From db59058201446a651dd28697590ad5fbc25383ea Mon Sep 17 00:00:00 2001 From: =?utf8?q?Francesco=20Potort=C3=AC?= Date: Tue, 5 Mar 2002 11:28:26 +0000 Subject: [PATCH 1/1] * etags.c: Honour #line directives. (no_line_directive): New global var; set it for old behaviour. (main): Remove some #ifdef in the getopt switch. (add_node, put_entries): Code added to merge different chunks of nodes referring to the same file. Currently the tags are just appended, without any check for duplicates. (Perl_functions): Do not special case ctags. (readline): Identify #line directives and do the right thing. (nocharno, invalidcharno): New global vars. (process_file): Reset nocharno. (readline): Set nocharno. (pfnote): Read nocharno and maybe put invalidcharno in node. (total_size_of_entries, put_entries): Use invalidcharno. * etags.c: Keep the whole tag table in memory, even in etags mode. (main): Call put_entries here even in CTAGS mode. (main, process_file): Check the return values of fclose and pclose. (process_file): Do not call put_entries after parsing each file. (process_file): Canonicalise file names even for ctags. (process_file): Set curfile here... (find_entries): ... not here any more. (add_node): In etags mode, build a linked list of entries (on right pointer) for each file, and link the first entry of each file on left nodes. (put_entries): Print here the name of the file. (put_entries): Print the entries starting from the first file. (number_len, total_size_of_entries): Define these only iin etags mode, make the second work only on the right nodes. * etags.c: Make all global variables static. --- lib-src/etags.c | 595 ++++++++++++++++++++++++++---------------------- 1 file changed, 321 insertions(+), 274 deletions(-) diff --git a/lib-src/etags.c b/lib-src/etags.c index 950389545a..52e9d291d0 100644 --- a/lib-src/etags.c +++ b/lib-src/etags.c @@ -33,7 +33,7 @@ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ * Francesco Potortì has maintained it since 1993. */ -char pot_etags_version[] = "@(#) pot revision number is 14.35"; +char pot_etags_version[] = "@(#) pot revision number is 14.39"; #define TRUE 1 #define FALSE 0 @@ -299,13 +299,11 @@ static void print_language_names __P((void)); static void print_version __P((void)); static void print_help __P((void)); int main __P((int, char **)); -static int number_len __P((long)); static compressor *get_compressor_from_suffix __P((char *, char **)); static language *get_language_from_langname __P((const char *)); static language *get_language_from_interpreter __P((char *)); static language *get_language_from_filename __P((char *)); -static int total_size_of_entries __P((node *)); static long readline __P((linebuffer *, FILE *)); static long readline_internal __P((linebuffer *, FILE *)); static bool nocase_tail __P((char *)); @@ -345,33 +343,35 @@ static char *absolute_dirname __P((char *, char *)); static bool filename_is_absolute __P((char *f)); static void canonicalize_filename __P((char *)); static void linebuffer_setlen __P((linebuffer *, int)); -PTR xmalloc __P((unsigned int)); -PTR xrealloc __P((char *, unsigned int)); +static PTR xmalloc __P((unsigned int)); +static PTR xrealloc __P((char *, unsigned int)); -char searchar = '/'; /* use /.../ searches */ +static char searchar = '/'; /* use /.../ searches */ -char *tagfile; /* output file */ -char *progname; /* name this program was invoked with */ -char *cwd; /* current working directory */ -char *tagfiledir; /* directory of tagfile */ -FILE *tagf; /* ioptr for tags file */ +static char *tagfile; /* output file */ +static char *progname; /* name this program was invoked with */ +static char *cwd; /* current working directory */ +static char *tagfiledir; /* directory of tagfile */ +static FILE *tagf; /* ioptr for tags file */ -char *curfile; /* current input file name */ -language *curlang; /* current language */ +static char *curfile; /* current input file name */ +static language *curlang; /* current language */ -int lineno; /* line number of current line */ -long charno; /* current character number */ -long linecharno; /* charno of start of current line */ -char *dbp; /* pointer to start of current tag */ +static int lineno; /* line number of current line */ +static long charno; /* current character number */ +static long linecharno; /* charno of start of current line */ +static char *dbp; /* pointer to start of current tag */ +static bool nocharno; /* only use line number when making tag */ +static const int invalidcharno = -1; -node *head; /* the head of the binary tree of tags */ +static node *head; /* the head of the binary tree of tags */ -linebuffer lb; /* the current line */ +static linebuffer lb; /* the current line */ /* boolean "functions" (see init) */ -bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS]; -char +static bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS]; +static char /* white chars */ *white = " \f\t\n\r\v", /* not in a name */ @@ -383,58 +383,60 @@ char /* valid in-token chars */ *midtk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$0123456789"; -bool append_to_tagfile; /* -a: append to tags */ +static bool append_to_tagfile; /* -a: append to tags */ /* The following four default to TRUE for etags, but to FALSE for ctags. */ -bool typedefs; /* -t: create tags for C and Ada typedefs */ -bool typedefs_or_cplusplus; /* -T: create tags for C typedefs, level */ +static bool typedefs; /* -t: create tags for C and Ada typedefs */ +static bool typedefs_or_cplusplus; /* -T: create tags for C typedefs, level */ /* 0 struct/enum/union decls, and C++ */ /* member functions. */ -bool constantypedefs; /* -d: create tags for C #define, enum */ +static bool constantypedefs; /* -d: create tags for C #define, enum */ /* constants and variables. */ /* -D: opposite of -d. Default under ctags. */ -bool declarations; /* --declarations: tag them and extern in C&Co*/ -bool globals; /* create tags for global variables */ -bool members; /* create tags for C member variables */ -bool update; /* -u: update tags */ -bool vgrind_style; /* -v: create vgrind style index output */ -bool no_warnings; /* -w: suppress warnings */ -bool cxref_style; /* -x: create cxref style output */ -bool cplusplus; /* .[hc] means C++, not C */ -bool noindentypedefs; /* -I: ignore indentation in C */ -bool packages_only; /* --packages-only: in Ada, only tag packages*/ +static bool declarations; /* --declarations: tag them and extern in C&Co*/ +static bool globals; /* create tags for global variables */ +static bool no_line_directive; /* ignore #line directives */ +static bool members; /* create tags for C member variables */ +static bool update; /* -u: update tags */ +static bool vgrind_style; /* -v: create vgrind style index output */ +static bool no_warnings; /* -w: suppress warnings */ +static bool cxref_style; /* -x: create cxref style output */ +static bool cplusplus; /* .[hc] means C++, not C */ +static bool noindentypedefs; /* -I: ignore indentation in C */ +static bool packages_only; /* --packages-only: in Ada, only tag packages*/ #ifdef LONG_OPTIONS -struct option longopts[] = +static struct option longopts[] = { - { "packages-only", no_argument, &packages_only, TRUE }, - { "append", no_argument, NULL, 'a' }, - { "backward-search", no_argument, NULL, 'B' }, - { "c++", no_argument, NULL, 'C' }, - { "cxref", no_argument, NULL, 'x' }, - { "defines", no_argument, NULL, 'd' }, - { "declarations", no_argument, &declarations, TRUE }, - { "no-defines", no_argument, NULL, 'D' }, - { "globals", no_argument, &globals, TRUE }, - { "no-globals", no_argument, &globals, FALSE }, - { "help", no_argument, NULL, 'h' }, - { "help", no_argument, NULL, 'H' }, - { "ignore-indentation", no_argument, NULL, 'I' }, - { "include", required_argument, NULL, 'i' }, - { "language", required_argument, NULL, 'l' }, - { "members", no_argument, &members, TRUE }, - { "no-members", no_argument, &members, FALSE }, - { "no-warn", no_argument, NULL, 'w' }, - { "output", required_argument, NULL, 'o' }, + { "packages-only", no_argument, &packages_only, TRUE }, + { "append", no_argument, NULL, 'a' }, + { "backward-search", no_argument, NULL, 'B' }, + { "c++", no_argument, NULL, 'C' }, + { "cxref", no_argument, NULL, 'x' }, + { "defines", no_argument, NULL, 'd' }, + { "declarations", no_argument, &declarations, TRUE }, + { "no-defines", no_argument, NULL, 'D' }, + { "globals", no_argument, &globals, TRUE }, + { "no-globals", no_argument, &globals, FALSE }, + { "no-line-directive", no_argument, &no_line_directive, TRUE }, + { "help", no_argument, NULL, 'h' }, + { "help", no_argument, NULL, 'H' }, + { "ignore-indentation", no_argument, NULL, 'I' }, + { "include", required_argument, NULL, 'i' }, + { "language", required_argument, NULL, 'l' }, + { "members", no_argument, &members, TRUE }, + { "no-members", no_argument, &members, FALSE }, + { "no-warn", no_argument, NULL, 'w' }, + { "output", required_argument, NULL, 'o' }, #ifdef ETAGS_REGEXPS - { "regex", required_argument, NULL, 'r' }, - { "no-regex", no_argument, NULL, 'R' }, - { "ignore-case-regex", required_argument, NULL, 'c' }, + { "regex", required_argument, NULL, 'r' }, + { "no-regex", no_argument, NULL, 'R' }, + { "ignore-case-regex", required_argument, NULL, 'c' }, #endif /* ETAGS_REGEXPS */ - { "typedefs", no_argument, NULL, 't' }, - { "typedefs-and-c++", no_argument, NULL, 'T' }, - { "update", no_argument, NULL, 'u' }, - { "version", no_argument, NULL, 'V' }, - { "vgrind", no_argument, NULL, 'v' }, + { "typedefs", no_argument, NULL, 't' }, + { "typedefs-and-c++", no_argument, NULL, 'T' }, + { "update", no_argument, NULL, 'u' }, + { "version", no_argument, NULL, 'V' }, + { "vgrind", no_argument, NULL, 'v' }, { NULL } }; #endif /* LONG_OPTIONS */ @@ -454,15 +456,15 @@ typedef struct pattern } pattern; /* List of all regexps. */ -pattern *p_head = NULL; +static pattern *p_head = NULL; /* How many characters in the character set. (From regex.c.) */ #define CHAR_SET_SIZE 256 /* Translation table for case-insensitive matching. */ -char lc_trans[CHAR_SET_SIZE]; +static char lc_trans[CHAR_SET_SIZE]; #endif /* ETAGS_REGEXPS */ -compressor compressors[] = +static compressor compressors[] = { { "z", "gzip -d -c"}, { "Z", "gzip -d -c"}, @@ -477,94 +479,96 @@ compressor compressors[] = */ /* Non-NULL if language fixed. */ -language *forced_lang = NULL; +static language *forced_lang = NULL; /* Ada code */ -char *Ada_suffixes [] = +static char *Ada_suffixes [] = { "ads", "adb", "ada", NULL }; /* Assembly code */ -char *Asm_suffixes [] = { "a", /* Unix assembler */ - "asm", /* Microcontroller assembly */ - "def", /* BSO/Tasking definition includes */ - "inc", /* Microcontroller include files */ - "ins", /* Microcontroller include files */ - "s", "sa", /* Unix assembler */ - "S", /* cpp-processed Unix assembler */ - "src", /* BSO/Tasking C compiler output */ - NULL - }; +static char *Asm_suffixes [] = + { "a", /* Unix assembler */ + "asm", /* Microcontroller assembly */ + "def", /* BSO/Tasking definition includes */ + "inc", /* Microcontroller include files */ + "ins", /* Microcontroller include files */ + "s", "sa", /* Unix assembler */ + "S", /* cpp-processed Unix assembler */ + "src", /* BSO/Tasking C compiler output */ + NULL + }; /* Note that .c and .h can be considered C++, if the --c++ flag was given, or if the `class' keyowrd is met inside the file. That is why default_C_entries is called for these. */ -char *default_C_suffixes [] = +static char *default_C_suffixes [] = { "c", "h", NULL }; -char *Cplusplus_suffixes [] = +static char *Cplusplus_suffixes [] = { "C", "c++", "cc", "cpp", "cxx", "H", "h++", "hh", "hpp", "hxx", "M", /* Objective C++ */ "pdb", /* Postscript with C syntax */ NULL }; -char *Cjava_suffixes [] = +static char *Cjava_suffixes [] = { "java", NULL }; -char *Cobol_suffixes [] = +static char *Cobol_suffixes [] = { "COB", "cob", NULL }; -char *Cstar_suffixes [] = +static char *Cstar_suffixes [] = { "cs", "hs", NULL }; -char *Erlang_suffixes [] = +static char *Erlang_suffixes [] = { "erl", "hrl", NULL }; -char *Fortran_suffixes [] = +static char *Fortran_suffixes [] = { "F", "f", "f90", "for", NULL }; -char *Lisp_suffixes [] = +static char *Lisp_suffixes [] = { "cl", "clisp", "el", "l", "lisp", "LSP", "lsp", "ml", NULL }; -char *Makefile_filenames [] = +static char *Makefile_filenames [] = { "Makefile", "makefile", "GNUMakefile", "Makefile.in", "Makefile.am", NULL}; -char *Pascal_suffixes [] = +static char *Pascal_suffixes [] = { "p", "pas", NULL }; -char *Perl_suffixes [] = +static char *Perl_suffixes [] = { "pl", "pm", NULL }; -char *Perl_interpreters [] = + +static char *Perl_interpreters [] = { "perl", "@PERL@", NULL }; -char *PHP_suffixes [] = +static char *PHP_suffixes [] = { "php", "php3", "php4", NULL }; -char *plain_C_suffixes [] = +static char *plain_C_suffixes [] = { "lm", /* Objective lex file */ "m", /* Objective C file */ "pc", /* Pro*C file */ NULL }; -char *Postscript_suffixes [] = +static char *Postscript_suffixes [] = { "ps", "psw", NULL }; /* .psw is for PSWrap */ -char *Prolog_suffixes [] = +static char *Prolog_suffixes [] = { "prolog", NULL }; -char *Python_suffixes [] = +static char *Python_suffixes [] = { "py", NULL }; /* Can't do the `SCM' or `scm' prefix with a version number. */ -char *Scheme_suffixes [] = +static char *Scheme_suffixes [] = { "oak", "sch", "scheme", "SCM", "scm", "SM", "sm", "ss", "t", NULL }; -char *TeX_suffixes [] = +static char *TeX_suffixes [] = { "bib", "clo", "cls", "ltx", "sty", "TeX", "tex", NULL }; -char *Texinfo_suffixes [] = +static char *Texinfo_suffixes [] = { "texi", "texinfo", "txi", NULL }; -char *Yacc_suffixes [] = +static char *Yacc_suffixes [] = { "y", "y++", "ym", "yxx", "yy", NULL }; /* .ym is Objective yacc file */ /* @@ -574,7 +578,7 @@ char *Yacc_suffixes [] = * name. I just didn't. */ -language lang_names [] = +static language lang_names [] = { { "ada", Ada_funcs, NULL, Ada_suffixes, NULL }, { "asm", Asm_labels, NULL, Asm_suffixes, NULL }, @@ -1042,7 +1046,6 @@ main (argc, argv) } } break; -#ifdef ETAGS_REGEXPS case 'r': argbuffer[current_arg].arg_type = at_regexp; argbuffer[current_arg].what = optarg; @@ -1058,7 +1061,6 @@ main (argc, argv) argbuffer[current_arg].what = optarg; ++current_arg; break; -#endif /* ETAGS_REGEXPS */ case 'V': print_version (); break; @@ -1072,19 +1074,16 @@ main (argc, argv) case 'T': typedefs = typedefs_or_cplusplus = TRUE; break; -#if (!CTAGS) /* Etags options */ case 'i': included_files[nincluded_files++] = optarg; break; -#else /* CTAGS */ /* Ctags options. */ case 'B': searchar = '?'; break; case 'u': update = TRUE; break; case 'v': vgrind_style = TRUE; /*FALLTHRU*/ case 'x': cxref_style = TRUE; break; case 'w': no_warnings = TRUE; break; -#endif /* CTAGS */ default: suggest_asking_for_help (); } @@ -1193,22 +1192,17 @@ main (argc, argv) free_patterns (); #endif /* ETAGS_REGEXPS */ - if (!CTAGS) - { - while (nincluded_files-- > 0) - fprintf (tagf, "\f\n%s,include\n", *included_files++); - - fclose (tagf); - exit (GOOD); - } - - /* If CTAGS, we are here. process_file did not write the tags yet, - because we want them ordered. Let's do it now. */ - if (cxref_style) + if (!CTAGS || cxref_style) { put_entries (head); free_tree (head); head = NULL; + if (!CTAGS) + while (nincluded_files-- > 0) + fprintf (tagf, "\f\n%s,include\n", *included_files++); + + if (fclose (tagf) == EOF) + pfatal (tagfile); exit (GOOD); } @@ -1234,7 +1228,8 @@ main (argc, argv) put_entries (head); free_tree (head); head = NULL; - fclose (tagf); + if (fclose (tagf) == EOF) + pfatal (tagfile); if (update) { @@ -1379,6 +1374,7 @@ process_file (file) compressor *compr; char *compressed_name, *uncompressed_name; char *ext, *real_name; + int retval; canonicalize_filename (file); @@ -1486,34 +1482,26 @@ process_file (file) goto exit; } + if (filename_is_absolute (uncompressed_name)) + { + /* file is an absolute file name. Canonicalise it. */ + curfile = absolute_filename (uncompressed_name, cwd); + } + else + { + /* file is a file name relative to cwd. Make it relative + to the directory of the tags file. */ + curfile = relative_filename (uncompressed_name, tagfiledir); + } + nocharno = FALSE; /* use char position when making tags */ find_entries (uncompressed_name, inf); if (real_name == compressed_name) - pclose (inf); + retval = pclose (inf); else - fclose (inf); - - if (!CTAGS) - { - char *filename; - - if (filename_is_absolute (uncompressed_name)) - { - /* file is an absolute file name. Canonicalise it. */ - filename = absolute_filename (uncompressed_name, cwd); - } - else - { - /* file is a file name relative to cwd. Make it relative - to the directory of the tags file. */ - filename = relative_filename (uncompressed_name, tagfiledir); - } - fprintf (tagf, "\f\n%s,%d\n", filename, total_size_of_entries (head)); - free (filename); - put_entries (head); - free_tree (head); - head = NULL; - } + retval = fclose (inf); + if (retval < 0) + pfatal (file); exit: if (compressed_name) free(compressed_name); @@ -1552,7 +1540,7 @@ init () * This routine opens the specified file and calls the function * which finds the function and type definitions. */ -node *last_node = NULL; +static node *last_node = NULL; static void find_entries (file, inf) @@ -1563,13 +1551,6 @@ find_entries (file, inf) language *lang; node *old_last_node; - /* Memory leakage here: the string pointed by curfile is - never released, because curfile is copied into np->file - for each node, to be used in CTAGS mode. The amount of - memory leaked here is the sum of the lengths of the - file names. */ - curfile = savestr (file); - /* If user specified a language, use it. */ lang = forced_lang; if (lang != NULL && lang->function != NULL) @@ -1673,12 +1654,15 @@ pfnote (name, is_func, linestart, linelen, lno, cno) np->file = curfile; np->is_func = is_func; np->lno = lno; - /* Our char numbers are 0-base, because of C language tradition? - ctags compatibility? old versions compatibility? I don't know. - Anyway, since emacs's are 1-base we expect etags.el to take care - of the difference. If we wanted to have 1-based numbers, we would - uncomment the +1 below. */ - np->cno = cno /* + 1 */ ; + if (nocharno) + np->cno = invalidcharno; + else + /* Our char numbers are 0-base, because of C language tradition? + ctags compatibility? old versions compatibility? I don't know. + Anyway, since emacs's are 1-base we expect etags.el to take care + of the difference. If we wanted to have 1-based numbers, we would + uncomment the +1 below. */ + np->cno = cno /* + 1 */ ; np->left = np->right = NULL; if (CTAGS && !cxref_style) { @@ -1771,9 +1755,9 @@ free_tree (np) /* * add_node () - * Adds a node to the tree of nodes. In etags mode, we don't keep - * it sorted; we just keep a linear list. In ctags mode, maintain - * an ordered tree, with no attempt at balancing. + * Adds a node to the tree of nodes. In etags mode, sort by file + * name. In ctags mode, sort by tag name. Make no attempt at + * balancing. * * add_node is the only function allowed to add nodes, so it can * maintain state. @@ -1795,10 +1779,27 @@ add_node (np, cur_node_p) if (!CTAGS) { /* Etags Mode */ - if (last_node == NULL) - fatal ("internal error in add_node", (char *)NULL); - last_node->right = np; - last_node = np; + assert (last_node != NULL); + /* For each file name, tags are in a linked sublist on the right + pointer. The first tags of different files are a linked list + on the left pointer. last_node points to the end of the last + used sublist. */ + if (last_node->file == np->file) + { + /* Let's use the same sublist as the last added node. */ + last_node->right = np; + last_node = np; + } + else if (streq (cur_node->file, np->file)) + { + /* Scanning the list we found the head of a sublist which is + good for us. Let's scan this sublist. */ + add_node (np, &cur_node->right); + } + else + /* The head of this sublist is not good for us. Let's try the + next one. */ + add_node (np, &cur_node->left); } else { @@ -1837,31 +1838,89 @@ add_node (np, cur_node_p) } +#if !CTAGS +static int total_size_of_entries __P((node *)); +static int number_len __P((long)); + +/* Length of a number's decimal representation. */ +static int +number_len (num) + long num; +{ + int len = 1; + while ((num /= 10) > 0) + len += 1; + return len; +} + +/* + * Return total number of characters that put_entries will output for + * the nodes in the linked list at the right of the specified node. + * This count is irrelevant with etags.el since emacs 19.34 at least, + * but is still supplied for backward compatibility. + */ +static int +total_size_of_entries (np) + register node *np; +{ + register int total = 0; + + for (; np != NULL; np = np->right) + { + total += strlen (np->pat) + 1; /* pat\177 */ + if (np->name != NULL) + total += strlen (np->name) + 1; /* name\001 */ + total += number_len ((long) np->lno) + 1; /* lno, */ + if (np->cno != invalidcharno) /* cno */ + total += number_len (np->cno); + total += 1; /* newline */ + } + + return total; +} +#endif + static void put_entries (np) register node *np; { register char *sp; + static char *file = NULL; if (np == NULL) return; /* Output subentries that precede this one */ - put_entries (np->left); + if (CTAGS) + put_entries (np->left); /* Output this entry */ - if (!CTAGS) { + /* Etags mode */ + if (file != np->file + && (file == NULL || !streq (file, np->file))) + { + file = np->file; + fprintf (tagf, "\f\n%s,%d\n", + file, total_size_of_entries (np)); + } + fputs (np->pat, tagf); + fputc ('\177', tagf); if (np->name != NULL) - fprintf (tagf, "%s\177%s\001%d,%ld\n", - np->pat, np->name, np->lno, np->cno); + { + fputs (np->name, tagf); + fputc ('\001', tagf); + } + fprintf (tagf, "%d,", np->lno); + if (np->cno == invalidcharno) + fputc ('\n', tagf); else - fprintf (tagf, "%s\177%d,%ld\n", - np->pat, np->lno, np->cno); + fprintf (tagf, "%ld\n", np->cno); } else { + /* Ctags mode */ if (np->name == NULL) error ("internal error: NULL name in ctags mode.", (char *)NULL); @@ -1899,50 +1958,11 @@ put_entries (np) } } + /* Output subentries that follow this one */ put_entries (np->right); -} - -/* Length of a number's decimal representation. */ -static int -number_len (num) - long num; -{ - int len = 1; - while ((num /= 10) > 0) - len += 1; - return len; -} - -/* - * Return total number of characters that put_entries will output for - * the nodes in the subtree of the specified node. Works only if - * we are not ctags, but called only in that case. This count - * is irrelevant with the new tags.el, but is still supplied for - * backward compatibility. - */ -static int -total_size_of_entries (np) - register node *np; -{ - register int total; - - if (np == NULL) - return 0; - - for (total = 0; np != NULL; np = np->right) - { - /* Count left subentries. */ - total += total_size_of_entries (np->left); - - /* Count this entry */ - total += strlen (np->pat) + 1; - total += number_len ((long) np->lno) + 1 + number_len (np->cno) + 1; - if (np->name != NULL) - total += 1 + strlen (np->name); /* \001name */ - } - - return total; + if (!CTAGS) + put_entries (np->left); } @@ -2033,7 +2053,7 @@ PSEUDO, 0, st_C_gnumacro #DEFVAR_, 0, st_C_gnumacro %] and replace lines between %< and %> with its output, -then make in_word_set static. */ +then make in_word_set and C_stab_entry static. */ /*%<*/ /* C code produced by gperf version 2.7.1 (19981006 egcs) */ /* Command-line: gperf -c -k 1,3 -o -p -r -t */ @@ -2218,7 +2238,7 @@ C_symtype (str, len, c_ext) * C functions and variables are recognized using a simple * finite automaton. fvdef is its state variable. */ -enum +static enum { fvnone, /* nothing seen */ fdefunkey, /* Emacs DEFUN keyword seen */ @@ -2232,13 +2252,13 @@ enum vignore /* var-like: ignore until ';' */ } fvdef; -bool fvextern; /* func or var: extern keyword seen; */ +static bool fvextern; /* func or var: extern keyword seen; */ /* * typedefs are recognized using a simple finite automaton. * typdef is its state variable. */ -enum +static enum { tnone, /* nothing seen */ tkeyseen, /* typedef keyword seen */ @@ -2253,7 +2273,7 @@ enum * using another simple finite automaton. `structdef' is its state * variable. */ -enum +static enum { snone, /* nothing seen yet, or in struct body if cblev > 0 */ @@ -2266,12 +2286,12 @@ enum /* * When objdef is different from onone, objtag is the name of the class. */ -char *objtag = ""; +static char *objtag = ""; /* * Yet another little state machine to deal with preprocessor lines. */ -enum +static enum { dnone, /* nothing seen */ dsharpseen, /* '#' seen as first char on line */ @@ -2283,7 +2303,7 @@ enum * State machine for Objective C protocols and implementations. * Idea by Tom R.Hageman (1995) */ -enum +static enum { onone, /* nothing seen */ oprotocol, /* @interface or @protocol seen */ @@ -2304,7 +2324,7 @@ enum * Use this structure to keep info about the token read, and how it * should be tagged. Used by the make_C_tag function to build a tag. */ -struct tok +static struct tok { bool valid; bool named; @@ -2314,7 +2334,7 @@ struct tok long linepos; char *line; } token; /* latest token read */ -linebuffer token_name; /* its name */ +static linebuffer token_name; /* its name */ /* * Variables and functions for dealing with nested structures. @@ -2324,7 +2344,7 @@ static void pushclass_above __P((int, char *, int)); static void popclass_above __P((int)); static void write_classname __P((linebuffer *, char *qualifier)); -struct { +static struct { char **cname; /* nested class names */ int *cblev; /* nested class curly brace level */ int nl; /* class nesting level (elements used) */ @@ -2711,7 +2731,7 @@ consider_token (str, len, c, c_extp, cblev, parlev, is_func_or_var) * the line currently read. By keeping two line buffers, and switching * them at end of line, it is possible to use those pointers. */ -struct +static struct { long linepos; linebuffer lb; @@ -4027,8 +4047,8 @@ Perl_functions (inf) /* Perhaps I should back cp up one character, so the TAGS table doesn't mention (and so depend upon) the following char. */ - pfnote ((CTAGS) ? savenstr (lb.buffer, cp-lb.buffer) : varname, - FALSE, lb.buffer, cp - lb.buffer + 1, lineno, linecharno); + pfnote (varname, FALSE, + lb.buffer, cp - lb.buffer + 1, lineno, linecharno); } } } @@ -4507,12 +4527,12 @@ struct TEX_tabent int len; }; -struct TEX_tabent *TEX_toktab = NULL; /* Table with tag tokens */ +static struct TEX_tabent *TEX_toktab = NULL; /* Table with tag tokens */ /* Default set of control sequences to put into TEX_toktab. The value of environment var TEXTAGS is prepended to this. */ -char *TEX_defenv = "\ +static char *TEX_defenv = "\ :chapter:section:subsection:subsubsection:eqno:label:ref:cite:bibitem\ :part:appendix:entry:index"; @@ -4520,9 +4540,9 @@ static void TEX_mode __P((FILE *)); static struct TEX_tabent *TEX_decode_env __P((char *, char *)); static int TEX_Token __P((char *)); -char TEX_esc = '\\'; -char TEX_opgrp = '{'; -char TEX_clgrp = '}'; +static char TEX_esc = '\\'; +static char TEX_opgrp = '{'; +static char TEX_clgrp = '}'; /* * TeX/LaTeX scanning loop. @@ -5406,51 +5426,78 @@ readline (lbp, stream) { /* Read new line. */ long result = readline_internal (lbp, stream); + + if (!no_line_directive + && result > 12 && strneq (lbp->buffer, "#line ", 6)) + { + int start, lno; + + if (sscanf (lbp->buffer, "#line %d \"%n", &lno, &start) == 1) + { + char *endp = lbp->buffer + start; + + while ((endp = etags_strchr (endp, '"')) != NULL + && endp[-1] == '\\') + endp++; + if (endp != NULL) + { + int len = endp - (lbp->buffer + start); + + if (!strneq (curfile, lbp->buffer + start, len)) + curfile = savenstr (lbp->buffer + start, len); + lineno = lno; + nocharno = TRUE; /* do not use char position for tags */ + return readline (lbp, stream); + } + } + } #ifdef ETAGS_REGEXPS - int match; - pattern *pp; + { + int match; + pattern *pp; - /* Match against relevant patterns. */ - if (lbp->len > 0) - for (pp = p_head; pp != NULL; pp = pp->p_next) - { - /* Only use generic regexps or those for the current language. */ - if (pp->lang != NULL && pp->lang != curlang) - continue; + /* Match against relevant patterns. */ + if (lbp->len > 0) + for (pp = p_head; pp != NULL; pp = pp->p_next) + { + /* Only use generic regexps or those for the current language. */ + if (pp->lang != NULL && pp->lang != curlang) + continue; - match = re_match (pp->pat, lbp->buffer, lbp->len, 0, &pp->regs); - switch (match) - { - case -2: - /* Some error. */ - if (!pp->error_signaled) - { - error ("error while matching \"%s\"", pp->regex); - pp->error_signaled = TRUE; - } - break; - case -1: - /* No match. */ - break; - default: - /* Match occurred. Construct a tag. */ - if (pp->name_pattern[0] != '\0') - { - /* Make a named tag. */ - char *name = substitute (lbp->buffer, - pp->name_pattern, &pp->regs); - if (name != NULL) - pfnote (name, TRUE, lbp->buffer, match, lineno, linecharno); - } - else - { - /* Make an unnamed tag. */ - pfnote ((char *)NULL, TRUE, - lbp->buffer, match, lineno, linecharno); - } - break; - } - } + match = re_match (pp->pat, lbp->buffer, lbp->len, 0, &pp->regs); + switch (match) + { + case -2: + /* Some error. */ + if (!pp->error_signaled) + { + error ("error while matching \"%s\"", pp->regex); + pp->error_signaled = TRUE; + } + break; + case -1: + /* No match. */ + break; + default: + /* Match occurred. Construct a tag. */ + if (pp->name_pattern[0] != '\0') + { + /* Make a named tag. */ + char *name = substitute (lbp->buffer, + pp->name_pattern, &pp->regs); + if (name != NULL) + pfnote (name, TRUE, lbp->buffer, match, lineno, linecharno); + } + else + { + /* Make an unnamed tag. */ + pfnote ((char *)NULL, TRUE, + lbp->buffer, match, lineno, linecharno); + } + break; + } + } + } #endif /* ETAGS_REGEXPS */ return result; @@ -5826,7 +5873,7 @@ linebuffer_setlen (lbp, toksize) } /* Like malloc but get fatal error if memory is exhausted. */ -PTR +static PTR xmalloc (size) unsigned int size; { @@ -5836,7 +5883,7 @@ xmalloc (size) return result; } -PTR +static PTR xrealloc (ptr, size) char *ptr; unsigned int size; -- 2.20.1