source: trunk/tools/wrc/parser.l

Last change on this file was 5522, checked in by sandervl, 24 years ago

updates
File size: 18.5 KB
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[882]1/* -*-C-*-
2 *
[5522]3 * Copyright 1998-2000 Bertho A. Stultiens (BS)
[882]4 *
[5522]5 * 21-May-2000 BS - Fixed the ident requirement of resource names
6 * which can be keywords.
7 * 30-Apr-2000 BS - Reintegration into the wine-tree
8 * 11-Jan-2000 BS - Very drastic cleanup because we don't have a
9 * preprocessor in here anymore.
10 * 02-Jan-2000 BS - Removed the preprocessor code
11 * 23-Dec-1999 BS - Removed the copyright for Martin von Loewis.
12 * There is really nothing left of his code in
13 * this parser.
[882]14 * 20-Jun-1998 BS - Changed the filename conversion. Filenames are
15 * case-sensitive inder *nix, but not under dos.
16 * default behaviour is to convert to lower case.
17 * - All backslashes are converted to forward and
18 * both single and double slash is recognized as
19 * MS/Borland does.
20 * - Fixed a bug in 'yywf' case that prevented
21 * double quoted names to be scanned propperly.
22 *
23 * 19-May-1998 BS - Started to build a preprocessor.
24 * - Changed keyword processing completely to
25 * table-lookups.
26 *
27 * 20-Apr-1998 BS - Added ';' comment stripping
28 *
29 * 17-Apr-1998 BS - Made the win32 keywords optional when compiling in
30 * 16bit mode
31 *
32 * 15-Apr-1998 BS - Changed string handling to include escapes
33 * - Added unicode string handling (no codepage
34 * translation though).
35 * - 'Borrowed' the main idea of string scanning from
36 * the flex manual pages.
37 * - Added conditional handling of scanning depending
38 * on the state of the parser. This was mainly required
39 * to distinguish a file to load or raw data that
40 * follows. MS's definition of filenames is rather
41 * complex... It can be unquoted or double quoted. If
42 * double quoted, then the '\\' char is not automatically
43 * escaped according to Borland's rc compiler, but it
44 * accepts both "\\path\\file.rc" and "\path\file.rc".
45 * This makes life very hard! I go for the escaped
46 * version, as this seems to be the documented way...
47 * - Single quoted strings are now parsed and converted
48 * here.
49 * - Added comment stripping. The implementation is
50 * 'borrowed' from the flex manpages.
51 * - Rebuild string processing so that it may contain
52 * escaped '\0'.
53 */
54
55/* Exclusive string handling */
56%x yystr
57/* Exclusive unicode string handling */
58%x yylstr
59/* Exclusive rcdata single quoted data handling */
60%x yyrcd
61/* Exclusive comment eating... */
62%x comment
63/* Set when stripping c-junk */
[3426]64%x pp_stripe
[882]65%x pp_strips
66%x pp_stripp
67%x pp_stripp_final
[5522]68/* Set when scanning #line style directives */
69%x pp_line
[882]70
[5522]71%option stack
[882]72%option never-interactive
[5522]73
[882]74/* Some shortcut definitions */
75ws [ \f\t\r]
76cident [a-zA-Z_][0-9a-zA-Z_]*
77
78%{
79
80/*#define LEX_DEBUG*/
81
82#include "config.h"
83
84#include <stdio.h>
85#include <stdlib.h>
86#include <string.h>
87#include <ctype.h>
[5522]88#include <assert.h>
[882]89
90#include "wrc.h"
91#include "utils.h"
92#include "preproc.h"
93#include "parser.h"
94#include "newstruc.h"
95
96#include "y.tab.h"
97
98#define YY_USE_PROTOS
99#define YY_NO_UNPUT
[5522]100#define YY_NO_TOP_STATE
[882]101
102/* Always update the current character position within a line */
[5522]103#define YY_USER_ACTION char_number+=yyleng; wanted_id = want_id; want_id = 0;
[882]104
[5522]105static void addcchar(char c);
106static void addwchar(short s);
107static string_t *get_buffered_cstring(void);
108static string_t *get_buffered_wstring(void);
109static string_t *make_string(char *s);
[882]110
111static char *cbuffer; /* Buffers for string collection */
112static int cbufidx;
113static int cbufalloc = 0;
114static short *wbuffer;
115static int wbufidx;
116static int wbufalloc = 0;
[3426]117static int stripslevel = 0; /* Count {} during pp_strips/pp_stripe mode */
[882]118static int stripplevel = 0; /* Count () during pp_strips mode */
119static int cjunk_tagline; /* Where did we start stripping (helps error tracking) */
120
[5522]121/*
122 * This one is a bit tricky.
123 * We set 'want_id' in the parser to get the first
124 * identifier we get across in the scanner, but we
125 * also want it to be reset at nearly any token we
126 * see. Exceptions are:
127 * - newlines
128 * - comments
129 * - whitespace
130 *
131 * The scanner will automatically reset 'want_id'
132 * after *each* scanner reduction and puts is value
133 * into the var below. In this way we can see the
134 * state after the YY_RULE_SETUP (i.e. the user action;
135 * see above) and don't have to worry too much when
136 * it needs to be reset.
137 */
138static int wanted_id = 0;
139static int save_wanted_id; /* To save across comment reductions */
[882]140
141struct keyword {
142 char *keyword;
143 int token;
144 int isextension;
145 int needcase;
[5522]146 int alwayskw;
[882]147};
148
149static struct keyword keywords[] = {
[5522]150 { "ACCELERATORS", tACCELERATORS, 0, 0, 0},
151 { "ALT", tALT, 0, 0, 0},
152 { "ASCII", tASCII, 0, 0, 0},
153 { "AUTO3STATE", tAUTO3STATE, 1, 0, 0},
154 { "AUTOCHECKBOX", tAUTOCHECKBOX, 1, 0, 0},
155 { "AUTORADIOBUTTON", tAUTORADIOBUTTON, 1, 0, 0},
156 { "BEGIN", tBEGIN, 0, 0, 0},
157 { "BITMAP", tBITMAP, 0, 0, 0},
158 { "BLOCK", tBLOCK, 0, 0, 0},
159 { "BUTTON", tBUTTON, 1, 0, 0},
160 { "CAPTION", tCAPTION, 0, 0, 0},
161 { "CHARACTERISTICS", tCHARACTERISTICS, 1, 0, 0},
162 { "CHECKBOX", tCHECKBOX, 0, 0, 0},
163 { "CHECKED", tCHECKED, 0, 0, 0},
164 { "CLASS", tCLASS, 0, 0, 0},
165 { "COMBOBOX", tCOMBOBOX, 0, 0, 0},
166 { "CONTROL", tCONTROL, 0, 0, 0},
167 { "CTEXT", tCTEXT, 0, 0, 0},
168 { "CURSOR", tCURSOR, 0, 0, 0},
169 { "DEFPUSHBUTTON", tDEFPUSHBUTTON, 0, 0, 0},
170 { "DIALOG", tDIALOG, 0, 0, 0},
171 { "DIALOGEX", tDIALOGEX, 1, 0, 0},
172 { "DISCARDABLE", tDISCARDABLE, 0, 0, 0},
173 { "DLGINIT", tDLGINIT, 0, 0, 0},
174 { "EDITTEXT", tEDITTEXT, 0, 0, 0},
175 { "END", tEND, 0, 0, 0},
176 { "enum", tENUM, 0, 1, 1},
177 { "EXSTYLE", tEXSTYLE, 0, 0, 0},
178 { "extern", tEXTERN, 0, 1, 1},
179 { "FILEFLAGS", tFILEFLAGS, 0, 0, 0},
180 { "FILEFLAGSMASK", tFILEFLAGSMASK, 0, 0, 0},
181 { "FILEOS", tFILEOS, 0, 0, 0},
182 { "FILESUBTYPE", tFILESUBTYPE, 0, 0, 0},
183 { "FILETYPE", tFILETYPE, 0, 0, 0},
184 { "FILEVERSION", tFILEVERSION, 0, 0, 0},
185 { "FIXED", tFIXED, 0, 0, 0},
186 { "FONT", tFONT, 0, 0, 0},
187 { "FONTDIR", tFONTDIR, 0, 0, 0}, /* This is a Borland BRC extension */
188 { "GRAYED", tGRAYED, 0, 0, 0},
189 { "GROUPBOX", tGROUPBOX, 0, 0, 0},
190 { "HELP", tHELP, 0, 0, 0},
191 { "ICON", tICON, 0, 0, 0},
192 { "IMPURE", tIMPURE, 0, 0, 0},
193 { "INACTIVE", tINACTIVE, 0, 0, 0},
194 { "inline", tINLINE, 0, 1, 1},
195 { "LANGUAGE", tLANGUAGE, 1, 0, 1},
196 { "LISTBOX", tLISTBOX, 0, 0, 0},
197 { "LOADONCALL", tLOADONCALL, 0, 0, 0},
198 { "LTEXT", tLTEXT, 0, 0, 0},
199 { "MENU", tMENU, 0, 0, 0},
200 { "MENUBARBREAK", tMENUBARBREAK, 0, 0, 0},
201 { "MENUBREAK", tMENUBREAK, 0, 0, 0},
202 { "MENUEX", tMENUEX, 1, 0, 0},
203 { "MENUITEM", tMENUITEM, 0, 0, 0},
204 { "MESSAGETABLE", tMESSAGETABLE, 1, 0, 0},
205 { "MOVEABLE", tMOVEABLE, 0, 0, 0},
206 { "NOINVERT", tNOINVERT, 0, 0, 0},
207 { "NOT", tNOT, 0, 0, 0},
208 { "POPUP", tPOPUP, 0, 0, 0},
209 { "PRELOAD", tPRELOAD, 0, 0, 0},
210 { "PRODUCTVERSION", tPRODUCTVERSION, 0, 0, 0},
211 { "PURE", tPURE, 0, 0, 0},
212 { "PUSHBUTTON", tPUSHBUTTON, 0, 0, 0},
213 { "RADIOBUTTON", tRADIOBUTTON, 0, 0, 0},
214 { "RCDATA", tRCDATA, 0, 0, 0},
215 { "RTEXT", tRTEXT, 0, 0, 0},
216 { "SCROLLBAR", tSCROLLBAR, 0, 0, 0},
217 { "SEPARATOR", tSEPARATOR, 0, 0, 0},
218 { "SHIFT", tSHIFT, 0, 0, 0},
219 { "STATE3", tSTATE3, 1, 0, 0},
220 { "static", tSTATIC, 0, 1, 1},
221 { "STRING", tSTRING, 0, 0, 0},
222 { "STRINGTABLE", tSTRINGTABLE, 0, 0, 1},
223 { "struct", tSTRUCT, 0, 1, 1},
224 { "STYLE", tSTYLE, 0, 0, 0},
225 { "TOOLBAR", tTOOLBAR, 1, 0, 0},
226 { "typedef", tTYPEDEF, 0, 1, 1},
227 { "VALUE", tVALUE, 0, 0, 0},
228 { "VERSION", tVERSION, 1, 0, 0},
229 { "VERSIONINFO", tVERSIONINFO, 0, 0, 0},
230 { "VIRTKEY", tVIRTKEY, 0, 0, 0}
[882]231};
232
233#define NKEYWORDS (sizeof(keywords)/sizeof(keywords[0]))
234#define KWP(p) ((struct keyword *)(p))
[5522]235static int kw_cmp_func(const void *s1, const void *s2)
[882]236{
237 int ret;
238 ret = strcasecmp(KWP(s1)->keyword, KWP(s2)->keyword);
239 if(!ret && (KWP(s1)->needcase || KWP(s2)->needcase))
240 return strcmp(KWP(s1)->keyword, KWP(s2)->keyword);
241 else
242 return ret;
243}
244
245#define KW_BSEARCH
246#define DO_SORT
[5522]247static struct keyword *iskeyword(char *kw)
[882]248{
249 struct keyword *kwp;
250 struct keyword key;
251 key.keyword = kw;
252 key.needcase = 0;
253#ifdef DO_SORT
254 {
255 /* Make sure that it is sorted for bsearsh */
256 static int sorted = 0;
257 if(!sorted)
258 {
259 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func);
260 sorted = 1;
261 }
262 }
263#endif
264#ifdef KW_BSEARCH
265 kwp = bsearch(&key, keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func);
266#else
267 {
268 int i;
269 for(i = 0; i < NKEYWORDS; i++)
270 {
271 if(!kw_cmp_func(&key, &keywords[i]))
272 break;
273 }
274 if(i < NKEYWORDS)
275 kwp = &keywords[i];
276 else
277 kwp = NULL;
278 }
279#endif
280
281 if(kwp == NULL || (kwp->isextension && !extensions))
282 return NULL;
283 else
284 return kwp;
285}
286
287%}
288
[5522]289/*
290 **************************************************************************
291 * The flexer starts here
292 **************************************************************************
293 */
[882]294%%
[5522]295 /*
296 * Catch the GCC-style line statements here and parse them.
297 * This has the advantage that you can #include at any
298 * stage in the resource file.
299 * The preprocessor generates line directives in the format:
300 * # <linenum> "filename" <codes>
301 *
302 * Codes can be a sequence of:
303 * - 1 start of new file
304 * - 2 returning to previous
305 * - 3 system header
306 * - 4 interpret as C-code
307 *
308 * 4 is not used and 1 mutually excludes 2
309 * Anyhow, we are not really interested in these at all
310 * because we only want to know the linenumber and
311 * filename.
312 */
313<INITIAL,pp_strips,pp_stripp>^{ws}*\#{ws}* yy_push_state(pp_line);
314<pp_line>[^\n]* {
315 int lineno;
316 char *cptr;
317 char *fname;
318 yy_pop_state();
319 lineno = (int)strtol(yytext, &cptr, 10);
320 if(!lineno)
321 yyerror("Malformed '#...' line-directive; invalid linenumber");
322 fname = strchr(cptr, '"');
323 if(!fname)
324 yyerror("Malformed '#...' line-directive; missing filename");
325 fname++;
326 cptr = strchr(fname, '"');
327 if(!cptr)
328 yyerror("Malformed '#...' line-directive; missing terminating \"");
329 *cptr = '\0';
330 line_number = lineno - 1; /* We didn't read the newline */
331 input_name = xstrdup(fname);
332 }
[882]333
[5522]334 /*
335 * Strip everything until a ';' taking
336 * into account braces {} for structures,
337 * classes and enums.
338 */
339<pp_strips>\{ stripslevel++;
340<pp_strips>\} stripslevel--;
341<pp_strips>; if(!stripslevel) yy_pop_state();
[882]342<pp_strips>\/[^*\n] ; /* To catch comments */
343<pp_strips>[^\{\};\n#/]* ; /* Ignore rest */
[5522]344<pp_strips>\n line_number++; char_number = 1;
[882]345
[5522]346<pp_stripp>\( stripplevel++;
347<pp_stripp>\) {
348 stripplevel--;
349 if(!stripplevel)
350 {
351 yy_pop_state();
352 yy_push_state(pp_stripp_final);
353 }
[882]354 }
355<pp_stripp>\/[^*\n] ; /* To catch comments */
356<pp_stripp>[^\(\);\n#/]* ; /* Ignore rest */
[5522]357<pp_stripp>\n line_number++; char_number = 1;
[882]358
[5522]359<pp_stripp_final>{ws}* ; /* Ignore */
360<pp_stripp_final>; yy_pop_state(); /* Kill the semicolon */
361<pp_stripp_final>\n line_number++; char_number = 1; yy_pop_state();
362<pp_stripp_final>. yyless(0); yy_pop_state();
[882]363
364\{ return tBEGIN;
365\} return tEND;
366
[5522]367[0-9]+[lL]? { yylval.num = strtoul(yytext, 0, 10); return toupper(yytext[yyleng-1]) == 'L' ? tLNUMBER : tNUMBER; }
3680[xX][0-9A-Fa-f]+[lL]? { yylval.num = strtoul(yytext, 0, 16); return toupper(yytext[yyleng-1]) == 'L' ? tLNUMBER : tNUMBER; }
3690[oO][0-7]+[lL]? { yylval.num = strtoul(yytext+2, 0, 8); return toupper(yytext[yyleng-1]) == 'L' ? tLNUMBER : tNUMBER; }
370
371 /*
372 * The next two rules scan identifiers and filenames.
373 * This is achieved by using the priority ruling
374 * of the scanner where a '.' is valid in a filename
375 * and *only* in a filename. In this case, the second
376 * rule will be reduced because it is longer.
377 */
[882]378[A-Za-z_0-9]+ {
[5522]379 struct keyword *tok = iskeyword(yytext);
[882]380
[5522]381 if(tok)
[882]382 {
[5522]383 if(tok->token == tCLASS && !strcmp(yytext, "class"))
384 return tCPPCLASS;
385 else if(wanted_id && !tok->alwayskw)
[882]386 {
[5522]387 yylval.str = make_string(yytext);
388 return tIDENT;
[882]389 }
[5522]390 else
391 return tok->token;
[882]392 }
393 else
394 {
395 yylval.str = make_string(yytext);
[5522]396 return tIDENT;
[882]397 }
398 }
[5522]399[A-Za-z_0-9./\\]+ yylval.str = make_string(yytext); return tFILENAME;
[882]400
[5522]401 /*
402 * Wide string scanning
403 */
[882]404L\" {
[5522]405 yy_push_state(yylstr);
[882]406 wbufidx = 0;
407 if(!win32)
408 yywarning("16bit resource contains unicode strings\n");
409 }
[5522]410<yylstr>\"{ws}+ |
[882]411<yylstr>\" {
[5522]412 yy_pop_state();
[882]413 yylval.str = get_buffered_wstring();
414 return tSTRING;
415 }
416<yylstr>\\[0-7]{1,6} { /* octal escape sequence */
417 int result;
418 result = strtol(yytext+1, 0, 8);
419 if ( result > 0xffff )
420 yyerror("Character constant out of range");
421 addwchar((short)result);
422 }
423<yylstr>\\x[0-9a-fA-F]{4} { /* hex escape sequence */
424 int result;
425 result = strtol(yytext+2, 0, 16);
426 addwchar((short)result);
427 }
[5522]428<yylstr>\\x[0-9a-fA-F]{1,3} { yyerror("Invalid hex escape sequence '%s'", yytext); }
429
[882]430<yylstr>\\[0-9]+ yyerror("Bad escape secuence");
431<yylstr>\\a addwchar('\a');
432<yylstr>\\b addwchar('\b');
433<yylstr>\\f addwchar('\f');
434<yylstr>\\n addwchar('\n');
435<yylstr>\\r addwchar('\r');
436<yylstr>\\t addwchar('\t');
437<yylstr>\\v addwchar('\v');
[5522]438<yylstr>\\(\n|.) addwchar(yytext[1]);
439<yylstr>\\\r\n addwchar(yytext[2]);
[882]440<yylstr>\"\" addcchar('\"'); /* "bla""bla" -> "bla\"bla" */
441<yylstr>\\\"\" addcchar('\"'); /* "bla\""bla" -> "bla\"bla" */
442<yylstr>\"{ws}+\" ; /* "bla" "bla" -> "blabla" */
443<yylstr>[^\\\n\"]+ {
444 char *yptr = yytext;
445 while(*yptr) /* FIXME: codepage translation */
446 addwchar(*yptr++ & 0xff);
447 }
[5522]448<yylstr>\n yyerror("Unterminated string");
[882]449
[5522]450 /*
451 * Normal string scanning
452 */
453\" yy_push_state(yystr); cbufidx = 0;
454<yystr>\"{ws}+ |
[882]455<yystr>\" {
[5522]456 yy_pop_state();
[882]457 yylval.str = get_buffered_cstring();
458 return tSTRING;
459 }
460<yystr>\\[0-7]{1,3} { /* octal escape sequence */
461 int result;
462 result = strtol(yytext+1, 0, 8);
463 if ( result > 0xff )
464 yyerror("Character constant out of range");
465 addcchar((char)result);
466 }
467<yystr>\\x[0-9a-fA-F]{2} { /* hex escape sequence */
468 int result;
469 result = strtol(yytext+2, 0, 16);
470 addcchar((char)result);
471 }
[5522]472<yystr>\\x[0-9a-fA-F] { yyerror("Invalid hex escape sequence '%s'", yytext); }
473
[882]474<yystr>\\[0-9]+ yyerror("Bad escape secuence");
475<yystr>\\a addcchar('\a');
476<yystr>\\b addcchar('\b');
477<yystr>\\f addcchar('\f');
478<yystr>\\n addcchar('\n');
479<yystr>\\r addcchar('\r');
480<yystr>\\t addcchar('\t');
481<yystr>\\v addcchar('\v');
[5522]482<yystr>\\(\n|.) addcchar(yytext[1]);
483<yystr>\\\r\n addcchar(yytext[2]);
[882]484<yystr>[^\\\n\"]+ {
485 char *yptr = yytext;
486 while(*yptr)
487 addcchar(*yptr++);
488 }
489<yystr>\"\" addcchar('\"'); /* "bla""bla" -> "bla\"bla" */
490<yystr>\\\"\" addcchar('\"'); /* "bla\""bla" -> "bla\"bla" */
491<yystr>\"{ws}+\" ; /* "bla" "bla" -> "blabla" */
[5522]492<yystr>\n yyerror("Unterminated string");
[882]493
[5522]494 /*
495 * Raw data scanning
496 */
497\' yy_push_state(yyrcd); cbufidx = 0;
[882]498<yyrcd>\' {
[5522]499 yy_pop_state();
[882]500 yylval.raw = new_raw_data();
501 yylval.raw->size = cbufidx;
502 yylval.raw->data = xmalloc(yylval.raw->size);
503 memcpy(yylval.raw->data, cbuffer, yylval.raw->size);
[5522]504 return tRAWDATA;
[882]505 }
506<yyrcd>[0-9a-fA-F]{2} {
507 int result;
508 result = strtol(yytext, 0, 16);
509 addcchar((char)result);
510 }
511<yyrcd>{ws}+ ; /* Ignore space */
512<yyrcd>\n line_number++; char_number = 1;
513<yyrcd>. yyerror("Malformed data-line");
514
[5522]515 /*
516 * Comment stripping
517 * Should never occur after preprocessing
518 */
519<INITIAL,pp_stripp,pp_strips>"/*" {
520 yy_push_state(comment);
521 save_wanted_id = wanted_id;
522 if(!no_preprocess)
523 yywarning("Found comments after preprocessing, please report");
524 }
[882]525<comment>[^*\n]* ;
526<comment>"*"+[^*/\n]* ;
527<comment>\n line_number++; char_number = 1;
[5522]528<comment>"*"+"/" yy_pop_state(); want_id = save_wanted_id;
[882]529
[5522]530;[^\n]* want_id = wanted_id; /* not really comment, but left-over c-junk */
531"//"[^\n]* want_id = wanted_id; if(!no_preprocess) yywarning("Found comments after preprocessing, please report");
[882]532
[5522]533\n {
534 want_id = wanted_id;
[882]535 line_number++;
536 char_number = 1;
537 if(want_nl)
538 {
539 want_nl = 0;
540 return tNL;
541 }
542 }
[5522]543{ws}+ want_id = wanted_id; /* Eat whitespace */
[882]544
545<INITIAL>. return yytext[0];
[5522]546
[882]547<<EOF>> {
[5522]548 if(YY_START == pp_strips || YY_START == pp_stripe || YY_START == pp_stripp || YY_START == pp_stripp_final)
549 yyerror("Unexpected end of file during c-junk scanning (started at %d)", cjunk_tagline);
550 else
551 yyterminate();
[882]552 }
553
554<*>.|\n {
555 /* Catch all rule to find any unmatched text */
556 if(*yytext == '\n')
557 {
558 line_number++;
559 char_number = 1;
560 }
[3426]561 yywarning("Unmatched text '%c' (0x%02x) YY_START=%d stripslevel=%d",
[5522]562 isprint(*yytext & 0xff) ? *yytext : '.', *yytext, YY_START,stripslevel);
[882]563 }
564
565%%
566
567#ifndef yywrap
568int yywrap(void)
569{
570#if 0
571 if(bufferstackidx > 0)
572 {
573 return 0;
574 }
575#endif
576 return 1;
577}
578#endif
579
580/* These dup functions copy the enclosed '\0' from
581 * the resource string.
582 */
[5522]583static void addcchar(char c)
[882]584{
585 if(cbufidx >= cbufalloc)
586 {
587 cbufalloc += 1024;
588 cbuffer = xrealloc(cbuffer, cbufalloc * sizeof(cbuffer[0]));
589 if(cbufalloc > 65536)
590 yywarning("Reallocating string buffer larger than 64kB");
591 }
592 cbuffer[cbufidx++] = c;
593}
594
[5522]595static void addwchar(short s)
[882]596{
597 if(wbufidx >= wbufalloc)
598 {
599 wbufalloc += 1024;
600 wbuffer = xrealloc(wbuffer, wbufalloc * sizeof(wbuffer[0]));
601 if(wbufalloc > 65536)
602 yywarning("Reallocating wide string buffer larger than 64kB");
603 }
604
605 /*
606 * BS 08-Aug-1999 FIXME: The '& 0xff' is probably a bug, but I have
607 * not experienced it yet and I seem to remember that this was for
608 * a reason. But, as so many things you tend to forget why.
609 * I guess that there were problems due to the sign extension of
610 * shorts WRT chars (e.g. 0x80 becomes 0xff80 instead of 0x0080).
611 * This should then be fixed in the lexer calling the function.
612 */
613 wbuffer[wbufidx++] = (short)(s & 0xff);
614}
615
[5522]616static string_t *get_buffered_cstring(void)
[882]617{
618 string_t *str = new_string();
619 str->size = cbufidx;
620 str->type = str_char;
621 str->str.cstr = (char *)xmalloc(cbufidx+1);
622 memcpy(str->str.cstr, cbuffer, cbufidx);
623 str->str.cstr[cbufidx] = '\0';
624 return str;
625}
626
[5522]627static string_t *get_buffered_wstring(void)
[882]628{
629 string_t *str = new_string();
630 str->size = wbufidx;
631 str->type = str_unicode;
632 str->str.wstr = (short *)xmalloc(2*(wbufidx+1));
633 memcpy(str->str.wstr, wbuffer, wbufidx);
634 str->str.wstr[wbufidx] = 0;
635 return str;
636}
637
[5522]638static string_t *make_string(char *s)
[882]639{
640 string_t *str = new_string();
641 str->size = strlen(s);
642 str->type = str_char;
643 str->str.cstr = (char *)xmalloc(str->size+1);
644 memcpy(str->str.cstr, s, str->size+1);
645 return str;
646}
647
648/* Called from the parser to kill c-junk */
[3426]649void strip_extern(void)
650{
651 cjunk_tagline = line_number;
[5522]652 yy_push_state(pp_stripe);
[3426]653}
654
[882]655void strip_til_semicolon(void)
656{
657 cjunk_tagline = line_number;
[5522]658 yy_push_state(pp_strips);
[882]659}
660
661void strip_til_parenthesis(void)
662{
663 cjunk_tagline = line_number;
664 stripplevel = 1; /* One scanned already */
[5522]665 yy_push_state(pp_stripp);
[882]666}
667
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