]>
Commit | Line | Data |
---|---|---|
88ae23e7 | 1 | /* Part of CPP library. |
705e2d28 | 2 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 |
5d8ebbd8 | 3 | Free Software Foundation, Inc. |
4283012f JL |
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 2, 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; if not, write to the Free Software | |
200031d1 | 17 | Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
4283012f | 18 | |
88ae23e7 | 19 | /* This header defines all the internal data structures and functions |
4f4e53dd PB |
20 | that need to be visible across files. It should not be used outside |
21 | cpplib. */ | |
88ae23e7 | 22 | |
4f4e53dd PB |
23 | #ifndef LIBCPP_INTERNAL_H |
24 | #define LIBCPP_INTERNAL_H | |
bb52fa7f | 25 | |
4f4e53dd | 26 | #include "symtab.h" |
d8044160 | 27 | #include "cpp-id-data.h" |
2a967f3d | 28 | |
968e08d6 ZW |
29 | #ifndef HAVE_ICONV_H |
30 | #undef HAVE_ICONV | |
31 | #endif | |
32 | ||
33 | #if HAVE_ICONV | |
e6cc3a24 ZW |
34 | #include <iconv.h> |
35 | #else | |
36 | #define HAVE_ICONV 0 | |
37 | typedef int iconv_t; /* dummy */ | |
38 | #endif | |
39 | ||
2a967f3d | 40 | struct directive; /* Deliberately incomplete. */ |
af0d16cd | 41 | struct pending_option; |
87ed109f | 42 | struct op; |
a8016863 | 43 | struct _cpp_strbuf; |
6b88314c ZW |
44 | |
45 | typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
a8016863 | 46 | struct _cpp_strbuf *); |
6b88314c ZW |
47 | struct cset_converter |
48 | { | |
49 | convert_f func; | |
50 | iconv_t cd; | |
51 | }; | |
8121d2c3 | 52 | |
4268e8bb NB |
53 | #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) |
54 | ||
93c80368 NB |
55 | /* Test if a sign is valid within a preprocessing number. */ |
56 | #define VALID_SIGN(c, prevc) \ | |
57 | (((c) == '+' || (c) == '-') && \ | |
58 | ((prevc) == 'e' || (prevc) == 'E' \ | |
bdb05a7b NB |
59 | || (((prevc) == 'p' || (prevc) == 'P') \ |
60 | && CPP_OPTION (pfile, extended_numbers)))) | |
93c80368 | 61 | |
8121d2c3 NB |
62 | #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) |
63 | #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
26aea073 | 64 | #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) |
8121d2c3 NB |
65 | #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) |
66 | ||
12f9df4e | 67 | #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ |
500bee0a PB |
68 | const struct line_maps *line_table = PFILE->line_table; \ |
69 | const struct line_map *map = &line_table->maps[line_table->used-1]; \ | |
70 | unsigned int line = SOURCE_LINE (map, line_table->highest_line); \ | |
71 | linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ | |
12f9df4e PB |
72 | } while (0) |
73 | ||
8121d2c3 NB |
74 | /* Maximum nesting of cpp_buffers. We use a static limit, partly for |
75 | efficiency, and partly to limit runaway recursion. */ | |
76 | #define CPP_STACK_MAX 200 | |
77 | ||
c70f6ed3 NB |
78 | /* Host alignment handling. */ |
79 | struct dummy | |
80 | { | |
81 | char c; | |
82 | union | |
83 | { | |
84 | double d; | |
85 | int *p; | |
86 | } u; | |
87 | }; | |
88 | ||
89 | #define DEFAULT_ALIGNMENT offsetof (struct dummy, u) | |
90 | #define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) | |
91 | #define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) | |
92 | ||
a69cbaac NB |
93 | #define _cpp_mark_macro_used(NODE) do { \ |
94 | if ((NODE)->type == NT_MACRO && !((NODE)->flags & NODE_BUILTIN)) \ | |
95 | (NODE)->value.macro->used = 1; } while (0) | |
96 | ||
644eddaa | 97 | /* A generic memory buffer, and operations on it. */ |
b8af0ca5 NB |
98 | typedef struct _cpp_buff _cpp_buff; |
99 | struct _cpp_buff | |
100 | { | |
101 | struct _cpp_buff *next; | |
ece54d54 | 102 | unsigned char *base, *cur, *limit; |
b8af0ca5 NB |
103 | }; |
104 | ||
6cf87ca4 ZW |
105 | extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); |
106 | extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); | |
107 | extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); | |
108 | extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); | |
109 | extern void _cpp_free_buff (_cpp_buff *); | |
110 | extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); | |
111 | extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); | |
644eddaa | 112 | |
8c3b2693 | 113 | #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) |
ece54d54 NB |
114 | #define BUFF_FRONT(BUFF) ((BUFF)->cur) |
115 | #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
b8af0ca5 | 116 | |
ba133c96 NB |
117 | /* #include types. */ |
118 | enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE}; | |
119 | ||
4ed5bcfb | 120 | union utoken |
8121d2c3 | 121 | { |
4ed5bcfb NB |
122 | const cpp_token *token; |
123 | const cpp_token **ptoken; | |
8121d2c3 NB |
124 | }; |
125 | ||
5d8ebbd8 | 126 | /* A "run" of tokens; part of a chain of runs. */ |
5fddcffc NB |
127 | typedef struct tokenrun tokenrun; |
128 | struct tokenrun | |
129 | { | |
bdcbe496 | 130 | tokenrun *next, *prev; |
5fddcffc NB |
131 | cpp_token *base, *limit; |
132 | }; | |
133 | ||
82eda77e | 134 | /* Accessor macros for struct cpp_context. */ |
79ba5e3b NB |
135 | #define FIRST(c) ((c)->u.iso.first) |
136 | #define LAST(c) ((c)->u.iso.last) | |
137 | #define CUR(c) ((c)->u.trad.cur) | |
138 | #define RLIMIT(c) ((c)->u.trad.rlimit) | |
82eda77e | 139 | |
8121d2c3 NB |
140 | typedef struct cpp_context cpp_context; |
141 | struct cpp_context | |
142 | { | |
143 | /* Doubly-linked list. */ | |
144 | cpp_context *next, *prev; | |
145 | ||
82eda77e NB |
146 | union |
147 | { | |
148 | /* For ISO macro expansion. Contexts other than the base context | |
149 | are contiguous tokens. e.g. macro expansions, expanded | |
150 | argument tokens. */ | |
151 | struct | |
152 | { | |
153 | union utoken first; | |
154 | union utoken last; | |
155 | } iso; | |
156 | ||
157 | /* For traditional macro expansion. */ | |
158 | struct | |
159 | { | |
c812785a RS |
160 | const unsigned char *cur; |
161 | const unsigned char *rlimit; | |
82eda77e NB |
162 | } trad; |
163 | } u; | |
8121d2c3 | 164 | |
1e013d2e | 165 | /* If non-NULL, a buffer used for storage related to this context. |
c9e7a609 | 166 | When the context is popped, the buffer is released. */ |
1e013d2e NB |
167 | _cpp_buff *buff; |
168 | ||
644eddaa NB |
169 | /* For a macro context, the macro node, otherwise NULL. */ |
170 | cpp_hashnode *macro; | |
4ed5bcfb NB |
171 | |
172 | /* True if utoken element is token, else ptoken. */ | |
173 | bool direct_p; | |
8121d2c3 NB |
174 | }; |
175 | ||
176 | struct lexer_state | |
177 | { | |
178 | /* Nonzero if first token on line is CPP_HASH. */ | |
179 | unsigned char in_directive; | |
180 | ||
a8d0ddaf ZW |
181 | /* Nonzero if in a directive that will handle padding tokens itself. |
182 | #include needs this to avoid problems with computed include and | |
183 | spacing between tokens. */ | |
184 | unsigned char directive_wants_padding; | |
185 | ||
cef0d199 NB |
186 | /* True if we are skipping a failed conditional group. */ |
187 | unsigned char skipping; | |
188 | ||
8121d2c3 NB |
189 | /* Nonzero if in a directive that takes angle-bracketed headers. */ |
190 | unsigned char angled_headers; | |
191 | ||
d97371e0 NB |
192 | /* Nonzero if in a #if or #elif directive. */ |
193 | unsigned char in_expression; | |
194 | ||
8121d2c3 NB |
195 | /* Nonzero to save comments. Turned off if discard_comments, and in |
196 | all directives apart from #define. */ | |
197 | unsigned char save_comments; | |
198 | ||
8121d2c3 NB |
199 | /* Nonzero if lexing __VA_ARGS__ is valid. */ |
200 | unsigned char va_args_ok; | |
201 | ||
202 | /* Nonzero if lexing poisoned identifiers is valid. */ | |
203 | unsigned char poisoned_ok; | |
204 | ||
205 | /* Nonzero to prevent macro expansion. */ | |
df383483 | 206 | unsigned char prevent_expansion; |
8121d2c3 NB |
207 | |
208 | /* Nonzero when parsing arguments to a function-like macro. */ | |
209 | unsigned char parsing_args; | |
87ed109f | 210 | |
c6e83800 ZW |
211 | /* Nonzero if prevent_expansion is true only because output is |
212 | being discarded. */ | |
213 | unsigned char discarding_output; | |
214 | ||
87ed109f NB |
215 | /* Nonzero to skip evaluating part of an expression. */ |
216 | unsigned int skip_eval; | |
bc4071dd RH |
217 | |
218 | /* Nonzero when handling a deferred pragma. */ | |
219 | unsigned char in_deferred_pragma; | |
220 | ||
221 | /* Nonzero if the deferred pragma being handled allows macro expansion. */ | |
222 | unsigned char pragma_allow_expansion; | |
8121d2c3 NB |
223 | }; |
224 | ||
225 | /* Special nodes - identifiers with predefined significance. */ | |
226 | struct spec_nodes | |
227 | { | |
8121d2c3 | 228 | cpp_hashnode *n_defined; /* defined operator */ |
037313ae ZW |
229 | cpp_hashnode *n_true; /* C++ keyword true */ |
230 | cpp_hashnode *n_false; /* C++ keyword false */ | |
8121d2c3 NB |
231 | cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ |
232 | }; | |
233 | ||
26aea073 NB |
234 | typedef struct _cpp_line_note _cpp_line_note; |
235 | struct _cpp_line_note | |
236 | { | |
237 | /* Location in the clean line the note refers to. */ | |
c812785a | 238 | const unsigned char *pos; |
26aea073 | 239 | |
41c32c98 NB |
240 | /* Type of note. The 9 'from' trigraph characters represent those |
241 | trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
242 | intervening space, and anything else is invalid. */ | |
243 | unsigned int type; | |
26aea073 NB |
244 | }; |
245 | ||
5d8ebbd8 | 246 | /* Represents the contents of a file cpplib has read in. */ |
27e2564a NB |
247 | struct cpp_buffer |
248 | { | |
c812785a RS |
249 | const unsigned char *cur; /* Current location. */ |
250 | const unsigned char *line_base; /* Start of current physical line. */ | |
251 | const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
cf551fba | 252 | |
c812785a RS |
253 | const unsigned char *buf; /* Entire character buffer. */ |
254 | const unsigned char *rlimit; /* Writable byte at end of file. */ | |
26aea073 | 255 | |
c812785a RS |
256 | _cpp_line_note *notes; /* Array of notes. */ |
257 | unsigned int cur_note; /* Next note to process. */ | |
258 | unsigned int notes_used; /* Number of notes. */ | |
259 | unsigned int notes_cap; /* Size of allocated array. */ | |
27e2564a | 260 | |
27e2564a NB |
261 | struct cpp_buffer *prev; |
262 | ||
8f9b4009 NB |
263 | /* Pointer into the file table; non-NULL if this is a file buffer. |
264 | Used for include_next and to record control macros. */ | |
265 | struct _cpp_file *file; | |
27e2564a | 266 | |
be8ac3e2 GZ |
267 | /* Saved value of __TIMESTAMP__ macro - date and time of last modification |
268 | of the assotiated file. */ | |
269 | const unsigned char *timestamp; | |
270 | ||
27e2564a NB |
271 | /* Value of if_stack at start of this file. |
272 | Used to prohibit unmatched #endif (etc) in an include file. */ | |
273 | struct if_stack *if_stack; | |
274 | ||
26aea073 NB |
275 | /* True if we need to get the next clean line. */ |
276 | bool need_line; | |
27e2564a NB |
277 | |
278 | /* True if we have already warned about C++ comments in this file. | |
279 | The warning happens only for C89 extended mode with -pedantic on, | |
280 | or for -Wtraditional, and only once per file (otherwise it would | |
281 | be far too noisy). */ | |
12f9df4e | 282 | unsigned int warned_cplusplus_comments : 1; |
27e2564a NB |
283 | |
284 | /* True if we don't process trigraphs and escaped newlines. True | |
285 | for preprocessed input, command line directives, and _Pragma | |
286 | buffers. */ | |
12f9df4e | 287 | unsigned int from_stage3 : 1; |
27e2564a | 288 | |
22234f56 PB |
289 | /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is |
290 | true, a CPP_EOF token is then returned. Otherwise, the next | |
291 | token from the enclosing buffer is returned. */ | |
292 | unsigned int return_at_eof : 1; | |
ba133c96 | 293 | |
12f9df4e | 294 | /* One for a system header, two for a C system header file that therefore |
9ac97460 | 295 | needs to be extern "C" protected in C++, and zero otherwise. */ |
12f9df4e PB |
296 | unsigned char sysp; |
297 | ||
591e15a1 NB |
298 | /* The directory of the this buffer's file. Its NAME member is not |
299 | allocated, so we don't need to worry about freeing it. */ | |
8f9b4009 | 300 | struct cpp_dir dir; |
004cb263 | 301 | |
cf551fba EC |
302 | /* Descriptor for converting from the input character set to the |
303 | source character set. */ | |
304 | struct cset_converter input_cset_desc; | |
27e2564a NB |
305 | }; |
306 | ||
8121d2c3 NB |
307 | /* A cpp_reader encapsulates the "state" of a pre-processor run. |
308 | Applying cpp_get_token repeatedly yields a stream of pre-processor | |
309 | tokens. Usually, there is only one cpp_reader object active. */ | |
8121d2c3 NB |
310 | struct cpp_reader |
311 | { | |
312 | /* Top of buffer stack. */ | |
313 | cpp_buffer *buffer; | |
314 | ||
d97371e0 NB |
315 | /* Overlaid buffer (can be different after processing #include). */ |
316 | cpp_buffer *overlaid_buffer; | |
317 | ||
8121d2c3 NB |
318 | /* Lexer state. */ |
319 | struct lexer_state state; | |
320 | ||
67821e3a | 321 | /* Source line tracking. */ |
50f59cd7 | 322 | struct line_maps *line_table; |
1444f2ed | 323 | |
50410426 | 324 | /* The line of the '#' of the current directive. */ |
f58f7def | 325 | source_location directive_line; |
8121d2c3 | 326 | |
b8af0ca5 | 327 | /* Memory buffers. */ |
8c3b2693 | 328 | _cpp_buff *a_buff; /* Aligned permanent storage. */ |
ece54d54 NB |
329 | _cpp_buff *u_buff; /* Unaligned permanent storage. */ |
330 | _cpp_buff *free_buffs; /* Free buffer chain. */ | |
b8af0ca5 | 331 | |
8121d2c3 NB |
332 | /* Context stack. */ |
333 | struct cpp_context base_context; | |
334 | struct cpp_context *context; | |
335 | ||
336 | /* If in_directive, the directive if known. */ | |
337 | const struct directive *directive; | |
338 | ||
21b11495 ZW |
339 | /* Token generated while handling a directive, if any. */ |
340 | cpp_token directive_result; | |
341 | ||
5793b276 | 342 | /* Search paths for include files. */ |
8f9b4009 NB |
343 | struct cpp_dir *quote_include; /* "" */ |
344 | struct cpp_dir *bracket_include; /* <> */ | |
345 | struct cpp_dir no_search_path; /* No path. */ | |
346 | ||
49634b3a NB |
347 | /* Chain of all hashed _cpp_file instances. */ |
348 | struct _cpp_file *all_files; | |
8f9b4009 | 349 | |
4dc299fb PB |
350 | struct _cpp_file *main_file; |
351 | ||
8f9b4009 | 352 | /* File and directory hash table. */ |
bf42e45b | 353 | struct htab *file_hash; |
a23ee064 | 354 | struct htab *dir_hash; |
8f9b4009 NB |
355 | struct file_hash_entry *file_hash_entries; |
356 | unsigned int file_hash_entries_allocated, file_hash_entries_used; | |
357 | ||
358 | /* Nonzero means don't look for #include "foo" the source-file | |
359 | directory. */ | |
360 | bool quote_ignores_source_dir; | |
361 | ||
83a00410 | 362 | /* Nonzero if any file has contained #pragma once or #import has |
49634b3a NB |
363 | been used. */ |
364 | bool seen_once_only; | |
5793b276 | 365 | |
6356f892 | 366 | /* Multiple include optimization. */ |
8121d2c3 NB |
367 | const cpp_hashnode *mi_cmacro; |
368 | const cpp_hashnode *mi_ind_cmacro; | |
6d18adbc | 369 | bool mi_valid; |
8121d2c3 | 370 | |
5fddcffc NB |
371 | /* Lexing. */ |
372 | cpp_token *cur_token; | |
373 | tokenrun base_run, *cur_run; | |
bdcbe496 | 374 | unsigned int lookaheads; |
5fddcffc | 375 | |
da7d8304 | 376 | /* Nonzero prevents the lexer from re-using the token runs. */ |
5fddcffc NB |
377 | unsigned int keep_tokens; |
378 | ||
8121d2c3 NB |
379 | /* Error counter for exit code. */ |
380 | unsigned int errors; | |
381 | ||
8121d2c3 NB |
382 | /* Buffer to hold macro definition string. */ |
383 | unsigned char *macro_buffer; | |
384 | unsigned int macro_buffer_len; | |
385 | ||
6b88314c ZW |
386 | /* Descriptor for converting from the source character set to the |
387 | execution character set. */ | |
388 | struct cset_converter narrow_cset_desc; | |
e6cc3a24 | 389 | |
6b88314c ZW |
390 | /* Descriptor for converting from the source character set to the |
391 | wide execution character set. */ | |
392 | struct cset_converter wide_cset_desc; | |
e6cc3a24 | 393 | |
278c4662 | 394 | /* Date and time text. Calculated together if either is requested. */ |
c812785a RS |
395 | const unsigned char *date; |
396 | const unsigned char *time; | |
8121d2c3 | 397 | |
4ed5bcfb NB |
398 | /* EOF token, and a token forcing paste avoidance. */ |
399 | cpp_token avoid_paste; | |
400 | cpp_token eof; | |
401 | ||
f4ff5a69 | 402 | /* Opaque handle to the dependencies of mkdeps.c. */ |
8121d2c3 NB |
403 | struct deps *deps; |
404 | ||
405 | /* Obstack holding all macro hash nodes. This never shrinks. | |
a2566ae9 | 406 | See identifiers.c */ |
2a967f3d | 407 | struct obstack hash_ob; |
8121d2c3 NB |
408 | |
409 | /* Obstack holding buffer and conditional structures. This is a | |
a2566ae9 | 410 | real stack. See directives.c. */ |
2a967f3d | 411 | struct obstack buffer_ob; |
8121d2c3 NB |
412 | |
413 | /* Pragma table - dynamic, because a library user can add to the | |
414 | list of recognized pragmas. */ | |
415 | struct pragma_entry *pragmas; | |
416 | ||
48c4721e | 417 | /* Call backs to cpplib client. */ |
8121d2c3 NB |
418 | struct cpp_callbacks cb; |
419 | ||
df383483 | 420 | /* Identifier hash table. */ |
2a967f3d NB |
421 | struct ht *hash_table; |
422 | ||
87ed109f NB |
423 | /* Expression parser stack. */ |
424 | struct op *op_stack, *op_limit; | |
425 | ||
8121d2c3 NB |
426 | /* User visible options. */ |
427 | struct cpp_options opts; | |
428 | ||
429 | /* Special nodes - identifiers with predefined significance to the | |
430 | preprocessor. */ | |
431 | struct spec_nodes spec_nodes; | |
432 | ||
2a967f3d | 433 | /* Whether cpplib owns the hashtable. */ |
8f9b4009 | 434 | bool our_hashtable; |
004cb263 | 435 | |
1a76916c NB |
436 | /* Traditional preprocessing output buffer (a logical line). */ |
437 | struct | |
438 | { | |
c812785a RS |
439 | unsigned char *base; |
440 | unsigned char *limit; | |
441 | unsigned char *cur; | |
f58f7def | 442 | source_location first_line; |
1a76916c NB |
443 | } out; |
444 | ||
a2566ae9 | 445 | /* Used for buffer overlays by traditional.c. */ |
c812785a | 446 | const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; |
12f9df4e | 447 | |
17211ab5 GK |
448 | /* A saved list of the defined macros, for dependency checking |
449 | of precompiled headers. */ | |
450 | struct cpp_savedstate *savedstate; | |
8121d2c3 NB |
451 | }; |
452 | ||
f6bbde28 | 453 | /* Character classes. Based on the more primitive macros in safe-ctype.h. |
88ae23e7 | 454 | If the definition of `numchar' looks odd to you, please look up the |
91fcd158 NB |
455 | definition of a pp-number in the C standard [section 6.4.8 of C99]. |
456 | ||
457 | In the unlikely event that characters other than \r and \n enter | |
a2566ae9 | 458 | the set is_vspace, the macro handle_newline() in lex.c must be |
91fcd158 | 459 | updated. */ |
ae79697b | 460 | #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) |
88ae23e7 | 461 | |
f6bbde28 ZW |
462 | #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) |
463 | #define is_numchar(x) ISIDNUM(x) | |
464 | #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
465 | #define is_numstart(x) ISDIGIT(x) | |
466 | #define is_hspace(x) ISBLANK(x) | |
467 | #define is_vspace(x) IS_VSPACE(x) | |
468 | #define is_nvspace(x) IS_NVSPACE(x) | |
469 | #define is_space(x) IS_SPACE_OR_NUL(x) | |
88ae23e7 | 470 | |
f6bbde28 | 471 | /* This table is constant if it can be initialized at compile time, |
88ae23e7 ZW |
472 | which is the case if cpp was compiled with GCC >=2.7, or another |
473 | compiler that supports C99. */ | |
61d0346d | 474 | #if HAVE_DESIGNATED_INITIALIZERS |
61d0346d | 475 | extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
88ae23e7 | 476 | #else |
61d0346d | 477 | extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
88ae23e7 ZW |
478 | #endif |
479 | ||
480 | /* Macros. */ | |
481 | ||
12f9df4e PB |
482 | static inline int cpp_in_system_header (cpp_reader *); |
483 | static inline int | |
484 | cpp_in_system_header (cpp_reader *pfile) | |
485 | { | |
486 | return pfile->buffer ? pfile->buffer->sysp : 0; | |
487 | } | |
28e0f040 NB |
488 | #define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic) |
489 | #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional) | |
88ae23e7 | 490 | |
705e2d28 TT |
491 | static inline int cpp_in_primary_file (cpp_reader *); |
492 | static inline int | |
493 | cpp_in_primary_file (cpp_reader *pfile) | |
494 | { | |
495 | return pfile->line_table->depth == 1; | |
496 | } | |
497 | ||
a2566ae9 | 498 | /* In errors.c */ |
12f9df4e PB |
499 | extern int _cpp_begin_message (cpp_reader *, int, |
500 | source_location, unsigned int); | |
58fea6af | 501 | |
a2566ae9 | 502 | /* In macro.c */ |
6cf87ca4 ZW |
503 | extern void _cpp_free_definition (cpp_hashnode *); |
504 | extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
505 | extern void _cpp_pop_context (cpp_reader *); | |
506 | extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
c812785a | 507 | const unsigned char *, size_t); |
6cf87ca4 ZW |
508 | extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *); |
509 | extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, | |
510 | unsigned int); | |
c812785a RS |
511 | extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, |
512 | cpp_hashnode *); | |
bc4071dd RH |
513 | extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); |
514 | extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
515 | const cpp_token *, unsigned int); | |
516 | ||
a2566ae9 | 517 | /* In identifiers.c */ |
6cf87ca4 ZW |
518 | extern void _cpp_init_hashtable (cpp_reader *, hash_table *); |
519 | extern void _cpp_destroy_hashtable (cpp_reader *); | |
bb52fa7f | 520 | |
a2566ae9 | 521 | /* In files.c */ |
4dc299fb | 522 | typedef struct _cpp_file _cpp_file; |
6568f34b JW |
523 | extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, |
524 | bool, int); | |
4dc299fb | 525 | extern bool _cpp_find_failed (_cpp_file *); |
49634b3a | 526 | extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); |
6cf87ca4 | 527 | extern void _cpp_fake_include (cpp_reader *, const char *); |
4dc299fb | 528 | extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool); |
8f9b4009 NB |
529 | extern bool _cpp_stack_include (cpp_reader *, const char *, int, |
530 | enum include_type); | |
6cf87ca4 ZW |
531 | extern int _cpp_compare_file_date (cpp_reader *, const char *, int); |
532 | extern void _cpp_report_missing_guards (cpp_reader *); | |
8f9b4009 NB |
533 | extern void _cpp_init_files (cpp_reader *); |
534 | extern void _cpp_cleanup_files (cpp_reader *); | |
535 | extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *); | |
73e61092 GK |
536 | extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); |
537 | extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
be8ac3e2 | 538 | extern struct stat *_cpp_get_file_stat (_cpp_file *); |
88ae23e7 | 539 | |
a2566ae9 | 540 | /* In expr.c */ |
6cf87ca4 ZW |
541 | extern bool _cpp_parse_expr (cpp_reader *); |
542 | extern struct op *_cpp_expand_op_stack (cpp_reader *); | |
88ae23e7 | 543 | |
a2566ae9 | 544 | /* In lex.c */ |
6cf87ca4 ZW |
545 | extern void _cpp_process_line_notes (cpp_reader *, int); |
546 | extern void _cpp_clean_line (cpp_reader *); | |
547 | extern bool _cpp_get_fresh_line (cpp_reader *); | |
548 | extern bool _cpp_skip_block_comment (cpp_reader *); | |
549 | extern cpp_token *_cpp_temp_token (cpp_reader *); | |
550 | extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
551 | extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
552 | extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); | |
553 | extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
45b966db | 554 | |
a2566ae9 | 555 | /* In init.c. */ |
6cf87ca4 | 556 | extern void _cpp_maybe_push_include_file (cpp_reader *); |
d7bc7a98 | 557 | |
a2566ae9 | 558 | /* In directives.c */ |
6cf87ca4 ZW |
559 | extern int _cpp_test_assertion (cpp_reader *, unsigned int *); |
560 | extern int _cpp_handle_directive (cpp_reader *, int); | |
561 | extern void _cpp_define_builtin (cpp_reader *, const char *); | |
562 | extern char ** _cpp_save_pragma_names (cpp_reader *); | |
563 | extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
564 | extern void _cpp_do__Pragma (cpp_reader *); | |
565 | extern void _cpp_init_directives (cpp_reader *); | |
566 | extern void _cpp_init_internal_pragmas (cpp_reader *); | |
567 | extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
568 | unsigned int, unsigned int); | |
569 | extern void _cpp_pop_buffer (cpp_reader *); | |
12cf91fe | 570 | |
a2566ae9 | 571 | /* In traditional.c. */ |
43839642 | 572 | extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *); |
6cf87ca4 | 573 | extern bool _cpp_read_logical_line_trad (cpp_reader *); |
c812785a RS |
574 | extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, |
575 | size_t); | |
6cf87ca4 ZW |
576 | extern void _cpp_remove_overlay (cpp_reader *); |
577 | extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); | |
578 | extern bool _cpp_expansions_different_trad (const cpp_macro *, | |
579 | const cpp_macro *); | |
c812785a RS |
580 | extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, |
581 | unsigned char *); | |
6cf87ca4 | 582 | extern size_t _cpp_replacement_text_len (const cpp_macro *); |
004cb263 | 583 | |
a2566ae9 | 584 | /* In charset.c. */ |
50668cf6 GK |
585 | |
586 | /* The normalization state at this point in the sequence. | |
587 | It starts initialized to all zeros, and at the end | |
588 | 'level' is the normalization level of the sequence. */ | |
589 | ||
590 | struct normalize_state | |
591 | { | |
592 | /* The previous character. */ | |
593 | cppchar_t previous; | |
594 | /* The combining class of the previous character. */ | |
595 | unsigned char prev_class; | |
596 | /* The lowest normalization level so far. */ | |
597 | enum cpp_normalize_level level; | |
598 | }; | |
599 | #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
600 | #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
601 | ||
602 | /* We saw a character that matches ISIDNUM(), update a | |
603 | normalize_state appropriately. */ | |
604 | #define NORMALIZE_STATE_UPDATE_IDNUM(st) \ | |
605 | ((st)->previous = 0, (st)->prev_class = 0) | |
606 | ||
c812785a | 607 | extern cppchar_t _cpp_valid_ucn (cpp_reader *, const unsigned char **, |
50668cf6 GK |
608 | const unsigned char *, int, |
609 | struct normalize_state *state); | |
6b88314c | 610 | extern void _cpp_destroy_iconv (cpp_reader *); |
c812785a RS |
611 | extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, |
612 | unsigned char *, size_t, size_t, | |
613 | off_t *); | |
16dd5cfe | 614 | extern const char *_cpp_default_encoding (void); |
47e20491 GK |
615 | extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, |
616 | const unsigned char *id, | |
617 | size_t len); | |
1613e52b | 618 | |
c31a6508 | 619 | /* Utility routines and macros. */ |
c812785a | 620 | #define DSC(str) (const unsigned char *)str, sizeof str - 1 |
c31a6508 | 621 | |
8121d2c3 NB |
622 | /* These are inline functions instead of macros so we can get type |
623 | checking. */ | |
c812785a RS |
624 | static inline int ustrcmp (const unsigned char *, const unsigned char *); |
625 | static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
626 | size_t); | |
627 | static inline size_t ustrlen (const unsigned char *); | |
628 | static inline unsigned char *uxstrdup (const unsigned char *); | |
629 | static inline unsigned char *ustrchr (const unsigned char *, int); | |
630 | static inline int ufputs (const unsigned char *, FILE *); | |
8121d2c3 | 631 | |
be0f1e54 PB |
632 | /* Use a const char for the second parameter since it is usually a literal. */ |
633 | static inline int ustrcspn (const unsigned char *, const char *); | |
634 | ||
8121d2c3 | 635 | static inline int |
c812785a | 636 | ustrcmp (const unsigned char *s1, const unsigned char *s2) |
8121d2c3 NB |
637 | { |
638 | return strcmp ((const char *)s1, (const char *)s2); | |
639 | } | |
640 | ||
641 | static inline int | |
c812785a | 642 | ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) |
8121d2c3 NB |
643 | { |
644 | return strncmp ((const char *)s1, (const char *)s2, n); | |
645 | } | |
646 | ||
be0f1e54 PB |
647 | static inline int |
648 | ustrcspn (const unsigned char *s1, const char *s2) | |
649 | { | |
650 | return strcspn ((const char *)s1, s2); | |
651 | } | |
652 | ||
8121d2c3 | 653 | static inline size_t |
c812785a | 654 | ustrlen (const unsigned char *s1) |
8121d2c3 NB |
655 | { |
656 | return strlen ((const char *)s1); | |
657 | } | |
658 | ||
c812785a RS |
659 | static inline unsigned char * |
660 | uxstrdup (const unsigned char *s1) | |
8121d2c3 | 661 | { |
c812785a | 662 | return (unsigned char *) xstrdup ((const char *)s1); |
8121d2c3 NB |
663 | } |
664 | ||
c812785a RS |
665 | static inline unsigned char * |
666 | ustrchr (const unsigned char *s1, int c) | |
8121d2c3 | 667 | { |
c812785a | 668 | return (unsigned char *) strchr ((const char *)s1, c); |
8121d2c3 NB |
669 | } |
670 | ||
671 | static inline int | |
c812785a | 672 | ufputs (const unsigned char *s, FILE *f) |
8121d2c3 NB |
673 | { |
674 | return fputs ((const char *)s, f); | |
675 | } | |
676 | ||
4f4e53dd | 677 | #endif /* ! LIBCPP_INTERNAL_H */ |