6291	flabel=-1;
dvander@27	6292	} /* if */
dvander@27	6293
dvander@27	6294	if (!sc_getstateid(&automaton,&state)) {
dvander@27	6295	delete_autolisttable();
dvander@27	6296	return;
dvander@27	6297	} /* if */
dvander@27	6298	needtoken(tTERM);
dvander@27	6299
dvander@27	6300	/* store the new state id */
dvander@27	6301	assert(state!=NULL);
dvander@27	6302	ldconst(state->value,sPRI);
dvander@27	6303	assert(automaton!=NULL);
dvander@27	6304	assert(automaton->index==0 && automaton->name[0]=='\0' \|\| automaton->index>0);
dvander@27	6305	storereg(automaton->value,sPRI);
dvander@27	6306
dvander@27	6307	/* find the optional entry() function for the state */
dvander@27	6308	sym=findglb(uENTRYFUNC,sGLOBAL);
dvander@27	6309	if (sc_status==statWRITE && sym!=NULL && sym->ident==iFUNCTN && sym->states!=NULL) {
dvander@27	6310	for (stlist=sym->states->next; stlist!=NULL; stlist=stlist->next) {
dvander@27	6311	assert(strlen(stlist->name)!=0);
dvander@27	6312	if (state_getfsa(stlist->index)==automaton->index && state_inlist(stlist->index,(int)state->value))
dvander@27	6313	break; /* found! */
dvander@27	6314	} /* for */
dvander@27	6315	assert(stlist==NULL \|\| state_inlist(stlist->index,state->value));
dvander@27	6316	if (stlist!=NULL) {
dvander@27	6317	/* the label to jump to is in stlist->name */
dvander@27	6318	ffcall(sym,stlist->name,0);
dvander@27	6319	} /* if */
dvander@27	6320	} /* if */
dvander@27	6321
dvander@27	6322	if (flabel>=0)
dvander@27	6323	setlabel(flabel); /* condition was false, jump around the state switch */
dvander@27	6324
dvander@27	6325	#if !defined SC_LIGHT
dvander@27	6326	/* mark for documentation */
dvander@27	6327	if (sc_status==statFIRST) {
dvander@27	6328	char *str;
dvander@27	6329	/* get the last list id attached to the function, this contains the source states */
dvander@27	6330	assert(curfunc!=NULL);
dvander@27	6331	if (curfunc->states!=NULL) {
dvander@27	6332	stlist=curfunc->states->next;
dvander@27	6333	assert(stlist!=NULL);
dvander@27	6334	while (stlist->next!=NULL)
dvander@27	6335	stlist=stlist->next;
dvander@27	6336	listid=stlist->index;
dvander@27	6337	} else {
dvander@27	6338	listid=-1;
dvander@27	6339	} /* if */
dvander@27	6340	listindex=0;
dvander@27	6341	length=strlen(name)+70; /* +70 for the fixed part "<transition ... />\n" */
dvander@27	6342	/* see if there are any condition strings to attach */
dvander@27	6343	for (index=0; (str=get_autolist(index))!=NULL; index++)
dvander@27	6344	length+=strlen(str);
dvander@27	6345	if ((doc=(char)malloc(lengthsizeof(char)))!=NULL) {
dvander@27	6346	do {
dvander@27	6347	sprintf(doc,"<transition target=\"%s\"",name);
dvander@27	6348	if (listid>=0) {
dvander@27	6349	/* get the source state */
dvander@27	6350	stateindex=state_listitem(listid,listindex);
dvander@27	6351	state=state_findid(stateindex);
dvander@27	6352	assert(state!=NULL);
dvander@27	6353	sprintf(doc+strlen(doc)," source=\"%s\"",state->name);
dvander@27	6354	} /* if */
dvander@27	6355	if (get_autolist(0)!=NULL) {
dvander@27	6356	/* add the condition */
dvander@27	6357	strcat(doc," condition=\"");
dvander@27	6358	for (index=0; (str=get_autolist(index))!=NULL; index++) {
dvander@27	6359	/* remove the ')' token that may be appended before detecting that the expression has ended */
dvander@27	6360	if (str!=')' \|\| (str+1)!='\0' \|\| get_autolist(index+1)!=NULL)
dvander@27	6361	strcat(doc,str);
dvander@27	6362	} /* for */
dvander@27	6363	strcat(doc,"\"");
dvander@27	6364	} /* if */
dvander@27	6365	strcat(doc,"/>\n");
dvander@27	6366	insert_docstring(doc);
dvander@27	6367	} while (listid>=0 && ++listindex<state_count(listid));
dvander@27	6368	free(doc);
dvander@27	6369	} /* if */
dvander@27	6370	} /* if */
dvander@27	6371	#endif
dvander@27	6372	delete_autolisttable();
dvander@27	6373	}
dvander@27	6374
dvander@27	6375
dvander@27	6376	static void addwhile(int *ptr)
dvander@27	6377	{
dvander@27	6378	int k;
dvander@27	6379
dvander@27	6380	ptr[wqBRK]=(int)declared; /* stack pointer (for "break") */
dvander@27	6381	ptr[wqCONT]=(int)declared; /* for "continue", possibly adjusted later */
dvander@27	6382	ptr[wqLOOP]=getlabel();
dvander@27	6383	ptr[wqEXIT]=getlabel();
dvander@27	6384	if (wqptr>=(wq+wqTABSZ-wqSIZE))
dvander@27	6385	error(102,"loop table"); /* loop table overflow (too many active loops)*/
dvander@27	6386	k=0;
dvander@27	6387	while (k<wqSIZE){ /* copy "ptr" to while queue table */
dvander@27	6388	wqptr=ptr;
dvander@27	6389	wqptr+=1;
dvander@27	6390	ptr+=1;
dvander@27	6391	k+=1;
dvander@27	6392	} /* while */
dvander@27	6393	}
dvander@27	6394
dvander@27	6395	static void delwhile(void)
dvander@27	6396	{
dvander@27	6397	if (wqptr>wq)
dvander@27	6398	wqptr-=wqSIZE;
dvander@27	6399	}
dvander@27	6400
dvander@27	6401	static int *readwhile(void)
dvander@27	6402	{
dvander@27	6403	if (wqptr<=wq){
dvander@27	6404	error(24); /* out of context */
dvander@27	6405	return NULL;
dvander@27	6406	} else {
dvander@27	6407	return (wqptr-wqSIZE);
dvander@27	6408	} /* if */
dvander@27	6409	}
dvander@27	6410

author	David Anderson <dvander@alliedmods.net>
	Fri Jan 12 04:11:39 2007 +0000 (2007-01-12)
changeset 286	463d266be91d
parent 202	8824cfb203ac
child 338	c1f0821e1991
permissions	-rw-r--r--