Mercurial > hg > CbC > CbC_gcc
annotate libcpp/internal.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Mon, 24 May 2010 12:47:05 +0900 |
parents | 77e2b8dfacca |
children | f6334be47118 |
rev | line source |
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0 | 1 /* Part of CPP library. |
2 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, | |
3 2008, 2009 Free Software Foundation, Inc. | |
4 | |
5 This program is free software; you can redistribute it and/or modify it | |
6 under the terms of the GNU General Public License as published by the | |
7 Free Software Foundation; either version 3, or (at your option) any | |
8 later version. | |
9 | |
10 This program is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 GNU General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU General Public License | |
16 along with this program; see the file COPYING3. If not see | |
17 <http://www.gnu.org/licenses/>. */ | |
18 | |
19 /* This header defines all the internal data structures and functions | |
20 that need to be visible across files. It should not be used outside | |
21 cpplib. */ | |
22 | |
23 #ifndef LIBCPP_INTERNAL_H | |
24 #define LIBCPP_INTERNAL_H | |
25 | |
26 #include "symtab.h" | |
27 #include "cpp-id-data.h" | |
28 | |
29 #if HAVE_ICONV | |
30 #include <iconv.h> | |
31 #else | |
32 #define HAVE_ICONV 0 | |
33 typedef int iconv_t; /* dummy */ | |
34 #endif | |
35 | |
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36 #ifdef __cplusplus |
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37 extern "C" { |
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38 #endif |
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39 |
0 | 40 struct directive; /* Deliberately incomplete. */ |
41 struct pending_option; | |
42 struct op; | |
43 struct _cpp_strbuf; | |
44 | |
45 typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
46 struct _cpp_strbuf *); | |
47 struct cset_converter | |
48 { | |
49 convert_f func; | |
50 iconv_t cd; | |
51 int width; | |
52 }; | |
53 | |
54 #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) | |
55 | |
56 /* Test if a sign is valid within a preprocessing number. */ | |
57 #define VALID_SIGN(c, prevc) \ | |
58 (((c) == '+' || (c) == '-') && \ | |
59 ((prevc) == 'e' || (prevc) == 'E' \ | |
60 || (((prevc) == 'p' || (prevc) == 'P') \ | |
61 && CPP_OPTION (pfile, extended_numbers)))) | |
62 | |
63 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) | |
64 #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
65 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) | |
66 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) | |
67 | |
68 #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ | |
69 const struct line_maps *line_table = PFILE->line_table; \ | |
70 const struct line_map *map = &line_table->maps[line_table->used-1]; \ | |
71 linenum_type line = SOURCE_LINE (map, line_table->highest_line); \ | |
72 linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ | |
73 } while (0) | |
74 | |
75 /* Maximum nesting of cpp_buffers. We use a static limit, partly for | |
76 efficiency, and partly to limit runaway recursion. */ | |
77 #define CPP_STACK_MAX 200 | |
78 | |
79 /* Host alignment handling. */ | |
80 struct dummy | |
81 { | |
82 char c; | |
83 union | |
84 { | |
85 double d; | |
86 int *p; | |
87 } u; | |
88 }; | |
89 | |
90 #define DEFAULT_ALIGNMENT offsetof (struct dummy, u) | |
91 #define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) | |
92 #define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) | |
93 | |
94 #define _cpp_mark_macro_used(NODE) do { \ | |
95 if ((NODE)->type == NT_MACRO && !((NODE)->flags & NODE_BUILTIN)) \ | |
96 (NODE)->value.macro->used = 1; } while (0) | |
97 | |
98 /* A generic memory buffer, and operations on it. */ | |
99 typedef struct _cpp_buff _cpp_buff; | |
100 struct _cpp_buff | |
101 { | |
102 struct _cpp_buff *next; | |
103 unsigned char *base, *cur, *limit; | |
104 }; | |
105 | |
106 extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); | |
107 extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); | |
108 extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); | |
109 extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); | |
110 extern void _cpp_free_buff (_cpp_buff *); | |
111 extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); | |
112 extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); | |
113 | |
114 #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) | |
115 #define BUFF_FRONT(BUFF) ((BUFF)->cur) | |
116 #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
117 | |
118 /* #include types. */ | |
119 enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE}; | |
120 | |
121 union utoken | |
122 { | |
123 const cpp_token *token; | |
124 const cpp_token **ptoken; | |
125 }; | |
126 | |
127 /* A "run" of tokens; part of a chain of runs. */ | |
128 typedef struct tokenrun tokenrun; | |
129 struct tokenrun | |
130 { | |
131 tokenrun *next, *prev; | |
132 cpp_token *base, *limit; | |
133 }; | |
134 | |
135 /* Accessor macros for struct cpp_context. */ | |
136 #define FIRST(c) ((c)->u.iso.first) | |
137 #define LAST(c) ((c)->u.iso.last) | |
138 #define CUR(c) ((c)->u.trad.cur) | |
139 #define RLIMIT(c) ((c)->u.trad.rlimit) | |
140 | |
141 typedef struct cpp_context cpp_context; | |
142 struct cpp_context | |
143 { | |
144 /* Doubly-linked list. */ | |
145 cpp_context *next, *prev; | |
146 | |
147 union | |
148 { | |
149 /* For ISO macro expansion. Contexts other than the base context | |
150 are contiguous tokens. e.g. macro expansions, expanded | |
151 argument tokens. */ | |
152 struct | |
153 { | |
154 union utoken first; | |
155 union utoken last; | |
156 } iso; | |
157 | |
158 /* For traditional macro expansion. */ | |
159 struct | |
160 { | |
161 const unsigned char *cur; | |
162 const unsigned char *rlimit; | |
163 } trad; | |
164 } u; | |
165 | |
166 /* If non-NULL, a buffer used for storage related to this context. | |
167 When the context is popped, the buffer is released. */ | |
168 _cpp_buff *buff; | |
169 | |
170 /* For a macro context, the macro node, otherwise NULL. */ | |
171 cpp_hashnode *macro; | |
172 | |
173 /* True if utoken element is token, else ptoken. */ | |
174 bool direct_p; | |
175 }; | |
176 | |
177 struct lexer_state | |
178 { | |
179 /* Nonzero if first token on line is CPP_HASH. */ | |
180 unsigned char in_directive; | |
181 | |
182 /* Nonzero if in a directive that will handle padding tokens itself. | |
183 #include needs this to avoid problems with computed include and | |
184 spacing between tokens. */ | |
185 unsigned char directive_wants_padding; | |
186 | |
187 /* True if we are skipping a failed conditional group. */ | |
188 unsigned char skipping; | |
189 | |
190 /* Nonzero if in a directive that takes angle-bracketed headers. */ | |
191 unsigned char angled_headers; | |
192 | |
193 /* Nonzero if in a #if or #elif directive. */ | |
194 unsigned char in_expression; | |
195 | |
196 /* Nonzero to save comments. Turned off if discard_comments, and in | |
197 all directives apart from #define. */ | |
198 unsigned char save_comments; | |
199 | |
200 /* Nonzero if lexing __VA_ARGS__ is valid. */ | |
201 unsigned char va_args_ok; | |
202 | |
203 /* Nonzero if lexing poisoned identifiers is valid. */ | |
204 unsigned char poisoned_ok; | |
205 | |
206 /* Nonzero to prevent macro expansion. */ | |
207 unsigned char prevent_expansion; | |
208 | |
209 /* Nonzero when parsing arguments to a function-like macro. */ | |
210 unsigned char parsing_args; | |
211 | |
212 /* Nonzero if prevent_expansion is true only because output is | |
213 being discarded. */ | |
214 unsigned char discarding_output; | |
215 | |
216 /* Nonzero to skip evaluating part of an expression. */ | |
217 unsigned int skip_eval; | |
218 | |
219 /* Nonzero when handling a deferred pragma. */ | |
220 unsigned char in_deferred_pragma; | |
221 | |
222 /* Nonzero if the deferred pragma being handled allows macro expansion. */ | |
223 unsigned char pragma_allow_expansion; | |
224 }; | |
225 | |
226 /* Special nodes - identifiers with predefined significance. */ | |
227 struct spec_nodes | |
228 { | |
229 cpp_hashnode *n_defined; /* defined operator */ | |
230 cpp_hashnode *n_true; /* C++ keyword true */ | |
231 cpp_hashnode *n_false; /* C++ keyword false */ | |
232 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ | |
233 }; | |
234 | |
235 typedef struct _cpp_line_note _cpp_line_note; | |
236 struct _cpp_line_note | |
237 { | |
238 /* Location in the clean line the note refers to. */ | |
239 const unsigned char *pos; | |
240 | |
241 /* Type of note. The 9 'from' trigraph characters represent those | |
242 trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
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243 intervening space, 0 represents a note that has already been handled, |
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244 and anything else is invalid. */ |
0 | 245 unsigned int type; |
246 }; | |
247 | |
248 /* Represents the contents of a file cpplib has read in. */ | |
249 struct cpp_buffer | |
250 { | |
251 const unsigned char *cur; /* Current location. */ | |
252 const unsigned char *line_base; /* Start of current physical line. */ | |
253 const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
254 | |
255 const unsigned char *buf; /* Entire character buffer. */ | |
256 const unsigned char *rlimit; /* Writable byte at end of file. */ | |
257 | |
258 _cpp_line_note *notes; /* Array of notes. */ | |
259 unsigned int cur_note; /* Next note to process. */ | |
260 unsigned int notes_used; /* Number of notes. */ | |
261 unsigned int notes_cap; /* Size of allocated array. */ | |
262 | |
263 struct cpp_buffer *prev; | |
264 | |
265 /* Pointer into the file table; non-NULL if this is a file buffer. | |
266 Used for include_next and to record control macros. */ | |
267 struct _cpp_file *file; | |
268 | |
269 /* Saved value of __TIMESTAMP__ macro - date and time of last modification | |
270 of the assotiated file. */ | |
271 const unsigned char *timestamp; | |
272 | |
273 /* Value of if_stack at start of this file. | |
274 Used to prohibit unmatched #endif (etc) in an include file. */ | |
275 struct if_stack *if_stack; | |
276 | |
277 /* True if we need to get the next clean line. */ | |
278 bool need_line; | |
279 | |
280 /* True if we have already warned about C++ comments in this file. | |
281 The warning happens only for C89 extended mode with -pedantic on, | |
282 or for -Wtraditional, and only once per file (otherwise it would | |
283 be far too noisy). */ | |
284 unsigned int warned_cplusplus_comments : 1; | |
285 | |
286 /* True if we don't process trigraphs and escaped newlines. True | |
287 for preprocessed input, command line directives, and _Pragma | |
288 buffers. */ | |
289 unsigned int from_stage3 : 1; | |
290 | |
291 /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is | |
292 true, a CPP_EOF token is then returned. Otherwise, the next | |
293 token from the enclosing buffer is returned. */ | |
294 unsigned int return_at_eof : 1; | |
295 | |
296 /* One for a system header, two for a C system header file that therefore | |
297 needs to be extern "C" protected in C++, and zero otherwise. */ | |
298 unsigned char sysp; | |
299 | |
300 /* The directory of the this buffer's file. Its NAME member is not | |
301 allocated, so we don't need to worry about freeing it. */ | |
302 struct cpp_dir dir; | |
303 | |
304 /* Descriptor for converting from the input character set to the | |
305 source character set. */ | |
306 struct cset_converter input_cset_desc; | |
307 }; | |
308 | |
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309 /* The list of saved macros by push_macro pragma. */ |
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310 struct def_pragma_macro { |
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311 /* Chain element to previous saved macro. */ |
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312 struct def_pragma_macro *next; |
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313 /* Name of the macro. */ |
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314 char *name; |
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315 /* The stored macro content. */ |
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316 cpp_macro *value; |
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317 }; |
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318 |
0 | 319 /* A cpp_reader encapsulates the "state" of a pre-processor run. |
320 Applying cpp_get_token repeatedly yields a stream of pre-processor | |
321 tokens. Usually, there is only one cpp_reader object active. */ | |
322 struct cpp_reader | |
323 { | |
324 /* Top of buffer stack. */ | |
325 cpp_buffer *buffer; | |
326 | |
327 /* Overlaid buffer (can be different after processing #include). */ | |
328 cpp_buffer *overlaid_buffer; | |
329 | |
330 /* Lexer state. */ | |
331 struct lexer_state state; | |
332 | |
333 /* Source line tracking. */ | |
334 struct line_maps *line_table; | |
335 | |
336 /* The line of the '#' of the current directive. */ | |
337 source_location directive_line; | |
338 | |
339 /* Memory buffers. */ | |
340 _cpp_buff *a_buff; /* Aligned permanent storage. */ | |
341 _cpp_buff *u_buff; /* Unaligned permanent storage. */ | |
342 _cpp_buff *free_buffs; /* Free buffer chain. */ | |
343 | |
344 /* Context stack. */ | |
345 struct cpp_context base_context; | |
346 struct cpp_context *context; | |
347 | |
348 /* If in_directive, the directive if known. */ | |
349 const struct directive *directive; | |
350 | |
351 /* Token generated while handling a directive, if any. */ | |
352 cpp_token directive_result; | |
353 | |
354 /* When expanding a macro at top-level, this is the location of the | |
355 macro invocation. */ | |
356 source_location invocation_location; | |
357 | |
358 /* True if this call to cpp_get_token should consider setting | |
359 invocation_location. */ | |
360 bool set_invocation_location; | |
361 | |
362 /* Search paths for include files. */ | |
363 struct cpp_dir *quote_include; /* "" */ | |
364 struct cpp_dir *bracket_include; /* <> */ | |
365 struct cpp_dir no_search_path; /* No path. */ | |
366 | |
367 /* Chain of all hashed _cpp_file instances. */ | |
368 struct _cpp_file *all_files; | |
369 | |
370 struct _cpp_file *main_file; | |
371 | |
372 /* File and directory hash table. */ | |
373 struct htab *file_hash; | |
374 struct htab *dir_hash; | |
375 struct file_hash_entry_pool *file_hash_entries; | |
376 | |
377 /* Negative path lookup hash table. */ | |
378 struct htab *nonexistent_file_hash; | |
379 struct obstack nonexistent_file_ob; | |
380 | |
381 /* Nonzero means don't look for #include "foo" the source-file | |
382 directory. */ | |
383 bool quote_ignores_source_dir; | |
384 | |
385 /* Nonzero if any file has contained #pragma once or #import has | |
386 been used. */ | |
387 bool seen_once_only; | |
388 | |
389 /* Multiple include optimization. */ | |
390 const cpp_hashnode *mi_cmacro; | |
391 const cpp_hashnode *mi_ind_cmacro; | |
392 bool mi_valid; | |
393 | |
394 /* Lexing. */ | |
395 cpp_token *cur_token; | |
396 tokenrun base_run, *cur_run; | |
397 unsigned int lookaheads; | |
398 | |
399 /* Nonzero prevents the lexer from re-using the token runs. */ | |
400 unsigned int keep_tokens; | |
401 | |
402 /* Buffer to hold macro definition string. */ | |
403 unsigned char *macro_buffer; | |
404 unsigned int macro_buffer_len; | |
405 | |
406 /* Descriptor for converting from the source character set to the | |
407 execution character set. */ | |
408 struct cset_converter narrow_cset_desc; | |
409 | |
410 /* Descriptor for converting from the source character set to the | |
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411 UTF-8 execution character set. */ |
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412 struct cset_converter utf8_cset_desc; |
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413 |
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414 /* Descriptor for converting from the source character set to the |
0 | 415 UTF-16 execution character set. */ |
416 struct cset_converter char16_cset_desc; | |
417 | |
418 /* Descriptor for converting from the source character set to the | |
419 UTF-32 execution character set. */ | |
420 struct cset_converter char32_cset_desc; | |
421 | |
422 /* Descriptor for converting from the source character set to the | |
423 wide execution character set. */ | |
424 struct cset_converter wide_cset_desc; | |
425 | |
426 /* Date and time text. Calculated together if either is requested. */ | |
427 const unsigned char *date; | |
428 const unsigned char *time; | |
429 | |
430 /* EOF token, and a token forcing paste avoidance. */ | |
431 cpp_token avoid_paste; | |
432 cpp_token eof; | |
433 | |
434 /* Opaque handle to the dependencies of mkdeps.c. */ | |
435 struct deps *deps; | |
436 | |
437 /* Obstack holding all macro hash nodes. This never shrinks. | |
438 See identifiers.c */ | |
439 struct obstack hash_ob; | |
440 | |
441 /* Obstack holding buffer and conditional structures. This is a | |
442 real stack. See directives.c. */ | |
443 struct obstack buffer_ob; | |
444 | |
445 /* Pragma table - dynamic, because a library user can add to the | |
446 list of recognized pragmas. */ | |
447 struct pragma_entry *pragmas; | |
448 | |
449 /* Call backs to cpplib client. */ | |
450 struct cpp_callbacks cb; | |
451 | |
452 /* Identifier hash table. */ | |
453 struct ht *hash_table; | |
454 | |
455 /* Expression parser stack. */ | |
456 struct op *op_stack, *op_limit; | |
457 | |
458 /* User visible options. */ | |
459 struct cpp_options opts; | |
460 | |
461 /* Special nodes - identifiers with predefined significance to the | |
462 preprocessor. */ | |
463 struct spec_nodes spec_nodes; | |
464 | |
465 /* Whether cpplib owns the hashtable. */ | |
466 bool our_hashtable; | |
467 | |
468 /* Traditional preprocessing output buffer (a logical line). */ | |
469 struct | |
470 { | |
471 unsigned char *base; | |
472 unsigned char *limit; | |
473 unsigned char *cur; | |
474 source_location first_line; | |
475 } out; | |
476 | |
477 /* Used for buffer overlays by traditional.c. */ | |
478 const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; | |
479 | |
480 /* A saved list of the defined macros, for dependency checking | |
481 of precompiled headers. */ | |
482 struct cpp_savedstate *savedstate; | |
483 | |
484 /* Next value of __COUNTER__ macro. */ | |
485 unsigned int counter; | |
486 | |
487 /* Table of comments, when state.save_comments is true. */ | |
488 cpp_comment_table comments; | |
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489 |
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490 /* List of saved macros by push_macro. */ |
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491 struct def_pragma_macro *pushed_macros; |
0 | 492 }; |
493 | |
494 /* Character classes. Based on the more primitive macros in safe-ctype.h. | |
495 If the definition of `numchar' looks odd to you, please look up the | |
496 definition of a pp-number in the C standard [section 6.4.8 of C99]. | |
497 | |
498 In the unlikely event that characters other than \r and \n enter | |
499 the set is_vspace, the macro handle_newline() in lex.c must be | |
500 updated. */ | |
501 #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) | |
502 | |
503 #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) | |
504 #define is_numchar(x) ISIDNUM(x) | |
505 #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
506 #define is_numstart(x) ISDIGIT(x) | |
507 #define is_hspace(x) ISBLANK(x) | |
508 #define is_vspace(x) IS_VSPACE(x) | |
509 #define is_nvspace(x) IS_NVSPACE(x) | |
510 #define is_space(x) IS_SPACE_OR_NUL(x) | |
511 | |
512 /* This table is constant if it can be initialized at compile time, | |
513 which is the case if cpp was compiled with GCC >=2.7, or another | |
514 compiler that supports C99. */ | |
515 #if HAVE_DESIGNATED_INITIALIZERS | |
516 extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
517 #else | |
518 extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
519 #endif | |
520 | |
521 /* Macros. */ | |
522 | |
523 static inline int cpp_in_system_header (cpp_reader *); | |
524 static inline int | |
525 cpp_in_system_header (cpp_reader *pfile) | |
526 { | |
527 return pfile->buffer ? pfile->buffer->sysp : 0; | |
528 } | |
529 #define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic) | |
530 #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional) | |
531 | |
532 static inline int cpp_in_primary_file (cpp_reader *); | |
533 static inline int | |
534 cpp_in_primary_file (cpp_reader *pfile) | |
535 { | |
536 return pfile->line_table->depth == 1; | |
537 } | |
538 | |
539 /* In macro.c */ | |
540 extern void _cpp_free_definition (cpp_hashnode *); | |
541 extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
542 extern void _cpp_pop_context (cpp_reader *); | |
543 extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
544 const unsigned char *, size_t); | |
545 extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *); | |
546 extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, | |
547 unsigned int); | |
548 extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, | |
549 cpp_hashnode *); | |
550 extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); | |
551 extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
552 const cpp_token *, unsigned int); | |
553 extern void _cpp_backup_tokens_direct (cpp_reader *, unsigned int); | |
554 | |
555 /* In identifiers.c */ | |
556 extern void _cpp_init_hashtable (cpp_reader *, hash_table *); | |
557 extern void _cpp_destroy_hashtable (cpp_reader *); | |
558 | |
559 /* In files.c */ | |
560 typedef struct _cpp_file _cpp_file; | |
561 extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, | |
562 bool, int); | |
563 extern bool _cpp_find_failed (_cpp_file *); | |
564 extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); | |
565 extern void _cpp_fake_include (cpp_reader *, const char *); | |
566 extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool); | |
567 extern bool _cpp_stack_include (cpp_reader *, const char *, int, | |
568 enum include_type); | |
569 extern int _cpp_compare_file_date (cpp_reader *, const char *, int); | |
570 extern void _cpp_report_missing_guards (cpp_reader *); | |
571 extern void _cpp_init_files (cpp_reader *); | |
572 extern void _cpp_cleanup_files (cpp_reader *); | |
573 extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *); | |
574 extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); | |
575 extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
576 extern struct stat *_cpp_get_file_stat (_cpp_file *); | |
577 | |
578 /* In expr.c */ | |
579 extern bool _cpp_parse_expr (cpp_reader *, bool); | |
580 extern struct op *_cpp_expand_op_stack (cpp_reader *); | |
581 | |
582 /* In lex.c */ | |
583 extern void _cpp_process_line_notes (cpp_reader *, int); | |
584 extern void _cpp_clean_line (cpp_reader *); | |
585 extern bool _cpp_get_fresh_line (cpp_reader *); | |
586 extern bool _cpp_skip_block_comment (cpp_reader *); | |
587 extern cpp_token *_cpp_temp_token (cpp_reader *); | |
588 extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
589 extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
590 extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); | |
591 extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
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592 extern cpp_hashnode *_cpp_lex_identifier (cpp_reader *, const char *); |
0 | 593 |
594 /* In init.c. */ | |
595 extern void _cpp_maybe_push_include_file (cpp_reader *); | |
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596 extern const char *cpp_named_operator2name (enum cpp_ttype type); |
0 | 597 |
598 /* In directives.c */ | |
599 extern int _cpp_test_assertion (cpp_reader *, unsigned int *); | |
600 extern int _cpp_handle_directive (cpp_reader *, int); | |
601 extern void _cpp_define_builtin (cpp_reader *, const char *); | |
602 extern char ** _cpp_save_pragma_names (cpp_reader *); | |
603 extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
604 extern int _cpp_do__Pragma (cpp_reader *); | |
605 extern void _cpp_init_directives (cpp_reader *); | |
606 extern void _cpp_init_internal_pragmas (cpp_reader *); | |
607 extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
608 linenum_type, unsigned int); | |
609 extern void _cpp_pop_buffer (cpp_reader *); | |
610 | |
611 /* In directives.c */ | |
612 struct _cpp_dir_only_callbacks | |
613 { | |
614 /* Called to print a block of lines. */ | |
615 void (*print_lines) (int, const void *, size_t); | |
616 void (*maybe_print_line) (source_location); | |
617 }; | |
618 | |
619 extern void _cpp_preprocess_dir_only (cpp_reader *, | |
620 const struct _cpp_dir_only_callbacks *); | |
621 | |
622 /* In traditional.c. */ | |
623 extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *); | |
624 extern bool _cpp_read_logical_line_trad (cpp_reader *); | |
625 extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, | |
626 size_t); | |
627 extern void _cpp_remove_overlay (cpp_reader *); | |
628 extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); | |
629 extern bool _cpp_expansions_different_trad (const cpp_macro *, | |
630 const cpp_macro *); | |
631 extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, | |
632 unsigned char *); | |
633 extern size_t _cpp_replacement_text_len (const cpp_macro *); | |
634 | |
635 /* In charset.c. */ | |
636 | |
637 /* The normalization state at this point in the sequence. | |
638 It starts initialized to all zeros, and at the end | |
639 'level' is the normalization level of the sequence. */ | |
640 | |
641 struct normalize_state | |
642 { | |
643 /* The previous character. */ | |
644 cppchar_t previous; | |
645 /* The combining class of the previous character. */ | |
646 unsigned char prev_class; | |
647 /* The lowest normalization level so far. */ | |
648 enum cpp_normalize_level level; | |
649 }; | |
650 #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
651 #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
652 | |
653 /* We saw a character that matches ISIDNUM(), update a | |
654 normalize_state appropriately. */ | |
655 #define NORMALIZE_STATE_UPDATE_IDNUM(st) \ | |
656 ((st)->previous = 0, (st)->prev_class = 0) | |
657 | |
658 extern cppchar_t _cpp_valid_ucn (cpp_reader *, const unsigned char **, | |
659 const unsigned char *, int, | |
660 struct normalize_state *state); | |
661 extern void _cpp_destroy_iconv (cpp_reader *); | |
662 extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, | |
663 unsigned char *, size_t, size_t, | |
664 const unsigned char **, off_t *); | |
665 extern const char *_cpp_default_encoding (void); | |
666 extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, | |
667 const unsigned char *id, | |
668 size_t len); | |
669 | |
670 /* Utility routines and macros. */ | |
671 #define DSC(str) (const unsigned char *)str, sizeof str - 1 | |
672 | |
673 /* These are inline functions instead of macros so we can get type | |
674 checking. */ | |
675 static inline int ustrcmp (const unsigned char *, const unsigned char *); | |
676 static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
677 size_t); | |
678 static inline size_t ustrlen (const unsigned char *); | |
679 static inline unsigned char *uxstrdup (const unsigned char *); | |
680 static inline unsigned char *ustrchr (const unsigned char *, int); | |
681 static inline int ufputs (const unsigned char *, FILE *); | |
682 | |
683 /* Use a const char for the second parameter since it is usually a literal. */ | |
684 static inline int ustrcspn (const unsigned char *, const char *); | |
685 | |
686 static inline int | |
687 ustrcmp (const unsigned char *s1, const unsigned char *s2) | |
688 { | |
689 return strcmp ((const char *)s1, (const char *)s2); | |
690 } | |
691 | |
692 static inline int | |
693 ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) | |
694 { | |
695 return strncmp ((const char *)s1, (const char *)s2, n); | |
696 } | |
697 | |
698 static inline int | |
699 ustrcspn (const unsigned char *s1, const char *s2) | |
700 { | |
701 return strcspn ((const char *)s1, s2); | |
702 } | |
703 | |
704 static inline size_t | |
705 ustrlen (const unsigned char *s1) | |
706 { | |
707 return strlen ((const char *)s1); | |
708 } | |
709 | |
710 static inline unsigned char * | |
711 uxstrdup (const unsigned char *s1) | |
712 { | |
713 return (unsigned char *) xstrdup ((const char *)s1); | |
714 } | |
715 | |
716 static inline unsigned char * | |
717 ustrchr (const unsigned char *s1, int c) | |
718 { | |
719 return (unsigned char *) strchr ((const char *)s1, c); | |
720 } | |
721 | |
722 static inline int | |
723 ufputs (const unsigned char *s, FILE *f) | |
724 { | |
725 return fputs ((const char *)s, f); | |
726 } | |
727 | |
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728 #ifdef __cplusplus |
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729 } |
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730 #endif |
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731 |
0 | 732 #endif /* ! LIBCPP_INTERNAL_H */ |