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comparison src/sdl/expr-lex.cpp @ 28:2efb971df515

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bringing in SDL package
author Robert McIntyre <rlm@mit.edu>
date Sun, 04 Mar 2012 21:06:50 -0600
parents f9f4f1b99eed
children
comparison
equal deleted inserted replaced
27:b970226568d2 28:2efb971df515
1 #line 2 "expr-lex.cpp"
2 /* A lexical scanner generated by flex */
3
4 /* Scanner skeleton version:
5 * $Header: /cvsroot/vba/VisualBoyAdvance/src/expr-lex.cpp,v 1.2 2003/06/06 14:17:21 forgotten Exp $
6 */
7
8 #define FLEX_SCANNER
9 #define YY_FLEX_MAJOR_VERSION 2
10 #define YY_FLEX_MINOR_VERSION 5
11
12 #include <stdio.h>
13 #ifdef __GNUC__
14 #include <unistd.h>
15 #endif
16
17
18 /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
19 #ifdef c_plusplus
20 #ifndef __cplusplus
21 #define __cplusplus
22 #endif
23 #endif
24
25
26 #ifdef __cplusplus
27
28 #include <stdlib.h>
29
30 /* Use prototypes in function declarations. */
31 #define YY_USE_PROTOS
32
33 /* The "const" storage-class-modifier is valid. */
34 #define YY_USE_CONST
35
36 #else /* ! __cplusplus */
37
38 #if __STDC__
39
40 #define YY_USE_PROTOS
41 #define YY_USE_CONST
42
43 #endif /* __STDC__ */
44 #endif /* ! __cplusplus */
45
46 #ifdef __TURBOC__
47 #pragma warn -rch
48 #pragma warn -use
49 #include <io.h>
50 #include <stdlib.h>
51 #define YY_USE_CONST
52 #define YY_USE_PROTOS
53 #endif
54
55 #ifdef YY_USE_CONST
56 #define yyconst const
57 #else
58 #define yyconst
59 #endif
60
61
62 #ifdef YY_USE_PROTOS
63 #define YY_PROTO(proto) proto
64 #else
65 #define YY_PROTO(proto) ()
66 #endif
67
68 /* Returned upon end-of-file. */
69 #define YY_NULL 0
70
71 /* Promotes a possibly negative, possibly signed char to an unsigned
72 * integer for use as an array index. If the signed char is negative,
73 * we want to instead treat it as an 8-bit unsigned char, hence the
74 * double cast.
75 */
76 #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
77
78 /* Enter a start condition. This macro really ought to take a parameter,
79 * but we do it the disgusting crufty way forced on us by the ()-less
80 * definition of BEGIN.
81 */
82 #define BEGIN yy_start = 1 + 2 *
83
84 /* Translate the current start state into a value that can be later handed
85 * to BEGIN to return to the state. The YYSTATE alias is for lex
86 * compatibility.
87 */
88 #define YY_START ((yy_start - 1) / 2)
89 #define YYSTATE YY_START
90
91 /* Action number for EOF rule of a given start state. */
92 #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
93
94 /* Special action meaning "start processing a new file". */
95 #define YY_NEW_FILE yyrestart( yyin )
96
97 #define YY_END_OF_BUFFER_CHAR 0
98
99 /* Size of default input buffer. */
100 #define YY_BUF_SIZE 16384
101
102 typedef struct yy_buffer_state *YY_BUFFER_STATE;
103
104 extern int yyleng;
105 extern FILE *yyin, *yyout;
106
107 #define EOB_ACT_CONTINUE_SCAN 0
108 #define EOB_ACT_END_OF_FILE 1
109 #define EOB_ACT_LAST_MATCH 2
110
111 /* The funky do-while in the following #define is used to turn the definition
112 * int a single C statement (which needs a semi-colon terminator). This
113 * avoids problems with code like:
114 *
115 * if ( condition_holds )
116 * yyless( 5 );
117 * else
118 * do_something_else();
119 *
120 * Prior to using the do-while the compiler would get upset at the
121 * "else" because it interpreted the "if" statement as being all
122 * done when it reached the ';' after the yyless() call.
123 */
124
125 /* Return all but the first 'n' matched characters back to the input stream. */
126
127 #define yyless(n) \
128 do \
129 { \
130 /* Undo effects of setting up yytext. */ \
131 *yy_cp = yy_hold_char; \
132 YY_RESTORE_YY_MORE_OFFSET \
133 yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
134 YY_DO_BEFORE_ACTION; /* set up yytext again */ \
135 } \
136 while ( 0 )
137
138 #define unput(c) yyunput( c, yytext_ptr )
139
140 /* The following is because we cannot portably get our hands on size_t
141 * (without autoconf's help, which isn't available because we want
142 * flex-generated scanners to compile on their own).
143 */
144 typedef unsigned int yy_size_t;
145
146
147 struct yy_buffer_state
148 {
149 FILE *yy_input_file;
150
151 char *yy_ch_buf; /* input buffer */
152 char *yy_buf_pos; /* current position in input buffer */
153
154 /* Size of input buffer in bytes, not including room for EOB
155 * characters.
156 */
157 yy_size_t yy_buf_size;
158
159 /* Number of characters read into yy_ch_buf, not including EOB
160 * characters.
161 */
162 int yy_n_chars;
163
164 /* Whether we "own" the buffer - i.e., we know we created it,
165 * and can realloc() it to grow it, and should free() it to
166 * delete it.
167 */
168 int yy_is_our_buffer;
169
170 /* Whether this is an "interactive" input source; if so, and
171 * if we're using stdio for input, then we want to use getc()
172 * instead of fread(), to make sure we stop fetching input after
173 * each newline.
174 */
175 int yy_is_interactive;
176
177 /* Whether we're considered to be at the beginning of a line.
178 * If so, '^' rules will be active on the next match, otherwise
179 * not.
180 */
181 int yy_at_bol;
182
183 /* Whether to try to fill the input buffer when we reach the
184 * end of it.
185 */
186 int yy_fill_buffer;
187
188 int yy_buffer_status;
189 #define YY_BUFFER_NEW 0
190 #define YY_BUFFER_NORMAL 1
191 /* When an EOF's been seen but there's still some text to process
192 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
193 * shouldn't try reading from the input source any more. We might
194 * still have a bunch of tokens to match, though, because of
195 * possible backing-up.
196 *
197 * When we actually see the EOF, we change the status to "new"
198 * (via yyrestart()), so that the user can continue scanning by
199 * just pointing yyin at a new input file.
200 */
201 #define YY_BUFFER_EOF_PENDING 2
202 };
203
204 static YY_BUFFER_STATE yy_current_buffer = 0;
205
206 /* We provide macros for accessing buffer states in case in the
207 * future we want to put the buffer states in a more general
208 * "scanner state".
209 */
210 #define YY_CURRENT_BUFFER yy_current_buffer
211
212
213 /* yy_hold_char holds the character lost when yytext is formed. */
214 static char yy_hold_char;
215
216 static int yy_n_chars; /* number of characters read into yy_ch_buf */
217
218
219 int yyleng;
220
221 /* Points to current character in buffer. */
222 static char *yy_c_buf_p = (char *) 0;
223 static int yy_init = 1; /* whether we need to initialize */
224 static int yy_start = 0; /* start state number */
225
226 /* Flag which is used to allow yywrap()'s to do buffer switches
227 * instead of setting up a fresh yyin. A bit of a hack ...
228 */
229 static int yy_did_buffer_switch_on_eof;
230
231 void yyrestart YY_PROTO(( FILE *input_file ));
232
233 void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
234 void yy_load_buffer_state YY_PROTO(( void ));
235 YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
236 void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
237 void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
238 void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
239 #define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )
240
241 YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
242 YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
243 YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));
244
245 static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
246 static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
247 static void yy_flex_free YY_PROTO(( void * ));
248
249 #define yy_new_buffer yy_create_buffer
250
251 #define yy_set_interactive(is_interactive) \
252 { \
253 if ( ! yy_current_buffer ) \
254 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
255 yy_current_buffer->yy_is_interactive = is_interactive; \
256 }
257
258 #define yy_set_bol(at_bol) \
259 { \
260 if ( ! yy_current_buffer ) \
261 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
262 yy_current_buffer->yy_at_bol = at_bol; \
263 }
264
265 #define YY_AT_BOL() (yy_current_buffer->yy_at_bol)
266
267
268 #define yywrap() 1
269 #define YY_SKIP_YYWRAP
270 typedef unsigned char YY_CHAR;
271 FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
272 typedef int yy_state_type;
273 extern char *yytext;
274 #define yytext_ptr yytext
275
276 static yy_state_type yy_get_previous_state YY_PROTO(( void ));
277 static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
278 static int yy_get_next_buffer YY_PROTO(( void ));
279 static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));
280
281 /* Done after the current pattern has been matched and before the
282 * corresponding action - sets up yytext.
283 */
284 #define YY_DO_BEFORE_ACTION \
285 yytext_ptr = yy_bp; \
286 yyleng = (int) (yy_cp - yy_bp); \
287 yy_hold_char = *yy_cp; \
288 *yy_cp = '\0'; \
289 yy_c_buf_p = yy_cp;
290
291 #define YY_NUM_RULES 10
292 #define YY_END_OF_BUFFER 11
293 static yyconst short int yy_accept[24] =
294 { 0,
295 0, 0, 11, 9, 8, 8, 6, 7, 9, 4,
296 3, 2, 2, 8, 5, 3, 2, 2, 2, 2,
297 2, 1, 0
298 } ;
299
300 static yyconst int yy_ec[256] =
301 { 0,
302 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
303 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
304 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
305 1, 2, 1, 1, 1, 1, 1, 4, 1, 1,
306 1, 5, 1, 1, 6, 7, 1, 8, 8, 8,
307 8, 8, 8, 8, 8, 8, 8, 1, 1, 1,
308 1, 9, 1, 1, 10, 10, 10, 10, 10, 10,
309 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
310 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
311 1, 1, 1, 1, 10, 1, 10, 10, 10, 10,
312
313 11, 12, 10, 10, 13, 10, 10, 10, 10, 10,
314 14, 10, 10, 10, 15, 10, 10, 10, 10, 10,
315 10, 16, 1, 1, 1, 1, 1, 1, 1, 1,
316 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
317 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
318 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
319 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
320 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
321 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
322 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
323
324 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
325 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
326 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
327 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
328 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
329 1, 1, 1, 1, 1
330 } ;
331
332 static yyconst int yy_meta[17] =
333 { 0,
334 1, 1, 1, 1, 1, 1, 1, 2, 1, 2,
335 2, 2, 2, 2, 2, 2
336 } ;
337
338 static yyconst short int yy_base[25] =
339 { 0,
340 0, 0, 32, 33, 15, 17, 33, 33, 22, 33,
341 22, 0, 16, 19, 33, 20, 0, 11, 15, 11,
342 12, 0, 33, 21
343 } ;
344
345 static yyconst short int yy_def[25] =
346 { 0,
347 23, 1, 23, 23, 23, 23, 23, 23, 23, 23,
348 23, 24, 24, 23, 23, 23, 24, 24, 24, 24,
349 24, 24, 0, 23
350 } ;
351
352 static yyconst short int yy_nxt[50] =
353 { 0,
354 4, 5, 6, 7, 8, 9, 10, 11, 4, 12,
355 12, 12, 12, 12, 13, 12, 14, 14, 14, 14,
356 14, 14, 17, 22, 21, 20, 19, 16, 18, 16,
357 15, 23, 3, 23, 23, 23, 23, 23, 23, 23,
358 23, 23, 23, 23, 23, 23, 23, 23, 23
359 } ;
360
361 static yyconst short int yy_chk[50] =
362 { 0,
363 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
364 1, 1, 1, 1, 1, 1, 5, 5, 6, 6,
365 14, 14, 24, 21, 20, 19, 18, 16, 13, 11,
366 9, 3, 23, 23, 23, 23, 23, 23, 23, 23,
367 23, 23, 23, 23, 23, 23, 23, 23, 23
368 } ;
369
370 static yy_state_type yy_last_accepting_state;
371 static char *yy_last_accepting_cpos;
372
373 /* The intent behind this definition is that it'll catch
374 * any uses of REJECT which flex missed.
375 */
376 #define REJECT reject_used_but_not_detected
377 #define yymore() yymore_used_but_not_detected
378 #define YY_MORE_ADJ 0
379 #define YY_RESTORE_YY_MORE_OFFSET
380 char *yytext;
381 #line 1 "expr.l"
382 #define INITIAL 0
383 #line 2 "expr.l"
384 #include "expr.cpp.h"
385
386 #ifndef __GNUC__
387 #include <io.h>
388 #define isatty _isatty
389 #endif
390
391 char *exprString;
392 int exprCol;
393
394 #define YY_INPUT(buf,result,max_size) \
395 { \
396 int c = *exprString++; \
397 exprCol++;\
398 result = (c == 0) ? YY_NULL : (buf[0] = c, 1); \
399 }
400 #define YY_MAIN 0
401 #line 400 "expr-lex.cpp"
402
403 /* Macros after this point can all be overridden by user definitions in
404 * section 1.
405 */
406
407 #ifndef YY_SKIP_YYWRAP
408 #ifdef __cplusplus
409 extern "C" int yywrap YY_PROTO(( void ));
410 #else
411 extern int yywrap YY_PROTO(( void ));
412 #endif
413 #endif
414
415 #ifndef YY_NO_UNPUT
416 static void yyunput YY_PROTO(( int c, char *buf_ptr ));
417 #endif
418
419 #ifndef yytext_ptr
420 static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
421 #endif
422
423 #ifdef YY_NEED_STRLEN
424 static int yy_flex_strlen YY_PROTO(( yyconst char * ));
425 #endif
426
427 #ifndef YY_NO_INPUT
428 #ifdef __cplusplus
429 static int yyinput YY_PROTO(( void ));
430 #else
431 static int input YY_PROTO(( void ));
432 #endif
433 #endif
434
435 #if YY_STACK_USED
436 static int yy_start_stack_ptr = 0;
437 static int yy_start_stack_depth = 0;
438 static int *yy_start_stack = 0;
439 #ifndef YY_NO_PUSH_STATE
440 static void yy_push_state YY_PROTO(( int new_state ));
441 #endif
442 #ifndef YY_NO_POP_STATE
443 static void yy_pop_state YY_PROTO(( void ));
444 #endif
445 #ifndef YY_NO_TOP_STATE
446 static int yy_top_state YY_PROTO(( void ));
447 #endif
448
449 #else
450 #define YY_NO_PUSH_STATE 1
451 #define YY_NO_POP_STATE 1
452 #define YY_NO_TOP_STATE 1
453 #endif
454
455 #ifdef YY_MALLOC_DECL
456 YY_MALLOC_DECL
457 #else
458 #if __STDC__
459 #ifndef __cplusplus
460 #include <stdlib.h>
461 #endif
462 #else
463 /* Just try to get by without declaring the routines. This will fail
464 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
465 * or sizeof(void*) != sizeof(int).
466 */
467 #endif
468 #endif
469
470 /* Amount of stuff to slurp up with each read. */
471 #ifndef YY_READ_BUF_SIZE
472 #define YY_READ_BUF_SIZE 8192
473 #endif
474
475 /* Copy whatever the last rule matched to the standard output. */
476
477 #ifndef ECHO
478 /* This used to be an fputs(), but since the string might contain NUL's,
479 * we now use fwrite().
480 */
481 #define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
482 #endif
483
484 /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
485 * is returned in "result".
486 */
487 #ifndef YY_INPUT
488 #define YY_INPUT(buf,result,max_size) \
489 if ( yy_current_buffer->yy_is_interactive ) \
490 { \
491 int c = '*', n; \
492 for ( n = 0; n < max_size && \
493 (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
494 buf[n] = (char) c; \
495 if ( c == '\n' ) \
496 buf[n++] = (char) c; \
497 if ( c == EOF && ferror( yyin ) ) \
498 YY_FATAL_ERROR( "input in flex scanner failed" ); \
499 result = n; \
500 } \
501 else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
502 && ferror( yyin ) ) \
503 YY_FATAL_ERROR( "input in flex scanner failed" );
504 #endif
505
506 /* No semi-colon after return; correct usage is to write "yyterminate();" -
507 * we don't want an extra ';' after the "return" because that will cause
508 * some compilers to complain about unreachable statements.
509 */
510 #ifndef yyterminate
511 #define yyterminate() return YY_NULL
512 #endif
513
514 /* Number of entries by which start-condition stack grows. */
515 #ifndef YY_START_STACK_INCR
516 #define YY_START_STACK_INCR 25
517 #endif
518
519 /* Report a fatal error. */
520 #ifndef YY_FATAL_ERROR
521 #define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
522 #endif
523
524 /* Default declaration of generated scanner - a define so the user can
525 * easily add parameters.
526 */
527 #ifndef YY_DECL
528 #define YY_DECL int yylex YY_PROTO(( void ))
529 #endif
530
531 /* Code executed at the beginning of each rule, after yytext and yyleng
532 * have been set up.
533 */
534 #ifndef YY_USER_ACTION
535 #define YY_USER_ACTION
536 #endif
537
538 /* Code executed at the end of each rule. */
539 #ifndef YY_BREAK
540 #define YY_BREAK break;
541 #endif
542
543 #define YY_RULE_SETUP \
544 YY_USER_ACTION
545
546 YY_DECL
547 {
548 register yy_state_type yy_current_state;
549 register char *yy_cp = NULL, *yy_bp = NULL;
550 register int yy_act;
551
552 #line 31 "expr.l"
553
554
555 #line 554 "expr-lex.cpp"
556
557 if ( yy_init )
558 {
559 yy_init = 0;
560
561 #ifdef YY_USER_INIT
562 YY_USER_INIT;
563 #endif
564
565 if ( ! yy_start )
566 yy_start = 1; /* first start state */
567
568 if ( ! yyin )
569 yyin = stdin;
570
571 if ( ! yyout )
572 yyout = stdout;
573
574 if ( ! yy_current_buffer )
575 yy_current_buffer =
576 yy_create_buffer( yyin, YY_BUF_SIZE );
577
578 yy_load_buffer_state();
579 }
580
581 while ( 1 ) /* loops until end-of-file is reached */
582 {
583 yy_cp = yy_c_buf_p;
584
585 /* Support of yytext. */
586 *yy_cp = yy_hold_char;
587
588 /* yy_bp points to the position in yy_ch_buf of the start of
589 * the current run.
590 */
591 yy_bp = yy_cp;
592
593 yy_current_state = yy_start;
594 yy_match:
595 do
596 {
597 register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
598 if ( yy_accept[yy_current_state] )
599 {
600 yy_last_accepting_state = yy_current_state;
601 yy_last_accepting_cpos = yy_cp;
602 }
603 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
604 {
605 yy_current_state = (int) yy_def[yy_current_state];
606 if ( yy_current_state >= 24 )
607 yy_c = yy_meta[(unsigned int) yy_c];
608 }
609 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
610 ++yy_cp;
611 }
612 while ( yy_base[yy_current_state] != 33 );
613
614 yy_find_action:
615 yy_act = yy_accept[yy_current_state];
616 if ( yy_act == 0 )
617 { /* have to back up */
618 yy_cp = yy_last_accepting_cpos;
619 yy_current_state = yy_last_accepting_state;
620 yy_act = yy_accept[yy_current_state];
621 }
622
623 YY_DO_BEFORE_ACTION;
624
625
626 do_action: /* This label is used only to access EOF actions. */
627
628
629 switch ( yy_act )
630 { /* beginning of action switch */
631 case 0: /* must back up */
632 /* undo the effects of YY_DO_BEFORE_ACTION */
633 *yy_cp = yy_hold_char;
634 yy_cp = yy_last_accepting_cpos;
635 yy_current_state = yy_last_accepting_state;
636 goto yy_find_action;
637
638 case 1:
639 YY_RULE_SETUP
640 #line 33 "expr.l"
641 {
642 return TOKEN_SIZEOF;
643 }
644 YY_BREAK
645 case 2:
646 YY_RULE_SETUP
647 #line 37 "expr.l"
648 {
649 return TOKEN_IDENTIFIER;
650 }
651 YY_BREAK
652 case 3:
653 YY_RULE_SETUP
654 #line 41 "expr.l"
655 {
656 return TOKEN_NUMBER;
657 }
658 YY_BREAK
659 case 4:
660 YY_RULE_SETUP
661 #line 45 "expr.l"
662 {
663 return TOKEN_DOT;
664 }
665 YY_BREAK
666 case 5:
667 YY_RULE_SETUP
668 #line 49 "expr.l"
669 {
670 return TOKEN_ARROW;
671 }
672 YY_BREAK
673 case 6:
674 YY_RULE_SETUP
675 #line 53 "expr.l"
676 {
677 return TOKEN_ADDR;
678 }
679 YY_BREAK
680 case 7:
681 YY_RULE_SETUP
682 #line 57 "expr.l"
683 {
684 return TOKEN_STAR;
685 }
686 YY_BREAK
687 case 8:
688 YY_RULE_SETUP
689 #line 61 "expr.l"
690
691 YY_BREAK
692 case 9:
693 YY_RULE_SETUP
694 #line 63 "expr.l"
695 return *yytext;
696 YY_BREAK
697 case 10:
698 YY_RULE_SETUP
699 #line 65 "expr.l"
700 ECHO;
701 YY_BREAK
702 #line 701 "expr-lex.cpp"
703 case YY_STATE_EOF(INITIAL):
704 yyterminate();
705
706 case YY_END_OF_BUFFER:
707 {
708 /* Amount of text matched not including the EOB char. */
709 int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;
710
711 /* Undo the effects of YY_DO_BEFORE_ACTION. */
712 *yy_cp = yy_hold_char;
713 YY_RESTORE_YY_MORE_OFFSET
714
715 if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW )
716 {
717 /* We're scanning a new file or input source. It's
718 * possible that this happened because the user
719 * just pointed yyin at a new source and called
720 * yylex(). If so, then we have to assure
721 * consistency between yy_current_buffer and our
722 * globals. Here is the right place to do so, because
723 * this is the first action (other than possibly a
724 * back-up) that will match for the new input source.
725 */
726 yy_n_chars = yy_current_buffer->yy_n_chars;
727 yy_current_buffer->yy_input_file = yyin;
728 yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
729 }
730
731 /* Note that here we test for yy_c_buf_p "<=" to the position
732 * of the first EOB in the buffer, since yy_c_buf_p will
733 * already have been incremented past the NUL character
734 * (since all states make transitions on EOB to the
735 * end-of-buffer state). Contrast this with the test
736 * in input().
737 */
738 if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
739 { /* This was really a NUL. */
740 yy_state_type yy_next_state;
741
742 yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;
743
744 yy_current_state = yy_get_previous_state();
745
746 /* Okay, we're now positioned to make the NUL
747 * transition. We couldn't have
748 * yy_get_previous_state() go ahead and do it
749 * for us because it doesn't know how to deal
750 * with the possibility of jamming (and we don't
751 * want to build jamming into it because then it
752 * will run more slowly).
753 */
754
755 yy_next_state = yy_try_NUL_trans( yy_current_state );
756
757 yy_bp = yytext_ptr + YY_MORE_ADJ;
758
759 if ( yy_next_state )
760 {
761 /* Consume the NUL. */
762 yy_cp = ++yy_c_buf_p;
763 yy_current_state = yy_next_state;
764 goto yy_match;
765 }
766
767 else
768 {
769 yy_cp = yy_c_buf_p;
770 goto yy_find_action;
771 }
772 }
773
774 else switch ( yy_get_next_buffer() )
775 {
776 case EOB_ACT_END_OF_FILE:
777 {
778 yy_did_buffer_switch_on_eof = 0;
779
780 if ( yywrap() )
781 {
782 /* Note: because we've taken care in
783 * yy_get_next_buffer() to have set up
784 * yytext, we can now set up
785 * yy_c_buf_p so that if some total
786 * hoser (like flex itself) wants to
787 * call the scanner after we return the
788 * YY_NULL, it'll still work - another
789 * YY_NULL will get returned.
790 */
791 yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;
792
793 yy_act = YY_STATE_EOF(YY_START);
794 goto do_action;
795 }
796
797 else
798 {
799 if ( ! yy_did_buffer_switch_on_eof )
800 YY_NEW_FILE;
801 }
802 break;
803 }
804
805 case EOB_ACT_CONTINUE_SCAN:
806 yy_c_buf_p =
807 yytext_ptr + yy_amount_of_matched_text;
808
809 yy_current_state = yy_get_previous_state();
810
811 yy_cp = yy_c_buf_p;
812 yy_bp = yytext_ptr + YY_MORE_ADJ;
813 goto yy_match;
814
815 case EOB_ACT_LAST_MATCH:
816 yy_c_buf_p =
817 &yy_current_buffer->yy_ch_buf[yy_n_chars];
818
819 yy_current_state = yy_get_previous_state();
820
821 yy_cp = yy_c_buf_p;
822 yy_bp = yytext_ptr + YY_MORE_ADJ;
823 goto yy_find_action;
824 }
825 break;
826 }
827
828 default:
829 YY_FATAL_ERROR(
830 "fatal flex scanner internal error--no action found" );
831 } /* end of action switch */
832 } /* end of scanning one token */
833 } /* end of yylex */
834
835
836 /* yy_get_next_buffer - try to read in a new buffer
837 *
838 * Returns a code representing an action:
839 * EOB_ACT_LAST_MATCH -
840 * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
841 * EOB_ACT_END_OF_FILE - end of file
842 */
843
844 static int yy_get_next_buffer()
845 {
846 register char *dest = yy_current_buffer->yy_ch_buf;
847 register char *source = yytext_ptr;
848 register int number_to_move, i;
849 int ret_val;
850
851 if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
852 YY_FATAL_ERROR(
853 "fatal flex scanner internal error--end of buffer missed" );
854
855 if ( yy_current_buffer->yy_fill_buffer == 0 )
856 { /* Don't try to fill the buffer, so this is an EOF. */
857 if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 )
858 {
859 /* We matched a single character, the EOB, so
860 * treat this as a final EOF.
861 */
862 return EOB_ACT_END_OF_FILE;
863 }
864
865 else
866 {
867 /* We matched some text prior to the EOB, first
868 * process it.
869 */
870 return EOB_ACT_LAST_MATCH;
871 }
872 }
873
874 /* Try to read more data. */
875
876 /* First move last chars to start of buffer. */
877 number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1;
878
879 for ( i = 0; i < number_to_move; ++i )
880 *(dest++) = *(source++);
881
882 if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING )
883 /* don't do the read, it's not guaranteed to return an EOF,
884 * just force an EOF
885 */
886 yy_current_buffer->yy_n_chars = yy_n_chars = 0;
887
888 else
889 {
890 int num_to_read =
891 yy_current_buffer->yy_buf_size - number_to_move - 1;
892
893 while ( num_to_read <= 0 )
894 { /* Not enough room in the buffer - grow it. */
895 #ifdef YY_USES_REJECT
896 YY_FATAL_ERROR(
897 "input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
898 #else
899
900 /* just a shorter name for the current buffer */
901 YY_BUFFER_STATE b = yy_current_buffer;
902
903 int yy_c_buf_p_offset =
904 (int) (yy_c_buf_p - b->yy_ch_buf);
905
906 if ( b->yy_is_our_buffer )
907 {
908 int new_size = b->yy_buf_size * 2;
909
910 if ( new_size <= 0 )
911 b->yy_buf_size += b->yy_buf_size / 8;
912 else
913 b->yy_buf_size *= 2;
914
915 b->yy_ch_buf = (char *)
916 /* Include room in for 2 EOB chars. */
917 yy_flex_realloc( (void *) b->yy_ch_buf,
918 b->yy_buf_size + 2 );
919 }
920 else
921 /* Can't grow it, we don't own it. */
922 b->yy_ch_buf = 0;
923
924 if ( ! b->yy_ch_buf )
925 YY_FATAL_ERROR(
926 "fatal error - scanner input buffer overflow" );
927
928 yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];
929
930 num_to_read = yy_current_buffer->yy_buf_size -
931 number_to_move - 1;
932 #endif
933 }
934
935 if ( num_to_read > YY_READ_BUF_SIZE )
936 num_to_read = YY_READ_BUF_SIZE;
937
938 /* Read in more data. */
939 YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
940 yy_n_chars, num_to_read );
941
942 yy_current_buffer->yy_n_chars = yy_n_chars;
943 }
944
945 if ( yy_n_chars == 0 )
946 {
947 if ( number_to_move == YY_MORE_ADJ )
948 {
949 ret_val = EOB_ACT_END_OF_FILE;
950 yyrestart( yyin );
951 }
952
953 else
954 {
955 ret_val = EOB_ACT_LAST_MATCH;
956 yy_current_buffer->yy_buffer_status =
957 YY_BUFFER_EOF_PENDING;
958 }
959 }
960
961 else
962 ret_val = EOB_ACT_CONTINUE_SCAN;
963
964 yy_n_chars += number_to_move;
965 yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
966 yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
967
968 yytext_ptr = &yy_current_buffer->yy_ch_buf[0];
969
970 return ret_val;
971 }
972
973
974 /* yy_get_previous_state - get the state just before the EOB char was reached */
975
976 static yy_state_type yy_get_previous_state()
977 {
978 register yy_state_type yy_current_state;
979 register char *yy_cp;
980
981 yy_current_state = yy_start;
982
983 for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
984 {
985 register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
986 if ( yy_accept[yy_current_state] )
987 {
988 yy_last_accepting_state = yy_current_state;
989 yy_last_accepting_cpos = yy_cp;
990 }
991 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
992 {
993 yy_current_state = (int) yy_def[yy_current_state];
994 if ( yy_current_state >= 24 )
995 yy_c = yy_meta[(unsigned int) yy_c];
996 }
997 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
998 }
999
1000 return yy_current_state;
1001 }
1002
1003
1004 /* yy_try_NUL_trans - try to make a transition on the NUL character
1005 *
1006 * synopsis
1007 * next_state = yy_try_NUL_trans( current_state );
1008 */
1009
1010 #ifdef YY_USE_PROTOS
1011 static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
1012 #else
1013 static yy_state_type yy_try_NUL_trans( yy_current_state )
1014 yy_state_type yy_current_state;
1015 #endif
1016 {
1017 register int yy_is_jam;
1018 register char *yy_cp = yy_c_buf_p;
1019
1020 register YY_CHAR yy_c = 1;
1021 if ( yy_accept[yy_current_state] )
1022 {
1023 yy_last_accepting_state = yy_current_state;
1024 yy_last_accepting_cpos = yy_cp;
1025 }
1026 while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
1027 {
1028 yy_current_state = (int) yy_def[yy_current_state];
1029 if ( yy_current_state >= 24 )
1030 yy_c = yy_meta[(unsigned int) yy_c];
1031 }
1032 yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
1033 yy_is_jam = (yy_current_state == 23);
1034
1035 return yy_is_jam ? 0 : yy_current_state;
1036 }
1037
1038
1039 #ifndef YY_NO_UNPUT
1040 #ifdef YY_USE_PROTOS
1041 static void yyunput( int c, register char *yy_bp )
1042 #else
1043 static void yyunput( c, yy_bp )
1044 int c;
1045 register char *yy_bp;
1046 #endif
1047 {
1048 register char *yy_cp = yy_c_buf_p;
1049
1050 /* undo effects of setting up yytext */
1051 *yy_cp = yy_hold_char;
1052
1053 if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
1054 { /* need to shift things up to make room */
1055 /* +2 for EOB chars. */
1056 register int number_to_move = yy_n_chars + 2;
1057 register char *dest = &yy_current_buffer->yy_ch_buf[
1058 yy_current_buffer->yy_buf_size + 2];
1059 register char *source =
1060 &yy_current_buffer->yy_ch_buf[number_to_move];
1061
1062 while ( source > yy_current_buffer->yy_ch_buf )
1063 *--dest = *--source;
1064
1065 yy_cp += (int) (dest - source);
1066 yy_bp += (int) (dest - source);
1067 yy_current_buffer->yy_n_chars =
1068 yy_n_chars = yy_current_buffer->yy_buf_size;
1069
1070 if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
1071 YY_FATAL_ERROR( "flex scanner push-back overflow" );
1072 }
1073
1074 *--yy_cp = (char) c;
1075
1076
1077 yytext_ptr = yy_bp;
1078 yy_hold_char = *yy_cp;
1079 yy_c_buf_p = yy_cp;
1080 }
1081 #endif /* ifndef YY_NO_UNPUT */
1082
1083
1084 #ifdef __cplusplus
1085 static int yyinput()
1086 #else
1087 static int input()
1088 #endif
1089 {
1090 int c;
1091
1092 *yy_c_buf_p = yy_hold_char;
1093
1094 if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
1095 {
1096 /* yy_c_buf_p now points to the character we want to return.
1097 * If this occurs *before* the EOB characters, then it's a
1098 * valid NUL; if not, then we've hit the end of the buffer.
1099 */
1100 if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] )
1101 /* This was really a NUL. */
1102 *yy_c_buf_p = '\0';
1103
1104 else
1105 { /* need more input */
1106 int offset = yy_c_buf_p - yytext_ptr;
1107 ++yy_c_buf_p;
1108
1109 switch ( yy_get_next_buffer() )
1110 {
1111 case EOB_ACT_LAST_MATCH:
1112 /* This happens because yy_g_n_b()
1113 * sees that we've accumulated a
1114 * token and flags that we need to
1115 * try matching the token before
1116 * proceeding. But for input(),
1117 * there's no matching to consider.
1118 * So convert the EOB_ACT_LAST_MATCH
1119 * to EOB_ACT_END_OF_FILE.
1120 */
1121
1122 /* Reset buffer status. */
1123 yyrestart( yyin );
1124
1125 /* fall through */
1126
1127 case EOB_ACT_END_OF_FILE:
1128 {
1129 if ( yywrap() )
1130 return EOF;
1131
1132 if ( ! yy_did_buffer_switch_on_eof )
1133 YY_NEW_FILE;
1134 #ifdef __cplusplus
1135 return yyinput();
1136 #else
1137 return input();
1138 #endif
1139 }
1140
1141 case EOB_ACT_CONTINUE_SCAN:
1142 yy_c_buf_p = yytext_ptr + offset;
1143 break;
1144 }
1145 }
1146 }
1147
1148 c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */
1149 *yy_c_buf_p = '\0'; /* preserve yytext */
1150 yy_hold_char = *++yy_c_buf_p;
1151
1152
1153 return c;
1154 }
1155
1156
1157 #ifdef YY_USE_PROTOS
1158 void yyrestart( FILE *input_file )
1159 #else
1160 void yyrestart( input_file )
1161 FILE *input_file;
1162 #endif
1163 {
1164 if ( ! yy_current_buffer )
1165 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );
1166
1167 yy_init_buffer( yy_current_buffer, input_file );
1168 yy_load_buffer_state();
1169 }
1170
1171
1172 #ifdef YY_USE_PROTOS
1173 void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
1174 #else
1175 void yy_switch_to_buffer( new_buffer )
1176 YY_BUFFER_STATE new_buffer;
1177 #endif
1178 {
1179 if ( yy_current_buffer == new_buffer )
1180 return;
1181
1182 if ( yy_current_buffer )
1183 {
1184 /* Flush out information for old buffer. */
1185 *yy_c_buf_p = yy_hold_char;
1186 yy_current_buffer->yy_buf_pos = yy_c_buf_p;
1187 yy_current_buffer->yy_n_chars = yy_n_chars;
1188 }
1189
1190 yy_current_buffer = new_buffer;
1191 yy_load_buffer_state();
1192
1193 /* We don't actually know whether we did this switch during
1194 * EOF (yywrap()) processing, but the only time this flag
1195 * is looked at is after yywrap() is called, so it's safe
1196 * to go ahead and always set it.
1197 */
1198 yy_did_buffer_switch_on_eof = 1;
1199 }
1200
1201
1202 #ifdef YY_USE_PROTOS
1203 void yy_load_buffer_state( void )
1204 #else
1205 void yy_load_buffer_state()
1206 #endif
1207 {
1208 yy_n_chars = yy_current_buffer->yy_n_chars;
1209 yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
1210 yyin = yy_current_buffer->yy_input_file;
1211 yy_hold_char = *yy_c_buf_p;
1212 }
1213
1214
1215 #ifdef YY_USE_PROTOS
1216 YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
1217 #else
1218 YY_BUFFER_STATE yy_create_buffer( file, size )
1219 FILE *file;
1220 int size;
1221 #endif
1222 {
1223 YY_BUFFER_STATE b;
1224
1225 b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
1226 if ( ! b )
1227 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
1228
1229 b->yy_buf_size = size;
1230
1231 /* yy_ch_buf has to be 2 characters longer than the size given because
1232 * we need to put in 2 end-of-buffer characters.
1233 */
1234 b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 );
1235 if ( ! b->yy_ch_buf )
1236 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
1237
1238 b->yy_is_our_buffer = 1;
1239
1240 yy_init_buffer( b, file );
1241
1242 return b;
1243 }
1244
1245
1246 #ifdef YY_USE_PROTOS
1247 void yy_delete_buffer( YY_BUFFER_STATE b )
1248 #else
1249 void yy_delete_buffer( b )
1250 YY_BUFFER_STATE b;
1251 #endif
1252 {
1253 if ( ! b )
1254 return;
1255
1256 if ( b == yy_current_buffer )
1257 yy_current_buffer = (YY_BUFFER_STATE) 0;
1258
1259 if ( b->yy_is_our_buffer )
1260 yy_flex_free( (void *) b->yy_ch_buf );
1261
1262 yy_flex_free( (void *) b );
1263 }
1264
1265
1266
1267 #ifdef YY_USE_PROTOS
1268 void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
1269 #else
1270 void yy_init_buffer( b, file )
1271 YY_BUFFER_STATE b;
1272 FILE *file;
1273 #endif
1274
1275
1276 {
1277 yy_flush_buffer( b );
1278
1279 b->yy_input_file = file;
1280 b->yy_fill_buffer = 1;
1281
1282 #if YY_ALWAYS_INTERACTIVE
1283 b->yy_is_interactive = 1;
1284 #else
1285 #if YY_NEVER_INTERACTIVE
1286 b->yy_is_interactive = 0;
1287 #else
1288 b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
1289 #endif
1290 #endif
1291 }
1292
1293
1294 #ifdef YY_USE_PROTOS
1295 void yy_flush_buffer( YY_BUFFER_STATE b )
1296 #else
1297 void yy_flush_buffer( b )
1298 YY_BUFFER_STATE b;
1299 #endif
1300
1301 {
1302 if ( ! b )
1303 return;
1304
1305 b->yy_n_chars = 0;
1306
1307 /* We always need two end-of-buffer characters. The first causes
1308 * a transition to the end-of-buffer state. The second causes
1309 * a jam in that state.
1310 */
1311 b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
1312 b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
1313
1314 b->yy_buf_pos = &b->yy_ch_buf[0];
1315
1316 b->yy_at_bol = 1;
1317 b->yy_buffer_status = YY_BUFFER_NEW;
1318
1319 if ( b == yy_current_buffer )
1320 yy_load_buffer_state();
1321 }
1322
1323
1324 #ifndef YY_NO_SCAN_BUFFER
1325 #ifdef YY_USE_PROTOS
1326 YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size )
1327 #else
1328 YY_BUFFER_STATE yy_scan_buffer( base, size )
1329 char *base;
1330 yy_size_t size;
1331 #endif
1332 {
1333 YY_BUFFER_STATE b;
1334
1335 if ( size < 2 ||
1336 base[size-2] != YY_END_OF_BUFFER_CHAR ||
1337 base[size-1] != YY_END_OF_BUFFER_CHAR )
1338 /* They forgot to leave room for the EOB's. */
1339 return 0;
1340
1341 b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
1342 if ( ! b )
1343 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
1344
1345 b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
1346 b->yy_buf_pos = b->yy_ch_buf = base;
1347 b->yy_is_our_buffer = 0;
1348 b->yy_input_file = 0;
1349 b->yy_n_chars = b->yy_buf_size;
1350 b->yy_is_interactive = 0;
1351 b->yy_at_bol = 1;
1352 b->yy_fill_buffer = 0;
1353 b->yy_buffer_status = YY_BUFFER_NEW;
1354
1355 yy_switch_to_buffer( b );
1356
1357 return b;
1358 }
1359 #endif
1360
1361
1362 #ifndef YY_NO_SCAN_STRING
1363 #ifdef YY_USE_PROTOS
1364 YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str )
1365 #else
1366 YY_BUFFER_STATE yy_scan_string( yy_str )
1367 yyconst char *yy_str;
1368 #endif
1369 {
1370 int len;
1371 for ( len = 0; yy_str[len]; ++len )
1372 ;
1373
1374 return yy_scan_bytes( yy_str, len );
1375 }
1376 #endif
1377
1378
1379 #ifndef YY_NO_SCAN_BYTES
1380 #ifdef YY_USE_PROTOS
1381 YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len )
1382 #else
1383 YY_BUFFER_STATE yy_scan_bytes( bytes, len )
1384 yyconst char *bytes;
1385 int len;
1386 #endif
1387 {
1388 YY_BUFFER_STATE b;
1389 char *buf;
1390 yy_size_t n;
1391 int i;
1392
1393 /* Get memory for full buffer, including space for trailing EOB's. */
1394 n = len + 2;
1395 buf = (char *) yy_flex_alloc( n );
1396 if ( ! buf )
1397 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
1398
1399 for ( i = 0; i < len; ++i )
1400 buf[i] = bytes[i];
1401
1402 buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
1403
1404 b = yy_scan_buffer( buf, n );
1405 if ( ! b )
1406 YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
1407
1408 /* It's okay to grow etc. this buffer, and we should throw it
1409 * away when we're done.
1410 */
1411 b->yy_is_our_buffer = 1;
1412
1413 return b;
1414 }
1415 #endif
1416
1417
1418 #ifndef YY_NO_PUSH_STATE
1419 #ifdef YY_USE_PROTOS
1420 static void yy_push_state( int new_state )
1421 #else
1422 static void yy_push_state( new_state )
1423 int new_state;
1424 #endif
1425 {
1426 if ( yy_start_stack_ptr >= yy_start_stack_depth )
1427 {
1428 yy_size_t new_size;
1429
1430 yy_start_stack_depth += YY_START_STACK_INCR;
1431 new_size = yy_start_stack_depth * sizeof( int );
1432
1433 if ( ! yy_start_stack )
1434 yy_start_stack = (int *) yy_flex_alloc( new_size );
1435
1436 else
1437 yy_start_stack = (int *) yy_flex_realloc(
1438 (void *) yy_start_stack, new_size );
1439
1440 if ( ! yy_start_stack )
1441 YY_FATAL_ERROR(
1442 "out of memory expanding start-condition stack" );
1443 }
1444
1445 yy_start_stack[yy_start_stack_ptr++] = YY_START;
1446
1447 BEGIN(new_state);
1448 }
1449 #endif
1450
1451
1452 #ifndef YY_NO_POP_STATE
1453 static void yy_pop_state()
1454 {
1455 if ( --yy_start_stack_ptr < 0 )
1456 YY_FATAL_ERROR( "start-condition stack underflow" );
1457
1458 BEGIN(yy_start_stack[yy_start_stack_ptr]);
1459 }
1460 #endif
1461
1462
1463 #ifndef YY_NO_TOP_STATE
1464 static int yy_top_state()
1465 {
1466 return yy_start_stack[yy_start_stack_ptr - 1];
1467 }
1468 #endif
1469
1470 #ifndef YY_EXIT_FAILURE
1471 #define YY_EXIT_FAILURE 2
1472 #endif
1473
1474 #ifdef YY_USE_PROTOS
1475 static void yy_fatal_error( yyconst char msg[] )
1476 #else
1477 static void yy_fatal_error( msg )
1478 char msg[];
1479 #endif
1480 {
1481 (void) fprintf( stderr, "%s\n", msg );
1482 exit( YY_EXIT_FAILURE );
1483 }
1484
1485
1486
1487 /* Redefine yyless() so it works in section 3 code. */
1488
1489 #undef yyless
1490 #define yyless(n) \
1491 do \
1492 { \
1493 /* Undo effects of setting up yytext. */ \
1494 yytext[yyleng] = yy_hold_char; \
1495 yy_c_buf_p = yytext + n; \
1496 yy_hold_char = *yy_c_buf_p; \
1497 *yy_c_buf_p = '\0'; \
1498 yyleng = n; \
1499 } \
1500 while ( 0 )
1501
1502
1503 /* Internal utility routines. */
1504
1505 #ifndef yytext_ptr
1506 #ifdef YY_USE_PROTOS
1507 static void yy_flex_strncpy( char *s1, yyconst char *s2, int n )
1508 #else
1509 static void yy_flex_strncpy( s1, s2, n )
1510 char *s1;
1511 yyconst char *s2;
1512 int n;
1513 #endif
1514 {
1515 register int i;
1516 for ( i = 0; i < n; ++i )
1517 s1[i] = s2[i];
1518 }
1519 #endif
1520
1521 #ifdef YY_NEED_STRLEN
1522 #ifdef YY_USE_PROTOS
1523 static int yy_flex_strlen( yyconst char *s )
1524 #else
1525 static int yy_flex_strlen( s )
1526 yyconst char *s;
1527 #endif
1528 {
1529 register int n;
1530 for ( n = 0; s[n]; ++n )
1531 ;
1532
1533 return n;
1534 }
1535 #endif
1536
1537
1538 #ifdef YY_USE_PROTOS
1539 static void *yy_flex_alloc( yy_size_t size )
1540 #else
1541 static void *yy_flex_alloc( size )
1542 yy_size_t size;
1543 #endif
1544 {
1545 return (void *) malloc( size );
1546 }
1547
1548 #ifdef YY_USE_PROTOS
1549 static void *yy_flex_realloc( void *ptr, yy_size_t size )
1550 #else
1551 static void *yy_flex_realloc( ptr, size )
1552 void *ptr;
1553 yy_size_t size;
1554 #endif
1555 {
1556 /* The cast to (char *) in the following accommodates both
1557 * implementations that use char* generic pointers, and those
1558 * that use void* generic pointers. It works with the latter
1559 * because both ANSI C and C++ allow castless assignment from
1560 * any pointer type to void*, and deal with argument conversions
1561 * as though doing an assignment.
1562 */
1563 return (void *) realloc( (char *) ptr, size );
1564 }
1565
1566 #ifdef YY_USE_PROTOS
1567 static void yy_flex_free( void *ptr )
1568 #else
1569 static void yy_flex_free( ptr )
1570 void *ptr;
1571 #endif
1572 {
1573 free( ptr );
1574 }
1575
1576 #if YY_MAIN
1577 int main()
1578 {
1579 yylex();
1580 return 0;
1581 }
1582 #endif
1583 #line 65 "expr.l"
1584
1585
1586 void exprCleanBuffer()
1587 {
1588 yy_delete_buffer(yy_current_buffer);
1589 yy_init = 1;
1590 }