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be0dbdab GM |
1 | /* ebrowse.c --- parsing files for the ebrowse C++ browser |
2 | ||
6666a3c3 | 3 | Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, |
fa8bc89d | 4 | 2000, 2001, 2002 Free Software Foundation Inc. |
69bfc389 | 5 | |
be0dbdab GM |
6 | This file is part of GNU Emacs. |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
6666a3c3 RS |
19 | along with GNU Emacs; see the file COPYING. If not, write to the |
20 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
be0dbdab | 22 | |
53245ee2 DL |
23 | #ifdef HAVE_CONFIG_H |
24 | #include <config.h> | |
25 | #endif | |
26 | ||
be0dbdab | 27 | #include <stdio.h> |
69bfc389 PJ |
28 | |
29 | #ifdef HAVE_STDLIB_H | |
be0dbdab | 30 | #include <stdlib.h> |
69bfc389 PJ |
31 | #endif |
32 | ||
33 | #ifdef HAVE_STRING_H | |
be0dbdab | 34 | #include <string.h> |
69bfc389 PJ |
35 | #endif |
36 | ||
be0dbdab GM |
37 | #include <ctype.h> |
38 | #include <assert.h> | |
39 | #include "getopt.h" | |
40 | ||
75c911eb EZ |
41 | /* The SunOS compiler doesn't have SEEK_END. */ |
42 | #ifndef SEEK_END | |
43 | #define SEEK_END 2 | |
44 | #endif | |
45 | ||
be0dbdab GM |
46 | /* Conditionalize function prototypes. */ |
47 | ||
48 | #ifdef PROTOTYPES /* From config.h. */ | |
49 | #define P_(x) x | |
50 | #else | |
51 | #define P_(x) () | |
52 | #endif | |
53 | ||
54 | /* Value is non-zero if strings X and Y compare equal. */ | |
55 | ||
56 | #define streq(X, Y) (*(X) == *(Y) && strcmp ((X) + 1, (Y) + 1) == 0) | |
57 | ||
58 | /* The ubiquitous `max' and `min' macros. */ | |
59 | ||
60 | #ifndef max | |
61 | #define max(X, Y) ((X) > (Y) ? (X) : (Y)) | |
62 | #define min(X, Y) ((X) < (Y) ? (X) : (Y)) | |
63 | #endif | |
64 | ||
65 | /* Files are read in chunks of this number of bytes. */ | |
66 | ||
67 | #define READ_CHUNK_SIZE (100 * 1024) | |
68 | ||
69 | /* The character used as a separator in path lists (like $PATH). */ | |
70 | ||
94549912 | 71 | #if defined(__MSDOS__) |
fd72561d EZ |
72 | #define PATH_LIST_SEPARATOR ';' |
73 | #define FILENAME_EQ(X,Y) (strcasecmp(X,Y) == 0) | |
74 | #else | |
94549912 JR |
75 | #if defined(WINDOWSNT) |
76 | #define PATH_LIST_SEPARATOR ';' | |
77 | #define FILENAME_EQ(X,Y) (stricmp(X,Y) == 0) | |
78 | #else | |
be0dbdab | 79 | #define PATH_LIST_SEPARATOR ':' |
fd72561d EZ |
80 | #define FILENAME_EQ(X,Y) (streq(X,Y)) |
81 | #endif | |
94549912 | 82 | #endif |
be0dbdab GM |
83 | /* The default output file name. */ |
84 | ||
42eaac21 | 85 | #define DEFAULT_OUTFILE "BROWSE" |
be0dbdab GM |
86 | |
87 | /* A version string written to the output file. Change this whenever | |
88 | the structure of the output file changes. */ | |
89 | ||
90 | #define EBROWSE_FILE_VERSION "ebrowse 5.0" | |
91 | ||
92 | /* The output file consists of a tree of Lisp objects, with major | |
93 | nodes built out of Lisp structures. These are the heads of the | |
94 | Lisp structs with symbols identifying their type. */ | |
95 | ||
96 | #define TREE_HEADER_STRUCT "[ebrowse-hs " | |
97 | #define TREE_STRUCT "[ebrowse-ts " | |
98 | #define MEMBER_STRUCT "[ebrowse-ms " | |
99 | #define BROWSE_STRUCT "[ebrowse-bs " | |
100 | #define CLASS_STRUCT "[ebrowse-cs " | |
101 | ||
102 | /* The name of the symbol table entry for global functions, variables, | |
103 | defines etc. This name also appears in the browser display. */ | |
104 | ||
105 | #define GLOBALS_NAME "*Globals*" | |
106 | ||
107 | /* Token definitions. */ | |
108 | ||
109 | enum token | |
110 | { | |
111 | YYEOF = 0, /* end of file */ | |
112 | CSTRING = 256, /* string constant */ | |
113 | CCHAR, /* character constant */ | |
114 | CINT, /* integral constant */ | |
115 | CFLOAT, /* real constant */ | |
116 | ||
117 | ELLIPSIS, /* ... */ | |
118 | LSHIFTASGN, /* <<= */ | |
119 | RSHIFTASGN, /* >>= */ | |
120 | ARROWSTAR, /* ->* */ | |
121 | IDENT, /* identifier */ | |
122 | DIVASGN, /* /= */ | |
123 | INC, /* ++ */ | |
124 | ADDASGN, /* += */ | |
125 | DEC, /* -- */ | |
126 | ARROW, /* -> */ | |
127 | SUBASGN, /* -= */ | |
128 | MULASGN, /* *= */ | |
129 | MODASGN, /* %= */ | |
130 | LOR, /* || */ | |
131 | ORASGN, /* |= */ | |
132 | LAND, /* && */ | |
133 | ANDASGN, /* &= */ | |
134 | XORASGN, /* ^= */ | |
135 | POINTSTAR, /* .* */ | |
136 | DCOLON, /* :: */ | |
137 | EQ, /* == */ | |
138 | NE, /* != */ | |
139 | LE, /* <= */ | |
140 | LSHIFT, /* << */ | |
141 | GE, /* >= */ | |
142 | RSHIFT, /* >> */ | |
143 | ||
144 | /* Keywords. The undef's are there because these | |
145 | three symbols are very likely to be defined somewhere. */ | |
146 | #undef BOOL | |
147 | #undef TRUE | |
148 | #undef FALSE | |
149 | ||
150 | ASM, /* asm */ | |
151 | AUTO, /* auto */ | |
152 | BREAK, /* break */ | |
153 | CASE, /* case */ | |
154 | CATCH, /* catch */ | |
155 | CHAR, /* char */ | |
156 | CLASS, /* class */ | |
157 | CONST, /* const */ | |
158 | CONTINUE, /* continue */ | |
159 | DEFAULT, /* default */ | |
160 | DELETE, /* delete */ | |
161 | DO, /* do */ | |
162 | DOUBLE, /* double */ | |
163 | ELSE, /* else */ | |
164 | ENUM, /* enum */ | |
165 | EXTERN, /* extern */ | |
166 | FLOAT, /* float */ | |
167 | FOR, /* for */ | |
168 | FRIEND, /* friend */ | |
169 | GOTO, /* goto */ | |
170 | IF, /* if */ | |
171 | T_INLINE, /* inline */ | |
172 | INT, /* int */ | |
173 | LONG, /* long */ | |
174 | NEW, /* new */ | |
175 | OPERATOR, /* operator */ | |
176 | PRIVATE, /* private */ | |
177 | PROTECTED, /* protected */ | |
178 | PUBLIC, /* public */ | |
179 | REGISTER, /* register */ | |
180 | RETURN, /* return */ | |
181 | SHORT, /* short */ | |
182 | SIGNED, /* signed */ | |
183 | SIZEOF, /* sizeof */ | |
184 | STATIC, /* static */ | |
185 | STRUCT, /* struct */ | |
186 | SWITCH, /* switch */ | |
187 | TEMPLATE, /* template */ | |
188 | THIS, /* this */ | |
189 | THROW, /* throw */ | |
190 | TRY, /* try */ | |
191 | TYPEDEF, /* typedef */ | |
192 | UNION, /* union */ | |
193 | UNSIGNED, /* unsigned */ | |
194 | VIRTUAL, /* virtual */ | |
195 | VOID, /* void */ | |
196 | VOLATILE, /* volatile */ | |
197 | WHILE, /* while */ | |
198 | MUTABLE, /* mutable */ | |
199 | BOOL, /* bool */ | |
200 | TRUE, /* true */ | |
201 | FALSE, /* false */ | |
202 | SIGNATURE, /* signature (GNU extension) */ | |
203 | NAMESPACE, /* namespace */ | |
204 | EXPLICIT, /* explicit */ | |
205 | TYPENAME, /* typename */ | |
206 | CONST_CAST, /* const_cast */ | |
207 | DYNAMIC_CAST, /* dynamic_cast */ | |
208 | REINTERPRET_CAST, /* reinterpret_cast */ | |
209 | STATIC_CAST, /* static_cast */ | |
210 | TYPEID, /* typeid */ | |
211 | USING, /* using */ | |
212 | WCHAR /* wchar_t */ | |
213 | }; | |
214 | ||
215 | /* Storage classes, in a wider sense. */ | |
216 | ||
217 | enum sc | |
218 | { | |
219 | SC_UNKNOWN, | |
220 | SC_MEMBER, /* Is an instance member. */ | |
221 | SC_STATIC, /* Is static member. */ | |
222 | SC_FRIEND, /* Is friend function. */ | |
223 | SC_TYPE /* Is a type definition. */ | |
224 | }; | |
225 | ||
226 | /* Member visibility. */ | |
227 | ||
228 | enum visibility | |
229 | { | |
230 | V_PUBLIC, | |
231 | V_PROTECTED, | |
232 | V_PRIVATE | |
233 | }; | |
234 | ||
235 | /* Member flags. */ | |
236 | ||
237 | #define F_VIRTUAL 1 /* Is virtual function. */ | |
238 | #define F_INLINE 2 /* Is inline function. */ | |
239 | #define F_CONST 4 /* Is const. */ | |
240 | #define F_PURE 8 /* Is pure virtual function. */ | |
241 | #define F_MUTABLE 16 /* Is mutable. */ | |
242 | #define F_TEMPLATE 32 /* Is a template. */ | |
243 | #define F_EXPLICIT 64 /* Is explicit constructor. */ | |
244 | #define F_THROW 128 /* Has a throw specification. */ | |
245 | #define F_EXTERNC 256 /* Is declared extern "C". */ | |
246 | #define F_DEFINE 512 /* Is a #define. */ | |
247 | ||
248 | /* Two macros to set and test a bit in an int. */ | |
249 | ||
250 | #define SET_FLAG(F, FLAG) ((F) |= (FLAG)) | |
251 | #define HAS_FLAG(F, FLAG) (((F) & (FLAG)) != 0) | |
252 | ||
253 | /* Structure describing a class member. */ | |
254 | ||
255 | struct member | |
256 | { | |
257 | struct member *next; /* Next in list of members. */ | |
258 | struct member *anext; /* Collision chain in member_table. */ | |
259 | struct member **list; /* Pointer to list in class. */ | |
260 | unsigned param_hash; /* Hash value for parameter types. */ | |
261 | int vis; /* Visibility (public, ...). */ | |
262 | int flags; /* See F_* above. */ | |
263 | char *regexp; /* Matching regular expression. */ | |
264 | char *filename; /* Don't free this shared string. */ | |
265 | int pos; /* Buffer position of occurrence. */ | |
266 | char *def_regexp; /* Regular expression matching definition. */ | |
267 | char *def_filename; /* File name of definition. */ | |
268 | int def_pos; /* Buffer position of definition. */ | |
269 | char name[1]; /* Member name. */ | |
270 | }; | |
271 | ||
272 | /* Structures of this type are used to connect class structures with | |
273 | their super and subclasses. */ | |
274 | ||
275 | struct link | |
276 | { | |
277 | struct sym *sym; /* The super or subclass. */ | |
278 | struct link *next; /* Next in list or NULL. */ | |
279 | }; | |
280 | ||
281 | /* Structure used to record namespace aliases. */ | |
282 | ||
283 | struct alias | |
284 | { | |
285 | struct alias *next; /* Next in list. */ | |
407094f4 GM |
286 | struct sym *namesp; /* Namespace in which defined. */ |
287 | struct link *aliasee; /* List of aliased namespaces (A::B::C...). */ | |
be0dbdab GM |
288 | char name[1]; /* Alias name. */ |
289 | }; | |
290 | ||
291 | /* The structure used to describe a class in the symbol table, | |
292 | or a namespace in all_namespaces. */ | |
293 | ||
294 | struct sym | |
295 | { | |
296 | int flags; /* Is class a template class?. */ | |
297 | unsigned char visited; /* Used to find circles. */ | |
298 | struct sym *next; /* Hash collision list. */ | |
299 | struct link *subs; /* List of subclasses. */ | |
300 | struct link *supers; /* List of superclasses. */ | |
301 | struct member *vars; /* List of instance variables. */ | |
302 | struct member *fns; /* List of instance functions. */ | |
303 | struct member *static_vars; /* List of static variables. */ | |
304 | struct member *static_fns; /* List of static functions. */ | |
305 | struct member *friends; /* List of friend functions. */ | |
306 | struct member *types; /* List of local types. */ | |
307 | char *regexp; /* Matching regular expression. */ | |
308 | int pos; /* Buffer position. */ | |
309 | char *filename; /* File in which it can be found. */ | |
310 | char *sfilename; /* File in which members can be found. */ | |
311 | struct sym *namesp; /* Namespace in which defined. . */ | |
be0dbdab GM |
312 | char name[1]; /* Name of the class. */ |
313 | }; | |
314 | ||
315 | /* Experimental: Print info for `--position-info'. We print | |
316 | '(CLASS-NAME SCOPE MEMBER-NAME). */ | |
317 | ||
318 | #define P_DEFN 1 | |
319 | #define P_DECL 2 | |
320 | ||
321 | int info_where; | |
322 | struct sym *info_cls = NULL; | |
323 | struct member *info_member = NULL; | |
324 | ||
325 | /* Experimental. For option `--position-info', the buffer position we | |
326 | are interested in. When this position is reached, print out | |
327 | information about what we know about that point. */ | |
328 | ||
329 | int info_position = -1; | |
330 | ||
331 | /* Command line options structure for getopt_long. */ | |
332 | ||
333 | struct option options[] = | |
334 | { | |
335 | {"append", no_argument, NULL, 'a'}, | |
336 | {"files", required_argument, NULL, 'f'}, | |
337 | {"help", no_argument, NULL, -2}, | |
338 | {"min-regexp-length", required_argument, NULL, 'm'}, | |
339 | {"max-regexp-length", required_argument, NULL, 'M'}, | |
340 | {"no-nested-classes", no_argument, NULL, 'n'}, | |
341 | {"no-regexps", no_argument, NULL, 'x'}, | |
342 | {"no-structs-or-unions", no_argument, NULL, 's'}, | |
343 | {"output-file", required_argument, NULL, 'o'}, | |
344 | {"position-info", required_argument, NULL, 'p'}, | |
345 | {"search-path", required_argument, NULL, 'I'}, | |
346 | {"verbose", no_argument, NULL, 'v'}, | |
347 | {"version", no_argument, NULL, -3}, | |
348 | {"very-verbose", no_argument, NULL, 'V'}, | |
349 | {NULL, 0, NULL, 0} | |
350 | }; | |
351 | ||
352 | /* Semantic values of tokens. Set by yylex.. */ | |
353 | ||
354 | unsigned yyival; /* Set for token CINT. */ | |
355 | char *yytext; /* Set for token IDENT. */ | |
356 | char *yytext_end; | |
357 | ||
358 | /* Output file. */ | |
359 | ||
360 | FILE *yyout; | |
361 | ||
362 | /* Current line number. */ | |
363 | ||
364 | int yyline; | |
365 | ||
366 | /* The name of the current input file. */ | |
367 | ||
368 | char *filename; | |
369 | ||
370 | /* Three character class vectors, and macros to test membership | |
371 | of characters. */ | |
372 | ||
373 | char is_ident[255]; | |
374 | char is_digit[255]; | |
375 | char is_white[255]; | |
376 | ||
377 | #define IDENTP(C) is_ident[(unsigned char) (C)] | |
378 | #define DIGITP(C) is_digit[(unsigned char) (C)] | |
379 | #define WHITEP(C) is_white[(unsigned char) (C)] | |
380 | ||
381 | /* Command line flags. */ | |
382 | ||
383 | int f_append; | |
384 | int f_verbose; | |
385 | int f_very_verbose; | |
386 | int f_structs = 1; | |
387 | int f_regexps = 1; | |
388 | int f_nested_classes = 1; | |
389 | ||
390 | /* Maximum and minimum lengths of regular expressions matching a | |
391 | member, class etc., for writing them to the output file. These are | |
392 | overridable from the command line. */ | |
393 | ||
394 | int min_regexp = 5; | |
395 | int max_regexp = 50; | |
396 | ||
397 | /* Input buffer. */ | |
398 | ||
399 | char *inbuffer; | |
400 | char *in; | |
401 | int inbuffer_size; | |
402 | ||
403 | /* Return the current buffer position in the input file. */ | |
404 | ||
405 | #define BUFFER_POS() (in - inbuffer) | |
406 | ||
69bfc389 | 407 | /* If current lookahead is CSTRING, the following points to the |
be0dbdab GM |
408 | first character in the string constant. Used for recognizing |
409 | extern "C". */ | |
410 | ||
411 | char *string_start; | |
412 | ||
413 | /* The size of the hash tables for classes.and members. Should be | |
414 | prime. */ | |
415 | ||
416 | #define TABLE_SIZE 1001 | |
417 | ||
418 | /* The hash table for class symbols. */ | |
419 | ||
420 | struct sym *class_table[TABLE_SIZE]; | |
421 | ||
422 | /* Hash table containing all member structures. This is generally | |
423 | faster for member lookup than traversing the member lists of a | |
424 | `struct sym'. */ | |
425 | ||
426 | struct member *member_table[TABLE_SIZE]; | |
427 | ||
407094f4 GM |
428 | /* Hash table for namespace aliases */ |
429 | ||
430 | struct alias *namespace_alias_table[TABLE_SIZE]; | |
431 | ||
be0dbdab GM |
432 | /* The special class symbol used to hold global functions, |
433 | variables etc. */ | |
434 | ||
435 | struct sym *global_symbols; | |
436 | ||
437 | /* The current namespace. */ | |
438 | ||
439 | struct sym *current_namespace; | |
440 | ||
441 | /* The list of all known namespaces. */ | |
442 | ||
443 | struct sym *all_namespaces; | |
444 | ||
445 | /* Stack of namespaces we're currently nested in, during the parse. */ | |
446 | ||
447 | struct sym **namespace_stack; | |
448 | int namespace_stack_size; | |
449 | int namespace_sp; | |
450 | ||
451 | /* The current lookahead token. */ | |
452 | ||
453 | int tk = -1; | |
454 | ||
455 | /* Structure describing a keyword. */ | |
456 | ||
457 | struct kw | |
458 | { | |
459 | char *name; /* Spelling. */ | |
460 | int tk; /* Token value. */ | |
461 | struct kw *next; /* Next in collision chain. */ | |
462 | }; | |
463 | ||
464 | /* Keywords are lookup up in a hash table of their own. */ | |
465 | ||
466 | #define KEYWORD_TABLE_SIZE 1001 | |
467 | struct kw *keyword_table[KEYWORD_TABLE_SIZE]; | |
468 | ||
469 | /* Search path. */ | |
470 | ||
471 | struct search_path | |
472 | { | |
473 | char *path; | |
474 | struct search_path *next; | |
475 | }; | |
476 | ||
477 | struct search_path *search_path; | |
478 | struct search_path *search_path_tail; | |
479 | ||
480 | /* Function prototypes. */ | |
481 | ||
482 | int yylex P_ ((void)); | |
483 | void yyparse P_ ((void)); | |
484 | void re_init_parser P_ ((void)); | |
485 | char *token_string P_ ((int)); | |
486 | char *matching_regexp P_ ((void)); | |
487 | void init_sym P_ ((void)); | |
488 | struct sym *add_sym P_ ((char *, struct sym *)); | |
489 | void add_link P_ ((struct sym *, struct sym *)); | |
490 | void add_member_defn P_ ((struct sym *, char *, char *, | |
491 | int, unsigned, int, int, int)); | |
492 | void add_member_decl P_ ((struct sym *, char *, char *, int, | |
493 | unsigned, int, int, int, int)); | |
494 | void dump_roots P_ ((FILE *)); | |
c43a1ff6 | 495 | void *xmalloc P_ ((int)); |
57b4c82e | 496 | void xfree P_ ((void *)); |
be0dbdab GM |
497 | void add_global_defn P_ ((char *, char *, int, unsigned, int, int, int)); |
498 | void add_global_decl P_ ((char *, char *, int, unsigned, int, int, int)); | |
499 | void add_define P_ ((char *, char *, int)); | |
500 | void mark_inherited_virtual P_ ((void)); | |
501 | void leave_namespace P_ ((void)); | |
502 | void enter_namespace P_ ((char *)); | |
407094f4 | 503 | void register_namespace_alias P_ ((char *, struct link *)); |
be0dbdab GM |
504 | void insert_keyword P_ ((char *, int)); |
505 | void re_init_scanner P_ ((void)); | |
506 | void init_scanner P_ ((void)); | |
507 | void usage P_ ((int)); | |
508 | void version P_ ((void)); | |
509 | void process_file P_ ((char *)); | |
510 | void add_search_path P_ ((char *)); | |
511 | FILE *open_file P_ ((char *)); | |
512 | int process_pp_line P_ ((void)); | |
513 | int dump_members P_ ((FILE *, struct member *)); | |
514 | void dump_sym P_ ((FILE *, struct sym *)); | |
515 | int dump_tree P_ ((FILE *, struct sym *)); | |
516 | struct member *find_member P_ ((struct sym *, char *, int, int, unsigned)); | |
517 | struct member *add_member P_ ((struct sym *, char *, int, int, unsigned)); | |
518 | void mark_virtual P_ ((struct sym *)); | |
519 | void mark_virtual P_ ((struct sym *)); | |
407094f4 | 520 | struct sym *make_namespace P_ ((char *, struct sym *)); |
be0dbdab GM |
521 | char *sym_scope P_ ((struct sym *)); |
522 | char *sym_scope_1 P_ ((struct sym *)); | |
523 | int skip_to P_ ((int)); | |
524 | void skip_matching P_ ((void)); | |
525 | void member P_ ((struct sym *, int)); | |
526 | void class_body P_ ((struct sym *, int)); | |
527 | void class_definition P_ ((struct sym *, int, int, int)); | |
8bef35f2 | 528 | void declaration P_ ((int)); |
be0dbdab GM |
529 | unsigned parm_list P_ ((int *)); |
530 | char *operator_name P_ ((int *)); | |
531 | struct sym *parse_classname P_ ((void)); | |
532 | struct sym *parse_qualified_ident_or_type P_ ((char **)); | |
533 | void parse_qualified_param_ident_or_type P_ ((char **)); | |
534 | int globals P_ ((int)); | |
e6a0814f | 535 | void yyerror P_ ((char *, char *)); |
be0dbdab GM |
536 | |
537 | ||
538 | \f | |
539 | /*********************************************************************** | |
540 | Utilities | |
541 | ***********************************************************************/ | |
542 | ||
543 | /* Print an error in a printf-like style with the current input file | |
544 | name and line number. */ | |
545 | ||
546 | void | |
e6a0814f GM |
547 | yyerror (format, s) |
548 | char *format, *s; | |
be0dbdab GM |
549 | { |
550 | fprintf (stderr, "%s:%d: ", filename, yyline); | |
e6a0814f | 551 | fprintf (stderr, format, s); |
be0dbdab GM |
552 | putc ('\n', stderr); |
553 | } | |
554 | ||
555 | ||
556 | /* Like malloc but print an error and exit if not enough memory is | |
38748aca | 557 | available. */ |
be0dbdab GM |
558 | |
559 | void * | |
c43a1ff6 | 560 | xmalloc (nbytes) |
be0dbdab GM |
561 | int nbytes; |
562 | { | |
563 | void *p = malloc (nbytes); | |
8bef35f2 GM |
564 | if (p == NULL) |
565 | { | |
e6a0814f | 566 | yyerror ("out of memory", NULL); |
65396510 | 567 | exit (EXIT_FAILURE); |
8bef35f2 GM |
568 | } |
569 | return p; | |
be0dbdab GM |
570 | } |
571 | ||
572 | ||
573 | /* Like realloc but print an error and exit if out of memory. */ | |
574 | ||
575 | void * | |
c43a1ff6 | 576 | xrealloc (p, sz) |
be0dbdab GM |
577 | void *p; |
578 | int sz; | |
579 | { | |
580 | p = realloc (p, sz); | |
8bef35f2 GM |
581 | if (p == NULL) |
582 | { | |
e6a0814f | 583 | yyerror ("out of memory", NULL); |
65396510 | 584 | exit (EXIT_FAILURE); |
8bef35f2 GM |
585 | } |
586 | return p; | |
be0dbdab GM |
587 | } |
588 | ||
589 | ||
57b4c82e GM |
590 | /* Like free but always check for null pointers.. */ |
591 | ||
592 | void | |
593 | xfree (p) | |
594 | void *p; | |
595 | { | |
596 | if (p) | |
597 | free (p); | |
598 | } | |
599 | ||
600 | ||
be0dbdab GM |
601 | /* Like strdup, but print an error and exit if not enough memory is |
602 | available.. If S is null, return null. */ | |
603 | ||
604 | char * | |
605 | xstrdup (s) | |
606 | char *s; | |
607 | { | |
608 | if (s) | |
c43a1ff6 | 609 | s = strcpy (xmalloc (strlen (s) + 1), s); |
be0dbdab GM |
610 | return s; |
611 | } | |
612 | ||
613 | ||
614 | \f | |
615 | /*********************************************************************** | |
616 | Symbols | |
617 | ***********************************************************************/ | |
618 | ||
619 | /* Initialize the symbol table. This currently only sets up the | |
620 | special symbol for globals (`*Globals*'). */ | |
621 | ||
622 | void | |
623 | init_sym () | |
624 | { | |
625 | global_symbols = add_sym (GLOBALS_NAME, NULL); | |
626 | } | |
627 | ||
628 | ||
629 | /* Add a symbol for class NAME to the symbol table. NESTED_IN_CLASS | |
630 | is the class in which class NAME was found. If it is null, | |
631 | this means the scope of NAME is the current namespace. | |
632 | ||
633 | If a symbol for NAME already exists, return that. Otherwise | |
634 | create a new symbol and set it to default values. */ | |
635 | ||
636 | struct sym * | |
637 | add_sym (name, nested_in_class) | |
638 | char *name; | |
639 | struct sym *nested_in_class; | |
640 | { | |
641 | struct sym *sym; | |
642 | unsigned h; | |
643 | char *s; | |
644 | struct sym *scope = nested_in_class ? nested_in_class : current_namespace; | |
645 | ||
646 | for (s = name, h = 0; *s; ++s) | |
647 | h = (h << 1) ^ *s; | |
648 | h %= TABLE_SIZE; | |
649 | ||
650 | for (sym = class_table[h]; sym; sym = sym->next) | |
651 | if (streq (name, sym->name) && sym->namesp == scope) | |
652 | break; | |
653 | ||
654 | if (sym == NULL) | |
655 | { | |
656 | if (f_very_verbose) | |
657 | { | |
658 | putchar ('\t'); | |
659 | puts (name); | |
660 | } | |
661 | ||
c43a1ff6 | 662 | sym = (struct sym *) xmalloc (sizeof *sym + strlen (name)); |
be0dbdab GM |
663 | bzero (sym, sizeof *sym); |
664 | strcpy (sym->name, name); | |
665 | sym->namesp = scope; | |
666 | sym->next = class_table[h]; | |
667 | class_table[h] = sym; | |
668 | } | |
669 | ||
670 | return sym; | |
671 | } | |
672 | ||
673 | ||
674 | /* Add links between superclass SUPER and subclass SUB. */ | |
675 | ||
676 | void | |
677 | add_link (super, sub) | |
678 | struct sym *super, *sub; | |
679 | { | |
680 | struct link *lnk, *lnk2, *p, *prev; | |
681 | ||
682 | /* See if a link already exists. */ | |
683 | for (p = super->subs, prev = NULL; | |
684 | p && strcmp (sub->name, p->sym->name) > 0; | |
685 | prev = p, p = p->next) | |
686 | ; | |
687 | ||
688 | /* Avoid duplicates. */ | |
689 | if (p == NULL || p->sym != sub) | |
690 | { | |
c43a1ff6 GM |
691 | lnk = (struct link *) xmalloc (sizeof *lnk); |
692 | lnk2 = (struct link *) xmalloc (sizeof *lnk2); | |
69bfc389 | 693 | |
be0dbdab GM |
694 | lnk->sym = sub; |
695 | lnk->next = p; | |
696 | ||
697 | if (prev) | |
698 | prev->next = lnk; | |
699 | else | |
700 | super->subs = lnk; | |
701 | ||
702 | lnk2->sym = super; | |
703 | lnk2->next = sub->supers; | |
704 | sub->supers = lnk2; | |
705 | } | |
706 | } | |
707 | ||
708 | ||
709 | /* Find in class CLS member NAME. | |
710 | ||
711 | VAR non-zero means look for a member variable; otherwise a function | |
712 | is searched. SC specifies what kind of member is searched---a | |
713 | static, or per-instance member etc. HASH is a hash code for the | |
714 | parameter types of functions. Value is a pointer to the member | |
715 | found or null if not found. */ | |
716 | ||
717 | struct member * | |
718 | find_member (cls, name, var, sc, hash) | |
719 | struct sym *cls; | |
720 | char *name; | |
721 | int var, sc; | |
722 | unsigned hash; | |
723 | { | |
724 | struct member **list; | |
725 | struct member *p; | |
726 | unsigned name_hash = 0; | |
727 | char *s; | |
728 | int i; | |
729 | ||
730 | switch (sc) | |
731 | { | |
732 | case SC_FRIEND: | |
733 | list = &cls->friends; | |
734 | break; | |
69bfc389 | 735 | |
be0dbdab GM |
736 | case SC_TYPE: |
737 | list = &cls->types; | |
738 | break; | |
69bfc389 | 739 | |
be0dbdab GM |
740 | case SC_STATIC: |
741 | list = var ? &cls->static_vars : &cls->static_fns; | |
742 | break; | |
69bfc389 | 743 | |
be0dbdab GM |
744 | default: |
745 | list = var ? &cls->vars : &cls->fns; | |
746 | break; | |
747 | } | |
748 | ||
749 | for (s = name; *s; ++s) | |
750 | name_hash = (name_hash << 1) ^ *s; | |
751 | i = name_hash % TABLE_SIZE; | |
752 | ||
753 | for (p = member_table[i]; p; p = p->anext) | |
754 | if (p->list == list && p->param_hash == hash && streq (name, p->name)) | |
755 | break; | |
756 | ||
757 | return p; | |
758 | } | |
759 | ||
760 | ||
761 | /* Add to class CLS information for the declaration of member NAME. | |
762 | REGEXP is a regexp matching the declaration, if non-null. POS is | |
763 | the position in the source where the declaration is found. HASH is | |
764 | a hash code for the parameter list of the member, if it's a | |
765 | function. VAR non-zero means member is a variable or type. SC | |
766 | specifies the type of member (instance member, static, ...). VIS | |
767 | is the member's visibility (public, protected, private). FLAGS is | |
768 | a bit set giving additional information about the member (see the | |
769 | F_* defines). */ | |
770 | ||
771 | void | |
772 | add_member_decl (cls, name, regexp, pos, hash, var, sc, vis, flags) | |
773 | struct sym *cls; | |
774 | char *name; | |
775 | char *regexp; | |
776 | int pos; | |
777 | unsigned hash; | |
778 | int var; | |
779 | int sc; | |
780 | int vis; | |
781 | int flags; | |
782 | { | |
783 | struct member *m; | |
784 | ||
785 | m = find_member (cls, name, var, sc, hash); | |
786 | if (m == NULL) | |
787 | m = add_member (cls, name, var, sc, hash); | |
788 | ||
789 | /* Have we seen a new filename? If so record that. */ | |
fd72561d | 790 | if (!cls->filename || !FILENAME_EQ (cls->filename, filename)) |
be0dbdab GM |
791 | m->filename = filename; |
792 | ||
793 | m->regexp = regexp; | |
794 | m->pos = pos; | |
795 | m->flags = flags; | |
796 | ||
797 | switch (vis) | |
798 | { | |
799 | case PRIVATE: | |
800 | m->vis = V_PRIVATE; | |
801 | break; | |
802 | ||
803 | case PROTECTED: | |
804 | m->vis = V_PROTECTED; | |
805 | break; | |
806 | ||
807 | case PUBLIC: | |
808 | m->vis = V_PUBLIC; | |
809 | break; | |
810 | } | |
811 | ||
812 | info_where = P_DECL; | |
813 | info_cls = cls; | |
814 | info_member = m; | |
815 | } | |
816 | ||
817 | ||
818 | /* Add to class CLS information for the definition of member NAME. | |
819 | REGEXP is a regexp matching the declaration, if non-null. POS is | |
820 | the position in the source where the declaration is found. HASH is | |
821 | a hash code for the parameter list of the member, if it's a | |
822 | function. VAR non-zero means member is a variable or type. SC | |
823 | specifies the type of member (instance member, static, ...). VIS | |
824 | is the member's visibility (public, protected, private). FLAGS is | |
825 | a bit set giving additional information about the member (see the | |
826 | F_* defines). */ | |
827 | ||
828 | void | |
829 | add_member_defn (cls, name, regexp, pos, hash, var, sc, flags) | |
830 | struct sym *cls; | |
831 | char *name; | |
832 | char *regexp; | |
833 | int pos; | |
834 | unsigned hash; | |
835 | int var; | |
836 | int sc; | |
837 | int flags; | |
838 | { | |
839 | struct member *m; | |
840 | ||
841 | if (sc == SC_UNKNOWN) | |
842 | { | |
843 | m = find_member (cls, name, var, SC_MEMBER, hash); | |
844 | if (m == NULL) | |
845 | { | |
846 | m = find_member (cls, name, var, SC_STATIC, hash); | |
847 | if (m == NULL) | |
848 | m = add_member (cls, name, var, sc, hash); | |
849 | } | |
850 | } | |
851 | else | |
852 | { | |
853 | m = find_member (cls, name, var, sc, hash); | |
854 | if (m == NULL) | |
855 | m = add_member (cls, name, var, sc, hash); | |
856 | } | |
857 | ||
858 | if (!cls->sfilename) | |
859 | cls->sfilename = filename; | |
860 | ||
fd72561d | 861 | if (!FILENAME_EQ (cls->sfilename, filename)) |
be0dbdab GM |
862 | m->def_filename = filename; |
863 | ||
864 | m->def_regexp = regexp; | |
865 | m->def_pos = pos; | |
866 | m->flags |= flags; | |
867 | ||
868 | info_where = P_DEFN; | |
869 | info_cls = cls; | |
870 | info_member = m; | |
871 | } | |
872 | ||
873 | ||
874 | /* Add a symbol for a define named NAME to the symbol table. | |
875 | REGEXP is a regular expression matching the define in the source, | |
876 | if it is non-null. POS is the position in the file. */ | |
877 | ||
878 | void | |
879 | add_define (name, regexp, pos) | |
880 | char *name, *regexp; | |
881 | int pos; | |
882 | { | |
883 | add_global_defn (name, regexp, pos, 0, 1, SC_FRIEND, F_DEFINE); | |
884 | add_global_decl (name, regexp, pos, 0, 1, SC_FRIEND, F_DEFINE); | |
885 | } | |
886 | ||
887 | ||
888 | /* Add information for the global definition of NAME. | |
889 | REGEXP is a regexp matching the declaration, if non-null. POS is | |
890 | the position in the source where the declaration is found. HASH is | |
891 | a hash code for the parameter list of the member, if it's a | |
892 | function. VAR non-zero means member is a variable or type. SC | |
893 | specifies the type of member (instance member, static, ...). VIS | |
894 | is the member's visibility (public, protected, private). FLAGS is | |
895 | a bit set giving additional information about the member (see the | |
896 | F_* defines). */ | |
897 | ||
898 | void | |
899 | add_global_defn (name, regexp, pos, hash, var, sc, flags) | |
900 | char *name, *regexp; | |
901 | int pos; | |
902 | unsigned hash; | |
903 | int var; | |
904 | int sc; | |
905 | int flags; | |
906 | { | |
907 | int i; | |
908 | struct sym *sym; | |
909 | ||
910 | /* Try to find out for which classes a function is a friend, and add | |
911 | what we know about it to them. */ | |
912 | if (!var) | |
913 | for (i = 0; i < TABLE_SIZE; ++i) | |
914 | for (sym = class_table[i]; sym; sym = sym->next) | |
915 | if (sym != global_symbols && sym->friends) | |
916 | if (find_member (sym, name, 0, SC_FRIEND, hash)) | |
917 | add_member_defn (sym, name, regexp, pos, hash, 0, | |
918 | SC_FRIEND, flags); | |
919 | ||
920 | /* Add to global symbols. */ | |
921 | add_member_defn (global_symbols, name, regexp, pos, hash, var, sc, flags); | |
922 | } | |
923 | ||
924 | ||
925 | /* Add information for the global declaration of NAME. | |
926 | REGEXP is a regexp matching the declaration, if non-null. POS is | |
927 | the position in the source where the declaration is found. HASH is | |
928 | a hash code for the parameter list of the member, if it's a | |
929 | function. VAR non-zero means member is a variable or type. SC | |
930 | specifies the type of member (instance member, static, ...). VIS | |
931 | is the member's visibility (public, protected, private). FLAGS is | |
932 | a bit set giving additional information about the member (see the | |
933 | F_* defines). */ | |
934 | ||
69bfc389 | 935 | void |
be0dbdab GM |
936 | add_global_decl (name, regexp, pos, hash, var, sc, flags) |
937 | char *name, *regexp; | |
938 | int pos; | |
939 | unsigned hash; | |
940 | int var; | |
941 | int sc; | |
942 | int flags; | |
943 | { | |
944 | /* Add declaration only if not already declared. Header files must | |
945 | be processed before source files for this to have the right effect. | |
946 | I do not want to handle implicit declarations at the moment. */ | |
947 | struct member *m; | |
948 | struct member *found; | |
949 | ||
950 | m = found = find_member (global_symbols, name, var, sc, hash); | |
951 | if (m == NULL) | |
952 | m = add_member (global_symbols, name, var, sc, hash); | |
953 | ||
954 | /* Definition already seen => probably last declaration implicit. | |
955 | Override. This means that declarations must always be added to | |
956 | the symbol table before definitions. */ | |
957 | if (!found) | |
958 | { | |
959 | if (!global_symbols->filename | |
fd72561d | 960 | || !FILENAME_EQ (global_symbols->filename, filename)) |
be0dbdab GM |
961 | m->filename = filename; |
962 | ||
963 | m->regexp = regexp; | |
964 | m->pos = pos; | |
965 | m->vis = V_PUBLIC; | |
966 | m->flags = flags; | |
967 | ||
968 | info_where = P_DECL; | |
969 | info_cls = global_symbols; | |
970 | info_member = m; | |
971 | } | |
972 | } | |
973 | ||
974 | ||
975 | /* Add a symbol for member NAME to class CLS. | |
976 | VAR non-zero means it's a variable. SC specifies the kind of | |
977 | member. HASH is a hash code for the parameter types of a function. | |
978 | Value is a pointer to the member's structure. */ | |
979 | ||
980 | struct member * | |
981 | add_member (cls, name, var, sc, hash) | |
982 | struct sym *cls; | |
983 | char *name; | |
984 | int var; | |
985 | int sc; | |
986 | unsigned hash; | |
987 | { | |
c43a1ff6 | 988 | struct member *m = (struct member *) xmalloc (sizeof *m + strlen (name)); |
be0dbdab GM |
989 | struct member **list; |
990 | struct member *p; | |
991 | struct member *prev; | |
992 | unsigned name_hash = 0; | |
993 | int i; | |
994 | char *s; | |
995 | ||
996 | strcpy (m->name, name); | |
997 | m->param_hash = hash; | |
998 | ||
999 | m->vis = 0; | |
1000 | m->flags = 0; | |
1001 | m->regexp = NULL; | |
1002 | m->filename = NULL; | |
1003 | m->pos = 0; | |
1004 | m->def_regexp = NULL; | |
1005 | m->def_filename = NULL; | |
1006 | m->def_pos = 0; | |
1007 | ||
1008 | assert (cls != NULL); | |
1009 | ||
1010 | switch (sc) | |
1011 | { | |
1012 | case SC_FRIEND: | |
1013 | list = &cls->friends; | |
1014 | break; | |
69bfc389 | 1015 | |
be0dbdab GM |
1016 | case SC_TYPE: |
1017 | list = &cls->types; | |
1018 | break; | |
69bfc389 | 1019 | |
be0dbdab GM |
1020 | case SC_STATIC: |
1021 | list = var ? &cls->static_vars : &cls->static_fns; | |
1022 | break; | |
69bfc389 | 1023 | |
be0dbdab GM |
1024 | default: |
1025 | list = var ? &cls->vars : &cls->fns; | |
1026 | break; | |
1027 | } | |
1028 | ||
1029 | for (s = name; *s; ++s) | |
1030 | name_hash = (name_hash << 1) ^ *s; | |
1031 | i = name_hash % TABLE_SIZE; | |
1032 | m->anext = member_table[i]; | |
1033 | member_table[i] = m; | |
1034 | m->list = list; | |
1035 | ||
1036 | /* Keep the member list sorted. It's cheaper to do it here than to | |
1037 | sort them in Lisp. */ | |
1038 | for (prev = NULL, p = *list; | |
1039 | p && strcmp (name, p->name) > 0; | |
1040 | prev = p, p = p->next) | |
1041 | ; | |
1042 | ||
1043 | m->next = p; | |
1044 | if (prev) | |
1045 | prev->next = m; | |
1046 | else | |
1047 | *list = m; | |
1048 | return m; | |
1049 | } | |
1050 | ||
1051 | ||
1052 | /* Given the root R of a class tree, step through all subclasses | |
1053 | recursively, marking functions as virtual that are declared virtual | |
1054 | in base classes. */ | |
1055 | ||
1056 | void | |
1057 | mark_virtual (r) | |
1058 | struct sym *r; | |
1059 | { | |
1060 | struct link *p; | |
1061 | struct member *m, *m2; | |
1062 | ||
1063 | for (p = r->subs; p; p = p->next) | |
1064 | { | |
1065 | for (m = r->fns; m; m = m->next) | |
1066 | if (HAS_FLAG (m->flags, F_VIRTUAL)) | |
1067 | { | |
1068 | for (m2 = p->sym->fns; m2; m2 = m2->next) | |
1069 | if (m->param_hash == m2->param_hash && streq (m->name, m2->name)) | |
1070 | SET_FLAG (m2->flags, F_VIRTUAL); | |
1071 | } | |
1072 | ||
1073 | mark_virtual (p->sym); | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | ||
1078 | /* For all roots of the class tree, mark functions as virtual that | |
1079 | are virtual because of a virtual declaration in a base class. */ | |
1080 | ||
1081 | void | |
1082 | mark_inherited_virtual () | |
1083 | { | |
1084 | struct sym *r; | |
1085 | int i; | |
1086 | ||
1087 | for (i = 0; i < TABLE_SIZE; ++i) | |
1088 | for (r = class_table[i]; r; r = r->next) | |
1089 | if (r->supers == NULL) | |
1090 | mark_virtual (r); | |
1091 | } | |
1092 | ||
1093 | ||
1094 | /* Create and return a symbol for a namespace with name NAME. */ | |
1095 | ||
1096 | struct sym * | |
407094f4 | 1097 | make_namespace (name, context) |
be0dbdab | 1098 | char *name; |
407094f4 | 1099 | struct sym *context; |
be0dbdab | 1100 | { |
c43a1ff6 | 1101 | struct sym *s = (struct sym *) xmalloc (sizeof *s + strlen (name)); |
be0dbdab GM |
1102 | bzero (s, sizeof *s); |
1103 | strcpy (s->name, name); | |
1104 | s->next = all_namespaces; | |
407094f4 | 1105 | s->namesp = context; |
be0dbdab GM |
1106 | all_namespaces = s; |
1107 | return s; | |
1108 | } | |
1109 | ||
1110 | ||
407094f4 | 1111 | /* Find the symbol for namespace NAME. If not found, retrun NULL */ |
be0dbdab GM |
1112 | |
1113 | struct sym * | |
407094f4 | 1114 | check_namespace (name, context) |
be0dbdab | 1115 | char *name; |
407094f4 | 1116 | struct sym *context; |
be0dbdab | 1117 | { |
407094f4 | 1118 | struct sym *p = NULL; |
69bfc389 | 1119 | |
be0dbdab GM |
1120 | for (p = all_namespaces; p; p = p->next) |
1121 | { | |
407094f4 | 1122 | if (streq (p->name, name) && (p->namesp == context)) |
be0dbdab GM |
1123 | break; |
1124 | } | |
407094f4 GM |
1125 | |
1126 | return p; | |
be0dbdab GM |
1127 | } |
1128 | ||
407094f4 GM |
1129 | /* Find the symbol for namespace NAME. If not found, add a new symbol |
1130 | for NAME to all_namespaces. */ | |
1131 | ||
1132 | struct sym * | |
1133 | find_namespace (name, context) | |
1134 | char *name; | |
1135 | struct sym *context; | |
1136 | { | |
1137 | struct sym *p = check_namespace (name, context); | |
1138 | ||
be0dbdab | 1139 | if (p == NULL) |
407094f4 | 1140 | p = make_namespace (name, context); |
be0dbdab GM |
1141 | |
1142 | return p; | |
1143 | } | |
69bfc389 | 1144 | |
be0dbdab | 1145 | |
407094f4 GM |
1146 | /* Find namespace alias with name NAME. If not found return NULL. */ |
1147 | ||
1148 | struct link * | |
1149 | check_namespace_alias (name) | |
1150 | char *name; | |
1151 | { | |
1152 | struct link *p = NULL; | |
1153 | struct alias *al; | |
1154 | unsigned h; | |
1155 | char *s; | |
1156 | ||
1157 | for (s = name, h = 0; *s; ++s) | |
1158 | h = (h << 1) ^ *s; | |
1159 | h %= TABLE_SIZE; | |
1160 | ||
1161 | for (al = namespace_alias_table[h]; al; al = al->next) | |
1162 | if (streq (name, al->name) && (al->namesp == current_namespace)) | |
1163 | { | |
1164 | p = al->aliasee; | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | return p; | |
1169 | } | |
1170 | ||
1171 | /* Register the name NEW_NAME as an alias for namespace list OLD_NAME. */ | |
be0dbdab GM |
1172 | |
1173 | void | |
1174 | register_namespace_alias (new_name, old_name) | |
407094f4 GM |
1175 | char *new_name; |
1176 | struct link *old_name; | |
be0dbdab | 1177 | { |
407094f4 GM |
1178 | unsigned h; |
1179 | char *s; | |
be0dbdab GM |
1180 | struct alias *al; |
1181 | ||
407094f4 GM |
1182 | for (s = new_name, h = 0; *s; ++s) |
1183 | h = (h << 1) ^ *s; | |
1184 | h %= TABLE_SIZE; | |
1185 | ||
1186 | ||
1187 | /* Is it already in the table of aliases? */ | |
1188 | for (al = namespace_alias_table[h]; al; al = al->next) | |
1189 | if (streq (new_name, al->name) && (al->namesp == current_namespace)) | |
be0dbdab GM |
1190 | return; |
1191 | ||
c43a1ff6 | 1192 | al = (struct alias *) xmalloc (sizeof *al + strlen (new_name)); |
be0dbdab | 1193 | strcpy (al->name, new_name); |
407094f4 GM |
1194 | al->next = namespace_alias_table[h]; |
1195 | al->namesp = current_namespace; | |
1196 | al->aliasee = old_name; | |
1197 | namespace_alias_table[h] = al; | |
be0dbdab GM |
1198 | } |
1199 | ||
1200 | ||
1201 | /* Enter namespace with name NAME. */ | |
1202 | ||
1203 | void | |
1204 | enter_namespace (name) | |
1205 | char *name; | |
1206 | { | |
407094f4 | 1207 | struct sym *p = find_namespace (name, current_namespace); |
be0dbdab GM |
1208 | |
1209 | if (namespace_sp == namespace_stack_size) | |
1210 | { | |
1211 | int size = max (10, 2 * namespace_stack_size); | |
04dae60b GM |
1212 | namespace_stack |
1213 | = (struct sym **) xrealloc ((void *)namespace_stack, | |
1214 | size * sizeof *namespace_stack); | |
be0dbdab GM |
1215 | namespace_stack_size = size; |
1216 | } | |
69bfc389 | 1217 | |
be0dbdab GM |
1218 | namespace_stack[namespace_sp++] = current_namespace; |
1219 | current_namespace = p; | |
1220 | } | |
1221 | ||
1222 | ||
1223 | /* Leave the current namespace. */ | |
1224 | ||
1225 | void | |
1226 | leave_namespace () | |
1227 | { | |
1228 | assert (namespace_sp > 0); | |
1229 | current_namespace = namespace_stack[--namespace_sp]; | |
1230 | } | |
1231 | ||
1232 | ||
1233 | \f | |
1234 | /*********************************************************************** | |
1235 | Writing the Output File | |
1236 | ***********************************************************************/ | |
1237 | ||
1238 | /* Write string S to the output file FP in a Lisp-readable form. | |
1239 | If S is null, write out `()'. */ | |
1240 | ||
1241 | #define PUTSTR(s, fp) \ | |
1242 | do { \ | |
1243 | if (!s) \ | |
1244 | { \ | |
1245 | putc ('(', fp); \ | |
1246 | putc (')', fp); \ | |
1247 | putc (' ', fp); \ | |
1248 | } \ | |
1249 | else \ | |
1250 | { \ | |
1251 | putc ('"', fp); \ | |
1252 | fputs (s, fp); \ | |
1253 | putc ('"', fp); \ | |
1254 | putc (' ', fp); \ | |
1255 | } \ | |
1256 | } while (0) | |
1257 | ||
1258 | /* A dynamically allocated buffer for constructing a scope name. */ | |
1259 | ||
1260 | char *scope_buffer; | |
1261 | int scope_buffer_size; | |
1262 | int scope_buffer_len; | |
1263 | ||
1264 | ||
1265 | /* Make sure scope_buffer has enough room to add LEN chars to it. */ | |
1266 | ||
1267 | void | |
1268 | ensure_scope_buffer_room (len) | |
1269 | int len; | |
1270 | { | |
1271 | if (scope_buffer_len + len >= scope_buffer_size) | |
1272 | { | |
1273 | int new_size = max (2 * scope_buffer_size, scope_buffer_len + len); | |
f94b82d9 | 1274 | scope_buffer = (char *) xrealloc (scope_buffer, new_size); |
be0dbdab GM |
1275 | scope_buffer_size = new_size; |
1276 | } | |
1277 | } | |
1278 | ||
1279 | ||
1280 | /* Recursively add the scope names of symbol P and the scopes of its | |
1281 | namespaces to scope_buffer. Value is a pointer to the complete | |
1282 | scope name constructed. */ | |
1283 | ||
1284 | char * | |
1285 | sym_scope_1 (p) | |
1286 | struct sym *p; | |
1287 | { | |
1288 | int len; | |
69bfc389 | 1289 | |
be0dbdab GM |
1290 | if (p->namesp) |
1291 | sym_scope_1 (p->namesp); | |
1292 | ||
1293 | if (*scope_buffer) | |
1294 | { | |
1295 | ensure_scope_buffer_room (3); | |
1296 | strcat (scope_buffer, "::"); | |
1297 | scope_buffer_len += 2; | |
1298 | } | |
1299 | ||
1300 | len = strlen (p->name); | |
1301 | ensure_scope_buffer_room (len + 1); | |
1302 | strcat (scope_buffer, p->name); | |
1303 | scope_buffer_len += len; | |
69bfc389 | 1304 | |
be0dbdab GM |
1305 | if (HAS_FLAG (p->flags, F_TEMPLATE)) |
1306 | { | |
1307 | ensure_scope_buffer_room (3); | |
1308 | strcat (scope_buffer, "<>"); | |
1309 | scope_buffer_len += 2; | |
1310 | } | |
69bfc389 | 1311 | |
be0dbdab GM |
1312 | return scope_buffer; |
1313 | } | |
1314 | ||
1315 | ||
1316 | /* Return the scope of symbol P in printed representation, i.e. | |
1317 | as it would appear in a C*+ source file. */ | |
1318 | ||
1319 | char * | |
1320 | sym_scope (p) | |
1321 | struct sym *p; | |
1322 | { | |
1323 | if (!scope_buffer) | |
1324 | { | |
1325 | scope_buffer_size = 1024; | |
c43a1ff6 | 1326 | scope_buffer = (char *) xmalloc (scope_buffer_size); |
be0dbdab | 1327 | } |
69bfc389 | 1328 | |
be0dbdab GM |
1329 | *scope_buffer = '\0'; |
1330 | scope_buffer_len = 0; | |
69bfc389 | 1331 | |
be0dbdab GM |
1332 | if (p->namesp) |
1333 | sym_scope_1 (p->namesp); | |
1334 | ||
1335 | return scope_buffer; | |
1336 | } | |
1337 | ||
1338 | ||
1339 | /* Dump the list of members M to file FP. Value is the length of the | |
1340 | list. */ | |
1341 | ||
1342 | int | |
1343 | dump_members (fp, m) | |
1344 | FILE *fp; | |
1345 | struct member *m; | |
1346 | { | |
1347 | int n; | |
1348 | ||
1349 | putc ('(', fp); | |
1350 | ||
1351 | for (n = 0; m; m = m->next, ++n) | |
1352 | { | |
1353 | fputs (MEMBER_STRUCT, fp); | |
1354 | PUTSTR (m->name, fp); | |
1355 | PUTSTR (NULL, fp); /* FIXME? scope for globals */ | |
1356 | fprintf (fp, "%u ", (unsigned) m->flags); | |
1357 | PUTSTR (m->filename, fp); | |
1358 | PUTSTR (m->regexp, fp); | |
1359 | fprintf (fp, "%u ", (unsigned) m->pos); | |
1360 | fprintf (fp, "%u ", (unsigned) m->vis); | |
1361 | putc (' ', fp); | |
1362 | PUTSTR (m->def_filename, fp); | |
1363 | PUTSTR (m->def_regexp, fp); | |
1364 | fprintf (fp, "%u", (unsigned) m->def_pos); | |
1365 | putc (']', fp); | |
1366 | putc ('\n', fp); | |
1367 | } | |
1368 | ||
1369 | putc (')', fp); | |
1370 | putc ('\n', fp); | |
1371 | return n; | |
1372 | } | |
1373 | ||
1374 | ||
1375 | /* Dump class ROOT to stream FP. */ | |
1376 | ||
1377 | void | |
1378 | dump_sym (fp, root) | |
1379 | FILE *fp; | |
1380 | struct sym *root; | |
1381 | { | |
1382 | fputs (CLASS_STRUCT, fp); | |
1383 | PUTSTR (root->name, fp); | |
69bfc389 | 1384 | |
be0dbdab GM |
1385 | /* Print scope, if any. */ |
1386 | if (root->namesp) | |
1387 | PUTSTR (sym_scope (root), fp); | |
1388 | else | |
1389 | PUTSTR (NULL, fp); | |
69bfc389 | 1390 | |
be0dbdab GM |
1391 | /* Print flags. */ |
1392 | fprintf (fp, "%u", root->flags); | |
1393 | PUTSTR (root->filename, fp); | |
1394 | PUTSTR (root->regexp, fp); | |
1395 | fprintf (fp, "%u", (unsigned) root->pos); | |
1396 | PUTSTR (root->sfilename, fp); | |
1397 | putc (']', fp); | |
1398 | putc ('\n', fp); | |
1399 | } | |
1400 | ||
1401 | ||
1402 | /* Dump class ROOT and its subclasses to file FP. Value is the | |
1403 | number of classes written. */ | |
1404 | ||
1405 | int | |
1406 | dump_tree (fp, root) | |
1407 | FILE *fp; | |
1408 | struct sym *root; | |
1409 | { | |
1410 | struct link *lk; | |
1411 | unsigned n = 0; | |
1412 | ||
1413 | dump_sym (fp, root); | |
1414 | ||
1415 | if (f_verbose) | |
1416 | { | |
1417 | putchar ('+'); | |
1418 | fflush (stdout); | |
1419 | } | |
1420 | ||
1421 | putc ('(', fp); | |
1422 | ||
1423 | for (lk = root->subs; lk; lk = lk->next) | |
1424 | { | |
1425 | fputs (TREE_STRUCT, fp); | |
1426 | n += dump_tree (fp, lk->sym); | |
1427 | putc (']', fp); | |
1428 | } | |
1429 | ||
1430 | putc (')', fp); | |
1431 | ||
1432 | dump_members (fp, root->vars); | |
1433 | n += dump_members (fp, root->fns); | |
1434 | dump_members (fp, root->static_vars); | |
1435 | n += dump_members (fp, root->static_fns); | |
1436 | n += dump_members (fp, root->friends); | |
1437 | dump_members (fp, root->types); | |
1438 | ||
1439 | /* Superclasses. */ | |
1440 | putc ('(', fp); | |
1441 | putc (')', fp); | |
1442 | ||
1443 | /* Mark slot. */ | |
1444 | putc ('(', fp); | |
1445 | putc (')', fp); | |
1446 | ||
1447 | putc ('\n', fp); | |
1448 | return n; | |
1449 | } | |
1450 | ||
1451 | ||
1452 | /* Dump the entire class tree to file FP. */ | |
1453 | ||
1454 | void | |
1455 | dump_roots (fp) | |
1456 | FILE *fp; | |
1457 | { | |
1458 | int i, n = 0; | |
1459 | struct sym *r; | |
1460 | ||
1461 | /* Output file header containing version string, command line | |
1462 | options etc. */ | |
1463 | if (!f_append) | |
1464 | { | |
1465 | fputs (TREE_HEADER_STRUCT, fp); | |
1466 | PUTSTR (EBROWSE_FILE_VERSION, fp); | |
1467 | ||
1468 | putc ('\"', fp); | |
1469 | if (!f_structs) | |
1470 | fputs (" -s", fp); | |
1471 | if (f_regexps) | |
1472 | fputs (" -x", fp); | |
1473 | putc ('\"', fp); | |
1474 | fputs (" ()", fp); | |
1475 | fputs (" ()", fp); | |
1476 | putc (']', fp); | |
1477 | } | |
1478 | ||
1479 | /* Mark functions as virtual that are so because of functions | |
1480 | declared virtual in base classes. */ | |
1481 | mark_inherited_virtual (); | |
1482 | ||
1483 | /* Dump the roots of the graph. */ | |
1484 | for (i = 0; i < TABLE_SIZE; ++i) | |
1485 | for (r = class_table[i]; r; r = r->next) | |
1486 | if (!r->supers) | |
1487 | { | |
1488 | fputs (TREE_STRUCT, fp); | |
1489 | n += dump_tree (fp, r); | |
1490 | putc (']', fp); | |
1491 | } | |
1492 | ||
1493 | if (f_verbose) | |
1494 | putchar ('\n'); | |
1495 | } | |
1496 | ||
1497 | ||
1498 | \f | |
1499 | /*********************************************************************** | |
1500 | Scanner | |
1501 | ***********************************************************************/ | |
1502 | ||
1503 | #ifdef DEBUG | |
1504 | #define INCREMENT_LINENO \ | |
1505 | do { \ | |
1506 | if (f_very_verbose) \ | |
1507 | { \ | |
1508 | ++yyline; \ | |
1509 | printf ("%d:\n", yyline); \ | |
1510 | } \ | |
1511 | else \ | |
1512 | ++yyline; \ | |
1513 | } while (0) | |
1514 | #else | |
1515 | #define INCREMENT_LINENO ++yyline | |
1516 | #endif | |
1517 | ||
1518 | /* Define two macros for accessing the input buffer (current input | |
1519 | file). GET(C) sets C to the next input character and advances the | |
1520 | input pointer. UNGET retracts the input pointer. */ | |
1521 | ||
1522 | #define GET(C) ((C) = *in++) | |
1523 | #define UNGET() (--in) | |
1524 | ||
1525 | ||
1526 | /* Process a preprocessor line. Value is the next character from the | |
1527 | input buffer not consumed. */ | |
1528 | ||
1529 | int | |
1530 | process_pp_line () | |
1531 | { | |
d65b0571 | 1532 | int in_comment = 0, in_string = 0; |
be0dbdab GM |
1533 | int c; |
1534 | char *p = yytext; | |
1535 | ||
1536 | /* Skip over white space. The `#' has been consumed already. */ | |
1537 | while (WHITEP (GET (c))) | |
1538 | ; | |
1539 | ||
1540 | /* Read the preprocessor command (if any). */ | |
1541 | while (IDENTP (c)) | |
1542 | { | |
1543 | *p++ = c; | |
1544 | GET (c); | |
1545 | } | |
1546 | ||
1547 | /* Is it a `define'? */ | |
1548 | *p = '\0'; | |
1549 | ||
1550 | if (*yytext && streq (yytext, "define")) | |
1551 | { | |
1552 | p = yytext; | |
1553 | while (WHITEP (c)) | |
1554 | GET (c); | |
1555 | while (IDENTP (c)) | |
1556 | { | |
1557 | *p++ = c; | |
1558 | GET (c); | |
1559 | } | |
1560 | ||
1561 | *p = '\0'; | |
1562 | ||
1563 | if (*yytext) | |
1564 | { | |
1565 | char *regexp = matching_regexp (); | |
1566 | int pos = BUFFER_POS (); | |
1567 | add_define (yytext, regexp, pos); | |
1568 | } | |
1569 | } | |
69bfc389 | 1570 | |
d65b0571 | 1571 | while (c && (c != '\n' || in_comment || in_string)) |
be0dbdab GM |
1572 | { |
1573 | if (c == '\\') | |
1574 | GET (c); | |
1575 | else if (c == '/' && !in_comment) | |
1576 | { | |
1577 | if (GET (c) == '*') | |
1578 | in_comment = 1; | |
1579 | } | |
1580 | else if (c == '*' && in_comment) | |
1581 | { | |
1582 | if (GET (c) == '/') | |
1583 | in_comment = 0; | |
1584 | } | |
d65b0571 GM |
1585 | else if (c == '"') |
1586 | in_string = !in_string; | |
69bfc389 | 1587 | |
be0dbdab GM |
1588 | if (c == '\n') |
1589 | INCREMENT_LINENO; | |
1590 | ||
1591 | GET (c); | |
1592 | } | |
d65b0571 | 1593 | |
be0dbdab GM |
1594 | return c; |
1595 | } | |
1596 | ||
1597 | ||
1598 | /* Value is the next token from the input buffer. */ | |
1599 | ||
1600 | int | |
1601 | yylex () | |
1602 | { | |
1603 | int c; | |
1604 | char end_char; | |
1605 | char *p; | |
1606 | ||
1607 | for (;;) | |
1608 | { | |
1609 | while (WHITEP (GET (c))) | |
1610 | ; | |
1611 | ||
1612 | switch (c) | |
1613 | { | |
1614 | case '\n': | |
1615 | INCREMENT_LINENO; | |
1616 | break; | |
1617 | ||
1618 | case '\r': | |
1619 | break; | |
1620 | ||
1621 | case 0: | |
1622 | /* End of file. */ | |
1623 | return YYEOF; | |
1624 | ||
1625 | case '\\': | |
1626 | GET (c); | |
1627 | break; | |
1628 | ||
1629 | case '"': | |
1630 | case '\'': | |
1631 | /* String and character constants. */ | |
1632 | end_char = c; | |
1633 | string_start = in; | |
1634 | while (GET (c) && c != end_char) | |
1635 | { | |
1636 | switch (c) | |
1637 | { | |
1638 | case '\\': | |
1639 | /* Escape sequences. */ | |
1640 | if (!GET (c)) | |
1641 | { | |
1642 | if (end_char == '\'') | |
e6a0814f | 1643 | yyerror ("EOF in character constant", NULL); |
be0dbdab | 1644 | else |
e6a0814f | 1645 | yyerror ("EOF in string constant", NULL); |
be0dbdab GM |
1646 | goto end_string; |
1647 | } | |
1648 | else switch (c) | |
1649 | { | |
1650 | case '\n': | |
d65b0571 | 1651 | INCREMENT_LINENO; |
be0dbdab GM |
1652 | case 'a': |
1653 | case 'b': | |
1654 | case 'f': | |
1655 | case 'n': | |
1656 | case 'r': | |
1657 | case 't': | |
1658 | case 'v': | |
1659 | break; | |
1660 | ||
1661 | case 'x': | |
1662 | { | |
1663 | /* Hexadecimal escape sequence. */ | |
1664 | int i; | |
1665 | for (i = 0; i < 2; ++i) | |
1666 | { | |
1667 | GET (c); | |
1668 | ||
1669 | if (c >= '0' && c <= '7') | |
1670 | ; | |
1671 | else if (c >= 'a' && c <= 'f') | |
1672 | ; | |
1673 | else if (c >= 'A' && c <= 'F') | |
1674 | ; | |
1675 | else | |
1676 | { | |
1677 | UNGET (); | |
1678 | break; | |
1679 | } | |
1680 | } | |
1681 | } | |
1682 | break; | |
1683 | ||
1684 | case '0': | |
1685 | { | |
1686 | /* Octal escape sequence. */ | |
1687 | int i; | |
1688 | for (i = 0; i < 3; ++i) | |
1689 | { | |
1690 | GET (c); | |
1691 | ||
1692 | if (c >= '0' && c <= '7') | |
1693 | ; | |
1694 | else | |
1695 | { | |
1696 | UNGET (); | |
1697 | break; | |
1698 | } | |
1699 | } | |
1700 | } | |
1701 | break; | |
1702 | ||
1703 | default: | |
1704 | break; | |
1705 | } | |
1706 | break; | |
1707 | ||
1708 | case '\n': | |
1709 | if (end_char == '\'') | |
e6a0814f | 1710 | yyerror ("newline in character constant", NULL); |
be0dbdab | 1711 | else |
e6a0814f | 1712 | yyerror ("newline in string constant", NULL); |
be0dbdab | 1713 | INCREMENT_LINENO; |
d65b0571 | 1714 | break; |
be0dbdab GM |
1715 | |
1716 | default: | |
1717 | break; | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | end_string: | |
1722 | return end_char == '\'' ? CCHAR : CSTRING; | |
1723 | ||
1724 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': | |
1725 | case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': | |
1726 | case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u': | |
1727 | case 'v': case 'w': case 'x': case 'y': case 'z': | |
1728 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': | |
1729 | case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': | |
1730 | case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U': | |
1731 | case 'V': case 'W': case 'X': case 'Y': case 'Z': case '_': | |
1732 | { | |
1733 | /* Identifier and keywords. */ | |
1734 | unsigned hash; | |
1735 | struct kw *k; | |
1736 | ||
1737 | p = yytext; | |
1738 | *p++ = hash = c; | |
1739 | ||
1740 | while (IDENTP (GET (*p))) | |
1741 | { | |
1742 | hash = (hash << 1) ^ *p++; | |
1743 | if (p == yytext_end - 1) | |
1744 | { | |
1745 | int size = yytext_end - yytext; | |
c43a1ff6 | 1746 | yytext = (char *) xrealloc (yytext, 2 * size); |
be0dbdab GM |
1747 | yytext_end = yytext + 2 * size; |
1748 | p = yytext + size - 1; | |
1749 | } | |
1750 | } | |
1751 | ||
1752 | UNGET (); | |
1753 | *p = 0; | |
1754 | ||
1755 | for (k = keyword_table[hash % KEYWORD_TABLE_SIZE]; k; k = k->next) | |
1756 | if (streq (k->name, yytext)) | |
1757 | return k->tk; | |
1758 | ||
1759 | return IDENT; | |
1760 | } | |
1761 | ||
1762 | case '/': | |
1763 | /* C and C++ comments, '/' and '/='. */ | |
1764 | switch (GET (c)) | |
1765 | { | |
1766 | case '*': | |
1767 | while (GET (c)) | |
1768 | { | |
1769 | switch (c) | |
1770 | { | |
1771 | case '*': | |
1772 | if (GET (c) == '/') | |
1773 | goto comment_end; | |
1774 | UNGET (); | |
1775 | break; | |
1776 | case '\\': | |
1777 | GET (c); | |
1778 | break; | |
1779 | case '\n': | |
1780 | INCREMENT_LINENO; | |
1781 | break; | |
1782 | } | |
1783 | } | |
1784 | comment_end:; | |
1785 | break; | |
1786 | ||
1787 | case '=': | |
1788 | return DIVASGN; | |
1789 | ||
1790 | case '/': | |
1791 | while (GET (c) && c != '\n') | |
1792 | ; | |
1793 | INCREMENT_LINENO; | |
1794 | break; | |
1795 | ||
1796 | default: | |
1797 | UNGET (); | |
1798 | return '/'; | |
1799 | } | |
1800 | break; | |
1801 | ||
1802 | case '+': | |
1803 | if (GET (c) == '+') | |
1804 | return INC; | |
1805 | else if (c == '=') | |
1806 | return ADDASGN; | |
1807 | UNGET (); | |
1808 | return '+'; | |
1809 | ||
1810 | case '-': | |
1811 | switch (GET (c)) | |
1812 | { | |
1813 | case '-': | |
1814 | return DEC; | |
1815 | case '>': | |
1816 | if (GET (c) == '*') | |
1817 | return ARROWSTAR; | |
1818 | UNGET (); | |
1819 | return ARROW; | |
1820 | case '=': | |
1821 | return SUBASGN; | |
1822 | } | |
1823 | UNGET (); | |
1824 | return '-'; | |
1825 | ||
1826 | case '*': | |
1827 | if (GET (c) == '=') | |
1828 | return MULASGN; | |
1829 | UNGET (); | |
1830 | return '*'; | |
1831 | ||
1832 | case '%': | |
1833 | if (GET (c) == '=') | |
1834 | return MODASGN; | |
1835 | UNGET (); | |
1836 | return '%'; | |
1837 | ||
1838 | case '|': | |
1839 | if (GET (c) == '|') | |
1840 | return LOR; | |
1841 | else if (c == '=') | |
1842 | return ORASGN; | |
1843 | UNGET (); | |
1844 | return '|'; | |
1845 | ||
1846 | case '&': | |
1847 | if (GET (c) == '&') | |
1848 | return LAND; | |
1849 | else if (c == '=') | |
1850 | return ANDASGN; | |
1851 | UNGET (); | |
1852 | return '&'; | |
1853 | ||
1854 | case '^': | |
1855 | if (GET (c) == '=') | |
1856 | return XORASGN; | |
1857 | UNGET (); | |
1858 | return '^'; | |
1859 | ||
1860 | case '.': | |
1861 | if (GET (c) == '*') | |
1862 | return POINTSTAR; | |
1863 | else if (c == '.') | |
1864 | { | |
1865 | if (GET (c) != '.') | |
e6a0814f | 1866 | yyerror ("invalid token '..' ('...' assumed)", NULL); |
be0dbdab GM |
1867 | UNGET (); |
1868 | return ELLIPSIS; | |
1869 | } | |
1870 | else if (!DIGITP (c)) | |
1871 | { | |
1872 | UNGET (); | |
1873 | return '.'; | |
1874 | } | |
1875 | goto mantissa; | |
1876 | ||
1877 | case ':': | |
1878 | if (GET (c) == ':') | |
1879 | return DCOLON; | |
1880 | UNGET (); | |
1881 | return ':'; | |
1882 | ||
1883 | case '=': | |
1884 | if (GET (c) == '=') | |
1885 | return EQ; | |
1886 | UNGET (); | |
1887 | return '='; | |
1888 | ||
1889 | case '!': | |
1890 | if (GET (c) == '=') | |
1891 | return NE; | |
1892 | UNGET (); | |
1893 | return '!'; | |
1894 | ||
1895 | case '<': | |
1896 | switch (GET (c)) | |
1897 | { | |
1898 | case '=': | |
1899 | return LE; | |
1900 | case '<': | |
1901 | if (GET (c) == '=') | |
1902 | return LSHIFTASGN; | |
1903 | UNGET (); | |
1904 | return LSHIFT; | |
1905 | } | |
1906 | UNGET (); | |
1907 | return '<'; | |
1908 | ||
1909 | case '>': | |
1910 | switch (GET (c)) | |
1911 | { | |
1912 | case '=': | |
1913 | return GE; | |
1914 | case '>': | |
1915 | if (GET (c) == '=') | |
1916 | return RSHIFTASGN; | |
1917 | UNGET (); | |
1918 | return RSHIFT; | |
1919 | } | |
1920 | UNGET (); | |
1921 | return '>'; | |
1922 | ||
1923 | case '#': | |
1924 | c = process_pp_line (); | |
1925 | if (c == 0) | |
1926 | return YYEOF; | |
1927 | break; | |
1928 | ||
1929 | case '(': case ')': case '[': case ']': case '{': case '}': | |
1930 | case ';': case ',': case '?': case '~': | |
1931 | return c; | |
1932 | ||
1933 | case '0': | |
1934 | yyival = 0; | |
1935 | ||
1936 | if (GET (c) == 'x' || c == 'X') | |
1937 | { | |
1938 | while (GET (c)) | |
1939 | { | |
1940 | if (DIGITP (c)) | |
1941 | yyival = yyival * 16 + c - '0'; | |
1942 | else if (c >= 'a' && c <= 'f') | |
1943 | yyival = yyival * 16 + c - 'a' + 10; | |
1944 | else if (c >= 'A' && c <= 'F') | |
1945 | yyival = yyival * 16 + c - 'A' + 10; | |
1946 | else | |
1947 | break; | |
1948 | } | |
1949 | ||
1950 | goto int_suffixes; | |
1951 | } | |
1952 | else if (c == '.') | |
1953 | goto mantissa; | |
1954 | ||
1955 | while (c >= '0' && c <= '7') | |
1956 | { | |
1957 | yyival = (yyival << 3) + c - '0'; | |
1958 | GET (c); | |
1959 | } | |
1960 | ||
1961 | int_suffixes: | |
1962 | /* Integer suffixes. */ | |
1963 | while (isalpha (c)) | |
1964 | GET (c); | |
1965 | UNGET (); | |
1966 | return CINT; | |
1967 | ||
1968 | case '1': case '2': case '3': case '4': case '5': case '6': | |
1969 | case '7': case '8': case '9': | |
1970 | /* Integer or floating constant, part before '.'. */ | |
1971 | yyival = c - '0'; | |
1972 | ||
1973 | while (GET (c) && DIGITP (c)) | |
1974 | yyival = 10 * yyival + c - '0'; | |
1975 | ||
1976 | if (c != '.') | |
1977 | goto int_suffixes; | |
1978 | ||
1979 | mantissa: | |
1980 | /* Digits following '.'. */ | |
1981 | while (DIGITP (c)) | |
1982 | GET (c); | |
1983 | ||
1984 | /* Optional exponent. */ | |
1985 | if (c == 'E' || c == 'e') | |
1986 | { | |
1987 | if (GET (c) == '-' || c == '+') | |
1988 | GET (c); | |
1989 | ||
1990 | while (DIGITP (c)) | |
1991 | GET (c); | |
1992 | } | |
1993 | ||
1994 | /* Optional type suffixes. */ | |
1995 | while (isalpha (c)) | |
1996 | GET (c); | |
1997 | UNGET (); | |
1998 | return CFLOAT; | |
1999 | ||
2000 | default: | |
2001 | break; | |
2002 | } | |
2003 | } | |
2004 | } | |
2005 | ||
2006 | ||
995d7689 GM |
2007 | /* Actually local to matching_regexp. These variables must be in |
2008 | global scope for the case that `static' get's defined away. */ | |
2009 | ||
2010 | static char *matching_regexp_buffer, *matching_regexp_end_buf; | |
2011 | ||
2012 | ||
be0dbdab GM |
2013 | /* Value is the string from the start of the line to the current |
2014 | position in the input buffer, or maybe a bit more if that string is | |
2015 | shorter than min_regexp. */ | |
2016 | ||
2017 | char * | |
2018 | matching_regexp () | |
2019 | { | |
2020 | char *p; | |
2021 | char *s; | |
2022 | char *t; | |
be0dbdab GM |
2023 | |
2024 | if (!f_regexps) | |
2025 | return NULL; | |
2026 | ||
995d7689 | 2027 | if (matching_regexp_buffer == NULL) |
be0dbdab | 2028 | { |
995d7689 GM |
2029 | matching_regexp_buffer = (char *) xmalloc (max_regexp); |
2030 | matching_regexp_end_buf = &matching_regexp_buffer[max_regexp] - 1; | |
be0dbdab GM |
2031 | } |
2032 | ||
2033 | /* Scan back to previous newline of buffer start. */ | |
2034 | for (p = in - 1; p > inbuffer && *p != '\n'; --p) | |
2035 | ; | |
2036 | ||
2037 | if (*p == '\n') | |
2038 | { | |
2039 | while (in - p < min_regexp && p > inbuffer) | |
2040 | { | |
2041 | /* Line probably not significant enough */ | |
2042 | for (--p; p >= inbuffer && *p != '\n'; --p) | |
2043 | ; | |
2044 | } | |
2045 | if (*p == '\n') | |
2046 | ++p; | |
2047 | } | |
2048 | ||
2049 | /* Copy from end to make sure significant portions are included. | |
2050 | This implies that in the browser a regular expressing of the form | |
2051 | `^.*{regexp}' has to be used. */ | |
995d7689 GM |
2052 | for (s = matching_regexp_end_buf - 1, t = in; |
2053 | s > matching_regexp_buffer && t > p;) | |
be0dbdab GM |
2054 | { |
2055 | *--s = *--t; | |
2056 | ||
cbdf8831 | 2057 | if (*s == '"' || *s == '\\') |
be0dbdab GM |
2058 | *--s = '\\'; |
2059 | } | |
2060 | ||
995d7689 | 2061 | *(matching_regexp_end_buf - 1) = '\0'; |
be0dbdab GM |
2062 | return xstrdup (s); |
2063 | } | |
2064 | ||
2065 | ||
2066 | /* Return a printable representation of token T. */ | |
2067 | ||
2068 | char * | |
2069 | token_string (t) | |
2070 | int t; | |
2071 | { | |
2072 | static char b[3]; | |
2073 | ||
2074 | switch (t) | |
2075 | { | |
2076 | case CSTRING: return "string constant"; | |
2077 | case CCHAR: return "char constant"; | |
2078 | case CINT: return "int constant"; | |
2079 | case CFLOAT: return "floating constant"; | |
2080 | case ELLIPSIS: return "..."; | |
2081 | case LSHIFTASGN: return "<<="; | |
2082 | case RSHIFTASGN: return ">>="; | |
2083 | case ARROWSTAR: return "->*"; | |
2084 | case IDENT: return "identifier"; | |
2085 | case DIVASGN: return "/="; | |
2086 | case INC: return "++"; | |
2087 | case ADDASGN: return "+="; | |
2088 | case DEC: return "--"; | |
2089 | case ARROW: return "->"; | |
2090 | case SUBASGN: return "-="; | |
2091 | case MULASGN: return "*="; | |
2092 | case MODASGN: return "%="; | |
2093 | case LOR: return "||"; | |
2094 | case ORASGN: return "|="; | |
2095 | case LAND: return "&&"; | |
2096 | case ANDASGN: return "&="; | |
2097 | case XORASGN: return "^="; | |
2098 | case POINTSTAR: return ".*"; | |
2099 | case DCOLON: return "::"; | |
2100 | case EQ: return "=="; | |
2101 | case NE: return "!="; | |
2102 | case LE: return "<="; | |
2103 | case LSHIFT: return "<<"; | |
2104 | case GE: return ">="; | |
2105 | case RSHIFT: return ">>"; | |
2106 | case ASM: return "asm"; | |
2107 | case AUTO: return "auto"; | |
2108 | case BREAK: return "break"; | |
2109 | case CASE: return "case"; | |
2110 | case CATCH: return "catch"; | |
2111 | case CHAR: return "char"; | |
2112 | case CLASS: return "class"; | |
2113 | case CONST: return "const"; | |
2114 | case CONTINUE: return "continue"; | |
2115 | case DEFAULT: return "default"; | |
2116 | case DELETE: return "delete"; | |
2117 | case DO: return "do"; | |
2118 | case DOUBLE: return "double"; | |
2119 | case ELSE: return "else"; | |
2120 | case ENUM: return "enum"; | |
2121 | case EXTERN: return "extern"; | |
2122 | case FLOAT: return "float"; | |
2123 | case FOR: return "for"; | |
2124 | case FRIEND: return "friend"; | |
2125 | case GOTO: return "goto"; | |
2126 | case IF: return "if"; | |
2127 | case T_INLINE: return "inline"; | |
2128 | case INT: return "int"; | |
2129 | case LONG: return "long"; | |
2130 | case NEW: return "new"; | |
2131 | case OPERATOR: return "operator"; | |
2132 | case PRIVATE: return "private"; | |
2133 | case PROTECTED: return "protected"; | |
2134 | case PUBLIC: return "public"; | |
2135 | case REGISTER: return "register"; | |
2136 | case RETURN: return "return"; | |
2137 | case SHORT: return "short"; | |
2138 | case SIGNED: return "signed"; | |
2139 | case SIZEOF: return "sizeof"; | |
2140 | case STATIC: return "static"; | |
2141 | case STRUCT: return "struct"; | |
2142 | case SWITCH: return "switch"; | |
2143 | case TEMPLATE: return "template"; | |
2144 | case THIS: return "this"; | |
2145 | case THROW: return "throw"; | |
2146 | case TRY: return "try"; | |
2147 | case TYPEDEF: return "typedef"; | |
2148 | case UNION: return "union"; | |
2149 | case UNSIGNED: return "unsigned"; | |
2150 | case VIRTUAL: return "virtual"; | |
2151 | case VOID: return "void"; | |
2152 | case VOLATILE: return "volatile"; | |
2153 | case WHILE: return "while"; | |
2faf048a GM |
2154 | case MUTABLE: return "mutable"; |
2155 | case BOOL: return "bool"; | |
2156 | case TRUE: return "true"; | |
2157 | case FALSE: return "false"; | |
2158 | case SIGNATURE: return "signature"; | |
2159 | case NAMESPACE: return "namespace"; | |
2160 | case EXPLICIT: return "explicit"; | |
2161 | case TYPENAME: return "typename"; | |
2162 | case CONST_CAST: return "const_cast"; | |
2163 | case DYNAMIC_CAST: return "dynamic_cast"; | |
2164 | case REINTERPRET_CAST: return "reinterpret_cast"; | |
2165 | case STATIC_CAST: return "static_cast"; | |
2166 | case TYPEID: return "typeid"; | |
2167 | case USING: return "using"; | |
2168 | case WCHAR: return "wchar_t"; | |
be0dbdab | 2169 | case YYEOF: return "EOF"; |
be0dbdab | 2170 | |
2faf048a GM |
2171 | default: |
2172 | if (t < 255) | |
2173 | { | |
2174 | b[0] = t; | |
2175 | b[1] = '\0'; | |
2176 | return b; | |
2177 | } | |
2178 | else | |
2179 | return "???"; | |
2180 | } | |
be0dbdab GM |
2181 | } |
2182 | ||
2183 | ||
2184 | /* Reinitialize the scanner for a new input file. */ | |
2185 | ||
2186 | void | |
2187 | re_init_scanner () | |
2188 | { | |
2189 | in = inbuffer; | |
2190 | yyline = 1; | |
69bfc389 | 2191 | |
be0dbdab GM |
2192 | if (yytext == NULL) |
2193 | { | |
2194 | int size = 256; | |
c43a1ff6 | 2195 | yytext = (char *) xmalloc (size * sizeof *yytext); |
be0dbdab GM |
2196 | yytext_end = yytext + size; |
2197 | } | |
2198 | } | |
2199 | ||
2200 | ||
2201 | /* Insert a keyword NAME with token value TK into the keyword hash | |
2202 | table. */ | |
2203 | ||
2204 | void | |
2205 | insert_keyword (name, tk) | |
2206 | char *name; | |
2207 | int tk; | |
2208 | { | |
2209 | char *s; | |
2210 | unsigned h = 0; | |
c43a1ff6 | 2211 | struct kw *k = (struct kw *) xmalloc (sizeof *k); |
be0dbdab GM |
2212 | |
2213 | for (s = name; *s; ++s) | |
2214 | h = (h << 1) ^ *s; | |
2215 | ||
2216 | h %= KEYWORD_TABLE_SIZE; | |
2217 | k->name = name; | |
2218 | k->tk = tk; | |
2219 | k->next = keyword_table[h]; | |
2220 | keyword_table[h] = k; | |
2221 | } | |
2222 | ||
2223 | ||
2224 | /* Initialize the scanner for the first file. This sets up the | |
2225 | character class vectors and fills the keyword hash table. */ | |
2226 | ||
2227 | void | |
2228 | init_scanner () | |
2229 | { | |
2230 | int i; | |
2231 | ||
2232 | /* Allocate the input buffer */ | |
2233 | inbuffer_size = READ_CHUNK_SIZE + 1; | |
c43a1ff6 | 2234 | inbuffer = in = (char *) xmalloc (inbuffer_size); |
be0dbdab GM |
2235 | yyline = 1; |
2236 | ||
2237 | /* Set up character class vectors. */ | |
2238 | for (i = 0; i < sizeof is_ident; ++i) | |
2239 | { | |
2240 | if (i == '_' || isalnum (i)) | |
2241 | is_ident[i] = 1; | |
2242 | ||
2243 | if (i >= '0' && i <= '9') | |
2244 | is_digit[i] = 1; | |
2245 | ||
2246 | if (i == ' ' || i == '\t' || i == '\f' || i == '\v') | |
2247 | is_white[i] = 1; | |
2248 | } | |
2249 | ||
2250 | /* Fill keyword hash table. */ | |
2251 | insert_keyword ("and", LAND); | |
2252 | insert_keyword ("and_eq", ANDASGN); | |
2253 | insert_keyword ("asm", ASM); | |
2254 | insert_keyword ("auto", AUTO); | |
2255 | insert_keyword ("bitand", '&'); | |
2256 | insert_keyword ("bitor", '|'); | |
2257 | insert_keyword ("bool", BOOL); | |
2258 | insert_keyword ("break", BREAK); | |
2259 | insert_keyword ("case", CASE); | |
2260 | insert_keyword ("catch", CATCH); | |
2261 | insert_keyword ("char", CHAR); | |
2262 | insert_keyword ("class", CLASS); | |
2263 | insert_keyword ("compl", '~'); | |
2264 | insert_keyword ("const", CONST); | |
2265 | insert_keyword ("const_cast", CONST_CAST); | |
2266 | insert_keyword ("continue", CONTINUE); | |
2267 | insert_keyword ("default", DEFAULT); | |
2268 | insert_keyword ("delete", DELETE); | |
2269 | insert_keyword ("do", DO); | |
2270 | insert_keyword ("double", DOUBLE); | |
2271 | insert_keyword ("dynamic_cast", DYNAMIC_CAST); | |
2272 | insert_keyword ("else", ELSE); | |
2273 | insert_keyword ("enum", ENUM); | |
2274 | insert_keyword ("explicit", EXPLICIT); | |
2275 | insert_keyword ("extern", EXTERN); | |
2276 | insert_keyword ("false", FALSE); | |
2277 | insert_keyword ("float", FLOAT); | |
2278 | insert_keyword ("for", FOR); | |
2279 | insert_keyword ("friend", FRIEND); | |
2280 | insert_keyword ("goto", GOTO); | |
2281 | insert_keyword ("if", IF); | |
2282 | insert_keyword ("inline", T_INLINE); | |
2283 | insert_keyword ("int", INT); | |
2284 | insert_keyword ("long", LONG); | |
2285 | insert_keyword ("mutable", MUTABLE); | |
2286 | insert_keyword ("namespace", NAMESPACE); | |
2287 | insert_keyword ("new", NEW); | |
2288 | insert_keyword ("not", '!'); | |
2289 | insert_keyword ("not_eq", NE); | |
2290 | insert_keyword ("operator", OPERATOR); | |
2291 | insert_keyword ("or", LOR); | |
2292 | insert_keyword ("or_eq", ORASGN); | |
2293 | insert_keyword ("private", PRIVATE); | |
2294 | insert_keyword ("protected", PROTECTED); | |
2295 | insert_keyword ("public", PUBLIC); | |
2296 | insert_keyword ("register", REGISTER); | |
2297 | insert_keyword ("reinterpret_cast", REINTERPRET_CAST); | |
2298 | insert_keyword ("return", RETURN); | |
2299 | insert_keyword ("short", SHORT); | |
2300 | insert_keyword ("signed", SIGNED); | |
2301 | insert_keyword ("sizeof", SIZEOF); | |
2302 | insert_keyword ("static", STATIC); | |
2303 | insert_keyword ("static_cast", STATIC_CAST); | |
2304 | insert_keyword ("struct", STRUCT); | |
2305 | insert_keyword ("switch", SWITCH); | |
2306 | insert_keyword ("template", TEMPLATE); | |
2307 | insert_keyword ("this", THIS); | |
2308 | insert_keyword ("throw", THROW); | |
2309 | insert_keyword ("true", TRUE); | |
2310 | insert_keyword ("try", TRY); | |
2311 | insert_keyword ("typedef", TYPEDEF); | |
2312 | insert_keyword ("typeid", TYPEID); | |
2313 | insert_keyword ("typename", TYPENAME); | |
2314 | insert_keyword ("union", UNION); | |
2315 | insert_keyword ("unsigned", UNSIGNED); | |
2316 | insert_keyword ("using", USING); | |
2317 | insert_keyword ("virtual", VIRTUAL); | |
2318 | insert_keyword ("void", VOID); | |
2319 | insert_keyword ("volatile", VOLATILE); | |
2320 | insert_keyword ("wchar_t", WCHAR); | |
2321 | insert_keyword ("while", WHILE); | |
2322 | insert_keyword ("xor", '^'); | |
2323 | insert_keyword ("xor_eq", XORASGN); | |
2324 | } | |
2325 | ||
2326 | ||
2327 | \f | |
2328 | /*********************************************************************** | |
2329 | Parser | |
2330 | ***********************************************************************/ | |
2331 | ||
2332 | /* Match the current lookahead token and set it to the next token. */ | |
2333 | ||
2334 | #define MATCH() (tk = yylex ()) | |
2335 | ||
2336 | /* Return the lookahead token. If current lookahead token is cleared, | |
2337 | read a new token. */ | |
2338 | ||
2339 | #define LA1 (tk == -1 ? (tk = yylex ()) : tk) | |
2340 | ||
2341 | /* Is the current lookahead equal to the token T? */ | |
2342 | ||
2343 | #define LOOKING_AT(T) (tk == (T)) | |
2344 | ||
2345 | /* Is the current lookahead one of T1 or T2? */ | |
2346 | ||
2347 | #define LOOKING_AT2(T1, T2) (tk == (T1) || tk == (T2)) | |
2348 | ||
2349 | /* Is the current lookahead one of T1, T2 or T3? */ | |
2350 | ||
2351 | #define LOOKING_AT3(T1, T2, T3) (tk == (T1) || tk == (T2) || tk == (T3)) | |
2352 | ||
2353 | /* Is the current lookahead one of T1...T4? */ | |
2354 | ||
2355 | #define LOOKING_AT4(T1, T2, T3, T4) \ | |
2356 | (tk == (T1) || tk == (T2) || tk == (T3) || tk == (T4)) | |
2357 | ||
2358 | /* Match token T if current lookahead is T. */ | |
2359 | ||
2360 | #define MATCH_IF(T) if (LOOKING_AT (T)) MATCH (); else ((void) 0) | |
2361 | ||
2362 | /* Skip to matching token if current token is T. */ | |
2363 | ||
2364 | #define SKIP_MATCHING_IF(T) \ | |
2365 | if (LOOKING_AT (T)) skip_matching (); else ((void) 0) | |
2366 | ||
2367 | ||
2368 | /* Skip forward until a given token TOKEN or YYEOF is seen and return | |
2369 | the current lookahead token after skipping. */ | |
2370 | ||
2371 | int | |
2372 | skip_to (token) | |
2373 | int token; | |
2374 | { | |
2375 | while (!LOOKING_AT2 (YYEOF, token)) | |
2376 | MATCH (); | |
2377 | return tk; | |
2378 | } | |
2379 | ||
be0dbdab GM |
2380 | /* Skip over pairs of tokens (parentheses, square brackets, |
2381 | angle brackets, curly brackets) matching the current lookahead. */ | |
2382 | ||
2383 | void | |
2384 | skip_matching () | |
2385 | { | |
2386 | int open, close, n; | |
2387 | ||
2388 | switch (open = LA1) | |
2389 | { | |
2390 | case '{': | |
2391 | close = '}'; | |
2392 | break; | |
69bfc389 | 2393 | |
be0dbdab GM |
2394 | case '(': |
2395 | close = ')'; | |
2396 | break; | |
69bfc389 | 2397 | |
be0dbdab GM |
2398 | case '<': |
2399 | close = '>'; | |
2400 | break; | |
69bfc389 | 2401 | |
be0dbdab GM |
2402 | case '[': |
2403 | close = ']'; | |
2404 | break; | |
69bfc389 | 2405 | |
be0dbdab GM |
2406 | default: |
2407 | abort (); | |
2408 | } | |
2409 | ||
2410 | for (n = 0;;) | |
2411 | { | |
2412 | if (LOOKING_AT (open)) | |
2413 | ++n; | |
2414 | else if (LOOKING_AT (close)) | |
2415 | --n; | |
2416 | else if (LOOKING_AT (YYEOF)) | |
2417 | break; | |
2418 | ||
2419 | MATCH (); | |
2420 | ||
2421 | if (n == 0) | |
2422 | break; | |
2423 | } | |
2424 | } | |
2425 | ||
beedfcf1 | 2426 | void |
fa8bc89d GM |
2427 | skip_initializer () |
2428 | { | |
2429 | for (;;) | |
2430 | { | |
2431 | switch (LA1) | |
2432 | { | |
2433 | case ';': | |
2434 | case ',': | |
2435 | case YYEOF: | |
2436 | return; | |
2437 | ||
2438 | case '{': | |
2439 | case '[': | |
2440 | case '(': | |
2441 | skip_matching (); | |
2442 | break; | |
2443 | ||
2444 | default: | |
2445 | MATCH (); | |
2446 | break; | |
2447 | } | |
2448 | } | |
2449 | } | |
be0dbdab | 2450 | |
407094f4 GM |
2451 | /* Build qualified namespace alias (A::B::c) and return it. */ |
2452 | ||
2453 | struct link * | |
2454 | match_qualified_namespace_alias () | |
2455 | { | |
2456 | struct link *head = NULL; | |
2457 | struct link *cur = NULL; | |
2458 | struct link *tmp = NULL; | |
2459 | ||
2460 | for (;;) | |
2461 | { | |
2462 | MATCH (); | |
2463 | switch (LA1) | |
2464 | { | |
2465 | case IDENT: | |
2466 | tmp = (struct link *) xmalloc (sizeof *cur); | |
2467 | tmp->sym = find_namespace (yytext, cur); | |
2468 | tmp->next = NULL; | |
2469 | if (head) | |
2470 | { | |
2471 | cur = cur->next = tmp; | |
2472 | } | |
2473 | else | |
2474 | { | |
2475 | head = cur = tmp; | |
2476 | } | |
2477 | break; | |
2478 | case DCOLON: | |
2479 | /* Just skip */ | |
2480 | break; | |
2481 | default: | |
2482 | return head; | |
2483 | break; | |
2484 | } | |
2485 | } | |
2486 | } | |
2487 | ||
be0dbdab GM |
2488 | /* Re-initialize the parser by resetting the lookahead token. */ |
2489 | ||
2490 | void | |
2491 | re_init_parser () | |
2492 | { | |
2493 | tk = -1; | |
2494 | } | |
2495 | ||
2496 | ||
2497 | /* Parse a parameter list, including the const-specifier, | |
2498 | pure-specifier, and throw-list that may follow a parameter list. | |
2499 | Return in FLAGS what was seen following the parameter list. | |
2500 | Returns a hash code for the parameter types. This value is used to | |
2501 | distinguish between overloaded functions. */ | |
2502 | ||
2503 | unsigned | |
2504 | parm_list (flags) | |
2505 | int *flags; | |
2506 | { | |
2507 | unsigned hash = 0; | |
2508 | int type_seen = 0; | |
2509 | ||
2510 | while (!LOOKING_AT2 (YYEOF, ')')) | |
2511 | { | |
2512 | switch (LA1) | |
2513 | { | |
177c0ea7 | 2514 | /* Skip over grouping parens or parameter lists in parameter |
be0dbdab GM |
2515 | declarations. */ |
2516 | case '(': | |
2517 | skip_matching (); | |
2518 | break; | |
2519 | ||
2520 | /* Next parameter. */ | |
2521 | case ',': | |
2522 | MATCH (); | |
2523 | type_seen = 0; | |
2524 | break; | |
2525 | ||
2526 | /* Ignore the scope part of types, if any. This is because | |
2527 | some types need scopes when defined outside of a class body, | |
2528 | and don't need them inside the class body. This means that | |
2529 | we have to look for the last IDENT in a sequence of | |
2530 | IDENT::IDENT::... */ | |
2531 | case IDENT: | |
2532 | if (!type_seen) | |
2533 | { | |
2faf048a | 2534 | char *last_id; |
be0dbdab | 2535 | unsigned ident_type_hash = 0; |
69bfc389 | 2536 | |
2faf048a GM |
2537 | parse_qualified_param_ident_or_type (&last_id); |
2538 | if (last_id) | |
2539 | { | |
2540 | /* LAST_ID null means something like `X::*'. */ | |
2541 | for (; *last_id; ++last_id) | |
2542 | ident_type_hash = (ident_type_hash << 1) ^ *last_id; | |
2543 | hash = (hash << 1) ^ ident_type_hash; | |
2544 | type_seen = 1; | |
2545 | } | |
be0dbdab GM |
2546 | } |
2547 | else | |
2548 | MATCH (); | |
2549 | break; | |
2550 | ||
2551 | case VOID: | |
2552 | /* This distinction is made to make `func (void)' equivalent | |
2553 | to `func ()'. */ | |
2554 | type_seen = 1; | |
2555 | MATCH (); | |
2556 | if (!LOOKING_AT (')')) | |
2557 | hash = (hash << 1) ^ VOID; | |
2558 | break; | |
2559 | ||
2560 | case BOOL: case CHAR: case CLASS: case CONST: | |
2561 | case DOUBLE: case ENUM: case FLOAT: case INT: | |
2562 | case LONG: case SHORT: case SIGNED: case STRUCT: | |
2563 | case UNION: case UNSIGNED: case VOLATILE: case WCHAR: | |
69bfc389 | 2564 | case ELLIPSIS: |
be0dbdab GM |
2565 | type_seen = 1; |
2566 | hash = (hash << 1) ^ LA1; | |
2567 | MATCH (); | |
2568 | break; | |
2569 | ||
2570 | case '*': case '&': case '[': case ']': | |
2571 | hash = (hash << 1) ^ LA1; | |
2572 | MATCH (); | |
2573 | break; | |
2574 | ||
2575 | default: | |
2576 | MATCH (); | |
2577 | break; | |
2578 | } | |
2579 | } | |
2580 | ||
2581 | if (LOOKING_AT (')')) | |
2582 | { | |
2583 | MATCH (); | |
69bfc389 | 2584 | |
be0dbdab GM |
2585 | if (LOOKING_AT (CONST)) |
2586 | { | |
2587 | /* We can overload the same function on `const' */ | |
2588 | hash = (hash << 1) ^ CONST; | |
2589 | SET_FLAG (*flags, F_CONST); | |
2590 | MATCH (); | |
2591 | } | |
2592 | ||
2593 | if (LOOKING_AT (THROW)) | |
2594 | { | |
2595 | MATCH (); | |
2596 | SKIP_MATCHING_IF ('('); | |
2597 | SET_FLAG (*flags, F_THROW); | |
2598 | } | |
2599 | ||
2600 | if (LOOKING_AT ('=')) | |
2601 | { | |
2602 | MATCH (); | |
2603 | if (LOOKING_AT (CINT) && yyival == 0) | |
2604 | { | |
2605 | MATCH (); | |
2606 | SET_FLAG (*flags, F_PURE); | |
2607 | } | |
2608 | } | |
2609 | } | |
2610 | ||
2611 | return hash; | |
2612 | } | |
2613 | ||
2614 | ||
2615 | /* Print position info to stdout. */ | |
2616 | ||
2617 | void | |
2618 | print_info () | |
2619 | { | |
2620 | if (info_position >= 0 && BUFFER_POS () <= info_position) | |
2621 | if (info_cls) | |
2622 | printf ("(\"%s\" \"%s\" \"%s\" %d)\n", | |
2623 | info_cls->name, sym_scope (info_cls), | |
2624 | info_member->name, info_where); | |
2625 | } | |
2626 | ||
2627 | ||
2628 | /* Parse a member declaration within the class body of CLS. VIS is | |
2629 | the access specifier for the member (private, protected, | |
2630 | public). */ | |
2631 | ||
2632 | void | |
2633 | member (cls, vis) | |
2634 | struct sym *cls; | |
2635 | int vis; | |
2636 | { | |
2637 | char *id = NULL; | |
2638 | int sc = SC_MEMBER; | |
2639 | char *regexp = NULL; | |
2640 | int pos; | |
2641 | int is_constructor; | |
2642 | int anonymous = 0; | |
2643 | int flags = 0; | |
2644 | int class_tag; | |
2645 | int type_seen = 0; | |
2646 | int paren_seen = 0; | |
2647 | unsigned hash = 0; | |
2648 | int tilde = 0; | |
2649 | ||
2650 | while (!LOOKING_AT4 (';', '{', '}', YYEOF)) | |
2651 | { | |
2652 | switch (LA1) | |
2653 | { | |
2654 | default: | |
2655 | MATCH (); | |
2656 | break; | |
2657 | ||
2658 | /* A function or class may follow. */ | |
2659 | case TEMPLATE: | |
2660 | MATCH(); | |
2661 | SET_FLAG (flags, F_TEMPLATE); | |
2662 | /* Skip over template argument list */ | |
2663 | SKIP_MATCHING_IF ('<'); | |
2664 | break; | |
2665 | ||
2666 | case EXPLICIT: | |
2667 | SET_FLAG (flags, F_EXPLICIT); | |
2668 | goto typeseen; | |
69bfc389 | 2669 | |
be0dbdab GM |
2670 | case MUTABLE: |
2671 | SET_FLAG (flags, F_MUTABLE); | |
2672 | goto typeseen; | |
2673 | ||
2674 | case T_INLINE: | |
2675 | SET_FLAG (flags, F_INLINE); | |
2676 | goto typeseen; | |
2677 | ||
2678 | case VIRTUAL: | |
2679 | SET_FLAG (flags, F_VIRTUAL); | |
2680 | goto typeseen; | |
2681 | ||
2682 | case '[': | |
2683 | skip_matching (); | |
2684 | break; | |
2685 | ||
2686 | case ENUM: | |
2687 | sc = SC_TYPE; | |
2688 | goto typeseen; | |
2689 | ||
2690 | case TYPEDEF: | |
2691 | sc = SC_TYPE; | |
2692 | goto typeseen; | |
2693 | ||
2694 | case FRIEND: | |
2695 | sc = SC_FRIEND; | |
2696 | goto typeseen; | |
2697 | ||
2698 | case STATIC: | |
2699 | sc = SC_STATIC; | |
2700 | goto typeseen; | |
2701 | ||
2702 | case '~': | |
2703 | tilde = 1; | |
2704 | MATCH (); | |
2705 | break; | |
2706 | ||
2707 | case IDENT: | |
57b4c82e GM |
2708 | /* Remember IDENTS seen so far. Among these will be the member |
2709 | name. */ | |
2710 | id = (char *) xrealloc (id, strlen (yytext) + 2); | |
be0dbdab GM |
2711 | if (tilde) |
2712 | { | |
2713 | *id = '~'; | |
2714 | strcpy (id + 1, yytext); | |
2715 | } | |
2716 | else | |
2717 | strcpy (id, yytext); | |
2718 | MATCH (); | |
2719 | break; | |
2720 | ||
2721 | case OPERATOR: | |
57b4c82e GM |
2722 | { |
2723 | char *s = operator_name (&sc); | |
2724 | id = (char *) xrealloc (id, strlen (s) + 1); | |
2725 | strcpy (id, s); | |
2726 | } | |
be0dbdab GM |
2727 | break; |
2728 | ||
2729 | case '(': | |
2730 | /* Most probably the beginning of a parameter list. */ | |
2731 | MATCH (); | |
2732 | paren_seen = 1; | |
2733 | ||
2734 | if (id && cls) | |
2735 | { | |
2736 | if (!(is_constructor = streq (id, cls->name))) | |
2737 | regexp = matching_regexp (); | |
2738 | } | |
2739 | else | |
2740 | is_constructor = 0; | |
2741 | ||
2742 | pos = BUFFER_POS (); | |
2743 | hash = parm_list (&flags); | |
2744 | ||
2745 | if (is_constructor) | |
2746 | regexp = matching_regexp (); | |
2747 | ||
2748 | if (id && cls != NULL) | |
2749 | add_member_decl (cls, id, regexp, pos, hash, 0, sc, vis, flags); | |
2750 | ||
2751 | while (!LOOKING_AT3 (';', '{', YYEOF)) | |
2752 | MATCH (); | |
2753 | ||
2754 | if (LOOKING_AT ('{') && id && cls) | |
2755 | add_member_defn (cls, id, regexp, pos, hash, 0, sc, flags); | |
57b4c82e GM |
2756 | |
2757 | xfree (id); | |
be0dbdab GM |
2758 | id = NULL; |
2759 | sc = SC_MEMBER; | |
2760 | break; | |
2761 | ||
2762 | case STRUCT: case UNION: case CLASS: | |
2763 | /* Nested class */ | |
2764 | class_tag = LA1; | |
2765 | type_seen = 1; | |
2766 | MATCH (); | |
2767 | anonymous = 1; | |
2768 | ||
2769 | /* More than one ident here to allow for MS-DOS specialties | |
2770 | like `_export class' etc. The last IDENT seen counts | |
2771 | as the class name. */ | |
2772 | while (!LOOKING_AT4 (YYEOF, ';', ':', '{')) | |
2773 | { | |
2774 | if (LOOKING_AT (IDENT)) | |
2775 | anonymous = 0; | |
2776 | MATCH (); | |
2777 | } | |
2778 | ||
2779 | if (LOOKING_AT2 (':', '{')) | |
2780 | class_definition (anonymous ? NULL : cls, class_tag, flags, 1); | |
2781 | else | |
2782 | skip_to (';'); | |
2783 | break; | |
2784 | ||
2785 | case INT: case CHAR: case LONG: case UNSIGNED: | |
2786 | case SIGNED: case CONST: case DOUBLE: case VOID: | |
2787 | case SHORT: case VOLATILE: case BOOL: case WCHAR: | |
2788 | case TYPENAME: | |
2789 | typeseen: | |
2790 | type_seen = 1; | |
2791 | MATCH (); | |
2792 | break; | |
2793 | } | |
2794 | } | |
2795 | ||
2796 | if (LOOKING_AT (';')) | |
2797 | { | |
2798 | /* The end of a member variable, a friend declaration or an access | |
2799 | declaration. We don't want to add friend classes as members. */ | |
2800 | if (id && sc != SC_FRIEND && cls) | |
2801 | { | |
2802 | regexp = matching_regexp (); | |
2803 | pos = BUFFER_POS (); | |
69bfc389 | 2804 | |
be0dbdab GM |
2805 | if (cls != NULL) |
2806 | { | |
2807 | if (type_seen || !paren_seen) | |
2808 | add_member_decl (cls, id, regexp, pos, 0, 1, sc, vis, 0); | |
2809 | else | |
2810 | add_member_decl (cls, id, regexp, pos, hash, 0, sc, vis, 0); | |
2811 | } | |
2812 | } | |
69bfc389 | 2813 | |
be0dbdab GM |
2814 | MATCH (); |
2815 | print_info (); | |
2816 | } | |
2817 | else if (LOOKING_AT ('{')) | |
2818 | { | |
2819 | /* A named enum. */ | |
2820 | if (sc == SC_TYPE && id && cls) | |
2821 | { | |
2822 | regexp = matching_regexp (); | |
2823 | pos = BUFFER_POS (); | |
2824 | ||
2825 | if (cls != NULL) | |
2826 | { | |
2827 | add_member_decl (cls, id, regexp, pos, 0, 1, sc, vis, 0); | |
2828 | add_member_defn (cls, id, regexp, pos, 0, 1, sc, 0); | |
2829 | } | |
2830 | } | |
2831 | ||
2832 | skip_matching (); | |
2833 | print_info (); | |
2834 | } | |
57b4c82e GM |
2835 | |
2836 | xfree (id); | |
be0dbdab GM |
2837 | } |
2838 | ||
2839 | ||
2840 | /* Parse the body of class CLS. TAG is the tag of the class (struct, | |
2841 | union, class). */ | |
2842 | ||
2843 | void | |
2844 | class_body (cls, tag) | |
2845 | struct sym *cls; | |
2846 | int tag; | |
2847 | { | |
2848 | int vis = tag == CLASS ? PRIVATE : PUBLIC; | |
2849 | int temp; | |
2850 | ||
2851 | while (!LOOKING_AT2 (YYEOF, '}')) | |
2852 | { | |
2853 | switch (LA1) | |
2854 | { | |
2855 | case PRIVATE: case PROTECTED: case PUBLIC: | |
2856 | temp = LA1; | |
2857 | MATCH (); | |
2858 | ||
2859 | if (LOOKING_AT (':')) | |
2860 | { | |
2861 | vis = temp; | |
2862 | MATCH (); | |
2863 | } | |
2864 | else | |
2865 | { | |
2866 | /* Probably conditional compilation for inheritance list. | |
2867 | We don't known whether there comes more of this. | |
2868 | This is only a crude fix that works most of the time. */ | |
2869 | do | |
2870 | { | |
2871 | MATCH (); | |
2872 | } | |
2873 | while (LOOKING_AT2 (IDENT, ',') | |
2874 | || LOOKING_AT3 (PUBLIC, PROTECTED, PRIVATE)); | |
2875 | } | |
2876 | break; | |
2877 | ||
2878 | case TYPENAME: | |
2879 | case USING: | |
2880 | skip_to (';'); | |
2881 | break; | |
2882 | ||
2883 | /* Try to synchronize */ | |
2884 | case CHAR: case CLASS: case CONST: | |
2885 | case DOUBLE: case ENUM: case FLOAT: case INT: | |
2886 | case LONG: case SHORT: case SIGNED: case STRUCT: | |
2887 | case UNION: case UNSIGNED: case VOID: case VOLATILE: | |
2888 | case TYPEDEF: case STATIC: case T_INLINE: case FRIEND: | |
2889 | case VIRTUAL: case TEMPLATE: case IDENT: case '~': | |
2890 | case BOOL: case WCHAR: case EXPLICIT: case MUTABLE: | |
2891 | member (cls, vis); | |
2892 | break; | |
2893 | ||
2894 | default: | |
2895 | MATCH (); | |
2896 | break; | |
2897 | } | |
2898 | } | |
2899 | } | |
2900 | ||
2901 | ||
2902 | /* Parse a qualified identifier. Current lookahead is IDENT. A | |
2903 | qualified ident has the form `X<..>::Y<...>::T<...>. Returns a | |
2904 | symbol for that class. */ | |
2905 | ||
2906 | struct sym * | |
2907 | parse_classname () | |
2908 | { | |
2909 | struct sym *last_class = NULL; | |
69bfc389 | 2910 | |
be0dbdab GM |
2911 | while (LOOKING_AT (IDENT)) |
2912 | { | |
2913 | last_class = add_sym (yytext, last_class); | |
2914 | MATCH (); | |
2915 | ||
2916 | if (LOOKING_AT ('<')) | |
2917 | { | |
2918 | skip_matching (); | |
2919 | SET_FLAG (last_class->flags, F_TEMPLATE); | |
2920 | } | |
69bfc389 | 2921 | |
be0dbdab GM |
2922 | if (!LOOKING_AT (DCOLON)) |
2923 | break; | |
69bfc389 | 2924 | |
be0dbdab GM |
2925 | MATCH (); |
2926 | } | |
2927 | ||
2928 | return last_class; | |
2929 | } | |
2930 | ||
2931 | ||
2932 | /* Parse an operator name. Add the `static' flag to *SC if an | |
2933 | implicitly static operator has been parsed. Value is a pointer to | |
2934 | a static buffer holding the constructed operator name string. */ | |
2935 | ||
2936 | char * | |
2937 | operator_name (sc) | |
2938 | int *sc; | |
2939 | { | |
2940 | static int id_size = 0; | |
2941 | static char *id = NULL; | |
2942 | char *s; | |
2943 | int len; | |
69bfc389 | 2944 | |
be0dbdab GM |
2945 | MATCH (); |
2946 | ||
2947 | if (LOOKING_AT2 (NEW, DELETE)) | |
2948 | { | |
2949 | /* `new' and `delete' are implicitly static. */ | |
2950 | if (*sc != SC_FRIEND) | |
2951 | *sc = SC_STATIC; | |
2952 | ||
2953 | s = token_string (LA1); | |
2954 | MATCH (); | |
69bfc389 | 2955 | |
be0dbdab GM |
2956 | len = strlen (s) + 10; |
2957 | if (len > id_size) | |
2958 | { | |
2959 | int new_size = max (len, 2 * id_size); | |
c43a1ff6 | 2960 | id = (char *) xrealloc (id, new_size); |
be0dbdab GM |
2961 | id_size = new_size; |
2962 | } | |
2963 | strcpy (id, s); | |
2964 | ||
69bfc389 | 2965 | /* Vector new or delete? */ |
be0dbdab GM |
2966 | if (LOOKING_AT ('[')) |
2967 | { | |
2968 | strcat (id, "["); | |
2969 | MATCH (); | |
69bfc389 | 2970 | |
be0dbdab GM |
2971 | if (LOOKING_AT (']')) |
2972 | { | |
2973 | strcat (id, "]"); | |
2974 | MATCH (); | |
2975 | } | |
2976 | } | |
2977 | } | |
2978 | else | |
2979 | { | |
2980 | int tokens_matched = 0; | |
2981 | ||
2982 | len = 20; | |
2983 | if (len > id_size) | |
2984 | { | |
2985 | int new_size = max (len, 2 * id_size); | |
c43a1ff6 | 2986 | id = (char *) xrealloc (id, new_size); |
be0dbdab GM |
2987 | id_size = new_size; |
2988 | } | |
2989 | strcpy (id, "operator"); | |
2990 | ||
2991 | /* Beware access declarations of the form "X::f;" Beware of | |
2992 | `operator () ()'. Yet another difficulty is found in | |
2993 | GCC 2.95's STL: `operator == __STL_NULL_TMPL_ARGS (...'. */ | |
2994 | while (!(LOOKING_AT ('(') && tokens_matched) | |
2995 | && !LOOKING_AT2 (';', YYEOF)) | |
2996 | { | |
2997 | s = token_string (LA1); | |
2998 | len += strlen (s) + 2; | |
2999 | if (len > id_size) | |
3000 | { | |
3001 | int new_size = max (len, 2 * id_size); | |
c43a1ff6 | 3002 | id = (char *) xrealloc (id, new_size); |
be0dbdab GM |
3003 | id_size = new_size; |
3004 | } | |
3005 | ||
3006 | if (*s != ')' && *s != ']') | |
3007 | strcat (id, " "); | |
3008 | strcat (id, s); | |
3009 | MATCH (); | |
3010 | ||
3011 | /* If this is a simple operator like `+', stop now. */ | |
db3a495e | 3012 | if (!isalpha ((unsigned char) *s) && *s != '(' && *s != '[') |
be0dbdab GM |
3013 | break; |
3014 | ||
3015 | ++tokens_matched; | |
3016 | } | |
3017 | } | |
3018 | ||
3019 | return id; | |
3020 | } | |
3021 | ||
3022 | ||
3023 | /* This one consumes the last IDENT of a qualified member name like | |
407094f4 | 3024 | `X::Y::z'. This IDENT is returned in LAST_ID. Value is the |
be0dbdab GM |
3025 | symbol structure for the ident. */ |
3026 | ||
3027 | struct sym * | |
3028 | parse_qualified_ident_or_type (last_id) | |
3029 | char **last_id; | |
3030 | { | |
3031 | struct sym *cls = NULL; | |
1727db8c GM |
3032 | char *id = NULL; |
3033 | size_t id_size = 0; | |
407094f4 | 3034 | int enter = 0; |
69bfc389 | 3035 | |
be0dbdab GM |
3036 | while (LOOKING_AT (IDENT)) |
3037 | { | |
3038 | int len = strlen (yytext) + 1; | |
3039 | if (len > id_size) | |
3040 | { | |
c43a1ff6 | 3041 | id = (char *) xrealloc (id, len); |
be0dbdab GM |
3042 | id_size = len; |
3043 | } | |
3044 | strcpy (id, yytext); | |
3045 | *last_id = id; | |
3046 | MATCH (); | |
3047 | ||
3048 | SKIP_MATCHING_IF ('<'); | |
3049 | ||
3050 | if (LOOKING_AT (DCOLON)) | |
3051 | { | |
407094f4 GM |
3052 | struct sym *pcn = NULL; |
3053 | struct link *pna = check_namespace_alias (id); | |
3054 | if (pna) | |
3055 | { | |
3056 | do | |
3057 | { | |
3058 | enter_namespace (pna->sym->name); | |
3059 | enter++; | |
3060 | pna = pna->next; | |
3061 | } | |
3062 | while (pna); | |
3063 | } | |
3064 | else if ((pcn = check_namespace (id, current_namespace))) | |
3065 | { | |
3066 | enter_namespace (pcn->name); | |
3067 | enter++; | |
3068 | } | |
3069 | else | |
3070 | cls = add_sym (id, cls); | |
3071 | ||
be0dbdab | 3072 | *last_id = NULL; |
1727db8c GM |
3073 | xfree (id); |
3074 | id = NULL; | |
3075 | id_size = 0; | |
be0dbdab GM |
3076 | MATCH (); |
3077 | } | |
3078 | else | |
3079 | break; | |
3080 | } | |
3081 | ||
407094f4 GM |
3082 | while (enter--) |
3083 | leave_namespace(); | |
3084 | ||
be0dbdab GM |
3085 | return cls; |
3086 | } | |
3087 | ||
3088 | ||
3089 | /* This one consumes the last IDENT of a qualified member name like | |
407094f4 | 3090 | `X::Y::z'. This IDENT is returned in LAST_ID. Value is the |
be0dbdab GM |
3091 | symbol structure for the ident. */ |
3092 | ||
3093 | void | |
3094 | parse_qualified_param_ident_or_type (last_id) | |
3095 | char **last_id; | |
3096 | { | |
3097 | struct sym *cls = NULL; | |
3098 | static char *id = NULL; | |
3099 | static int id_size = 0; | |
2faf048a | 3100 | |
be0dbdab GM |
3101 | while (LOOKING_AT (IDENT)) |
3102 | { | |
3103 | int len = strlen (yytext) + 1; | |
3104 | if (len > id_size) | |
3105 | { | |
c43a1ff6 | 3106 | id = (char *) xrealloc (id, len); |
be0dbdab GM |
3107 | id_size = len; |
3108 | } | |
3109 | strcpy (id, yytext); | |
3110 | *last_id = id; | |
3111 | MATCH (); | |
3112 | ||
3113 | SKIP_MATCHING_IF ('<'); | |
3114 | ||
3115 | if (LOOKING_AT (DCOLON)) | |
3116 | { | |
3117 | cls = add_sym (id, cls); | |
3118 | *last_id = NULL; | |
3119 | MATCH (); | |
3120 | } | |
3121 | else | |
3122 | break; | |
3123 | } | |
3124 | } | |
3125 | ||
3126 | ||
3127 | /* Parse a class definition. | |
3128 | ||
3129 | CONTAINING is the class containing the class being parsed or null. | |
3130 | This may also be null if NESTED != 0 if the containing class is | |
3131 | anonymous. TAG is the tag of the class (struct, union, class). | |
3132 | NESTED is non-zero if we are parsing a nested class. | |
3133 | ||
3134 | Current lookahead is the class name. */ | |
3135 | ||
3136 | void | |
3137 | class_definition (containing, tag, flags, nested) | |
3138 | struct sym *containing; | |
3139 | int tag; | |
3140 | int flags; | |
3141 | int nested; | |
3142 | { | |
be0dbdab GM |
3143 | struct sym *current; |
3144 | struct sym *base_class; | |
3145 | ||
3146 | /* Set CURRENT to null if no entry has to be made for the class | |
3147 | parsed. This is the case for certain command line flag | |
3148 | settings. */ | |
3149 | if ((tag != CLASS && !f_structs) || (nested && !f_nested_classes)) | |
3150 | current = NULL; | |
177c0ea7 | 3151 | else |
be0dbdab GM |
3152 | { |
3153 | current = add_sym (yytext, containing); | |
3154 | current->pos = BUFFER_POS (); | |
3155 | current->regexp = matching_regexp (); | |
3156 | current->filename = filename; | |
3157 | current->flags = flags; | |
3158 | } | |
3159 | ||
3160 | /* If at ':', base class list follows. */ | |
3161 | if (LOOKING_AT (':')) | |
3162 | { | |
3163 | int done = 0; | |
3164 | MATCH (); | |
3165 | ||
3166 | while (!done) | |
3167 | { | |
8bef35f2 | 3168 | switch (LA1) |
be0dbdab | 3169 | { |
177c0ea7 | 3170 | case VIRTUAL: case PUBLIC: case PROTECTED: case PRIVATE: |
be0dbdab GM |
3171 | MATCH (); |
3172 | break; | |
3173 | ||
3174 | case IDENT: | |
3175 | base_class = parse_classname (); | |
3176 | if (base_class && current && base_class != current) | |
3177 | add_link (base_class, current); | |
3178 | break; | |
3179 | ||
3180 | /* The `,' between base classes or the end of the base | |
3181 | class list. Add the previously found base class. | |
3182 | It's done this way to skip over sequences of | |
3183 | `A::B::C' until we reach the end. | |
3184 | ||
3185 | FIXME: it is now possible to handle `class X : public B::X' | |
3186 | because we have enough information. */ | |
3187 | case ',': | |
3188 | MATCH (); | |
3189 | break; | |
3190 | ||
3191 | default: | |
3192 | /* A syntax error, possibly due to preprocessor constructs | |
3193 | like | |
3194 | ||
3195 | #ifdef SOMETHING | |
3196 | class A : public B | |
3197 | #else | |
3198 | class A : private B. | |
3199 | ||
3200 | MATCH until we see something like `;' or `{'. */ | |
3201 | while (!LOOKING_AT3 (';', YYEOF, '{')) | |
3202 | MATCH (); | |
3203 | done = 1; | |
3204 | ||
3205 | case '{': | |
3206 | done = 1; | |
3207 | break; | |
3208 | } | |
3209 | } | |
3210 | } | |
3211 | ||
3212 | /* Parse the class body if there is one. */ | |
3213 | if (LOOKING_AT ('{')) | |
3214 | { | |
3215 | if (tag != CLASS && !f_structs) | |
3216 | skip_matching (); | |
3217 | else | |
3218 | { | |
3219 | MATCH (); | |
3220 | class_body (current, tag); | |
3221 | ||
3222 | if (LOOKING_AT ('}')) | |
3223 | { | |
3224 | MATCH (); | |
3225 | if (LOOKING_AT (';') && !nested) | |
3226 | MATCH (); | |
3227 | } | |
3228 | } | |
3229 | } | |
3230 | } | |
3231 | ||
fa8bc89d GM |
3232 | /* Add to class *CLS information for the declaration of variable or |
3233 | type *ID. If *CLS is null, this means a global declaration. SC is | |
3234 | the storage class of *ID. FLAGS is a bit set giving additional | |
3235 | information about the member (see the F_* defines). */ | |
3236 | ||
3237 | void | |
3238 | add_declarator (cls, id, flags, sc) | |
3239 | struct sym **cls; | |
3240 | char **id; | |
3241 | int flags, sc; | |
3242 | { | |
3243 | if (LOOKING_AT2 (';', ',')) | |
3244 | { | |
3245 | /* The end of a member variable or of an access declaration | |
3246 | `X::f'. To distinguish between them we have to know whether | |
3247 | type information has been seen. */ | |
3248 | if (*id) | |
3249 | { | |
3250 | char *regexp = matching_regexp (); | |
3251 | int pos = BUFFER_POS (); | |
3252 | ||
c901ceff | 3253 | if (*cls) |
74974a34 | 3254 | add_member_defn (*cls, *id, regexp, pos, 0, 1, SC_UNKNOWN, flags); |
fa8bc89d GM |
3255 | else |
3256 | add_global_defn (*id, regexp, pos, 0, 1, sc, flags); | |
3257 | } | |
3258 | ||
3259 | MATCH (); | |
3260 | print_info (); | |
3261 | } | |
3262 | else if (LOOKING_AT ('{')) | |
3263 | { | |
3264 | if (sc == SC_TYPE && *id) | |
3265 | { | |
3266 | /* A named enumeration. */ | |
3267 | char *regexp = matching_regexp (); | |
3268 | int pos = BUFFER_POS (); | |
3269 | add_global_defn (*id, regexp, pos, 0, 1, sc, flags); | |
3270 | } | |
3271 | ||
3272 | skip_matching (); | |
3273 | print_info (); | |
3274 | } | |
3275 | ||
3276 | xfree (*id); | |
3277 | *id = NULL; | |
3278 | *cls = NULL; | |
3279 | } | |
be0dbdab GM |
3280 | |
3281 | /* Parse a declaration. */ | |
3282 | ||
3283 | void | |
8bef35f2 | 3284 | declaration (flags) |
be0dbdab GM |
3285 | int flags; |
3286 | { | |
3287 | char *id = NULL; | |
3288 | struct sym *cls = NULL; | |
3289 | char *regexp = NULL; | |
3290 | int pos = 0; | |
3291 | unsigned hash = 0; | |
3292 | int is_constructor; | |
3293 | int sc = 0; | |
3294 | ||
3295 | while (!LOOKING_AT3 (';', '{', YYEOF)) | |
3296 | { | |
3297 | switch (LA1) | |
3298 | { | |
3299 | default: | |
3300 | MATCH (); | |
3301 | break; | |
3302 | ||
3303 | case '[': | |
3304 | skip_matching (); | |
3305 | break; | |
3306 | ||
3307 | case ENUM: | |
3308 | case TYPEDEF: | |
3309 | sc = SC_TYPE; | |
3310 | MATCH (); | |
3311 | break; | |
69bfc389 | 3312 | |
be0dbdab GM |
3313 | case STATIC: |
3314 | sc = SC_STATIC; | |
3315 | MATCH (); | |
3316 | break; | |
3317 | ||
3318 | case INT: case CHAR: case LONG: case UNSIGNED: | |
3319 | case SIGNED: case CONST: case DOUBLE: case VOID: | |
3320 | case SHORT: case VOLATILE: case BOOL: case WCHAR: | |
3321 | MATCH (); | |
3322 | break; | |
3323 | ||
3324 | case CLASS: case STRUCT: case UNION: | |
3325 | /* This is for the case `STARTWRAP class X : ...' or | |
3326 | `declare (X, Y)\n class A : ...'. */ | |
3327 | if (id) | |
57b4c82e GM |
3328 | { |
3329 | xfree (id); | |
3330 | return; | |
3331 | } | |
be0dbdab GM |
3332 | |
3333 | case '=': | |
fa8bc89d GM |
3334 | /* Assumed to be the start of an initialization in this |
3335 | context. */ | |
3336 | skip_initializer (); | |
be0dbdab GM |
3337 | break; |
3338 | ||
fa8bc89d GM |
3339 | case ',': |
3340 | add_declarator (&cls, &id, flags, sc); | |
3341 | break; | |
3342 | ||
be0dbdab | 3343 | case OPERATOR: |
57b4c82e GM |
3344 | { |
3345 | char *s = operator_name (&sc); | |
3346 | id = (char *) xrealloc (id, strlen (s) + 1); | |
3347 | strcpy (id, s); | |
3348 | } | |
be0dbdab GM |
3349 | break; |
3350 | ||
3351 | case T_INLINE: | |
3352 | SET_FLAG (flags, F_INLINE); | |
3353 | MATCH (); | |
3354 | break; | |
3355 | ||
3356 | case '~': | |
3357 | MATCH (); | |
3358 | if (LOOKING_AT (IDENT)) | |
3359 | { | |
57b4c82e | 3360 | id = (char *) xrealloc (id, strlen (yytext) + 2); |
be0dbdab GM |
3361 | *id = '~'; |
3362 | strcpy (id + 1, yytext); | |
3363 | MATCH (); | |
3364 | } | |
3365 | break; | |
3366 | ||
3367 | case IDENT: | |
3368 | cls = parse_qualified_ident_or_type (&id); | |
3369 | break; | |
3370 | ||
3371 | case '(': | |
3372 | /* Most probably the beginning of a parameter list. */ | |
3373 | if (cls) | |
3374 | { | |
3375 | MATCH (); | |
3376 | ||
3377 | if (id && cls) | |
3378 | { | |
3379 | if (!(is_constructor = streq (id, cls->name))) | |
3380 | regexp = matching_regexp (); | |
3381 | } | |
3382 | else | |
3383 | is_constructor = 0; | |
3384 | ||
3385 | pos = BUFFER_POS (); | |
3386 | hash = parm_list (&flags); | |
3387 | ||
3388 | if (is_constructor) | |
3389 | regexp = matching_regexp (); | |
3390 | ||
3391 | if (id && cls) | |
3392 | add_member_defn (cls, id, regexp, pos, hash, 0, | |
3393 | SC_UNKNOWN, flags); | |
3394 | } | |
3395 | else | |
3396 | { | |
3397 | /* This may be a C functions, but also a macro | |
3398 | call of the form `declare (A, B)' --- such macros | |
3399 | can be found in some class libraries. */ | |
3400 | MATCH (); | |
3401 | ||
3402 | if (id) | |
3403 | { | |
3404 | regexp = matching_regexp (); | |
3405 | pos = BUFFER_POS (); | |
3406 | hash = parm_list (&flags); | |
3407 | add_global_decl (id, regexp, pos, hash, 0, sc, flags); | |
3408 | } | |
3409 | ||
3410 | /* This is for the case that the function really is | |
3411 | a macro with no `;' following it. If a CLASS directly | |
3412 | follows, we would miss it otherwise. */ | |
3413 | if (LOOKING_AT3 (CLASS, STRUCT, UNION)) | |
3414 | return; | |
3415 | } | |
3416 | ||
3417 | while (!LOOKING_AT3 (';', '{', YYEOF)) | |
3418 | MATCH (); | |
3419 | ||
3420 | if (!cls && id && LOOKING_AT ('{')) | |
3421 | add_global_defn (id, regexp, pos, hash, 0, sc, flags); | |
57b4c82e GM |
3422 | |
3423 | xfree (id); | |
be0dbdab GM |
3424 | id = NULL; |
3425 | break; | |
3426 | } | |
3427 | } | |
3428 | ||
fa8bc89d | 3429 | add_declarator (&cls, &id, flags, sc); |
be0dbdab GM |
3430 | } |
3431 | ||
3432 | ||
3433 | /* Parse a list of top-level declarations/definitions. START_FLAGS | |
3434 | says in which context we are parsing. If it is F_EXTERNC, we are | |
3435 | parsing in an `extern "C"' block. Value is 1 if EOF is reached, 0 | |
3436 | otherwise. */ | |
3437 | ||
3438 | int | |
3439 | globals (start_flags) | |
3440 | int start_flags; | |
3441 | { | |
3442 | int anonymous; | |
3443 | int class_tk; | |
3444 | int flags = start_flags; | |
3445 | ||
3446 | for (;;) | |
3447 | { | |
3448 | char *prev_in = in; | |
69bfc389 | 3449 | |
be0dbdab GM |
3450 | switch (LA1) |
3451 | { | |
3452 | case NAMESPACE: | |
3453 | { | |
3454 | MATCH (); | |
3455 | ||
3456 | if (LOOKING_AT (IDENT)) | |
3457 | { | |
57b4c82e | 3458 | char *namespace_name = xstrdup (yytext); |
be0dbdab | 3459 | MATCH (); |
69bfc389 | 3460 | |
be0dbdab GM |
3461 | if (LOOKING_AT ('=')) |
3462 | { | |
407094f4 GM |
3463 | struct link *qna = match_qualified_namespace_alias (); |
3464 | if (qna) | |
3465 | register_namespace_alias (namespace_name, qna); | |
69bfc389 | 3466 | |
be0dbdab GM |
3467 | if (skip_to (';') == ';') |
3468 | MATCH (); | |
be0dbdab GM |
3469 | } |
3470 | else if (LOOKING_AT ('{')) | |
3471 | { | |
3472 | MATCH (); | |
3473 | enter_namespace (namespace_name); | |
3474 | globals (0); | |
3475 | leave_namespace (); | |
3476 | MATCH_IF ('}'); | |
3477 | } | |
57b4c82e GM |
3478 | |
3479 | xfree (namespace_name); | |
be0dbdab GM |
3480 | } |
3481 | } | |
3482 | break; | |
3483 | ||
3484 | case EXTERN: | |
3485 | MATCH (); | |
3486 | if (LOOKING_AT (CSTRING) && *string_start == 'C' | |
3487 | && *(string_start + 1) == '"') | |
3488 | { | |
3489 | /* This is `extern "C"'. */ | |
3490 | MATCH (); | |
69bfc389 | 3491 | |
be0dbdab GM |
3492 | if (LOOKING_AT ('{')) |
3493 | { | |
3494 | MATCH (); | |
3495 | globals (F_EXTERNC); | |
3496 | MATCH_IF ('}'); | |
3497 | } | |
3498 | else | |
3499 | SET_FLAG (flags, F_EXTERNC); | |
3500 | } | |
3501 | break; | |
69bfc389 | 3502 | |
be0dbdab GM |
3503 | case TEMPLATE: |
3504 | MATCH (); | |
3505 | SKIP_MATCHING_IF ('<'); | |
3506 | SET_FLAG (flags, F_TEMPLATE); | |
3507 | break; | |
3508 | ||
3509 | case CLASS: case STRUCT: case UNION: | |
3510 | class_tk = LA1; | |
3511 | MATCH (); | |
3512 | anonymous = 1; | |
3513 | ||
3514 | /* More than one ident here to allow for MS-DOS and OS/2 | |
3515 | specialties like `far', `_Export' etc. Some C++ libs | |
3516 | have constructs like `_OS_DLLIMPORT(_OS_CLIENT)' in front | |
3517 | of the class name. */ | |
3518 | while (!LOOKING_AT4 (YYEOF, ';', ':', '{')) | |
3519 | { | |
3520 | if (LOOKING_AT (IDENT)) | |
3521 | anonymous = 0; | |
3522 | MATCH (); | |
3523 | } | |
3524 | ||
3525 | /* Don't add anonymous unions. */ | |
3526 | if (LOOKING_AT2 (':', '{') && !anonymous) | |
3527 | class_definition (NULL, class_tk, flags, 0); | |
3528 | else | |
3529 | { | |
3530 | if (skip_to (';') == ';') | |
3531 | MATCH (); | |
3532 | } | |
3533 | ||
3534 | flags = start_flags; | |
3535 | break; | |
3536 | ||
3537 | case YYEOF: | |
3538 | return 1; | |
3539 | ||
3540 | case '}': | |
3541 | return 0; | |
69bfc389 | 3542 | |
be0dbdab | 3543 | default: |
8bef35f2 | 3544 | declaration (flags); |
be0dbdab GM |
3545 | flags = start_flags; |
3546 | break; | |
3547 | } | |
3548 | ||
3549 | if (prev_in == in) | |
e6a0814f | 3550 | yyerror ("parse error", NULL); |
be0dbdab GM |
3551 | } |
3552 | } | |
3553 | ||
3554 | ||
3555 | /* Parse the current input file. */ | |
3556 | ||
3557 | void | |
3558 | yyparse () | |
3559 | { | |
3560 | while (globals (0) == 0) | |
3561 | MATCH_IF ('}'); | |
3562 | } | |
3563 | ||
3564 | ||
3565 | \f | |
3566 | /*********************************************************************** | |
3567 | Main Program | |
3568 | ***********************************************************************/ | |
3569 | ||
3570 | /* Add the list of paths PATH_LIST to the current search path for | |
3571 | input files. */ | |
3572 | ||
3573 | void | |
3574 | add_search_path (path_list) | |
3575 | char *path_list; | |
3576 | { | |
3577 | while (*path_list) | |
3578 | { | |
3579 | char *start = path_list; | |
3580 | struct search_path *p; | |
69bfc389 | 3581 | |
be0dbdab GM |
3582 | while (*path_list && *path_list != PATH_LIST_SEPARATOR) |
3583 | ++path_list; | |
69bfc389 | 3584 | |
c43a1ff6 GM |
3585 | p = (struct search_path *) xmalloc (sizeof *p); |
3586 | p->path = (char *) xmalloc (path_list - start + 1); | |
be0dbdab GM |
3587 | memcpy (p->path, start, path_list - start); |
3588 | p->path[path_list - start] = '\0'; | |
3589 | p->next = NULL; | |
3590 | ||
3591 | if (search_path_tail) | |
3592 | { | |
3593 | search_path_tail->next = p; | |
3594 | search_path_tail = p; | |
3595 | } | |
3596 | else | |
3597 | search_path = search_path_tail = p; | |
3598 | ||
3599 | while (*path_list == PATH_LIST_SEPARATOR) | |
3600 | ++path_list; | |
3601 | } | |
3602 | } | |
3603 | ||
3604 | ||
3605 | /* Open FILE and return a file handle for it, or -1 if FILE cannot be | |
3606 | opened. Try to find FILE in search_path first, then try the | |
3607 | unchanged file name. */ | |
3608 | ||
3609 | FILE * | |
3610 | open_file (file) | |
3611 | char *file; | |
3612 | { | |
3613 | FILE *fp = NULL; | |
3614 | static char *buffer; | |
3615 | static int buffer_size; | |
3616 | struct search_path *path; | |
fd72561d | 3617 | int flen = strlen (file) + 1; /* +1 for the slash */ |
69bfc389 | 3618 | |
be0dbdab GM |
3619 | filename = xstrdup (file); |
3620 | ||
3621 | for (path = search_path; path && fp == NULL; path = path->next) | |
3622 | { | |
fd72561d | 3623 | int len = strlen (path->path) + flen; |
be0dbdab GM |
3624 | |
3625 | if (len + 1 >= buffer_size) | |
3626 | { | |
3627 | buffer_size = max (len + 1, 2 * buffer_size); | |
c43a1ff6 | 3628 | buffer = (char *) xrealloc (buffer, buffer_size); |
be0dbdab | 3629 | } |
69bfc389 | 3630 | |
be0dbdab GM |
3631 | strcpy (buffer, path->path); |
3632 | strcat (buffer, "/"); | |
3633 | strcat (buffer, file); | |
3634 | fp = fopen (buffer, "r"); | |
3635 | } | |
69bfc389 | 3636 | |
be0dbdab GM |
3637 | /* Try the original file name. */ |
3638 | if (fp == NULL) | |
3639 | fp = fopen (file, "r"); | |
3640 | ||
3641 | if (fp == NULL) | |
e6a0814f | 3642 | yyerror ("cannot open", NULL); |
69bfc389 | 3643 | |
be0dbdab GM |
3644 | return fp; |
3645 | } | |
3646 | ||
3647 | ||
3648 | /* Display usage information and exit program. */ | |
3649 | ||
3650 | #define USAGE "\ | |
3651 | Usage: ebrowse [options] {files}\n\ | |
3652 | \n\ | |
8e4b384e | 3653 | -a, --append append output to existing file\n\ |
be0dbdab GM |
3654 | -f, --files=FILES read input file names from FILE\n\ |
3655 | -I, --search-path=LIST set search path for input files\n\ | |
3656 | -m, --min-regexp-length=N set minimum regexp length to N\n\ | |
3657 | -M, --max-regexp-length=N set maximum regexp length to N\n\ | |
3658 | -n, --no-nested-classes exclude nested classes\n\ | |
3659 | -o, --output-file=FILE set output file name to FILE\n\ | |
3660 | -p, --position-info print info about position in file\n\ | |
3661 | -s, --no-structs-or-unions don't record structs or unions\n\ | |
3662 | -v, --verbose be verbose\n\ | |
3663 | -V, --very-verbose be very verbose\n\ | |
3664 | -x, --no-regexps don't record regular expressions\n\ | |
3665 | --help display this help\n\ | |
3666 | --version display version info\n\ | |
3667 | " | |
3668 | ||
3669 | void | |
3670 | usage (error) | |
3671 | int error; | |
3672 | { | |
3673 | puts (USAGE); | |
65396510 | 3674 | exit (error ? EXIT_FAILURE : EXIT_SUCCESS); |
be0dbdab GM |
3675 | } |
3676 | ||
3677 | ||
3678 | /* Display version and copyright info. The VERSION macro is set | |
3679 | from the Makefile and contains the Emacs version. */ | |
3680 | ||
2fe9a71c AI |
3681 | #ifndef VERSION |
3682 | # define VERSION "21" | |
3683 | #endif | |
3684 | ||
be0dbdab GM |
3685 | void |
3686 | version () | |
3687 | { | |
3688 | printf ("ebrowse %s\n", VERSION); | |
407094f4 | 3689 | puts ("Copyright (C) 1992-1999, 2000, 2001 Free Software Foundation, Inc."); |
be0dbdab | 3690 | puts ("This program is distributed under the same terms as Emacs."); |
65396510 | 3691 | exit (EXIT_SUCCESS); |
be0dbdab GM |
3692 | } |
3693 | ||
3694 | ||
3695 | /* Parse one input file FILE, adding classes and members to the symbol | |
3696 | table. */ | |
3697 | ||
3698 | void | |
3699 | process_file (file) | |
3700 | char *file; | |
3701 | { | |
3702 | FILE *fp; | |
69bfc389 | 3703 | |
be0dbdab GM |
3704 | fp = open_file (file); |
3705 | if (fp) | |
69bfc389 | 3706 | { |
be0dbdab GM |
3707 | int nread, nbytes; |
3708 | ||
3709 | /* Give a progress indication if needed. */ | |
3710 | if (f_very_verbose) | |
3711 | { | |
3712 | puts (filename); | |
3713 | fflush (stdout); | |
3714 | } | |
3715 | else if (f_verbose) | |
3716 | { | |
3717 | putchar ('.'); | |
3718 | fflush (stdout); | |
3719 | } | |
3720 | ||
3721 | /* Read file to inbuffer. */ | |
3722 | for (nread = 0;;) | |
3723 | { | |
3724 | if (nread + READ_CHUNK_SIZE >= inbuffer_size) | |
3725 | { | |
3726 | inbuffer_size = nread + READ_CHUNK_SIZE + 1; | |
c43a1ff6 | 3727 | inbuffer = (char *) xrealloc (inbuffer, inbuffer_size); |
be0dbdab | 3728 | } |
69bfc389 | 3729 | |
be0dbdab | 3730 | nbytes = fread (inbuffer + nread, 1, READ_CHUNK_SIZE, fp); |
fd72561d | 3731 | if (nbytes <= 0) |
be0dbdab | 3732 | break; |
fd72561d | 3733 | nread += nbytes; |
be0dbdab | 3734 | } |
fd72561d EZ |
3735 | if (nread < 0) |
3736 | nread = 0; | |
be0dbdab GM |
3737 | inbuffer[nread] = '\0'; |
3738 | ||
3739 | /* Reinitialize scanner and parser for the new input file. */ | |
3740 | re_init_scanner (); | |
3741 | re_init_parser (); | |
3742 | ||
3743 | /* Parse it and close the file. */ | |
3744 | yyparse (); | |
3745 | fclose (fp); | |
3746 | } | |
3747 | } | |
3748 | ||
3749 | ||
3750 | /* Read a line from stream FP and return a pointer to a static buffer | |
3751 | containing its contents without the terminating newline. Value | |
3752 | is null when EOF is reached. */ | |
3753 | ||
3754 | char * | |
3755 | read_line (fp) | |
3756 | FILE *fp; | |
3757 | { | |
3758 | static char *buffer; | |
3759 | static int buffer_size; | |
3760 | int i = 0, c; | |
3761 | ||
3762 | while ((c = getc (fp)) != EOF && c != '\n') | |
3763 | { | |
3764 | if (i >= buffer_size) | |
3765 | { | |
3766 | buffer_size = max (100, buffer_size * 2); | |
c43a1ff6 | 3767 | buffer = (char *) xrealloc (buffer, buffer_size); |
be0dbdab GM |
3768 | } |
3769 | ||
3770 | buffer[i++] = c; | |
3771 | } | |
69bfc389 | 3772 | |
be0dbdab GM |
3773 | if (c == EOF && i == 0) |
3774 | return NULL; | |
69bfc389 | 3775 | |
be0dbdab GM |
3776 | if (i == buffer_size) |
3777 | { | |
3778 | buffer_size = max (100, buffer_size * 2); | |
c43a1ff6 | 3779 | buffer = (char *) xrealloc (buffer, buffer_size); |
be0dbdab GM |
3780 | } |
3781 | ||
3782 | buffer[i] = '\0'; | |
1727db8c GM |
3783 | if (i > 0 && buffer[i - 1] == '\r') |
3784 | buffer[i - 1] = '\0'; | |
be0dbdab GM |
3785 | return buffer; |
3786 | } | |
3787 | ||
3788 | ||
3789 | /* Main entry point. */ | |
3790 | ||
3791 | int | |
3792 | main (argc, argv) | |
3793 | int argc; | |
3794 | char **argv; | |
3795 | { | |
3796 | int i; | |
3797 | int any_inputfiles = 0; | |
3798 | static char *out_filename = DEFAULT_OUTFILE; | |
3799 | static char **input_filenames = NULL; | |
3800 | static int input_filenames_size = 0; | |
3801 | static int n_input_files; | |
3802 | ||
3803 | filename = "command line"; | |
3804 | yyout = stdout; | |
3805 | ||
3806 | while ((i = getopt_long (argc, argv, "af:I:m:M:no:p:svVx", | |
3807 | options, NULL)) != EOF) | |
3808 | { | |
3809 | switch (i) | |
3810 | { | |
3811 | /* Experimental. */ | |
3812 | case 'p': | |
3813 | info_position = atoi (optarg); | |
3814 | break; | |
69bfc389 | 3815 | |
be0dbdab GM |
3816 | case 'n': |
3817 | f_nested_classes = 0; | |
3818 | break; | |
3819 | ||
3820 | case 'x': | |
3821 | f_regexps = 0; | |
3822 | break; | |
69bfc389 | 3823 | |
be0dbdab GM |
3824 | /* Add the name of a file containing more input files. */ |
3825 | case 'f': | |
3826 | if (n_input_files == input_filenames_size) | |
3827 | { | |
3828 | input_filenames_size = max (10, 2 * input_filenames_size); | |
3a57e866 | 3829 | input_filenames = (char **) xrealloc ((void *)input_filenames, |
be0dbdab GM |
3830 | input_filenames_size); |
3831 | } | |
3832 | input_filenames[n_input_files++] = xstrdup (optarg); | |
3833 | break; | |
3834 | ||
3835 | /* Append new output to output file instead of truncating it. */ | |
3836 | case 'a': | |
3837 | f_append = 1; | |
3838 | break; | |
3839 | ||
3840 | /* Include structs in the output */ | |
3841 | case 's': | |
3842 | f_structs = 0; | |
3843 | break; | |
3844 | ||
3845 | /* Be verbose (give a progress indication). */ | |
3846 | case 'v': | |
3847 | f_verbose = 1; | |
3848 | break; | |
3849 | ||
3850 | /* Be very verbose (print file names as they are processed). */ | |
3851 | case 'V': | |
3852 | f_verbose = 1; | |
3853 | f_very_verbose = 1; | |
3854 | break; | |
3855 | ||
3856 | /* Change the name of the output file. */ | |
3857 | case 'o': | |
3858 | out_filename = optarg; | |
3859 | break; | |
3860 | ||
3861 | /* Set minimum length for regular expression strings | |
3862 | when recorded in the output file. */ | |
3863 | case 'm': | |
3864 | min_regexp = atoi (optarg); | |
3865 | break; | |
3866 | ||
3867 | /* Set maximum length for regular expression strings | |
3868 | when recorded in the output file. */ | |
3869 | case 'M': | |
3870 | max_regexp = atoi (optarg); | |
3871 | break; | |
3872 | ||
3873 | /* Add to search path. */ | |
3874 | case 'I': | |
3875 | add_search_path (optarg); | |
3876 | break; | |
3877 | ||
3878 | /* Display help */ | |
3879 | case -2: | |
3880 | usage (0); | |
3881 | break; | |
3882 | ||
3883 | case -3: | |
3884 | version (); | |
3885 | break; | |
3886 | } | |
3887 | } | |
3888 | ||
3889 | /* Call init_scanner after command line flags have been processed to be | |
3890 | able to add keywords depending on command line (not yet | |
3891 | implemented). */ | |
3892 | init_scanner (); | |
3893 | init_sym (); | |
3894 | ||
3895 | /* Open output file */ | |
3896 | if (*out_filename) | |
3897 | { | |
8e4b384e GM |
3898 | if (f_append) |
3899 | { | |
3900 | /* Check that the file to append to exists, and is not | |
3901 | empty. More specifically, it should be a valid file | |
a10192f4 | 3902 | produced by a previous run of ebrowse, but that's too |
8e4b384e GM |
3903 | difficult to check. */ |
3904 | FILE *fp; | |
3905 | int rc; | |
3906 | ||
3907 | fp = fopen (out_filename, "r"); | |
3908 | if (fp == NULL) | |
3909 | yyerror ("file `%s' must exist for --append", out_filename); | |
3910 | ||
3911 | rc = fseek (fp, 0, SEEK_END); | |
3912 | if (rc == -1) | |
3913 | yyerror ("error seeking in file `%s'", out_filename); | |
3914 | ||
3915 | rc = ftell (fp); | |
3916 | if (rc == -1) | |
3917 | yyerror ("error getting size of file `%s'", out_filename); | |
3918 | else if (rc == 0) | |
3919 | yyerror ("file `%s' is empty", out_filename); | |
69bfc389 | 3920 | |
8e4b384e GM |
3921 | fclose (fp); |
3922 | } | |
69bfc389 | 3923 | |
be0dbdab GM |
3924 | yyout = fopen (out_filename, f_append ? "a" : "w"); |
3925 | if (yyout == NULL) | |
3926 | { | |
e6a0814f | 3927 | yyerror ("cannot open output file `%s'", out_filename); |
65396510 | 3928 | exit (EXIT_FAILURE); |
be0dbdab GM |
3929 | } |
3930 | } | |
3931 | ||
3932 | /* Process input files specified on the command line. */ | |
3933 | while (optind < argc) | |
3934 | { | |
3935 | process_file (argv[optind++]); | |
3936 | any_inputfiles = 1; | |
3937 | } | |
3938 | ||
3939 | /* Process files given on stdin if no files specified. */ | |
3940 | if (!any_inputfiles && n_input_files == 0) | |
3941 | { | |
3942 | char *file; | |
3943 | while ((file = read_line (stdin)) != NULL) | |
3944 | process_file (file); | |
3945 | } | |
3946 | else | |
3947 | { | |
3948 | /* Process files from `--files=FILE'. Every line in FILE names | |
3949 | one input file to process. */ | |
3950 | for (i = 0; i < n_input_files; ++i) | |
3951 | { | |
3952 | FILE *fp = fopen (input_filenames[i], "r"); | |
69bfc389 | 3953 | |
be0dbdab | 3954 | if (fp == NULL) |
e6a0814f | 3955 | yyerror ("cannot open input file `%s'", input_filenames[i]); |
be0dbdab GM |
3956 | else |
3957 | { | |
3958 | char *file; | |
3959 | while ((file = read_line (fp)) != NULL) | |
3960 | process_file (file); | |
3961 | fclose (fp); | |
3962 | } | |
3963 | } | |
3964 | } | |
3965 | ||
3966 | /* Write output file. */ | |
3967 | dump_roots (yyout); | |
3968 | ||
3969 | /* Close output file. */ | |
3970 | if (yyout != stdout) | |
3971 | fclose (yyout); | |
3972 | ||
65396510 | 3973 | return EXIT_SUCCESS; |
be0dbdab GM |
3974 | } |
3975 | ||
ab5796a9 MB |
3976 | /* arch-tag: fc03b4bc-91a9-4c3d-b3b9-12a77fa86dd8 |
3977 | (do not change this comment) */ | |
65396510 TTN |
3978 | |
3979 | /* ebrowse.c ends here */ |