428
+ − 1 /* Tags file maker to go with GNU Emacs
+ − 2 Copyright (C) 1984, 87, 88, 89, 93, 94, 95
+ − 3 Free Software Foundation, Inc. and Ken Arnold
+ − 4
+ − 5 This file is not considered part of GNU Emacs.
+ − 6
+ − 7 This program is free software; you can redistribute it and/or modify
+ − 8 it under the terms of the GNU General Public License as published by
+ − 9 the Free Software Foundation; either version 2 of the License, or
+ − 10 (at your option) any later version.
+ − 11
+ − 12 This program is distributed in the hope that it will be useful,
+ − 13 but WITHOUT ANY WARRANTY; without even the implied warranty of
+ − 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ − 15 GNU General Public License for more details.
+ − 16
+ − 17 You should have received a copy of the GNU General Public License
+ − 18 along with this program; if not, write to the Free Software Foundation,
+ − 19 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ − 20
+ − 21 /*
+ − 22 * Authors:
+ − 23 * Ctags originally by Ken Arnold.
+ − 24 * Fortran added by Jim Kleckner.
+ − 25 * Ed Pelegri-Llopart added C typedefs.
+ − 26 * Gnu Emacs TAGS format and modifications by RMS?
+ − 27 * Sam Kendall added C++.
+ − 28 * Francesco Potorti` reorganised C and C++ based on work by Joe Wells.
+ − 29 * Regexp tags by Tom Tromey.
+ − 30 *
+ − 31 * Francesco Potorti` (F.Potorti@cnuce.cnr.it) is the current maintainer.
+ − 32 */
+ − 33
+ − 34 char pot_etags_version[] = "@(#) pot revision number is 12.28";
+ − 35
+ − 36 /* Prototyping magic snarfed from gmalloc.c */
+ − 37 #if defined (__cplusplus) || defined (__STDC__)
+ − 38 #undef PP
+ − 39 #define PP(args) args
+ − 40 #undef __ptr_t
+ − 41 #define __ptr_t void *
+ − 42 #else /* Not C++ or ANSI C. */
+ − 43 #undef PP
+ − 44 #define PP(args) ()
+ − 45 #undef const
+ − 46 #define const
+ − 47 #undef __ptr_t
+ − 48 #define __ptr_t char *
+ − 49 #endif /* C++ or ANSI C. */
+ − 50
+ − 51 #ifdef HAVE_CONFIG_H
+ − 52 # include <config.h>
+ − 53 /* On some systems, Emacs defines static as nothing for the sake
+ − 54 of unexec. We don't want that here since we don't use unexec. */
+ − 55 # undef static
+ − 56 # define ETAGS_REGEXPS /* use the regexp features */
+ − 57 # define LONG_OPTIONS /* accept long options */
+ − 58 #endif /* HAVE_CONFIG_H */
+ − 59
+ − 60 #define TRUE 1
+ − 61 #define FALSE 0
+ − 62
+ − 63 #ifndef DEBUG
+ − 64 # define DEBUG FALSE
+ − 65 #endif
+ − 66
442
+ − 67 #ifdef WIN32_NATIVE
428
+ − 68 # include <stdlib.h>
+ − 69 # include <fcntl.h>
+ − 70 # include <string.h>
+ − 71 # include <io.h>
+ − 72 # define MAXPATHLEN _MAX_PATH
442
+ − 73 # ifndef HAVE_CONFIG_H
428
+ − 74 # define HAVE_GETCWD
+ − 75 # endif /* not HAVE_CONFIG_H */
442
+ − 76 #endif /* WIN32_NATIVE */
+ − 77
+ − 78 #if !defined (WIN32_NATIVE) && defined (STDC_HEADERS)
428
+ − 79 #include <stdlib.h>
+ − 80 #include <string.h>
+ − 81 #endif
+ − 82
+ − 83 #ifdef HAVE_UNISTD_H
+ − 84 # include <unistd.h>
+ − 85 #else
+ − 86 # ifdef HAVE_GETCWD
+ − 87 extern char *getcwd ();
+ − 88 # endif
+ − 89 #endif /* HAVE_UNISTD_H */
+ − 90
+ − 91 #include <stdio.h>
+ − 92 #include <ctype.h>
+ − 93 #include <errno.h>
+ − 94 #include <sys/types.h>
+ − 95 #include <sys/stat.h>
+ − 96
+ − 97 #if !defined (S_ISREG) && defined (S_IFREG)
+ − 98 # define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+ − 99 #endif
+ − 100
+ − 101 #ifdef LONG_OPTIONS
+ − 102 # include <getopt.h>
+ − 103 #else
+ − 104 # define getopt_long(argc,argv,optstr,lopts,lind) getopt (argc, argv, optstr)
+ − 105 extern char *optarg;
+ − 106 extern int optind, opterr;
+ − 107 #endif /* LONG_OPTIONS */
+ − 108
+ − 109 #ifdef ETAGS_REGEXPS
+ − 110 # include <regex.h>
+ − 111 #endif /* ETAGS_REGEXPS */
+ − 112
+ − 113 /* Define CTAGS to make the program "ctags" compatible with the usual one.
+ − 114 Leave it undefined to make the program "etags", which makes emacs-style
+ − 115 tag tables and tags typedefs, #defines and struct/union/enum by default. */
+ − 116 #ifdef CTAGS
+ − 117 # undef CTAGS
+ − 118 # define CTAGS TRUE
+ − 119 #else
+ − 120 # define CTAGS FALSE
+ − 121 #endif
+ − 122
+ − 123 /* Exit codes for success and failure. */
+ − 124 #ifdef VMS
+ − 125 # define GOOD 1
+ − 126 # define BAD 0
+ − 127 #else
+ − 128 # define GOOD 0
+ − 129 # define BAD 1
+ − 130 #endif
+ − 131
+ − 132 /* C extensions. */
+ − 133 #define C_PLPL 0x00001 /* C++ */
+ − 134 #define C_STAR 0x00003 /* C* */
+ − 135 #define C_JAVA 0x00005 /* JAVA */
+ − 136 #define YACC 0x10000 /* yacc file */
+ − 137
+ − 138 #define streq(s,t) ((DEBUG && (s) == NULL && (t) == NULL \
+ − 139 && (abort (), 1)) || !strcmp (s, t))
+ − 140 #define strneq(s,t,n) ((DEBUG && (s) == NULL && (t) == NULL \
+ − 141 && (abort (), 1)) || !strncmp (s, t, n))
+ − 142
+ − 143 #define lowcase(c) tolower ((char)c)
+ − 144
+ − 145 #define CHARS 256 /* 2^sizeof(char) */
+ − 146 #define CHAR(x) ((unsigned int)x & (CHARS - 1))
+ − 147 #define iswhite(c) (_wht[CHAR(c)]) /* c is white */
+ − 148 #define notinname(c) (_nin[CHAR(c)]) /* c is not in a name */
+ − 149 #define begtoken(c) (_btk[CHAR(c)]) /* c can start token */
+ − 150 #define intoken(c) (_itk[CHAR(c)]) /* c can be in token */
+ − 151 #define endtoken(c) (_etk[CHAR(c)]) /* c ends tokens */
+ − 152
+ − 153 /*#ifdef INFODOCK*/
+ − 154 /*#undef OO_BROWSER*/
+ − 155 /* Due to the way this file is constructed, this unfortunately doesn't */
+ − 156 /* work except for documentation purposes. -slb */
+ − 157 #define OO_BROWSER 1
+ − 158 /*#endif*/
+ − 159
+ − 160 #ifdef OO_BROWSER
+ − 161 #define set_construct(construct) \
+ − 162 if (!oo_browser_construct) oo_browser_construct = construct
438
+ − 163 void oo_browser_clear_all_globals(void);
+ − 164 void oo_browser_clear_some_globals(void);
+ − 165 void oo_browser_check_and_clear_structtype(void);
428
+ − 166 #endif
+ − 167
+ − 168 /*
+ − 169 * xnew, xrnew -- allocate, reallocate storage
+ − 170 *
+ − 171 * SYNOPSIS: Type *xnew (int n, Type);
+ − 172 * Type *xrnew (OldPointer, int n, Type);
+ − 173 */
+ − 174 #ifdef chkmalloc
+ − 175 # include "chkmalloc.h"
+ − 176 # define xnew(n,Type) ((Type *) trace_malloc (__FILE__, __LINE__, \
+ − 177 (n) * sizeof (Type)))
+ − 178 # define xrnew(op,n,Type) ((Type *) trace_realloc (__FILE__, __LINE__, \
+ − 179 (op), (n) * sizeof (Type)))
+ − 180 #else
+ − 181 # define xnew(n,Type) ((Type *) xmalloc ((n) * sizeof (Type)))
+ − 182 # define xrnew(op,n,Type) ((Type *) xrealloc ((op), (n) * sizeof (Type)))
+ − 183 #endif
+ − 184
+ − 185 typedef int bool;
+ − 186
438
+ − 187 typedef void Lang_function (FILE *);
428
+ − 188
+ − 189 typedef struct
+ − 190 {
+ − 191 char *name;
+ − 192 Lang_function *function;
+ − 193 char **suffixes;
+ − 194 char **interpreters;
+ − 195 } language;
+ − 196
+ − 197 typedef struct node_st
+ − 198 { /* sorting structure */
+ − 199 char *name; /* function or type name */
+ − 200 #ifdef OO_BROWSER
+ − 201 short int construct; /* Construct type for the OO-Browser */
+ − 202 #endif
+ − 203 char *file; /* file name */
+ − 204 bool is_func; /* use pattern or line no */
+ − 205 bool been_warned; /* set if noticed dup */
+ − 206 int lno; /* line number tag is on */
+ − 207 long cno; /* character number line starts on */
+ − 208 char *pat; /* search pattern */
+ − 209 struct node_st *left, *right; /* left and right sons */
+ − 210 } node;
+ − 211
+ − 212 #ifdef OO_BROWSER
+ − 213 /* If you add to this array, you must add a corresponding entry to the
+ − 214 following enum. */
+ − 215 static char *oo_browser_default_classes[] =
+ − 216 /* Lack of square brackets around some of these entries are intentional. */
+ − 217 {"null", "class", "method", "[constant]", "[enumeration]", "[enum_label]",
+ − 218 "extern", "[function]", "[macro]", "objc", "[structure]", "[type]",
+ − 219 "[union]", "[variable]"};
+ − 220
+ − 221 /* If you add to this enum, you must add a corresponding entry to the
+ − 222 preceding array. */
+ − 223 enum oo_browser_constructs {C_NULL, C_CLASS, C_METHOD, C_CONSTANT, C_ENUMERATION,
+ − 224 C_ENUM_LABEL, C_EXTERN, C_FUNCTION, C_MACRO,
+ − 225 C_OBJC, C_STRUCTURE, C_TYPE, C_UNION, C_VARIABLE};
+ − 226
+ − 227 enum oo_browser_constructs oo_browser_construct = C_NULL;
+ − 228 #endif
+ − 229
+ − 230 /*
+ − 231 * A `linebuffer' is a structure which holds a line of text.
+ − 232 * `readline_internal' reads a line from a stream into a linebuffer
+ − 233 * and works regardless of the length of the line.
+ − 234 * SIZE is the size of BUFFER, LEN is the length of the string in
+ − 235 * BUFFER after readline reads it.
+ − 236 */
+ − 237 typedef struct
+ − 238 {
+ − 239 long size;
+ − 240 int len;
+ − 241 char *buffer;
+ − 242 } linebuffer;
+ − 243
+ − 244 extern char *getenv PP ((const char *envvar));
+ − 245
+ − 246 /* Many compilers barf on this:
+ − 247 Lang_function Asm_labels;
+ − 248 so let's write it this way */
+ − 249 void Asm_labels PP ((FILE *inf));
+ − 250 void C_entries PP ((int c_ext, FILE *inf));
+ − 251 void default_C_entries PP ((FILE *inf));
+ − 252 void plain_C_entries PP ((FILE *inf));
+ − 253 void Cjava_entries PP ((FILE *inf));
+ − 254 void Cplusplus_entries PP ((FILE *inf));
+ − 255 void Yacc_entries PP ((FILE *inf));
+ − 256 void Cobol_paragraphs PP ((FILE *inf));
+ − 257 void Cstar_entries PP ((FILE *inf));
+ − 258 void Erlang_functions PP ((FILE *inf));
+ − 259 void Fortran_functions PP ((FILE *inf));
+ − 260 void Lisp_functions PP ((FILE *inf));
+ − 261 void Pascal_functions PP ((FILE *inf));
+ − 262 void Perl_functions PP ((FILE *inf));
+ − 263 void Postscript_functions PP ((FILE *inf));
+ − 264 void Prolog_functions PP ((FILE *inf));
+ − 265 void Python_functions PP ((FILE *inf));
+ − 266 void Scheme_functions PP ((FILE *inf));
+ − 267 void TeX_functions PP ((FILE *inf));
+ − 268 void just_read_file PP ((FILE *inf));
+ − 269
+ − 270 void print_language_names PP ((void));
+ − 271 void print_version PP ((void));
+ − 272 void print_help PP ((void));
+ − 273
+ − 274 language *get_language_from_name PP ((char *name));
+ − 275 language *get_language_from_interpreter PP ((char *interpreter));
+ − 276 language *get_language_from_suffix PP ((char *suffix));
+ − 277 int total_size_of_entries PP ((node *np));
+ − 278 long readline PP ((linebuffer *lbp, FILE *stream));
+ − 279 long readline_internal PP ((linebuffer *lbp, FILE *stream));
+ − 280 #ifdef ETAGS_REGEXPS
+ − 281 void analyse_regex PP ((char *regex_arg));
+ − 282 void add_regex PP ((char *regexp_pattern, language *lang));
+ − 283 void free_patterns PP ((void));
+ − 284 #endif /* ETAGS_REGEXPS */
+ − 285 void error PP ((const char *s1, const char *s2));
+ − 286 void suggest_asking_for_help PP ((void));
+ − 287 void fatal PP ((char *s1, char *s2));
+ − 288 void pfatal PP ((char *s1));
+ − 289 void add_node PP ((node *np, node **cur_node_p));
+ − 290
+ − 291 void init PP ((void));
+ − 292 void initbuffer PP ((linebuffer *lbp));
+ − 293 void find_entries PP ((char *file, FILE *inf));
+ − 294 void free_tree PP ((node *np));
+ − 295 void pfnote PP ((char *name, bool is_func, char *linestart, int linelen, int lno, long cno));
+ − 296 void new_pfnote PP ((char *name, int namelen, bool is_func, char *linestart, int linelen, int lno, long cno));
+ − 297 void process_file PP ((char *file));
+ − 298 void put_entries PP ((node *np));
+ − 299 void takeprec PP ((void));
+ − 300
+ − 301 char *concat PP ((char *s1, char *s2, char *s3));
+ − 302 char *skip_spaces PP ((char *cp));
+ − 303 char *skip_non_spaces PP ((char *cp));
+ − 304 char *savenstr PP ((char *cp, int len));
+ − 305 char *savestr PP ((char *cp));
+ − 306 char *etags_strchr PP ((char *sp, int c));
+ − 307 char *etags_strrchr PP ((char *sp, int c));
+ − 308 char *etags_getcwd PP ((void));
+ − 309 char *relative_filename PP ((char *file, char *dir));
+ − 310 char *absolute_filename PP ((char *file, char *dir));
+ − 311 char *absolute_dirname PP ((char *file, char *dir));
+ − 312 bool filename_is_absolute PP ((char *fn));
+ − 313 void canonicalize_filename PP ((char *fn));
+ − 314 void grow_linebuffer PP ((linebuffer *lbp, int toksize));
+ − 315 long *xmalloc PP ((unsigned int size));
+ − 316 long *xrealloc PP ((char *ptr, unsigned int size));
+ − 317
+ − 318
+ − 319 char searchar = '/'; /* use /.../ searches */
+ − 320
+ − 321 char *tagfile; /* output file */
+ − 322 char *progname; /* name this program was invoked with */
+ − 323 char *cwd; /* current working directory */
+ − 324 char *tagfiledir; /* directory of tagfile */
+ − 325 FILE *tagf; /* ioptr for tags file */
+ − 326
+ − 327 char *curfile; /* current input file name */
+ − 328 language *curlang; /* current language */
+ − 329
+ − 330 int lineno; /* line number of current line */
+ − 331 long charno; /* current character number */
+ − 332 long linecharno; /* charno of start of current line */
+ − 333 char *dbp; /* pointer to start of current tag */
+ − 334 node *head; /* the head of the binary tree of tags */
+ − 335
+ − 336 linebuffer lb; /* the current line */
+ − 337 linebuffer token_name; /* used by C_entries as a temporary area */
+ − 338 struct
+ − 339 {
+ − 340 long linepos;
+ − 341 linebuffer lb; /* used by C_entries instead of lb */
+ − 342 } lbs[2];
+ − 343
+ − 344 /* boolean "functions" (see init) */
+ − 345 bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS];
+ − 346 char
+ − 347 /* white chars */
+ − 348 *white = " \f\t\n\r",
+ − 349 /* not in a name */
+ − 350 *nonam = " \f\t\n\r(=,[;",
+ − 351 /* token ending chars */
+ − 352 *endtk = " \t\n\r\"'#()[]{}=-+%*/&|^~!<>;,.:?",
+ − 353 /* token starting chars */
+ − 354 *begtk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$~@",
+ − 355 /* valid in-token chars */
+ − 356 *midtk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$0123456789";
+ − 357
+ − 358 bool append_to_tagfile; /* -a: append to tags */
+ − 359 /* The following four default to TRUE for etags, but to FALSE for ctags. */
+ − 360 bool typedefs; /* -t: create tags for C typedefs */
+ − 361 bool typedefs_and_cplusplus; /* -T: create tags for C typedefs, level */
+ − 362 /* 0 struct/enum/union decls, and C++ */
+ − 363 /* member functions. */
+ − 364 bool constantypedefs; /* -d: create tags for C #define, enum */
+ − 365 /* constants and variables. */
+ − 366 /* -D: opposite of -d. Default under ctags. */
+ − 367 bool globals; /* create tags for global variables */
+ − 368 bool members; /* create tags for C member variables */
+ − 369 bool update; /* -u: update tags */
+ − 370 bool vgrind_style; /* -v: create vgrind style index output */
+ − 371 bool no_warnings; /* -w: suppress warnings */
+ − 372 bool cxref_style; /* -x: create cxref style output */
+ − 373 bool cplusplus; /* .[hc] means C++, not C */
+ − 374 bool noindentypedefs; /* -I: ignore indentation in C */
+ − 375 #ifdef OO_BROWSER
+ − 376 bool oo_browser_format; /* -O: OO-Browser tags format */
+ − 377 #endif
+ − 378
+ − 379 #ifdef LONG_OPTIONS
+ − 380 struct option longopts[] =
+ − 381 {
+ − 382 { "append", no_argument, NULL, 'a' },
+ − 383 { "backward-search", no_argument, NULL, 'B' },
+ − 384 { "c++", no_argument, NULL, 'C' },
+ − 385 { "cxref", no_argument, NULL, 'x' },
+ − 386 { "defines", no_argument, NULL, 'd' },
+ − 387 { "no-defines", no_argument, NULL, 'D' },
+ − 388 { "globals", no_argument, &globals, TRUE },
+ − 389 { "no-globals", no_argument, &globals, FALSE },
+ − 390 { "help", no_argument, NULL, 'h' },
+ − 391 { "help", no_argument, NULL, 'H' },
+ − 392 { "ignore-indentation", no_argument, NULL, 'I' },
+ − 393 { "include", required_argument, NULL, 'i' },
+ − 394 { "language", required_argument, NULL, 'l' },
+ − 395 { "members", no_argument, &members, TRUE },
+ − 396 { "no-members", no_argument, &members, FALSE },
+ − 397 { "no-warn", no_argument, NULL, 'w' },
+ − 398 { "output", required_argument, NULL, 'o' },
+ − 399 #ifdef OO_BROWSER
+ − 400 { "oo-browser", no_argument, NULL, 'O' },
+ − 401 #endif
+ − 402 #ifdef ETAGS_REGEXPS
+ − 403 { "regex", required_argument, NULL, 'r' },
+ − 404 { "no-regex", no_argument, NULL, 'R' },
+ − 405 #endif /* ETAGS_REGEXPS */
+ − 406 { "typedefs", no_argument, NULL, 't' },
+ − 407 { "typedefs-and-c++", no_argument, NULL, 'T' },
+ − 408 { "update", no_argument, NULL, 'u' },
+ − 409 { "version", no_argument, NULL, 'V' },
+ − 410 { "vgrind", no_argument, NULL, 'v' },
+ − 411 { 0 }
+ − 412 };
+ − 413 #endif /* LONG_OPTIONS */
+ − 414
+ − 415 #ifdef ETAGS_REGEXPS
+ − 416 /* Structure defining a regular expression. Elements are
+ − 417 the compiled pattern, and the name string. */
+ − 418 typedef struct pattern
+ − 419 {
+ − 420 struct pattern *p_next;
+ − 421 language *language;
+ − 422 char *regex;
+ − 423 struct re_pattern_buffer *pattern;
+ − 424 struct re_registers regs;
+ − 425 char *name_pattern;
+ − 426 bool error_signaled;
+ − 427 } pattern;
+ − 428
+ − 429 /* Array of all regexps. */
+ − 430 pattern *p_head = NULL;
+ − 431 #endif /* ETAGS_REGEXPS */
+ − 432
+ − 433 /*
+ − 434 * Language stuff.
+ − 435 */
+ − 436
+ − 437 /* Non-NULL if language fixed. */
+ − 438 language *forced_lang = NULL;
+ − 439
+ − 440 /* Assembly code */
+ − 441 char *Asm_suffixes [] = { "a", /* Unix assembler */
+ − 442 "asm", /* Microcontroller assembly */
+ − 443 "def", /* BSO/Tasking definition includes */
+ − 444 "inc", /* Microcontroller include files */
+ − 445 "ins", /* Microcontroller include files */
+ − 446 "s", "sa", /* Unix assembler */
+ − 447 "src", /* BSO/Tasking C compiler output */
+ − 448 NULL
+ − 449 };
+ − 450
+ − 451 /* Note that .c and .h can be considered C++, if the --c++ flag was
+ − 452 given. That is why default_C_entries is called here. */
+ − 453 char *default_C_suffixes [] =
+ − 454 { "c", "h", NULL };
+ − 455
+ − 456 char *Cplusplus_suffixes [] =
+ − 457 { "C", "H", "c++", "cc", "cpp", "cxx", "h++", "hh", "hpp", "hxx",
+ − 458 "M", /* Objective C++ */
+ − 459 "pdb", /* Postscript with C syntax */
+ − 460 NULL };
+ − 461
+ − 462 char *Cjava_suffixes [] =
+ − 463 { "java", NULL };
+ − 464
+ − 465 char *Cobol_suffixes [] =
+ − 466 { "COB", "cob", NULL };
+ − 467
+ − 468 char *Cstar_suffixes [] =
+ − 469 { "cs", "hs", NULL };
+ − 470
+ − 471 char *Erlang_suffixes [] =
+ − 472 { "erl", "hrl", NULL };
+ − 473
+ − 474 char *Fortran_suffixes [] =
+ − 475 { "F", "f", "f90", "for", NULL };
+ − 476
+ − 477 char *Lisp_suffixes [] =
+ − 478 { "cl", "clisp", "el", "l", "lisp", "lsp", "ml", NULL };
+ − 479
+ − 480 char *Pascal_suffixes [] =
+ − 481 { "p", "pas", NULL };
+ − 482
+ − 483 char *Perl_suffixes [] =
+ − 484 { "pl", "pm", NULL };
+ − 485 char *Perl_interpreters [] =
+ − 486 { "perl", "@PERL@", NULL };
+ − 487
+ − 488 char *plain_C_suffixes [] =
+ − 489 { "pc", /* Pro*C file */
+ − 490 "m", /* Objective C file */
+ − 491 "lm", /* Objective lex file */
+ − 492 NULL };
+ − 493
+ − 494 char *Postscript_suffixes [] =
+ − 495 { "ps", NULL };
+ − 496
+ − 497 char *Prolog_suffixes [] =
+ − 498 { "prolog", NULL };
+ − 499
+ − 500 char *Python_suffixes [] =
+ − 501 { "py", NULL };
+ − 502
+ − 503 /* Can't do the `SCM' or `scm' prefix with a version number. */
+ − 504 char *Scheme_suffixes [] =
+ − 505 { "SCM", "SM", "oak", "sch", "scheme", "scm", "sm", "ss", "t", NULL };
+ − 506
+ − 507 char *TeX_suffixes [] =
+ − 508 { "TeX", "bib", "clo", "cls", "ltx", "sty", "tex", NULL };
+ − 509
+ − 510 char *Yacc_suffixes [] =
+ − 511 { "y", "ym", NULL }; /* .ym is Objective yacc file */
+ − 512
+ − 513 /*
+ − 514 * Table of languages.
+ − 515 *
+ − 516 * It is ok for a given function to be listed under more than one
+ − 517 * name. I just didn't.
+ − 518 */
+ − 519
+ − 520 language lang_names [] =
+ − 521 {
+ − 522 { "asm", Asm_labels, Asm_suffixes, NULL },
+ − 523 { "c", default_C_entries, default_C_suffixes, NULL },
+ − 524 { "c++", Cplusplus_entries, Cplusplus_suffixes, NULL },
+ − 525 { "c*", Cstar_entries, Cstar_suffixes, NULL },
+ − 526 { "cobol", Cobol_paragraphs, Cobol_suffixes, NULL },
+ − 527 { "erlang", Erlang_functions, Erlang_suffixes, NULL },
+ − 528 { "fortran", Fortran_functions, Fortran_suffixes, NULL },
+ − 529 { "java", Cjava_entries, Cjava_suffixes, NULL },
+ − 530 { "lisp", Lisp_functions, Lisp_suffixes, NULL },
+ − 531 { "pascal", Pascal_functions, Pascal_suffixes, NULL },
+ − 532 { "perl", Perl_functions, Perl_suffixes, Perl_interpreters },
+ − 533 { "postscript", Postscript_functions, Postscript_suffixes, NULL },
+ − 534 { "proc", plain_C_entries, plain_C_suffixes, NULL },
+ − 535 { "prolog", Prolog_functions, Prolog_suffixes, NULL },
+ − 536 { "python", Python_functions, Python_suffixes, NULL },
+ − 537 { "scheme", Scheme_functions, Scheme_suffixes, NULL },
+ − 538 { "tex", TeX_functions, TeX_suffixes, NULL },
+ − 539 { "yacc", Yacc_entries, Yacc_suffixes, NULL },
+ − 540 { "auto", NULL }, /* default guessing scheme */
+ − 541 { "none", just_read_file }, /* regexp matching only */
+ − 542 { NULL, NULL } /* end of list */
+ − 543 };
+ − 544
+ − 545
+ − 546 void
+ − 547 print_language_names ()
+ − 548 {
+ − 549 language *lang;
+ − 550 char **ext;
+ − 551
+ − 552 puts ("\nThese are the currently supported languages, along with the\n\
+ − 553 default file name suffixes:");
+ − 554 for (lang = lang_names; lang->name != NULL; lang++)
+ − 555 {
+ − 556 printf ("\t%s\t", lang->name);
+ − 557 if (lang->suffixes != NULL)
+ − 558 for (ext = lang->suffixes; *ext != NULL; ext++)
+ − 559 printf (" .%s", *ext);
+ − 560 puts ("");
+ − 561 }
+ − 562 puts ("Where `auto' means use default language for files based on file\n\
+ − 563 name suffix, and `none' means only do regexp processing on files.\n\
+ − 564 If no language is specified and no matching suffix is found,\n\
+ − 565 the first line of the file is read for a sharp-bang (#!) sequence\n\
+ − 566 followed by the name of an interpreter. If no such sequence is found,\n\
+ − 567 Fortran is tried first; if no tags are found, C is tried next.");
+ − 568 }
+ − 569
+ − 570 #ifndef VERSION
+ − 571 # define VERSION "20"
+ − 572 #endif
+ − 573 void
+ − 574 print_version ()
+ − 575 {
+ − 576 printf ("%s (GNU Emacs %s)\n", (CTAGS) ? "ctags" : "etags", VERSION);
+ − 577 puts ("Copyright (C) 1996 Free Software Foundation, Inc. and Ken Arnold");
+ − 578 puts ("This program is distributed under the same terms as Emacs");
+ − 579
+ − 580 exit (GOOD);
+ − 581 }
+ − 582
+ − 583 void
+ − 584 print_help ()
+ − 585 {
+ − 586 printf ("Usage: %s [options] [[regex-option ...] file-name] ...\n\
+ − 587 \n\
+ − 588 These are the options accepted by %s.\n", progname, progname);
+ − 589 #ifdef LONG_OPTIONS
+ − 590 puts ("You may use unambiguous abbreviations for the long option names.");
+ − 591 #else
+ − 592 puts ("Long option names do not work with this executable, as it is not\n\
+ − 593 linked with GNU getopt.");
+ − 594 #endif /* LONG_OPTIONS */
+ − 595 puts ("A - as file name means read names from stdin (one per line).");
+ − 596 if (!CTAGS)
+ − 597 printf (" Absolute names are stored in the output file as they are.\n\
+ − 598 Relative ones are stored relative to the output file's directory.");
+ − 599 puts ("\n");
+ − 600
+ − 601 puts ("-a, --append\n\
+ − 602 Append tag entries to existing tags file.");
+ − 603
+ − 604 if (CTAGS)
+ − 605 puts ("-B, --backward-search\n\
+ − 606 Write the search commands for the tag entries using '?', the\n\
+ − 607 backward-search command instead of '/', the forward-search command.");
+ − 608
+ − 609 puts ("-C, --c++\n\
+ − 610 Treat files whose name suffix defaults to C language as C++ files.");
+ − 611
+ − 612 if (CTAGS)
+ − 613 puts ("-d, --defines\n\
+ − 614 Create tag entries for C #define constants and enum constants, too.");
+ − 615 else
+ − 616 puts ("-D, --no-defines\n\
+ − 617 Don't create tag entries for C #define constants and enum constants.\n\
+ − 618 This makes the tags file smaller.");
+ − 619
+ − 620 if (!CTAGS)
+ − 621 {
+ − 622 puts ("-i FILE, --include=FILE\n\
+ − 623 Include a note in tag file indicating that, when searching for\n\
+ − 624 a tag, one should also consult the tags file FILE after\n\
+ − 625 checking the current file.");
+ − 626 puts ("-l LANG, --language=LANG\n\
+ − 627 Force the following files to be considered as written in the\n\
+ − 628 named language up to the next --language=LANG option.");
+ − 629 }
+ − 630
+ − 631 if (CTAGS)
+ − 632 puts ("--globals\n\
+ − 633 Create tag entries for global variables in some languages.");
+ − 634 else
+ − 635 puts ("--no-globals\n\
+ − 636 Do not create tag entries for global variables in some\n\
+ − 637 languages. This makes the tags file smaller.");
+ − 638 puts ("--members\n\
+ − 639 Create tag entries for member variables in C and derived languages.");
+ − 640
+ − 641 #ifdef ETAGS_REGEXPS
+ − 642 puts ("-r /REGEXP/, --regex=/REGEXP/ or --regex=@regexfile\n\
+ − 643 Make a tag for each line matching pattern REGEXP in the\n\
+ − 644 following files. regexfile is a file containing one REGEXP\n\
+ − 645 per line. REGEXP is anchored (as if preceded by ^).\n\
+ − 646 The form /REGEXP/NAME/ creates a named tag. For example Tcl\n\
+ − 647 named tags can be created with:\n\
+ − 648 --regex=/proc[ \\t]+\\([^ \\t]+\\)/\\1/.");
+ − 649 puts ("-R, --no-regex\n\
+ − 650 Don't create tags from regexps for the following files.");
+ − 651 #endif /* ETAGS_REGEXPS */
+ − 652 puts ("-o FILE, --output=FILE\n\
+ − 653 Write the tags to FILE.");
+ − 654 #ifdef OO_BROWSER
+ − 655 puts ("-O, --oo-browser\n\
+ − 656 Generate a specialized tags format used only by the Altrasoft OO-Browser.");
+ − 657 #endif
+ − 658 puts ("-I, --ignore-indentation\n\
+ − 659 Don't rely on indentation quite as much as normal. Currently,\n\
+ − 660 this means not to assume that a closing brace in the first\n\
+ − 661 column is the final brace of a function or structure\n\
+ − 662 definition in C and C++.");
+ − 663
+ − 664 if (CTAGS)
+ − 665 {
+ − 666 puts ("-t, --typedefs\n\
+ − 667 Generate tag entries for C typedefs.");
+ − 668 puts ("-T, --typedefs-and-c++\n\
+ − 669 Generate tag entries for C typedefs, C struct/enum/union tags,\n\
+ − 670 and C++ member functions.");
+ − 671 puts ("-u, --update\n\
+ − 672 Update the tag entries for the given files, leaving tag\n\
+ − 673 entries for other files in place. Currently, this is\n\
+ − 674 implemented by deleting the existing entries for the given\n\
+ − 675 files and then rewriting the new entries at the end of the\n\
+ − 676 tags file. It is often faster to simply rebuild the entire\n\
+ − 677 tag file than to use this.");
+ − 678 puts ("-v, --vgrind\n\
+ − 679 Generates an index of items intended for human consumption,\n\
+ − 680 similar to the output of vgrind. The index is sorted, and\n\
+ − 681 gives the page number of each item.");
+ − 682 puts ("-w, --no-warn\n\
+ − 683 Suppress warning messages about entries defined in multiple\n\
+ − 684 files.");
+ − 685 puts ("-x, --cxref\n\
+ − 686 Like --vgrind, but in the style of cxref, rather than vgrind.\n\
+ − 687 The output uses line numbers instead of page numbers, but\n\
+ − 688 beyond that the differences are cosmetic; try both to see\n\
+ − 689 which you like.");
+ − 690 }
+ − 691
+ − 692 puts ("-V, --version\n\
+ − 693 Print the version of the program.\n\
+ − 694 -h, --help\n\
+ − 695 Print this help message.");
+ − 696
+ − 697 print_language_names ();
+ − 698
+ − 699 puts ("");
+ − 700 puts ("Report bugs to bug-gnu-emacs@prep.ai.mit.edu");
+ − 701
+ − 702 exit (GOOD);
+ − 703 }
+ − 704
+ − 705
+ − 706 enum argument_type
+ − 707 {
+ − 708 at_language,
+ − 709 at_regexp,
+ − 710 at_filename
+ − 711 };
+ − 712
+ − 713 /* This structure helps us allow mixing of --lang and file names. */
+ − 714 typedef struct
+ − 715 {
+ − 716 enum argument_type arg_type;
+ − 717 char *what;
+ − 718 language *lang;
+ − 719 } argument;
+ − 720
+ − 721 #ifdef VMS /* VMS specific functions */
+ − 722
+ − 723 #define EOS '\0'
+ − 724
+ − 725 /* This is a BUG! ANY arbitrary limit is a BUG!
+ − 726 Won't someone please fix this? */
+ − 727 #define MAX_FILE_SPEC_LEN 255
+ − 728 typedef struct {
+ − 729 short curlen;
+ − 730 char body[MAX_FILE_SPEC_LEN + 1];
+ − 731 } vspec;
+ − 732
+ − 733 /*
+ − 734 v1.05 nmm 26-Jun-86 fn_exp - expand specification of list of file names
+ − 735 returning in each successive call the next file name matching the input
+ − 736 spec. The function expects that each in_spec passed
+ − 737 to it will be processed to completion; in particular, up to and
+ − 738 including the call following that in which the last matching name
+ − 739 is returned, the function ignores the value of in_spec, and will
+ − 740 only start processing a new spec with the following call.
+ − 741 If an error occurs, on return out_spec contains the value
+ − 742 of in_spec when the error occurred.
+ − 743
+ − 744 With each successive file name returned in out_spec, the
+ − 745 function's return value is one. When there are no more matching
+ − 746 names the function returns zero. If on the first call no file
+ − 747 matches in_spec, or there is any other error, -1 is returned.
+ − 748 */
+ − 749
+ − 750 #include <rmsdef.h>
+ − 751 #include <descrip.h>
+ − 752 #define OUTSIZE MAX_FILE_SPEC_LEN
+ − 753 short
+ − 754 fn_exp (out, in)
+ − 755 vspec *out;
+ − 756 char *in;
+ − 757 {
+ − 758 static long context = 0;
+ − 759 static struct dsc$descriptor_s o;
+ − 760 static struct dsc$descriptor_s i;
+ − 761 static bool pass1 = TRUE;
+ − 762 long status;
+ − 763 short retval;
+ − 764
+ − 765 if (pass1)
+ − 766 {
+ − 767 pass1 = FALSE;
+ − 768 o.dsc$a_pointer = (char *) out;
+ − 769 o.dsc$w_length = (short)OUTSIZE;
+ − 770 i.dsc$a_pointer = in;
+ − 771 i.dsc$w_length = (short)strlen(in);
+ − 772 i.dsc$b_dtype = DSC$K_DTYPE_T;
+ − 773 i.dsc$b_class = DSC$K_CLASS_S;
+ − 774 o.dsc$b_dtype = DSC$K_DTYPE_VT;
+ − 775 o.dsc$b_class = DSC$K_CLASS_VS;
+ − 776 }
+ − 777 if ((status = lib$find_file(&i, &o, &context, 0, 0)) == RMS$_NORMAL)
+ − 778 {
+ − 779 out->body[out->curlen] = EOS;
+ − 780 return 1;
+ − 781 }
+ − 782 else if (status == RMS$_NMF)
+ − 783 retval = 0;
+ − 784 else
+ − 785 {
+ − 786 strcpy(out->body, in);
+ − 787 retval = -1;
+ − 788 }
+ − 789 lib$find_file_end(&context);
+ − 790 pass1 = TRUE;
+ − 791 return retval;
+ − 792 }
+ − 793
+ − 794 /*
+ − 795 v1.01 nmm 19-Aug-85 gfnames - return in successive calls the
+ − 796 name of each file specified by the provided arg expanding wildcards.
+ − 797 */
+ − 798 char *
+ − 799 gfnames (arg, p_error)
+ − 800 char *arg;
+ − 801 bool *p_error;
+ − 802 {
+ − 803 static vspec filename = {MAX_FILE_SPEC_LEN, "\0"};
+ − 804
+ − 805 switch (fn_exp (&filename, arg))
+ − 806 {
+ − 807 case 1:
+ − 808 *p_error = FALSE;
+ − 809 return filename.body;
+ − 810 case 0:
+ − 811 *p_error = FALSE;
+ − 812 return NULL;
+ − 813 default:
+ − 814 *p_error = TRUE;
+ − 815 return filename.body;
+ − 816 }
+ − 817 }
+ − 818
+ − 819 #ifndef OLD /* Newer versions of VMS do provide `system'. */
+ − 820 system (cmd)
+ − 821 char *cmd;
+ − 822 {
+ − 823 error ("%s", "system() function not implemented under VMS");
+ − 824 }
+ − 825 #endif
+ − 826
+ − 827 #define VERSION_DELIM ';'
+ − 828 char *massage_name (s)
+ − 829 char *s;
+ − 830 {
+ − 831 char *start = s;
+ − 832
+ − 833 for ( ; *s; s++)
+ − 834 if (*s == VERSION_DELIM)
+ − 835 {
+ − 836 *s = EOS;
+ − 837 break;
+ − 838 }
+ − 839 else
+ − 840 *s = lowcase (*s);
+ − 841 return start;
+ − 842 }
+ − 843 #endif /* VMS */
+ − 844
+ − 845
+ − 846 int
438
+ − 847 main (int argc, char *argv[])
428
+ − 848 {
+ − 849 int i;
+ − 850 unsigned int nincluded_files;
+ − 851 char **included_files;
+ − 852 char *this_file;
+ − 853 argument *argbuffer;
+ − 854 int current_arg, file_count;
+ − 855 linebuffer filename_lb;
+ − 856 #ifdef VMS
+ − 857 bool got_err;
+ − 858 #endif
+ − 859
442
+ − 860 #ifdef WIN32_NATIVE
428
+ − 861 _fmode = O_BINARY; /* all of files are treated as binary files */
442
+ − 862 #endif /* WIN32_NATIVE */
428
+ − 863
+ − 864 progname = argv[0];
+ − 865 nincluded_files = 0;
+ − 866 included_files = xnew (argc, char *);
+ − 867 current_arg = 0;
+ − 868 file_count = 0;
+ − 869
+ − 870 /* Allocate enough no matter what happens. Overkill, but each one
+ − 871 is small. */
+ − 872 argbuffer = xnew (argc, argument);
+ − 873
+ − 874 #ifdef ETAGS_REGEXPS
+ − 875 /* Set syntax for regular expression routines. */
+ − 876 re_set_syntax (RE_SYNTAX_EMACS | RE_INTERVALS);
+ − 877 #endif /* ETAGS_REGEXPS */
+ − 878
+ − 879 /*
+ − 880 * If etags, always find typedefs and structure tags. Why not?
+ − 881 * Also default is to find macro constants, enum constants and
+ − 882 * global variables.
+ − 883 */
+ − 884 if (!CTAGS)
+ − 885 {
+ − 886 typedefs = typedefs_and_cplusplus = constantypedefs = TRUE;
+ − 887 globals = TRUE;
+ − 888 members = FALSE;
+ − 889 }
+ − 890
+ − 891 while (1)
+ − 892 {
+ − 893 int opt;
+ − 894 char *optstring;
+ − 895
+ − 896 #ifdef ETAGS_REGEXPS
+ − 897 #ifndef OO_BROWSER
+ − 898 optstring = "-aCdDf:Il:o:r:RStTi:BuvxwVhH";
+ − 899 #else
+ − 900 optstring = "-aCdDf:Il:o:r:RStTi:BOuvxwVhH";
+ − 901 #endif
+ − 902 #else
+ − 903 #ifndef OO_BROWSER
+ − 904 optstring = "-aCdDf:Il:o:StTi:BuvxwVhH";
+ − 905 #else
+ − 906 optstring = "-aCdDf:Il:o:StTi:BOuvxwVhH";
+ − 907 #endif
+ − 908 #endif /* ETAGS_REGEXPS */
+ − 909
+ − 910 #ifndef LONG_OPTIONS
+ − 911 optstring = optstring + 1;
+ − 912 #endif /* LONG_OPTIONS */
+ − 913
+ − 914 opt = getopt_long (argc, argv, optstring, longopts, 0);
+ − 915 if (opt == EOF)
+ − 916 break;
+ − 917
+ − 918 switch (opt)
+ − 919 {
+ − 920 case 0:
+ − 921 /* If getopt returns 0, then it has already processed a
+ − 922 long-named option. We should do nothing. */
+ − 923 break;
+ − 924
+ − 925 case 1:
+ − 926 /* This means that a file name has been seen. Record it. */
+ − 927 argbuffer[current_arg].arg_type = at_filename;
+ − 928 argbuffer[current_arg].what = optarg;
+ − 929 ++current_arg;
+ − 930 ++file_count;
+ − 931 break;
+ − 932
+ − 933 /* Common options. */
+ − 934 case 'a': append_to_tagfile = TRUE; break;
+ − 935 case 'C': cplusplus = TRUE; break;
+ − 936 case 'd': constantypedefs = TRUE; break;
+ − 937 case 'D': constantypedefs = FALSE; break;
+ − 938 case 'f': /* for compatibility with old makefiles */
+ − 939 case 'o':
+ − 940 if (tagfile)
+ − 941 {
+ − 942 /* convert char to string, to call error with */
+ − 943 char buf[2];
+ − 944 sprintf (buf, "%c", opt);
+ − 945 error ("-%s option may only be given once.", buf);
+ − 946 suggest_asking_for_help ();
+ − 947 }
+ − 948 tagfile = optarg;
+ − 949 break;
+ − 950 #ifdef OO_BROWSER
+ − 951 case 'O':
+ − 952 oo_browser_format = TRUE;
+ − 953 break;
+ − 954 #endif
+ − 955 case 'I':
+ − 956 case 'S': /* for backward compatibility */
+ − 957 noindentypedefs = TRUE;
+ − 958 break;
+ − 959 case 'l':
+ − 960 {
+ − 961 language *lang = get_language_from_name (optarg);
+ − 962 if (lang != NULL)
+ − 963 {
+ − 964 argbuffer[current_arg].lang = lang;
+ − 965 argbuffer[current_arg].arg_type = at_language;
+ − 966 ++current_arg;
+ − 967 }
+ − 968 }
+ − 969 break;
+ − 970 #ifdef ETAGS_REGEXPS
+ − 971 case 'r':
+ − 972 argbuffer[current_arg].arg_type = at_regexp;
+ − 973 argbuffer[current_arg].what = optarg;
+ − 974 ++current_arg;
+ − 975 break;
+ − 976 case 'R':
+ − 977 argbuffer[current_arg].arg_type = at_regexp;
+ − 978 argbuffer[current_arg].what = NULL;
+ − 979 ++current_arg;
+ − 980 break;
+ − 981 #endif /* ETAGS_REGEXPS */
+ − 982 case 'V':
+ − 983 print_version ();
+ − 984 break;
+ − 985 case 'h':
+ − 986 case 'H':
+ − 987 print_help ();
+ − 988 break;
+ − 989 case 't':
+ − 990 typedefs = TRUE;
+ − 991 break;
+ − 992 case 'T':
+ − 993 typedefs = typedefs_and_cplusplus = TRUE;
+ − 994 break;
+ − 995 #if (!CTAGS)
+ − 996 /* Etags options */
+ − 997 case 'i':
+ − 998 included_files[nincluded_files++] = optarg;
+ − 999 break;
+ − 1000 #else /* CTAGS */
+ − 1001 /* Ctags options. */
+ − 1002 case 'B': searchar = '?'; break;
+ − 1003 case 'u': update = TRUE; break;
+ − 1004 case 'v': vgrind_style = TRUE; /*FALLTHRU*/
+ − 1005 case 'x': cxref_style = TRUE; break;
+ − 1006 case 'w': no_warnings = TRUE; break;
+ − 1007 #endif /* CTAGS */
+ − 1008 default:
+ − 1009 suggest_asking_for_help ();
+ − 1010 }
+ − 1011 }
+ − 1012
+ − 1013 for (; optind < argc; ++optind)
+ − 1014 {
+ − 1015 argbuffer[current_arg].arg_type = at_filename;
+ − 1016 argbuffer[current_arg].what = argv[optind];
+ − 1017 ++current_arg;
+ − 1018 ++file_count;
+ − 1019 }
+ − 1020
+ − 1021 if (nincluded_files == 0 && file_count == 0)
+ − 1022 {
+ − 1023 error ("no input files specified.", 0);
+ − 1024 suggest_asking_for_help ();
+ − 1025 }
+ − 1026
+ − 1027 if (tagfile == NULL)
+ − 1028 tagfile = CTAGS ? "tags" : "TAGS";
+ − 1029 cwd = etags_getcwd (); /* the current working directory */
+ − 1030 if (cwd[strlen (cwd) - 1] != '/')
+ − 1031 {
+ − 1032 char *oldcwd = cwd;
+ − 1033 cwd = concat (oldcwd, "/", "");
+ − 1034 free (oldcwd);
+ − 1035 }
+ − 1036 if (streq (tagfile, "-"))
+ − 1037 tagfiledir = cwd;
+ − 1038 else
+ − 1039 tagfiledir = absolute_dirname (tagfile, cwd);
+ − 1040
+ − 1041 init (); /* set up boolean "functions" */
+ − 1042
+ − 1043 initbuffer (&lb);
+ − 1044 initbuffer (&token_name);
+ − 1045 initbuffer (&lbs[0].lb);
+ − 1046 initbuffer (&lbs[1].lb);
+ − 1047 initbuffer (&filename_lb);
+ − 1048
+ − 1049 if (!CTAGS)
+ − 1050 {
+ − 1051 if (streq (tagfile, "-"))
+ − 1052 {
+ − 1053 tagf = stdout;
442
+ − 1054 #ifdef WIN32_NATIVE
428
+ − 1055 /* Switch redirected `stdout' to binary mode (setting `_fmode'
+ − 1056 doesn't take effect until after `stdout' is already open). */
+ − 1057 if (!isatty (fileno (stdout)))
+ − 1058 setmode (fileno (stdout), O_BINARY);
442
+ − 1059 #endif /* WIN32_NATIVE */
428
+ − 1060 }
+ − 1061 else
+ − 1062 tagf = fopen (tagfile, append_to_tagfile ? "a" : "w");
+ − 1063 if (tagf == NULL)
+ − 1064 pfatal (tagfile);
+ − 1065 }
+ − 1066
+ − 1067 /*
+ − 1068 * Loop through files finding functions.
+ − 1069 */
+ − 1070 for (i = 0; i < current_arg; ++i)
+ − 1071 {
+ − 1072 switch (argbuffer[i].arg_type)
+ − 1073 {
+ − 1074 case at_language:
+ − 1075 forced_lang = argbuffer[i].lang;
+ − 1076 break;
+ − 1077 #ifdef ETAGS_REGEXPS
+ − 1078 case at_regexp:
+ − 1079 analyse_regex (argbuffer[i].what);
+ − 1080 break;
+ − 1081 #endif
+ − 1082 case at_filename:
+ − 1083 #ifdef VMS
+ − 1084 while ((this_file = gfnames (argbuffer[i].what, &got_err)) != NULL)
+ − 1085 {
+ − 1086 if (got_err)
+ − 1087 {
+ − 1088 error ("can't find file %s\n", this_file);
+ − 1089 argc--, argv++;
+ − 1090 }
+ − 1091 else
+ − 1092 {
+ − 1093 this_file = massage_name (this_file);
+ − 1094 }
+ − 1095 #else
+ − 1096 this_file = argbuffer[i].what;
+ − 1097 #endif
+ − 1098 #ifdef OO_BROWSER
+ − 1099 oo_browser_clear_all_globals();
+ − 1100 #endif
+ − 1101 /* Input file named "-" means read file names from stdin
+ − 1102 (one per line) and use them. */
+ − 1103 if (streq (this_file, "-"))
+ − 1104 while (readline_internal (&filename_lb, stdin) > 0)
+ − 1105 #ifdef OO_BROWSER
+ − 1106 {
+ − 1107 oo_browser_clear_some_globals();
+ − 1108 #endif
+ − 1109 process_file (filename_lb.buffer);
+ − 1110 #ifdef OO_BROWSER
+ − 1111 }
+ − 1112 #endif
+ − 1113 else
+ − 1114 process_file (this_file);
+ − 1115 #ifdef VMS
+ − 1116 }
+ − 1117 #endif
+ − 1118 break;
+ − 1119 }
+ − 1120 }
+ − 1121
+ − 1122 #ifdef ETAGS_REGEXPS
+ − 1123 free_patterns ();
+ − 1124 #endif /* ETAGS_REGEXPS */
+ − 1125
+ − 1126 if (!CTAGS)
+ − 1127 {
+ − 1128 while (nincluded_files-- > 0)
+ − 1129 fprintf (tagf, "\f\n%s,include\n", *included_files++);
+ − 1130
+ − 1131 fclose (tagf);
+ − 1132 exit (GOOD);
+ − 1133 }
+ − 1134
+ − 1135 /* If CTAGS, we are here. process_file did not write the tags yet,
+ − 1136 because we want them ordered. Let's do it now. */
+ − 1137 if (cxref_style)
+ − 1138 {
+ − 1139 put_entries (head);
+ − 1140 exit (GOOD);
+ − 1141 }
+ − 1142
+ − 1143 if (update)
+ − 1144 {
+ − 1145 char cmd[BUFSIZ];
+ − 1146 for (i = 0; i < current_arg; ++i)
+ − 1147 {
+ − 1148 if (argbuffer[i].arg_type != at_filename)
+ − 1149 continue;
+ − 1150 sprintf (cmd,
+ − 1151 "mv %s OTAGS;fgrep -v '\t%s\t' OTAGS >%s;rm OTAGS",
+ − 1152 tagfile, argbuffer[i].what, tagfile);
+ − 1153 if (system (cmd) != GOOD)
+ − 1154 fatal ("failed to execute shell command", (char *)NULL);
+ − 1155 }
+ − 1156 append_to_tagfile = TRUE;
+ − 1157 }
+ − 1158
+ − 1159 tagf = fopen (tagfile, append_to_tagfile ? "a" : "w");
+ − 1160 if (tagf == NULL)
+ − 1161 pfatal (tagfile);
+ − 1162 put_entries (head);
+ − 1163 fclose (tagf);
+ − 1164
+ − 1165 if (update)
+ − 1166 {
+ − 1167 char cmd[BUFSIZ];
+ − 1168 sprintf (cmd, "sort %s -o %s", tagfile, tagfile);
+ − 1169 exit (system (cmd));
+ − 1170 }
+ − 1171 return GOOD;
+ − 1172 }
+ − 1173
+ − 1174
+ − 1175 /*
+ − 1176 * Return a language given the name.
+ − 1177 */
+ − 1178 language *
+ − 1179 get_language_from_name (name)
+ − 1180 char *name;
+ − 1181 {
+ − 1182 language *lang;
+ − 1183
+ − 1184 if (name == NULL)
+ − 1185 error ("empty language name", (char *)NULL);
+ − 1186 else
+ − 1187 {
+ − 1188 for (lang = lang_names; lang->name != NULL; lang++)
+ − 1189 if (streq (name, lang->name))
+ − 1190 return lang;
+ − 1191 error ("unknown language \"%s\"", name);
+ − 1192 }
+ − 1193
+ − 1194 return NULL;
+ − 1195 }
+ − 1196
+ − 1197
+ − 1198 /*
+ − 1199 * Return a language given the interpreter name.
+ − 1200 */
+ − 1201 language *
+ − 1202 get_language_from_interpreter (interpreter)
+ − 1203 char *interpreter;
+ − 1204 {
+ − 1205 language *lang;
+ − 1206 char **iname;
+ − 1207
+ − 1208 if (interpreter == NULL)
+ − 1209 return NULL;
+ − 1210 for (lang = lang_names; lang->name != NULL; lang++)
+ − 1211 if (lang->interpreters != NULL)
+ − 1212 for (iname = lang->interpreters; *iname != NULL; iname++)
+ − 1213 if (streq (*iname, interpreter))
+ − 1214 return lang;
+ − 1215
+ − 1216 return NULL;
+ − 1217 }
+ − 1218
+ − 1219
+ − 1220
+ − 1221 /*
+ − 1222 * Return a language given the file suffix.
+ − 1223 */
+ − 1224 language *
+ − 1225 get_language_from_suffix (suffix)
+ − 1226 char *suffix;
+ − 1227 {
+ − 1228 language *lang;
+ − 1229 char **ext;
+ − 1230
+ − 1231 if (suffix == NULL)
+ − 1232 return NULL;
+ − 1233 for (lang = lang_names; lang->name != NULL; lang++)
+ − 1234 if (lang->suffixes != NULL)
+ − 1235 for (ext = lang->suffixes; *ext != NULL; ext++)
+ − 1236 if (streq (*ext, suffix))
+ − 1237 return lang;
+ − 1238
+ − 1239 return NULL;
+ − 1240 }
+ − 1241
+ − 1242
+ − 1243 /*
+ − 1244 * This routine is called on each file argument.
+ − 1245 */
+ − 1246 void
+ − 1247 process_file (file)
+ − 1248 char *file;
+ − 1249 {
+ − 1250 struct stat stat_buf;
+ − 1251 FILE *inf;
+ − 1252
+ − 1253 canonicalize_filename (file);
+ − 1254 if (stat (file, &stat_buf) == 0 && !S_ISREG (stat_buf.st_mode))
+ − 1255 {
+ − 1256 error ("skipping %s: it is not a regular file.", file);
+ − 1257 return;
+ − 1258 }
+ − 1259 if (streq (file, tagfile) && !streq (tagfile, "-"))
+ − 1260 {
+ − 1261 error ("skipping inclusion of %s in self.", file);
+ − 1262 return;
+ − 1263 }
+ − 1264 inf = fopen (file, "r");
+ − 1265 if (inf == NULL)
+ − 1266 {
+ − 1267 perror (file);
+ − 1268 return;
+ − 1269 }
+ − 1270
+ − 1271 find_entries (file, inf);
+ − 1272
+ − 1273 if (!CTAGS)
+ − 1274 {
+ − 1275 char *filename;
+ − 1276
+ − 1277 if (filename_is_absolute (file))
+ − 1278 {
+ − 1279 /* file is an absolute file name. Canonicalise it. */
+ − 1280 filename = absolute_filename (file, cwd);
+ − 1281 }
+ − 1282 else
+ − 1283 {
+ − 1284 /* file is a file name relative to cwd. Make it relative
+ − 1285 to the directory of the tags file. */
+ − 1286 filename = relative_filename (file, tagfiledir);
+ − 1287 }
+ − 1288 #ifdef OO_BROWSER
+ − 1289 if (oo_browser_format)
+ − 1290 fprintf (tagf, "\f\n%s\n", filename);
+ − 1291 else
+ − 1292 #endif
+ − 1293 fprintf (tagf, "\f\n%s,%d\n", filename, total_size_of_entries (head));
+ − 1294 free (filename);
+ − 1295 put_entries (head);
+ − 1296 free_tree (head);
+ − 1297 head = NULL;
+ − 1298 }
+ − 1299 }
+ − 1300
+ − 1301 /*
+ − 1302 * This routine sets up the boolean pseudo-functions which work
+ − 1303 * by setting boolean flags dependent upon the corresponding character.
+ − 1304 * Every char which is NOT in that string is not a white char. Therefore,
+ − 1305 * all of the array "_wht" is set to FALSE, and then the elements
+ − 1306 * subscripted by the chars in "white" are set to TRUE. Thus "_wht"
+ − 1307 * of a char is TRUE if it is the string "white", else FALSE.
+ − 1308 */
+ − 1309 void
+ − 1310 init ()
+ − 1311 {
+ − 1312 register char *sp;
+ − 1313 register int i;
+ − 1314
+ − 1315 for (i = 0; i < CHARS; i++)
+ − 1316 iswhite(i) = notinname(i) = begtoken(i) = intoken(i) = endtoken(i) = FALSE;
+ − 1317 for (sp = white; *sp != '\0'; sp++) iswhite (*sp) = TRUE;
+ − 1318 for (sp = nonam; *sp != '\0'; sp++) notinname (*sp) = TRUE;
+ − 1319 for (sp = begtk; *sp != '\0'; sp++) begtoken (*sp) = TRUE;
+ − 1320 for (sp = midtk; *sp != '\0'; sp++) intoken (*sp) = TRUE;
+ − 1321 for (sp = endtk; *sp != '\0'; sp++) endtoken (*sp) = TRUE;
+ − 1322 iswhite('\0') = iswhite('\n');
+ − 1323 notinname('\0') = notinname('\n');
+ − 1324 begtoken('\0') = begtoken('\n');
+ − 1325 intoken('\0') = intoken('\n');
+ − 1326 endtoken('\0') = endtoken('\n');
+ − 1327 }
+ − 1328
+ − 1329 /*
+ − 1330 * This routine opens the specified file and calls the function
+ − 1331 * which finds the function and type definitions.
+ − 1332 */
+ − 1333 node *last_node = NULL;
+ − 1334
+ − 1335 void
+ − 1336 find_entries (file, inf)
+ − 1337 char *file;
+ − 1338 FILE *inf;
+ − 1339 {
+ − 1340 char *cp;
+ − 1341 language *lang;
+ − 1342 node *old_last_node;
+ − 1343
+ − 1344 curfile = savestr (file);
+ − 1345
+ − 1346 /* If user specified a language, use it. */
+ − 1347 lang = forced_lang;
+ − 1348 if (lang != NULL && lang->function != NULL)
+ − 1349 {
+ − 1350 curlang = lang;
+ − 1351 lang->function (inf);
+ − 1352 free (curfile);
+ − 1353 fclose (inf);
+ − 1354 return;
+ − 1355 }
+ − 1356
+ − 1357 cp = etags_strrchr (file, '.');
+ − 1358 if (cp != NULL)
+ − 1359 {
+ − 1360 cp += 1;
+ − 1361 lang = get_language_from_suffix (cp);
+ − 1362 if (lang != NULL && lang->function != NULL)
+ − 1363 {
+ − 1364 curlang = lang;
+ − 1365 lang->function (inf);
+ − 1366 free (curfile);
+ − 1367 fclose (inf);
+ − 1368 return;
+ − 1369 }
+ − 1370 }
+ − 1371
+ − 1372 /* Look for sharp-bang as the first two characters. */
+ − 1373 if (readline_internal (&lb, inf) > 0
+ − 1374 && lb.len >= 2
+ − 1375 && lb.buffer[0] == '#'
+ − 1376 && lb.buffer[1] == '!')
+ − 1377 {
+ − 1378 char *lp;
+ − 1379
+ − 1380 /* Set lp to point at the first char after the last slash in the
+ − 1381 line or, if no slashes, at the first nonblank. Then set cp to
+ − 1382 the first successive blank and terminate the string. */
+ − 1383 lp = etags_strrchr (lb.buffer+2, '/');
+ − 1384 if (lp != NULL)
+ − 1385 lp += 1;
+ − 1386 else
+ − 1387 lp = skip_spaces (lb.buffer + 2);
+ − 1388 cp = skip_non_spaces (lp);
+ − 1389 *cp = '\0';
+ − 1390
+ − 1391 if (strlen (lp) > 0)
+ − 1392 {
+ − 1393 lang = get_language_from_interpreter (lp);
+ − 1394 if (lang != NULL && lang->function != NULL)
+ − 1395 {
+ − 1396 curlang = lang;
+ − 1397 lang->function (inf);
+ − 1398 fclose (inf);
+ − 1399 free (curfile);
+ − 1400 return;
+ − 1401 }
+ − 1402 }
+ − 1403 }
+ − 1404 rewind (inf);
+ − 1405
+ − 1406 /* Try Fortran. */
+ − 1407 old_last_node = last_node;
+ − 1408 curlang = get_language_from_name ("fortran");
+ − 1409 Fortran_functions (inf);
+ − 1410
+ − 1411 /* No Fortran entries found. Try C. */
+ − 1412 if (old_last_node == last_node)
+ − 1413 {
+ − 1414 rewind (inf);
+ − 1415 curlang = get_language_from_name (cplusplus ? "c++" : "c");
+ − 1416 default_C_entries (inf);
+ − 1417 }
+ − 1418 free (curfile);
+ − 1419 fclose (inf);
+ − 1420 return;
+ − 1421 }
+ − 1422
+ − 1423 /* Record a tag. */
+ − 1424 void
+ − 1425 pfnote (name, is_func, linestart, linelen, lno, cno)
+ − 1426 char *name; /* tag name, or NULL if unnamed */
+ − 1427 bool is_func; /* tag is a function */
+ − 1428 char *linestart; /* start of the line where tag is */
+ − 1429 int linelen; /* length of the line where tag is */
+ − 1430 int lno; /* line number */
+ − 1431 long cno; /* character number */
+ − 1432 {
+ − 1433 register node *np;
+ − 1434
+ − 1435 if (CTAGS && name == NULL)
+ − 1436 return;
+ − 1437
+ − 1438 np = xnew (1, node);
+ − 1439
+ − 1440 /* If ctags mode, change name "main" to M<thisfilename>. */
+ − 1441 if (CTAGS && !cxref_style && streq (name, "main"))
+ − 1442 {
+ − 1443 register char *fp = etags_strrchr (curfile, '/');
+ − 1444 np->name = concat ("M", fp == 0 ? curfile : fp + 1, "");
+ − 1445 fp = etags_strrchr (np->name, '.');
+ − 1446 if (fp && fp[1] != '\0' && fp[2] == '\0')
+ − 1447 fp[0] = 0;
+ − 1448 }
+ − 1449 else
+ − 1450 np->name = name;
+ − 1451 np->been_warned = FALSE;
+ − 1452 np->file = curfile;
+ − 1453 np->is_func = is_func;
+ − 1454 np->lno = lno;
+ − 1455 /* Our char numbers are 0-base, because of C language tradition?
+ − 1456 ctags compatibility? old versions compatibility? I don't know.
+ − 1457 Anyway, since emacs's are 1-base we expect etags.el to take care
+ − 1458 of the difference. If we wanted to have 1-based numbers, we would
+ − 1459 uncomment the +1 below. */
+ − 1460 np->cno = cno /* + 1 */ ;
+ − 1461 np->left = np->right = NULL;
+ − 1462 if (CTAGS && !cxref_style)
+ − 1463 {
+ − 1464 if (strlen (linestart) < 50)
+ − 1465 np->pat = concat (linestart, "$", "");
+ − 1466 else
+ − 1467 np->pat = savenstr (linestart, 50);
+ − 1468 }
+ − 1469 else
+ − 1470 np->pat = savenstr (linestart, linelen);
+ − 1471
+ − 1472 #ifdef OO_BROWSER
+ − 1473 if (oo_browser_format)
+ − 1474 np->construct = oo_browser_construct;
+ − 1475 oo_browser_construct = C_NULL;
+ − 1476 oo_browser_check_and_clear_structtype();
+ − 1477 #endif
+ − 1478
+ − 1479 add_node (np, &head);
+ − 1480 }
+ − 1481
+ − 1482 /* Date: Wed, 22 Jan 1997 02:56:31 -0500 [last amended 18 Sep 1997]
+ − 1483 * From: Sam Kendall <kendall@mv.mv.com>
+ − 1484 * Subject: Proposal for firming up the TAGS format specification
+ − 1485 * To: F.Potorti@cnuce.cnr.it
+ − 1486 *
+ − 1487 * pfnote should emit the optimized form [unnamed tag] only if:
+ − 1488 * 1. name does not contain any of the characters " \t\r\n(),;";
+ − 1489 * 2. linestart contains name as either a rightmost, or rightmost but
+ − 1490 * one character, substring;
+ − 1491 * 3. the character, if any, immediately before name in linestart must
+ − 1492 * be one of the characters " \t(),;";
+ − 1493 * 4. the character, if any, immediately after name in linestart must
+ − 1494 * also be one of the characters " \t(),;".
+ − 1495 *
+ − 1496 * The real implementation uses the notinname() macro, which recognises
+ − 1497 * characters slightly different form " \t\r\n(),;". See the variable
+ − 1498 * `nonam'.
+ − 1499 */
+ − 1500 #define traditional_tag_style TRUE
+ − 1501 void
+ − 1502 new_pfnote (name, namelen, is_func, linestart, linelen, lno, cno)
+ − 1503 char *name; /* tag name, or NULL if unnamed */
+ − 1504 int namelen; /* tag length */
+ − 1505 bool is_func; /* tag is a function */
+ − 1506 char *linestart; /* start of the line where tag is */
+ − 1507 int linelen; /* length of the line where tag is */
+ − 1508 int lno; /* line number */
+ − 1509 long cno; /* character number */
+ − 1510 {
+ − 1511 register char *cp;
+ − 1512 bool named;
+ − 1513
+ − 1514 named = TRUE;
+ − 1515 if (!CTAGS)
+ − 1516 {
+ − 1517 for (cp = name; !notinname (*cp); cp++)
+ − 1518 continue;
+ − 1519 if (*cp == '\0') /* rule #1 */
+ − 1520 {
+ − 1521 cp = linestart + linelen - namelen;
+ − 1522 if (notinname (linestart[linelen-1]))
+ − 1523 cp -= 1; /* rule #4 */
+ − 1524 #ifdef OO_BROWSER
+ − 1525 if (!oo_browser_format
+ − 1526 && cp >= linestart /* rule #2 */
+ − 1527 #else
+ − 1528 if (cp >= linestart /* rule #2 */
+ − 1529 #endif
+ − 1530 && (cp == linestart
+ − 1531 || notinname (cp[-1])) /* rule #3 */
+ − 1532 && strneq (name, cp, namelen)) /* rule #2 */
+ − 1533 named = FALSE; /* use unnamed tag */
+ − 1534 }
+ − 1535 }
+ − 1536
+ − 1537 if (named)
+ − 1538 name = savenstr (name, namelen);
+ − 1539 else
+ − 1540 name = NULL;
+ − 1541 pfnote (name, is_func, linestart, linelen, lno, cno);
+ − 1542 }
+ − 1543
+ − 1544 /*
+ − 1545 * free_tree ()
+ − 1546 * recurse on left children, iterate on right children.
+ − 1547 */
+ − 1548 void
+ − 1549 free_tree (np)
+ − 1550 register node *np;
+ − 1551 {
+ − 1552 while (np)
+ − 1553 {
+ − 1554 register node *node_right = np->right;
+ − 1555 free_tree (np->left);
+ − 1556 if (np->name != NULL)
+ − 1557 free (np->name);
+ − 1558 free (np->pat);
+ − 1559 free (np);
+ − 1560 np = node_right;
+ − 1561 }
+ − 1562 }
+ − 1563
+ − 1564 /*
+ − 1565 * add_node ()
+ − 1566 * Adds a node to the tree of nodes. In etags mode, we don't keep
+ − 1567 * it sorted; we just keep a linear list. In ctags mode, maintain
+ − 1568 * an ordered tree, with no attempt at balancing.
+ − 1569 *
+ − 1570 * add_node is the only function allowed to add nodes, so it can
+ − 1571 * maintain state.
+ − 1572 */
+ − 1573 void
+ − 1574 add_node (np, cur_node_p)
+ − 1575 node *np, **cur_node_p;
+ − 1576 {
+ − 1577 register int dif;
+ − 1578 register node *cur_node = *cur_node_p;
+ − 1579
+ − 1580 if (cur_node == NULL)
+ − 1581 {
+ − 1582 *cur_node_p = np;
+ − 1583 last_node = np;
+ − 1584 return;
+ − 1585 }
+ − 1586
+ − 1587 if (!CTAGS)
+ − 1588 {
+ − 1589 /* Etags Mode */
+ − 1590 if (last_node == NULL)
+ − 1591 fatal ("internal error in add_node", (char *)NULL);
+ − 1592 last_node->right = np;
+ − 1593 last_node = np;
+ − 1594 }
+ − 1595 else
+ − 1596 {
+ − 1597 /* Ctags Mode */
+ − 1598 dif = strcmp (np->name, cur_node->name);
+ − 1599
+ − 1600 /*
+ − 1601 * If this tag name matches an existing one, then
+ − 1602 * do not add the node, but maybe print a warning.
+ − 1603 */
+ − 1604 if (!dif)
+ − 1605 {
+ − 1606 if (streq (np->file, cur_node->file))
+ − 1607 {
+ − 1608 if (!no_warnings)
+ − 1609 {
+ − 1610 fprintf (stderr, "Duplicate entry in file %s, line %d: %s\n",
+ − 1611 np->file, lineno, np->name);
+ − 1612 fprintf (stderr, "Second entry ignored\n");
+ − 1613 }
+ − 1614 }
+ − 1615 else if (!cur_node->been_warned && !no_warnings)
+ − 1616 {
+ − 1617 fprintf
+ − 1618 (stderr,
+ − 1619 "Duplicate entry in files %s and %s: %s (Warning only)\n",
+ − 1620 np->file, cur_node->file, np->name);
+ − 1621 cur_node->been_warned = TRUE;
+ − 1622 }
+ − 1623 return;
+ − 1624 }
+ − 1625
+ − 1626 /* Actually add the node */
+ − 1627 add_node (np, dif < 0 ? &cur_node->left : &cur_node->right);
+ − 1628 }
+ − 1629 }
+ − 1630
+ − 1631 #ifdef OO_BROWSER
+ − 1632 /* Default class name for the current OO-Browser tag. */
+ − 1633 static char *oo_browser_class;
+ − 1634 /* Prefix character to use in OO-Browser listings for the current tag. */
+ − 1635 static char oo_browser_prefix;
+ − 1636 #endif
+ − 1637
+ − 1638 void
438
+ − 1639 put_entries (node *np)
428
+ − 1640 {
+ − 1641 register char *sp;
+ − 1642
+ − 1643 if (np == NULL)
+ − 1644 return;
+ − 1645
+ − 1646 /* Output subentries that precede this one */
+ − 1647 put_entries (np->left);
+ − 1648
+ − 1649 /* Output this entry */
+ − 1650
+ − 1651 if (!CTAGS)
+ − 1652 {
+ − 1653 #ifdef OO_BROWSER
+ − 1654 if (oo_browser_format)
+ − 1655 {
+ − 1656 /* Omit C++ `class' and `method' entries as well as Objective-C
+ − 1657 entries from this OO-Browser tags file since the browser handles
+ − 1658 them independently of this file. Omit `extern' variable declarations
+ − 1659 as they are unused by the OO-Browser. */
+ − 1660 if (np->construct != C_CLASS
+ − 1661 && np->construct != C_METHOD
+ − 1662 && np->construct != C_EXTERN
+ − 1663 && np->construct != C_OBJC)
+ − 1664 {
+ − 1665 oo_browser_class = oo_browser_default_classes[np->construct];
+ − 1666 switch (np->construct)
+ − 1667 {
+ − 1668 case C_CONSTANT:
+ − 1669 case C_ENUMERATION:
+ − 1670 case C_ENUM_LABEL:
+ − 1671 case C_STRUCTURE:
+ − 1672 case C_TYPE:
+ − 1673 case C_UNION:
+ − 1674 case C_VARIABLE:
+ − 1675 oo_browser_prefix = '=';
+ − 1676 break;
+ − 1677 case C_FUNCTION:
+ − 1678 case C_MACRO:
+ − 1679 oo_browser_prefix = '-';
+ − 1680 break;
+ − 1681 }
+ − 1682 if (np->name != NULL)
+ − 1683 fprintf (tagf, "%s@%c %s@%s\n",
+ − 1684 oo_browser_class, oo_browser_prefix,
+ − 1685 np->name, np->pat);
+ − 1686 else
+ − 1687 fprintf (tagf, "%s@%c ???@%s\n",
+ − 1688 oo_browser_class, oo_browser_prefix, np->pat);
+ − 1689 }
+ − 1690 }
+ − 1691 else
+ − 1692 {
+ − 1693 #endif
+ − 1694 if (np->name != NULL)
+ − 1695 fprintf (tagf, "%s\177%s\001%d,%ld\n",
+ − 1696 np->pat, np->name, np->lno, np->cno);
+ − 1697 else
+ − 1698 fprintf (tagf, "%s\177%d,%ld\n",
+ − 1699 np->pat, np->lno, np->cno);
+ − 1700 #ifdef OO_BROWSER
+ − 1701 }
+ − 1702 #endif
+ − 1703 }
+ − 1704 else
+ − 1705 {
+ − 1706 if (np->name == NULL)
+ − 1707 error ("internal error: NULL name in ctags mode.", (char *)NULL);
+ − 1708
+ − 1709 if (cxref_style)
+ − 1710 {
+ − 1711 if (vgrind_style)
+ − 1712 fprintf (stdout, "%s %s %d\n",
+ − 1713 np->name, np->file, (np->lno + 63) / 64);
+ − 1714 else
+ − 1715 fprintf (stdout, "%-16s %3d %-16s %s\n",
+ − 1716 np->name, np->lno, np->file, np->pat);
+ − 1717 }
+ − 1718 else
+ − 1719 {
+ − 1720 fprintf (tagf, "%s\t%s\t", np->name, np->file);
+ − 1721
+ − 1722 if (np->is_func)
+ − 1723 { /* a function */
+ − 1724 putc (searchar, tagf);
+ − 1725 putc ('^', tagf);
+ − 1726
+ − 1727 for (sp = np->pat; *sp; sp++)
+ − 1728 {
+ − 1729 if (*sp == '\\' || *sp == searchar)
+ − 1730 putc ('\\', tagf);
+ − 1731 putc (*sp, tagf);
+ − 1732 }
+ − 1733 putc (searchar, tagf);
+ − 1734 }
+ − 1735 else
+ − 1736 { /* a typedef; text pattern inadequate */
+ − 1737 fprintf (tagf, "%d", np->lno);
+ − 1738 }
+ − 1739 putc ('\n', tagf);
+ − 1740 }
+ − 1741 }
+ − 1742
+ − 1743 /* Output subentries that follow this one */
+ − 1744 put_entries (np->right);
+ − 1745 }
+ − 1746
+ − 1747 /* Length of a number's decimal representation. */
+ − 1748 int number_len PP ((long num));
+ − 1749 int
+ − 1750 number_len (num)
+ − 1751 long num;
+ − 1752 {
+ − 1753 int len = 1;
+ − 1754 while ((num /= 10) > 0)
+ − 1755 len += 1;
+ − 1756 return len;
+ − 1757 }
+ − 1758
+ − 1759 /*
+ − 1760 * Return total number of characters that put_entries will output for
+ − 1761 * the nodes in the subtree of the specified node. Works only if
+ − 1762 * we are not ctags, but called only in that case. This count
+ − 1763 * is irrelevant with the new tags.el, but is still supplied for
+ − 1764 * backward compatibility.
+ − 1765 */
+ − 1766 int
+ − 1767 total_size_of_entries (np)
+ − 1768 register node *np;
+ − 1769 {
+ − 1770 register int total;
+ − 1771
+ − 1772 if (np == NULL)
+ − 1773 return 0;
+ − 1774
+ − 1775 for (total = 0; np != NULL; np = np->right)
+ − 1776 {
+ − 1777 /* Count left subentries. */
+ − 1778 total += total_size_of_entries (np->left);
+ − 1779
+ − 1780 /* Count this entry */
+ − 1781 total += strlen (np->pat) + 1;
+ − 1782 total += number_len ((long) np->lno) + 1 + number_len (np->cno) + 1;
+ − 1783 if (np->name != NULL)
+ − 1784 total += 1 + strlen (np->name); /* \001name */
+ − 1785 }
+ − 1786
+ − 1787 return total;
+ − 1788 }
+ − 1789
+ − 1790 /*
+ − 1791 * The C symbol tables.
+ − 1792 */
+ − 1793 enum sym_type
+ − 1794 {
+ − 1795 st_none,
+ − 1796 st_C_objprot, st_C_objimpl, st_C_objend,
+ − 1797 st_C_gnumacro,
+ − 1798 st_C_ignore,
+ − 1799 st_C_javastruct,
+ − 1800 st_C_struct, st_C_enum, st_C_define, st_C_typedef, st_C_typespec,
+ − 1801 st_C_const
+ − 1802 #ifdef OO_BROWSER
+ − 1803 , st_C_union, st_C_class, st_C_extern, st_C_inline
+ − 1804 #endif
+ − 1805 };
+ − 1806
+ − 1807 /* Feed stuff between (but not including) %[ and %] lines to:
+ − 1808 gperf -c -k 1,3 -o -p -r -t
+ − 1809 %[
+ − 1810 struct C_stab_entry { char *name; int c_ext; enum sym_type type; }
+ − 1811 %%
+ − 1812 @interface, 0, st_C_objprot
+ − 1813 @protocol, 0, st_C_objprot
+ − 1814 @implementation,0, st_C_objimpl
+ − 1815 @end, 0, st_C_objend
+ − 1816 import, C_JAVA, st_C_ignore
+ − 1817 package, C_JAVA, st_C_ignore
+ − 1818 friend, C_PLPL, st_C_ignore
+ − 1819 extends, C_JAVA, st_C_javastruct
+ − 1820 implements, C_JAVA, st_C_javastruct
+ − 1821 interface, C_JAVA, st_C_struct
+ − 1822 class, C_PLPL, st_C_class
+ − 1823 namespace, C_PLPL, st_C_struct
+ − 1824 domain, C_STAR, st_C_struct
+ − 1825 union, 0, st_C_union
+ − 1826 struct, 0, st_C_struct
+ − 1827 enum, 0, st_C_enum
+ − 1828 typedef, 0, st_C_typedef
+ − 1829 define, 0, st_C_define
+ − 1830 inline, 0, st_C_inline
+ − 1831 bool, C_PLPL, st_C_typespec
+ − 1832 long, 0, st_C_typespec
+ − 1833 short, 0, st_C_typespec
+ − 1834 int, 0, st_C_typespec
+ − 1835 char, 0, st_C_typespec
+ − 1836 float, 0, st_C_typespec
+ − 1837 double, 0, st_C_typespec
+ − 1838 signed, 0, st_C_typespec
+ − 1839 unsigned, 0, st_C_typespec
+ − 1840 auto, 0, st_C_typespec
+ − 1841 void, 0, st_C_typespec
+ − 1842 extern, 0, st_C_extern
+ − 1843 static, 0, st_C_typespec
+ − 1844 const, 0, st_C_const
+ − 1845 volatile, 0, st_C_typespec
+ − 1846 explicit, C_PLPL, st_C_typespec
+ − 1847 mutable, C_PLPL, st_C_typespec
+ − 1848 typename, C_PLPL, st_C_typespec
+ − 1849 # DEFUN used in emacs, the next three used in glibc (SYSCALL only for mach).
+ − 1850 DEFUN, 0, st_C_gnumacro
+ − 1851 SYSCALL, 0, st_C_gnumacro
+ − 1852 ENTRY, 0, st_C_gnumacro
+ − 1853 PSEUDO, 0, st_C_gnumacro
+ − 1854 # These are defined inside C functions, so currently they are not met.
+ − 1855 # EXFUN used in glibc, DEFVAR_* in emacs.
+ − 1856 #EXFUN, 0, st_C_gnumacro
+ − 1857 #DEFVAR_, 0, st_C_gnumacro
+ − 1858 %]
+ − 1859 and replace lines between %< and %> with its output. */
+ − 1860 /*%<*/
+ − 1861 /* C code produced by gperf version 2.5 (GNU C++ version) */
+ − 1862 /* Command-line: gperf -c -k 1,3 -o -p -r -t */
+ − 1863 struct C_stab_entry { char *name; int c_ext; enum sym_type type; };
+ − 1864
+ − 1865 #define TOTAL_KEYWORDS 41
+ − 1866 #define MIN_WORD_LENGTH 3
+ − 1867 #define MAX_WORD_LENGTH 15
+ − 1868 #define MIN_HASH_VALUE 13
+ − 1869 #define MAX_HASH_VALUE 129
+ − 1870 /* maximum key range = 117, duplicates = 0 */
+ − 1871
+ − 1872 static unsigned int
438
+ − 1873 hash (char *str, unsigned int len)
428
+ − 1874 {
+ − 1875 static unsigned char asso_values[] =
+ − 1876 {
+ − 1877 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1878 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1879 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1880 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1881 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1882 130, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1883 130, 130, 130, 130, 13, 130, 130, 130, 33, 32,
+ − 1884 47, 130, 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1885 5, 130, 130, 20, 32, 130, 130, 130, 130, 130,
+ − 1886 130, 130, 130, 130, 130, 130, 130, 47, 55, 8,
+ − 1887 15, 33, 61, 38, 130, 60, 130, 130, 2, 9,
+ − 1888 10, 62, 59, 130, 28, 27, 50, 19, 3, 130,
+ − 1889 130, 130, 130, 130, 130, 130, 130, 130,
+ − 1890 };
438
+ − 1891 return len +
+ − 1892 asso_values[(unsigned char) str[2]] +
+ − 1893 asso_values[(unsigned char) str[0]];
428
+ − 1894 }
+ − 1895
438
+ − 1896 static struct C_stab_entry *
+ − 1897 in_word_set (char *str, unsigned int len)
428
+ − 1898 {
+ − 1899 static struct C_stab_entry wordlist[] =
+ − 1900 {
+ − 1901 {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
+ − 1902 {"",}, {"",}, {"",}, {"",},
+ − 1903 {"volatile", 0, st_C_typespec},
+ − 1904 {"",}, {"",},
+ − 1905 {"long", 0, st_C_typespec},
+ − 1906 {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
+ − 1907 {"const", 0, st_C_const},
+ − 1908 {"",}, {"",}, {"",},
+ − 1909 {"@end", 0, st_C_objend},
+ − 1910 {"namespace", C_PLPL, st_C_struct},
+ − 1911 {"",},
+ − 1912 {"domain", C_STAR, st_C_struct},
+ − 1913 {"",}, {"",},
+ − 1914 {"@interface", 0, st_C_objprot},
+ − 1915 {"",}, {"",}, {"",},
+ − 1916 {"@implementation", 0, st_C_objimpl},
+ − 1917 {"",}, {"",},
+ − 1918 {"double", 0, st_C_typespec},
+ − 1919 {"",}, {"",},
+ − 1920 {"PSEUDO", 0, st_C_gnumacro},
+ − 1921 {"",}, {"",}, {"",},
+ − 1922 {"SYSCALL", 0, st_C_gnumacro},
+ − 1923 {"",}, {"",},
+ − 1924 {"@protocol", 0, st_C_objprot},
+ − 1925 {"",}, {"",}, {"",},
+ − 1926 {"unsigned", 0, st_C_typespec},
+ − 1927 {"",},
+ − 1928 {"enum", 0, st_C_enum},
+ − 1929 {"",}, {"",},
+ − 1930 {"char", 0, st_C_typespec},
+ − 1931 {"class", C_PLPL, st_C_class},
+ − 1932 {"struct", 0, st_C_struct},
+ − 1933 {"",}, {"",}, {"",}, {"",},
+ − 1934 {"mutable", C_PLPL, st_C_typespec},
+ − 1935 {"void", 0, st_C_typespec},
+ − 1936 {"inline", 0, st_C_inline},
+ − 1937 {"ENTRY", 0, st_C_gnumacro},
+ − 1938 {"",},
+ − 1939 {"signed", 0, st_C_typespec},
+ − 1940 {"",}, {"",},
+ − 1941 {"package", C_JAVA, st_C_ignore},
+ − 1942 {"",}, {"",}, {"",}, {"",}, {"",},
+ − 1943 {"static", 0, st_C_typespec},
+ − 1944 {"",},
+ − 1945 {"define", 0, st_C_define},
+ − 1946 {"",},
+ − 1947 {"union", 0, st_C_union},
+ − 1948 {"DEFUN", 0, st_C_gnumacro},
+ − 1949 {"",}, {"",}, {"",},
+ − 1950 {"extern", 0, st_C_extern},
+ − 1951 {"extends", C_JAVA, st_C_javastruct},
+ − 1952 {"",}, {"",}, {"",},
+ − 1953 {"short", 0, st_C_typespec},
+ − 1954 {"",}, {"",}, {"",}, {"",}, {"",},
+ − 1955 {"explicit", C_PLPL, st_C_typespec},
+ − 1956 {"auto", 0, st_C_typespec},
+ − 1957 {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
+ − 1958 {"",}, {"",},
+ − 1959 {"int", 0, st_C_typespec},
+ − 1960 {"",}, {"",},
+ − 1961 {"typedef", 0, st_C_typedef},
+ − 1962 {"typename", C_PLPL, st_C_typespec},
+ − 1963 {"",},
+ − 1964 {"interface", C_JAVA, st_C_struct},
+ − 1965 {"",},
+ − 1966 {"bool", C_PLPL, st_C_typespec},
+ − 1967 {"",}, {"",}, {"",},
+ − 1968 {"import", C_JAVA, st_C_ignore},
+ − 1969 {"",},
+ − 1970 {"friend", C_PLPL, st_C_ignore},
+ − 1971 {"float", 0, st_C_typespec},
+ − 1972 {"implements", C_JAVA, st_C_javastruct},
+ − 1973 };
+ − 1974
+ − 1975 if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
+ − 1976 {
+ − 1977 register int key = hash (str, len);
+ − 1978
+ − 1979 if (key <= MAX_HASH_VALUE && key >= 0)
+ − 1980 {
+ − 1981 register char *s = wordlist[key].name;
+ − 1982
+ − 1983 if (*s == *str && !strncmp (str + 1, s + 1, len - 1))
+ − 1984 return &wordlist[key];
+ − 1985 }
+ − 1986 }
+ − 1987 return 0;
+ − 1988 }
+ − 1989 /*%>*/
+ − 1990
+ − 1991 enum sym_type C_symtype PP ((char *str, int len, int c_ext));
+ − 1992 enum sym_type
+ − 1993 C_symtype (str, len, c_ext)
+ − 1994 char *str;
+ − 1995 int len;
+ − 1996 int c_ext;
+ − 1997 {
+ − 1998 register struct C_stab_entry *se = in_word_set (str, len);
+ − 1999
+ − 2000 if (se == NULL || (se->c_ext && !(c_ext & se->c_ext)))
+ − 2001 return st_none;
+ − 2002 return se->type;
+ − 2003 }
+ − 2004
+ − 2005 /*
+ − 2006 * C functions and variables are recognized using a simple
+ − 2007 * finite automaton. fvdef is its state variable.
+ − 2008 */
+ − 2009 enum
+ − 2010 {
+ − 2011 fvnone, /* nothing seen */
+ − 2012 fvnameseen, /* function or variable name seen */
+ − 2013 fstartlist, /* func: just after open parenthesis */
+ − 2014 finlist, /* func: in parameter list */
+ − 2015 flistseen, /* func: after parameter list */
+ − 2016 fignore, /* func: before open brace */
+ − 2017 vignore /* var-like: ignore until ';' */
+ − 2018 } fvdef;
+ − 2019
+ − 2020
+ − 2021 /*
+ − 2022 * typedefs are recognized using a simple finite automaton.
+ − 2023 * typdef is its state variable.
+ − 2024 */
+ − 2025 enum
+ − 2026 {
+ − 2027 tnone, /* nothing seen */
+ − 2028 ttypedseen, /* typedef keyword seen */
+ − 2029 tinbody, /* inside typedef body */
+ − 2030 tend, /* just before typedef tag */
+ − 2031 tignore /* junk after typedef tag */
+ − 2032 } typdef;
+ − 2033
+ − 2034
+ − 2035 /*
+ − 2036 * struct-like structures (enum, struct and union) are recognized
+ − 2037 * using another simple finite automaton. `structdef' is its state
+ − 2038 * variable.
+ − 2039 */
+ − 2040 enum
+ − 2041 {
+ − 2042 snone, /* nothing seen yet */
+ − 2043 skeyseen, /* struct-like keyword seen */
+ − 2044 stagseen, /* struct-like tag seen */
+ − 2045 scolonseen, /* colon seen after struct-like tag */
+ − 2046 sinbody /* in struct body: recognize member func defs*/
+ − 2047 } structdef;
+ − 2048
+ − 2049 /*
+ − 2050 * When structdef is stagseen, scolonseen, or sinbody, structtag is the
+ − 2051 * struct tag, and structtype is the type of the preceding struct-like
+ − 2052 * keyword.
+ − 2053 */
+ − 2054 char *structtag = "<uninited>";
+ − 2055 enum sym_type structtype;
+ − 2056
+ − 2057 #ifdef OO_BROWSER
+ − 2058 void
438
+ − 2059 oo_browser_check_and_clear_structtype(void)
428
+ − 2060 {
+ − 2061 /* Allow for multiple enum_label tags. */
+ − 2062 if (structtype != st_C_enum)
+ − 2063 structtype = st_none;
+ − 2064 }
+ − 2065 #endif
+ − 2066
+ − 2067 /*
+ − 2068 * When objdef is different from onone, objtag is the name of the class.
+ − 2069 */
+ − 2070 char *objtag = "<uninited>";
+ − 2071
+ − 2072 /*
+ − 2073 * Yet another little state machine to deal with preprocessor lines.
+ − 2074 */
+ − 2075 enum
+ − 2076 {
+ − 2077 dnone, /* nothing seen */
+ − 2078 dsharpseen, /* '#' seen as first char on line */
+ − 2079 ddefineseen, /* '#' and 'define' seen */
+ − 2080 dignorerest /* ignore rest of line */
+ − 2081 } definedef;
+ − 2082
+ − 2083 /*
+ − 2084 * State machine for Objective C protocols and implementations.
+ − 2085 * Tom R.Hageman <tom@basil.icce.rug.nl>
+ − 2086 */
+ − 2087 enum
+ − 2088 {
+ − 2089 onone, /* nothing seen */
+ − 2090 oprotocol, /* @interface or @protocol seen */
+ − 2091 oimplementation, /* @implementations seen */
+ − 2092 otagseen, /* class name seen */
+ − 2093 oparenseen, /* parenthesis before category seen */
+ − 2094 ocatseen, /* category name seen */
+ − 2095 oinbody, /* in @implementation body */
+ − 2096 omethodsign, /* in @implementation body, after +/- */
+ − 2097 omethodtag, /* after method name */
+ − 2098 omethodcolon, /* after method colon */
+ − 2099 omethodparm, /* after method parameter */
+ − 2100 oignore /* wait for @end */
+ − 2101 } objdef;
+ − 2102
+ − 2103 /*
+ − 2104 * Use this structure to keep info about the token read, and how it
+ − 2105 * should be tagged. Used by the make_C_tag function to build a tag.
+ − 2106 */
+ − 2107 typedef struct
+ − 2108 {
+ − 2109 bool valid;
+ − 2110 char *str;
+ − 2111 bool named;
+ − 2112 int linelen;
+ − 2113 int lineno;
+ − 2114 long linepos;
+ − 2115 char *buffer;
+ − 2116 } token;
+ − 2117
+ − 2118 token tok; /* latest token read */
+ − 2119
+ − 2120 /*
+ − 2121 * Set this to TRUE, and the next token considered is called a function.
+ − 2122 * Used only for GNU emacs's function-defining macros.
+ − 2123 */
+ − 2124 bool next_token_is_func;
+ − 2125
+ − 2126 /*
+ − 2127 * TRUE in the rules part of a yacc file, FALSE outside (parse as C).
+ − 2128 */
+ − 2129 bool yacc_rules;
+ − 2130
+ − 2131 /*
+ − 2132 * methodlen is the length of the method name stored in token_name.
+ − 2133 */
+ − 2134 int methodlen;
+ − 2135
+ − 2136 #ifdef OO_BROWSER
+ − 2137 void
438
+ − 2138 oo_browser_clear_all_globals(void)
428
+ − 2139 {
+ − 2140 /* Initialize globals so there is no carry over between files. */
+ − 2141 oo_browser_construct = C_NULL;
+ − 2142 fvdef = fvnone; typdef = tnone; structdef = snone;
+ − 2143 definedef = dnone; objdef = onone;
+ − 2144 structtype = st_none;
+ − 2145 next_token_is_func = yacc_rules = FALSE;
+ − 2146 }
+ − 2147
+ − 2148 void
438
+ − 2149 oo_browser_clear_some_globals(void)
428
+ − 2150 {
+ − 2151 oo_browser_construct = C_NULL;
+ − 2152 structtype = st_none;
+ − 2153 }
+ − 2154 #endif
+ − 2155
+ − 2156 /*
+ − 2157 * consider_token ()
+ − 2158 * checks to see if the current token is at the start of a
+ − 2159 * function or variable, or corresponds to a typedef, or
+ − 2160 * is a struct/union/enum tag, or #define, or an enum constant.
+ − 2161 *
+ − 2162 * *IS_FUNC gets TRUE iff the token is a function or #define macro
+ − 2163 * with args. C_EXT is which language we are looking at.
+ − 2164 *
+ − 2165 * In the future we will need some way to adjust where the end of
+ − 2166 * the token is; for instance, implementing the C++ keyword
+ − 2167 * `operator' properly will adjust the end of the token to be after
+ − 2168 * whatever follows `operator'.
+ − 2169 *
+ − 2170 * Globals
+ − 2171 * fvdef IN OUT
+ − 2172 * structdef IN OUT
+ − 2173 * definedef IN OUT
+ − 2174 * typdef IN OUT
+ − 2175 * objdef IN OUT
+ − 2176 * next_token_is_func IN OUT
+ − 2177 */
+ − 2178 bool consider_token PP ((char *str, int len, int c, int c_ext,
+ − 2179 int cblev, int parlev, bool *is_func_or_var));
+ − 2180 bool
+ − 2181 consider_token (str, len, c, c_ext, cblev, parlev, is_func_or_var)
+ − 2182 register char *str; /* IN: token pointer */
+ − 2183 register int len; /* IN: token length */
+ − 2184 register int c; /* IN: first char after the token */
+ − 2185 int c_ext; /* IN: C extensions mask */
+ − 2186 int cblev; /* IN: curly brace level */
+ − 2187 int parlev; /* IN: parenthesis level */
+ − 2188 bool *is_func_or_var; /* OUT: function or variable found */
+ − 2189 {
+ − 2190 enum sym_type toktype = C_symtype (str, len, c_ext);
+ − 2191
+ − 2192 #ifdef OO_BROWSER
+ − 2193 switch (toktype)
+ − 2194 {
+ − 2195 case st_C_struct:
+ − 2196 set_construct(C_STRUCTURE);
+ − 2197 break;
+ − 2198 case st_C_union:
+ − 2199 set_construct(C_UNION);
+ − 2200 break;
+ − 2201 case st_C_class:
+ − 2202 set_construct(C_CLASS);
+ − 2203 break;
+ − 2204 case st_C_enum:
+ − 2205 set_construct(C_ENUMERATION);
+ − 2206 break;
+ − 2207 case st_C_typedef:
+ − 2208 set_construct(C_TYPE);
+ − 2209 break;
+ − 2210 case st_C_extern:
+ − 2211 set_construct(C_EXTERN);
+ − 2212 break;
+ − 2213 case st_C_inline:
+ − 2214 set_construct(C_FUNCTION);
+ − 2215 break;
+ − 2216 }
+ − 2217 #endif
+ − 2218
+ − 2219 /*
+ − 2220 * Advance the definedef state machine.
+ − 2221 */
+ − 2222 switch (definedef)
+ − 2223 {
+ − 2224 case dnone:
+ − 2225 /* We're not on a preprocessor line. */
+ − 2226 break;
+ − 2227 case dsharpseen:
+ − 2228 if (toktype == st_C_define)
+ − 2229 {
+ − 2230 definedef = ddefineseen;
+ − 2231 }
+ − 2232 else
+ − 2233 {
+ − 2234 definedef = dignorerest;
+ − 2235 }
+ − 2236 return FALSE;
+ − 2237 case ddefineseen:
+ − 2238 /*
+ − 2239 * Make a tag for any macro, unless it is a constant
+ − 2240 * and constantypedefs is FALSE.
+ − 2241 */
+ − 2242 definedef = dignorerest;
+ − 2243 #ifndef OO_BROWSER
+ − 2244 *is_func_or_var = (c == '(');
+ − 2245 #else
+ − 2246 {
+ − 2247 char *p = str + len * sizeof(char);
+ − 2248
+ − 2249 if (*p == '(')
+ − 2250 /* This must be a macro since there is no
+ − 2251 whitespace between the opening parenthesis
+ − 2252 and the definition name. */
+ − 2253 *is_func_or_var = TRUE;
+ − 2254 else
+ − 2255 {
+ − 2256 *is_func_or_var = FALSE;
+ − 2257
+ − 2258 /* Handle possible whitespace between macro tag and opening
+ − 2259 parenthesis and ensure this is an actual macro.
+ − 2260 -- Bob Weiner, Altrasoft, 11/19/1997 */
+ − 2261 while (*p && isspace(*p)) p++;
+ − 2262 if (*p) c = *p;
+ − 2263
+ − 2264 /* Skip over nested parentheses. */
+ − 2265 if (c == '(')
+ − 2266 {
+ − 2267 short depth = 1;
+ − 2268
+ − 2269 while (*++p && depth > 0 && *p != '\n')
+ − 2270 {
+ − 2271 switch (*p)
+ − 2272 {
+ − 2273 case '(':
+ − 2274 depth++; break;
+ − 2275 case ')':
+ − 2276 depth--; break;
+ − 2277 }
+ − 2278 }
+ − 2279
+ − 2280 /* If this is a macro, we have just passed
+ − 2281 the arguments and there will be more on
+ − 2282 the line before the NULL character that marks
+ − 2283 the end of the line token. */
+ − 2284 while (*p == ' ' || *p == '\t') p++;
+ − 2285 if (*p) *is_func_or_var = TRUE;
+ − 2286 }
+ − 2287 }
+ − 2288 }
+ − 2289
+ − 2290 set_construct((*is_func_or_var) ? C_MACRO : C_CONSTANT);
+ − 2291 #endif
+ − 2292 if (!*is_func_or_var && !constantypedefs)
+ − 2293 return FALSE;
+ − 2294 else
+ − 2295 return TRUE;
+ − 2296 case dignorerest:
+ − 2297 return FALSE;
+ − 2298 default:
+ − 2299 error ("internal error: definedef value.", (char *)NULL);
+ − 2300 }
+ − 2301
+ − 2302 /*
+ − 2303 * Now typedefs
+ − 2304 */
+ − 2305 switch (typdef)
+ − 2306 {
+ − 2307 case tnone:
+ − 2308 if (toktype == st_C_typedef)
+ − 2309 {
+ − 2310 if (typedefs)
+ − 2311 typdef = ttypedseen;
+ − 2312 fvdef = fvnone;
+ − 2313 return FALSE;
+ − 2314 }
+ − 2315 break;
+ − 2316 case ttypedseen:
+ − 2317 switch (toktype)
+ − 2318 {
+ − 2319 case st_C_const:
+ − 2320 set_construct(C_CONSTANT);
+ − 2321 /* fall through */
+ − 2322 case st_none:
+ − 2323 case st_C_typespec:
+ − 2324 #ifdef OO_BROWSER
+ − 2325 case st_C_extern:
+ − 2326 #endif
+ − 2327 typdef = tend;
+ − 2328 break;
+ − 2329 case st_C_struct:
+ − 2330 case st_C_enum:
+ − 2331 #ifdef OO_BROWSER
+ − 2332 case st_C_union:
+ − 2333 case st_C_class:
+ − 2334 #endif
+ − 2335 break;
+ − 2336 }
+ − 2337 /* Do not return here, so the structdef stuff has a chance. */
+ − 2338 break;
+ − 2339 case tend:
+ − 2340 switch (toktype)
+ − 2341 {
+ − 2342 case st_C_const:
+ − 2343 set_construct(C_CONSTANT);
+ − 2344 /* fall through */
+ − 2345 case st_C_typespec:
+ − 2346 case st_C_struct:
+ − 2347 case st_C_enum:
+ − 2348 #ifdef OO_BROWSER
+ − 2349 case st_C_extern:
+ − 2350 case st_C_union:
+ − 2351 case st_C_class:
+ − 2352 #endif
+ − 2353 return FALSE;
+ − 2354 }
+ − 2355 return TRUE;
+ − 2356 }
+ − 2357
+ − 2358 /*
+ − 2359 * This structdef business is currently only invoked when cblev==0.
+ − 2360 * It should be recursively invoked whatever the curly brace level,
+ − 2361 * and a stack of states kept, to allow for definitions of structs
+ − 2362 * within structs.
+ − 2363 *
+ − 2364 * This structdef business is NOT invoked when we are ctags and the
+ − 2365 * file is plain C. This is because a struct tag may have the same
+ − 2366 * name as another tag, and this loses with ctags.
+ − 2367 */
+ − 2368 switch (toktype)
+ − 2369 {
+ − 2370 case st_C_javastruct:
+ − 2371 if (structdef == stagseen)
+ − 2372 structdef = scolonseen;
+ − 2373 return FALSE;
+ − 2374 case st_C_struct:
+ − 2375 case st_C_enum:
+ − 2376 #ifdef OO_BROWSER
+ − 2377 case st_C_union:
+ − 2378 case st_C_class:
+ − 2379 case st_C_extern:
+ − 2380 #endif
+ − 2381 if (typdef == ttypedseen
+ − 2382 || (typedefs_and_cplusplus && cblev == 0 && structdef == snone))
+ − 2383 {
+ − 2384 structdef = skeyseen;
+ − 2385 structtype = toktype;
+ − 2386 }
+ − 2387 return FALSE;
+ − 2388 }
+ − 2389
+ − 2390 if (structdef == skeyseen)
+ − 2391 {
+ − 2392 /* Save the tag for struct/union/class, for functions and variables
+ − 2393 that may be defined inside. */
+ − 2394 #ifndef OO_BROWSER
+ − 2395 if (structtype == st_C_struct)
+ − 2396 #else
+ − 2397 if (structtype == st_C_struct
+ − 2398 || structtype == st_C_union
+ − 2399 || structtype == st_C_class)
+ − 2400 #endif
+ − 2401 structtag = savenstr (str, len);
+ − 2402 else
+ − 2403 structtag = "<enum>";
+ − 2404 structdef = stagseen;
+ − 2405 return TRUE;
+ − 2406 }
+ − 2407
+ − 2408 /* Avoid entering fvdef stuff if typdef is going on. */
+ − 2409 if (typdef != tnone)
+ − 2410 {
+ − 2411 definedef = dnone;
+ − 2412 return FALSE;
+ − 2413 }
+ − 2414
+ − 2415 /* Detect GNU macros.
+ − 2416
+ − 2417 DEFUN note for writers of emacs C code:
+ − 2418 The DEFUN macro, used in emacs C source code, has a first arg
+ − 2419 that is a string (the lisp function name), and a second arg that
+ − 2420 is a C function name. Since etags skips strings, the second arg
+ − 2421 is tagged. This is unfortunate, as it would be better to tag the
+ − 2422 first arg. The simplest way to deal with this problem would be
+ − 2423 to name the tag with a name built from the function name, by
+ − 2424 removing the initial 'F' character and substituting '-' for '_'.
+ − 2425 Anyway, this assumes that the conventions of naming lisp
+ − 2426 functions will never change. Currently, this method is not
+ − 2427 implemented, so writers of emacs code are recommended to put the
+ − 2428 first two args of a DEFUN on the same line. */
+ − 2429 if (definedef == dnone && toktype == st_C_gnumacro)
+ − 2430 {
+ − 2431 next_token_is_func = TRUE;
+ − 2432 return FALSE;
+ − 2433 }
+ − 2434 if (next_token_is_func)
+ − 2435 {
+ − 2436 next_token_is_func = FALSE;
+ − 2437 fvdef = fignore;
+ − 2438 *is_func_or_var = TRUE;
+ − 2439 return TRUE;
+ − 2440 }
+ − 2441
+ − 2442 /* Detect Objective C constructs. */
+ − 2443 switch (objdef)
+ − 2444 {
+ − 2445 case onone:
+ − 2446 switch (toktype)
+ − 2447 {
+ − 2448 case st_C_objprot:
+ − 2449 #ifdef OO_BROWSER
+ − 2450 set_construct(C_OBJC);
+ − 2451 #endif
+ − 2452 objdef = oprotocol;
+ − 2453 return FALSE;
+ − 2454 case st_C_objimpl:
+ − 2455 #ifdef OO_BROWSER
+ − 2456 set_construct(C_OBJC);
+ − 2457 #endif
+ − 2458 objdef = oimplementation;
+ − 2459 return FALSE;
+ − 2460 }
+ − 2461 break;
+ − 2462 case oimplementation:
+ − 2463 /* Save the class tag for functions or variables defined inside. */
+ − 2464 objtag = savenstr (str, len);
+ − 2465 objdef = oinbody;
+ − 2466 return FALSE;
+ − 2467 case oprotocol:
+ − 2468 /* Save the class tag for categories. */
+ − 2469 objtag = savenstr (str, len);
+ − 2470 objdef = otagseen;
+ − 2471 *is_func_or_var = TRUE;
+ − 2472 return TRUE;
+ − 2473 case oparenseen:
+ − 2474 objdef = ocatseen;
+ − 2475 *is_func_or_var = TRUE;
+ − 2476 return TRUE;
+ − 2477 case oinbody:
+ − 2478 break;
+ − 2479 case omethodsign:
+ − 2480 if (parlev == 0)
+ − 2481 {
+ − 2482 objdef = omethodtag;
+ − 2483 methodlen = len;
+ − 2484 grow_linebuffer (&token_name, methodlen + 1);
+ − 2485 strncpy (token_name.buffer, str, len);
+ − 2486 token_name.buffer[methodlen] = '\0';
+ − 2487 token_name.len = methodlen;
+ − 2488 return TRUE;
+ − 2489 }
+ − 2490 return FALSE;
+ − 2491 case omethodcolon:
+ − 2492 if (parlev == 0)
+ − 2493 objdef = omethodparm;
+ − 2494 return FALSE;
+ − 2495 case omethodparm:
+ − 2496 if (parlev == 0)
+ − 2497 {
+ − 2498 objdef = omethodtag;
+ − 2499 methodlen += len;
+ − 2500 grow_linebuffer (&token_name, methodlen + 1);
+ − 2501 strncat (token_name.buffer, str, len);
+ − 2502 token_name.len = methodlen;
+ − 2503 return TRUE;
+ − 2504 }
+ − 2505 return FALSE;
+ − 2506 case oignore:
+ − 2507 if (toktype == st_C_objend)
+ − 2508 {
+ − 2509 /* Memory leakage here: the string pointed by objtag is
+ − 2510 never released, because many tests would be needed to
+ − 2511 avoid breaking on incorrect input code. The amount of
+ − 2512 memory leaked here is the sum of the lengths of the
+ − 2513 class tags.
+ − 2514 free (objtag); */
+ − 2515 objdef = onone;
+ − 2516 }
+ − 2517 return FALSE;
+ − 2518 }
+ − 2519
+ − 2520 /* A function, variable or enum constant? */
+ − 2521 switch (toktype)
+ − 2522 {
+ − 2523 case st_C_const:
+ − 2524 set_construct(C_CONSTANT);
+ − 2525 /* fall through */
+ − 2526 case st_C_typespec:
+ − 2527 #ifdef OO_BROWSER
+ − 2528 case st_C_extern:
+ − 2529 #endif
+ − 2530 if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
+ − 2531 fvdef = fvnone; /* should be useless */
+ − 2532 return FALSE;
+ − 2533 case st_C_ignore:
+ − 2534 fvdef = vignore;
+ − 2535 return FALSE;
+ − 2536 case st_none:
+ − 2537 if (constantypedefs && structdef == sinbody && structtype == st_C_enum)
+ − 2538 #ifdef OO_BROWSER
+ − 2539 {
+ − 2540 oo_browser_construct = C_ENUM_LABEL;
+ − 2541 #endif
+ − 2542 return TRUE;
+ − 2543 #ifdef OO_BROWSER
+ − 2544 }
+ − 2545 #endif
+ − 2546 if (fvdef == fvnone)
+ − 2547 {
+ − 2548 fvdef = fvnameseen; /* function or variable */
+ − 2549 *is_func_or_var = TRUE;
+ − 2550 return TRUE;
+ − 2551 }
+ − 2552 }
+ − 2553
+ − 2554 return FALSE;
+ − 2555 }
+ − 2556
+ − 2557 /*
+ − 2558 * C_entries ()
+ − 2559 * This routine finds functions, variables, typedefs,
+ − 2560 * #define's, enum constants and struct/union/enum definitions in
+ − 2561 * #C syntax and adds them to the list.
+ − 2562 */
+ − 2563 #define current_lb_is_new (newndx == curndx)
+ − 2564 #define switch_line_buffers() (curndx = 1 - curndx)
+ − 2565
+ − 2566 #define curlb (lbs[curndx].lb)
+ − 2567 #define othlb (lbs[1-curndx].lb)
+ − 2568 #define newlb (lbs[newndx].lb)
+ − 2569 #define curlinepos (lbs[curndx].linepos)
+ − 2570 #define othlinepos (lbs[1-curndx].linepos)
+ − 2571 #define newlinepos (lbs[newndx].linepos)
+ − 2572
+ − 2573 #define CNL_SAVE_DEFINEDEF() \
+ − 2574 do { \
+ − 2575 curlinepos = charno; \
+ − 2576 lineno++; \
+ − 2577 linecharno = charno; \
+ − 2578 charno += readline (&curlb, inf); \
+ − 2579 lp = curlb.buffer; \
+ − 2580 quotednl = FALSE; \
+ − 2581 newndx = curndx; \
+ − 2582 } while (0)
+ − 2583
+ − 2584 #define CNL() \
+ − 2585 do { \
+ − 2586 CNL_SAVE_DEFINEDEF(); \
+ − 2587 if (savetok.valid) \
+ − 2588 { \
+ − 2589 tok = savetok; \
+ − 2590 savetok.valid = FALSE; \
+ − 2591 } \
+ − 2592 definedef = dnone; \
+ − 2593 } while (0)
+ − 2594
+ − 2595
+ − 2596 void make_C_tag PP ((bool isfun));
+ − 2597 void
+ − 2598 make_C_tag (isfun)
+ − 2599 bool isfun;
+ − 2600 {
+ − 2601 /* This function should never be called when tok.valid is FALSE, but
+ − 2602 we must protect against invalid input or internal errors. */
+ − 2603 if (tok.valid)
+ − 2604 {
+ − 2605 if (traditional_tag_style)
+ − 2606 {
+ − 2607 /* This was the original code. Now we call new_pfnote instead,
+ − 2608 which uses the new method for naming tags (see new_pfnote). */
+ − 2609 char *name = NULL;
+ − 2610
+ − 2611 if (CTAGS || tok.named)
+ − 2612 name = savestr (token_name.buffer);
+ − 2613 pfnote (name, isfun,
+ − 2614 tok.buffer, tok.linelen, tok.lineno, tok.linepos);
+ − 2615 }
+ − 2616 else
+ − 2617 new_pfnote (token_name.buffer, token_name.len, isfun,
+ − 2618 tok.buffer, tok.linelen, tok.lineno, tok.linepos);
+ − 2619 tok.valid = FALSE;
+ − 2620 }
+ − 2621 else if (DEBUG)
+ − 2622 abort ();
+ − 2623 }
+ − 2624
+ − 2625
+ − 2626 void
+ − 2627 C_entries (c_ext, inf)
+ − 2628 int c_ext; /* extension of C */
+ − 2629 FILE *inf; /* input file */
+ − 2630 {
+ − 2631 register char c; /* latest char read; '\0' for end of line */
+ − 2632 register char *lp; /* pointer one beyond the character `c' */
+ − 2633 int curndx, newndx; /* indices for current and new lb */
+ − 2634 register int tokoff; /* offset in line of start of current token */
+ − 2635 register int toklen; /* length of current token */
+ − 2636 char *qualifier; /* string used to qualify names */
+ − 2637 int qlen; /* length of qualifier */
+ − 2638 int cblev; /* current curly brace level */
+ − 2639 int parlev; /* current parenthesis level */
+ − 2640 bool incomm, inquote, inchar, quotednl, midtoken;
+ − 2641 bool cplpl, cjava;
4932
+ − 2642 token savetok = {0}; /* token saved during preprocessor handling */
428
+ − 2643
+ − 2644
+ − 2645 tokoff = toklen = 0; /* keep compiler quiet */
+ − 2646 curndx = newndx = 0;
+ − 2647 lineno = 0;
+ − 2648 charno = 0;
+ − 2649 lp = curlb.buffer;
+ − 2650 *lp = 0;
+ − 2651
+ − 2652 fvdef = fvnone; typdef = tnone; structdef = snone;
+ − 2653 definedef = dnone; objdef = onone;
+ − 2654 next_token_is_func = yacc_rules = FALSE;
+ − 2655 midtoken = inquote = inchar = incomm = quotednl = FALSE;
+ − 2656 tok.valid = savetok.valid = FALSE;
+ − 2657 cblev = 0;
+ − 2658 parlev = 0;
+ − 2659 cplpl = (c_ext & C_PLPL) == C_PLPL;
+ − 2660 cjava = (c_ext & C_JAVA) == C_JAVA;
+ − 2661 if (cjava)
+ − 2662 { qualifier = "."; qlen = 1; }
+ − 2663 else
+ − 2664 { qualifier = "::"; qlen = 2; }
+ − 2665
+ − 2666 while (!feof (inf))
+ − 2667 {
+ − 2668 c = *lp++;
+ − 2669 if (c == '\\')
+ − 2670 {
+ − 2671 /* If we're at the end of the line, the next character is a
+ − 2672 '\0'; don't skip it, because it's the thing that tells us
+ − 2673 to read the next line. */
+ − 2674 if (*lp == '\0')
+ − 2675 {
+ − 2676 quotednl = TRUE;
+ − 2677 continue;
+ − 2678 }
+ − 2679 lp++;
+ − 2680 c = ' ';
+ − 2681 }
+ − 2682 else if (incomm)
+ − 2683 {
+ − 2684 switch (c)
+ − 2685 {
+ − 2686 case '*':
+ − 2687 if (*lp == '/')
+ − 2688 {
+ − 2689 c = *lp++;
+ − 2690 incomm = FALSE;
+ − 2691 }
+ − 2692 break;
+ − 2693 case '\0':
+ − 2694 /* Newlines inside comments do not end macro definitions in
+ − 2695 traditional cpp. */
+ − 2696 CNL_SAVE_DEFINEDEF ();
+ − 2697 break;
+ − 2698 }
+ − 2699 continue;
+ − 2700 }
+ − 2701 else if (inquote)
+ − 2702 {
+ − 2703 switch (c)
+ − 2704 {
+ − 2705 case '"':
+ − 2706 inquote = FALSE;
+ − 2707 break;
+ − 2708 case '\0':
+ − 2709 /* Newlines inside strings do not end macro definitions
+ − 2710 in traditional cpp, even though compilers don't
+ − 2711 usually accept them. */
+ − 2712 CNL_SAVE_DEFINEDEF ();
+ − 2713 break;
+ − 2714 }
+ − 2715 continue;
+ − 2716 }
+ − 2717 else if (inchar)
+ − 2718 {
+ − 2719 switch (c)
+ − 2720 {
+ − 2721 case '\0':
+ − 2722 /* Hmmm, something went wrong. */
+ − 2723 CNL ();
+ − 2724 /* FALLTHRU */
+ − 2725 case '\'':
+ − 2726 inchar = FALSE;
+ − 2727 break;
+ − 2728 }
+ − 2729 continue;
+ − 2730 }
+ − 2731 else
+ − 2732 switch (c)
+ − 2733 {
+ − 2734 case '"':
+ − 2735 inquote = TRUE;
+ − 2736 if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ − 2737 fvdef = fvnone;
+ − 2738 continue;
+ − 2739 case '\'':
+ − 2740 inchar = TRUE;
+ − 2741 if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ − 2742 fvdef = fvnone;
+ − 2743 continue;
+ − 2744 case '/':
+ − 2745 if (*lp == '*')
+ − 2746 {
+ − 2747 lp++;
+ − 2748 incomm = TRUE;
+ − 2749 continue;
+ − 2750 }
+ − 2751 else if (/* cplpl && */ *lp == '/')
+ − 2752 {
+ − 2753 c = '\0';
+ − 2754 break;
+ − 2755 }
+ − 2756 else
+ − 2757 break;
+ − 2758 case '%':
+ − 2759 if ((c_ext & YACC) && *lp == '%')
+ − 2760 {
+ − 2761 /* entering or exiting rules section in yacc file */
+ − 2762 lp++;
+ − 2763 definedef = dnone; fvdef = fvnone;
+ − 2764 typdef = tnone; structdef = snone;
+ − 2765 next_token_is_func = FALSE;
+ − 2766 midtoken = inquote = inchar = incomm = quotednl = FALSE;
+ − 2767 cblev = 0;
+ − 2768 yacc_rules = !yacc_rules;
+ − 2769 continue;
+ − 2770 }
+ − 2771 else
+ − 2772 break;
+ − 2773 case '#':
+ − 2774 if (definedef == dnone)
+ − 2775 {
+ − 2776 char *cp;
+ − 2777 bool cpptoken = TRUE;
+ − 2778
+ − 2779 /* Look back on this line. If all blanks, or nonblanks
+ − 2780 followed by an end of comment, this is a preprocessor
+ − 2781 token. */
+ − 2782 for (cp = newlb.buffer; cp < lp-1; cp++)
+ − 2783 if (!iswhite (*cp))
+ − 2784 {
+ − 2785 if (*cp == '*' && *(cp+1) == '/')
+ − 2786 {
+ − 2787 cp++;
+ − 2788 cpptoken = TRUE;
+ − 2789 }
+ − 2790 else
+ − 2791 cpptoken = FALSE;
+ − 2792 }
+ − 2793 if (cpptoken)
+ − 2794 definedef = dsharpseen;
+ − 2795 } /* if (definedef == dnone) */
+ − 2796
+ − 2797 continue;
+ − 2798 } /* switch (c) */
+ − 2799
+ − 2800
+ − 2801 /* Consider token only if some complicated conditions are satisfied. */
+ − 2802 if ((definedef != dnone
+ − 2803 || (cblev == 0 && structdef != scolonseen)
+ − 2804 || (cblev == 1 && cplpl && structdef == sinbody)
+ − 2805 || (structdef == sinbody && structtype == st_C_enum))
+ − 2806 && typdef != tignore
+ − 2807 && definedef != dignorerest
+ − 2808 && fvdef != finlist)
+ − 2809 {
+ − 2810 if (midtoken)
+ − 2811 {
+ − 2812 if (endtoken (c))
+ − 2813 {
+ − 2814 if (c == ':' && cplpl && *lp == ':' && begtoken(*(lp + 1)))
+ − 2815 {
+ − 2816 /*
+ − 2817 * This handles :: in the middle, but not at the
+ − 2818 * beginning of an identifier.
+ − 2819 */
+ − 2820 lp += 2;
+ − 2821 toklen += 3;
+ − 2822 #ifdef OO_BROWSER
+ − 2823 set_construct(C_METHOD);
+ − 2824 #endif
+ − 2825 }
+ − 2826 else
+ − 2827 {
+ − 2828 bool funorvar = FALSE;
+ − 2829
+ − 2830 if (yacc_rules
+ − 2831 || consider_token (newlb.buffer + tokoff, toklen, c,
+ − 2832 c_ext, cblev, parlev, &funorvar))
+ − 2833 {
+ − 2834 tok.named = FALSE;
+ − 2835 if (structdef == sinbody
+ − 2836 && definedef == dnone
+ − 2837 && funorvar)
+ − 2838 /* function or var defined in C++ class body */
+ − 2839 {
+ − 2840 int len = strlen (structtag) + qlen + toklen;
+ − 2841 grow_linebuffer (&token_name, len + 1);
+ − 2842 strcpy (token_name.buffer, structtag);
+ − 2843 strcat (token_name.buffer, qualifier);
+ − 2844 strncat (token_name.buffer,
+ − 2845 newlb.buffer + tokoff, toklen);
+ − 2846 token_name.len = len;
+ − 2847 tok.named = TRUE;
+ − 2848 #ifdef OO_BROWSER
+ − 2849 oo_browser_construct = C_METHOD;
+ − 2850 #endif
+ − 2851 }
+ − 2852 else if (objdef == ocatseen)
+ − 2853 /* Objective C category */
+ − 2854 {
+ − 2855 int len = strlen (objtag) + 2 + toklen;
+ − 2856 grow_linebuffer (&token_name, len + 1);
+ − 2857 strcpy (token_name.buffer, objtag);
+ − 2858 strcat (token_name.buffer, "(");
+ − 2859 strncat (token_name.buffer,
+ − 2860 newlb.buffer + tokoff, toklen);
+ − 2861 strcat (token_name.buffer, ")");
+ − 2862 token_name.len = len;
+ − 2863 tok.named = TRUE;
+ − 2864 #ifdef OO_BROWSER
+ − 2865 oo_browser_construct = C_OBJC;
+ − 2866 #endif
+ − 2867 }
+ − 2868 else if (objdef == omethodtag
+ − 2869 || objdef == omethodparm)
+ − 2870 /* Objective C method */
+ − 2871 {
+ − 2872 tok.named = TRUE;
+ − 2873 #ifdef OO_BROWSER
+ − 2874 oo_browser_construct = C_OBJC;
+ − 2875 #endif
+ − 2876 }
+ − 2877 else
+ − 2878 {
+ − 2879 grow_linebuffer (&token_name, toklen + 1);
+ − 2880 strncpy (token_name.buffer,
+ − 2881 newlb.buffer + tokoff, toklen);
+ − 2882 token_name.buffer[toklen] = '\0';
+ − 2883 token_name.len = toklen;
+ − 2884 /* Name macros. */
+ − 2885 tok.named
+ − 2886 = (structdef == stagseen
+ − 2887 || typdef == tend
+ − 2888 #ifdef OO_BROWSER
+ − 2889 /* Also name #define constants,
+ − 2890 enumerations and enum_labels.
+ − 2891 Conditionalize `funorvar' reference
+ − 2892 here or #defines will appear without
+ − 2893 their #names.
+ − 2894 -- Bob Weiner, Altrasoft, 4/25/1998 */
+ − 2895 || ((oo_browser_format || funorvar)
+ − 2896 && definedef == dignorerest)
+ − 2897 || (oo_browser_format
+ − 2898 && (oo_browser_construct == C_ENUMERATION
+ − 2899 || oo_browser_construct == C_ENUM_LABEL))
+ − 2900 #else
+ − 2901 || (funorvar
+ − 2902 && definedef == dignorerest)
+ − 2903 #endif
+ − 2904 );
+ − 2905 }
+ − 2906 tok.lineno = lineno;
+ − 2907 tok.linelen = tokoff + toklen + 1;
+ − 2908 tok.buffer = newlb.buffer;
+ − 2909 tok.linepos = newlinepos;
+ − 2910 tok.valid = TRUE;
+ − 2911
+ − 2912 if (definedef == dnone
+ − 2913 && (fvdef == fvnameseen
+ − 2914 || structdef == stagseen
+ − 2915 || typdef == tend
+ − 2916 || objdef != onone))
+ − 2917 {
+ − 2918 if (current_lb_is_new)
+ − 2919 switch_line_buffers ();
+ − 2920 }
+ − 2921 else
+ − 2922 make_C_tag (funorvar);
+ − 2923 }
+ − 2924 midtoken = FALSE;
+ − 2925 }
+ − 2926 } /* if (endtoken (c)) */
+ − 2927 else if (intoken (c))
+ − 2928 {
+ − 2929 toklen++;
+ − 2930 continue;
+ − 2931 }
+ − 2932 } /* if (midtoken) */
+ − 2933 else if (begtoken (c))
+ − 2934 {
+ − 2935 switch (definedef)
+ − 2936 {
+ − 2937 case dnone:
+ − 2938 switch (fvdef)
+ − 2939 {
+ − 2940 case fstartlist:
+ − 2941 fvdef = finlist;
+ − 2942 continue;
+ − 2943 case flistseen:
+ − 2944 #ifdef OO_BROWSER
+ − 2945 set_construct(C_MACRO);
+ − 2946 #endif
+ − 2947 make_C_tag (TRUE); /* a function */
+ − 2948 fvdef = fignore;
+ − 2949 break;
+ − 2950 case fvnameseen:
+ − 2951 fvdef = fvnone;
+ − 2952 break;
+ − 2953 }
+ − 2954 if (structdef == stagseen && !cjava)
+ − 2955 structdef = snone;
+ − 2956 break;
+ − 2957 case dsharpseen:
+ − 2958 savetok = tok;
+ − 2959 }
+ − 2960 if (!yacc_rules || lp == newlb.buffer + 1)
+ − 2961 {
+ − 2962 tokoff = lp - 1 - newlb.buffer;
+ − 2963 toklen = 1;
+ − 2964 midtoken = TRUE;
+ − 2965 }
+ − 2966 continue;
+ − 2967 } /* if (begtoken) */
+ − 2968 } /* if must look at token */
+ − 2969
+ − 2970
+ − 2971 /* Detect end of line, colon, comma, semicolon and various braces
+ − 2972 after having handled a token.*/
+ − 2973 switch (c)
+ − 2974 {
+ − 2975 case ':':
+ − 2976 if (definedef != dnone)
+ − 2977 break;
+ − 2978 switch (objdef)
+ − 2979 {
+ − 2980 case otagseen:
+ − 2981 objdef = oignore;
+ − 2982 make_C_tag (TRUE); /* an Objective C class */
+ − 2983 break;
+ − 2984 case omethodtag:
+ − 2985 case omethodparm:
+ − 2986 objdef = omethodcolon;
+ − 2987 methodlen += 1;
+ − 2988 grow_linebuffer (&token_name, methodlen + 1);
+ − 2989 strcat (token_name.buffer, ":");
+ − 2990 token_name.len = methodlen;
+ − 2991 break;
+ − 2992 }
+ − 2993 if (structdef == stagseen)
+ − 2994 structdef = scolonseen;
+ − 2995 else
+ − 2996 switch (fvdef)
+ − 2997 {
+ − 2998 case fvnameseen:
+ − 2999 if (yacc_rules)
+ − 3000 {
+ − 3001 make_C_tag (FALSE); /* a yacc function */
+ − 3002 fvdef = fignore;
+ − 3003 }
+ − 3004 break;
+ − 3005 case fstartlist:
+ − 3006 fvdef = fvnone;
+ − 3007 break;
+ − 3008 }
+ − 3009 break;
+ − 3010 case ';':
+ − 3011 if (definedef != dnone)
+ − 3012 break;
+ − 3013 if (cblev == 0)
+ − 3014 switch (typdef)
+ − 3015 {
+ − 3016 case tend:
+ − 3017 #ifdef OO_BROWSER
+ − 3018 set_construct(C_TYPE);
+ − 3019 #endif
+ − 3020 make_C_tag (FALSE); /* a typedef */
+ − 3021 /* FALLTHRU */
+ − 3022 default:
+ − 3023 typdef = tnone;
+ − 3024 }
+ − 3025 switch (fvdef)
+ − 3026 {
+ − 3027 case fignore:
+ − 3028 break;
+ − 3029 case fvnameseen:
+ − 3030 if ((globals && cblev == 0) || (members && cblev == 1))
+ − 3031 #ifndef OO_BROWSER
+ − 3032 make_C_tag (FALSE); /* a variable */
+ − 3033 #else
+ − 3034 /* if (constantypedefs && structdef == snone)*/
+ − 3035 {
+ − 3036 tok.named = TRUE;
+ − 3037 switch (structtype)
+ − 3038 {
+ − 3039 case st_C_enum:
+ − 3040 set_construct(C_ENUMERATION);
+ − 3041 break;
+ − 3042 case st_C_class:
+ − 3043 set_construct(C_CLASS);
+ − 3044 break;
+ − 3045 default:
+ − 3046 set_construct(C_VARIABLE);
+ − 3047 break;
+ − 3048 }
+ − 3049 make_C_tag (FALSE);
+ − 3050 /* Force reset of st_C_enum structtype value. */
+ − 3051 structtype = st_none;
+ − 3052 }
+ − 3053 #endif
+ − 3054 /* FALLTHRU */
+ − 3055 default:
+ − 3056 fvdef = fvnone;
+ − 3057 /* The following instruction invalidates the token.
+ − 3058 Probably the token should be invalidated in all
+ − 3059 other cases where some state machine is reset. */
+ − 3060 tok.valid = FALSE;
+ − 3061 }
+ − 3062 if (structdef == stagseen)
+ − 3063 structdef = snone;
+ − 3064 break;
+ − 3065 case ',':
+ − 3066 if (definedef != dnone)
+ − 3067 break;
+ − 3068 switch (objdef)
+ − 3069 {
+ − 3070 case omethodtag:
+ − 3071 case omethodparm:
+ − 3072 make_C_tag (TRUE); /* an Objective C method */
+ − 3073 objdef = oinbody;
+ − 3074 break;
+ − 3075 }
+ − 3076 switch (fvdef)
+ − 3077 {
+ − 3078 case finlist:
+ − 3079 case fignore:
+ − 3080 case vignore:
+ − 3081 break;
+ − 3082 case fvnameseen:
+ − 3083 if ((globals && cblev == 0) || (members && cblev == 1))
+ − 3084 make_C_tag (FALSE); /* a variable */
+ − 3085 break;
+ − 3086 default:
+ − 3087 fvdef = fvnone;
+ − 3088 }
+ − 3089 if (structdef == stagseen)
+ − 3090 structdef = snone;
+ − 3091 break;
+ − 3092 case '[':
+ − 3093 if (definedef != dnone)
+ − 3094 break;
+ − 3095 if (cblev == 0 && typdef == tend)
+ − 3096 {
+ − 3097 #ifdef OO_BROWSER
+ − 3098 set_construct(C_TYPE);
+ − 3099 #endif
+ − 3100 typdef = tignore;
+ − 3101 make_C_tag (FALSE); /* a typedef */
+ − 3102 break;
+ − 3103 }
+ − 3104 switch (fvdef)
+ − 3105 {
+ − 3106 case finlist:
+ − 3107 case fignore:
+ − 3108 case vignore:
+ − 3109 break;
+ − 3110 case fvnameseen:
+ − 3111 #ifndef OO_BROWSER
+ − 3112 if ((globals && cblev == 0) || (members && cblev == 1))
+ − 3113 make_C_tag (FALSE); /* a variable */
+ − 3114 #else
+ − 3115 if (constantypedefs && structdef == snone)
+ − 3116 {
+ − 3117 tok.named = TRUE;
+ − 3118 switch (structtype)
+ − 3119 {
+ − 3120 case st_C_enum:
+ − 3121 set_construct(C_ENUMERATION);
+ − 3122 break;
+ − 3123 case st_C_class:
+ − 3124 set_construct(C_CLASS);
+ − 3125 break;
+ − 3126 default:
+ − 3127 set_construct(C_VARIABLE);
+ − 3128 break;
+ − 3129 }
+ − 3130 make_C_tag (FALSE);
+ − 3131 /* Force reset of st_C_enum structtype value. */
+ − 3132 structtype = st_none;
+ − 3133 }
+ − 3134 #endif
+ − 3135 /* FALLTHRU */
+ − 3136 default:
+ − 3137 fvdef = fvnone;
+ − 3138 }
+ − 3139 if (structdef == stagseen)
+ − 3140 structdef = snone;
+ − 3141 break;
+ − 3142 case '(':
+ − 3143 if (definedef != dnone)
+ − 3144 break;
+ − 3145 if (objdef == otagseen && parlev == 0)
+ − 3146 objdef = oparenseen;
+ − 3147 switch (fvdef)
+ − 3148 {
+ − 3149 case fvnone:
+ − 3150 switch (typdef)
+ − 3151 {
+ − 3152 case ttypedseen:
+ − 3153 case tend:
+ − 3154 if (tok.valid && *lp != '*')
+ − 3155 {
+ − 3156 /* This handles constructs like:
+ − 3157 typedef void OperatorFun (int fun); */
+ − 3158 typdef = tignore;
+ − 3159 #ifdef OO_BROWSER
+ − 3160 set_construct(C_TYPE);
+ − 3161 #endif
+ − 3162 make_C_tag (FALSE);
+ − 3163 }
+ − 3164 break;
+ − 3165 } /* switch (typdef) */
+ − 3166 break;
+ − 3167 case fvnameseen:
+ − 3168 fvdef = fstartlist;
+ − 3169 break;
+ − 3170 case flistseen:
+ − 3171 fvdef = finlist;
+ − 3172 break;
+ − 3173 }
+ − 3174 parlev++;
+ − 3175 break;
+ − 3176 case ')':
+ − 3177 if (definedef != dnone)
+ − 3178 break;
+ − 3179 if (objdef == ocatseen && parlev == 1)
+ − 3180 {
+ − 3181 make_C_tag (TRUE); /* an Objective C category */
+ − 3182 objdef = oignore;
+ − 3183 }
+ − 3184 if (--parlev == 0)
+ − 3185 {
+ − 3186 switch (fvdef)
+ − 3187 {
+ − 3188 case fstartlist:
+ − 3189 case finlist:
+ − 3190 fvdef = flistseen;
+ − 3191 break;
+ − 3192 }
+ − 3193 if (cblev == 0 && typdef == tend)
+ − 3194 {
+ − 3195 #ifdef OO_BROWSER
+ − 3196 set_construct(C_TYPE);
+ − 3197 #endif
+ − 3198 typdef = tignore;
+ − 3199 make_C_tag (FALSE); /* a typedef */
+ − 3200 }
+ − 3201 }
+ − 3202 else if (parlev < 0) /* can happen due to ill-conceived #if's. */
+ − 3203 parlev = 0;
+ − 3204 break;
+ − 3205 case '{':
+ − 3206 if (definedef != dnone)
+ − 3207 break;
+ − 3208 if (typdef == ttypedseen)
+ − 3209 typdef = tinbody;
+ − 3210 switch (structdef)
+ − 3211 {
+ − 3212 case skeyseen: /* unnamed struct */
+ − 3213 structdef = sinbody;
+ − 3214 structtag = "_anonymous_";
+ − 3215 break;
+ − 3216 case stagseen:
+ − 3217 case scolonseen: /* named struct */
+ − 3218 structdef = sinbody;
+ − 3219 make_C_tag (FALSE); /* a struct */
+ − 3220 break;
+ − 3221 }
+ − 3222 switch (fvdef)
+ − 3223 {
+ − 3224 case flistseen:
+ − 3225 #ifdef OO_BROWSER
+ − 3226 set_construct(C_FUNCTION);
+ − 3227 /* Ensure function name is recorded.
+ − 3228 -- Bob Weiner, Altrasoft */
+ − 3229 tok.named = TRUE;
+ − 3230 #endif
+ − 3231 make_C_tag (TRUE); /* a function */
+ − 3232 /* FALLTHRU */
+ − 3233 case fignore:
+ − 3234 fvdef = fvnone;
+ − 3235 break;
+ − 3236 case fvnone:
+ − 3237 switch (objdef)
+ − 3238 {
+ − 3239 case otagseen:
+ − 3240 make_C_tag (TRUE); /* an Objective C class */
+ − 3241 objdef = oignore;
+ − 3242 break;
+ − 3243 case omethodtag:
+ − 3244 case omethodparm:
+ − 3245 make_C_tag (TRUE); /* an Objective C method */
+ − 3246 objdef = oinbody;
+ − 3247 break;
+ − 3248 default:
+ − 3249 /* Neutralize `extern "C" {' grot. */
+ − 3250 if (cblev == 0 && structdef == snone && typdef == tnone)
+ − 3251 cblev = -1;
+ − 3252 }
+ − 3253 }
+ − 3254 cblev++;
+ − 3255 break;
+ − 3256 case '*':
+ − 3257 if (definedef != dnone)
+ − 3258 break;
+ − 3259 if (fvdef == fstartlist)
+ − 3260 fvdef = fvnone; /* avoid tagging `foo' in `foo (*bar()) ()' */
+ − 3261 break;
+ − 3262 case '}':
+ − 3263 if (definedef != dnone)
+ − 3264 break;
+ − 3265 if (!noindentypedefs && lp == newlb.buffer + 1)
+ − 3266 {
+ − 3267 cblev = 0; /* reset curly brace level if first column */
+ − 3268 parlev = 0; /* also reset paren level, just in case... */
+ − 3269 }
+ − 3270 else if (cblev > 0)
+ − 3271 cblev--;
+ − 3272 if (cblev == 0)
+ − 3273 {
+ − 3274 if (typdef == tinbody)
+ − 3275 typdef = tend;
+ − 3276 /* Memory leakage here: the string pointed by structtag is
+ − 3277 never released, because I fear to miss something and
+ − 3278 break things while freeing the area. The amount of
+ − 3279 memory leaked here is the sum of the lengths of the
+ − 3280 struct tags.
+ − 3281 if (structdef == sinbody)
+ − 3282 free (structtag); */
+ − 3283
+ − 3284 structdef = snone;
+ − 3285 structtag = "<error>";
+ − 3286 #ifdef OO_BROWSER
+ − 3287 /* Next line added to avoid any state carryover between
+ − 3288 functions. -- Bob Weiner, Altrasoft, 11/19/1997 */
+ − 3289 fvdef = fvnone; oo_browser_construct = C_NULL;
+ − 3290 #endif
+ − 3291 }
+ − 3292 break;
+ − 3293 case '=':
+ − 3294 if (definedef != dnone)
+ − 3295 break;
+ − 3296 #ifdef OO_BROWSER
+ − 3297 {
+ − 3298 int is_method = 0;
+ − 3299 #endif
+ − 3300 switch (fvdef)
+ − 3301 {
+ − 3302 case finlist:
+ − 3303 case fignore:
+ − 3304 case vignore:
+ − 3305 break;
+ − 3306 case fvnameseen:
+ − 3307 if ((globals && cblev == 0) || (members && cblev == 1))
+ − 3308 #ifndef OO_BROWSER
+ − 3309 make_C_tag (FALSE); /* a variable */
+ − 3310 #else
+ − 3311 {
+ − 3312 tok.named = TRUE;
+ − 3313 switch (structtype)
+ − 3314 {
+ − 3315 case st_C_enum:
+ − 3316 set_construct(C_ENUMERATION);
+ − 3317 break;
+ − 3318 case st_C_class:
+ − 3319 set_construct(C_CLASS);
+ − 3320 break;
+ − 3321 default:
+ − 3322 /* a global variable */
+ − 3323 set_construct(C_VARIABLE);
+ − 3324 break;
+ − 3325 }
+ − 3326
+ − 3327 /* ootags categorizes each tag found whereas etags doesn't.
+ − 3328 Set the is_method flag if this tag has been marked as
+ − 3329 such by an earlier section of code.
+ − 3330 -- Steve Baur, Altrasoft, 5/7/1998 */
+ − 3331 is_method = (oo_browser_construct == C_METHOD);
+ − 3332
+ − 3333 make_C_tag (FALSE);
+ − 3334 /* Force reset of st_C_enum structtype value. */
+ − 3335 structtype = st_none;
+ − 3336 }
+ − 3337 #endif
+ − 3338 /* FALLTHRU */
+ − 3339 default:
+ − 3340 #ifdef OO_BROWSER
+ − 3341 fvdef = is_method ? fignore : vignore;
+ − 3342 #else
+ − 3343 fvdef = vignore;
+ − 3344 #endif
+ − 3345 }
+ − 3346 #ifdef OO_BROWSER
+ − 3347 }
+ − 3348 #endif
+ − 3349 break;
+ − 3350 case '+':
+ − 3351 case '-':
+ − 3352 if (objdef == oinbody && cblev == 0)
+ − 3353 {
+ − 3354 objdef = omethodsign;
+ − 3355 break;
+ − 3356 }
+ − 3357 /* FALLTHRU */
+ − 3358 case '#': case '~': case '&': case '%': case '/': case '|':
+ − 3359 case '^': case '!': case '<': case '>': case '.': case '?': case ']':
+ − 3360 if (definedef != dnone)
+ − 3361 break;
+ − 3362 #ifdef OO_BROWSER
+ − 3363 if (!cplpl)
+ − 3364 {
+ − 3365 #endif
+ − 3366 /* The above characters cannot follow a function tag in C, so
+ − 3367 unmark this as a function entry. For C++, these characters
+ − 3368 may follow an `operator' function construct, so skip the
+ − 3369 unmarking conditional below.
+ − 3370 -- Steve Baur, Altrasoft, 5/7/1998 */
+ − 3371 if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
+ − 3372 fvdef = fvnone;
+ − 3373 #ifdef OO_BROWSER
+ − 3374 }
+ − 3375 #endif
+ − 3376 break;
+ − 3377 case '\0':
+ − 3378 if (objdef == otagseen)
+ − 3379 {
+ − 3380 make_C_tag (TRUE); /* an Objective C class */
+ − 3381 objdef = oignore;
+ − 3382 }
+ − 3383 /* If a macro spans multiple lines don't reset its state. */
+ − 3384 if (quotednl)
+ − 3385 CNL_SAVE_DEFINEDEF ();
+ − 3386 else
+ − 3387 CNL ();
+ − 3388 break;
+ − 3389 } /* switch (c) */
+ − 3390
+ − 3391 } /* while not eof */
+ − 3392 }
+ − 3393
+ − 3394 /*
+ − 3395 * Process either a C++ file or a C file depending on the setting
+ − 3396 * of a global flag.
+ − 3397 */
+ − 3398 void
+ − 3399 default_C_entries (inf)
+ − 3400 FILE *inf;
+ − 3401 {
+ − 3402 C_entries (cplusplus ? C_PLPL : 0, inf);
+ − 3403 }
+ − 3404
+ − 3405 /* Always do plain ANSI C. */
+ − 3406 void
+ − 3407 plain_C_entries (inf)
+ − 3408 FILE *inf;
+ − 3409 {
+ − 3410 C_entries (0, inf);
+ − 3411 }
+ − 3412
+ − 3413 /* Always do C++. */
+ − 3414 void
+ − 3415 Cplusplus_entries (inf)
+ − 3416 FILE *inf;
+ − 3417 {
+ − 3418 C_entries (C_PLPL, inf);
+ − 3419 }
+ − 3420
+ − 3421 /* Always do Java. */
+ − 3422 void
+ − 3423 Cjava_entries (inf)
+ − 3424 FILE *inf;
+ − 3425 {
+ − 3426 C_entries (C_JAVA, inf);
+ − 3427 }
+ − 3428
+ − 3429 /* Always do C*. */
+ − 3430 void
+ − 3431 Cstar_entries (inf)
+ − 3432 FILE *inf;
+ − 3433 {
+ − 3434 C_entries (C_STAR, inf);
+ − 3435 }
+ − 3436
+ − 3437 /* Always do Yacc. */
+ − 3438 void
+ − 3439 Yacc_entries (inf)
+ − 3440 FILE *inf;
+ − 3441 {
+ − 3442 C_entries (YACC, inf);
+ − 3443 }
+ − 3444
+ − 3445 /* A useful macro. */
+ − 3446 #define LOOP_ON_INPUT_LINES(file_pointer, line_buffer, char_pointer) \
+ − 3447 for (lineno = charno = 0; /* loop initialization */ \
+ − 3448 !feof (file_pointer) /* loop test */ \
+ − 3449 && (lineno++, /* instructions at start of loop */ \
+ − 3450 linecharno = charno, \
+ − 3451 charno += readline (&line_buffer, file_pointer), \
+ − 3452 char_pointer = lb.buffer, \
+ − 3453 TRUE); \
+ − 3454 )
+ − 3455
+ − 3456
+ − 3457 /*
+ − 3458 * Read a file, but do no processing. This is used to do regexp
+ − 3459 * matching on files that have no language defined.
+ − 3460 */
+ − 3461 void
+ − 3462 just_read_file (inf)
+ − 3463 FILE *inf;
+ − 3464 {
+ − 3465 register char *dummy;
+ − 3466
+ − 3467 LOOP_ON_INPUT_LINES (inf, lb, dummy)
+ − 3468 continue;
+ − 3469 }
+ − 3470
+ − 3471 /* Fortran parsing */
+ − 3472
+ − 3473 bool tail PP ((char *cp));
+ − 3474 bool
+ − 3475 tail (cp)
+ − 3476 char *cp;
+ − 3477 {
+ − 3478 register int len = 0;
+ − 3479
+ − 3480 while (*cp && lowcase(*cp) == lowcase(dbp[len]))
+ − 3481 cp++, len++;
+ − 3482 if (*cp == '\0' && !intoken(dbp[len]))
+ − 3483 {
+ − 3484 dbp += len;
+ − 3485 return TRUE;
+ − 3486 }
+ − 3487 return FALSE;
+ − 3488 }
+ − 3489
+ − 3490 void
+ − 3491 takeprec ()
+ − 3492 {
+ − 3493 dbp = skip_spaces (dbp);
+ − 3494 if (*dbp != '*')
+ − 3495 return;
+ − 3496 dbp++;
+ − 3497 dbp = skip_spaces (dbp);
+ − 3498 if (strneq (dbp, "(*)", 3))
+ − 3499 {
+ − 3500 dbp += 3;
+ − 3501 return;
+ − 3502 }
+ − 3503 if (!isdigit (*dbp))
+ − 3504 {
+ − 3505 --dbp; /* force failure */
+ − 3506 return;
+ − 3507 }
+ − 3508 do
+ − 3509 dbp++;
+ − 3510 while (isdigit (*dbp));
+ − 3511 }
+ − 3512
+ − 3513 void getit PP ((FILE *inf));
+ − 3514 void
+ − 3515 getit (inf)
+ − 3516 FILE *inf;
+ − 3517 {
+ − 3518 register char *cp;
+ − 3519
+ − 3520 dbp = skip_spaces (dbp);
+ − 3521 if (*dbp == '\0')
+ − 3522 {
+ − 3523 lineno++;
+ − 3524 linecharno = charno;
+ − 3525 charno += readline (&lb, inf);
+ − 3526 dbp = lb.buffer;
+ − 3527 if (dbp[5] != '&')
+ − 3528 return;
+ − 3529 dbp += 6;
+ − 3530 dbp = skip_spaces (dbp);
+ − 3531 }
+ − 3532 if (!isalpha (*dbp)
+ − 3533 && *dbp != '_'
+ − 3534 && *dbp != '$')
+ − 3535 return;
+ − 3536 for (cp = dbp + 1; *cp && intoken (*cp); cp++)
+ − 3537 continue;
+ − 3538 pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
+ − 3539 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3540 }
+ − 3541
+ − 3542
+ − 3543 void
+ − 3544 Fortran_functions (inf)
+ − 3545 FILE *inf;
+ − 3546 {
+ − 3547 LOOP_ON_INPUT_LINES (inf, lb, dbp)
+ − 3548 {
+ − 3549 if (*dbp == '%')
+ − 3550 dbp++; /* Ratfor escape to fortran */
+ − 3551 dbp = skip_spaces (dbp);
+ − 3552 if (*dbp == '\0')
+ − 3553 continue;
+ − 3554 switch (lowcase (*dbp))
+ − 3555 {
+ − 3556 case 'i':
+ − 3557 if (tail ("integer"))
+ − 3558 takeprec ();
+ − 3559 break;
+ − 3560 case 'r':
+ − 3561 if (tail ("real"))
+ − 3562 takeprec ();
+ − 3563 break;
+ − 3564 case 'l':
+ − 3565 if (tail ("logical"))
+ − 3566 takeprec ();
+ − 3567 break;
+ − 3568 case 'c':
+ − 3569 if (tail ("complex") || tail ("character"))
+ − 3570 takeprec ();
+ − 3571 break;
+ − 3572 case 'd':
+ − 3573 if (tail ("double"))
+ − 3574 {
+ − 3575 dbp = skip_spaces (dbp);
+ − 3576 if (*dbp == '\0')
+ − 3577 continue;
+ − 3578 if (tail ("precision"))
+ − 3579 break;
+ − 3580 continue;
+ − 3581 }
+ − 3582 break;
+ − 3583 }
+ − 3584 dbp = skip_spaces (dbp);
+ − 3585 if (*dbp == '\0')
+ − 3586 continue;
+ − 3587 switch (lowcase (*dbp))
+ − 3588 {
+ − 3589 case 'f':
+ − 3590 if (tail ("function"))
+ − 3591 getit (inf);
+ − 3592 continue;
+ − 3593 case 's':
+ − 3594 if (tail ("subroutine"))
+ − 3595 getit (inf);
+ − 3596 continue;
+ − 3597 case 'e':
+ − 3598 if (tail ("entry"))
+ − 3599 getit (inf);
+ − 3600 continue;
+ − 3601 case 'p':
+ − 3602 if (tail ("program"))
+ − 3603 {
+ − 3604 getit (inf);
+ − 3605 continue;
+ − 3606 }
+ − 3607 if (tail ("procedure"))
+ − 3608 getit (inf);
+ − 3609 continue;
+ − 3610 }
+ − 3611 }
+ − 3612 }
+ − 3613
+ − 3614 /*
+ − 3615 * Bob Weiner, Motorola Inc., 4/3/94
+ − 3616 * Unix and microcontroller assembly tag handling
+ − 3617 * look for '^[a-zA-Z_.$][a-zA_Z0-9_.$]*[: ^I^J]'
+ − 3618 */
+ − 3619 void
438
+ − 3620 Asm_labels (FILE *inf)
428
+ − 3621 {
+ − 3622 register char *cp;
+ − 3623
+ − 3624 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 3625 {
+ − 3626 /* If first char is alphabetic or one of [_.$], test for colon
+ − 3627 following identifier. */
+ − 3628 if (isalpha (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
+ − 3629 {
+ − 3630 /* Read past label. */
+ − 3631 cp++;
+ − 3632 while (isalnum (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
+ − 3633 cp++;
+ − 3634 if (*cp == ':' || isspace (*cp))
+ − 3635 {
+ − 3636 /* Found end of label, so copy it and add it to the table. */
+ − 3637 pfnote ((CTAGS) ? savenstr(lb.buffer, cp-lb.buffer) : NULL, TRUE,
+ − 3638 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3639 }
+ − 3640 }
+ − 3641 }
+ − 3642 }
+ − 3643
+ − 3644 /*
+ − 3645 * Perl support by Bart Robinson <lomew@cs.utah.edu>
+ − 3646 * enhanced by Michael Ernst <mernst@alum.mit.edu>
+ − 3647 * Perl sub names: look for /^sub[ \t\n]+[^ \t\n{]+/
+ − 3648 * Perl variable names: /^(my|local).../
+ − 3649 */
+ − 3650 void
+ − 3651 Perl_functions (inf)
+ − 3652 FILE *inf;
+ − 3653 {
+ − 3654 register char *cp;
+ − 3655
+ − 3656 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 3657 {
+ − 3658 if (*cp++ == 's'
+ − 3659 && *cp++ == 'u'
+ − 3660 && *cp++ == 'b' && isspace (*cp++))
+ − 3661 {
+ − 3662 cp = skip_spaces (cp);
+ − 3663 if (*cp != '\0')
+ − 3664 {
+ − 3665 while (*cp != '\0'
+ − 3666 && !isspace (*cp) && *cp != '{' && *cp != '(')
+ − 3667 cp++;
+ − 3668 pfnote ((CTAGS) ? savenstr(lb.buffer, cp-lb.buffer) : NULL, TRUE,
+ − 3669 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3670 }
+ − 3671 }
+ − 3672 else if (globals /* only if tagging global vars is enabled */
+ − 3673 && ((cp = lb.buffer,
+ − 3674 *cp++ == 'm'
+ − 3675 && *cp++ == 'y')
+ − 3676 || (cp = lb.buffer,
+ − 3677 *cp++ == 'l'
+ − 3678 && *cp++ == 'o'
+ − 3679 && *cp++ == 'c'
+ − 3680 && *cp++ == 'a'
+ − 3681 && *cp++ == 'l'))
+ − 3682 && (*cp == '(' || isspace (*cp)))
+ − 3683 {
+ − 3684 /* After "my" or "local", but before any following paren or space. */
+ − 3685 char *varname = NULL;
+ − 3686
+ − 3687 cp = skip_spaces (cp);
+ − 3688 if (*cp == '$' || *cp == '@' || *cp == '%')
+ − 3689 {
+ − 3690 char* varstart = ++cp;
+ − 3691 while (isalnum (*cp) || *cp == '_')
+ − 3692 cp++;
+ − 3693 varname = savenstr (varstart, cp-varstart);
+ − 3694 }
+ − 3695 else
+ − 3696 {
+ − 3697 /* Should be examining a variable list at this point;
+ − 3698 could insist on seeing an open parenthesis. */
+ − 3699 while (*cp != '\0' && *cp != ';' && *cp != '=' && *cp != ')')
+ − 3700 cp++;
+ − 3701 }
+ − 3702
+ − 3703 /* Perhaps I should back cp up one character, so the TAGS table
+ − 3704 doesn't mention (and so depend upon) the following char. */
+ − 3705 pfnote ((CTAGS) ? savenstr (lb.buffer, cp-lb.buffer) : varname,
+ − 3706 FALSE, lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3707 }
+ − 3708 }
+ − 3709 }
+ − 3710
+ − 3711 /*
+ − 3712 * Python support by Eric S. Raymond <esr@thyrsus.com>
+ − 3713 * Look for /^def[ \t\n]+[^ \t\n(:]+/ or /^class[ \t\n]+[^ \t\n(:]+/
+ − 3714 */
+ − 3715 void
+ − 3716 Python_functions (inf)
+ − 3717 FILE *inf;
+ − 3718 {
+ − 3719 register char *cp;
+ − 3720
+ − 3721 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 3722 {
+ − 3723 if (*cp++ == 'd'
+ − 3724 && *cp++ == 'e'
+ − 3725 && *cp++ == 'f' && isspace (*cp++))
+ − 3726 {
+ − 3727 cp = skip_spaces (cp);
+ − 3728 while (*cp != '\0' && !isspace (*cp) && *cp != '(' && *cp != ':')
+ − 3729 cp++;
+ − 3730 pfnote ((char *) NULL, TRUE,
+ − 3731 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3732 }
+ − 3733
+ − 3734 cp = lb.buffer;
+ − 3735 if (*cp++ == 'c'
+ − 3736 && *cp++ == 'l'
+ − 3737 && *cp++ == 'a'
+ − 3738 && *cp++ == 's'
+ − 3739 && *cp++ == 's' && isspace (*cp++))
+ − 3740 {
+ − 3741 cp = skip_spaces (cp);
+ − 3742 while (*cp != '\0' && !isspace (*cp) && *cp != '(' && *cp != ':')
+ − 3743 cp++;
+ − 3744 pfnote ((char *) NULL, TRUE,
+ − 3745 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 3746 }
+ − 3747 }
+ − 3748 }
+ − 3749
+ − 3750 /* Idea by Corny de Souza
+ − 3751 * Cobol tag functions
+ − 3752 * We could look for anything that could be a paragraph name.
+ − 3753 * i.e. anything that starts in column 8 is one word and ends in a full stop.
+ − 3754 */
+ − 3755 void
+ − 3756 Cobol_paragraphs (inf)
+ − 3757 FILE *inf;
+ − 3758 {
+ − 3759 register char *bp, *ep;
+ − 3760
+ − 3761 LOOP_ON_INPUT_LINES (inf, lb, bp)
+ − 3762 {
+ − 3763 if (lb.len < 9)
+ − 3764 continue;
+ − 3765 bp += 8;
+ − 3766
+ − 3767 /* If eoln, compiler option or comment ignore whole line. */
+ − 3768 if (bp[-1] != ' ' || !isalnum (bp[0]))
+ − 3769 continue;
+ − 3770
+ − 3771 for (ep = bp; isalnum (*ep) || *ep == '-'; ep++)
+ − 3772 continue;
+ − 3773 if (*ep++ == '.')
+ − 3774 pfnote ((CTAGS) ? savenstr (bp, ep-bp) : NULL, TRUE,
+ − 3775 lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
+ − 3776 }
+ − 3777 }
+ − 3778
+ − 3779 /* Added by Mosur Mohan, 4/22/88 */
+ − 3780 /* Pascal parsing */
+ − 3781
+ − 3782 /*
+ − 3783 * Locates tags for procedures & functions. Doesn't do any type- or
+ − 3784 * var-definitions. It does look for the keyword "extern" or
+ − 3785 * "forward" immediately following the procedure statement; if found,
+ − 3786 * the tag is skipped.
+ − 3787 */
+ − 3788 void
+ − 3789 Pascal_functions (inf)
+ − 3790 FILE *inf;
+ − 3791 {
+ − 3792 linebuffer tline; /* mostly copied from C_entries */
+ − 3793 long save_lcno;
+ − 3794 int save_lineno, save_len;
+ − 3795 char c, *cp, *namebuf;
+ − 3796
+ − 3797 bool /* each of these flags is TRUE iff: */
+ − 3798 incomment, /* point is inside a comment */
+ − 3799 inquote, /* point is inside '..' string */
+ − 3800 get_tagname, /* point is after PROCEDURE/FUNCTION
+ − 3801 keyword, so next item = potential tag */
+ − 3802 found_tag, /* point is after a potential tag */
+ − 3803 inparms, /* point is within parameter-list */
+ − 3804 verify_tag; /* point has passed the parm-list, so the
+ − 3805 next token will determine whether this
+ − 3806 is a FORWARD/EXTERN to be ignored, or
+ − 3807 whether it is a real tag */
+ − 3808
+ − 3809 save_lcno = save_lineno = save_len = 0; /* keep compiler quiet */
+ − 3810 namebuf = NULL; /* keep compiler quiet */
+ − 3811 lineno = 0;
+ − 3812 charno = 0;
+ − 3813 dbp = lb.buffer;
+ − 3814 *dbp = '\0';
+ − 3815 initbuffer (&tline);
+ − 3816
+ − 3817 incomment = inquote = FALSE;
+ − 3818 found_tag = FALSE; /* have a proc name; check if extern */
+ − 3819 get_tagname = FALSE; /* have found "procedure" keyword */
+ − 3820 inparms = FALSE; /* found '(' after "proc" */
+ − 3821 verify_tag = FALSE; /* check if "extern" is ahead */
+ − 3822
+ − 3823
+ − 3824 while (!feof (inf)) /* long main loop to get next char */
+ − 3825 {
+ − 3826 c = *dbp++;
+ − 3827 if (c == '\0') /* if end of line */
+ − 3828 {
+ − 3829 lineno++;
+ − 3830 linecharno = charno;
+ − 3831 charno += readline (&lb, inf);
+ − 3832 dbp = lb.buffer;
+ − 3833 if (*dbp == '\0')
+ − 3834 continue;
+ − 3835 if (!((found_tag && verify_tag)
+ − 3836 || get_tagname))
+ − 3837 c = *dbp++; /* only if don't need *dbp pointing
+ − 3838 to the beginning of the name of
+ − 3839 the procedure or function */
+ − 3840 }
+ − 3841 if (incomment)
+ − 3842 {
+ − 3843 if (c == '}') /* within { } comments */
+ − 3844 incomment = FALSE;
+ − 3845 else if (c == '*' && *dbp == ')') /* within (* *) comments */
+ − 3846 {
+ − 3847 dbp++;
+ − 3848 incomment = FALSE;
+ − 3849 }
+ − 3850 continue;
+ − 3851 }
+ − 3852 else if (inquote)
+ − 3853 {
+ − 3854 if (c == '\'')
+ − 3855 inquote = FALSE;
+ − 3856 continue;
+ − 3857 }
+ − 3858 else
+ − 3859 switch (c)
+ − 3860 {
+ − 3861 case '\'':
+ − 3862 inquote = TRUE; /* found first quote */
+ − 3863 continue;
+ − 3864 case '{': /* found open { comment */
+ − 3865 incomment = TRUE;
+ − 3866 continue;
+ − 3867 case '(':
+ − 3868 if (*dbp == '*') /* found open (* comment */
+ − 3869 {
+ − 3870 incomment = TRUE;
+ − 3871 dbp++;
+ − 3872 }
+ − 3873 else if (found_tag) /* found '(' after tag, i.e., parm-list */
+ − 3874 inparms = TRUE;
+ − 3875 continue;
+ − 3876 case ')': /* end of parms list */
+ − 3877 if (inparms)
+ − 3878 inparms = FALSE;
+ − 3879 continue;
+ − 3880 case ';':
+ − 3881 if (found_tag && !inparms) /* end of proc or fn stmt */
+ − 3882 {
+ − 3883 verify_tag = TRUE;
+ − 3884 break;
+ − 3885 }
+ − 3886 continue;
+ − 3887 }
+ − 3888 if (found_tag && verify_tag && (*dbp != ' '))
+ − 3889 {
+ − 3890 /* check if this is an "extern" declaration */
+ − 3891 if (*dbp == '\0')
+ − 3892 continue;
+ − 3893 if (lowcase (*dbp == 'e'))
+ − 3894 {
+ − 3895 if (tail ("extern")) /* superfluous, really! */
+ − 3896 {
+ − 3897 found_tag = FALSE;
+ − 3898 verify_tag = FALSE;
+ − 3899 }
+ − 3900 }
+ − 3901 else if (lowcase (*dbp) == 'f')
+ − 3902 {
+ − 3903 if (tail ("forward")) /* check for forward reference */
+ − 3904 {
+ − 3905 found_tag = FALSE;
+ − 3906 verify_tag = FALSE;
+ − 3907 }
+ − 3908 }
+ − 3909 if (found_tag && verify_tag) /* not external proc, so make tag */
+ − 3910 {
+ − 3911 found_tag = FALSE;
+ − 3912 verify_tag = FALSE;
+ − 3913 pfnote (namebuf, TRUE,
+ − 3914 tline.buffer, save_len, save_lineno, save_lcno);
+ − 3915 continue;
+ − 3916 }
+ − 3917 }
+ − 3918 if (get_tagname) /* grab name of proc or fn */
+ − 3919 {
+ − 3920 if (*dbp == '\0')
+ − 3921 continue;
+ − 3922
+ − 3923 /* save all values for later tagging */
+ − 3924 grow_linebuffer (&tline, lb.len + 1);
+ − 3925 strcpy (tline.buffer, lb.buffer);
+ − 3926 save_lineno = lineno;
+ − 3927 save_lcno = linecharno;
+ − 3928
+ − 3929 /* grab block name */
+ − 3930 for (cp = dbp + 1; *cp != '\0' && !endtoken (*cp); cp++)
+ − 3931 continue;
+ − 3932 namebuf = (CTAGS) ? savenstr (dbp, cp-dbp) : NULL;
+ − 3933 dbp = cp; /* set dbp to e-o-token */
+ − 3934 save_len = dbp - lb.buffer + 1;
+ − 3935 get_tagname = FALSE;
+ − 3936 found_tag = TRUE;
+ − 3937 continue;
+ − 3938
+ − 3939 /* and proceed to check for "extern" */
+ − 3940 }
+ − 3941 else if (!incomment && !inquote && !found_tag)
+ − 3942 {
+ − 3943 /* check for proc/fn keywords */
+ − 3944 switch (lowcase (c))
+ − 3945 {
+ − 3946 case 'p':
+ − 3947 if (tail ("rocedure")) /* c = 'p', dbp has advanced */
+ − 3948 get_tagname = TRUE;
+ − 3949 continue;
+ − 3950 case 'f':
+ − 3951 if (tail ("unction"))
+ − 3952 get_tagname = TRUE;
+ − 3953 continue;
+ − 3954 }
+ − 3955 }
+ − 3956 } /* while not eof */
+ − 3957
+ − 3958 free (tline.buffer);
+ − 3959 }
+ − 3960
+ − 3961 /*
+ − 3962 * lisp tag functions
+ − 3963 * look for (def or (DEF, quote or QUOTE
+ − 3964 */
+ − 3965 int L_isdef PP ((char *strp));
+ − 3966 int
+ − 3967 L_isdef (strp)
+ − 3968 register char *strp;
+ − 3969 {
+ − 3970 return ((strp[1] == 'd' || strp[1] == 'D')
+ − 3971 && (strp[2] == 'e' || strp[2] == 'E')
+ − 3972 && (strp[3] == 'f' || strp[3] == 'F'));
+ − 3973 }
+ − 3974 int L_isquote PP ((char *strp));
+ − 3975 int
+ − 3976 L_isquote (strp)
+ − 3977 register char *strp;
+ − 3978 {
+ − 3979 return ((*++strp == 'q' || *strp == 'Q')
+ − 3980 && (*++strp == 'u' || *strp == 'U')
+ − 3981 && (*++strp == 'o' || *strp == 'O')
+ − 3982 && (*++strp == 't' || *strp == 'T')
+ − 3983 && (*++strp == 'e' || *strp == 'E')
+ − 3984 && isspace (*++strp));
+ − 3985 }
+ − 3986
+ − 3987 void L_getit PP ((void));
+ − 3988 void
+ − 3989 L_getit ()
+ − 3990 {
+ − 3991 register char *cp;
+ − 3992
+ − 3993 if (*dbp == '\'') /* Skip prefix quote */
+ − 3994 dbp++;
+ − 3995 else if (*dbp == '(')
+ − 3996 {
+ − 3997 if (L_isquote (dbp))
+ − 3998 dbp += 7; /* Skip "(quote " */
+ − 3999 else
+ − 4000 dbp += 1; /* Skip "(" before name in (defstruct (foo)) */
+ − 4001 dbp = skip_spaces (dbp);
+ − 4002 }
+ − 4003
+ − 4004 for (cp = dbp /*+1*/;
+ − 4005 *cp != '\0' && *cp != '(' && *cp != ' ' && *cp != ')';
+ − 4006 cp++)
+ − 4007 continue;
+ − 4008 if (cp == dbp)
+ − 4009 return;
+ − 4010
+ − 4011 pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
+ − 4012 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 4013 }
+ − 4014
+ − 4015 void
+ − 4016 Lisp_functions (inf)
+ − 4017 FILE *inf;
+ − 4018 {
+ − 4019 LOOP_ON_INPUT_LINES (inf, lb, dbp)
+ − 4020 {
+ − 4021 if (dbp[0] == '(')
+ − 4022 {
+ − 4023 if (L_isdef (dbp))
+ − 4024 {
+ − 4025 dbp = skip_non_spaces (dbp);
+ − 4026 dbp = skip_spaces (dbp);
+ − 4027 L_getit ();
+ − 4028 }
+ − 4029 else
+ − 4030 {
+ − 4031 /* Check for (foo::defmumble name-defined ... */
+ − 4032 do
+ − 4033 dbp++;
+ − 4034 while (*dbp != '\0' && !isspace (*dbp)
+ − 4035 && *dbp != ':' && *dbp != '(' && *dbp != ')');
+ − 4036 if (*dbp == ':')
+ − 4037 {
+ − 4038 do
+ − 4039 dbp++;
+ − 4040 while (*dbp == ':');
+ − 4041
+ − 4042 if (L_isdef (dbp - 1))
+ − 4043 {
+ − 4044 dbp = skip_non_spaces (dbp);
+ − 4045 dbp = skip_spaces (dbp);
+ − 4046 L_getit ();
+ − 4047 }
+ − 4048 }
+ − 4049 }
+ − 4050 }
+ − 4051 }
+ − 4052 }
+ − 4053
+ − 4054 /*
+ − 4055 * Postscript tag functions
+ − 4056 * Just look for lines where the first character is '/'
+ − 4057 * Richard Mlynarik <mly@adoc.xerox.com>
+ − 4058 */
+ − 4059 void
+ − 4060 Postscript_functions (inf)
+ − 4061 FILE *inf;
+ − 4062 {
+ − 4063 register char *bp, *ep;
+ − 4064
+ − 4065 LOOP_ON_INPUT_LINES (inf, lb, bp)
+ − 4066 {
+ − 4067 if (bp[0] == '/')
+ − 4068 {
+ − 4069 for (ep = bp+1;
+ − 4070 *ep != '\0' && *ep != ' ' && *ep != '{';
+ − 4071 ep++)
+ − 4072 continue;
+ − 4073 pfnote ((CTAGS) ? savenstr (bp, ep-bp) : NULL, TRUE,
+ − 4074 lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
+ − 4075 }
+ − 4076 }
+ − 4077 }
+ − 4078
+ − 4079
+ − 4080 /*
+ − 4081 * Scheme tag functions
+ − 4082 * look for (def... xyzzy
+ − 4083 * look for (def... (xyzzy
+ − 4084 * look for (def ... ((...(xyzzy ....
+ − 4085 * look for (set! xyzzy
+ − 4086 */
+ − 4087
+ − 4088 void get_scheme PP ((void));
+ − 4089
+ − 4090 void
+ − 4091 Scheme_functions (inf)
+ − 4092 FILE *inf;
+ − 4093 {
+ − 4094 LOOP_ON_INPUT_LINES (inf, lb, dbp)
+ − 4095 {
+ − 4096 if (dbp[0] == '('
+ − 4097 && (dbp[1] == 'D' || dbp[1] == 'd')
+ − 4098 && (dbp[2] == 'E' || dbp[2] == 'e')
+ − 4099 && (dbp[3] == 'F' || dbp[3] == 'f'))
+ − 4100 {
+ − 4101 dbp = skip_non_spaces (dbp);
+ − 4102 /* Skip over open parens and white space */
+ − 4103 while (isspace (*dbp) || *dbp == '(')
+ − 4104 dbp++;
+ − 4105 get_scheme ();
+ − 4106 }
+ − 4107 if (dbp[0] == '('
+ − 4108 && (dbp[1] == 'S' || dbp[1] == 's')
+ − 4109 && (dbp[2] == 'E' || dbp[2] == 'e')
+ − 4110 && (dbp[3] == 'T' || dbp[3] == 't')
+ − 4111 && (dbp[4] == '!' || dbp[4] == '!')
+ − 4112 && (isspace (dbp[5])))
+ − 4113 {
+ − 4114 dbp = skip_non_spaces (dbp);
+ − 4115 dbp = skip_spaces (dbp);
+ − 4116 get_scheme ();
+ − 4117 }
+ − 4118 }
+ − 4119 }
+ − 4120
+ − 4121 void
+ − 4122 get_scheme ()
+ − 4123 {
+ − 4124 register char *cp;
+ − 4125
+ − 4126 if (*dbp == '\0')
+ − 4127 return;
+ − 4128 /* Go till you get to white space or a syntactic break */
+ − 4129 for (cp = dbp + 1;
+ − 4130 *cp != '\0' && *cp != '(' && *cp != ')' && !isspace (*cp);
+ − 4131 cp++)
+ − 4132 continue;
+ − 4133 pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
+ − 4134 lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ − 4135 }
+ − 4136
+ − 4137 /* Find tags in TeX and LaTeX input files. */
+ − 4138
+ − 4139 /* TEX_toktab is a table of TeX control sequences that define tags.
+ − 4140 Each TEX_tabent records one such control sequence.
+ − 4141 CONVERT THIS TO USE THE Stab TYPE!! */
+ − 4142 struct TEX_tabent
+ − 4143 {
+ − 4144 char *name;
+ − 4145 int len;
+ − 4146 };
+ − 4147
+ − 4148 struct TEX_tabent *TEX_toktab = NULL; /* Table with tag tokens */
+ − 4149
+ − 4150 /* Default set of control sequences to put into TEX_toktab.
+ − 4151 The value of environment var TEXTAGS is prepended to this. */
+ − 4152
+ − 4153 char *TEX_defenv = "\
+ − 4154 :chapter:section:subsection:subsubsection:eqno:label:ref:cite:bibitem\
+ − 4155 :part:appendix:entry:index";
+ − 4156
+ − 4157 void TEX_mode PP ((FILE *inf));
+ − 4158 struct TEX_tabent *TEX_decode_env PP ((char *evarname, char *defenv));
+ − 4159 int TEX_Token PP ((char *cp));
+ − 4160
+ − 4161 char TEX_esc = '\\';
+ − 4162 char TEX_opgrp = '{';
+ − 4163 char TEX_clgrp = '}';
+ − 4164
+ − 4165 /*
+ − 4166 * TeX/LaTeX scanning loop.
+ − 4167 */
+ − 4168 void
+ − 4169 TeX_functions (inf)
+ − 4170 FILE *inf;
+ − 4171 {
+ − 4172 char *cp, *lasthit;
+ − 4173 register int i;
+ − 4174
+ − 4175 /* Select either \ or ! as escape character. */
+ − 4176 TEX_mode (inf);
+ − 4177
+ − 4178 /* Initialize token table once from environment. */
+ − 4179 if (!TEX_toktab)
+ − 4180 TEX_toktab = TEX_decode_env ("TEXTAGS", TEX_defenv);
+ − 4181
+ − 4182 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 4183 {
+ − 4184 lasthit = cp;
+ − 4185 /* Look at each esc in line. */
+ − 4186 while ((cp = etags_strchr (cp, TEX_esc)) != NULL)
+ − 4187 {
+ − 4188 if (*++cp == '\0')
+ − 4189 break;
+ − 4190 linecharno += cp - lasthit;
+ − 4191 lasthit = cp;
+ − 4192 i = TEX_Token (lasthit);
+ − 4193 if (i >= 0)
+ − 4194 {
+ − 4195 /* We seem to include the TeX command in the tag name.
+ − 4196 register char *p;
+ − 4197 for (p = lasthit + TEX_toktab[i].len;
+ − 4198 *p != '\0' && *p != TEX_clgrp;
+ − 4199 p++)
+ − 4200 continue; */
+ − 4201 pfnote (/*savenstr (lasthit, p-lasthit)*/ (char *)NULL, TRUE,
+ − 4202 lb.buffer, lb.len, lineno, linecharno);
+ − 4203 break; /* We only tag a line once */
+ − 4204 }
+ − 4205 }
+ − 4206 }
+ − 4207 }
+ − 4208
+ − 4209 #define TEX_LESC '\\'
+ − 4210 #define TEX_SESC '!'
+ − 4211 #define TEX_cmt '%'
+ − 4212
+ − 4213 /* Figure out whether TeX's escapechar is '\\' or '!' and set grouping
+ − 4214 chars accordingly. */
+ − 4215 void
+ − 4216 TEX_mode (inf)
+ − 4217 FILE *inf;
+ − 4218 {
+ − 4219 int c;
+ − 4220
+ − 4221 while ((c = getc (inf)) != EOF)
+ − 4222 {
+ − 4223 /* Skip to next line if we hit the TeX comment char. */
+ − 4224 if (c == TEX_cmt)
+ − 4225 while (c != '\n')
+ − 4226 c = getc (inf);
+ − 4227 else if (c == TEX_LESC || c == TEX_SESC )
+ − 4228 break;
+ − 4229 }
+ − 4230
+ − 4231 if (c == TEX_LESC)
+ − 4232 {
+ − 4233 TEX_esc = TEX_LESC;
+ − 4234 TEX_opgrp = '{';
+ − 4235 TEX_clgrp = '}';
+ − 4236 }
+ − 4237 else
+ − 4238 {
+ − 4239 TEX_esc = TEX_SESC;
+ − 4240 TEX_opgrp = '<';
+ − 4241 TEX_clgrp = '>';
+ − 4242 }
+ − 4243 rewind (inf);
+ − 4244 }
+ − 4245
+ − 4246 /* Read environment and prepend it to the default string.
+ − 4247 Build token table. */
+ − 4248 struct TEX_tabent *
+ − 4249 TEX_decode_env (evarname, defenv)
+ − 4250 char *evarname;
+ − 4251 char *defenv;
+ − 4252 {
+ − 4253 register char *env, *p;
+ − 4254
+ − 4255 struct TEX_tabent *tab;
+ − 4256 int size, i;
+ − 4257
+ − 4258 /* Append default string to environment. */
+ − 4259 env = getenv (evarname);
+ − 4260 if (!env)
+ − 4261 env = defenv;
+ − 4262 else
+ − 4263 {
+ − 4264 char *oldenv = env;
+ − 4265 env = concat (oldenv, defenv, "");
+ − 4266 free (oldenv);
+ − 4267 }
+ − 4268
+ − 4269 /* Allocate a token table */
+ − 4270 for (size = 1, p = env; p;)
+ − 4271 if ((p = etags_strchr (p, ':')) && *++p != '\0')
+ − 4272 size++;
+ − 4273 /* Add 1 to leave room for null terminator. */
+ − 4274 tab = xnew (size + 1, struct TEX_tabent);
+ − 4275
+ − 4276 /* Unpack environment string into token table. Be careful about */
+ − 4277 /* zero-length strings (leading ':', "::" and trailing ':') */
+ − 4278 for (i = 0; *env;)
+ − 4279 {
+ − 4280 p = etags_strchr (env, ':');
+ − 4281 if (!p) /* End of environment string. */
+ − 4282 p = env + strlen (env);
+ − 4283 if (p - env > 0)
+ − 4284 { /* Only non-zero strings. */
+ − 4285 tab[i].name = savenstr (env, p - env);
+ − 4286 tab[i].len = strlen (tab[i].name);
+ − 4287 i++;
+ − 4288 }
+ − 4289 if (*p)
+ − 4290 env = p + 1;
+ − 4291 else
+ − 4292 {
+ − 4293 tab[i].name = NULL; /* Mark end of table. */
+ − 4294 tab[i].len = 0;
+ − 4295 break;
+ − 4296 }
+ − 4297 }
+ − 4298 return tab;
+ − 4299 }
+ − 4300
+ − 4301 /* If the text at CP matches one of the tag-defining TeX command names,
+ − 4302 return the pointer to the first occurrence of that command in TEX_toktab.
+ − 4303 Otherwise return -1.
+ − 4304 Keep the capital `T' in `token' for dumb truncating compilers
+ − 4305 (this distinguishes it from `TEX_toktab' */
+ − 4306 int
+ − 4307 TEX_Token (cp)
+ − 4308 char *cp;
+ − 4309 {
+ − 4310 int i;
+ − 4311
+ − 4312 for (i = 0; TEX_toktab[i].len > 0; i++)
+ − 4313 if (strneq (TEX_toktab[i].name, cp, TEX_toktab[i].len))
+ − 4314 return i;
+ − 4315 return -1;
+ − 4316 }
+ − 4317
+ − 4318 /*
+ − 4319 * Prolog support (rewritten) by Anders Lindgren, Mar. 96
+ − 4320 *
+ − 4321 * Assumes that the predicate starts at column 0.
+ − 4322 * Only the first clause of a predicate is added.
+ − 4323 */
+ − 4324 int prolog_pred PP ((char *s, char *last));
+ − 4325 void prolog_skip_comment PP ((linebuffer *plb, FILE *inf));
+ − 4326 int prolog_atom PP ((char *s, int pos));
+ − 4327
+ − 4328 void
+ − 4329 Prolog_functions (inf)
+ − 4330 FILE *inf;
+ − 4331 {
+ − 4332 char *cp, *last;
+ − 4333 int len;
+ − 4334 int allocated;
+ − 4335
+ − 4336 allocated = 0;
+ − 4337 len = 0;
+ − 4338 last = NULL;
+ − 4339
+ − 4340 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 4341 {
+ − 4342 if (cp[0] == '\0') /* Empty line */
+ − 4343 continue;
+ − 4344 else if (isspace (cp[0])) /* Not a predicate */
+ − 4345 continue;
+ − 4346 else if (cp[0] == '/' && cp[1] == '*') /* comment. */
+ − 4347 prolog_skip_comment (&lb, inf);
+ − 4348 else if ((len = prolog_pred (cp, last)) > 0)
+ − 4349 {
+ − 4350 /* Predicate. Store the function name so that we only
+ − 4351 generate a tag for the first clause. */
+ − 4352 if (last == NULL)
+ − 4353 last = xnew(len + 1, char);
+ − 4354 else if (len + 1 > allocated)
+ − 4355 last = xrnew (last, len + 1, char);
+ − 4356 allocated = len + 1;
+ − 4357 strncpy (last, cp, len);
+ − 4358 last[len] = '\0';
+ − 4359 }
+ − 4360 }
+ − 4361 }
+ − 4362
+ − 4363
+ − 4364 void
+ − 4365 prolog_skip_comment (plb, inf)
+ − 4366 linebuffer *plb;
+ − 4367 FILE *inf;
+ − 4368 {
+ − 4369 char *cp;
+ − 4370
+ − 4371 do
+ − 4372 {
+ − 4373 for (cp = plb->buffer; *cp != '\0'; cp++)
+ − 4374 if (cp[0] == '*' && cp[1] == '/')
+ − 4375 return;
+ − 4376 lineno++;
+ − 4377 linecharno += readline (plb, inf);
+ − 4378 }
+ − 4379 while (!feof(inf));
+ − 4380 }
+ − 4381
+ − 4382 /*
+ − 4383 * A predicate definition is added if it matches:
+ − 4384 * <beginning of line><Prolog Atom><whitespace>(
+ − 4385 *
+ − 4386 * It is added to the tags database if it doesn't match the
+ − 4387 * name of the previous clause header.
+ − 4388 *
+ − 4389 * Return the size of the name of the predicate, or 0 if no header
+ − 4390 * was found.
+ − 4391 */
+ − 4392 int
+ − 4393 prolog_pred (s, last)
+ − 4394 char *s;
+ − 4395 char *last; /* Name of last clause. */
+ − 4396 {
+ − 4397 int pos;
+ − 4398 int len;
+ − 4399
+ − 4400 pos = prolog_atom (s, 0);
+ − 4401 if (pos < 1)
+ − 4402 return 0;
+ − 4403
+ − 4404 len = pos;
+ − 4405 pos = skip_spaces (s + pos) - s;
+ − 4406
+ − 4407 if ((s[pos] == '(') || (s[pos] == '.'))
+ − 4408 {
+ − 4409 if (s[pos] == '(')
+ − 4410 pos++;
+ − 4411
+ − 4412 /* Save only the first clause. */
+ − 4413 if (last == NULL
647
+ − 4414 || len != (int) strlen (last)
428
+ − 4415 || !strneq (s, last, len))
+ − 4416 {
+ − 4417 pfnote ((CTAGS) ? savenstr (s, len) : NULL, TRUE,
+ − 4418 s, pos, lineno, linecharno);
+ − 4419 return len;
+ − 4420 }
+ − 4421 }
+ − 4422 return 0;
+ − 4423 }
+ − 4424
+ − 4425 /*
+ − 4426 * Consume a Prolog atom.
+ − 4427 * Return the number of bytes consumed, or -1 if there was an error.
+ − 4428 *
+ − 4429 * A prolog atom, in this context, could be one of:
+ − 4430 * - An alphanumeric sequence, starting with a lower case letter.
+ − 4431 * - A quoted arbitrary string. Single quotes can escape themselves.
+ − 4432 * Backslash quotes everything.
+ − 4433 */
+ − 4434 int
+ − 4435 prolog_atom (s, pos)
+ − 4436 char *s;
+ − 4437 int pos;
+ − 4438 {
+ − 4439 int origpos;
+ − 4440
+ − 4441 origpos = pos;
+ − 4442
+ − 4443 if (islower(s[pos]) || (s[pos] == '_'))
+ − 4444 {
+ − 4445 /* The atom is unquoted. */
+ − 4446 pos++;
+ − 4447 while (isalnum(s[pos]) || (s[pos] == '_'))
+ − 4448 {
+ − 4449 pos++;
+ − 4450 }
+ − 4451 return pos - origpos;
+ − 4452 }
+ − 4453 else if (s[pos] == '\'')
+ − 4454 {
+ − 4455 pos++;
+ − 4456
+ − 4457 while (1)
+ − 4458 {
+ − 4459 if (s[pos] == '\'')
+ − 4460 {
+ − 4461 pos++;
+ − 4462 if (s[pos] != '\'')
+ − 4463 break;
+ − 4464 pos++; /* A double quote */
+ − 4465 }
+ − 4466 else if (s[pos] == '\0')
+ − 4467 /* Multiline quoted atoms are ignored. */
+ − 4468 return -1;
+ − 4469 else if (s[pos] == '\\')
+ − 4470 {
+ − 4471 if (s[pos+1] == '\0')
+ − 4472 return -1;
+ − 4473 pos += 2;
+ − 4474 }
+ − 4475 else
+ − 4476 pos++;
+ − 4477 }
+ − 4478 return pos - origpos;
+ − 4479 }
+ − 4480 else
+ − 4481 return -1;
+ − 4482 }
+ − 4483
+ − 4484 /*
+ − 4485 * Support for Erlang -- Anders Lindgren, Feb 1996.
+ − 4486 *
+ − 4487 * Generates tags for functions, defines, and records.
+ − 4488 *
+ − 4489 * Assumes that Erlang functions start at column 0.
+ − 4490 */
+ − 4491 int erlang_func PP ((char *s, char *last));
+ − 4492 void erlang_attribute PP ((char *s));
+ − 4493 int erlang_atom PP ((char *s, int pos));
+ − 4494
+ − 4495 void
+ − 4496 Erlang_functions (inf)
+ − 4497 FILE *inf;
+ − 4498 {
+ − 4499 char *cp, *last;
+ − 4500 int len;
+ − 4501 int allocated;
+ − 4502
+ − 4503 allocated = 0;
+ − 4504 len = 0;
+ − 4505 last = NULL;
+ − 4506
+ − 4507 LOOP_ON_INPUT_LINES (inf, lb, cp)
+ − 4508 {
+ − 4509 if (cp[0] == '\0') /* Empty line */
+ − 4510 continue;
+ − 4511 else if (isspace (cp[0])) /* Not function nor attribute */
+ − 4512 continue;
+ − 4513 else if (cp[0] == '%') /* comment */
+ − 4514 continue;
+ − 4515 else if (cp[0] == '"') /* Sometimes, strings start in column one */
+ − 4516 continue;
+ − 4517 else if (cp[0] == '-') /* attribute, e.g. "-define" */
+ − 4518 {
+ − 4519 erlang_attribute (cp);
+ − 4520 last = NULL;
+ − 4521 }
+ − 4522 else if ((len = erlang_func (cp, last)) > 0)
+ − 4523 {
+ − 4524 /*
+ − 4525 * Function. Store the function name so that we only
+ − 4526 * generates a tag for the first clause.
+ − 4527 */
+ − 4528 if (last == NULL)
+ − 4529 last = xnew (len + 1, char);
+ − 4530 else if (len + 1 > allocated)
+ − 4531 last = xrnew (last, len + 1, char);
+ − 4532 allocated = len + 1;
+ − 4533 strncpy (last, cp, len);
+ − 4534 last[len] = '\0';
+ − 4535 }
+ − 4536 }
+ − 4537 }
+ − 4538
+ − 4539
+ − 4540 /*
+ − 4541 * A function definition is added if it matches:
+ − 4542 * <beginning of line><Erlang Atom><whitespace>(
+ − 4543 *
+ − 4544 * It is added to the tags database if it doesn't match the
+ − 4545 * name of the previous clause header.
+ − 4546 *
+ − 4547 * Return the size of the name of the function, or 0 if no function
+ − 4548 * was found.
+ − 4549 */
+ − 4550 int
+ − 4551 erlang_func (s, last)
+ − 4552 char *s;
+ − 4553 char *last; /* Name of last clause. */
+ − 4554 {
+ − 4555 int pos;
+ − 4556 int len;
+ − 4557
+ − 4558 pos = erlang_atom (s, 0);
+ − 4559 if (pos < 1)
+ − 4560 return 0;
+ − 4561
+ − 4562 len = pos;
+ − 4563 pos = skip_spaces (s + pos) - s;
+ − 4564
+ − 4565 /* Save only the first clause. */
+ − 4566 if (s[pos++] == '('
+ − 4567 && (last == NULL
647
+ − 4568 || len != (int) strlen (last)
428
+ − 4569 || !strneq (s, last, len)))
+ − 4570 {
+ − 4571 pfnote ((CTAGS) ? savenstr (s, len) : NULL, TRUE,
+ − 4572 s, pos, lineno, linecharno);
+ − 4573 return len;
+ − 4574 }
+ − 4575
+ − 4576 return 0;
+ − 4577 }
+ − 4578
+ − 4579
+ − 4580 /*
+ − 4581 * Handle attributes. Currently, tags are generated for defines
+ − 4582 * and records.
+ − 4583 *
+ − 4584 * They are on the form:
+ − 4585 * -define(foo, bar).
+ − 4586 * -define(Foo(M, N), M+N).
+ − 4587 * -record(graph, {vtab = notable, cyclic = true}).
+ − 4588 */
+ − 4589 void
+ − 4590 erlang_attribute (s)
+ − 4591 char *s;
+ − 4592 {
+ − 4593 int pos;
+ − 4594 int len;
+ − 4595
+ − 4596 if (strneq (s, "-define", 7) || strneq (s, "-record", 7))
+ − 4597 {
+ − 4598 pos = skip_spaces (s + 7) - s;
+ − 4599 if (s[pos++] == '(')
+ − 4600 {
+ − 4601 pos = skip_spaces (s + pos) - s;
+ − 4602 len = erlang_atom (s, pos);
+ − 4603 if (len != 0)
+ − 4604 pfnote ((CTAGS) ? savenstr (& s[pos], len) : NULL, TRUE,
+ − 4605 s, pos + len, lineno, linecharno);
+ − 4606 }
+ − 4607 }
+ − 4608 return;
+ − 4609 }
+ − 4610
+ − 4611
+ − 4612 /*
+ − 4613 * Consume an Erlang atom (or variable).
+ − 4614 * Return the number of bytes consumed, or -1 if there was an error.
+ − 4615 */
+ − 4616 int
+ − 4617 erlang_atom (s, pos)
+ − 4618 char *s;
+ − 4619 int pos;
+ − 4620 {
+ − 4621 int origpos;
+ − 4622
+ − 4623 origpos = pos;
+ − 4624
+ − 4625 if (isalpha (s[pos]) || s[pos] == '_')
+ − 4626 {
+ − 4627 /* The atom is unquoted. */
+ − 4628 pos++;
+ − 4629 while (isalnum (s[pos]) || s[pos] == '_')
+ − 4630 pos++;
+ − 4631 return pos - origpos;
+ − 4632 }
+ − 4633 else if (s[pos] == '\'')
+ − 4634 {
+ − 4635 pos++;
+ − 4636
+ − 4637 while (1)
+ − 4638 {
+ − 4639 if (s[pos] == '\'')
+ − 4640 {
+ − 4641 pos++;
+ − 4642 break;
+ − 4643 }
+ − 4644 else if (s[pos] == '\0')
+ − 4645 /* Multiline quoted atoms are ignored. */
+ − 4646 return -1;
+ − 4647 else if (s[pos] == '\\')
+ − 4648 {
+ − 4649 if (s[pos+1] == '\0')
+ − 4650 return -1;
+ − 4651 pos += 2;
+ − 4652 }
+ − 4653 else
+ − 4654 pos++;
+ − 4655 }
+ − 4656 return pos - origpos;
+ − 4657 }
+ − 4658 else
+ − 4659 return -1;
+ − 4660 }
+ − 4661
+ − 4662 #ifdef ETAGS_REGEXPS
+ − 4663
+ − 4664 /* Take a string like "/blah/" and turn it into "blah", making sure
+ − 4665 that the first and last characters are the same, and handling
+ − 4666 quoted separator characters. Actually, stops on the occurrence of
+ − 4667 an unquoted separator. Also turns "\t" into a Tab character.
+ − 4668 Returns pointer to terminating separator. Works in place. Null
+ − 4669 terminates name string. */
+ − 4670 char * scan_separators PP ((char *name));
+ − 4671 char *
+ − 4672 scan_separators (name)
+ − 4673 char *name;
+ − 4674 {
+ − 4675 char sep = name[0];
+ − 4676 char *copyto = name;
+ − 4677 bool quoted = FALSE;
+ − 4678
+ − 4679 for (++name; *name != '\0'; ++name)
+ − 4680 {
+ − 4681 if (quoted)
+ − 4682 {
+ − 4683 if (*name == 't')
+ − 4684 *copyto++ = '\t';
+ − 4685 else if (*name == sep)
+ − 4686 *copyto++ = sep;
+ − 4687 else
+ − 4688 {
+ − 4689 /* Something else is quoted, so preserve the quote. */
+ − 4690 *copyto++ = '\\';
+ − 4691 *copyto++ = *name;
+ − 4692 }
+ − 4693 quoted = FALSE;
+ − 4694 }
+ − 4695 else if (*name == '\\')
+ − 4696 quoted = TRUE;
+ − 4697 else if (*name == sep)
+ − 4698 break;
+ − 4699 else
+ − 4700 *copyto++ = *name;
+ − 4701 }
+ − 4702
+ − 4703 /* Terminate copied string. */
+ − 4704 *copyto = '\0';
+ − 4705 return name;
+ − 4706 }
+ − 4707
+ − 4708 /* Look at the argument of --regex or --no-regex and do the right
+ − 4709 thing. Same for each line of a regexp file. */
+ − 4710 void
+ − 4711 analyse_regex (regex_arg)
+ − 4712 char *regex_arg;
+ − 4713 {
+ − 4714 if (regex_arg == NULL)
+ − 4715 free_patterns (); /* --no-regex: remove existing regexps */
+ − 4716
+ − 4717 /* A real --regexp option or a line in a regexp file. */
+ − 4718 switch (regex_arg[0])
+ − 4719 {
+ − 4720 /* Comments in regexp file or null arg to --regex. */
+ − 4721 case '\0':
+ − 4722 case ' ':
+ − 4723 case '\t':
+ − 4724 break;
+ − 4725
+ − 4726 /* Read a regex file. This is recursive and may result in a
+ − 4727 loop, which will stop when the file descriptors are exhausted. */
+ − 4728 case '@':
+ − 4729 {
+ − 4730 FILE *regexfp;
+ − 4731 linebuffer regexbuf;
+ − 4732 char *regexfile = regex_arg + 1;
+ − 4733
+ − 4734 /* regexfile is a file containing regexps, one per line. */
+ − 4735 regexfp = fopen (regexfile, "r");
+ − 4736 if (regexfp == NULL)
+ − 4737 {
+ − 4738 pfatal (regexfile);
+ − 4739 return;
+ − 4740 }
+ − 4741 initbuffer (®exbuf);
+ − 4742 while (readline_internal (®exbuf, regexfp) > 0)
+ − 4743 analyse_regex (regexbuf.buffer);
+ − 4744 free (regexbuf.buffer);
+ − 4745 fclose (regexfp);
+ − 4746 }
+ − 4747 break;
+ − 4748
+ − 4749 /* Regexp to be used for a specific language only. */
+ − 4750 case '{':
+ − 4751 {
+ − 4752 language *lang;
+ − 4753 char *lang_name = regex_arg + 1;
+ − 4754 char *cp;
+ − 4755
+ − 4756 for (cp = lang_name; *cp != '}'; cp++)
+ − 4757 if (*cp == '\0')
+ − 4758 {
+ − 4759 error ("unterminated language name in regex: %s", regex_arg);
+ − 4760 return;
+ − 4761 }
+ − 4762 *cp = '\0';
+ − 4763 lang = get_language_from_name (lang_name);
+ − 4764 if (lang == NULL)
+ − 4765 return;
+ − 4766 add_regex (cp + 1, lang);
+ − 4767 }
+ − 4768 break;
+ − 4769
+ − 4770 /* Regexp to be used for any language. */
+ − 4771 default:
+ − 4772 add_regex (regex_arg, NULL);
+ − 4773 break;
+ − 4774 }
+ − 4775 }
+ − 4776
+ − 4777 /* Turn a name, which is an ed-style (but Emacs syntax) regular
+ − 4778 expression, into a real regular expression by compiling it. */
+ − 4779 void
+ − 4780 add_regex (regexp_pattern, lang)
+ − 4781 char *regexp_pattern;
+ − 4782 language *lang;
+ − 4783 {
+ − 4784 char *name;
+ − 4785 const char *err;
+ − 4786 struct re_pattern_buffer *patbuf;
+ − 4787 pattern *pp;
+ − 4788
+ − 4789
+ − 4790 if (regexp_pattern[strlen(regexp_pattern)-1] != regexp_pattern[0])
+ − 4791 {
+ − 4792 error ("%s: unterminated regexp", regexp_pattern);
+ − 4793 return;
+ − 4794 }
+ − 4795 name = scan_separators (regexp_pattern);
+ − 4796 if (regexp_pattern[0] == '\0')
+ − 4797 {
+ − 4798 error ("null regexp", (char *)NULL);
+ − 4799 return;
+ − 4800 }
+ − 4801 (void) scan_separators (name);
+ − 4802
+ − 4803 patbuf = xnew (1, struct re_pattern_buffer);
+ − 4804 patbuf->translate = NULL;
+ − 4805 patbuf->fastmap = NULL;
+ − 4806 patbuf->buffer = NULL;
+ − 4807 patbuf->allocated = 0;
+ − 4808
+ − 4809 err = re_compile_pattern (regexp_pattern, strlen (regexp_pattern), patbuf);
+ − 4810 if (err != NULL)
+ − 4811 {
+ − 4812 error ("%s while compiling pattern", err);
+ − 4813 return;
+ − 4814 }
+ − 4815
+ − 4816 pp = p_head;
+ − 4817 p_head = xnew (1, pattern);
+ − 4818 p_head->regex = savestr (regexp_pattern);
+ − 4819 p_head->p_next = pp;
+ − 4820 p_head->language = lang;
+ − 4821 p_head->pattern = patbuf;
+ − 4822 p_head->name_pattern = savestr (name);
+ − 4823 p_head->error_signaled = FALSE;
+ − 4824 }
+ − 4825
+ − 4826 /*
+ − 4827 * Do the substitutions indicated by the regular expression and
+ − 4828 * arguments.
+ − 4829 */
+ − 4830 char * substitute PP ((char *in, char *out, struct re_registers *regs));
+ − 4831 char *
+ − 4832 substitute (in, out, regs)
+ − 4833 char *in, *out;
+ − 4834 struct re_registers *regs;
+ − 4835 {
+ − 4836 char *result, *t;
+ − 4837 int size, dig, diglen;
+ − 4838
+ − 4839 result = NULL;
+ − 4840 size = strlen (out);
+ − 4841
+ − 4842 /* Pass 1: figure out how much to allocate by finding all \N strings. */
+ − 4843 if (out[size - 1] == '\\')
+ − 4844 fatal ("pattern error in \"%s\"", out);
+ − 4845 for (t = etags_strchr (out, '\\');
+ − 4846 t != NULL;
+ − 4847 t = etags_strchr (t + 2, '\\'))
+ − 4848 if (isdigit (t[1]))
+ − 4849 {
+ − 4850 dig = t[1] - '0';
+ − 4851 diglen = regs->end[dig] - regs->start[dig];
+ − 4852 size += diglen - 2;
+ − 4853 }
+ − 4854 else
+ − 4855 size -= 1;
+ − 4856
+ − 4857 /* Allocate space and do the substitutions. */
+ − 4858 result = xnew (size + 1, char);
+ − 4859
+ − 4860 for (t = result; *out != '\0'; out++)
+ − 4861 if (*out == '\\' && isdigit (*++out))
+ − 4862 {
+ − 4863 /* Using "dig2" satisfies my debugger. Bleah. */
+ − 4864 dig = *out - '0';
+ − 4865 diglen = regs->end[dig] - regs->start[dig];
+ − 4866 strncpy (t, in + regs->start[dig], diglen);
+ − 4867 t += diglen;
+ − 4868 }
+ − 4869 else
+ − 4870 *t++ = *out;
+ − 4871 *t = '\0';
+ − 4872
+ − 4873 if (DEBUG && (t > result + size || t - result != strlen (result)))
+ − 4874 abort ();
+ − 4875
+ − 4876 return result;
+ − 4877 }
+ − 4878
+ − 4879 /* Deallocate all patterns. */
+ − 4880 void
+ − 4881 free_patterns ()
+ − 4882 {
+ − 4883 pattern *pp;
+ − 4884 while (p_head != NULL)
+ − 4885 {
+ − 4886 pp = p_head->p_next;
+ − 4887 free (p_head->regex);
+ − 4888 free (p_head->name_pattern);
+ − 4889 free (p_head);
+ − 4890 p_head = pp;
+ − 4891 }
+ − 4892 return;
+ − 4893 }
+ − 4894
+ − 4895 #endif /* ETAGS_REGEXPS */
+ − 4896 /* Initialize a linebuffer for use */
+ − 4897 void
+ − 4898 initbuffer (lbp)
+ − 4899 linebuffer *lbp;
+ − 4900 {
+ − 4901 lbp->size = 200;
+ − 4902 lbp->buffer = xnew (200, char);
+ − 4903 }
+ − 4904
+ − 4905 /*
+ − 4906 * Read a line of text from `stream' into `lbp', excluding the
+ − 4907 * newline or CR-NL, if any. Return the number of characters read from
+ − 4908 * `stream', which is the length of the line including the newline.
+ − 4909 *
+ − 4910 * On DOS or Windows we do not count the CR character, if any, before the
+ − 4911 * NL, in the returned length; this mirrors the behavior of emacs on those
+ − 4912 * platforms (for text files, it translates CR-NL to NL as it reads in the
+ − 4913 * file).
+ − 4914 */
+ − 4915 long
+ − 4916 readline_internal (lbp, stream)
+ − 4917 linebuffer *lbp;
+ − 4918 register FILE *stream;
+ − 4919 {
+ − 4920 char *buffer = lbp->buffer;
+ − 4921 register char *p = lbp->buffer;
+ − 4922 register char *pend;
+ − 4923 int chars_deleted;
+ − 4924
+ − 4925 pend = p + lbp->size; /* Separate to avoid 386/IX compiler bug. */
+ − 4926
+ − 4927 while (1)
+ − 4928 {
+ − 4929 register int c = getc (stream);
+ − 4930 if (p == pend)
+ − 4931 {
+ − 4932 /* We're at the end of linebuffer: expand it. */
+ − 4933 lbp->size *= 2;
+ − 4934 buffer = xrnew (buffer, lbp->size, char);
+ − 4935 p += buffer - lbp->buffer;
+ − 4936 pend = buffer + lbp->size;
+ − 4937 lbp->buffer = buffer;
+ − 4938 }
+ − 4939 if (c == EOF)
+ − 4940 {
+ − 4941 *p = '\0';
+ − 4942 chars_deleted = 0;
+ − 4943 break;
+ − 4944 }
+ − 4945 if (c == '\n')
+ − 4946 {
+ − 4947 if (p > buffer && p[-1] == '\r')
+ − 4948 {
+ − 4949 p -= 1;
442
+ − 4950 #ifdef WIN32_NATIVE
428
+ − 4951 /* Assume CRLF->LF translation will be performed by Emacs
+ − 4952 when loading this file, so CRs won't appear in the buffer.
+ − 4953 It would be cleaner to compensate within Emacs;
+ − 4954 however, Emacs does not know how many CRs were deleted
+ − 4955 before any given point in the file. */
+ − 4956 chars_deleted = 1;
+ − 4957 #else
+ − 4958 chars_deleted = 2;
+ − 4959 #endif
+ − 4960 }
+ − 4961 else
+ − 4962 {
+ − 4963 chars_deleted = 1;
+ − 4964 }
+ − 4965 *p = '\0';
+ − 4966 break;
+ − 4967 }
+ − 4968 *p++ = c;
+ − 4969 }
+ − 4970 lbp->len = p - buffer;
+ − 4971
+ − 4972 return lbp->len + chars_deleted;
+ − 4973 }
+ − 4974
+ − 4975 /*
+ − 4976 * Like readline_internal, above, but in addition try to match the
+ − 4977 * input line against relevant regular expressions.
+ − 4978 */
+ − 4979 long
+ − 4980 readline (lbp, stream)
+ − 4981 linebuffer *lbp;
+ − 4982 FILE *stream;
+ − 4983 {
+ − 4984 /* Read new line. */
+ − 4985 long result = readline_internal (lbp, stream);
+ − 4986 #ifdef ETAGS_REGEXPS
+ − 4987 int match;
+ − 4988 pattern *pp;
+ − 4989
+ − 4990 /* Match against relevant patterns. */
+ − 4991 if (lbp->len > 0)
+ − 4992 for (pp = p_head; pp != NULL; pp = pp->p_next)
+ − 4993 {
+ − 4994 /* Only use generic regexps or those for the current language. */
+ − 4995 if (pp->language != NULL && pp->language != curlang)
+ − 4996 continue;
+ − 4997
+ − 4998 match = re_match (pp->pattern, lbp->buffer, lbp->len, 0, &pp->regs);
+ − 4999 switch (match)
+ − 5000 {
+ − 5001 case -2:
+ − 5002 /* Some error. */
+ − 5003 if (!pp->error_signaled)
+ − 5004 {
+ − 5005 error ("error while matching \"%s\"", pp->regex);
+ − 5006 pp->error_signaled = TRUE;
+ − 5007 }
+ − 5008 break;
+ − 5009 case -1:
+ − 5010 /* No match. */
+ − 5011 break;
+ − 5012 default:
+ − 5013 /* Match occurred. Construct a tag. */
+ − 5014 if (pp->name_pattern[0] != '\0')
+ − 5015 {
+ − 5016 /* Make a named tag. */
+ − 5017 char *name = substitute (lbp->buffer,
+ − 5018 pp->name_pattern, &pp->regs);
+ − 5019 if (name != NULL)
+ − 5020 pfnote (name, TRUE, lbp->buffer, match, lineno, linecharno);
+ − 5021 }
+ − 5022 else
+ − 5023 {
+ − 5024 /* Make an unnamed tag. */
+ − 5025 pfnote ((char *)NULL, TRUE,
+ − 5026 lbp->buffer, match, lineno, linecharno);
+ − 5027 }
+ − 5028 break;
+ − 5029 }
+ − 5030 }
+ − 5031 #endif /* ETAGS_REGEXPS */
+ − 5032
+ − 5033 return result;
+ − 5034 }
+ − 5035
+ − 5036 /*
+ − 5037 * Return a pointer to a space of size strlen(cp)+1 allocated
+ − 5038 * with xnew where the string CP has been copied.
+ − 5039 */
+ − 5040 char *
+ − 5041 savestr (cp)
+ − 5042 char *cp;
+ − 5043 {
+ − 5044 return savenstr (cp, strlen (cp));
+ − 5045 }
+ − 5046
+ − 5047 /*
+ − 5048 * Return a pointer to a space of size LEN+1 allocated with xnew where
+ − 5049 * the string CP has been copied for at most the first LEN characters.
+ − 5050 */
+ − 5051 char *
+ − 5052 savenstr (cp, len)
+ − 5053 char *cp;
+ − 5054 int len;
+ − 5055 {
+ − 5056 register char *dp;
+ − 5057
+ − 5058 dp = xnew (len + 1, char);
+ − 5059 strncpy (dp, cp, len);
+ − 5060 dp[len] = '\0';
+ − 5061 return dp;
+ − 5062 }
+ − 5063
+ − 5064 /*
+ − 5065 * Return the ptr in sp at which the character c last
+ − 5066 * appears; NULL if not found
+ − 5067 *
+ − 5068 * Identical to System V strrchr, included for portability.
+ − 5069 */
+ − 5070 char *
+ − 5071 etags_strrchr (sp, c)
+ − 5072 register char *sp;
+ − 5073 register int c;
+ − 5074 {
+ − 5075 register char *r;
+ − 5076
+ − 5077 r = NULL;
+ − 5078 do
+ − 5079 {
+ − 5080 if (*sp == c)
+ − 5081 r = sp;
+ − 5082 } while (*sp++);
+ − 5083 return r;
+ − 5084 }
+ − 5085
+ − 5086
+ − 5087 /*
+ − 5088 * Return the ptr in sp at which the character c first
+ − 5089 * appears; NULL if not found
+ − 5090 *
+ − 5091 * Identical to System V strchr, included for portability.
+ − 5092 */
+ − 5093 char *
+ − 5094 etags_strchr (sp, c)
+ − 5095 register char *sp;
+ − 5096 register int c;
+ − 5097 {
+ − 5098 do
+ − 5099 {
+ − 5100 if (*sp == c)
+ − 5101 return sp;
+ − 5102 } while (*sp++);
+ − 5103 return NULL;
+ − 5104 }
+ − 5105
+ − 5106 /* Skip spaces, return new pointer. */
+ − 5107 char *
+ − 5108 skip_spaces (cp)
+ − 5109 char *cp;
+ − 5110 {
+ − 5111 while (isspace (*cp)) /* isspace('\0')==FALSE */
+ − 5112 cp++;
+ − 5113 return cp;
+ − 5114 }
+ − 5115
+ − 5116 /* Skip non spaces, return new pointer. */
+ − 5117 char *
+ − 5118 skip_non_spaces (cp)
+ − 5119 char *cp;
+ − 5120 {
+ − 5121 while (!iswhite (*cp)) /* iswhite('\0')==TRUE */
+ − 5122 cp++;
+ − 5123 return cp;
+ − 5124 }
+ − 5125
+ − 5126 /* Print error message and exit. */
+ − 5127 void
+ − 5128 fatal (s1, s2)
+ − 5129 char *s1, *s2;
+ − 5130 {
+ − 5131 error (s1, s2);
+ − 5132 exit (BAD);
+ − 5133 }
+ − 5134
+ − 5135 void
+ − 5136 pfatal (s1)
+ − 5137 char *s1;
+ − 5138 {
+ − 5139 perror (s1);
+ − 5140 exit (BAD);
+ − 5141 }
+ − 5142
+ − 5143 void
+ − 5144 suggest_asking_for_help ()
+ − 5145 {
+ − 5146 fprintf (stderr, "\tTry `%s %s' for a complete list of options.\n",
+ − 5147 progname,
+ − 5148 #ifdef LONG_OPTIONS
+ − 5149 "--help"
+ − 5150 #else
+ − 5151 "-h"
+ − 5152 #endif
+ − 5153 );
+ − 5154 exit (BAD);
+ − 5155 }
+ − 5156
+ − 5157 /* Print error message. `s1' is printf control string, `s2' is arg for it. */
+ − 5158 void
+ − 5159 error (s1, s2)
+ − 5160 const char *s1, *s2;
+ − 5161 {
+ − 5162 fprintf (stderr, "%s: ", progname);
+ − 5163 fprintf (stderr, s1, s2);
+ − 5164 fprintf (stderr, "\n");
+ − 5165 }
+ − 5166
+ − 5167 /* Return a newly-allocated string whose contents
+ − 5168 concatenate those of s1, s2, s3. */
+ − 5169 char *
+ − 5170 concat (s1, s2, s3)
+ − 5171 char *s1, *s2, *s3;
+ − 5172 {
+ − 5173 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
+ − 5174 char *result = xnew (len1 + len2 + len3 + 1, char);
+ − 5175
+ − 5176 strcpy (result, s1);
+ − 5177 strcpy (result + len1, s2);
+ − 5178 strcpy (result + len1 + len2, s3);
+ − 5179 result[len1 + len2 + len3] = '\0';
+ − 5180
+ − 5181 return result;
+ − 5182 }
+ − 5183
+ − 5184 /* Does the same work as the system V getcwd, but does not need to
+ − 5185 guess the buffer size in advance. */
+ − 5186 char *
+ − 5187 etags_getcwd ()
+ − 5188 {
+ − 5189 #ifdef HAVE_GETCWD
+ − 5190 int bufsize = 200;
+ − 5191 char *path = xnew (bufsize, char);
+ − 5192
+ − 5193 while (getcwd (path, bufsize) == NULL)
+ − 5194 {
+ − 5195 if (errno != ERANGE)
+ − 5196 pfatal ("getcwd");
+ − 5197 bufsize *= 2;
+ − 5198 free (path);
+ − 5199 path = xnew (bufsize, char);
+ − 5200 }
+ − 5201
+ − 5202 canonicalize_filename (path);
+ − 5203 return path;
+ − 5204
+ − 5205 #else /* not HAVE_GETCWD */
+ − 5206 linebuffer path;
+ − 5207 FILE *pipe;
+ − 5208
+ − 5209 initbuffer (&path);
+ − 5210 pipe = (FILE *) popen ("pwd 2>/dev/null", "r");
+ − 5211 if (pipe == NULL || readline_internal (&path, pipe) == 0)
+ − 5212 pfatal ("pwd");
+ − 5213 pclose (pipe);
+ − 5214
+ − 5215 return path.buffer;
+ − 5216 #endif /* not HAVE_GETCWD */
+ − 5217 }
+ − 5218
+ − 5219 /* Return a newly allocated string containing the file name of FILE
+ − 5220 relative to the absolute directory DIR (which should end with a slash). */
+ − 5221 char *
+ − 5222 relative_filename (file, dir)
+ − 5223 char *file, *dir;
+ − 5224 {
+ − 5225 char *fp, *dp, *afn, *res;
+ − 5226 int i;
+ − 5227
+ − 5228 /* Find the common root of file and dir (with a trailing slash). */
+ − 5229 afn = absolute_filename (file, cwd);
+ − 5230 fp = afn;
+ − 5231 dp = dir;
+ − 5232 while (*fp++ == *dp++)
+ − 5233 continue;
+ − 5234 fp--, dp--; /* back to the first differing char */
+ − 5235 do /* look at the equal chars until '/' */
+ − 5236 fp--, dp--;
+ − 5237 while (*fp != '/');
+ − 5238
+ − 5239 /* Build a sequence of "../" strings for the resulting relative file name. */
+ − 5240 i = 0;
+ − 5241 while ((dp = etags_strchr (dp + 1, '/')) != NULL)
+ − 5242 i += 1;
+ − 5243 res = xnew (3*i + strlen (fp + 1) + 1, char);
+ − 5244 res[0] = '\0';
+ − 5245 while (i-- > 0)
+ − 5246 strcat (res, "../");
+ − 5247
+ − 5248 /* Add the file name relative to the common root of file and dir. */
+ − 5249 strcat (res, fp + 1);
+ − 5250 free (afn);
+ − 5251
+ − 5252 return res;
+ − 5253 }
+ − 5254
+ − 5255 /* Return a newly allocated string containing the absolute file name
+ − 5256 of FILE given DIR (which should end with a slash). */
+ − 5257 char *
+ − 5258 absolute_filename (file, dir)
+ − 5259 char *file, *dir;
+ − 5260 {
+ − 5261 char *slashp, *cp, *res;
+ − 5262
+ − 5263 if (filename_is_absolute (file))
+ − 5264 res = savestr (file);
442
+ − 5265 #ifdef WIN32_NATIVE
428
+ − 5266 /* We don't support non-absolute file names with a drive
+ − 5267 letter, like `d:NAME' (it's too much hassle). */
+ − 5268 else if (file[1] == ':')
+ − 5269 fatal ("%s: relative file names with drive letters not supported", file);
+ − 5270 #endif
+ − 5271 else
+ − 5272 res = concat (dir, file, "");
+ − 5273
+ − 5274 /* Delete the "/dirname/.." and "/." substrings. */
+ − 5275 slashp = etags_strchr (res, '/');
+ − 5276 while (slashp != NULL && slashp[0] != '\0')
+ − 5277 {
+ − 5278 if (slashp[1] == '.')
+ − 5279 {
+ − 5280 if (slashp[2] == '.'
+ − 5281 && (slashp[3] == '/' || slashp[3] == '\0'))
+ − 5282 {
+ − 5283 cp = slashp;
+ − 5284 do
+ − 5285 cp--;
+ − 5286 while (cp >= res && !filename_is_absolute (cp));
+ − 5287 if (cp < res)
+ − 5288 cp = slashp; /* the absolute name begins with "/.." */
442
+ − 5289 #ifdef WIN32_NATIVE
+ − 5290 /* Under Windows we get `d:/NAME' as absolute
428
+ − 5291 file name, so the luser could say `d:/../NAME'.
+ − 5292 We silently treat this as `d:/NAME'. */
+ − 5293 else if (cp[0] != '/')
+ − 5294 cp = slashp;
+ − 5295 #endif
+ − 5296 strcpy (cp, slashp + 3);
+ − 5297 slashp = cp;
+ − 5298 continue;
+ − 5299 }
+ − 5300 else if (slashp[2] == '/' || slashp[2] == '\0')
+ − 5301 {
+ − 5302 strcpy (slashp, slashp + 2);
+ − 5303 continue;
+ − 5304 }
+ − 5305 }
+ − 5306
+ − 5307 slashp = etags_strchr (slashp + 1, '/');
+ − 5308 }
+ − 5309
+ − 5310 if (res[0] == '\0')
+ − 5311 return savestr ("/");
+ − 5312 else
+ − 5313 return res;
+ − 5314 }
+ − 5315
+ − 5316 /* Return a newly allocated string containing the absolute
+ − 5317 file name of dir where FILE resides given DIR (which should
+ − 5318 end with a slash). */
+ − 5319 char *
+ − 5320 absolute_dirname (file, dir)
+ − 5321 char *file, *dir;
+ − 5322 {
+ − 5323 char *slashp, *res;
+ − 5324 char save;
+ − 5325
+ − 5326 canonicalize_filename (file);
+ − 5327 slashp = etags_strrchr (file, '/');
+ − 5328 if (slashp == NULL)
+ − 5329 return savestr (dir);
+ − 5330 save = slashp[1];
+ − 5331 slashp[1] = '\0';
+ − 5332 res = absolute_filename (file, dir);
+ − 5333 slashp[1] = save;
+ − 5334
+ − 5335 return res;
+ − 5336 }
+ − 5337
+ − 5338 /* Whether the argument string is an absolute file name. The argument
+ − 5339 string must have been canonicalized with canonicalize_filename. */
+ − 5340 bool
+ − 5341 filename_is_absolute (fn)
+ − 5342 char *fn;
+ − 5343 {
+ − 5344 return (fn[0] == '/'
442
+ − 5345 #ifdef WIN32_NATIVE
428
+ − 5346 || (isalpha(fn[0]) && fn[1] == ':' && fn[2] == '/')
+ − 5347 #endif
+ − 5348 );
+ − 5349 }
+ − 5350
+ − 5351 /* Translate backslashes into slashes. Works in place. */
+ − 5352 void
+ − 5353 canonicalize_filename (fn)
+ − 5354 register char *fn;
+ − 5355 {
442
+ − 5356 #ifdef WIN32_NATIVE
428
+ − 5357 for (; *fn != '\0'; fn++)
+ − 5358 if (*fn == '\\')
+ − 5359 *fn = '/';
+ − 5360 #else
+ − 5361 /* No action. */
+ − 5362 #endif
+ − 5363 }
+ − 5364
+ − 5365 /* Increase the size of a linebuffer. */
+ − 5366 void
+ − 5367 grow_linebuffer (lbp, toksize)
+ − 5368 linebuffer *lbp;
+ − 5369 int toksize;
+ − 5370 {
+ − 5371 while (lbp->size < toksize)
+ − 5372 lbp->size *= 2;
+ − 5373 lbp->buffer = xrnew (lbp->buffer, lbp->size, char);
+ − 5374 }
+ − 5375
+ − 5376 /* Like malloc but get fatal error if memory is exhausted. */
+ − 5377 long *
+ − 5378 xmalloc (size)
+ − 5379 unsigned int size;
+ − 5380 {
+ − 5381 long *result = (long *) malloc (size);
+ − 5382 if (result == NULL)
+ − 5383 fatal ("virtual memory exhausted", (char *)NULL);
+ − 5384 return result;
+ − 5385 }
+ − 5386
+ − 5387 long *
+ − 5388 xrealloc (ptr, size)
+ − 5389 char *ptr;
+ − 5390 unsigned int size;
+ − 5391 {
+ − 5392 long *result = (long *) realloc (ptr, size);
+ − 5393 if (result == NULL)
+ − 5394 fatal ("virtual memory exhausted", (char *)NULL);
+ − 5395 return result;
+ − 5396 }
