| blob | 9881a8b5c5ae6a79f8242e83c0daf176f4e5ae72 |
1 /* A lexical scanner generated by flex */
3 /* Scanner skeleton version:
4 * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $
5 * $FreeBSD: src/usr.bin/lex/flex.skl,v 1.4 1999/10/27 07:56:44 obrien Exp $
6 * $DragonFly: src/usr.bin/lex/flex.skl,v 1.9 2008/10/16 01:52:32 swildner Exp $
7 */
9 #define FLEX_SCANNER
10 #define YY_FLEX_MAJOR_VERSION 2
11 #define YY_FLEX_MINOR_VERSION 5
13 %-
14 #include <stdio.h>
15 %*
18 /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
19 #ifdef c_plusplus
20 #ifndef __cplusplus
21 #define __cplusplus
22 #endif
23 #endif
26 #ifdef __cplusplus
28 #include <stdlib.h>
29 %+
30 #include <iosfwd>
31 using namespace std;
32 %*
33 #include <unistd.h>
35 /* Use prototypes in function declarations. */
36 #define YY_USE_PROTOS
38 /* The "const" storage-class-modifier is valid. */
39 #define YY_USE_CONST
41 #else /* ! __cplusplus */
43 #include <unistd.h>
45 #if __STDC__
47 #define YY_USE_PROTOS
48 #define YY_USE_CONST
50 #endif /* __STDC__ */
51 #endif /* ! __cplusplus */
53 #ifdef YY_USE_CONST
54 #define yyconst const
55 #else
56 #define yyconst
57 #endif
60 #ifdef YY_USE_PROTOS
61 #define YY_PROTO(proto) proto
62 #else
63 #define YY_PROTO(proto) ()
64 #endif
66 /* Returned upon end-of-file. */
67 #define YY_NULL 0
69 /* Promotes a possibly negative, possibly signed char to an unsigned
70 * integer for use as an array index. If the signed char is negative,
71 * we want to instead treat it as an 8-bit unsigned char, hence the
72 * double cast.
73 */
74 #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
76 /* Enter a start condition. This macro really ought to take a parameter,
77 * but we do it the disgusting crufty way forced on us by the ()-less
78 * definition of BEGIN.
79 */
80 #define BEGIN yy_start = 1 + 2 *
82 /* Translate the current start state into a value that can be later handed
83 * to BEGIN to return to the state. The YYSTATE alias is for lex
84 * compatibility.
85 */
86 #define YY_START ((yy_start - 1) / 2)
87 #define YYSTATE YY_START
89 /* Action number for EOF rule of a given start state. */
90 #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
92 /* Special action meaning "start processing a new file". */
93 #define YY_NEW_FILE yyrestart( yyin )
95 #define YY_END_OF_BUFFER_CHAR 0
97 /* Size of default input buffer. */
98 #define YY_BUF_SIZE 16384
100 typedef struct yy_buffer_state *YY_BUFFER_STATE;
102 extern int yyleng;
103 %-
104 extern FILE *yyin, *yyout;
105 %*
107 #define EOB_ACT_CONTINUE_SCAN 0
108 #define EOB_ACT_END_OF_FILE 1
109 #define EOB_ACT_LAST_MATCH 2
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 */
125 /* Return all but the first 'n' matched characters back to the input stream. */
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 )
138 #define unput(c) yyunput( c, yytext_ptr )
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;
147 struct yy_buffer_state
148 {
149 %-
150 FILE *yy_input_file;
151 %+
152 istream* yy_input_file;
153 %*
155 char *yy_ch_buf; /* input buffer */
156 char *yy_buf_pos; /* current position in input buffer */
158 /* Size of input buffer in bytes, not including room for EOB
159 * characters.
160 */
161 yy_size_t yy_buf_size;
163 /* Number of characters read into yy_ch_buf, not including EOB
164 * characters.
165 */
166 int yy_n_chars;
168 /* Whether we "own" the buffer - i.e., we know we created it,
169 * and can realloc() it to grow it, and should free() it to
170 * delete it.
171 */
172 int yy_is_our_buffer;
174 /* Whether this is an "interactive" input source; if so, and
175 * if we're using stdio for input, then we want to use getc()
176 * instead of fread(), to make sure we stop fetching input after
177 * each newline.
178 */
179 int yy_is_interactive;
181 /* Whether we're considered to be at the beginning of a line.
182 * If so, '^' rules will be active on the next match, otherwise
183 * not.
184 */
185 int yy_at_bol;
187 /* Whether to try to fill the input buffer when we reach the
188 * end of it.
189 */
190 int yy_fill_buffer;
192 int yy_buffer_status;
193 #define YY_BUFFER_NEW 0
194 #define YY_BUFFER_NORMAL 1
195 /* When an EOF's been seen but there's still some text to process
196 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
197 * shouldn't try reading from the input source any more. We might
198 * still have a bunch of tokens to match, though, because of
199 * possible backing-up.
200 *
201 * When we actually see the EOF, we change the status to "new"
202 * (via yyrestart()), so that the user can continue scanning by
203 * just pointing yyin at a new input file.
204 */
205 #define YY_BUFFER_EOF_PENDING 2
206 };
208 %- Standard (non-C++) definition
209 static YY_BUFFER_STATE yy_current_buffer = 0;
210 %*
212 /* We provide macros for accessing buffer states in case in the
213 * future we want to put the buffer states in a more general
214 * "scanner state".
215 */
216 #define YY_CURRENT_BUFFER yy_current_buffer
219 %- Standard (non-C++) definition
220 /* yy_hold_char holds the character lost when yytext is formed. */
221 static char yy_hold_char;
223 static int yy_n_chars; /* number of characters read into yy_ch_buf */
226 int yyleng;
228 /* Points to current character in buffer. */
229 static char *yy_c_buf_p = NULL;
230 static int yy_init = 1; /* whether we need to initialize */
231 static int yy_start = 0; /* start state number */
233 /* Flag which is used to allow yywrap()'s to do buffer switches
234 * instead of setting up a fresh yyin. A bit of a hack ...
235 */
236 static int yy_did_buffer_switch_on_eof;
238 void yyrestart YY_PROTO(( FILE *input_file ));
240 void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
241 void yy_load_buffer_state YY_PROTO(( void ));
242 YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
243 void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
244 void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
245 void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
246 #define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )
248 YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
249 YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
250 YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));
251 %*
253 static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
254 static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ))
255 #ifdef __GNUC__
256 __attribute__((__unused__))
257 #endif
258 ;
259 static void yy_flex_free YY_PROTO(( void * ));
261 #define yy_new_buffer yy_create_buffer
263 #define yy_set_interactive(is_interactive) \
264 { \
265 if ( ! yy_current_buffer ) \
266 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
267 yy_current_buffer->yy_is_interactive = is_interactive; \
268 }
270 #define yy_set_bol(at_bol) \
271 { \
272 if ( ! yy_current_buffer ) \
273 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
274 yy_current_buffer->yy_at_bol = at_bol; \
275 }
277 #define YY_AT_BOL() (yy_current_buffer->yy_at_bol)
279 %% yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here
281 %- Standard (non-C++) definition
282 static yy_state_type yy_get_previous_state YY_PROTO(( void ));
283 static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
284 static int yy_get_next_buffer YY_PROTO(( void ));
285 static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));
286 %*
288 /* Done after the current pattern has been matched and before the
289 * corresponding action - sets up yytext.
290 */
291 #define YY_DO_BEFORE_ACTION \
292 yytext_ptr = yy_bp; \
293 %% code to fiddle yytext and yyleng for yymore() goes here
294 yy_hold_char = *yy_cp; \
295 *yy_cp = '\0'; \
296 %% code to copy yytext_ptr to yytext[] goes here, if %array
297 yy_c_buf_p = yy_cp;
299 %% data tables for the DFA and the user's section 1 definitions go here
301 /* Macros after this point can all be overridden by user definitions in
302 * section 1.
303 */
305 #ifndef YY_SKIP_YYWRAP
306 #ifdef __cplusplus
307 extern "C" int yywrap YY_PROTO(( void ));
308 #else
309 extern int yywrap YY_PROTO(( void ));
310 #endif
311 #endif
313 %-
314 #ifndef YY_NO_UNPUT
315 static void yyunput YY_PROTO(( int c, char *buf_ptr ));
316 #endif
317 %*
319 #ifndef yytext_ptr
320 static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
321 #endif
323 #ifdef YY_NEED_STRLEN
324 static int yy_flex_strlen YY_PROTO(( yyconst char * ));
325 #endif
327 #ifndef YY_NO_INPUT
328 %- Standard (non-C++) definition
329 #ifdef __cplusplus
330 static int yyinput YY_PROTO(( void ));
331 #else
332 static int input YY_PROTO(( void ));
333 #endif
334 %*
335 #endif
337 #if YY_STACK_USED
338 static int yy_start_stack_ptr = 0;
339 static int yy_start_stack_depth = 0;
340 static int *yy_start_stack = 0;
341 #ifndef YY_NO_PUSH_STATE
342 static void yy_push_state YY_PROTO(( int new_state ));
343 #endif
344 #ifndef YY_NO_POP_STATE
345 static void yy_pop_state YY_PROTO(( void ));
346 #endif
347 #ifndef YY_NO_TOP_STATE
348 static int yy_top_state YY_PROTO(( void ));
349 #endif
351 #else
352 #define YY_NO_PUSH_STATE 1
353 #define YY_NO_POP_STATE 1
354 #define YY_NO_TOP_STATE 1
355 #endif
357 #ifdef YY_MALLOC_DECL
358 YY_MALLOC_DECL
359 #else
360 #if __STDC__
361 #ifndef __cplusplus
362 #include <stdlib.h>
363 #endif
364 #else
365 /* Just try to get by without declaring the routines. This will fail
366 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
367 * or sizeof(void*) != sizeof(int).
368 */
369 #endif
370 #endif
372 /* Amount of stuff to slurp up with each read. */
373 #ifndef YY_READ_BUF_SIZE
374 #define YY_READ_BUF_SIZE 8192
375 #endif
377 /* Copy whatever the last rule matched to the standard output. */
379 #ifndef ECHO
380 %- Standard (non-C++) definition
381 /* This used to be an fputs(), but since the string might contain NUL's,
382 * we now use fwrite().
383 */
384 #define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
385 %+ C++ definition
386 #define ECHO LexerOutput( yytext, yyleng )
387 %*
388 #endif
390 /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
391 * is returned in "result".
392 */
393 #ifndef YY_INPUT
394 #define YY_INPUT(buf,result,max_size) \
395 %% fread()/read() definition of YY_INPUT goes here unless we're doing C++
396 %+ C++ definition
397 if ( (result = LexerInput( (char *) buf, max_size )) < 0 ) \
398 YY_FATAL_ERROR( "input in flex scanner failed" );
399 %*
400 #endif
402 /* No semi-colon after return; correct usage is to write "yyterminate();" -
403 * we don't want an extra ';' after the "return" because that will cause
404 * some compilers to complain about unreachable statements.
405 */
406 #ifndef yyterminate
407 #define yyterminate() return YY_NULL
408 #endif
410 /* Number of entries by which start-condition stack grows. */
411 #ifndef YY_START_STACK_INCR
412 #define YY_START_STACK_INCR 25
413 #endif
415 /* Report a fatal error. */
416 #ifndef YY_FATAL_ERROR
417 %-
418 #define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
419 %+
420 #define YY_FATAL_ERROR(msg) LexerError( msg )
421 %*
422 #endif
424 /* Default declaration of generated scanner - a define so the user can
425 * easily add parameters.
426 */
427 #ifndef YY_DECL
428 %- Standard (non-C++) definition
429 #define YY_DECL int yylex YY_PROTO(( void ))
430 %+ C++ definition
431 #define YY_DECL int yyFlexLexer::yylex()
432 %*
433 #endif
435 /* Code executed at the beginning of each rule, after yytext and yyleng
436 * have been set up.
437 */
438 #ifndef YY_USER_ACTION
439 #define YY_USER_ACTION
440 #endif
442 /* Code executed at the end of each rule. */
443 #ifndef YY_BREAK
444 #define YY_BREAK break;
445 #endif
447 %% YY_RULE_SETUP definition goes here
449 YY_DECL
450 {
451 yy_state_type yy_current_state;
452 char *yy_cp, *yy_bp;
453 int yy_act;
455 %% user's declarations go here
457 if ( yy_init )
458 {
459 yy_init = 0;
461 #ifdef YY_USER_INIT
462 YY_USER_INIT;
463 #endif
465 if ( ! yy_start )
466 yy_start = 1; /* first start state */
468 if ( ! yyin )
469 %-
470 yyin = stdin;
471 %+
472 yyin = &cin;
473 %*
475 if ( ! yyout )
476 %-
477 yyout = stdout;
478 %+
479 yyout = &cout;
480 %*
482 if ( ! yy_current_buffer )
483 yy_current_buffer =
484 yy_create_buffer( yyin, YY_BUF_SIZE );
486 yy_load_buffer_state();
487 }
489 while ( 1 ) /* loops until end-of-file is reached */
490 {
491 %% yymore()-related code goes here
492 yy_cp = yy_c_buf_p;
494 /* Support of yytext. */
495 *yy_cp = yy_hold_char;
497 /* yy_bp points to the position in yy_ch_buf of the start of
498 * the current run.
499 */
500 yy_bp = yy_cp;
502 %% code to set up and find next match goes here
504 yy_find_action:
505 %% code to find the action number goes here
507 YY_DO_BEFORE_ACTION;
509 %% code for yylineno update goes here
511 do_action: /* This label is used only to access EOF actions. */
513 %% debug code goes here
515 switch ( yy_act )
516 { /* beginning of action switch */
517 %% actions go here
519 case YY_END_OF_BUFFER:
520 {
521 /* Amount of text matched not including the EOB char. */
522 int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;
524 /* Undo the effects of YY_DO_BEFORE_ACTION. */
525 *yy_cp = yy_hold_char;
526 YY_RESTORE_YY_MORE_OFFSET
528 if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW )
529 {
530 /* We're scanning a new file or input source. It's
531 * possible that this happened because the user
532 * just pointed yyin at a new source and called
533 * yylex(). If so, then we have to assure
534 * consistency between yy_current_buffer and our
535 * globals. Here is the right place to do so, because
536 * this is the first action (other than possibly a
537 * back-up) that will match for the new input source.
538 */
539 yy_n_chars = yy_current_buffer->yy_n_chars;
540 yy_current_buffer->yy_input_file = yyin;
541 yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
542 }
544 /* Note that here we test for yy_c_buf_p "<=" to the position
545 * of the first EOB in the buffer, since yy_c_buf_p will
546 * already have been incremented past the NUL character
547 * (since all states make transitions on EOB to the
548 * end-of-buffer state). Contrast this with the test
549 * in input().
550 */
551 if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
552 { /* This was really a NUL. */
553 yy_state_type yy_next_state;
555 yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;
557 yy_current_state = yy_get_previous_state();
559 /* Okay, we're now positioned to make the NUL
560 * transition. We couldn't have
561 * yy_get_previous_state() go ahead and do it
562 * for us because it doesn't know how to deal
563 * with the possibility of jamming (and we don't
564 * want to build jamming into it because then it
565 * will run more slowly).
566 */
568 yy_next_state = yy_try_NUL_trans( yy_current_state );
570 yy_bp = yytext_ptr + YY_MORE_ADJ;
572 if ( yy_next_state )
573 {
574 /* Consume the NUL. */
575 yy_cp = ++yy_c_buf_p;
576 yy_current_state = yy_next_state;
577 goto yy_match;
578 }
580 else
581 {
582 %% code to do back-up for compressed tables and set up yy_cp goes here
583 goto yy_find_action;
584 }
585 }
587 else switch ( yy_get_next_buffer() )
588 {
589 case EOB_ACT_END_OF_FILE:
590 {
591 yy_did_buffer_switch_on_eof = 0;
593 if ( yywrap() )
594 {
595 /* Note: because we've taken care in
596 * yy_get_next_buffer() to have set up
597 * yytext, we can now set up
598 * yy_c_buf_p so that if some total
599 * hoser (like flex itself) wants to
600 * call the scanner after we return the
601 * YY_NULL, it'll still work - another
602 * YY_NULL will get returned.
603 */
604 yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;
606 yy_act = YY_STATE_EOF(YY_START);
607 goto do_action;
608 }
610 else
611 {
612 if ( ! yy_did_buffer_switch_on_eof )
613 YY_NEW_FILE;
614 }
615 break;
616 }
618 case EOB_ACT_CONTINUE_SCAN:
619 yy_c_buf_p =
620 yytext_ptr + yy_amount_of_matched_text;
622 yy_current_state = yy_get_previous_state();
624 yy_cp = yy_c_buf_p;
625 yy_bp = yytext_ptr + YY_MORE_ADJ;
626 goto yy_match;
628 case EOB_ACT_LAST_MATCH:
629 yy_c_buf_p =
630 &yy_current_buffer->yy_ch_buf[yy_n_chars];
632 yy_current_state = yy_get_previous_state();
634 yy_cp = yy_c_buf_p;
635 yy_bp = yytext_ptr + YY_MORE_ADJ;
636 goto yy_find_action;
637 }
638 break;
639 }
641 default:
642 YY_FATAL_ERROR(
643 "fatal flex scanner internal error--no action found" );
644 } /* end of action switch */
645 } /* end of scanning one token */
646 } /* end of yylex */
648 %+
649 yyFlexLexer::yyFlexLexer( istream* arg_yyin, ostream* arg_yyout )
650 {
651 yyin = arg_yyin;
652 yyout = arg_yyout;
653 yy_c_buf_p = 0;
654 yy_init = 1;
655 yy_start = 0;
656 yy_flex_debug = 0;
657 yylineno = 1; // this will only get updated if %option yylineno
659 yy_did_buffer_switch_on_eof = 0;
661 yy_looking_for_trail_begin = 0;
662 yy_more_flag = 0;
663 yy_more_len = 0;
664 yy_more_offset = yy_prev_more_offset = 0;
666 yy_start_stack_ptr = yy_start_stack_depth = 0;
667 yy_start_stack = 0;
669 yy_current_buffer = 0;
671 #ifdef YY_USES_REJECT
672 yy_state_buf = new yy_state_type[YY_BUF_SIZE + 2];
673 #else
674 yy_state_buf = 0;
675 #endif
676 }
678 yyFlexLexer::~yyFlexLexer()
679 {
680 delete yy_state_buf;
681 yy_delete_buffer( yy_current_buffer );
682 }
684 void yyFlexLexer::switch_streams( istream* new_in, ostream* new_out )
685 {
686 if ( new_in )
687 {
688 yy_delete_buffer( yy_current_buffer );
689 yy_switch_to_buffer( yy_create_buffer( new_in, YY_BUF_SIZE ) );
690 }
692 if ( new_out )
693 yyout = new_out;
694 }
696 #ifdef YY_INTERACTIVE
697 int yyFlexLexer::LexerInput( char* buf, int /* max_size */ )
698 #else
699 int yyFlexLexer::LexerInput( char* buf, int max_size )
700 #endif
701 {
702 if ( yyin->eof() || yyin->fail() )
703 return 0;
705 #ifdef YY_INTERACTIVE
706 yyin->get( buf[0] );
708 if ( yyin->eof() )
709 return 0;
711 if ( yyin->bad() )
712 return -1;
714 return 1;
716 #else
717 (void) yyin->read( buf, max_size );
719 if ( yyin->bad() )
720 return -1;
721 else
722 return yyin->gcount();
723 #endif
724 }
726 void yyFlexLexer::LexerOutput( const char* buf, int size )
727 {
728 (void) yyout->write( buf, size );
729 }
730 %*
732 /* yy_get_next_buffer - try to read in a new buffer
733 *
734 * Returns a code representing an action:
735 * EOB_ACT_LAST_MATCH -
736 * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
737 * EOB_ACT_END_OF_FILE - end of file
738 */
740 %-
741 #ifdef YY_USE_PROTOS
742 static int yy_get_next_buffer( void )
743 #else
744 static int yy_get_next_buffer()
745 #endif
746 %+
747 int yyFlexLexer::yy_get_next_buffer()
748 %*
749 {
750 char *dest = yy_current_buffer->yy_ch_buf;
751 char *source = yytext_ptr;
752 int number_to_move, i;
753 int ret_val;
755 if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
756 YY_FATAL_ERROR(
757 "fatal flex scanner internal error--end of buffer missed" );
759 if ( yy_current_buffer->yy_fill_buffer == 0 )
760 { /* Don't try to fill the buffer, so this is an EOF. */
761 if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 )
762 {
763 /* We matched a single character, the EOB, so
764 * treat this as a final EOF.
765 */
766 return EOB_ACT_END_OF_FILE;
767 }
769 else
770 {
771 /* We matched some text prior to the EOB, first
772 * process it.
773 */
774 return EOB_ACT_LAST_MATCH;
775 }
776 }
778 /* Try to read more data. */
780 /* First move last chars to start of buffer. */
781 number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1;
783 for ( i = 0; i < number_to_move; ++i )
784 *(dest++) = *(source++);
786 if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING )
787 /* don't do the read, it's not guaranteed to return an EOF,
788 * just force an EOF
789 */
790 yy_current_buffer->yy_n_chars = yy_n_chars = 0;
792 else
793 {
794 int num_to_read =
795 yy_current_buffer->yy_buf_size - number_to_move - 1;
797 while ( num_to_read <= 0 )
798 { /* Not enough room in the buffer - grow it. */
799 #ifdef YY_USES_REJECT
800 YY_FATAL_ERROR(
801 "input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
802 #else
804 /* just a shorter name for the current buffer */
805 YY_BUFFER_STATE b = yy_current_buffer;
807 int yy_c_buf_p_offset =
808 (int) (yy_c_buf_p - b->yy_ch_buf);
810 if ( b->yy_is_our_buffer )
811 {
812 int new_size = b->yy_buf_size * 2;
814 if ( new_size <= 0 )
815 b->yy_buf_size += b->yy_buf_size / 8;
816 else
817 b->yy_buf_size *= 2;
819 b->yy_ch_buf = (char *)
820 /* Include room in for 2 EOB chars. */
821 yy_flex_realloc( (void *) b->yy_ch_buf,
822 b->yy_buf_size + 2 );
823 }
824 else
825 /* Can't grow it, we don't own it. */
826 b->yy_ch_buf = 0;
828 if ( ! b->yy_ch_buf )
829 YY_FATAL_ERROR(
830 "fatal error - scanner input buffer overflow" );
832 yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];
834 num_to_read = yy_current_buffer->yy_buf_size -
835 number_to_move - 1;
836 #endif
837 }
839 if ( num_to_read > YY_READ_BUF_SIZE )
840 num_to_read = YY_READ_BUF_SIZE;
842 /* Read in more data. */
843 YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
844 yy_n_chars, num_to_read );
846 yy_current_buffer->yy_n_chars = yy_n_chars;
847 }
849 if ( yy_n_chars == 0 )
850 {
851 if ( number_to_move == YY_MORE_ADJ )
852 {
853 ret_val = EOB_ACT_END_OF_FILE;
854 yyrestart( yyin );
855 }
857 else
858 {
859 ret_val = EOB_ACT_LAST_MATCH;
860 yy_current_buffer->yy_buffer_status =
861 YY_BUFFER_EOF_PENDING;
862 }
863 }
865 else
866 ret_val = EOB_ACT_CONTINUE_SCAN;
868 yy_n_chars += number_to_move;
869 yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
870 yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
872 yytext_ptr = &yy_current_buffer->yy_ch_buf[0];
874 return ret_val;
875 }
878 /* yy_get_previous_state - get the state just before the EOB char was reached */
880 %-
881 #ifdef YY_USE_PROTOS
882 static yy_state_type yy_get_previous_state( void )
883 #else
884 static yy_state_type yy_get_previous_state()
885 #endif
886 %+
887 yy_state_type yyFlexLexer::yy_get_previous_state()
888 %*
889 {
890 yy_state_type yy_current_state;
891 char *yy_cp;
893 %% code to get the start state into yy_current_state goes here
895 for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
896 {
897 %% code to find the next state goes here
898 }
900 return yy_current_state;
901 }
904 /* yy_try_NUL_trans - try to make a transition on the NUL character
905 *
906 * synopsis
907 * next_state = yy_try_NUL_trans( current_state );
908 */
910 %-
911 #ifdef YY_USE_PROTOS
912 static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
913 #else
914 static yy_state_type yy_try_NUL_trans( yy_current_state )
915 yy_state_type yy_current_state;
916 #endif
917 %+
918 yy_state_type yyFlexLexer::yy_try_NUL_trans( yy_state_type yy_current_state )
919 %*
920 {
921 int yy_is_jam;
922 %% code to find the next state, and perhaps do backing up, goes here
924 return yy_is_jam ? 0 : yy_current_state;
925 }
928 %-
929 #ifndef YY_NO_UNPUT
930 #ifdef YY_USE_PROTOS
931 static void yyunput( int c, char *yy_bp )
932 #else
933 static void yyunput( c, yy_bp )
934 int c;
935 char *yy_bp;
936 #endif
937 %+
938 void yyFlexLexer::yyunput( int c, char* yy_bp )
939 %*
940 {
941 char *yy_cp = yy_c_buf_p;
943 /* undo effects of setting up yytext */
944 *yy_cp = yy_hold_char;
946 if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
947 { /* need to shift things up to make room */
948 /* +2 for EOB chars. */
949 int number_to_move = yy_n_chars + 2;
950 char *dest = &yy_current_buffer->yy_ch_buf[
951 yy_current_buffer->yy_buf_size + 2];
952 char *source = &yy_current_buffer->yy_ch_buf[number_to_move];
954 while ( source > yy_current_buffer->yy_ch_buf )
955 *--dest = *--source;
957 yy_cp += (int) (dest - source);
958 yy_bp += (int) (dest - source);
959 yy_current_buffer->yy_n_chars =
960 yy_n_chars = yy_current_buffer->yy_buf_size;
962 if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
963 YY_FATAL_ERROR( "flex scanner push-back overflow" );
964 }
966 *--yy_cp = (char) c;
968 %% update yylineno here
970 yytext_ptr = yy_bp;
971 yy_hold_char = *yy_cp;
972 yy_c_buf_p = yy_cp;
973 }
974 %-
975 #endif /* ifndef YY_NO_UNPUT */
976 %*
979 %-
980 #ifndef YY_NO_INPUT
981 #ifdef __cplusplus
982 static int yyinput()
983 #else
984 #ifdef YY_USE_PROTOS
985 static int input( void )
986 #else
987 static int input()
988 #endif
989 #endif
990 %+
991 int yyFlexLexer::yyinput()
992 %*
993 {
994 int c;
996 *yy_c_buf_p = yy_hold_char;
998 if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
999 {
1000 /* yy_c_buf_p now points to the character we want to return.
1001 * If this occurs *before* the EOB characters, then it's a
1002 * valid NUL; if not, then we've hit the end of the buffer.
1003 */
1004 if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] )
1005 /* This was really a NUL. */
1006 *yy_c_buf_p = '\0';
1008 else
1009 { /* need more input */
1010 int offset = yy_c_buf_p - yytext_ptr;
1011 ++yy_c_buf_p;
1013 switch ( yy_get_next_buffer() )
1014 {
1015 case EOB_ACT_LAST_MATCH:
1016 /* This happens because yy_g_n_b()
1017 * sees that we've accumulated a
1018 * token and flags that we need to
1019 * try matching the token before
1020 * proceeding. But for input(),
1021 * there's no matching to consider.
1022 * So convert the EOB_ACT_LAST_MATCH
1023 * to EOB_ACT_END_OF_FILE.
1024 */
1026 /* Reset buffer status. */
1027 yyrestart( yyin );
1029 /* fall through */
1031 case EOB_ACT_END_OF_FILE:
1032 {
1033 if ( yywrap() )
1034 return EOF;
1036 if ( ! yy_did_buffer_switch_on_eof )
1037 YY_NEW_FILE;
1038 #ifdef __cplusplus
1039 return yyinput();
1040 #else
1041 return input();
1042 #endif
1043 }
1045 case EOB_ACT_CONTINUE_SCAN:
1046 yy_c_buf_p = yytext_ptr + offset;
1047 break;
1048 }
1049 }
1050 }
1052 c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */
1053 *yy_c_buf_p = '\0'; /* preserve yytext */
1054 yy_hold_char = *++yy_c_buf_p;
1056 %% update BOL and yylineno
1058 return c;
1059 }
1060 %-
1061 #endif /* ifndef YY_NO_INPUT */
1062 %*
1065 %-
1066 #ifdef YY_USE_PROTOS
1067 void yyrestart( FILE *input_file )
1068 #else
1069 void yyrestart( input_file )
1070 FILE *input_file;
1071 #endif
1072 %+
1073 void yyFlexLexer::yyrestart( istream* input_file )
1074 %*
1075 {
1076 if ( ! yy_current_buffer )
1077 yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );
1079 yy_init_buffer( yy_current_buffer, input_file );
1080 yy_load_buffer_state();
1081 }
1084 %-
1085 #ifdef YY_USE_PROTOS
1086 void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
1087 #else
1088 void yy_switch_to_buffer( new_buffer )
1089 YY_BUFFER_STATE new_buffer;
1090 #endif
1091 %+
1092 void yyFlexLexer::yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
1093 %*
1094 {
1095 if ( yy_current_buffer == new_buffer )
1096 return;
1098 if ( yy_current_buffer )
1099 {
1100 /* Flush out information for old buffer. */
1101 *yy_c_buf_p = yy_hold_char;
1102 yy_current_buffer->yy_buf_pos = yy_c_buf_p;
1103 yy_current_buffer->yy_n_chars = yy_n_chars;
1104 }
1106 yy_current_buffer = new_buffer;
1107 yy_load_buffer_state();
1109 /* We don't actually know whether we did this switch during
1110 * EOF (yywrap()) processing, but the only time this flag
1111 * is looked at is after yywrap() is called, so it's safe
1112 * to go ahead and always set it.
1113 */
1114 yy_did_buffer_switch_on_eof = 1;
1115 }
1118 %-
1119 #ifdef YY_USE_PROTOS
1120 void yy_load_buffer_state( void )
1121 #else
1122 void yy_load_buffer_state()
1123 #endif
1124 %+
1125 void yyFlexLexer::yy_load_buffer_state()
1126 %*
1127 {
1128 yy_n_chars = yy_current_buffer->yy_n_chars;
1129 yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
1130 yyin = yy_current_buffer->yy_input_file;
1131 yy_hold_char = *yy_c_buf_p;
1132 }
1135 %-
1136 #ifdef YY_USE_PROTOS
1137 YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
1138 #else
1139 YY_BUFFER_STATE yy_create_buffer( file, size )
1140 FILE *file;
1141 int size;
1142 #endif
1143 %+
1144 YY_BUFFER_STATE yyFlexLexer::yy_create_buffer( istream* file, int size )
1145 %*
1146 {
1147 YY_BUFFER_STATE b;
1149 b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
1150 if ( ! b )
1151 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
1153 b->yy_buf_size = size;
1155 /* yy_ch_buf has to be 2 characters longer than the size given because
1156 * we need to put in 2 end-of-buffer characters.
1157 */
1158 b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 );
1159 if ( ! b->yy_ch_buf )
1160 YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
1162 b->yy_is_our_buffer = 1;
1164 yy_init_buffer( b, file );
1166 return b;
1167 }
1170 %-
1171 #ifdef YY_USE_PROTOS
1172 void yy_delete_buffer( YY_BUFFER_STATE b )
1173 #else
1174 void yy_delete_buffer( b )
1175 YY_BUFFER_STATE b;
1176 #endif
1177 %+
1178 void yyFlexLexer::yy_delete_buffer( YY_BUFFER_STATE b )
1179 %*
1180 {
1181 if ( ! b )
1182 return;
1184 if ( b == yy_current_buffer )
1185 yy_current_buffer = (YY_BUFFER_STATE) 0;
1187 if ( b->yy_is_our_buffer )
1188 yy_flex_free( (void *) b->yy_ch_buf );
1190 yy_flex_free( (void *) b );
1191 }
1194 %-
1195 #ifdef YY_USE_PROTOS
1196 void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
1197 #else
1198 void yy_init_buffer( b, file )
1199 YY_BUFFER_STATE b;
1200 FILE *file;
1201 #endif
1203 %+
1204 extern "C" int isatty YY_PROTO(( int ));
1205 void yyFlexLexer::yy_init_buffer( YY_BUFFER_STATE b, istream* file )
1206 %*
1208 {
1209 yy_flush_buffer( b );
1211 b->yy_input_file = file;
1212 b->yy_fill_buffer = 1;
1214 %-
1215 #if YY_ALWAYS_INTERACTIVE
1216 b->yy_is_interactive = 1;
1217 #else
1218 #if YY_NEVER_INTERACTIVE
1219 b->yy_is_interactive = 0;
1220 #else
1221 b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
1222 #endif
1223 #endif
1224 %+
1225 b->yy_is_interactive = 0;
1226 %*
1227 }
1230 %-
1231 #ifdef YY_USE_PROTOS
1232 void yy_flush_buffer( YY_BUFFER_STATE b )
1233 #else
1234 void yy_flush_buffer( b )
1235 YY_BUFFER_STATE b;
1236 #endif
1238 %+
1239 void yyFlexLexer::yy_flush_buffer( YY_BUFFER_STATE b )
1240 %*
1241 {
1242 if ( ! b )
1243 return;
1245 b->yy_n_chars = 0;
1247 /* We always need two end-of-buffer characters. The first causes
1248 * a transition to the end-of-buffer state. The second causes
1249 * a jam in that state.
1250 */
1251 b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
1252 b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
1254 b->yy_buf_pos = &b->yy_ch_buf[0];
1256 b->yy_at_bol = 1;
1257 b->yy_buffer_status = YY_BUFFER_NEW;
1259 if ( b == yy_current_buffer )
1260 yy_load_buffer_state();
1261 }
1262 %*
1265 #ifndef YY_NO_SCAN_BUFFER
1266 %-
1267 #ifdef YY_USE_PROTOS
1268 YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size )
1269 #else
1270 YY_BUFFER_STATE yy_scan_buffer( base, size )
1271 char *base;
1272 yy_size_t size;
1273 #endif
1274 {
1275 YY_BUFFER_STATE b;
1277 if ( size < 2 ||
1278 base[size-2] != YY_END_OF_BUFFER_CHAR ||
1279 base[size-1] != YY_END_OF_BUFFER_CHAR )
1280 /* They forgot to leave room for the EOB's. */
1281 return 0;
1283 b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
1284 if ( ! b )
1285 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
1287 b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
1288 b->yy_buf_pos = b->yy_ch_buf = base;
1289 b->yy_is_our_buffer = 0;
1290 b->yy_input_file = 0;
1291 b->yy_n_chars = b->yy_buf_size;
1292 b->yy_is_interactive = 0;
1293 b->yy_at_bol = 1;
1294 b->yy_fill_buffer = 0;
1295 b->yy_buffer_status = YY_BUFFER_NEW;
1297 yy_switch_to_buffer( b );
1299 return b;
1300 }
1301 %*
1302 #endif
1305 #ifndef YY_NO_SCAN_STRING
1306 %-
1307 #ifdef YY_USE_PROTOS
1308 YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str )
1309 #else
1310 YY_BUFFER_STATE yy_scan_string( yy_str )
1311 yyconst char *yy_str;
1312 #endif
1313 {
1314 int len;
1315 for ( len = 0; yy_str[len]; ++len )
1316 ;
1318 return yy_scan_bytes( yy_str, len );
1319 }
1320 %*
1321 #endif
1324 #ifndef YY_NO_SCAN_BYTES
1325 %-
1326 #ifdef YY_USE_PROTOS
1327 YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len )
1328 #else
1329 YY_BUFFER_STATE yy_scan_bytes( bytes, len )
1330 yyconst char *bytes;
1331 int len;
1332 #endif
1333 {
1334 YY_BUFFER_STATE b;
1335 char *buf;
1336 yy_size_t n;
1337 int i;
1339 /* Get memory for full buffer, including space for trailing EOB's. */
1340 n = len + 2;
1341 buf = (char *) yy_flex_alloc( n );
1342 if ( ! buf )
1343 YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
1345 for ( i = 0; i < len; ++i )
1346 buf[i] = bytes[i];
1348 buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
1350 b = yy_scan_buffer( buf, n );
1351 if ( ! b )
1352 YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
1354 /* It's okay to grow etc. this buffer, and we should throw it
1355 * away when we're done.
1356 */
1357 b->yy_is_our_buffer = 1;
1359 return b;
1360 }
1361 %*
1362 #endif
1365 #ifndef YY_NO_PUSH_STATE
1366 %-
1367 #ifdef YY_USE_PROTOS
1368 static void yy_push_state( int new_state )
1369 #else
1370 static void yy_push_state( new_state )
1371 int new_state;
1372 #endif
1373 %+
1374 void yyFlexLexer::yy_push_state( int new_state )
1375 %*
1376 {
1377 if ( yy_start_stack_ptr >= yy_start_stack_depth )
1378 {
1379 yy_size_t new_size;
1381 yy_start_stack_depth += YY_START_STACK_INCR;
1382 new_size = yy_start_stack_depth * sizeof( int );
1384 if ( ! yy_start_stack )
1385 yy_start_stack = (int *) yy_flex_alloc( new_size );
1387 else
1388 yy_start_stack = (int *) yy_flex_realloc(
1389 (void *) yy_start_stack, new_size );
1391 if ( ! yy_start_stack )
1392 YY_FATAL_ERROR(
1393 "out of memory expanding start-condition stack" );
1394 }
1396 yy_start_stack[yy_start_stack_ptr++] = YY_START;
1398 BEGIN(new_state);
1399 }
1400 #endif
1403 #ifndef YY_NO_POP_STATE
1404 %-
1405 #ifdef YY_USE_PROTOS
1406 static void yy_pop_state( void )
1407 #else
1408 static void yy_pop_state()
1409 #endif
1410 %+
1411 void yyFlexLexer::yy_pop_state()
1412 %*
1413 {
1414 if ( --yy_start_stack_ptr < 0 )
1415 YY_FATAL_ERROR( "start-condition stack underflow" );
1417 BEGIN(yy_start_stack[yy_start_stack_ptr]);
1418 }
1419 #endif
1422 #ifndef YY_NO_TOP_STATE
1423 %-
1424 #ifdef YY_USE_PROTOS
1425 static int yy_top_state( void )
1426 #else
1427 static int yy_top_state()
1428 #endif
1429 %+
1430 int yyFlexLexer::yy_top_state()
1431 %*
1432 {
1433 return yy_start_stack[yy_start_stack_ptr - 1];
1434 }
1435 #endif
1437 #ifndef YY_EXIT_FAILURE
1438 #define YY_EXIT_FAILURE 2
1439 #endif
1441 %-
1442 #ifdef YY_USE_PROTOS
1443 static void yy_fatal_error( yyconst char msg[] )
1444 #else
1445 static void yy_fatal_error( msg )
1446 char msg[];
1447 #endif
1448 {
1449 (void) fprintf( stderr, "%s\n", msg );
1450 exit( YY_EXIT_FAILURE );
1451 }
1453 %+
1455 void yyFlexLexer::LexerError( yyconst char msg[] )
1456 {
1457 cerr << msg << '\n';
1458 exit( YY_EXIT_FAILURE );
1459 }
1460 %*
1463 /* Redefine yyless() so it works in section 3 code. */
1465 #undef yyless
1466 #define yyless(n) \
1467 do \
1468 { \
1469 /* Undo effects of setting up yytext. */ \
1470 yytext[yyleng] = yy_hold_char; \
1471 yy_c_buf_p = yytext + n; \
1472 yy_hold_char = *yy_c_buf_p; \
1473 *yy_c_buf_p = '\0'; \
1474 yyleng = n; \
1475 } \
1476 while ( 0 )
1479 /* Internal utility routines. */
1481 #ifndef yytext_ptr
1482 #ifdef YY_USE_PROTOS
1483 static void yy_flex_strncpy( char *s1, yyconst char *s2, int n )
1484 #else
1485 static void yy_flex_strncpy( s1, s2, n )
1486 char *s1;
1487 yyconst char *s2;
1488 int n;
1489 #endif
1490 {
1491 int i;
1492 for ( i = 0; i < n; ++i )
1493 s1[i] = s2[i];
1494 }
1495 #endif
1497 #ifdef YY_NEED_STRLEN
1498 #ifdef YY_USE_PROTOS
1499 static int yy_flex_strlen( yyconst char *s )
1500 #else
1501 static int yy_flex_strlen( s )
1502 yyconst char *s;
1503 #endif
1504 {
1505 int n;
1506 for ( n = 0; s[n]; ++n )
1507 ;
1509 return n;
1510 }
1511 #endif
1514 #ifdef YY_USE_PROTOS
1515 static void *yy_flex_alloc( yy_size_t size )
1516 #else
1517 static void *yy_flex_alloc( size )
1518 yy_size_t size;
1519 #endif
1520 {
1521 return (void *) malloc( size );
1522 }
1524 #ifdef YY_USE_PROTOS
1525 static void *yy_flex_realloc( void *ptr, yy_size_t size )
1526 #else
1527 static void *yy_flex_realloc( ptr, size )
1528 void *ptr;
1529 yy_size_t size;
1530 #endif
1531 {
1532 /* The cast to (char *) in the following accommodates both
1533 * implementations that use char* generic pointers, and those
1534 * that use void* generic pointers. It works with the latter
1535 * because both ANSI C and C++ allow castless assignment from
1536 * any pointer type to void*, and deal with argument conversions
1537 * as though doing an assignment.
1538 */
1539 return (void *) realloc( (char *) ptr, size );
1540 }
1542 #ifdef YY_USE_PROTOS
1543 static void yy_flex_free( void *ptr )
1544 #else
1545 static void yy_flex_free( ptr )
1546 void *ptr;
1547 #endif
1548 {
1549 free( ptr );
1550 }
1552 #if YY_MAIN
1553 int main()
1554 {
1555 yylex();
1556 return 0;
1557 }
1558 #endif