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fbd2eda1 GM |
1 | /* do not edit automatically generated by mc from bnflex. */ |
2 | /* bnflex.mod provides a simple lexical package for pg. | |
3 | ||
a945c346 | 4 | Copyright (C) 2001-2024 Free Software Foundation, Inc. |
fbd2eda1 GM |
5 | Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>. |
6 | ||
7 | This file is part of GNU Modula-2. | |
8 | ||
9 | GNU Modula-2 is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3, or (at your option) | |
12 | any later version. | |
13 | ||
14 | GNU Modula-2 is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GNU Modula-2; see the file COPYING3. If not see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
9525daf0 | 23 | #include <stdbool.h> |
fbd2eda1 GM |
24 | # if !defined (PROC_D) |
25 | # define PROC_D | |
26 | typedef void (*PROC_t) (void); | |
27 | typedef struct { PROC_t proc; } PROC; | |
28 | # endif | |
29 | ||
30 | # if !defined (TRUE) | |
31 | # define TRUE (1==1) | |
32 | # endif | |
33 | ||
34 | # if !defined (FALSE) | |
35 | # define FALSE (1==0) | |
36 | # endif | |
37 | ||
38 | #include <string.h> | |
39 | #include <limits.h> | |
40 | #define _bnflex_H | |
41 | #define _bnflex_C | |
42 | ||
43 | # include "GPushBackInput.h" | |
44 | # include "GSymbolKey.h" | |
45 | # include "GASCII.h" | |
46 | # include "GDebug.h" | |
47 | # include "GNameKey.h" | |
48 | # include "GStrLib.h" | |
49 | # include "GFIO.h" | |
50 | # include "GStrCase.h" | |
51 | # include "GStdIO.h" | |
52 | ||
53 | # define MaxNameLength 8192 | |
54 | typedef enum {bnflex_identtok, bnflex_literaltok, bnflex_codetok, bnflex_lbecomestok, bnflex_rbecomestok, bnflex_bartok, bnflex_lsparatok, bnflex_rsparatok, bnflex_lcparatok, bnflex_rcparatok, bnflex_lparatok, bnflex_rparatok, bnflex_errortok, bnflex_tfunctok, bnflex_symfunctok, bnflex_squotetok, bnflex_dquotetok, bnflex_moduletok, bnflex_begintok, bnflex_rulestok, bnflex_endtok, bnflex_lesstok, bnflex_gretok, bnflex_tokentok, bnflex_specialtok, bnflex_firsttok, bnflex_followtok, bnflex_BNFtok, bnflex_FNBtok, bnflex_declarationtok, bnflex_epsilontok, bnflex_eoftok} bnflex_TokenType; | |
55 | ||
56 | static FIO_File f; | |
57 | static SymbolKey_SymbolTree ReservedWords; | |
58 | static NameKey_Name CurrentToken; | |
59 | static bnflex_TokenType CurrentType; | |
9525daf0 GM |
60 | static bool Debugging; |
61 | static bool InQuote; | |
fbd2eda1 GM |
62 | static char QuoteChar; |
63 | ||
64 | /* | |
65 | OpenSource - Attempts to open the source file, a. | |
66 | The success of the operation is returned. | |
67 | */ | |
68 | ||
9525daf0 | 69 | extern "C" bool bnflex_OpenSource (const char *a_, unsigned int _a_high); |
fbd2eda1 GM |
70 | |
71 | /* | |
72 | CloseSource - Closes the current open file. | |
73 | */ | |
74 | ||
75 | extern "C" void bnflex_CloseSource (void); | |
76 | ||
77 | /* | |
78 | GetChar - returns the current character on the input stream. | |
79 | */ | |
80 | ||
81 | extern "C" char bnflex_GetChar (void); | |
82 | ||
83 | /* | |
84 | PutChar - pushes a character onto the push back stack, it also | |
85 | returns the character which has been pushed. | |
86 | */ | |
87 | ||
88 | extern "C" char bnflex_PutChar (char ch); | |
89 | ||
90 | /* | |
91 | SymIs - if t is equal to the current token the next token is read | |
92 | and true is returned, otherwise false is returned. | |
93 | */ | |
94 | ||
9525daf0 | 95 | extern "C" bool bnflex_SymIs (bnflex_TokenType t); |
fbd2eda1 GM |
96 | |
97 | /* | |
98 | IsSym - returns the result of the comparison between the current token | |
99 | type and t. | |
100 | */ | |
101 | ||
9525daf0 | 102 | extern "C" bool bnflex_IsSym (bnflex_TokenType t); |
fbd2eda1 GM |
103 | |
104 | /* | |
105 | GetCurrentTokenType - returns the type of current token. | |
106 | */ | |
107 | ||
108 | extern "C" bnflex_TokenType bnflex_GetCurrentTokenType (void); | |
109 | ||
110 | /* | |
111 | GetCurrentToken - returns the NameKey of the current token. | |
112 | */ | |
113 | ||
114 | extern "C" NameKey_Name bnflex_GetCurrentToken (void); | |
115 | ||
116 | /* | |
117 | SkipUntilWhite - skips all characters until white space is seen. | |
118 | */ | |
119 | ||
120 | extern "C" void bnflex_SkipUntilWhite (void); | |
121 | ||
122 | /* | |
123 | SkipWhite - skips all white space. | |
124 | */ | |
125 | ||
126 | extern "C" void bnflex_SkipWhite (void); | |
127 | ||
128 | /* | |
129 | SkipUntilEoln - skips until a lf is seen. It consumes the lf. | |
130 | */ | |
131 | ||
132 | extern "C" void bnflex_SkipUntilEoln (void); | |
133 | ||
134 | /* | |
135 | AdvanceToken - advances to the next token. | |
136 | */ | |
137 | ||
138 | extern "C" void bnflex_AdvanceToken (void); | |
139 | ||
140 | /* | |
141 | IsReserved - returns TRUE if the name is a reserved word. | |
142 | */ | |
143 | ||
9525daf0 | 144 | extern "C" bool bnflex_IsReserved (NameKey_Name name); |
fbd2eda1 GM |
145 | |
146 | /* | |
147 | PushBackToken - pushes a token back onto input. | |
148 | */ | |
149 | ||
150 | extern "C" void bnflex_PushBackToken (NameKey_Name t); | |
151 | ||
152 | /* | |
153 | SetDebugging - sets the debugging flag. | |
154 | */ | |
155 | ||
9525daf0 | 156 | extern "C" void bnflex_SetDebugging (bool flag); |
fbd2eda1 GM |
157 | |
158 | /* | |
159 | EatChar - consumes the next character in the input. | |
160 | */ | |
161 | ||
162 | static void EatChar (void); | |
163 | ||
164 | /* | |
165 | IsWhite - returns TRUE if, ch, is a space or a tab. | |
166 | */ | |
167 | ||
9525daf0 | 168 | static bool IsWhite (char ch); |
fbd2eda1 GM |
169 | |
170 | /* | |
171 | SkipComments - consumes comments. | |
172 | */ | |
173 | ||
174 | static void SkipComments (void); | |
175 | ||
176 | /* | |
177 | WriteToken - | |
178 | */ | |
179 | ||
180 | static void WriteToken (void); | |
181 | ||
182 | /* | |
183 | Init - initialize the modules global variables. | |
184 | */ | |
185 | ||
186 | static void Init (void); | |
187 | ||
188 | ||
189 | /* | |
190 | EatChar - consumes the next character in the input. | |
191 | */ | |
192 | ||
193 | static void EatChar (void) | |
194 | { | |
195 | if ((PushBackInput_GetCh (f)) == ASCII_nul) | |
196 | {} /* empty. */ | |
197 | } | |
198 | ||
199 | ||
200 | /* | |
201 | IsWhite - returns TRUE if, ch, is a space or a tab. | |
202 | */ | |
203 | ||
9525daf0 | 204 | static bool IsWhite (char ch) |
fbd2eda1 GM |
205 | { |
206 | return ((ch == ' ') || (ch == ASCII_tab)) || (ch == ASCII_lf); | |
207 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
208 | __builtin_unreachable (); | |
209 | } | |
210 | ||
211 | ||
212 | /* | |
213 | SkipComments - consumes comments. | |
214 | */ | |
215 | ||
216 | static void SkipComments (void) | |
217 | { | |
218 | bnflex_SkipWhite (); | |
219 | while ((bnflex_PutChar (bnflex_GetChar ())) == '-') | |
220 | { | |
221 | if (((bnflex_GetChar ()) == '-') && ((bnflex_PutChar (bnflex_GetChar ())) == '-')) | |
222 | { | |
223 | /* found comment, skip it */ | |
224 | bnflex_SkipUntilEoln (); | |
225 | bnflex_SkipWhite (); | |
226 | } | |
227 | else | |
228 | { | |
229 | /* no second '-' found thus restore first '-' */ | |
230 | if ((bnflex_PutChar ('-')) == '-') | |
231 | {} /* empty. */ | |
232 | return ; | |
233 | } | |
234 | } | |
235 | } | |
236 | ||
237 | ||
238 | /* | |
239 | WriteToken - | |
240 | */ | |
241 | ||
242 | static void WriteToken (void) | |
243 | { | |
244 | NameKey_WriteKey (CurrentToken); | |
245 | StdIO_Write (' '); | |
246 | } | |
247 | ||
248 | ||
249 | /* | |
250 | Init - initialize the modules global variables. | |
251 | */ | |
252 | ||
253 | static void Init (void) | |
254 | { | |
255 | typedef struct Init__T1_a Init__T1; | |
256 | ||
257 | struct Init__T1_a { char array[1+1]; }; | |
258 | Init__T1 a; | |
259 | ||
260 | SymbolKey_InitTree (&ReservedWords); | |
9525daf0 | 261 | Debugging = false; |
fbd2eda1 GM |
262 | a.array[0] = ASCII_nul; |
263 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) &a.array[0], 1), ((unsigned int) (bnflex_eoftok))); | |
264 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "%", 1), ((unsigned int) (bnflex_codetok))); | |
265 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) ":=", 2), ((unsigned int) (bnflex_lbecomestok))); | |
266 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "=:", 2), ((unsigned int) (bnflex_rbecomestok))); | |
267 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "|", 1), ((unsigned int) (bnflex_bartok))); | |
268 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "[", 1), ((unsigned int) (bnflex_lsparatok))); | |
269 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "]", 1), ((unsigned int) (bnflex_rsparatok))); | |
270 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "{", 1), ((unsigned int) (bnflex_lcparatok))); | |
271 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "}", 1), ((unsigned int) (bnflex_rcparatok))); | |
272 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "(", 1), ((unsigned int) (bnflex_lparatok))); | |
273 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) ")", 1), ((unsigned int) (bnflex_rparatok))); | |
274 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "<", 1), ((unsigned int) (bnflex_lesstok))); | |
275 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) ">", 1), ((unsigned int) (bnflex_gretok))); | |
276 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "error", 5), ((unsigned int) (bnflex_errortok))); | |
277 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "tokenfunc", 9), ((unsigned int) (bnflex_tfunctok))); | |
278 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "symfunc", 7), ((unsigned int) (bnflex_symfunctok))); | |
279 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "'", 1), ((unsigned int) (bnflex_squotetok))); | |
280 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "\"", 1), ((unsigned int) (bnflex_dquotetok))); | |
281 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "module", 6), ((unsigned int) (bnflex_moduletok))); | |
282 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "begin", 5), ((unsigned int) (bnflex_begintok))); | |
283 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "rules", 5), ((unsigned int) (bnflex_rulestok))); | |
284 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "end", 3), ((unsigned int) (bnflex_endtok))); | |
285 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "declaration", 11), ((unsigned int) (bnflex_declarationtok))); | |
286 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "token", 5), ((unsigned int) (bnflex_tokentok))); | |
287 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "special", 7), ((unsigned int) (bnflex_specialtok))); | |
288 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "first", 5), ((unsigned int) (bnflex_firsttok))); | |
289 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "follow", 6), ((unsigned int) (bnflex_followtok))); | |
290 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "epsilon", 7), ((unsigned int) (bnflex_epsilontok))); | |
291 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "BNF", 3), ((unsigned int) (bnflex_BNFtok))); | |
292 | SymbolKey_PutSymKey (ReservedWords, NameKey_MakeKey ((const char *) "FNB", 3), ((unsigned int) (bnflex_FNBtok))); | |
293 | CurrentToken = NameKey_NulName; | |
294 | CurrentType = bnflex_identtok; | |
9525daf0 | 295 | InQuote = false; |
fbd2eda1 GM |
296 | } |
297 | ||
298 | ||
299 | /* | |
300 | OpenSource - Attempts to open the source file, a. | |
301 | The success of the operation is returned. | |
302 | */ | |
303 | ||
9525daf0 | 304 | extern "C" bool bnflex_OpenSource (const char *a_, unsigned int _a_high) |
fbd2eda1 GM |
305 | { |
306 | char a[_a_high+1]; | |
307 | ||
308 | /* make a local copy of each unbounded array. */ | |
309 | memcpy (a, a_, _a_high+1); | |
310 | ||
311 | f = PushBackInput_Open ((const char *) a, _a_high); | |
312 | return FIO_IsNoError (f); | |
313 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
314 | __builtin_unreachable (); | |
315 | } | |
316 | ||
317 | ||
318 | /* | |
319 | CloseSource - Closes the current open file. | |
320 | */ | |
321 | ||
322 | extern "C" void bnflex_CloseSource (void) | |
323 | { | |
324 | PushBackInput_Close (f); | |
325 | } | |
326 | ||
327 | ||
328 | /* | |
329 | GetChar - returns the current character on the input stream. | |
330 | */ | |
331 | ||
332 | extern "C" char bnflex_GetChar (void) | |
333 | { | |
334 | return PushBackInput_GetCh (f); | |
335 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
336 | __builtin_unreachable (); | |
337 | } | |
338 | ||
339 | ||
340 | /* | |
341 | PutChar - pushes a character onto the push back stack, it also | |
342 | returns the character which has been pushed. | |
343 | */ | |
344 | ||
345 | extern "C" char bnflex_PutChar (char ch) | |
346 | { | |
347 | return PushBackInput_PutCh (ch); | |
348 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
349 | __builtin_unreachable (); | |
350 | } | |
351 | ||
352 | ||
353 | /* | |
354 | SymIs - if t is equal to the current token the next token is read | |
355 | and true is returned, otherwise false is returned. | |
356 | */ | |
357 | ||
9525daf0 | 358 | extern "C" bool bnflex_SymIs (bnflex_TokenType t) |
fbd2eda1 GM |
359 | { |
360 | if (CurrentType == t) | |
361 | { | |
362 | bnflex_AdvanceToken (); | |
9525daf0 | 363 | return true; |
fbd2eda1 GM |
364 | } |
365 | else | |
366 | { | |
9525daf0 | 367 | return false; |
fbd2eda1 GM |
368 | } |
369 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
370 | __builtin_unreachable (); | |
371 | } | |
372 | ||
373 | ||
374 | /* | |
375 | IsSym - returns the result of the comparison between the current token | |
376 | type and t. | |
377 | */ | |
378 | ||
9525daf0 | 379 | extern "C" bool bnflex_IsSym (bnflex_TokenType t) |
fbd2eda1 GM |
380 | { |
381 | return t == CurrentType; | |
382 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
383 | __builtin_unreachable (); | |
384 | } | |
385 | ||
386 | ||
387 | /* | |
388 | GetCurrentTokenType - returns the type of current token. | |
389 | */ | |
390 | ||
391 | extern "C" bnflex_TokenType bnflex_GetCurrentTokenType (void) | |
392 | { | |
393 | return CurrentType; | |
394 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
395 | __builtin_unreachable (); | |
396 | } | |
397 | ||
398 | ||
399 | /* | |
400 | GetCurrentToken - returns the NameKey of the current token. | |
401 | */ | |
402 | ||
403 | extern "C" NameKey_Name bnflex_GetCurrentToken (void) | |
404 | { | |
405 | return CurrentToken; | |
406 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
407 | __builtin_unreachable (); | |
408 | } | |
409 | ||
410 | ||
411 | /* | |
412 | SkipUntilWhite - skips all characters until white space is seen. | |
413 | */ | |
414 | ||
415 | extern "C" void bnflex_SkipUntilWhite (void) | |
416 | { | |
417 | while (((! (IsWhite (bnflex_PutChar (bnflex_GetChar ())))) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_nul)) || ((bnflex_PutChar (bnflex_GetChar ())) == ASCII_lf)) | |
418 | { | |
419 | EatChar (); | |
420 | } | |
421 | } | |
422 | ||
423 | ||
424 | /* | |
425 | SkipWhite - skips all white space. | |
426 | */ | |
427 | ||
428 | extern "C" void bnflex_SkipWhite (void) | |
429 | { | |
430 | while (IsWhite (bnflex_PutChar (bnflex_GetChar ()))) | |
431 | { | |
432 | EatChar (); | |
433 | } | |
434 | } | |
435 | ||
436 | ||
437 | /* | |
438 | SkipUntilEoln - skips until a lf is seen. It consumes the lf. | |
439 | */ | |
440 | ||
441 | extern "C" void bnflex_SkipUntilEoln (void) | |
442 | { | |
443 | while (((bnflex_PutChar (bnflex_GetChar ())) != ASCII_lf) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_nul)) | |
444 | { | |
445 | EatChar (); | |
446 | } | |
447 | if ((bnflex_PutChar (bnflex_GetChar ())) == ASCII_lf) | |
448 | { | |
449 | EatChar (); | |
450 | } | |
451 | } | |
452 | ||
453 | ||
454 | /* | |
455 | AdvanceToken - advances to the next token. | |
456 | */ | |
457 | ||
458 | extern "C" void bnflex_AdvanceToken (void) | |
459 | { | |
460 | typedef struct AdvanceToken__T2_a AdvanceToken__T2; | |
461 | ||
462 | struct AdvanceToken__T2_a { char array[MaxNameLength+1]; }; | |
463 | AdvanceToken__T2 a; | |
464 | unsigned int i; | |
465 | ||
466 | i = 0; | |
467 | if (InQuote) | |
468 | { | |
469 | if (CurrentType == bnflex_literaltok) | |
470 | { | |
471 | if ((bnflex_PutChar (bnflex_GetChar ())) == QuoteChar) | |
472 | { | |
473 | a.array[i] = bnflex_GetChar (); | |
9525daf0 | 474 | InQuote = false; |
fbd2eda1 GM |
475 | i += 1; |
476 | a.array[i] = ASCII_nul; | |
477 | CurrentToken = NameKey_MakeKey ((const char *) &a.array[0], MaxNameLength); | |
478 | CurrentType = (bnflex_TokenType) (SymbolKey_GetSymKey (ReservedWords, CurrentToken)); | |
479 | } | |
480 | else | |
481 | { | |
482 | if (QuoteChar == '"') | |
483 | { | |
484 | PushBackInput_WarnError ((const char *) "missing \" at the end of a literal", 33); | |
485 | } | |
486 | else | |
487 | { | |
488 | PushBackInput_WarnError ((const char *) "missing ' at the end of a literal", 33); | |
489 | } | |
9525daf0 | 490 | InQuote = false; /* to avoid a contineous list of the same error message */ |
fbd2eda1 GM |
491 | } |
492 | } | |
493 | else | |
494 | { | |
495 | while ((((i < MaxNameLength) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_nul)) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_lf)) && ((bnflex_PutChar (bnflex_GetChar ())) != QuoteChar)) | |
496 | { | |
497 | a.array[i] = bnflex_GetChar (); | |
498 | i += 1; | |
499 | } | |
500 | if ((bnflex_PutChar (bnflex_GetChar ())) == QuoteChar) | |
501 | { | |
502 | CurrentType = bnflex_literaltok; | |
503 | a.array[i] = ASCII_nul; | |
504 | CurrentToken = NameKey_MakeKey ((const char *) &a.array[0], MaxNameLength); | |
505 | } | |
506 | else | |
507 | { | |
508 | if (QuoteChar == '"') | |
509 | { | |
510 | PushBackInput_WarnError ((const char *) "missing \" at the end of a literal", 33); | |
511 | } | |
512 | else | |
513 | { | |
514 | PushBackInput_WarnError ((const char *) "missing ' at the end of a literal", 33); | |
515 | } | |
9525daf0 | 516 | InQuote = false; /* to avoid a contineous list of the same error message */ |
fbd2eda1 GM |
517 | } |
518 | } | |
519 | } | |
520 | else | |
521 | { | |
522 | SkipComments (); | |
523 | if (((bnflex_PutChar (bnflex_GetChar ())) == '"') || ((bnflex_PutChar (bnflex_GetChar ())) == '\'')) | |
524 | { | |
525 | a.array[i] = bnflex_GetChar (); | |
526 | QuoteChar = a.array[i]; | |
527 | i += 1; | |
9525daf0 | 528 | InQuote = true; |
fbd2eda1 GM |
529 | a.array[i] = ASCII_nul; |
530 | CurrentToken = NameKey_MakeKey ((const char *) &a.array[0], MaxNameLength); | |
531 | CurrentType = (bnflex_TokenType) (SymbolKey_GetSymKey (ReservedWords, CurrentToken)); | |
532 | } | |
533 | else | |
534 | { | |
535 | while (((((i < MaxNameLength) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_nul)) && ((bnflex_PutChar (bnflex_GetChar ())) != ASCII_lf)) && ((bnflex_PutChar (bnflex_GetChar ())) != QuoteChar)) && (! (IsWhite (bnflex_PutChar (bnflex_GetChar ()))))) | |
536 | { | |
537 | a.array[i] = bnflex_GetChar (); | |
538 | i += 1; | |
539 | } | |
540 | a.array[i] = ASCII_nul; | |
541 | CurrentToken = NameKey_MakeKey ((const char *) &a.array[0], MaxNameLength); | |
542 | if ((SymbolKey_GetSymKey (ReservedWords, CurrentToken)) == 0) | |
543 | { | |
544 | CurrentType = bnflex_identtok; | |
545 | } | |
546 | else | |
547 | { | |
548 | CurrentType = (bnflex_TokenType) (SymbolKey_GetSymKey (ReservedWords, CurrentToken)); | |
549 | } | |
550 | } | |
551 | } | |
552 | if (Debugging) | |
553 | { | |
554 | WriteToken (); | |
555 | } | |
556 | } | |
557 | ||
558 | ||
559 | /* | |
560 | IsReserved - returns TRUE if the name is a reserved word. | |
561 | */ | |
562 | ||
9525daf0 | 563 | extern "C" bool bnflex_IsReserved (NameKey_Name name) |
fbd2eda1 GM |
564 | { |
565 | return (SymbolKey_GetSymKey (ReservedWords, name)) != 0; | |
566 | /* static analysis guarentees a RETURN statement will be used before here. */ | |
567 | __builtin_unreachable (); | |
568 | } | |
569 | ||
570 | ||
571 | /* | |
572 | PushBackToken - pushes a token back onto input. | |
573 | */ | |
574 | ||
575 | extern "C" void bnflex_PushBackToken (NameKey_Name t) | |
576 | { | |
577 | typedef struct PushBackToken__T3_a PushBackToken__T3; | |
578 | ||
579 | struct PushBackToken__T3_a { char array[MaxNameLength+1]; }; | |
580 | PushBackToken__T3 a; | |
581 | ||
582 | NameKey_GetKey (t, (char *) &a.array[0], MaxNameLength); | |
583 | PushBackInput_PutString ((const char *) &a.array[0], MaxNameLength); | |
584 | } | |
585 | ||
586 | ||
587 | /* | |
588 | SetDebugging - sets the debugging flag. | |
589 | */ | |
590 | ||
9525daf0 | 591 | extern "C" void bnflex_SetDebugging (bool flag) |
fbd2eda1 GM |
592 | { |
593 | Debugging = flag; | |
594 | } | |
595 | ||
596 | extern "C" void _M2_bnflex_init (__attribute__((unused)) int argc,__attribute__((unused)) char *argv[],__attribute__((unused)) char *envp[]) | |
597 | { | |
598 | Init (); | |
599 | } | |
600 | ||
601 | extern "C" void _M2_bnflex_fini (__attribute__((unused)) int argc,__attribute__((unused)) char *argv[],__attribute__((unused)) char *envp[]) | |
602 | { | |
603 | } |