ia64/linux-2.6.18-xen.hg

view scripts/kconfig/lex.zconf.c_shipped @ 897:329ea0ccb344

balloon: try harder to balloon up under memory pressure.

Currently if the balloon driver is unable to increase the guest's
reservation it assumes the failure was due to reaching its full
allocation, gives up on the ballooning operation and records the limit
it reached as the "hard limit". The driver will not try again until
the target is set again (even to the same value).

However it is possible that ballooning has in fact failed due to
memory pressure in the host and therefore it is desirable to keep
attempting to reach the target in case memory becomes available. The
most likely scenario is that some guests are ballooning down while
others are ballooning up and therefore there is temporary memory
pressure while things stabilise. You would not expect a well behaved
toolstack to ask a domain to balloon to more than its allocation nor
would you expect it to deliberately over-commit memory by setting
balloon targets which exceed the total host memory.

This patch drops the concept of a hard limit and causes the balloon
driver to retry increasing the reservation on a timer in the same
manner as when decreasing the reservation.

Also if we partially succeed in increasing the reservation
(i.e. receive less pages than we asked for) then we may as well keep
those pages rather than returning them to Xen.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jun 05 14:01:20 2009 +0100 (2009-06-05)
parents 831230e53067
children
line source
2 #line 3 "scripts/kconfig/lex.zconf.c"
4 #define YY_INT_ALIGNED short int
6 /* A lexical scanner generated by flex */
8 #define FLEX_SCANNER
9 #define YY_FLEX_MAJOR_VERSION 2
10 #define YY_FLEX_MINOR_VERSION 5
11 #define YY_FLEX_SUBMINOR_VERSION 33
12 #if YY_FLEX_SUBMINOR_VERSION > 0
13 #define FLEX_BETA
14 #endif
16 /* First, we deal with platform-specific or compiler-specific issues. */
18 /* begin standard C headers. */
19 #include <stdio.h>
20 #include <string.h>
21 #include <errno.h>
22 #include <stdlib.h>
24 /* end standard C headers. */
26 /* flex integer type definitions */
28 #ifndef FLEXINT_H
29 #define FLEXINT_H
31 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
33 #if __STDC_VERSION__ >= 199901L
35 /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
36 * if you want the limit (max/min) macros for int types.
37 */
38 #ifndef __STDC_LIMIT_MACROS
39 #define __STDC_LIMIT_MACROS 1
40 #endif
42 #include <inttypes.h>
43 typedef int8_t flex_int8_t;
44 typedef uint8_t flex_uint8_t;
45 typedef int16_t flex_int16_t;
46 typedef uint16_t flex_uint16_t;
47 typedef int32_t flex_int32_t;
48 typedef uint32_t flex_uint32_t;
49 #else
50 typedef signed char flex_int8_t;
51 typedef short int flex_int16_t;
52 typedef int flex_int32_t;
53 typedef unsigned char flex_uint8_t;
54 typedef unsigned short int flex_uint16_t;
55 typedef unsigned int flex_uint32_t;
56 #endif /* ! C99 */
58 /* Limits of integral types. */
59 #ifndef INT8_MIN
60 #define INT8_MIN (-128)
61 #endif
62 #ifndef INT16_MIN
63 #define INT16_MIN (-32767-1)
64 #endif
65 #ifndef INT32_MIN
66 #define INT32_MIN (-2147483647-1)
67 #endif
68 #ifndef INT8_MAX
69 #define INT8_MAX (127)
70 #endif
71 #ifndef INT16_MAX
72 #define INT16_MAX (32767)
73 #endif
74 #ifndef INT32_MAX
75 #define INT32_MAX (2147483647)
76 #endif
77 #ifndef UINT8_MAX
78 #define UINT8_MAX (255U)
79 #endif
80 #ifndef UINT16_MAX
81 #define UINT16_MAX (65535U)
82 #endif
83 #ifndef UINT32_MAX
84 #define UINT32_MAX (4294967295U)
85 #endif
87 #endif /* ! FLEXINT_H */
89 #ifdef __cplusplus
91 /* The "const" storage-class-modifier is valid. */
92 #define YY_USE_CONST
94 #else /* ! __cplusplus */
96 #if __STDC__
98 #define YY_USE_CONST
100 #endif /* __STDC__ */
101 #endif /* ! __cplusplus */
103 #ifdef YY_USE_CONST
104 #define yyconst const
105 #else
106 #define yyconst
107 #endif
109 /* Returned upon end-of-file. */
110 #define YY_NULL 0
112 /* Promotes a possibly negative, possibly signed char to an unsigned
113 * integer for use as an array index. If the signed char is negative,
114 * we want to instead treat it as an 8-bit unsigned char, hence the
115 * double cast.
116 */
117 #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
119 /* Enter a start condition. This macro really ought to take a parameter,
120 * but we do it the disgusting crufty way forced on us by the ()-less
121 * definition of BEGIN.
122 */
123 #define BEGIN (yy_start) = 1 + 2 *
125 /* Translate the current start state into a value that can be later handed
126 * to BEGIN to return to the state. The YYSTATE alias is for lex
127 * compatibility.
128 */
129 #define YY_START (((yy_start) - 1) / 2)
130 #define YYSTATE YY_START
132 /* Action number for EOF rule of a given start state. */
133 #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
135 /* Special action meaning "start processing a new file". */
136 #define YY_NEW_FILE zconfrestart(zconfin )
138 #define YY_END_OF_BUFFER_CHAR 0
140 /* Size of default input buffer. */
141 #ifndef YY_BUF_SIZE
142 #define YY_BUF_SIZE 16384
143 #endif
145 /* The state buf must be large enough to hold one state per character in the main buffer.
146 */
147 #define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
149 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
150 #define YY_TYPEDEF_YY_BUFFER_STATE
151 typedef struct yy_buffer_state *YY_BUFFER_STATE;
152 #endif
154 extern int zconfleng;
156 extern FILE *zconfin, *zconfout;
158 #define EOB_ACT_CONTINUE_SCAN 0
159 #define EOB_ACT_END_OF_FILE 1
160 #define EOB_ACT_LAST_MATCH 2
162 #define YY_LESS_LINENO(n)
164 /* Return all but the first "n" matched characters back to the input stream. */
165 #define yyless(n) \
166 do \
167 { \
168 /* Undo effects of setting up zconftext. */ \
169 int yyless_macro_arg = (n); \
170 YY_LESS_LINENO(yyless_macro_arg);\
171 *yy_cp = (yy_hold_char); \
172 YY_RESTORE_YY_MORE_OFFSET \
173 (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
174 YY_DO_BEFORE_ACTION; /* set up zconftext again */ \
175 } \
176 while ( 0 )
178 #define unput(c) yyunput( c, (yytext_ptr) )
180 /* The following is because we cannot portably get our hands on size_t
181 * (without autoconf's help, which isn't available because we want
182 * flex-generated scanners to compile on their own).
183 */
185 #ifndef YY_TYPEDEF_YY_SIZE_T
186 #define YY_TYPEDEF_YY_SIZE_T
187 typedef unsigned int yy_size_t;
188 #endif
190 #ifndef YY_STRUCT_YY_BUFFER_STATE
191 #define YY_STRUCT_YY_BUFFER_STATE
192 struct yy_buffer_state
193 {
194 FILE *yy_input_file;
196 char *yy_ch_buf; /* input buffer */
197 char *yy_buf_pos; /* current position in input buffer */
199 /* Size of input buffer in bytes, not including room for EOB
200 * characters.
201 */
202 yy_size_t yy_buf_size;
204 /* Number of characters read into yy_ch_buf, not including EOB
205 * characters.
206 */
207 int yy_n_chars;
209 /* Whether we "own" the buffer - i.e., we know we created it,
210 * and can realloc() it to grow it, and should free() it to
211 * delete it.
212 */
213 int yy_is_our_buffer;
215 /* Whether this is an "interactive" input source; if so, and
216 * if we're using stdio for input, then we want to use getc()
217 * instead of fread(), to make sure we stop fetching input after
218 * each newline.
219 */
220 int yy_is_interactive;
222 /* Whether we're considered to be at the beginning of a line.
223 * If so, '^' rules will be active on the next match, otherwise
224 * not.
225 */
226 int yy_at_bol;
228 int yy_bs_lineno; /**< The line count. */
229 int yy_bs_column; /**< The column count. */
231 /* Whether to try to fill the input buffer when we reach the
232 * end of it.
233 */
234 int yy_fill_buffer;
236 int yy_buffer_status;
238 #define YY_BUFFER_NEW 0
239 #define YY_BUFFER_NORMAL 1
240 /* When an EOF's been seen but there's still some text to process
241 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
242 * shouldn't try reading from the input source any more. We might
243 * still have a bunch of tokens to match, though, because of
244 * possible backing-up.
245 *
246 * When we actually see the EOF, we change the status to "new"
247 * (via zconfrestart()), so that the user can continue scanning by
248 * just pointing zconfin at a new input file.
249 */
250 #define YY_BUFFER_EOF_PENDING 2
252 };
253 #endif /* !YY_STRUCT_YY_BUFFER_STATE */
255 /* Stack of input buffers. */
256 static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
257 static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
258 static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
260 /* We provide macros for accessing buffer states in case in the
261 * future we want to put the buffer states in a more general
262 * "scanner state".
263 *
264 * Returns the top of the stack, or NULL.
265 */
266 #define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
267 ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
268 : NULL)
270 /* Same as previous macro, but useful when we know that the buffer stack is not
271 * NULL or when we need an lvalue. For internal use only.
272 */
273 #define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
275 /* yy_hold_char holds the character lost when zconftext is formed. */
276 static char yy_hold_char;
277 static int yy_n_chars; /* number of characters read into yy_ch_buf */
278 int zconfleng;
280 /* Points to current character in buffer. */
281 static char *yy_c_buf_p = (char *) 0;
282 static int yy_init = 0; /* whether we need to initialize */
283 static int yy_start = 0; /* start state number */
285 /* Flag which is used to allow zconfwrap()'s to do buffer switches
286 * instead of setting up a fresh zconfin. A bit of a hack ...
287 */
288 static int yy_did_buffer_switch_on_eof;
290 void zconfrestart (FILE *input_file );
291 void zconf_switch_to_buffer (YY_BUFFER_STATE new_buffer );
292 YY_BUFFER_STATE zconf_create_buffer (FILE *file,int size );
293 void zconf_delete_buffer (YY_BUFFER_STATE b );
294 void zconf_flush_buffer (YY_BUFFER_STATE b );
295 void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer );
296 void zconfpop_buffer_state (void );
298 static void zconfensure_buffer_stack (void );
299 static void zconf_load_buffer_state (void );
300 static void zconf_init_buffer (YY_BUFFER_STATE b,FILE *file );
302 #define YY_FLUSH_BUFFER zconf_flush_buffer(YY_CURRENT_BUFFER )
304 YY_BUFFER_STATE zconf_scan_buffer (char *base,yy_size_t size );
305 YY_BUFFER_STATE zconf_scan_string (yyconst char *yy_str );
306 YY_BUFFER_STATE zconf_scan_bytes (yyconst char *bytes,int len );
308 void *zconfalloc (yy_size_t );
309 void *zconfrealloc (void *,yy_size_t );
310 void zconffree (void * );
312 #define yy_new_buffer zconf_create_buffer
314 #define yy_set_interactive(is_interactive) \
315 { \
316 if ( ! YY_CURRENT_BUFFER ){ \
317 zconfensure_buffer_stack (); \
318 YY_CURRENT_BUFFER_LVALUE = \
319 zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
320 } \
321 YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
322 }
324 #define yy_set_bol(at_bol) \
325 { \
326 if ( ! YY_CURRENT_BUFFER ){\
327 zconfensure_buffer_stack (); \
328 YY_CURRENT_BUFFER_LVALUE = \
329 zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
330 } \
331 YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
332 }
334 #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
336 /* Begin user sect3 */
338 #define zconfwrap() 1
339 #define YY_SKIP_YYWRAP
341 typedef unsigned char YY_CHAR;
343 FILE *zconfin = (FILE *) 0, *zconfout = (FILE *) 0;
345 typedef int yy_state_type;
347 extern int zconflineno;
349 int zconflineno = 1;
351 extern char *zconftext;
352 #define yytext_ptr zconftext
353 static yyconst flex_int16_t yy_nxt[][17] =
354 {
355 {
356 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
357 0, 0, 0, 0, 0, 0, 0
358 },
360 {
361 11, 12, 13, 14, 12, 12, 15, 12, 12, 12,
362 12, 12, 12, 12, 12, 12, 12
363 },
365 {
366 11, 12, 13, 14, 12, 12, 15, 12, 12, 12,
367 12, 12, 12, 12, 12, 12, 12
368 },
370 {
371 11, 16, 16, 17, 16, 16, 16, 16, 16, 16,
372 16, 16, 16, 18, 16, 16, 16
373 },
375 {
376 11, 16, 16, 17, 16, 16, 16, 16, 16, 16,
377 16, 16, 16, 18, 16, 16, 16
379 },
381 {
382 11, 19, 20, 21, 19, 19, 19, 19, 19, 19,
383 19, 19, 19, 19, 19, 19, 19
384 },
386 {
387 11, 19, 20, 21, 19, 19, 19, 19, 19, 19,
388 19, 19, 19, 19, 19, 19, 19
389 },
391 {
392 11, 22, 22, 23, 22, 24, 22, 22, 24, 22,
393 22, 22, 22, 22, 22, 25, 22
394 },
396 {
397 11, 22, 22, 23, 22, 24, 22, 22, 24, 22,
398 22, 22, 22, 22, 22, 25, 22
399 },
401 {
402 11, 26, 26, 27, 28, 29, 30, 31, 29, 32,
403 33, 34, 35, 35, 36, 37, 38
405 },
407 {
408 11, 26, 26, 27, 28, 29, 30, 31, 29, 32,
409 33, 34, 35, 35, 36, 37, 38
410 },
412 {
413 -11, -11, -11, -11, -11, -11, -11, -11, -11, -11,
414 -11, -11, -11, -11, -11, -11, -11
415 },
417 {
418 11, -12, -12, -12, -12, -12, -12, -12, -12, -12,
419 -12, -12, -12, -12, -12, -12, -12
420 },
422 {
423 11, -13, 39, 40, -13, -13, 41, -13, -13, -13,
424 -13, -13, -13, -13, -13, -13, -13
425 },
427 {
428 11, -14, -14, -14, -14, -14, -14, -14, -14, -14,
429 -14, -14, -14, -14, -14, -14, -14
431 },
433 {
434 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
435 42, 42, 42, 42, 42, 42, 42
436 },
438 {
439 11, -16, -16, -16, -16, -16, -16, -16, -16, -16,
440 -16, -16, -16, -16, -16, -16, -16
441 },
443 {
444 11, -17, -17, -17, -17, -17, -17, -17, -17, -17,
445 -17, -17, -17, -17, -17, -17, -17
446 },
448 {
449 11, -18, -18, -18, -18, -18, -18, -18, -18, -18,
450 -18, -18, -18, 44, -18, -18, -18
451 },
453 {
454 11, 45, 45, -19, 45, 45, 45, 45, 45, 45,
455 45, 45, 45, 45, 45, 45, 45
457 },
459 {
460 11, -20, 46, 47, -20, -20, -20, -20, -20, -20,
461 -20, -20, -20, -20, -20, -20, -20
462 },
464 {
465 11, 48, -21, -21, 48, 48, 48, 48, 48, 48,
466 48, 48, 48, 48, 48, 48, 48
467 },
469 {
470 11, 49, 49, 50, 49, -22, 49, 49, -22, 49,
471 49, 49, 49, 49, 49, -22, 49
472 },
474 {
475 11, -23, -23, -23, -23, -23, -23, -23, -23, -23,
476 -23, -23, -23, -23, -23, -23, -23
477 },
479 {
480 11, -24, -24, -24, -24, -24, -24, -24, -24, -24,
481 -24, -24, -24, -24, -24, -24, -24
483 },
485 {
486 11, 51, 51, 52, 51, 51, 51, 51, 51, 51,
487 51, 51, 51, 51, 51, 51, 51
488 },
490 {
491 11, -26, -26, -26, -26, -26, -26, -26, -26, -26,
492 -26, -26, -26, -26, -26, -26, -26
493 },
495 {
496 11, -27, -27, -27, -27, -27, -27, -27, -27, -27,
497 -27, -27, -27, -27, -27, -27, -27
498 },
500 {
501 11, -28, -28, -28, -28, -28, -28, -28, -28, -28,
502 -28, -28, -28, -28, 53, -28, -28
503 },
505 {
506 11, -29, -29, -29, -29, -29, -29, -29, -29, -29,
507 -29, -29, -29, -29, -29, -29, -29
509 },
511 {
512 11, 54, 54, -30, 54, 54, 54, 54, 54, 54,
513 54, 54, 54, 54, 54, 54, 54
514 },
516 {
517 11, -31, -31, -31, -31, -31, -31, 55, -31, -31,
518 -31, -31, -31, -31, -31, -31, -31
519 },
521 {
522 11, -32, -32, -32, -32, -32, -32, -32, -32, -32,
523 -32, -32, -32, -32, -32, -32, -32
524 },
526 {
527 11, -33, -33, -33, -33, -33, -33, -33, -33, -33,
528 -33, -33, -33, -33, -33, -33, -33
529 },
531 {
532 11, -34, -34, -34, -34, -34, -34, -34, -34, -34,
533 -34, 56, 57, 57, -34, -34, -34
535 },
537 {
538 11, -35, -35, -35, -35, -35, -35, -35, -35, -35,
539 -35, 57, 57, 57, -35, -35, -35
540 },
542 {
543 11, -36, -36, -36, -36, -36, -36, -36, -36, -36,
544 -36, -36, -36, -36, -36, -36, -36
545 },
547 {
548 11, -37, -37, 58, -37, -37, -37, -37, -37, -37,
549 -37, -37, -37, -37, -37, -37, -37
550 },
552 {
553 11, -38, -38, -38, -38, -38, -38, -38, -38, -38,
554 -38, -38, -38, -38, -38, -38, 59
555 },
557 {
558 11, -39, 39, 40, -39, -39, 41, -39, -39, -39,
559 -39, -39, -39, -39, -39, -39, -39
561 },
563 {
564 11, -40, -40, -40, -40, -40, -40, -40, -40, -40,
565 -40, -40, -40, -40, -40, -40, -40
566 },
568 {
569 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
570 42, 42, 42, 42, 42, 42, 42
571 },
573 {
574 11, 42, 42, 43, 42, 42, 42, 42, 42, 42,
575 42, 42, 42, 42, 42, 42, 42
576 },
578 {
579 11, -43, -43, -43, -43, -43, -43, -43, -43, -43,
580 -43, -43, -43, -43, -43, -43, -43
581 },
583 {
584 11, -44, -44, -44, -44, -44, -44, -44, -44, -44,
585 -44, -44, -44, 44, -44, -44, -44
587 },
589 {
590 11, 45, 45, -45, 45, 45, 45, 45, 45, 45,
591 45, 45, 45, 45, 45, 45, 45
592 },
594 {
595 11, -46, 46, 47, -46, -46, -46, -46, -46, -46,
596 -46, -46, -46, -46, -46, -46, -46
597 },
599 {
600 11, 48, -47, -47, 48, 48, 48, 48, 48, 48,
601 48, 48, 48, 48, 48, 48, 48
602 },
604 {
605 11, -48, -48, -48, -48, -48, -48, -48, -48, -48,
606 -48, -48, -48, -48, -48, -48, -48
607 },
609 {
610 11, 49, 49, 50, 49, -49, 49, 49, -49, 49,
611 49, 49, 49, 49, 49, -49, 49
613 },
615 {
616 11, -50, -50, -50, -50, -50, -50, -50, -50, -50,
617 -50, -50, -50, -50, -50, -50, -50
618 },
620 {
621 11, -51, -51, 52, -51, -51, -51, -51, -51, -51,
622 -51, -51, -51, -51, -51, -51, -51
623 },
625 {
626 11, -52, -52, -52, -52, -52, -52, -52, -52, -52,
627 -52, -52, -52, -52, -52, -52, -52
628 },
630 {
631 11, -53, -53, -53, -53, -53, -53, -53, -53, -53,
632 -53, -53, -53, -53, -53, -53, -53
633 },
635 {
636 11, 54, 54, -54, 54, 54, 54, 54, 54, 54,
637 54, 54, 54, 54, 54, 54, 54
639 },
641 {
642 11, -55, -55, -55, -55, -55, -55, -55, -55, -55,
643 -55, -55, -55, -55, -55, -55, -55
644 },
646 {
647 11, -56, -56, -56, -56, -56, -56, -56, -56, -56,
648 -56, 60, 57, 57, -56, -56, -56
649 },
651 {
652 11, -57, -57, -57, -57, -57, -57, -57, -57, -57,
653 -57, 57, 57, 57, -57, -57, -57
654 },
656 {
657 11, -58, -58, -58, -58, -58, -58, -58, -58, -58,
658 -58, -58, -58, -58, -58, -58, -58
659 },
661 {
662 11, -59, -59, -59, -59, -59, -59, -59, -59, -59,
663 -59, -59, -59, -59, -59, -59, -59
665 },
667 {
668 11, -60, -60, -60, -60, -60, -60, -60, -60, -60,
669 -60, 57, 57, 57, -60, -60, -60
670 },
672 } ;
674 static yy_state_type yy_get_previous_state (void );
675 static yy_state_type yy_try_NUL_trans (yy_state_type current_state );
676 static int yy_get_next_buffer (void );
677 static void yy_fatal_error (yyconst char msg[] );
679 /* Done after the current pattern has been matched and before the
680 * corresponding action - sets up zconftext.
681 */
682 #define YY_DO_BEFORE_ACTION \
683 (yytext_ptr) = yy_bp; \
684 zconfleng = (size_t) (yy_cp - yy_bp); \
685 (yy_hold_char) = *yy_cp; \
686 *yy_cp = '\0'; \
687 (yy_c_buf_p) = yy_cp;
689 #define YY_NUM_RULES 33
690 #define YY_END_OF_BUFFER 34
691 /* This struct is not used in this scanner,
692 but its presence is necessary. */
693 struct yy_trans_info
694 {
695 flex_int32_t yy_verify;
696 flex_int32_t yy_nxt;
697 };
698 static yyconst flex_int16_t yy_accept[61] =
699 { 0,
700 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
701 34, 5, 4, 2, 3, 7, 8, 6, 32, 29,
702 31, 24, 28, 27, 26, 22, 17, 13, 16, 20,
703 22, 11, 12, 19, 19, 14, 22, 22, 4, 2,
704 3, 3, 1, 6, 32, 29, 31, 30, 24, 23,
705 26, 25, 15, 20, 9, 19, 19, 21, 10, 18
706 } ;
708 static yyconst flex_int32_t yy_ec[256] =
709 { 0,
710 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
711 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
712 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
713 1, 2, 4, 5, 6, 1, 1, 7, 8, 9,
714 10, 1, 1, 1, 11, 12, 12, 13, 13, 13,
715 13, 13, 13, 13, 13, 13, 13, 1, 1, 1,
716 14, 1, 1, 1, 13, 13, 13, 13, 13, 13,
717 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
718 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
719 1, 15, 1, 1, 13, 1, 13, 13, 13, 13,
721 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
722 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
723 13, 13, 1, 16, 1, 1, 1, 1, 1, 1,
724 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
725 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
726 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
727 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
728 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
729 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
730 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
732 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
733 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
734 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
735 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
736 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
737 1, 1, 1, 1, 1
738 } ;
740 extern int zconf_flex_debug;
741 int zconf_flex_debug = 0;
743 /* The intent behind this definition is that it'll catch
744 * any uses of REJECT which flex missed.
745 */
746 #define REJECT reject_used_but_not_detected
747 #define yymore() yymore_used_but_not_detected
748 #define YY_MORE_ADJ 0
749 #define YY_RESTORE_YY_MORE_OFFSET
750 char *zconftext;
752 /*
753 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
754 * Released under the terms of the GNU GPL v2.0.
755 */
757 #include <limits.h>
758 #include <stdio.h>
759 #include <stdlib.h>
760 #include <string.h>
761 #include <unistd.h>
763 #define LKC_DIRECT_LINK
764 #include "lkc.h"
766 #define START_STRSIZE 16
768 static struct {
769 struct file *file;
770 int lineno;
771 } current_pos;
773 static char *text;
774 static int text_size, text_asize;
776 struct buffer {
777 struct buffer *parent;
778 YY_BUFFER_STATE state;
779 };
781 struct buffer *current_buf;
783 static int last_ts, first_ts;
785 static void zconf_endhelp(void);
786 static void zconf_endfile(void);
788 void new_string(void)
789 {
790 text = malloc(START_STRSIZE);
791 text_asize = START_STRSIZE;
792 text_size = 0;
793 *text = 0;
794 }
796 void append_string(const char *str, int size)
797 {
798 int new_size = text_size + size + 1;
799 if (new_size > text_asize) {
800 new_size += START_STRSIZE - 1;
801 new_size &= -START_STRSIZE;
802 text = realloc(text, new_size);
803 text_asize = new_size;
804 }
805 memcpy(text + text_size, str, size);
806 text_size += size;
807 text[text_size] = 0;
808 }
810 void alloc_string(const char *str, int size)
811 {
812 text = malloc(size + 1);
813 memcpy(text, str, size);
814 text[size] = 0;
815 }
817 #define INITIAL 0
818 #define COMMAND 1
819 #define HELP 2
820 #define STRING 3
821 #define PARAM 4
823 #ifndef YY_NO_UNISTD_H
824 /* Special case for "unistd.h", since it is non-ANSI. We include it way
825 * down here because we want the user's section 1 to have been scanned first.
826 * The user has a chance to override it with an option.
827 */
828 #include <unistd.h>
829 #endif
831 #ifndef YY_EXTRA_TYPE
832 #define YY_EXTRA_TYPE void *
833 #endif
835 static int yy_init_globals (void );
837 /* Macros after this point can all be overridden by user definitions in
838 * section 1.
839 */
841 #ifndef YY_SKIP_YYWRAP
842 #ifdef __cplusplus
843 extern "C" int zconfwrap (void );
844 #else
845 extern int zconfwrap (void );
846 #endif
847 #endif
849 static void yyunput (int c,char *buf_ptr );
851 #ifndef yytext_ptr
852 static void yy_flex_strncpy (char *,yyconst char *,int );
853 #endif
855 #ifdef YY_NEED_STRLEN
856 static int yy_flex_strlen (yyconst char * );
857 #endif
859 #ifndef YY_NO_INPUT
861 #ifdef __cplusplus
862 static int yyinput (void );
863 #else
864 static int input (void );
865 #endif
867 #endif
869 /* Amount of stuff to slurp up with each read. */
870 #ifndef YY_READ_BUF_SIZE
871 #define YY_READ_BUF_SIZE 8192
872 #endif
874 /* Copy whatever the last rule matched to the standard output. */
875 #ifndef ECHO
876 /* This used to be an fputs(), but since the string might contain NUL's,
877 * we now use fwrite().
878 */
879 #define ECHO (void) fwrite( zconftext, zconfleng, 1, zconfout )
880 #endif
882 /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
883 * is returned in "result".
884 */
885 #ifndef YY_INPUT
886 #define YY_INPUT(buf,result,max_size) \
887 errno=0; \
888 while ( (result = read( fileno(zconfin), (char *) buf, max_size )) < 0 ) \
889 { \
890 if( errno != EINTR) \
891 { \
892 YY_FATAL_ERROR( "input in flex scanner failed" ); \
893 break; \
894 } \
895 errno=0; \
896 clearerr(zconfin); \
897 }\
898 \
900 #endif
902 /* No semi-colon after return; correct usage is to write "yyterminate();" -
903 * we don't want an extra ';' after the "return" because that will cause
904 * some compilers to complain about unreachable statements.
905 */
906 #ifndef yyterminate
907 #define yyterminate() return YY_NULL
908 #endif
910 /* Number of entries by which start-condition stack grows. */
911 #ifndef YY_START_STACK_INCR
912 #define YY_START_STACK_INCR 25
913 #endif
915 /* Report a fatal error. */
916 #ifndef YY_FATAL_ERROR
917 #define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
918 #endif
920 /* end tables serialization structures and prototypes */
922 /* Default declaration of generated scanner - a define so the user can
923 * easily add parameters.
924 */
925 #ifndef YY_DECL
926 #define YY_DECL_IS_OURS 1
928 extern int zconflex (void);
930 #define YY_DECL int zconflex (void)
931 #endif /* !YY_DECL */
933 /* Code executed at the beginning of each rule, after zconftext and zconfleng
934 * have been set up.
935 */
936 #ifndef YY_USER_ACTION
937 #define YY_USER_ACTION
938 #endif
940 /* Code executed at the end of each rule. */
941 #ifndef YY_BREAK
942 #define YY_BREAK break;
943 #endif
945 #define YY_RULE_SETUP \
946 YY_USER_ACTION
948 /** The main scanner function which does all the work.
949 */
950 YY_DECL
951 {
952 register yy_state_type yy_current_state;
953 register char *yy_cp, *yy_bp;
954 register int yy_act;
956 int str = 0;
957 int ts, i;
959 if ( !(yy_init) )
960 {
961 (yy_init) = 1;
963 #ifdef YY_USER_INIT
964 YY_USER_INIT;
965 #endif
967 if ( ! (yy_start) )
968 (yy_start) = 1; /* first start state */
970 if ( ! zconfin )
971 zconfin = stdin;
973 if ( ! zconfout )
974 zconfout = stdout;
976 if ( ! YY_CURRENT_BUFFER ) {
977 zconfensure_buffer_stack ();
978 YY_CURRENT_BUFFER_LVALUE =
979 zconf_create_buffer(zconfin,YY_BUF_SIZE );
980 }
982 zconf_load_buffer_state( );
983 }
985 while ( 1 ) /* loops until end-of-file is reached */
986 {
987 yy_cp = (yy_c_buf_p);
989 /* Support of zconftext. */
990 *yy_cp = (yy_hold_char);
992 /* yy_bp points to the position in yy_ch_buf of the start of
993 * the current run.
994 */
995 yy_bp = yy_cp;
997 yy_current_state = (yy_start);
998 yy_match:
999 while ( (yy_current_state = yy_nxt[yy_current_state][ yy_ec[YY_SC_TO_UI(*yy_cp)] ]) > 0 )
1000 ++yy_cp;
1002 yy_current_state = -yy_current_state;
1004 yy_find_action:
1005 yy_act = yy_accept[yy_current_state];
1007 YY_DO_BEFORE_ACTION;
1009 do_action: /* This label is used only to access EOF actions. */
1011 switch ( yy_act )
1012 { /* beginning of action switch */
1013 case 1:
1014 /* rule 1 can match eol */
1015 case 2:
1016 /* rule 2 can match eol */
1017 YY_RULE_SETUP
1019 current_file->lineno++;
1020 return T_EOL;
1022 YY_BREAK
1023 case 3:
1024 YY_RULE_SETUP
1026 YY_BREAK
1027 case 4:
1028 YY_RULE_SETUP
1030 BEGIN(COMMAND);
1032 YY_BREAK
1033 case 5:
1034 YY_RULE_SETUP
1036 unput(zconftext[0]);
1037 BEGIN(COMMAND);
1039 YY_BREAK
1041 case 6:
1042 YY_RULE_SETUP
1044 struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
1045 BEGIN(PARAM);
1046 current_pos.file = current_file;
1047 current_pos.lineno = current_file->lineno;
1048 if (id && id->flags & TF_COMMAND) {
1049 zconflval.id = id;
1050 return id->token;
1052 alloc_string(zconftext, zconfleng);
1053 zconflval.string = text;
1054 return T_WORD;
1056 YY_BREAK
1057 case 7:
1058 YY_RULE_SETUP
1060 YY_BREAK
1061 case 8:
1062 /* rule 8 can match eol */
1063 YY_RULE_SETUP
1065 BEGIN(INITIAL);
1066 current_file->lineno++;
1067 return T_EOL;
1069 YY_BREAK
1071 case 9:
1072 YY_RULE_SETUP
1073 return T_AND;
1074 YY_BREAK
1075 case 10:
1076 YY_RULE_SETUP
1077 return T_OR;
1078 YY_BREAK
1079 case 11:
1080 YY_RULE_SETUP
1081 return T_OPEN_PAREN;
1082 YY_BREAK
1083 case 12:
1084 YY_RULE_SETUP
1085 return T_CLOSE_PAREN;
1086 YY_BREAK
1087 case 13:
1088 YY_RULE_SETUP
1089 return T_NOT;
1090 YY_BREAK
1091 case 14:
1092 YY_RULE_SETUP
1093 return T_EQUAL;
1094 YY_BREAK
1095 case 15:
1096 YY_RULE_SETUP
1097 return T_UNEQUAL;
1098 YY_BREAK
1099 case 16:
1100 YY_RULE_SETUP
1102 str = zconftext[0];
1103 new_string();
1104 BEGIN(STRING);
1106 YY_BREAK
1107 case 17:
1108 /* rule 17 can match eol */
1109 YY_RULE_SETUP
1110 BEGIN(INITIAL); current_file->lineno++; return T_EOL;
1111 YY_BREAK
1112 case 18:
1113 YY_RULE_SETUP
1114 /* ignore */
1115 YY_BREAK
1116 case 19:
1117 YY_RULE_SETUP
1119 struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
1120 if (id && id->flags & TF_PARAM) {
1121 zconflval.id = id;
1122 return id->token;
1124 alloc_string(zconftext, zconfleng);
1125 zconflval.string = text;
1126 return T_WORD;
1128 YY_BREAK
1129 case 20:
1130 YY_RULE_SETUP
1131 /* comment */
1132 YY_BREAK
1133 case 21:
1134 /* rule 21 can match eol */
1135 YY_RULE_SETUP
1136 current_file->lineno++;
1137 YY_BREAK
1138 case 22:
1139 YY_RULE_SETUP
1141 YY_BREAK
1142 case YY_STATE_EOF(PARAM):
1144 BEGIN(INITIAL);
1146 YY_BREAK
1148 case 23:
1149 /* rule 23 can match eol */
1150 *yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
1151 (yy_c_buf_p) = yy_cp -= 1;
1152 YY_DO_BEFORE_ACTION; /* set up zconftext again */
1153 YY_RULE_SETUP
1155 append_string(zconftext, zconfleng);
1156 zconflval.string = text;
1157 return T_WORD_QUOTE;
1159 YY_BREAK
1160 case 24:
1161 YY_RULE_SETUP
1163 append_string(zconftext, zconfleng);
1165 YY_BREAK
1166 case 25:
1167 /* rule 25 can match eol */
1168 *yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
1169 (yy_c_buf_p) = yy_cp -= 1;
1170 YY_DO_BEFORE_ACTION; /* set up zconftext again */
1171 YY_RULE_SETUP
1173 append_string(zconftext + 1, zconfleng - 1);
1174 zconflval.string = text;
1175 return T_WORD_QUOTE;
1177 YY_BREAK
1178 case 26:
1179 YY_RULE_SETUP
1181 append_string(zconftext + 1, zconfleng - 1);
1183 YY_BREAK
1184 case 27:
1185 YY_RULE_SETUP
1187 if (str == zconftext[0]) {
1188 BEGIN(PARAM);
1189 zconflval.string = text;
1190 return T_WORD_QUOTE;
1191 } else
1192 append_string(zconftext, 1);
1194 YY_BREAK
1195 case 28:
1196 /* rule 28 can match eol */
1197 YY_RULE_SETUP
1199 printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
1200 current_file->lineno++;
1201 BEGIN(INITIAL);
1202 return T_EOL;
1204 YY_BREAK
1205 case YY_STATE_EOF(STRING):
1207 BEGIN(INITIAL);
1209 YY_BREAK
1211 case 29:
1212 YY_RULE_SETUP
1214 ts = 0;
1215 for (i = 0; i < zconfleng; i++) {
1216 if (zconftext[i] == '\t')
1217 ts = (ts & ~7) + 8;
1218 else
1219 ts++;
1221 last_ts = ts;
1222 if (first_ts) {
1223 if (ts < first_ts) {
1224 zconf_endhelp();
1225 return T_HELPTEXT;
1227 ts -= first_ts;
1228 while (ts > 8) {
1229 append_string(" ", 8);
1230 ts -= 8;
1232 append_string(" ", ts);
1235 YY_BREAK
1236 case 30:
1237 /* rule 30 can match eol */
1238 *yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
1239 (yy_c_buf_p) = yy_cp -= 1;
1240 YY_DO_BEFORE_ACTION; /* set up zconftext again */
1241 YY_RULE_SETUP
1243 current_file->lineno++;
1244 zconf_endhelp();
1245 return T_HELPTEXT;
1247 YY_BREAK
1248 case 31:
1249 /* rule 31 can match eol */
1250 YY_RULE_SETUP
1252 current_file->lineno++;
1253 append_string("\n", 1);
1255 YY_BREAK
1256 case 32:
1257 YY_RULE_SETUP
1259 append_string(zconftext, zconfleng);
1260 if (!first_ts)
1261 first_ts = last_ts;
1263 YY_BREAK
1264 case YY_STATE_EOF(HELP):
1266 zconf_endhelp();
1267 return T_HELPTEXT;
1269 YY_BREAK
1271 case YY_STATE_EOF(INITIAL):
1272 case YY_STATE_EOF(COMMAND):
1274 if (current_file) {
1275 zconf_endfile();
1276 return T_EOL;
1278 fclose(zconfin);
1279 yyterminate();
1281 YY_BREAK
1282 case 33:
1283 YY_RULE_SETUP
1284 YY_FATAL_ERROR( "flex scanner jammed" );
1285 YY_BREAK
1287 case YY_END_OF_BUFFER:
1289 /* Amount of text matched not including the EOB char. */
1290 int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
1292 /* Undo the effects of YY_DO_BEFORE_ACTION. */
1293 *yy_cp = (yy_hold_char);
1294 YY_RESTORE_YY_MORE_OFFSET
1296 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
1298 /* We're scanning a new file or input source. It's
1299 * possible that this happened because the user
1300 * just pointed zconfin at a new source and called
1301 * zconflex(). If so, then we have to assure
1302 * consistency between YY_CURRENT_BUFFER and our
1303 * globals. Here is the right place to do so, because
1304 * this is the first action (other than possibly a
1305 * back-up) that will match for the new input source.
1306 */
1307 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
1308 YY_CURRENT_BUFFER_LVALUE->yy_input_file = zconfin;
1309 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
1312 /* Note that here we test for yy_c_buf_p "<=" to the position
1313 * of the first EOB in the buffer, since yy_c_buf_p will
1314 * already have been incremented past the NUL character
1315 * (since all states make transitions on EOB to the
1316 * end-of-buffer state). Contrast this with the test
1317 * in input().
1318 */
1319 if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
1320 { /* This was really a NUL. */
1321 yy_state_type yy_next_state;
1323 (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
1325 yy_current_state = yy_get_previous_state( );
1327 /* Okay, we're now positioned to make the NUL
1328 * transition. We couldn't have
1329 * yy_get_previous_state() go ahead and do it
1330 * for us because it doesn't know how to deal
1331 * with the possibility of jamming (and we don't
1332 * want to build jamming into it because then it
1333 * will run more slowly).
1334 */
1336 yy_next_state = yy_try_NUL_trans( yy_current_state );
1338 yy_bp = (yytext_ptr) + YY_MORE_ADJ;
1340 if ( yy_next_state )
1342 /* Consume the NUL. */
1343 yy_cp = ++(yy_c_buf_p);
1344 yy_current_state = yy_next_state;
1345 goto yy_match;
1348 else
1350 yy_cp = (yy_c_buf_p);
1351 goto yy_find_action;
1355 else switch ( yy_get_next_buffer( ) )
1357 case EOB_ACT_END_OF_FILE:
1359 (yy_did_buffer_switch_on_eof) = 0;
1361 if ( zconfwrap( ) )
1363 /* Note: because we've taken care in
1364 * yy_get_next_buffer() to have set up
1365 * zconftext, we can now set up
1366 * yy_c_buf_p so that if some total
1367 * hoser (like flex itself) wants to
1368 * call the scanner after we return the
1369 * YY_NULL, it'll still work - another
1370 * YY_NULL will get returned.
1371 */
1372 (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
1374 yy_act = YY_STATE_EOF(YY_START);
1375 goto do_action;
1378 else
1380 if ( ! (yy_did_buffer_switch_on_eof) )
1381 YY_NEW_FILE;
1383 break;
1386 case EOB_ACT_CONTINUE_SCAN:
1387 (yy_c_buf_p) =
1388 (yytext_ptr) + yy_amount_of_matched_text;
1390 yy_current_state = yy_get_previous_state( );
1392 yy_cp = (yy_c_buf_p);
1393 yy_bp = (yytext_ptr) + YY_MORE_ADJ;
1394 goto yy_match;
1396 case EOB_ACT_LAST_MATCH:
1397 (yy_c_buf_p) =
1398 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
1400 yy_current_state = yy_get_previous_state( );
1402 yy_cp = (yy_c_buf_p);
1403 yy_bp = (yytext_ptr) + YY_MORE_ADJ;
1404 goto yy_find_action;
1406 break;
1409 default:
1410 YY_FATAL_ERROR(
1411 "fatal flex scanner internal error--no action found" );
1412 } /* end of action switch */
1413 } /* end of scanning one token */
1414 } /* end of zconflex */
1416 /* yy_get_next_buffer - try to read in a new buffer
1418 * Returns a code representing an action:
1419 * EOB_ACT_LAST_MATCH -
1420 * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
1421 * EOB_ACT_END_OF_FILE - end of file
1422 */
1423 static int yy_get_next_buffer (void)
1425 register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
1426 register char *source = (yytext_ptr);
1427 register int number_to_move, i;
1428 int ret_val;
1430 if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
1431 YY_FATAL_ERROR(
1432 "fatal flex scanner internal error--end of buffer missed" );
1434 if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
1435 { /* Don't try to fill the buffer, so this is an EOF. */
1436 if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
1438 /* We matched a single character, the EOB, so
1439 * treat this as a final EOF.
1440 */
1441 return EOB_ACT_END_OF_FILE;
1444 else
1446 /* We matched some text prior to the EOB, first
1447 * process it.
1448 */
1449 return EOB_ACT_LAST_MATCH;
1453 /* Try to read more data. */
1455 /* First move last chars to start of buffer. */
1456 number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
1458 for ( i = 0; i < number_to_move; ++i )
1459 *(dest++) = *(source++);
1461 if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
1462 /* don't do the read, it's not guaranteed to return an EOF,
1463 * just force an EOF
1464 */
1465 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
1467 else
1469 int num_to_read =
1470 YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
1472 while ( num_to_read <= 0 )
1473 { /* Not enough room in the buffer - grow it. */
1475 /* just a shorter name for the current buffer */
1476 YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
1478 int yy_c_buf_p_offset =
1479 (int) ((yy_c_buf_p) - b->yy_ch_buf);
1481 if ( b->yy_is_our_buffer )
1483 int new_size = b->yy_buf_size * 2;
1485 if ( new_size <= 0 )
1486 b->yy_buf_size += b->yy_buf_size / 8;
1487 else
1488 b->yy_buf_size *= 2;
1490 b->yy_ch_buf = (char *)
1491 /* Include room in for 2 EOB chars. */
1492 zconfrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 );
1494 else
1495 /* Can't grow it, we don't own it. */
1496 b->yy_ch_buf = 0;
1498 if ( ! b->yy_ch_buf )
1499 YY_FATAL_ERROR(
1500 "fatal error - scanner input buffer overflow" );
1502 (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
1504 num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
1505 number_to_move - 1;
1509 if ( num_to_read > YY_READ_BUF_SIZE )
1510 num_to_read = YY_READ_BUF_SIZE;
1512 /* Read in more data. */
1513 YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
1514 (yy_n_chars), num_to_read );
1516 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
1519 if ( (yy_n_chars) == 0 )
1521 if ( number_to_move == YY_MORE_ADJ )
1523 ret_val = EOB_ACT_END_OF_FILE;
1524 zconfrestart(zconfin );
1527 else
1529 ret_val = EOB_ACT_LAST_MATCH;
1530 YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
1531 YY_BUFFER_EOF_PENDING;
1535 else
1536 ret_val = EOB_ACT_CONTINUE_SCAN;
1538 (yy_n_chars) += number_to_move;
1539 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
1540 YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
1542 (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
1544 return ret_val;
1547 /* yy_get_previous_state - get the state just before the EOB char was reached */
1549 static yy_state_type yy_get_previous_state (void)
1551 register yy_state_type yy_current_state;
1552 register char *yy_cp;
1554 yy_current_state = (yy_start);
1556 for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
1558 yy_current_state = yy_nxt[yy_current_state][(*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1)];
1561 return yy_current_state;
1564 /* yy_try_NUL_trans - try to make a transition on the NUL character
1566 * synopsis
1567 * next_state = yy_try_NUL_trans( current_state );
1568 */
1569 static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state )
1571 register int yy_is_jam;
1573 yy_current_state = yy_nxt[yy_current_state][1];
1574 yy_is_jam = (yy_current_state <= 0);
1576 return yy_is_jam ? 0 : yy_current_state;
1579 static void yyunput (int c, register char * yy_bp )
1581 register char *yy_cp;
1583 yy_cp = (yy_c_buf_p);
1585 /* undo effects of setting up zconftext */
1586 *yy_cp = (yy_hold_char);
1588 if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
1589 { /* need to shift things up to make room */
1590 /* +2 for EOB chars. */
1591 register int number_to_move = (yy_n_chars) + 2;
1592 register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
1593 YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
1594 register char *source =
1595 &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
1597 while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
1598 *--dest = *--source;
1600 yy_cp += (int) (dest - source);
1601 yy_bp += (int) (dest - source);
1602 YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
1603 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
1605 if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
1606 YY_FATAL_ERROR( "flex scanner push-back overflow" );
1609 *--yy_cp = (char) c;
1611 (yytext_ptr) = yy_bp;
1612 (yy_hold_char) = *yy_cp;
1613 (yy_c_buf_p) = yy_cp;
1616 #ifndef YY_NO_INPUT
1617 #ifdef __cplusplus
1618 static int yyinput (void)
1619 #else
1620 static int input (void)
1621 #endif
1624 int c;
1626 *(yy_c_buf_p) = (yy_hold_char);
1628 if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
1630 /* yy_c_buf_p now points to the character we want to return.
1631 * If this occurs *before* the EOB characters, then it's a
1632 * valid NUL; if not, then we've hit the end of the buffer.
1633 */
1634 if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
1635 /* This was really a NUL. */
1636 *(yy_c_buf_p) = '\0';
1638 else
1639 { /* need more input */
1640 int offset = (yy_c_buf_p) - (yytext_ptr);
1641 ++(yy_c_buf_p);
1643 switch ( yy_get_next_buffer( ) )
1645 case EOB_ACT_LAST_MATCH:
1646 /* This happens because yy_g_n_b()
1647 * sees that we've accumulated a
1648 * token and flags that we need to
1649 * try matching the token before
1650 * proceeding. But for input(),
1651 * there's no matching to consider.
1652 * So convert the EOB_ACT_LAST_MATCH
1653 * to EOB_ACT_END_OF_FILE.
1654 */
1656 /* Reset buffer status. */
1657 zconfrestart(zconfin );
1659 /*FALLTHROUGH*/
1661 case EOB_ACT_END_OF_FILE:
1663 if ( zconfwrap( ) )
1664 return EOF;
1666 if ( ! (yy_did_buffer_switch_on_eof) )
1667 YY_NEW_FILE;
1668 #ifdef __cplusplus
1669 return yyinput();
1670 #else
1671 return input();
1672 #endif
1675 case EOB_ACT_CONTINUE_SCAN:
1676 (yy_c_buf_p) = (yytext_ptr) + offset;
1677 break;
1682 c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */
1683 *(yy_c_buf_p) = '\0'; /* preserve zconftext */
1684 (yy_hold_char) = *++(yy_c_buf_p);
1686 return c;
1688 #endif /* ifndef YY_NO_INPUT */
1690 /** Immediately switch to a different input stream.
1691 * @param input_file A readable stream.
1693 * @note This function does not reset the start condition to @c INITIAL .
1694 */
1695 void zconfrestart (FILE * input_file )
1698 if ( ! YY_CURRENT_BUFFER ){
1699 zconfensure_buffer_stack ();
1700 YY_CURRENT_BUFFER_LVALUE =
1701 zconf_create_buffer(zconfin,YY_BUF_SIZE );
1704 zconf_init_buffer(YY_CURRENT_BUFFER,input_file );
1705 zconf_load_buffer_state( );
1708 /** Switch to a different input buffer.
1709 * @param new_buffer The new input buffer.
1711 */
1712 void zconf_switch_to_buffer (YY_BUFFER_STATE new_buffer )
1715 /* TODO. We should be able to replace this entire function body
1716 * with
1717 * zconfpop_buffer_state();
1718 * zconfpush_buffer_state(new_buffer);
1719 */
1720 zconfensure_buffer_stack ();
1721 if ( YY_CURRENT_BUFFER == new_buffer )
1722 return;
1724 if ( YY_CURRENT_BUFFER )
1726 /* Flush out information for old buffer. */
1727 *(yy_c_buf_p) = (yy_hold_char);
1728 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
1729 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
1732 YY_CURRENT_BUFFER_LVALUE = new_buffer;
1733 zconf_load_buffer_state( );
1735 /* We don't actually know whether we did this switch during
1736 * EOF (zconfwrap()) processing, but the only time this flag
1737 * is looked at is after zconfwrap() is called, so it's safe
1738 * to go ahead and always set it.
1739 */
1740 (yy_did_buffer_switch_on_eof) = 1;
1743 static void zconf_load_buffer_state (void)
1745 (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
1746 (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
1747 zconfin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
1748 (yy_hold_char) = *(yy_c_buf_p);
1751 /** Allocate and initialize an input buffer state.
1752 * @param file A readable stream.
1753 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
1755 * @return the allocated buffer state.
1756 */
1757 YY_BUFFER_STATE zconf_create_buffer (FILE * file, int size )
1759 YY_BUFFER_STATE b;
1761 b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state ) );
1762 if ( ! b )
1763 YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
1765 b->yy_buf_size = size;
1767 /* yy_ch_buf has to be 2 characters longer than the size given because
1768 * we need to put in 2 end-of-buffer characters.
1769 */
1770 b->yy_ch_buf = (char *) zconfalloc(b->yy_buf_size + 2 );
1771 if ( ! b->yy_ch_buf )
1772 YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
1774 b->yy_is_our_buffer = 1;
1776 zconf_init_buffer(b,file );
1778 return b;
1781 /** Destroy the buffer.
1782 * @param b a buffer created with zconf_create_buffer()
1784 */
1785 void zconf_delete_buffer (YY_BUFFER_STATE b )
1788 if ( ! b )
1789 return;
1791 if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
1792 YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
1794 if ( b->yy_is_our_buffer )
1795 zconffree((void *) b->yy_ch_buf );
1797 zconffree((void *) b );
1800 /* Initializes or reinitializes a buffer.
1801 * This function is sometimes called more than once on the same buffer,
1802 * such as during a zconfrestart() or at EOF.
1803 */
1804 static void zconf_init_buffer (YY_BUFFER_STATE b, FILE * file )
1807 int oerrno = errno;
1809 zconf_flush_buffer(b );
1811 b->yy_input_file = file;
1812 b->yy_fill_buffer = 1;
1814 /* If b is the current buffer, then zconf_init_buffer was _probably_
1815 * called from zconfrestart() or through yy_get_next_buffer.
1816 * In that case, we don't want to reset the lineno or column.
1817 */
1818 if (b != YY_CURRENT_BUFFER){
1819 b->yy_bs_lineno = 1;
1820 b->yy_bs_column = 0;
1823 b->yy_is_interactive = 0;
1825 errno = oerrno;
1828 /** Discard all buffered characters. On the next scan, YY_INPUT will be called.
1829 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
1831 */
1832 void zconf_flush_buffer (YY_BUFFER_STATE b )
1834 if ( ! b )
1835 return;
1837 b->yy_n_chars = 0;
1839 /* We always need two end-of-buffer characters. The first causes
1840 * a transition to the end-of-buffer state. The second causes
1841 * a jam in that state.
1842 */
1843 b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
1844 b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
1846 b->yy_buf_pos = &b->yy_ch_buf[0];
1848 b->yy_at_bol = 1;
1849 b->yy_buffer_status = YY_BUFFER_NEW;
1851 if ( b == YY_CURRENT_BUFFER )
1852 zconf_load_buffer_state( );
1855 /** Pushes the new state onto the stack. The new state becomes
1856 * the current state. This function will allocate the stack
1857 * if necessary.
1858 * @param new_buffer The new state.
1860 */
1861 void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer )
1863 if (new_buffer == NULL)
1864 return;
1866 zconfensure_buffer_stack();
1868 /* This block is copied from zconf_switch_to_buffer. */
1869 if ( YY_CURRENT_BUFFER )
1871 /* Flush out information for old buffer. */
1872 *(yy_c_buf_p) = (yy_hold_char);
1873 YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
1874 YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
1877 /* Only push if top exists. Otherwise, replace top. */
1878 if (YY_CURRENT_BUFFER)
1879 (yy_buffer_stack_top)++;
1880 YY_CURRENT_BUFFER_LVALUE = new_buffer;
1882 /* copied from zconf_switch_to_buffer. */
1883 zconf_load_buffer_state( );
1884 (yy_did_buffer_switch_on_eof) = 1;
1887 /** Removes and deletes the top of the stack, if present.
1888 * The next element becomes the new top.
1890 */
1891 void zconfpop_buffer_state (void)
1893 if (!YY_CURRENT_BUFFER)
1894 return;
1896 zconf_delete_buffer(YY_CURRENT_BUFFER );
1897 YY_CURRENT_BUFFER_LVALUE = NULL;
1898 if ((yy_buffer_stack_top) > 0)
1899 --(yy_buffer_stack_top);
1901 if (YY_CURRENT_BUFFER) {
1902 zconf_load_buffer_state( );
1903 (yy_did_buffer_switch_on_eof) = 1;
1907 /* Allocates the stack if it does not exist.
1908 * Guarantees space for at least one push.
1909 */
1910 static void zconfensure_buffer_stack (void)
1912 int num_to_alloc;
1914 if (!(yy_buffer_stack)) {
1916 /* First allocation is just for 2 elements, since we don't know if this
1917 * scanner will even need a stack. We use 2 instead of 1 to avoid an
1918 * immediate realloc on the next call.
1919 */
1920 num_to_alloc = 1;
1921 (yy_buffer_stack) = (struct yy_buffer_state**)zconfalloc
1922 (num_to_alloc * sizeof(struct yy_buffer_state*)
1923 );
1925 memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
1927 (yy_buffer_stack_max) = num_to_alloc;
1928 (yy_buffer_stack_top) = 0;
1929 return;
1932 if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
1934 /* Increase the buffer to prepare for a possible push. */
1935 int grow_size = 8 /* arbitrary grow size */;
1937 num_to_alloc = (yy_buffer_stack_max) + grow_size;
1938 (yy_buffer_stack) = (struct yy_buffer_state**)zconfrealloc
1939 ((yy_buffer_stack),
1940 num_to_alloc * sizeof(struct yy_buffer_state*)
1941 );
1943 /* zero only the new slots.*/
1944 memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
1945 (yy_buffer_stack_max) = num_to_alloc;
1949 /** Setup the input buffer state to scan directly from a user-specified character buffer.
1950 * @param base the character buffer
1951 * @param size the size in bytes of the character buffer
1953 * @return the newly allocated buffer state object.
1954 */
1955 YY_BUFFER_STATE zconf_scan_buffer (char * base, yy_size_t size )
1957 YY_BUFFER_STATE b;
1959 if ( size < 2 ||
1960 base[size-2] != YY_END_OF_BUFFER_CHAR ||
1961 base[size-1] != YY_END_OF_BUFFER_CHAR )
1962 /* They forgot to leave room for the EOB's. */
1963 return 0;
1965 b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state ) );
1966 if ( ! b )
1967 YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_buffer()" );
1969 b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
1970 b->yy_buf_pos = b->yy_ch_buf = base;
1971 b->yy_is_our_buffer = 0;
1972 b->yy_input_file = 0;
1973 b->yy_n_chars = b->yy_buf_size;
1974 b->yy_is_interactive = 0;
1975 b->yy_at_bol = 1;
1976 b->yy_fill_buffer = 0;
1977 b->yy_buffer_status = YY_BUFFER_NEW;
1979 zconf_switch_to_buffer(b );
1981 return b;
1984 /** Setup the input buffer state to scan a string. The next call to zconflex() will
1985 * scan from a @e copy of @a str.
1986 * @param yystr a NUL-terminated string to scan
1988 * @return the newly allocated buffer state object.
1989 * @note If you want to scan bytes that may contain NUL values, then use
1990 * zconf_scan_bytes() instead.
1991 */
1992 YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr )
1995 return zconf_scan_bytes(yystr,strlen(yystr) );
1998 /** Setup the input buffer state to scan the given bytes. The next call to zconflex() will
1999 * scan from a @e copy of @a bytes.
2000 * @param bytes the byte buffer to scan
2001 * @param len the number of bytes in the buffer pointed to by @a bytes.
2003 * @return the newly allocated buffer state object.
2004 */
2005 YY_BUFFER_STATE zconf_scan_bytes (yyconst char * yybytes, int _yybytes_len )
2007 YY_BUFFER_STATE b;
2008 char *buf;
2009 yy_size_t n;
2010 int i;
2012 /* Get memory for full buffer, including space for trailing EOB's. */
2013 n = _yybytes_len + 2;
2014 buf = (char *) zconfalloc(n );
2015 if ( ! buf )
2016 YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_bytes()" );
2018 for ( i = 0; i < _yybytes_len; ++i )
2019 buf[i] = yybytes[i];
2021 buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
2023 b = zconf_scan_buffer(buf,n );
2024 if ( ! b )
2025 YY_FATAL_ERROR( "bad buffer in zconf_scan_bytes()" );
2027 /* It's okay to grow etc. this buffer, and we should throw it
2028 * away when we're done.
2029 */
2030 b->yy_is_our_buffer = 1;
2032 return b;
2035 #ifndef YY_EXIT_FAILURE
2036 #define YY_EXIT_FAILURE 2
2037 #endif
2039 static void yy_fatal_error (yyconst char* msg )
2041 (void) fprintf( stderr, "%s\n", msg );
2042 exit( YY_EXIT_FAILURE );
2045 /* Redefine yyless() so it works in section 3 code. */
2047 #undef yyless
2048 #define yyless(n) \
2049 do \
2050 { \
2051 /* Undo effects of setting up zconftext. */ \
2052 int yyless_macro_arg = (n); \
2053 YY_LESS_LINENO(yyless_macro_arg);\
2054 zconftext[zconfleng] = (yy_hold_char); \
2055 (yy_c_buf_p) = zconftext + yyless_macro_arg; \
2056 (yy_hold_char) = *(yy_c_buf_p); \
2057 *(yy_c_buf_p) = '\0'; \
2058 zconfleng = yyless_macro_arg; \
2059 } \
2060 while ( 0 )
2062 /* Accessor methods (get/set functions) to struct members. */
2064 /** Get the current line number.
2066 */
2067 int zconfget_lineno (void)
2070 return zconflineno;
2073 /** Get the input stream.
2075 */
2076 FILE *zconfget_in (void)
2078 return zconfin;
2081 /** Get the output stream.
2083 */
2084 FILE *zconfget_out (void)
2086 return zconfout;
2089 /** Get the length of the current token.
2091 */
2092 int zconfget_leng (void)
2094 return zconfleng;
2097 /** Get the current token.
2099 */
2101 char *zconfget_text (void)
2103 return zconftext;
2106 /** Set the current line number.
2107 * @param line_number
2109 */
2110 void zconfset_lineno (int line_number )
2113 zconflineno = line_number;
2116 /** Set the input stream. This does not discard the current
2117 * input buffer.
2118 * @param in_str A readable stream.
2120 * @see zconf_switch_to_buffer
2121 */
2122 void zconfset_in (FILE * in_str )
2124 zconfin = in_str ;
2127 void zconfset_out (FILE * out_str )
2129 zconfout = out_str ;
2132 int zconfget_debug (void)
2134 return zconf_flex_debug;
2137 void zconfset_debug (int bdebug )
2139 zconf_flex_debug = bdebug ;
2142 static int yy_init_globals (void)
2144 /* Initialization is the same as for the non-reentrant scanner.
2145 * This function is called from zconflex_destroy(), so don't allocate here.
2146 */
2148 (yy_buffer_stack) = 0;
2149 (yy_buffer_stack_top) = 0;
2150 (yy_buffer_stack_max) = 0;
2151 (yy_c_buf_p) = (char *) 0;
2152 (yy_init) = 0;
2153 (yy_start) = 0;
2155 /* Defined in main.c */
2156 #ifdef YY_STDINIT
2157 zconfin = stdin;
2158 zconfout = stdout;
2159 #else
2160 zconfin = (FILE *) 0;
2161 zconfout = (FILE *) 0;
2162 #endif
2164 /* For future reference: Set errno on error, since we are called by
2165 * zconflex_init()
2166 */
2167 return 0;
2170 /* zconflex_destroy is for both reentrant and non-reentrant scanners. */
2171 int zconflex_destroy (void)
2174 /* Pop the buffer stack, destroying each element. */
2175 while(YY_CURRENT_BUFFER){
2176 zconf_delete_buffer(YY_CURRENT_BUFFER );
2177 YY_CURRENT_BUFFER_LVALUE = NULL;
2178 zconfpop_buffer_state();
2181 /* Destroy the stack itself. */
2182 zconffree((yy_buffer_stack) );
2183 (yy_buffer_stack) = NULL;
2185 /* Reset the globals. This is important in a non-reentrant scanner so the next time
2186 * zconflex() is called, initialization will occur. */
2187 yy_init_globals( );
2189 return 0;
2192 /*
2193 * Internal utility routines.
2194 */
2196 #ifndef yytext_ptr
2197 static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
2199 register int i;
2200 for ( i = 0; i < n; ++i )
2201 s1[i] = s2[i];
2203 #endif
2205 #ifdef YY_NEED_STRLEN
2206 static int yy_flex_strlen (yyconst char * s )
2208 register int n;
2209 for ( n = 0; s[n]; ++n )
2212 return n;
2214 #endif
2216 void *zconfalloc (yy_size_t size )
2218 return (void *) malloc( size );
2221 void *zconfrealloc (void * ptr, yy_size_t size )
2223 /* The cast to (char *) in the following accommodates both
2224 * implementations that use char* generic pointers, and those
2225 * that use void* generic pointers. It works with the latter
2226 * because both ANSI C and C++ allow castless assignment from
2227 * any pointer type to void*, and deal with argument conversions
2228 * as though doing an assignment.
2229 */
2230 return (void *) realloc( (char *) ptr, size );
2233 void zconffree (void * ptr )
2235 free( (char *) ptr ); /* see zconfrealloc() for (char *) cast */
2238 #define YYTABLES_NAME "yytables"
2240 void zconf_starthelp(void)
2242 new_string();
2243 last_ts = first_ts = 0;
2244 BEGIN(HELP);
2247 static void zconf_endhelp(void)
2249 zconflval.string = text;
2250 BEGIN(INITIAL);
2253 /*
2254 * Try to open specified file with following names:
2255 * ./name
2256 * $(srctree)/name
2257 * The latter is used when srctree is separate from objtree
2258 * when compiling the kernel.
2259 * Return NULL if file is not found.
2260 */
2261 FILE *zconf_fopen(const char *name)
2263 char *env, fullname[PATH_MAX+1];
2264 FILE *f;
2266 f = fopen(name, "r");
2267 if (!f && name[0] != '/') {
2268 env = getenv(SRCTREE);
2269 if (env) {
2270 sprintf(fullname, "%s/%s", env, name);
2271 f = fopen(fullname, "r");
2274 return f;
2277 void zconf_initscan(const char *name)
2279 zconfin = zconf_fopen(name);
2280 if (!zconfin) {
2281 printf("can't find file %s\n", name);
2282 exit(1);
2285 current_buf = malloc(sizeof(*current_buf));
2286 memset(current_buf, 0, sizeof(*current_buf));
2288 current_file = file_lookup(name);
2289 current_file->lineno = 1;
2290 current_file->flags = FILE_BUSY;
2293 void zconf_nextfile(const char *name)
2295 struct file *file = file_lookup(name);
2296 struct buffer *buf = malloc(sizeof(*buf));
2297 memset(buf, 0, sizeof(*buf));
2299 current_buf->state = YY_CURRENT_BUFFER;
2300 zconfin = zconf_fopen(name);
2301 if (!zconfin) {
2302 printf("%s:%d: can't open file \"%s\"\n", zconf_curname(), zconf_lineno(), name);
2303 exit(1);
2305 zconf_switch_to_buffer(zconf_create_buffer(zconfin,YY_BUF_SIZE));
2306 buf->parent = current_buf;
2307 current_buf = buf;
2309 if (file->flags & FILE_BUSY) {
2310 printf("recursive scan (%s)?\n", name);
2311 exit(1);
2313 if (file->flags & FILE_SCANNED) {
2314 printf("file %s already scanned?\n", name);
2315 exit(1);
2317 file->flags |= FILE_BUSY;
2318 file->lineno = 1;
2319 file->parent = current_file;
2320 current_file = file;
2323 static void zconf_endfile(void)
2325 struct buffer *parent;
2327 current_file->flags |= FILE_SCANNED;
2328 current_file->flags &= ~FILE_BUSY;
2329 current_file = current_file->parent;
2331 parent = current_buf->parent;
2332 if (parent) {
2333 fclose(zconfin);
2334 zconf_delete_buffer(YY_CURRENT_BUFFER);
2335 zconf_switch_to_buffer(parent->state);
2337 free(current_buf);
2338 current_buf = parent;
2341 int zconf_lineno(void)
2343 return current_pos.lineno;
2346 char *zconf_curname(void)
2348 return current_pos.file ? current_pos.file->name : "<none>";