]>
Commit | Line | Data |
---|---|---|
1e8b9746 | 1 | /* Part of CPP library. |
d656d07a | 2 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008 |
e484a1cc | 3 | Free Software Foundation, Inc. |
a8cffe11 | 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 | |
2656917a | 17 | Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
a8cffe11 | 18 | |
1e8b9746 | 19 | /* This header defines all the internal data structures and functions |
d856c8a6 | 20 | that need to be visible across files. It should not be used outside |
21 | cpplib. */ | |
1e8b9746 | 22 | |
d856c8a6 | 23 | #ifndef LIBCPP_INTERNAL_H |
24 | #define LIBCPP_INTERNAL_H | |
73a17672 | 25 | |
d856c8a6 | 26 | #include "symtab.h" |
c39ed964 | 27 | #include "cpp-id-data.h" |
0d086e18 | 28 | |
39b83bdb | 29 | #ifndef HAVE_ICONV_H |
30 | #undef HAVE_ICONV | |
31 | #endif | |
32 | ||
33 | #if HAVE_ICONV | |
ebc03810 | 34 | #include <iconv.h> |
35 | #else | |
36 | #define HAVE_ICONV 0 | |
37 | typedef int iconv_t; /* dummy */ | |
38 | #endif | |
39 | ||
0d086e18 | 40 | struct directive; /* Deliberately incomplete. */ |
02516fb9 | 41 | struct pending_option; |
5bbf045f | 42 | struct op; |
f579c40a | 43 | struct _cpp_strbuf; |
9a432f9a | 44 | |
45 | typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
f579c40a | 46 | struct _cpp_strbuf *); |
9a432f9a | 47 | struct cset_converter |
48 | { | |
49 | convert_f func; | |
50 | iconv_t cd; | |
924bbf02 | 51 | int width; |
9a432f9a | 52 | }; |
28898f20 | 53 | |
13c457e1 | 54 | #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) |
55 | ||
79bd622b | 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' \ | |
5db5d057 | 60 | || (((prevc) == 'p' || (prevc) == 'P') \ |
61 | && CPP_OPTION (pfile, extended_numbers)))) | |
79bd622b | 62 | |
28898f20 | 63 | #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) |
64 | #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
a54e0bf8 | 65 | #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) |
28898f20 | 66 | #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) |
67 | ||
610625e3 | 68 | #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ |
dbddc569 | 69 | const struct line_maps *line_table = PFILE->line_table; \ |
70 | const struct line_map *map = &line_table->maps[line_table->used-1]; \ | |
4999c35b | 71 | linenum_type line = SOURCE_LINE (map, line_table->highest_line); \ |
dbddc569 | 72 | linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ |
610625e3 | 73 | } while (0) |
74 | ||
28898f20 | 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 | ||
198b48a0 | 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 | ||
71a7c282 | 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 | ||
c7e5d924 | 98 | /* A generic memory buffer, and operations on it. */ |
06c92cbc | 99 | typedef struct _cpp_buff _cpp_buff; |
100 | struct _cpp_buff | |
101 | { | |
102 | struct _cpp_buff *next; | |
1fdf6039 | 103 | unsigned char *base, *cur, *limit; |
06c92cbc | 104 | }; |
105 | ||
f7fdd7a1 | 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); | |
c7e5d924 | 113 | |
e6a5f963 | 114 | #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) |
1fdf6039 | 115 | #define BUFF_FRONT(BUFF) ((BUFF)->cur) |
116 | #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
06c92cbc | 117 | |
0d6d8dc0 | 118 | /* #include types. */ |
119 | enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE}; | |
120 | ||
f9b5f742 | 121 | union utoken |
28898f20 | 122 | { |
f9b5f742 | 123 | const cpp_token *token; |
124 | const cpp_token **ptoken; | |
28898f20 | 125 | }; |
126 | ||
e484a1cc | 127 | /* A "run" of tokens; part of a chain of runs. */ |
83dcbb5c | 128 | typedef struct tokenrun tokenrun; |
129 | struct tokenrun | |
130 | { | |
fb5ab82c | 131 | tokenrun *next, *prev; |
83dcbb5c | 132 | cpp_token *base, *limit; |
133 | }; | |
134 | ||
a854276a | 135 | /* Accessor macros for struct cpp_context. */ |
878d9b47 | 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) | |
a854276a | 140 | |
28898f20 | 141 | typedef struct cpp_context cpp_context; |
142 | struct cpp_context | |
143 | { | |
144 | /* Doubly-linked list. */ | |
145 | cpp_context *next, *prev; | |
146 | ||
a854276a | 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 | { | |
fe4dcd90 | 161 | const unsigned char *cur; |
162 | const unsigned char *rlimit; | |
a854276a | 163 | } trad; |
164 | } u; | |
28898f20 | 165 | |
084163dc | 166 | /* If non-NULL, a buffer used for storage related to this context. |
1785b647 | 167 | When the context is popped, the buffer is released. */ |
084163dc | 168 | _cpp_buff *buff; |
169 | ||
c7e5d924 | 170 | /* For a macro context, the macro node, otherwise NULL. */ |
171 | cpp_hashnode *macro; | |
f9b5f742 | 172 | |
173 | /* True if utoken element is token, else ptoken. */ | |
174 | bool direct_p; | |
28898f20 | 175 | }; |
176 | ||
177 | struct lexer_state | |
178 | { | |
179 | /* Nonzero if first token on line is CPP_HASH. */ | |
180 | unsigned char in_directive; | |
181 | ||
7825551f | 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 | ||
5e878517 | 187 | /* True if we are skipping a failed conditional group. */ |
188 | unsigned char skipping; | |
189 | ||
28898f20 | 190 | /* Nonzero if in a directive that takes angle-bracketed headers. */ |
191 | unsigned char angled_headers; | |
192 | ||
bab5e68f | 193 | /* Nonzero if in a #if or #elif directive. */ |
194 | unsigned char in_expression; | |
195 | ||
28898f20 | 196 | /* Nonzero to save comments. Turned off if discard_comments, and in |
197 | all directives apart from #define. */ | |
198 | unsigned char save_comments; | |
199 | ||
28898f20 | 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. */ | |
b1a9ff83 | 207 | unsigned char prevent_expansion; |
28898f20 | 208 | |
209 | /* Nonzero when parsing arguments to a function-like macro. */ | |
210 | unsigned char parsing_args; | |
5bbf045f | 211 | |
3eb3f293 | 212 | /* Nonzero if prevent_expansion is true only because output is |
213 | being discarded. */ | |
214 | unsigned char discarding_output; | |
215 | ||
5bbf045f | 216 | /* Nonzero to skip evaluating part of an expression. */ |
217 | unsigned int skip_eval; | |
b75b98aa | 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; | |
28898f20 | 224 | }; |
225 | ||
226 | /* Special nodes - identifiers with predefined significance. */ | |
227 | struct spec_nodes | |
228 | { | |
28898f20 | 229 | cpp_hashnode *n_defined; /* defined operator */ |
528671b3 | 230 | cpp_hashnode *n_true; /* C++ keyword true */ |
231 | cpp_hashnode *n_false; /* C++ keyword false */ | |
28898f20 | 232 | cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ |
233 | }; | |
234 | ||
a54e0bf8 | 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. */ | |
fe4dcd90 | 239 | const unsigned char *pos; |
a54e0bf8 | 240 | |
aad4a87f | 241 | /* Type of note. The 9 'from' trigraph characters represent those |
242 | trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
243 | intervening space, and anything else is invalid. */ | |
244 | unsigned int type; | |
a54e0bf8 | 245 | }; |
246 | ||
e484a1cc | 247 | /* Represents the contents of a file cpplib has read in. */ |
d7503801 | 248 | struct cpp_buffer |
249 | { | |
fe4dcd90 | 250 | const unsigned char *cur; /* Current location. */ |
251 | const unsigned char *line_base; /* Start of current physical line. */ | |
252 | const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
787c3d1a | 253 | |
fe4dcd90 | 254 | const unsigned char *buf; /* Entire character buffer. */ |
255 | const unsigned char *rlimit; /* Writable byte at end of file. */ | |
a54e0bf8 | 256 | |
fe4dcd90 | 257 | _cpp_line_note *notes; /* Array of notes. */ |
258 | unsigned int cur_note; /* Next note to process. */ | |
259 | unsigned int notes_used; /* Number of notes. */ | |
260 | unsigned int notes_cap; /* Size of allocated array. */ | |
d7503801 | 261 | |
d7503801 | 262 | struct cpp_buffer *prev; |
263 | ||
1824e2bd | 264 | /* Pointer into the file table; non-NULL if this is a file buffer. |
265 | Used for include_next and to record control macros. */ | |
266 | struct _cpp_file *file; | |
d7503801 | 267 | |
cca5dddc | 268 | /* Saved value of __TIMESTAMP__ macro - date and time of last modification |
269 | of the assotiated file. */ | |
270 | const unsigned char *timestamp; | |
271 | ||
d7503801 | 272 | /* Value of if_stack at start of this file. |
273 | Used to prohibit unmatched #endif (etc) in an include file. */ | |
274 | struct if_stack *if_stack; | |
275 | ||
a54e0bf8 | 276 | /* True if we need to get the next clean line. */ |
277 | bool need_line; | |
d7503801 | 278 | |
279 | /* True if we have already warned about C++ comments in this file. | |
280 | The warning happens only for C89 extended mode with -pedantic on, | |
281 | or for -Wtraditional, and only once per file (otherwise it would | |
282 | be far too noisy). */ | |
610625e3 | 283 | unsigned int warned_cplusplus_comments : 1; |
d7503801 | 284 | |
285 | /* True if we don't process trigraphs and escaped newlines. True | |
286 | for preprocessed input, command line directives, and _Pragma | |
287 | buffers. */ | |
610625e3 | 288 | unsigned int from_stage3 : 1; |
d7503801 | 289 | |
6e04daf1 | 290 | /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is |
291 | true, a CPP_EOF token is then returned. Otherwise, the next | |
292 | token from the enclosing buffer is returned. */ | |
293 | unsigned int return_at_eof : 1; | |
0d6d8dc0 | 294 | |
610625e3 | 295 | /* One for a system header, two for a C system header file that therefore |
7c2df241 | 296 | needs to be extern "C" protected in C++, and zero otherwise. */ |
610625e3 | 297 | unsigned char sysp; |
298 | ||
3ec84a0b | 299 | /* The directory of the this buffer's file. Its NAME member is not |
300 | allocated, so we don't need to worry about freeing it. */ | |
1824e2bd | 301 | struct cpp_dir dir; |
0bb65704 | 302 | |
787c3d1a | 303 | /* Descriptor for converting from the input character set to the |
304 | source character set. */ | |
305 | struct cset_converter input_cset_desc; | |
d7503801 | 306 | }; |
307 | ||
28898f20 | 308 | /* A cpp_reader encapsulates the "state" of a pre-processor run. |
309 | Applying cpp_get_token repeatedly yields a stream of pre-processor | |
310 | tokens. Usually, there is only one cpp_reader object active. */ | |
28898f20 | 311 | struct cpp_reader |
312 | { | |
313 | /* Top of buffer stack. */ | |
314 | cpp_buffer *buffer; | |
315 | ||
bab5e68f | 316 | /* Overlaid buffer (can be different after processing #include). */ |
317 | cpp_buffer *overlaid_buffer; | |
318 | ||
28898f20 | 319 | /* Lexer state. */ |
320 | struct lexer_state state; | |
321 | ||
1ea7ed21 | 322 | /* Source line tracking. */ |
ceec9c13 | 323 | struct line_maps *line_table; |
36a0aa7c | 324 | |
729d2022 | 325 | /* The line of the '#' of the current directive. */ |
ed000086 | 326 | source_location directive_line; |
28898f20 | 327 | |
06c92cbc | 328 | /* Memory buffers. */ |
e6a5f963 | 329 | _cpp_buff *a_buff; /* Aligned permanent storage. */ |
1fdf6039 | 330 | _cpp_buff *u_buff; /* Unaligned permanent storage. */ |
331 | _cpp_buff *free_buffs; /* Free buffer chain. */ | |
06c92cbc | 332 | |
28898f20 | 333 | /* Context stack. */ |
334 | struct cpp_context base_context; | |
335 | struct cpp_context *context; | |
336 | ||
337 | /* If in_directive, the directive if known. */ | |
338 | const struct directive *directive; | |
339 | ||
d6d3c909 | 340 | /* Token generated while handling a directive, if any. */ |
341 | cpp_token directive_result; | |
342 | ||
931b0a0f | 343 | /* When expanding a macro at top-level, this is the location of the |
344 | macro invocation. */ | |
345 | source_location invocation_location; | |
346 | ||
347 | /* True if this call to cpp_get_token should consider setting | |
348 | invocation_location. */ | |
349 | bool set_invocation_location; | |
350 | ||
e69f4d0e | 351 | /* Search paths for include files. */ |
1824e2bd | 352 | struct cpp_dir *quote_include; /* "" */ |
353 | struct cpp_dir *bracket_include; /* <> */ | |
354 | struct cpp_dir no_search_path; /* No path. */ | |
355 | ||
68faebf4 | 356 | /* Chain of all hashed _cpp_file instances. */ |
357 | struct _cpp_file *all_files; | |
1824e2bd | 358 | |
64386834 | 359 | struct _cpp_file *main_file; |
360 | ||
1824e2bd | 361 | /* File and directory hash table. */ |
aab5b9fa | 362 | struct htab *file_hash; |
821fa045 | 363 | struct htab *dir_hash; |
64cb8c90 | 364 | struct file_hash_entry_pool *file_hash_entries; |
1824e2bd | 365 | |
248dfc42 | 366 | /* Negative path lookup hash table. */ |
367 | struct htab *nonexistent_file_hash; | |
368 | struct obstack nonexistent_file_ob; | |
369 | ||
1824e2bd | 370 | /* Nonzero means don't look for #include "foo" the source-file |
371 | directory. */ | |
372 | bool quote_ignores_source_dir; | |
373 | ||
678704be | 374 | /* Nonzero if any file has contained #pragma once or #import has |
68faebf4 | 375 | been used. */ |
376 | bool seen_once_only; | |
e69f4d0e | 377 | |
7ef5b942 | 378 | /* Multiple include optimization. */ |
28898f20 | 379 | const cpp_hashnode *mi_cmacro; |
380 | const cpp_hashnode *mi_ind_cmacro; | |
fa233610 | 381 | bool mi_valid; |
28898f20 | 382 | |
83dcbb5c | 383 | /* Lexing. */ |
384 | cpp_token *cur_token; | |
385 | tokenrun base_run, *cur_run; | |
fb5ab82c | 386 | unsigned int lookaheads; |
83dcbb5c | 387 | |
d10cfa8d | 388 | /* Nonzero prevents the lexer from re-using the token runs. */ |
83dcbb5c | 389 | unsigned int keep_tokens; |
390 | ||
28898f20 | 391 | /* Error counter for exit code. */ |
392 | unsigned int errors; | |
393 | ||
28898f20 | 394 | /* Buffer to hold macro definition string. */ |
395 | unsigned char *macro_buffer; | |
396 | unsigned int macro_buffer_len; | |
397 | ||
9a432f9a | 398 | /* Descriptor for converting from the source character set to the |
399 | execution character set. */ | |
400 | struct cset_converter narrow_cset_desc; | |
ebc03810 | 401 | |
924bbf02 | 402 | /* Descriptor for converting from the source character set to the |
403 | UTF-16 execution character set. */ | |
404 | struct cset_converter char16_cset_desc; | |
405 | ||
406 | /* Descriptor for converting from the source character set to the | |
407 | UTF-32 execution character set. */ | |
408 | struct cset_converter char32_cset_desc; | |
409 | ||
9a432f9a | 410 | /* Descriptor for converting from the source character set to the |
411 | wide execution character set. */ | |
412 | struct cset_converter wide_cset_desc; | |
ebc03810 | 413 | |
9c343313 | 414 | /* Date and time text. Calculated together if either is requested. */ |
fe4dcd90 | 415 | const unsigned char *date; |
416 | const unsigned char *time; | |
28898f20 | 417 | |
f9b5f742 | 418 | /* EOF token, and a token forcing paste avoidance. */ |
419 | cpp_token avoid_paste; | |
420 | cpp_token eof; | |
421 | ||
61191376 | 422 | /* Opaque handle to the dependencies of mkdeps.c. */ |
28898f20 | 423 | struct deps *deps; |
424 | ||
425 | /* Obstack holding all macro hash nodes. This never shrinks. | |
f03668bd | 426 | See identifiers.c */ |
0d086e18 | 427 | struct obstack hash_ob; |
28898f20 | 428 | |
429 | /* Obstack holding buffer and conditional structures. This is a | |
f03668bd | 430 | real stack. See directives.c. */ |
0d086e18 | 431 | struct obstack buffer_ob; |
28898f20 | 432 | |
433 | /* Pragma table - dynamic, because a library user can add to the | |
434 | list of recognized pragmas. */ | |
435 | struct pragma_entry *pragmas; | |
436 | ||
5c120a72 | 437 | /* Call backs to cpplib client. */ |
28898f20 | 438 | struct cpp_callbacks cb; |
439 | ||
b1a9ff83 | 440 | /* Identifier hash table. */ |
0d086e18 | 441 | struct ht *hash_table; |
442 | ||
5bbf045f | 443 | /* Expression parser stack. */ |
444 | struct op *op_stack, *op_limit; | |
445 | ||
28898f20 | 446 | /* User visible options. */ |
447 | struct cpp_options opts; | |
448 | ||
449 | /* Special nodes - identifiers with predefined significance to the | |
450 | preprocessor. */ | |
451 | struct spec_nodes spec_nodes; | |
452 | ||
0d086e18 | 453 | /* Whether cpplib owns the hashtable. */ |
1824e2bd | 454 | bool our_hashtable; |
0bb65704 | 455 | |
fb83e0d6 | 456 | /* Traditional preprocessing output buffer (a logical line). */ |
457 | struct | |
458 | { | |
fe4dcd90 | 459 | unsigned char *base; |
460 | unsigned char *limit; | |
461 | unsigned char *cur; | |
ed000086 | 462 | source_location first_line; |
fb83e0d6 | 463 | } out; |
464 | ||
f03668bd | 465 | /* Used for buffer overlays by traditional.c. */ |
fe4dcd90 | 466 | const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; |
610625e3 | 467 | |
573aba85 | 468 | /* A saved list of the defined macros, for dependency checking |
469 | of precompiled headers. */ | |
470 | struct cpp_savedstate *savedstate; | |
ce079f70 | 471 | |
472 | /* Next value of __COUNTER__ macro. */ | |
473 | unsigned int counter; | |
28898f20 | 474 | }; |
475 | ||
93ce8ce4 | 476 | /* Character classes. Based on the more primitive macros in safe-ctype.h. |
1e8b9746 | 477 | If the definition of `numchar' looks odd to you, please look up the |
78719282 | 478 | definition of a pp-number in the C standard [section 6.4.8 of C99]. |
479 | ||
480 | In the unlikely event that characters other than \r and \n enter | |
f03668bd | 481 | the set is_vspace, the macro handle_newline() in lex.c must be |
78719282 | 482 | updated. */ |
2ff3ad1d | 483 | #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) |
1e8b9746 | 484 | |
93ce8ce4 | 485 | #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) |
486 | #define is_numchar(x) ISIDNUM(x) | |
487 | #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
488 | #define is_numstart(x) ISDIGIT(x) | |
489 | #define is_hspace(x) ISBLANK(x) | |
490 | #define is_vspace(x) IS_VSPACE(x) | |
491 | #define is_nvspace(x) IS_NVSPACE(x) | |
492 | #define is_space(x) IS_SPACE_OR_NUL(x) | |
1e8b9746 | 493 | |
93ce8ce4 | 494 | /* This table is constant if it can be initialized at compile time, |
1e8b9746 | 495 | which is the case if cpp was compiled with GCC >=2.7, or another |
496 | compiler that supports C99. */ | |
b3954366 | 497 | #if HAVE_DESIGNATED_INITIALIZERS |
b3954366 | 498 | extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
1e8b9746 | 499 | #else |
b3954366 | 500 | extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
1e8b9746 | 501 | #endif |
502 | ||
503 | /* Macros. */ | |
504 | ||
610625e3 | 505 | static inline int cpp_in_system_header (cpp_reader *); |
506 | static inline int | |
507 | cpp_in_system_header (cpp_reader *pfile) | |
508 | { | |
509 | return pfile->buffer ? pfile->buffer->sysp : 0; | |
510 | } | |
53c052ca | 511 | #define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic) |
512 | #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional) | |
1e8b9746 | 513 | |
927b511f | 514 | static inline int cpp_in_primary_file (cpp_reader *); |
515 | static inline int | |
516 | cpp_in_primary_file (cpp_reader *pfile) | |
517 | { | |
518 | return pfile->line_table->depth == 1; | |
519 | } | |
520 | ||
f03668bd | 521 | /* In macro.c */ |
f7fdd7a1 | 522 | extern void _cpp_free_definition (cpp_hashnode *); |
523 | extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
524 | extern void _cpp_pop_context (cpp_reader *); | |
525 | extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
fe4dcd90 | 526 | const unsigned char *, size_t); |
f7fdd7a1 | 527 | extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *); |
528 | extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, | |
529 | unsigned int); | |
fe4dcd90 | 530 | extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, |
531 | cpp_hashnode *); | |
b75b98aa | 532 | extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); |
533 | extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
534 | const cpp_token *, unsigned int); | |
89768577 | 535 | extern void _cpp_backup_tokens_direct (cpp_reader *, unsigned int); |
b75b98aa | 536 | |
f03668bd | 537 | /* In identifiers.c */ |
f7fdd7a1 | 538 | extern void _cpp_init_hashtable (cpp_reader *, hash_table *); |
539 | extern void _cpp_destroy_hashtable (cpp_reader *); | |
73a17672 | 540 | |
f03668bd | 541 | /* In files.c */ |
64386834 | 542 | typedef struct _cpp_file _cpp_file; |
04c0bfd0 | 543 | extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, |
544 | bool, int); | |
64386834 | 545 | extern bool _cpp_find_failed (_cpp_file *); |
68faebf4 | 546 | extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); |
f7fdd7a1 | 547 | extern void _cpp_fake_include (cpp_reader *, const char *); |
64386834 | 548 | extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool); |
1824e2bd | 549 | extern bool _cpp_stack_include (cpp_reader *, const char *, int, |
550 | enum include_type); | |
f7fdd7a1 | 551 | extern int _cpp_compare_file_date (cpp_reader *, const char *, int); |
552 | extern void _cpp_report_missing_guards (cpp_reader *); | |
1824e2bd | 553 | extern void _cpp_init_files (cpp_reader *); |
554 | extern void _cpp_cleanup_files (cpp_reader *); | |
555 | extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *); | |
9f787687 | 556 | extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); |
557 | extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
cca5dddc | 558 | extern struct stat *_cpp_get_file_stat (_cpp_file *); |
1e8b9746 | 559 | |
f03668bd | 560 | /* In expr.c */ |
536a48ee | 561 | extern bool _cpp_parse_expr (cpp_reader *, bool); |
f7fdd7a1 | 562 | extern struct op *_cpp_expand_op_stack (cpp_reader *); |
1e8b9746 | 563 | |
f03668bd | 564 | /* In lex.c */ |
f7fdd7a1 | 565 | extern void _cpp_process_line_notes (cpp_reader *, int); |
566 | extern void _cpp_clean_line (cpp_reader *); | |
567 | extern bool _cpp_get_fresh_line (cpp_reader *); | |
568 | extern bool _cpp_skip_block_comment (cpp_reader *); | |
569 | extern cpp_token *_cpp_temp_token (cpp_reader *); | |
570 | extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
571 | extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
572 | extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); | |
573 | extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
0578f103 | 574 | |
f03668bd | 575 | /* In init.c. */ |
f7fdd7a1 | 576 | extern void _cpp_maybe_push_include_file (cpp_reader *); |
fe560637 | 577 | |
f03668bd | 578 | /* In directives.c */ |
f7fdd7a1 | 579 | extern int _cpp_test_assertion (cpp_reader *, unsigned int *); |
580 | extern int _cpp_handle_directive (cpp_reader *, int); | |
581 | extern void _cpp_define_builtin (cpp_reader *, const char *); | |
582 | extern char ** _cpp_save_pragma_names (cpp_reader *); | |
583 | extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
2d507e67 | 584 | extern int _cpp_do__Pragma (cpp_reader *); |
f7fdd7a1 | 585 | extern void _cpp_init_directives (cpp_reader *); |
586 | extern void _cpp_init_internal_pragmas (cpp_reader *); | |
587 | extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
4999c35b | 588 | linenum_type, unsigned int); |
f7fdd7a1 | 589 | extern void _cpp_pop_buffer (cpp_reader *); |
e057cf7c | 590 | |
fcde64dc | 591 | /* In directives.c */ |
592 | struct _cpp_dir_only_callbacks | |
593 | { | |
594 | /* Called to print a block of lines. */ | |
595 | void (*print_lines) (int, const void *, size_t); | |
596 | void (*maybe_print_line) (source_location); | |
597 | }; | |
598 | ||
599 | extern void _cpp_preprocess_dir_only (cpp_reader *, | |
600 | const struct _cpp_dir_only_callbacks *); | |
601 | ||
f03668bd | 602 | /* In traditional.c. */ |
69edc0b3 | 603 | extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *); |
f7fdd7a1 | 604 | extern bool _cpp_read_logical_line_trad (cpp_reader *); |
fe4dcd90 | 605 | extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, |
606 | size_t); | |
f7fdd7a1 | 607 | extern void _cpp_remove_overlay (cpp_reader *); |
608 | extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); | |
609 | extern bool _cpp_expansions_different_trad (const cpp_macro *, | |
610 | const cpp_macro *); | |
fe4dcd90 | 611 | extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, |
612 | unsigned char *); | |
f7fdd7a1 | 613 | extern size_t _cpp_replacement_text_len (const cpp_macro *); |
0bb65704 | 614 | |
f03668bd | 615 | /* In charset.c. */ |
bce47149 | 616 | |
617 | /* The normalization state at this point in the sequence. | |
618 | It starts initialized to all zeros, and at the end | |
619 | 'level' is the normalization level of the sequence. */ | |
620 | ||
621 | struct normalize_state | |
622 | { | |
623 | /* The previous character. */ | |
624 | cppchar_t previous; | |
625 | /* The combining class of the previous character. */ | |
626 | unsigned char prev_class; | |
627 | /* The lowest normalization level so far. */ | |
628 | enum cpp_normalize_level level; | |
629 | }; | |
630 | #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
631 | #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
632 | ||
633 | /* We saw a character that matches ISIDNUM(), update a | |
634 | normalize_state appropriately. */ | |
635 | #define NORMALIZE_STATE_UPDATE_IDNUM(st) \ | |
636 | ((st)->previous = 0, (st)->prev_class = 0) | |
637 | ||
fe4dcd90 | 638 | extern cppchar_t _cpp_valid_ucn (cpp_reader *, const unsigned char **, |
bce47149 | 639 | const unsigned char *, int, |
640 | struct normalize_state *state); | |
9a432f9a | 641 | extern void _cpp_destroy_iconv (cpp_reader *); |
fe4dcd90 | 642 | extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, |
643 | unsigned char *, size_t, size_t, | |
d656d07a | 644 | const unsigned char **, off_t *); |
57ba96e9 | 645 | extern const char *_cpp_default_encoding (void); |
bb1fa6bb | 646 | extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, |
647 | const unsigned char *id, | |
648 | size_t len); | |
2cbf1359 | 649 | |
c95d8aaa | 650 | /* Utility routines and macros. */ |
fe4dcd90 | 651 | #define DSC(str) (const unsigned char *)str, sizeof str - 1 |
c95d8aaa | 652 | |
28898f20 | 653 | /* These are inline functions instead of macros so we can get type |
654 | checking. */ | |
fe4dcd90 | 655 | static inline int ustrcmp (const unsigned char *, const unsigned char *); |
656 | static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
657 | size_t); | |
658 | static inline size_t ustrlen (const unsigned char *); | |
659 | static inline unsigned char *uxstrdup (const unsigned char *); | |
660 | static inline unsigned char *ustrchr (const unsigned char *, int); | |
661 | static inline int ufputs (const unsigned char *, FILE *); | |
28898f20 | 662 | |
bb30d1f4 | 663 | /* Use a const char for the second parameter since it is usually a literal. */ |
664 | static inline int ustrcspn (const unsigned char *, const char *); | |
665 | ||
28898f20 | 666 | static inline int |
fe4dcd90 | 667 | ustrcmp (const unsigned char *s1, const unsigned char *s2) |
28898f20 | 668 | { |
669 | return strcmp ((const char *)s1, (const char *)s2); | |
670 | } | |
671 | ||
672 | static inline int | |
fe4dcd90 | 673 | ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) |
28898f20 | 674 | { |
675 | return strncmp ((const char *)s1, (const char *)s2, n); | |
676 | } | |
677 | ||
bb30d1f4 | 678 | static inline int |
679 | ustrcspn (const unsigned char *s1, const char *s2) | |
680 | { | |
681 | return strcspn ((const char *)s1, s2); | |
682 | } | |
683 | ||
28898f20 | 684 | static inline size_t |
fe4dcd90 | 685 | ustrlen (const unsigned char *s1) |
28898f20 | 686 | { |
687 | return strlen ((const char *)s1); | |
688 | } | |
689 | ||
fe4dcd90 | 690 | static inline unsigned char * |
691 | uxstrdup (const unsigned char *s1) | |
28898f20 | 692 | { |
fe4dcd90 | 693 | return (unsigned char *) xstrdup ((const char *)s1); |
28898f20 | 694 | } |
695 | ||
fe4dcd90 | 696 | static inline unsigned char * |
697 | ustrchr (const unsigned char *s1, int c) | |
28898f20 | 698 | { |
fe4dcd90 | 699 | return (unsigned char *) strchr ((const char *)s1, c); |
28898f20 | 700 | } |
701 | ||
702 | static inline int | |
fe4dcd90 | 703 | ufputs (const unsigned char *s, FILE *f) |
28898f20 | 704 | { |
705 | return fputs ((const char *)s, f); | |
706 | } | |
707 | ||
d856c8a6 | 708 | #endif /* ! LIBCPP_INTERNAL_H */ |