-/* Tags file maker to go with GNU Emacs
- Copyright (C) 1984, 87, 88, 89, 93, 94, 95, 98, 99
+/* Tags file maker to go with GNU Emacs -*- coding: latin-1 -*-
+ Copyright (C) 1984, 87, 88, 89, 93, 94, 95, 98, 99, 2000, 2001
Free Software Foundation, Inc. and Ken Arnold
This file is not considered part of GNU Emacs.
* Fortran added by Jim Kleckner.
* Ed Pelegri-Llopart added C typedefs.
* Gnu Emacs TAGS format and modifications by RMS?
- * Sam Kendall added C++.
- * Francesco Potorti` reorganised C and C++ based on work by Joe Wells.
- * Regexp tags by Tom Tromey.
+ * 1989 Sam Kendall added C++.
+ * 1993 Francesco Potortì reorganised C and C++ based on work by Joe Wells.
+ * 1994 Regexp tags by Tom Tromey.
+ * 2001 Nested classes by Francesco Potortì based on work by Mykola Dzyuba.
*
- * Francesco Potorti` (pot@gnu.org) is the current maintainer.
- * Ansified by Martin Buchholz, 19991105.
+ * Francesco Potortì <pot@gnu.org> has maintained it since 1993.
*/
-char pot_etags_version[] = "@(#) pot revision number is 13.33";
+char pot_etags_version[] = "@(#) pot revision number is 14.15";
#define TRUE 1
#define FALSE 0
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE /* enables some compiler checks on GNU */
+#ifdef DEBUG
+# undef DEBUG
+# define DEBUG TRUE
+#else
+# define DEBUG FALSE
+# define NDEBUG /* disable assert */
#endif
-#ifndef DEBUG
-# define DEBUG FALSE
+
+#if defined(__STDC__) && (__STDC__ || defined(__SUNPRO_C))
+# define P_(proto) proto
+#else
+# define P_(proto) ()
#endif
#ifdef HAVE_CONFIG_H
# define LONG_OPTIONS /* accept long options */
#endif /* HAVE_CONFIG_H */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1 /* enables some compiler checks on GNU */
+#endif
+
+/* WIN32_NATIVE is for Xemacs.
+ MSDOS, WINDOWSNT, DOS_NT are for Emacs. */
+#ifdef WIN32_NATIVE
+# undef MSDOS
+# undef WINDOWSNT
+# define WINDOWSNT
+#endif /* WIN32_NATIVE */
+
#ifdef MSDOS
+# undef MSDOS
+# define MSDOS TRUE
# include <fcntl.h>
# include <sys/param.h>
# include <io.h>
# define DOS_NT
# include <sys/config.h>
# endif
+#else
+# define MSDOS FALSE
#endif /* MSDOS */
#ifdef WINDOWSNT
# include <stdlib.h>
# include <fcntl.h>
# include <string.h>
+# include <direct.h>
# include <io.h>
# define MAXPATHLEN _MAX_PATH
-# ifdef HAVE_CONFIG_H
-# undef HAVE_NTGUI
-# else
-# define DOS_NT
-# endif /* not HAVE_CONFIG_H */
+# undef HAVE_NTGUI
+# undef DOS_NT
+# define DOS_NT
# ifndef HAVE_GETCWD
# define HAVE_GETCWD
# endif /* undef HAVE_GETCWD */
-#endif /* WINDOWSNT */
-
-#if !defined (WINDOWSNT) && defined (STDC_HEADERS)
-#include <stdlib.h>
-#include <string.h>
-#endif
+#else /* !WINDOWSNT */
+# ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <string.h>
+# else
+ extern char *getenv ();
+# endif
+#endif /* !WINDOWSNT */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#else
-# ifdef HAVE_GETCWD
- extern char *getcwd ();
+# if defined (HAVE_GETCWD) && !defined (WINDOWSNT)
+ extern char *getcwd (char *buf, size_t size);
# endif
#endif /* HAVE_UNISTD_H */
#include <sys/types.h>
#include <sys/stat.h>
+#include <assert.h>
+#ifdef NDEBUG
+# undef assert /* some systems have a buggy assert.h */
+# define assert(x) ((void) 0)
+#endif
+
#if !defined (S_ISREG) && defined (S_IFREG)
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
# define BAD 1
#endif
-/* C extensions. */
-#define C_PLPL 0x00001 /* C++ */
-#define C_STAR 0x00003 /* C* */
-#define C_JAVA 0x00005 /* JAVA */
-#define YACC 0x10000 /* yacc file */
-
-#define streq(s,t) ((DEBUG && (s) == NULL && (t) == NULL \
- && (abort (), 1)) || !strcmp (s, t))
-#define strneq(s,t,n) ((DEBUG && (s) == NULL && (t) == NULL \
- && (abort (), 1)) || !strncmp (s, t, n))
-
-#define lowcase(c) tolower ((char)c)
+#define streq(s,t) (assert((s)!=NULL || (t)!=NULL), !strcmp (s, t))
+#define strneq(s,t,n) (assert((s)!=NULL || (t)!=NULL), !strncmp (s, t, n))
#define CHARS 256 /* 2^sizeof(char) */
-#define CHAR(x) ((unsigned int)x & (CHARS - 1))
+#define CHAR(x) ((unsigned int)(x) & (CHARS - 1))
#define iswhite(c) (_wht[CHAR(c)]) /* c is white */
#define notinname(c) (_nin[CHAR(c)]) /* c is not in a name */
#define begtoken(c) (_btk[CHAR(c)]) /* c can start token */
#define intoken(c) (_itk[CHAR(c)]) /* c can be in token */
#define endtoken(c) (_etk[CHAR(c)]) /* c ends tokens */
+#define ISALNUM(c) isalnum (CHAR(c))
+#define ISALPHA(c) isalpha (CHAR(c))
+#define ISDIGIT(c) isdigit (CHAR(c))
+#define ISLOWER(c) islower (CHAR(c))
+
+#define lowcase(c) tolower (CHAR(c))
+#define upcase(c) toupper (CHAR(c))
+
/*
* xnew, xrnew -- allocate, reallocate storage
*
* SYNOPSIS: Type *xnew (int n, Type);
- * Type *xrnew (OldPointer, int n, Type);
+ * void xrnew (OldPointer, int n, Type);
*/
-#ifdef chkmalloc
+#if DEBUG
# include "chkmalloc.h"
# define xnew(n,Type) ((Type *) trace_malloc (__FILE__, __LINE__, \
(n) * sizeof (Type)))
-# define xrnew(op,n,Type) ((Type *) trace_realloc (__FILE__, __LINE__, \
- (op), (n) * sizeof (Type)))
+# define xrnew(op,n,Type) ((op) = (Type *) trace_realloc (__FILE__, __LINE__, \
+ (char *) (op), (n) * sizeof (Type)))
#else
# define xnew(n,Type) ((Type *) xmalloc ((n) * sizeof (Type)))
-# define xrnew(op,n,Type) ((Type *) xrealloc ((op), (n) * sizeof (Type)))
+# define xrnew(op,n,Type) ((op) = (Type *) xrealloc ( \
+ (char *) (op), (n) * sizeof (Type)))
#endif
typedef int bool;
-typedef void Lang_function ();
+typedef void Lang_function P_((FILE *));
typedef struct
{
{
char *name;
Lang_function *function;
+ char **filenames;
char **suffixes;
char **interpreters;
} language;
-extern char *getenv ();
-
typedef struct node_st
{ /* sorting structure */
char *name; /* function or type name */
/* Many compilers barf on this:
Lang_function Ada_funcs;
so let's write it this way */
-void Ada_funcs (FILE *inf);
-void Asm_labels (FILE *inf);
-void C_entries (int c_ext, FILE *inf);
-void default_C_entries (FILE *inf);
-void plain_C_entries (FILE *inf);
-void Cjava_entries (FILE *inf);
-void Cobol_paragraphs (FILE *inf);
-void Cplusplus_entries (FILE *inf);
-void Cstar_entries (FILE *inf);
-void Erlang_functions (FILE *inf);
-void Fortran_functions (FILE *inf);
-void Yacc_entries (FILE *inf);
-void Lisp_functions (FILE *inf);
-void Pascal_functions (FILE *inf);
-void Perl_functions (FILE *inf);
-void Postscript_functions (FILE *inf);
-void Prolog_functions (FILE *inf);
-void Python_functions (FILE *inf);
-void Scheme_functions (FILE *inf);
-void TeX_functions (FILE *inf);
-void just_read_file (FILE *inf);
-
-compressor *get_compressor_from_suffix (char *file, char **extptr);
-language *get_language_from_name (char *name);
-language *get_language_from_interpreter (char *interpreter);
-language *get_language_from_suffix (char *file);
-int total_size_of_entries (register node *np);
-long readline (linebuffer *lbp, FILE *stream);
-long readline_internal (linebuffer *lbp, register FILE *stream);
-void get_tag (register char *bp);
+static void Ada_funcs P_((FILE *));
+static void Asm_labels P_((FILE *));
+static void C_entries P_((int c_ext, FILE *));
+static void default_C_entries P_((FILE *));
+static void plain_C_entries P_((FILE *));
+static void Cjava_entries P_((FILE *));
+static void Cobol_paragraphs P_((FILE *));
+static void Cplusplus_entries P_((FILE *));
+static void Cstar_entries P_((FILE *));
+static void Erlang_functions P_((FILE *));
+static void Fortran_functions P_((FILE *));
+static void Yacc_entries P_((FILE *));
+static void Lisp_functions P_((FILE *));
+static void Makefile_targets P_((FILE *));
+static void Pascal_functions P_((FILE *));
+static void Perl_functions P_((FILE *));
+static void Postscript_functions P_((FILE *));
+static void Prolog_functions P_((FILE *));
+static void Python_functions P_((FILE *));
+static void Scheme_functions P_((FILE *));
+static void TeX_commands P_((FILE *));
+static void Texinfo_nodes P_((FILE *));
+static void just_read_file P_((FILE *));
+
+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_((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 void get_tag P_((char *));
#ifdef ETAGS_REGEXPS
-void analyse_regex (char *regex_arg, bool ignore_case);
-void add_regex (char *regexp_pattern, bool ignore_case, language *lan);
-void free_patterns (void);
+static void analyse_regex P_((char *, bool));
+static void add_regex P_((char *, bool, language *));
+static void free_patterns P_((void));
#endif /* ETAGS_REGEXPS */
-void error (const char *s1, const char *s2);
-void suggest_asking_for_help (void);
-void fatal (char *s1, char *s2);
-void pfatal (char *s1);
-void add_node (node *np, node **cur_node_p);
-
-void init (void);
-void initbuffer (linebuffer *lbp);
-void find_entries (char *file, FILE *inf);
-void free_tree (register node *np);
-void pfnote (char *name, bool is_func, char *linestart, int linelen, int lno, long int cno);
-void new_pfnote (char *name, int namelen, bool is_func, char *linestart, int linelen, int lno, long int cno);
-void process_file (char *file);
-void put_entries (register node *np);
-void takeprec (void);
-
-char *concat (char *s1, char *s2, char *s3);
-char *skip_spaces (char *cp);
-char *skip_non_spaces (char *cp);
-char *savenstr (char *cp, int len);
-char *savestr (char *cp);
-char *etags_strchr (char *sp, char c);
-char *etags_strrchr (char *sp, char c);
-char *etags_getcwd (void);
-char *relative_filename (char *file, char *dir);
-char *absolute_filename (char *file, char *dir);
-char *absolute_dirname (char *file, char *dir);
-bool filename_is_absolute (char *fn);
-void canonicalize_filename (register char *fn);
-void grow_linebuffer (linebuffer *lbp, int toksize);
-long *xmalloc (unsigned int size);
-long *xrealloc (char *ptr, unsigned int size);
+static void error P_((const char *, const char *));
+static void suggest_asking_for_help P_((void));
+void fatal P_((char *, char *));
+static void pfatal P_((char *));
+static void add_node P_((node *, node **));
+
+static void init P_((void));
+static void initbuffer P_((linebuffer *));
+static void find_entries P_((char *, FILE *));
+static void free_tree P_((node *));
+static void pfnote P_((char *, bool, char *, int, int, long));
+static void new_pfnote P_((char *, int, bool, char *, int, int, long));
+static void process_file P_((char *));
+static void put_entries P_((node *));
+static void takeprec P_((void));
+
+static char *concat P_((char *, char *, char *));
+static char *skip_spaces P_((char *));
+static char *skip_non_spaces P_((char *));
+static char *savenstr P_((char *, int));
+static char *savestr P_((char *));
+static char *etags_strchr P_((const char *, int));
+static char *etags_strrchr P_((const char *, int));
+static char *etags_getcwd P_((void));
+static char *relative_filename P_((char *, char *));
+static char *absolute_filename P_((char *, char *));
+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));
+long *xmalloc P_((unsigned int));
+long *xrealloc P_((char *, unsigned int));
\f
char searchar = '/'; /* use /.../ searches */
node *head; /* the head of the binary tree of tags */
linebuffer lb; /* the current line */
-linebuffer token_name; /* used by C_entries as a temporary area */
-struct
-{
- long linepos;
- linebuffer lb; /* used by C_entries instead of lb */
-} lbs[2];
/* boolean "functions" (see init) */
bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS];
char
/* white chars */
- *white = " \f\t\n\r",
+ *white = " \f\t\n\r\v",
/* not in a name */
*nonam = " \f\t\n\r(=,[;",
/* token ending chars */
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_and_cplusplus; /* -T: create tags for C typedefs, level */
+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 */
};
/* Note that .c and .h can be considered C++, if the --c++ flag was
- given. That is why default_C_entries is called here. */
+ 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 [] =
{ "c", "h", NULL };
char *Cplusplus_suffixes [] =
- { "C", "H", "c++", "cc", "cpp", "cxx", "h++", "hh", "hpp", "hxx",
+ { "C", "c++", "cc", "cpp", "cxx", "H", "h++", "hh", "hpp", "hxx",
"M", /* Objective C++ */
"pdb", /* Postscript with C syntax */
NULL };
{ "F", "f", "f90", "for", NULL };
char *Lisp_suffixes [] =
- { "cl", "clisp", "el", "l", "lisp", "lsp", "ml", NULL };
+ { "cl", "clisp", "el", "l", "lisp", "LSP", "lsp", "ml", NULL };
+
+char *Makefile_filenames [] =
+ { "Makefile", "makefile", "GNUMakefile", "Makefile.in", "Makefile.am", NULL};
char *Pascal_suffixes [] =
{ "p", "pas", NULL };
{ "perl", "@PERL@", NULL };
char *plain_C_suffixes [] =
- { "pc", /* Pro*C file */
+ { "lm", /* Objective lex file */
"m", /* Objective C file */
- "lm", /* Objective lex file */
+ "pc", /* Pro*C file */
NULL };
char *Postscript_suffixes [] =
/* Can't do the `SCM' or `scm' prefix with a version number. */
char *Scheme_suffixes [] =
- { "SCM", "SM", "oak", "sch", "scheme", "scm", "sm", "ss", "t", NULL };
+ { "oak", "sch", "scheme", "SCM", "scm", "SM", "sm", "ss", "t", NULL };
char *TeX_suffixes [] =
- { "TeX", "bib", "clo", "cls", "ltx", "sty", "tex", NULL };
+ { "bib", "clo", "cls", "ltx", "sty", "TeX", "tex", NULL };
+
+char *Texinfo_suffixes [] =
+ { "texi", "texinfo", "txi", NULL };
char *Yacc_suffixes [] =
- { "y", "ym", "yy", "yxx", "y++", NULL }; /* .ym is Objective yacc file */
+ { "y", "y++", "ym", "yxx", "yy", NULL }; /* .ym is Objective yacc file */
/*
* Table of languages.
language lang_names [] =
{
- { "ada", Ada_funcs, Ada_suffixes, NULL },
- { "asm", Asm_labels, Asm_suffixes, NULL },
- { "c", default_C_entries, default_C_suffixes, NULL },
- { "c++", Cplusplus_entries, Cplusplus_suffixes, NULL },
- { "c*", Cstar_entries, Cstar_suffixes, NULL },
- { "cobol", Cobol_paragraphs, Cobol_suffixes, NULL },
- { "erlang", Erlang_functions, Erlang_suffixes, NULL },
- { "fortran", Fortran_functions, Fortran_suffixes, NULL },
- { "java", Cjava_entries, Cjava_suffixes, NULL },
- { "lisp", Lisp_functions, Lisp_suffixes, NULL },
- { "pascal", Pascal_functions, Pascal_suffixes, NULL },
- { "perl", Perl_functions, Perl_suffixes, Perl_interpreters },
- { "postscript", Postscript_functions, Postscript_suffixes, NULL },
- { "proc", plain_C_entries, plain_C_suffixes, NULL },
- { "prolog", Prolog_functions, Prolog_suffixes, NULL },
- { "python", Python_functions, Python_suffixes, NULL },
- { "scheme", Scheme_functions, Scheme_suffixes, NULL },
- { "tex", TeX_functions, TeX_suffixes, NULL },
- { "yacc", Yacc_entries, Yacc_suffixes, NULL },
+ { "ada", Ada_funcs, NULL, Ada_suffixes, NULL },
+ { "asm", Asm_labels, NULL, Asm_suffixes, NULL },
+ { "c", default_C_entries, NULL, default_C_suffixes, NULL },
+ { "c++", Cplusplus_entries, NULL, Cplusplus_suffixes, NULL },
+ { "c*", Cstar_entries, NULL, Cstar_suffixes, NULL },
+ { "cobol", Cobol_paragraphs, NULL, Cobol_suffixes, NULL },
+ { "erlang", Erlang_functions, NULL, Erlang_suffixes, NULL },
+ { "fortran", Fortran_functions, NULL, Fortran_suffixes, NULL },
+ { "java", Cjava_entries, NULL, Cjava_suffixes, NULL },
+ { "lisp", Lisp_functions, NULL, Lisp_suffixes, NULL },
+ { "makefile", Makefile_targets, Makefile_filenames, NULL, NULL },
+ { "pascal", Pascal_functions, NULL, Pascal_suffixes, NULL },
+ { "perl", Perl_functions, NULL, Perl_suffixes, Perl_interpreters },
+ { "postscript", Postscript_functions, NULL, Postscript_suffixes, NULL },
+ { "proc", plain_C_entries, NULL, plain_C_suffixes, NULL },
+ { "prolog", Prolog_functions, NULL, Prolog_suffixes, NULL },
+ { "python", Python_functions, NULL, Python_suffixes, NULL },
+ { "scheme", Scheme_functions, NULL, Scheme_suffixes, NULL },
+ { "tex", TeX_commands, NULL, TeX_suffixes, NULL },
+ { "texinfo", Texinfo_nodes, NULL, Texinfo_suffixes, NULL },
+ { "yacc", Yacc_entries, NULL, Yacc_suffixes, NULL },
{ "auto", NULL }, /* default guessing scheme */
{ "none", just_read_file }, /* regexp matching only */
{ NULL, NULL } /* end of list */
};
+
\f
static void
print_language_names ()
{
language *lang;
- char **ext;
+ char **name, **ext;
puts ("\nThese are the currently supported languages, along with the\n\
-default file name suffixes:");
+default file names and dot suffixes:");
for (lang = lang_names; lang->name != NULL; lang++)
{
- printf ("\t%s\t", lang->name);
+ printf (" %-*s", 10, lang->name);
+ if (lang->filenames != NULL)
+ for (name = lang->filenames; *name != NULL; name++)
+ printf (" %s", *name);
if (lang->suffixes != NULL)
for (ext = lang->suffixes; *ext != NULL; ext++)
printf (" .%s", *ext);
the first line of the file is read for a sharp-bang (#!) sequence\n\
followed by the name of an interpreter. If no such sequence is found,\n\
Fortran is tried first; if no tags are found, C is tried next.\n\
+When parsing any C file, a \"class\" keyword switches to C++.\n\
Compressed files are supported using gzip and bzip2.");
}
-#ifdef XEMACS
-# define EMACS_NAME "XEmacs"
-#else
+#ifndef EMACS_NAME
# define EMACS_NAME "GNU Emacs"
#endif
-
#ifndef VERSION
-# define VERSION "20"
+# define VERSION "21"
#endif
static void
print_version ()
{
- printf ("%s (" EMACS_NAME " %s)\n", (CTAGS) ? "ctags" : "etags", VERSION);
+ printf ("%s (%s %s)\n", (CTAGS) ? "ctags" : "etags", EMACS_NAME, VERSION);
puts ("Copyright (C) 1999 Free Software Foundation, Inc. and Ken Arnold");
puts ("This program is distributed under the same terms as Emacs");
Write the search commands for the tag entries using '?', the\n\
backward-search command instead of '/', the forward-search command.");
+ /* This option is mostly obsolete, because etags can now automatically
+ detect C++. Retained for backward compatibility and for debugging and
+ experimentation. In principle, we could want to tag as C++ even
+ before any "class" keyword.
puts ("-C, --c++\n\
Treat files whose name suffix defaults to C language as C++ files.");
+ */
puts ("--declarations\n\
In C and derived languages, create tags for function declarations,");
#include <rmsdef.h>
#include <descrip.h>
#define OUTSIZE MAX_FILE_SPEC_LEN
-short
+static short
fn_exp (out, in)
vspec *out;
char *in;
v1.01 nmm 19-Aug-85 gfnames - return in successive calls the
name of each file specified by the provided arg expanding wildcards.
*/
-char *
+static char *
gfnames (arg, p_error)
char *arg;
bool *p_error;
/*
* If etags, always find typedefs and structure tags. Why not?
- * Also default is to find macro constants, enum constants and
+ * Also default to find macro constants, enum constants and
* global variables.
*/
if (!CTAGS)
{
- typedefs = typedefs_and_cplusplus = constantypedefs = TRUE;
+ typedefs = typedefs_or_cplusplus = constantypedefs = TRUE;
globals = TRUE;
+ declarations = FALSE;
members = FALSE;
}
break;
case 'l':
{
- language *lang = get_language_from_name (optarg);
+ language *lang = get_language_from_langname (optarg);
if (lang != NULL)
{
argbuffer[current_arg].lang = lang;
typedefs = TRUE;
break;
case 'T':
- typedefs = typedefs_and_cplusplus = TRUE;
+ typedefs = typedefs_or_cplusplus = TRUE;
break;
#if (!CTAGS)
/* Etags options */
init (); /* set up boolean "functions" */
initbuffer (&lb);
- initbuffer (&token_name);
- initbuffer (&lbs[0].lb);
- initbuffer (&lbs[1].lb);
initbuffer (&filename_lb);
if (!CTAGS)
* return a pointer into FILE where the compressor-specific
* extension begins. If no compressor is found, NULL is returned
* and EXTPTR is not significant.
- * Idea by Vladimir Alexiev <vladimir@cs.ualberta.ca>
+ * Idea by Vladimir Alexiev <vladimir@cs.ualberta.ca> (1998)
*/
-compressor *
+static compressor *
get_compressor_from_suffix (file, extptr)
char *file;
char **extptr;
for (compr = compressors; compr->suffix != NULL; compr++)
if (streq (compr->suffix, suffix))
return compr;
-#ifndef MSDOS
- break;
-#endif
+ if (!MSDOS)
+ break; /* do it only once: not really a loop */
if (extptr != NULL)
*extptr = ++suffix;
} while (*suffix != '\0');
/*
* Return a language given the name.
*/
-language *
-get_language_from_name (name)
+static language *
+get_language_from_langname (name)
char *name;
{
language *lang;
/*
* Return a language given the interpreter name.
*/
-language *
+static language *
get_language_from_interpreter (interpreter)
char *interpreter;
{
/*
* Return a language given the file name.
*/
-language *
-get_language_from_suffix (file)
+static language *
+get_language_from_filename (file)
char *file;
{
language *lang;
- char **ext, *suffix;
+ char **name, **ext, *suffix;
+ /* Try whole file name first. */
+ for (lang = lang_names; lang->name != NULL; lang++)
+ if (lang->filenames != NULL)
+ for (name = lang->filenames; *name != NULL; name++)
+ if (streq (*name, file))
+ return lang;
+
+ /* If not found, try suffix after last dot. */
suffix = etags_strrchr (file, '.');
if (suffix == NULL)
return NULL;
/*
* This routine is called on each file argument.
*/
-void
+static void
process_file (file)
char *file;
{
compressed_name = concat (file, ".", compr->suffix);
if (stat (compressed_name, &stat_buf) != 0)
{
-#ifdef MSDOS
- char *suf = compressed_name + strlen (file);
- size_t suflen = strlen (compr->suffix) + 1;
- for ( ; suf[1]; suf++, suflen--)
+ if (MSDOS)
{
- memmove (suf, suf + 1, suflen);
- if (stat (compressed_name, &stat_buf) == 0)
+ char *suf = compressed_name + strlen (file);
+ size_t suflen = strlen (compr->suffix) + 1;
+ for ( ; suf[1]; suf++, suflen--)
{
- real_name = compressed_name;
- break;
+ memmove (suf, suf + 1, suflen);
+ if (stat (compressed_name, &stat_buf) == 0)
+ {
+ real_name = compressed_name;
+ break;
+ }
}
- }
- if (real_name != NULL)
- break;
-#endif
+ if (real_name != NULL)
+ break;
+ } /* MSDOS */
free (compressed_name);
compressed_name = NULL;
}
if (real_name == compressed_name)
{
char *cmd = concat (compr->command, " ", real_name);
- inf = popen (cmd, "r");
+ inf = (FILE *) popen (cmd, "r");
free (cmd);
}
else
* subscripted by the chars in "white" are set to TRUE. Thus "_wht"
* of a char is TRUE if it is the string "white", else FALSE.
*/
-void
+static void
init ()
{
register char *sp;
iswhite(i) = notinname(i) = begtoken(i) = intoken(i) = endtoken(i) = FALSE;
for (sp = white; *sp != '\0'; sp++) iswhite (*sp) = TRUE;
for (sp = nonam; *sp != '\0'; sp++) notinname (*sp) = TRUE;
- for (sp = begtk; *sp != '\0'; sp++) begtoken (*sp) = TRUE;
- for (sp = midtk; *sp != '\0'; sp++) intoken (*sp) = TRUE;
- for (sp = endtk; *sp != '\0'; sp++) endtoken (*sp) = TRUE;
- iswhite('\0') = iswhite('\n');
notinname('\0') = notinname('\n');
+ for (sp = begtk; *sp != '\0'; sp++) begtoken (*sp) = TRUE;
begtoken('\0') = begtoken('\n');
+ for (sp = midtk; *sp != '\0'; sp++) intoken (*sp) = TRUE;
intoken('\0') = intoken('\n');
+ for (sp = endtk; *sp != '\0'; sp++) endtoken (*sp) = TRUE;
endtoken('\0') = endtoken('\n');
}
*/
node *last_node = NULL;
-void
+static void
find_entries (file, inf)
char *file;
FILE *inf;
}
/* Try to guess the language given the file name. */
- lang = get_language_from_suffix (file);
+ lang = get_language_from_filename (file);
if (lang != NULL && lang->function != NULL)
{
curlang = lang;
/* Try Fortran. */
old_last_node = last_node;
- curlang = get_language_from_name ("fortran");
+ curlang = get_language_from_langname ("fortran");
Fortran_functions (inf);
/* No Fortran entries found. Try C. */
/* We do not tag if rewind fails.
Only the file name will be recorded in the tags file. */
rewind (inf);
- curlang = get_language_from_name (cplusplus ? "c++" : "c");
+ curlang = get_language_from_langname (cplusplus ? "c++" : "c");
default_C_entries (inf);
}
return;
}
+
\f
/* Record a tag. */
-void
+static void
pfnote (name, is_func, linestart, linelen, lno, cno)
char *name; /* tag name, or NULL if unnamed */
bool is_func; /* tag is a function */
add_node (np, &head);
}
-/* Date: Wed, 22 Jan 1997 02:56:31 -0500 [last amended 18 Sep 1997]
- * From: Sam Kendall <kendall@mv.mv.com>
- * Subject: Proposal for firming up the TAGS format specification
- * To: F.Potorti@cnuce.cnr.it
+/*
+ * TAGS format specification
+ * Idea by Sam Kendall <kendall@mv.mv.com> (1997)
*
* pfnote should emit the optimized form [unnamed tag] only if:
* 1. name does not contain any of the characters " \t\r\n(),;";
* `nonam'.
*/
#define traditional_tag_style TRUE
-void
+static void
new_pfnote (name, namelen, is_func, linestart, linelen, lno, cno)
char *name; /* tag name, or NULL if unnamed */
int namelen; /* tag length */
* free_tree ()
* recurse on left children, iterate on right children.
*/
-void
+static void
free_tree (np)
register node *np;
{
* add_node is the only function allowed to add nodes, so it can
* maintain state.
*/
-void
+static void
add_node (np, cur_node_p)
node *np, **cur_node_p;
{
add_node (np, dif < 0 ? &cur_node->left : &cur_node->right);
}
}
+
\f
-void
+static void
put_entries (np)
register node *np;
{
* is irrelevant with the new tags.el, but is still supplied for
* backward compatibility.
*/
-int
+static int
total_size_of_entries (np)
register node *np;
{
return total;
}
+
\f
+/* C extensions. */
+#define C_EXT 0x00fff /* C extensions */
+#define C_PLAIN 0x00000 /* C */
+#define C_PLPL 0x00001 /* C++ */
+#define C_STAR 0x00003 /* C* */
+#define C_JAVA 0x00005 /* JAVA */
+#define C_AUTO 0x01000 /* C, but switch to C++ if `class' is met */
+#define YACC 0x10000 /* yacc file */
+
/*
* The C symbol tables.
*/
st_C_ignore,
st_C_javastruct,
st_C_operator,
+ st_C_class,
st_C_struct, st_C_extern, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
};
+static unsigned int hash P_((const char *, unsigned int));
+static struct C_stab_entry * in_word_set P_((const char *, unsigned int));
+static enum sym_type C_symtype P_((char *, int, int));
+
/* Feed stuff between (but not including) %[ and %] lines to:
gperf -c -k 1,3 -o -p -r -t
+ then put a `static' keyword in front of the in_word_set function.
%[
struct C_stab_entry { char *name; int c_ext; enum sym_type type; }
%%
extends, C_JAVA, st_C_javastruct
implements, C_JAVA, st_C_javastruct
interface, C_JAVA, st_C_struct
-class, C_PLPL, st_C_struct
+class, 0, st_C_class
namespace, C_PLPL, st_C_struct
domain, C_STAR, st_C_struct
union, 0, st_C_struct
#EXFUN, 0, st_C_gnumacro
#DEFVAR_, 0, st_C_gnumacro
%]
-and replace lines between %< and %> with its output. */
+and replace lines between %< and %> with its output,
+then make in_word_set static. */
/*%<*/
/* C code produced by gperf version 2.7.1 (19981006 egcs) */
/* Command-line: gperf -c -k 1,3 -o -p -r -t */
#define MIN_WORD_LENGTH 2
#define MAX_WORD_LENGTH 15
#define MIN_HASH_VALUE 13
-#define MAX_HASH_VALUE 123
-/* maximum key range = 111, duplicates = 0 */
+#define MAX_HASH_VALUE 121
+/* maximum key range = 109, duplicates = 0 */
#ifdef __GNUC__
__inline
{
static unsigned char asso_values[] =
{
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 3, 124, 124, 124, 43, 6,
- 11, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 11, 124, 124, 58, 7, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 57, 7, 42,
- 4, 14, 52, 0, 124, 53, 124, 124, 29, 11,
- 6, 35, 32, 124, 29, 34, 59, 58, 51, 24,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
- 124, 124, 124, 124, 124, 124
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 57, 122, 122, 122, 55, 6,
+ 60, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 51, 122, 122, 10, 2, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 2, 52, 59,
+ 49, 38, 56, 41, 122, 22, 122, 122, 9, 32,
+ 33, 60, 26, 122, 1, 28, 46, 59, 44, 51,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122, 122, 122, 122, 122,
+ 122, 122, 122, 122, 122, 122
};
register int hval = len;
{
{""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
{""}, {""}, {""}, {""},
- {"@end", 0, st_C_objend},
- {""}, {""}, {""}, {""},
{"ENTRY", 0, st_C_gnumacro},
- {"@interface", 0, st_C_objprot},
- {""},
- {"domain", C_STAR, st_C_struct},
+ {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
{""},
- {"PSEUDO", 0, st_C_gnumacro},
- {""}, {""},
- {"namespace", C_PLPL, st_C_struct},
+ {"if", 0, st_C_ignore},
{""}, {""},
- {"@implementation",0, st_C_objimpl},
+ {"SYSCALL", 0, st_C_gnumacro},
+ {""}, {""}, {""}, {""}, {""}, {""}, {""},
+ {"struct", 0, st_C_struct},
+ {"static", 0, st_C_typespec},
{""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
{"long", 0, st_C_typespec},
- {"signed", 0, st_C_typespec},
- {"@protocol", 0, st_C_objprot},
- {""}, {""}, {""}, {""},
- {"bool", C_PLPL, st_C_typespec},
- {""}, {""}, {""}, {""}, {""}, {""},
- {"const", 0, st_C_typespec},
- {"explicit", C_PLPL, st_C_typespec},
- {"if", 0, st_C_ignore},
- {""},
- {"operator", C_PLPL, st_C_operator},
- {""},
- {"DEFUN", 0, st_C_gnumacro},
- {""}, {""},
- {"define", 0, st_C_define},
{""}, {""}, {""}, {""}, {""},
- {"double", 0, st_C_typespec},
- {"struct", 0, st_C_struct},
- {""}, {""}, {""}, {""},
- {"short", 0, st_C_typespec},
+ {"auto", 0, st_C_typespec},
+ {"return", 0, st_C_ignore},
+ {"import", C_JAVA, st_C_ignore},
{""},
- {"enum", 0, st_C_enum},
- {"mutable", C_PLPL, st_C_typespec},
+ {"switch", 0, st_C_ignore},
{""},
- {"extern", 0, st_C_extern},
- {"extends", C_JAVA, st_C_javastruct},
- {"package", C_JAVA, st_C_ignore},
- {"while", 0, st_C_ignore},
+ {"implements", C_JAVA, st_C_javastruct},
{""},
{"for", 0, st_C_ignore},
- {""}, {""}, {""},
{"volatile", 0, st_C_typespec},
+ {""},
+ {"PSEUDO", 0, st_C_gnumacro},
+ {""},
+ {"char", 0, st_C_typespec},
+ {"class", 0, st_C_class},
+ {"@protocol", 0, st_C_objprot},
{""}, {""},
- {"import", C_JAVA, st_C_ignore},
- {"float", 0, st_C_typespec},
- {"switch", 0, st_C_ignore},
- {"return", 0, st_C_ignore},
- {"implements", C_JAVA, st_C_javastruct},
+ {"void", 0, st_C_typespec},
+ {"int", 0, st_C_typespec},
+ {"explicit", C_PLPL, st_C_typespec},
{""},
- {"static", 0, st_C_typespec},
+ {"namespace", C_PLPL, st_C_struct},
+ {"signed", 0, st_C_typespec},
+ {""},
+ {"interface", C_JAVA, st_C_struct},
+ {"while", 0, st_C_ignore},
{"typedef", 0, st_C_typedef},
{"typename", C_PLPL, st_C_typespec},
- {"unsigned", 0, st_C_typespec},
- {""}, {""},
- {"char", 0, st_C_typespec},
- {"class", C_PLPL, st_C_struct},
{""}, {""}, {""},
- {"void", 0, st_C_typespec},
- {""}, {""},
{"friend", C_PLPL, st_C_ignore},
- {""}, {""}, {""},
- {"int", 0, st_C_typespec},
+ {"mutable", C_PLPL, st_C_typespec},
{"union", 0, st_C_struct},
- {""}, {""}, {""},
- {"auto", 0, st_C_typespec},
- {"interface", C_JAVA, st_C_struct},
+ {"domain", C_STAR, st_C_struct},
+ {""}, {""},
+ {"extern", 0, st_C_extern},
+ {"extends", C_JAVA, st_C_javastruct},
+ {"package", C_JAVA, st_C_ignore},
+ {"short", 0, st_C_typespec},
+ {"@end", 0, st_C_objend},
+ {"unsigned", 0, st_C_typespec},
{""},
- {"SYSCALL", 0, st_C_gnumacro}
+ {"const", 0, st_C_typespec},
+ {""}, {""},
+ {"@interface", 0, st_C_objprot},
+ {"enum", 0, st_C_enum},
+ {""}, {""},
+ {"@implementation",0, st_C_objimpl},
+ {""},
+ {"operator", C_PLPL, st_C_operator},
+ {""}, {""}, {""}, {""},
+ {"define", 0, st_C_define},
+ {""}, {""},
+ {"double", 0, st_C_typespec},
+ {""},
+ {"bool", C_PLPL, st_C_typespec},
+ {""}, {""}, {""},
+ {"DEFUN", 0, st_C_gnumacro},
+ {"float", 0, st_C_typespec}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
return st_none;
return se->type;
}
+
\f
- /*
- * C functions and variables are recognized using a simple
- * finite automaton. fvdef is its state variable.
- */
+/*
+ * C functions and variables are recognized using a simple
+ * finite automaton. fvdef is its state variable.
+ */
enum
{
fvnone, /* nothing seen */
+ fdefunkey, /* Emacs DEFUN keyword seen */
+ fdefunname, /* Emacs DEFUN name seen */
foperator, /* func: operator keyword seen (cplpl) */
fvnameseen, /* function or variable name seen */
fstartlist, /* func: just after open parenthesis */
bool fvextern; /* func or var: extern keyword seen; */
- /*
- * typedefs are recognized using a simple finite automaton.
- * typdef is its state variable.
- */
+/*
+ * typedefs are recognized using a simple finite automaton.
+ * typdef is its state variable.
+ */
enum
{
tnone, /* nothing seen */
tignore /* junk after typedef tag */
} typdef;
-
- /*
- * struct-like structures (enum, struct and union) are recognized
- * using another simple finite automaton. `structdef' is its state
- * variable.
- */
+/*
+ * struct-like structures (enum, struct and union) are recognized
+ * using another simple finite automaton. `structdef' is its state
+ * variable.
+ */
enum
{
- snone, /* nothing seen yet */
+ snone, /* nothing seen yet,
+ or in struct body if cblev > 0 */
skeyseen, /* struct-like keyword seen */
stagseen, /* struct-like tag seen */
- scolonseen, /* colon seen after struct-like tag */
- sinbody /* in struct body: recognize member func defs*/
+ sintemplate, /* inside template (ignore) */
+ scolonseen /* colon seen after struct-like tag */
} structdef;
/*
- * When structdef is stagseen, scolonseen, or sinbody, structtag is the
- * struct tag, and structtype is the type of the preceding struct-like
- * keyword.
- */
-char *structtag = "<uninited>";
-enum sym_type structtype;
-
-/*
* When objdef is different from onone, objtag is the name of the class.
*/
char *objtag = "<uninited>";
/*
* State machine for Objective C protocols and implementations.
- * Tom R.Hageman <tom@basil.icce.rug.nl>
+ * Idea by Tom R.Hageman <tom@basil.icce.rug.nl> (1995)
*/
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.
*/
-typedef struct
+struct tok
{
bool valid;
- char *str;
bool named;
- int linelen;
+ int offset;
+ int length;
int lineno;
long linepos;
- char *buffer;
-} token;
-
-token tok; /* latest token read */
+ char *line;
+} token; /* latest token read */
+linebuffer token_name; /* its name */
/*
- * Set this to TRUE, and the next token considered is called a function.
- * Used only for GNU emacs's function-defining macros.
+ * Variables and functions for dealing with nested structures.
+ * Idea by Mykola Dzyuba <mdzyuba@yahoo.com> (2001)
*/
-bool next_token_is_func;
+static void pushclass_above P_((int, char *, int));
+static void popclass_above P_((int));
+static void write_classname P_((linebuffer *, char *qualifier));
+
+struct {
+ char **cname; /* nested class names */
+ int *cblev; /* nested class curly brace level */
+ int nl; /* class nesting level (elements used) */
+ int size; /* length of the array */
+} cstack; /* stack for nested declaration tags */
+/* Current struct nesting depth (namespace, class, struct, union, enum). */
+#define nestlev (cstack.nl)
+/* After struct keyword or in struct body, not inside an nested function. */
+#define instruct (structdef == snone && nestlev > 0 \
+ && cblev == cstack.cblev[nestlev-1] + 1)
-/*
- * TRUE in the rules part of a yacc file, FALSE outside (parse as C).
- */
-bool yacc_rules;
+static void
+pushclass_above (cblev, str, len)
+ int cblev;
+ char *str;
+ int len;
+{
+ int nl;
-/*
- * methodlen is the length of the method name stored in token_name.
- */
-int methodlen;
+ popclass_above (cblev);
+ nl = cstack.nl;
+ if (nl >= cstack.size)
+ {
+ int size = cstack.size *= 2;
+ xrnew (cstack.cname, size, char *);
+ xrnew (cstack.cblev, size, int);
+ }
+ assert (nl == 0 || cstack.cblev[nl-1] < cblev);
+ cstack.cname[nl] = (str == NULL) ? NULL : savenstr (str, len);
+ cstack.cblev[nl] = cblev;
+ cstack.nl = nl + 1;
+}
+
+static void
+popclass_above (cblev)
+ int cblev;
+{
+ int nl;
+
+ for (nl = cstack.nl - 1;
+ nl >= 0 && cstack.cblev[nl] >= cblev;
+ nl--)
+ {
+ if (cstack.cname[nl] != NULL)
+ free (cstack.cname[nl]);
+ cstack.nl = nl;
+ }
+}
+
+static void
+write_classname (cn, qualifier)
+ linebuffer *cn;
+ char *qualifier;
+{
+ int i, len;
+ int qlen = strlen (qualifier);
+
+ if (cstack.nl == 0 || cstack.cname[0] == NULL)
+ {
+ len = 0;
+ cn->len = 0;
+ cn->buffer[0] = '\0';
+ }
+ else
+ {
+ len = strlen (cstack.cname[0]);
+ linebuffer_setlen (cn, len);
+ strcpy (cn->buffer, cstack.cname[0]);
+ }
+ for (i = 1; i < cstack.nl; i++)
+ {
+ char *s;
+ int slen;
+
+ s = cstack.cname[i];
+ if (s == NULL)
+ continue;
+ slen = strlen (s);
+ len += slen + qlen;
+ linebuffer_setlen (cn, len);
+ strncat (cn->buffer, qualifier, qlen);
+ strncat (cn->buffer, s, slen);
+ }
+}
+
+\f
+static bool consider_token P_((char *, int, int, int *, int, int, bool *));
+static void make_C_tag P_((bool));
/*
* consider_token ()
* is a struct/union/enum tag, or #define, or an enum constant.
*
* *IS_FUNC gets TRUE iff the token is a function or #define macro
- * with args. C_EXT is which language we are looking at.
+ * with args. C_EXTP points to which language we are looking at.
*
* Globals
* fvdef IN OUT
* definedef IN OUT
* typdef IN OUT
* objdef IN OUT
- * next_token_is_func IN OUT
*/
static bool
-consider_token (str, len, c, c_ext, cblev, parlev, is_func_or_var)
+consider_token (str, len, c, c_extp, cblev, parlev, is_func_or_var)
register char *str; /* IN: token pointer */
register int len; /* IN: token length */
- register char c; /* IN: first char after the token */
- int c_ext; /* IN: C extensions mask */
+ register int c; /* IN: first char after the token */
+ int *c_extp; /* IN, OUT: C extensions mask */
int cblev; /* IN: curly brace level */
int parlev; /* IN: parenthesis level */
bool *is_func_or_var; /* OUT: function or variable found */
{
- enum sym_type toktype = C_symtype (str, len, c_ext);
+ /* When structdef is stagseen, scolonseen, or snone with cblev > 0,
+ structtype is the type of the preceding struct-like keyword, and
+ structcblev is the curly brace level where it has been seen. */
+ static enum sym_type structtype;
+ static int structcblev;
+ static enum sym_type toktype;
+
+
+ toktype = C_symtype (str, len, *c_extp);
/*
* Advance the definedef state machine.
{
case dnone:
/* We're not on a preprocessor line. */
+ if (toktype == st_C_gnumacro)
+ {
+ fvdef = fdefunkey;
+ return FALSE;
+ }
break;
case dsharpseen:
if (toktype == st_C_define)
{
case st_none:
case st_C_typespec:
+ case st_C_class:
case st_C_struct:
case st_C_enum:
typdef = ttypeseen;
break;
}
- /* Do not return here, so the structdef stuff has a chance. */
+ break;
+ case ttypeseen:
+ if (structdef == snone && fvdef == fvnone)
+ {
+ fvdef = fvnameseen;
+ return TRUE;
+ }
break;
case tend:
switch (toktype)
{
case st_C_typespec:
+ case st_C_class:
case st_C_struct:
case st_C_enum:
return FALSE;
}
/*
- * This structdef business is currently only invoked when cblev==0.
- * It should be recursively invoked whatever the curly brace level,
- * and a stack of states kept, to allow for definitions of structs
- * within structs.
- *
* This structdef business is NOT invoked when we are ctags and the
* file is plain C. This is because a struct tag may have the same
* name as another tag, and this loses with ctags.
if (structdef == stagseen)
structdef = scolonseen;
return FALSE;
+ case st_C_class:
+ if (cblev == 0
+ && (*c_extp & C_AUTO) /* automatic detection of C++ language */
+ && definedef == dnone && structdef == snone
+ && typdef == tnone && fvdef == fvnone)
+ *c_extp = (*c_extp | C_PLPL) & ~C_AUTO;
+ /* FALLTHRU */
case st_C_struct:
case st_C_enum:
- if (typdef == tkeyseen
- || (typedefs_and_cplusplus && cblev == 0 && structdef == snone))
+ if (parlev == 0
+ && fvdef != vignore
+ && (typdef == tkeyseen
+ || (typedefs_or_cplusplus && structdef == snone)))
{
structdef = skeyseen;
structtype = toktype;
+ structcblev = cblev;
}
return FALSE;
}
if (structdef == skeyseen)
{
- /* Save the tag for struct/union/class, for functions and variables
- that may be defined inside. */
- if (structtype == st_C_struct)
- structtag = savenstr (str, len);
- else
- structtag = "<enum>";
structdef = stagseen;
return TRUE;
}
if (typdef != tnone)
definedef = dnone;
- /* Detect GNU macros.
-
- Writers of emacs code are recommended to put the
- first two args of a DEFUN on the same line.
-
- The DEFUN macro, used in emacs C source code, has a first arg
- that is a string (the lisp function name), and a second arg that
- is a C function name. Since etags skips strings, the second arg
- is tagged. This is unfortunate, as it would be better to tag the
- first arg. The simplest way to deal with this problem would be
- to name the tag with a name built from the function name, by
- removing the initial 'F' character and substituting '-' for '_'.
- Anyway, this assumes that the conventions of naming lisp
- functions will never change. Currently, this method is not
- implemented. */
- if (definedef == dnone && toktype == st_C_gnumacro)
- {
- next_token_is_func = TRUE;
- return FALSE;
- }
- if (next_token_is_func)
- {
- next_token_is_func = FALSE;
- fvdef = fignore;
- *is_func_or_var = TRUE;
- return TRUE;
- }
-
/* Detect Objective C constructs. */
switch (objdef)
{
if (parlev == 0)
{
objdef = omethodtag;
- methodlen = len;
- grow_linebuffer (&token_name, methodlen + 1);
+ linebuffer_setlen (&token_name, len);
strncpy (token_name.buffer, str, len);
- token_name.buffer[methodlen] = '\0';
- token_name.len = methodlen;
+ token_name.buffer[len] = '\0';
return TRUE;
}
return FALSE;
if (parlev == 0)
{
objdef = omethodtag;
- methodlen += len;
- grow_linebuffer (&token_name, methodlen + 1);
+ linebuffer_setlen (&token_name, token_name.len + len);
strncat (token_name.buffer, str, len);
- token_name.len = methodlen;
return TRUE;
}
return FALSE;
*is_func_or_var = TRUE;
return TRUE;
case st_none:
- if ((c_ext & C_PLPL) && strneq (str+len-10, "::operator", 10))
+ if (constantypedefs
+ && structdef == snone
+ && structtype == st_C_enum && cblev > structcblev)
+ return TRUE; /* enum constant */
+ switch (fvdef)
{
- fvdef = foperator;
+ case fdefunkey:
+ if (cblev > 0)
+ break;
+ fvdef = fdefunname; /* GNU macro */
*is_func_or_var = TRUE;
return TRUE;
- }
- if (constantypedefs && structdef == sinbody && structtype == st_C_enum)
- return TRUE;
- if (fvdef == fvnone)
- {
+ case fvnone:
+ if ((strneq (str, "asm", 3) && endtoken (str[3]))
+ || (strneq (str, "__asm__", 7) && endtoken (str[7])))
+ {
+ fvdef = vignore;
+ return FALSE;
+ }
+ if ((*c_extp & C_PLPL) && strneq (str+len-10, "::operator", 10))
+ {
+ fvdef = foperator;
+ *is_func_or_var = TRUE;
+ return TRUE;
+ }
+ if (cblev > 0 && !instruct)
+ break;
fvdef = fvnameseen; /* function or variable */
*is_func_or_var = TRUE;
return TRUE;
return FALSE;
}
+\f
/*
- * C_entries ()
- * This routine finds functions, variables, typedefs,
- * #define's, enum constants and struct/union/enum definitions in
- * C syntax and adds them to the list.
+ * C_entries often keeps pointers to tokens or lines which are older than
+ * the line currently read. By keeping two line buffers, and switching
+ * them at end of line, it is possible to use those pointers.
*/
+struct
+{
+ long linepos;
+ linebuffer lb;
+} lbs[2];
+
#define current_lb_is_new (newndx == curndx)
#define switch_line_buffers() (curndx = 1 - curndx)
#define curlb (lbs[curndx].lb)
-#define othlb (lbs[1-curndx].lb)
#define newlb (lbs[newndx].lb)
#define curlinepos (lbs[curndx].linepos)
-#define othlinepos (lbs[1-curndx].linepos)
#define newlinepos (lbs[newndx].linepos)
#define CNL_SAVE_DEFINEDEF() \
#define CNL() \
do { \
CNL_SAVE_DEFINEDEF(); \
- if (savetok.valid) \
+ if (savetoken.valid) \
{ \
- tok = savetok; \
- savetok.valid = FALSE; \
+ token = savetoken; \
+ savetoken.valid = FALSE; \
} \
definedef = dnone; \
} while (0)
make_C_tag (isfun)
bool isfun;
{
- /* This function should never be called when tok.valid is FALSE, but
+ /* This function should never be called when token.valid is FALSE, but
we must protect against invalid input or internal errors. */
- if (tok.valid)
+ if (DEBUG || token.valid)
{
if (traditional_tag_style)
{
which uses the new method for naming tags (see new_pfnote). */
char *name = NULL;
- if (CTAGS || tok.named)
+ if (CTAGS || token.named)
name = savestr (token_name.buffer);
- pfnote (name, isfun,
- tok.buffer, tok.linelen, tok.lineno, tok.linepos);
+ if (DEBUG && !token.valid)
+ {
+ if (token.named)
+ name = concat (name, "##invalid##", "");
+ else
+ name = savestr ("##invalid##");
+ }
+ pfnote (name, isfun, token.line,
+ token.offset+token.length+1, token.lineno, token.linepos);
}
else
- new_pfnote (token_name.buffer, token_name.len, isfun,
- tok.buffer, tok.linelen, tok.lineno, tok.linepos);
- tok.valid = FALSE;
+ new_pfnote (token_name.buffer, token_name.len, isfun, token.line,
+ token.offset+token.length+1, token.lineno, token.linepos);
+ token.valid = FALSE;
}
- else if (DEBUG)
- abort ();
}
-void
+/*
+ * C_entries ()
+ * This routine finds functions, variables, typedefs,
+ * #define's, enum constants and struct/union/enum definitions in
+ * C syntax and adds them to the list.
+ */
+static void
C_entries (c_ext, inf)
int c_ext; /* extension of C */
FILE *inf; /* input file */
int qlen; /* length of qualifier */
int cblev; /* current curly brace level */
int parlev; /* current parenthesis level */
+ int typdefcblev; /* cblev where a typedef struct body begun */
bool incomm, inquote, inchar, quotednl, midtoken;
- bool purec, cplpl, cjava;
- token savetok; /* token saved during preprocessor handling */
+ bool cplpl, cjava;
+ bool yacc_rules; /* in the rules part of a yacc file */
+ struct tok savetoken; /* token saved during preprocessor handling */
+ initbuffer (&token_name);
+ initbuffer (&lbs[0].lb);
+ initbuffer (&lbs[1].lb);
+ if (cstack.size == 0)
+ {
+ cstack.size = (DEBUG) ? 1 : 4;
+ cstack.nl = 0;
+ cstack.cname = xnew (cstack.size, char *);
+ cstack.cblev = xnew (cstack.size, int);
+ }
+
tokoff = toklen = 0; /* keep compiler quiet */
curndx = newndx = 0;
lineno = 0;
fvdef = fvnone; fvextern = FALSE; typdef = tnone;
structdef = snone; definedef = dnone; objdef = onone;
- next_token_is_func = yacc_rules = FALSE;
+ yacc_rules = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
- tok.valid = savetok.valid = FALSE;
+ token.valid = savetoken.valid = FALSE;
cblev = 0;
+ typdefcblev = 0;
parlev = 0;
- purec = !(c_ext & ~YACC); /* no extensions (apart from possibly yacc) */
cplpl = (c_ext & C_PLPL) == C_PLPL;
cjava = (c_ext & C_JAVA) == C_JAVA;
if (cjava)
else
{ qualifier = "::"; qlen = 2; }
+
while (!feof (inf))
{
c = *lp++;
{
case '"':
inquote = TRUE;
- if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ switch (fvdef)
{
+ case fdefunkey:
+ case fstartlist:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ default:
fvextern = FALSE;
fvdef = fvnone;
}
case '%':
if ((c_ext & YACC) && *lp == '%')
{
- /* entering or exiting rules section in yacc file */
+ /* Entering or exiting rules section in yacc file. */
lp++;
definedef = dnone; fvdef = fvnone; fvextern = FALSE;
typdef = tnone; structdef = snone;
- next_token_is_func = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
cblev = 0;
yacc_rules = !yacc_rules;
} /* switch (c) */
- /* Consider token only if some complicated conditions are satisfied. */
- if ((definedef != dnone
- || (cblev == 0 && structdef != scolonseen)
- || (cblev == 1 && cplpl && structdef == sinbody)
- || (structdef == sinbody && purec))
- && typdef != tignore
+ /* Consider token only if some involved conditions are satisfied. */
+ if (typdef != tignore
&& definedef != dignorerest
- && fvdef != finlist)
+ && fvdef != finlist
+ && structdef != sintemplate
+ && (definedef != dnone
+ || structdef != scolonseen))
{
if (midtoken)
{
if (endtoken (c))
{
- bool funorvar = FALSE;
-
if (c == ':' && cplpl && *lp == ':' && begtoken (lp[1]))
{
/*
lp += 2;
toklen += 2;
c = lp[-1];
- goto intok;
+ goto still_in_token;
}
else
{
+ bool funorvar = FALSE;
+
if (yacc_rules
|| consider_token (newlb.buffer + tokoff, toklen, c,
- c_ext, cblev, parlev, &funorvar))
+ &c_ext, cblev, parlev, &funorvar))
{
if (fvdef == foperator)
{
if (*lp != '\0')
lp += 1;
while (*lp != '\0'
- && !isspace (*lp) && *lp != '(')
+ && !iswhite (*lp) && *lp != '(')
lp += 1;
c = *lp++;
toklen += lp - oldlp;
}
- tok.named = FALSE;
- if (!purec
- && funorvar
- && definedef == dnone
- && structdef == sinbody)
- /* function or var defined in C++ class body */
+ token.named = FALSE;
+ if ((c_ext & C_EXT) /* not pure C */
+ && nestlev > 0 && definedef == dnone)
+ /* in struct body */
{
- int len = strlen (structtag) + qlen + toklen;
- grow_linebuffer (&token_name, len + 1);
- strcpy (token_name.buffer, structtag);
+ write_classname (&token_name, qualifier);
+ linebuffer_setlen (&token_name,
+ token_name.len+qlen+toklen);
strcat (token_name.buffer, qualifier);
strncat (token_name.buffer,
newlb.buffer + tokoff, toklen);
- token_name.len = len;
- tok.named = TRUE;
+ token.named = TRUE;
}
else if (objdef == ocatseen)
/* Objective C category */
{
int len = strlen (objtag) + 2 + toklen;
- grow_linebuffer (&token_name, len + 1);
+ linebuffer_setlen (&token_name, len);
strcpy (token_name.buffer, objtag);
strcat (token_name.buffer, "(");
strncat (token_name.buffer,
newlb.buffer + tokoff, toklen);
strcat (token_name.buffer, ")");
- token_name.len = len;
- tok.named = TRUE;
+ token.named = TRUE;
}
else if (objdef == omethodtag
|| objdef == omethodparm)
/* Objective C method */
{
- tok.named = TRUE;
+ token.named = TRUE;
+ }
+ else if (fvdef == fdefunname)
+ /* GNU DEFUN and similar macros */
+ {
+ bool defun = (newlb.buffer[tokoff] == 'F');
+ int off = tokoff;
+ int len = toklen;
+
+ /* Rewrite the tag so that emacs lisp DEFUNs
+ can be found by their elisp name */
+ if (defun)
+ {
+ off += 1;
+ len -= 1;
+ }
+ len = toklen;
+ linebuffer_setlen (&token_name, len);
+ strncpy (token_name.buffer,
+ newlb.buffer + off, len);
+ token_name.buffer[len] = '\0';
+ if (defun)
+ while (--len >= 0)
+ if (token_name.buffer[len] == '_')
+ token_name.buffer[len] = '-';
+ token.named = defun;
}
else
{
- grow_linebuffer (&token_name, toklen + 1);
+ linebuffer_setlen (&token_name, toklen);
strncpy (token_name.buffer,
newlb.buffer + tokoff, toklen);
token_name.buffer[toklen] = '\0';
- token_name.len = toklen;
/* Name macros and members. */
- tok.named = (structdef == stagseen
- || typdef == ttypeseen
- || typdef == tend
- || (funorvar
- && definedef == dignorerest)
- || (funorvar
- && definedef == dnone
- && structdef == sinbody));
+ token.named = (structdef == stagseen
+ || typdef == ttypeseen
+ || typdef == tend
+ || (funorvar
+ && definedef == dignorerest)
+ || (funorvar
+ && definedef == dnone
+ && structdef == snone
+ && cblev > 0));
}
- tok.lineno = lineno;
- tok.linelen = tokoff + toklen + 1;
- tok.buffer = newlb.buffer;
- tok.linepos = newlinepos;
- tok.valid = TRUE;
+ token.lineno = lineno;
+ token.offset = tokoff;
+ token.length = toklen;
+ token.line = newlb.buffer;
+ token.linepos = newlinepos;
+ token.valid = TRUE;
if (definedef == dnone
&& (fvdef == fvnameseen
|| fvdef == foperator
|| structdef == stagseen
|| typdef == tend
+ || typdef == ttypeseen
|| objdef != onone))
{
if (current_lb_is_new)
switch_line_buffers ();
}
- else
+ else if (definedef != dnone
+ || fvdef == fdefunname
+ || instruct)
make_C_tag (funorvar);
}
midtoken = FALSE;
}
} /* if (endtoken (c)) */
else if (intoken (c))
- intok:
+ still_in_token:
{
toklen++;
continue;
break;
}
if (structdef == stagseen && !cjava)
- structdef = snone;
+ {
+ popclass_above (cblev);
+ structdef = snone;
+ }
break;
case dsharpseen:
- savetok = tok;
+ savetoken = token;
}
if (!yacc_rules || lp == newlb.buffer + 1)
{
switch (c)
{
case ':':
+ if (yacc_rules && token.offset == 0 && token.valid)
+ {
+ make_C_tag (FALSE); /* a yacc function */
+ break;
+ }
if (definedef != dnone)
break;
switch (objdef)
case omethodtag:
case omethodparm:
objdef = omethodcolon;
- methodlen += 1;
- grow_linebuffer (&token_name, methodlen + 1);
+ linebuffer_setlen (&token_name, token_name.len + 1);
strcat (token_name.buffer, ":");
- token_name.len = methodlen;
break;
}
if (structdef == stagseen)
structdef = scolonseen;
- else
- switch (fvdef)
- {
- case fvnameseen:
- if (yacc_rules)
- {
- make_C_tag (FALSE); /* a yacc function */
- fvdef = fignore;
- }
- break;
- case fstartlist:
- fvextern = FALSE;
- fvdef = fvnone;
- break;
- }
break;
case ';':
if (definedef != dnone)
break;
- if (cblev == 0)
- switch (typdef)
- {
- case tend:
- make_C_tag (FALSE); /* a typedef */
- /* FALLTHRU */
- default:
- typdef = tnone;
- }
- switch (fvdef)
+ switch (typdef)
{
- case fignore:
- break;
- case fvnameseen:
- if ((members && cblev == 1)
- || (globals && cblev == 0 && (!fvextern || declarations)))
- make_C_tag (FALSE); /* a variable */
- fvextern = FALSE;
+ case tend:
+ case ttypeseen:
+ make_C_tag (FALSE); /* a typedef */
+ typdef = tnone;
fvdef = fvnone;
- tok.valid = FALSE;
break;
- case flistseen:
- if (declarations && (cblev == 0 || cblev == 1))
- make_C_tag (TRUE); /* a function declaration */
+ case tnone:
+ case tinbody:
+ case tignore:
+ switch (fvdef)
+ {
+ case fignore:
+ if (typdef == tignore)
+ fvdef = fvnone;
+ break;
+ case fvnameseen:
+ if ((globals && cblev == 0 && (!fvextern || declarations))
+ || (members && instruct))
+ make_C_tag (FALSE); /* a variable */
+ fvextern = FALSE;
+ fvdef = fvnone;
+ token.valid = FALSE;
+ break;
+ case flistseen:
+ if ((declarations && typdef == tnone && !instruct)
+ || (members && typdef != tignore && instruct))
+ make_C_tag (TRUE); /* a function declaration */
+ /* FALLTHRU */
+ default:
+ fvextern = FALSE;
+ fvdef = fvnone;
+ if (declarations
+ && structdef == stagseen && (c_ext & C_PLPL))
+ make_C_tag (FALSE); /* forward declaration */
+ else
+ /* The following instruction invalidates the token.
+ Probably the token should be invalidated in all other
+ cases where some state machine is reset prematurely. */
+ token.valid = FALSE;
+ } /* switch (fvdef) */
/* FALLTHRU */
default:
- fvextern = FALSE;
- fvdef = fvnone;
- /* The following instruction invalidates the token.
- Probably the token should be invalidated in all
- other cases where some state machine is reset. */
- tok.valid = FALSE;
+ if (!instruct)
+ typdef = tnone;
}
if (structdef == stagseen)
structdef = snone;
}
switch (fvdef)
{
+ case fdefunkey:
case foperator:
+ case fstartlist:
case finlist:
case fignore:
case vignore:
break;
- case fvnameseen:
- if ((members && cblev == 1)
- || (globals && cblev == 0 && (!fvextern || declarations)))
- make_C_tag (FALSE); /* a variable */
+ case fdefunname:
+ fvdef = fignore;
+ break;
+ case fvnameseen: /* a variable */
+ if ((globals && cblev == 0 && (!fvextern || declarations))
+ || (members && instruct))
+ make_C_tag (FALSE);
+ break;
+ case flistseen: /* a function */
+ if ((declarations && typdef == tnone && !instruct)
+ || (members && typdef != tignore && instruct))
+ {
+ make_C_tag (TRUE); /* a function declaration */
+ fvdef = fvnameseen;
+ }
+ else if (!declarations)
+ fvdef = fvnone;
+ token.valid = FALSE;
break;
default:
fvdef = fvnone;
case '[':
if (definedef != dnone)
break;
- if (cblev == 0 && typdef == tend)
+ if (structdef == stagseen)
+ structdef = snone;
+ switch (typdef)
{
+ case ttypeseen:
+ case tend:
typdef = tignore;
make_C_tag (FALSE); /* a typedef */
break;
- }
- switch (fvdef)
- {
- case foperator:
- case finlist:
- case fignore:
- case vignore:
+ case tnone:
+ case tinbody:
+ switch (fvdef)
+ {
+ case foperator:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ case fvnameseen:
+ if ((members && cblev == 1)
+ || (globals && cblev == 0
+ && (!fvextern || declarations)))
+ make_C_tag (FALSE); /* a variable */
+ /* FALLTHRU */
+ default:
+ fvdef = fvnone;
+ }
break;
- case fvnameseen:
- if ((members && cblev == 1)
- || (globals && cblev == 0 && (!fvextern || declarations)))
- make_C_tag (FALSE); /* a variable */
- /* FALLTHRU */
- default:
- fvdef = fvnone;
}
- if (structdef == stagseen)
- structdef = snone;
break;
case '(':
if (definedef != dnone)
{
case fvnameseen:
if (typdef == ttypeseen
- && tok.valid
&& *lp != '*'
- && structdef != sinbody)
+ && !instruct)
{
/* This handles constructs like:
typedef void OperatorFun (int fun); */
make_C_tag (FALSE);
typdef = tignore;
+ fvdef = fignore;
+ break;
}
/* FALLTHRU */
case foperator:
fvdef = flistseen;
break;
}
- if (cblev == 0 && (typdef == tend))
+ if (!instruct
+ && (typdef == tend
+ || typdef == ttypeseen))
{
typdef = tignore;
make_C_tag (FALSE); /* a typedef */
if (definedef != dnone)
break;
if (typdef == ttypeseen)
- typdef = tinbody;
- switch (structdef)
{
- case skeyseen: /* unnamed struct */
- structdef = sinbody;
- structtag = "_anonymous_";
- break;
- case stagseen:
- case scolonseen: /* named struct */
- structdef = sinbody;
- make_C_tag (FALSE); /* a struct */
- break;
+ typdefcblev = cblev;
+ typdef = tinbody;
}
switch (fvdef)
{
case flistseen:
- make_C_tag (TRUE); /* a function */
+ make_C_tag (TRUE); /* a function */
/* FALLTHRU */
case fignore:
fvdef = fvnone;
break;
default:
/* Neutralize `extern "C" {' grot. */
- if (cblev == 0 && structdef == snone && typdef == tnone)
+ if (cblev == 0 && structdef == snone && nestlev == 0
+ && typdef == tnone)
cblev = -1;
}
}
+ switch (structdef)
+ {
+ case skeyseen: /* unnamed struct */
+ pushclass_above (cblev, NULL, 0);
+ structdef = snone;
+ break;
+ case stagseen: /* named struct or enum */
+ case scolonseen: /* a class */
+ pushclass_above (cblev, token.line+token.offset, token.length);
+ structdef = snone;
+ make_C_tag (FALSE); /* a struct or enum */
+ break;
+ }
cblev++;
break;
case '*':
}
else if (cblev > 0)
cblev--;
- if (cblev == 0)
+ popclass_above (cblev);
+ structdef = snone;
+ if (typdef == tinbody && cblev <= typdefcblev)
{
- if (typdef == tinbody)
- typdef = tend;
- /* Memory leakage here: the string pointed by structtag is
- never released, because I fear to miss something and
- break things while freeing the area. The amount of
- memory leaked here is the sum of the lengths of the
- struct tags.
- if (structdef == sinbody)
- free (structtag); */
-
- structdef = snone;
- structtag = "<error>";
+ assert (cblev == typdefcblev);
+ typdef = tend;
}
break;
case '=':
fvdef = vignore;
}
break;
+ case '<':
+ if (cplpl && structdef == stagseen)
+ {
+ structdef = sintemplate;
+ break;
+ }
+ goto resetfvdef;
+ case '>':
+ if (structdef == sintemplate)
+ {
+ structdef = stagseen;
+ break;
+ }
+ goto resetfvdef;
case '+':
case '-':
if (objdef == oinbody && cblev == 0)
break;
}
/* FALLTHRU */
+ resetfvdef:
case '#': case '~': case '&': case '%': case '/': case '|':
- case '^': case '!': case '<': case '>': case '.': case '?': case ']':
+ case '^': case '!': case '.': case '?': case ']':
if (definedef != dnone)
break;
/* These surely cannot follow a function tag in C. */
} /* switch (c) */
} /* while not eof */
+
+ free (token_name.buffer);
+ free (lbs[0].lb.buffer);
+ free (lbs[1].lb.buffer);
}
/*
* Process either a C++ file or a C file depending on the setting
* of a global flag.
*/
-void
+static void
default_C_entries (inf)
FILE *inf;
{
- C_entries (cplusplus ? C_PLPL : 0, inf);
+ C_entries (cplusplus ? C_PLPL : C_AUTO, inf);
}
-/* Always do plain ANSI C. */
-void
+/* Always do plain C. */
+static void
plain_C_entries (inf)
FILE *inf;
{
}
/* Always do C++. */
-void
+static void
Cplusplus_entries (inf)
FILE *inf;
{
}
/* Always do Java. */
-void
+static void
Cjava_entries (inf)
FILE *inf;
{
}
/* Always do C*. */
-void
+static void
Cstar_entries (inf)
FILE *inf;
{
}
/* Always do Yacc. */
-void
+static void
Yacc_entries (inf)
FILE *inf;
{
C_entries (YACC, inf);
}
+
\f
/* A useful macro. */
#define LOOP_ON_INPUT_LINES(file_pointer, line_buffer, char_pointer) \
* Read a file, but do no processing. This is used to do regexp
* matching on files that have no language defined.
*/
-void
+static void
just_read_file (inf)
FILE *inf;
{
LOOP_ON_INPUT_LINES (inf, lb, dummy)
continue;
}
+
\f
/* Fortran parsing */
+static bool tail P_((char *));
+static void takeprec P_((void));
+static void getit P_((FILE *));
+
static bool
tail (cp)
char *cp;
return FALSE;
}
-void
+static void
takeprec ()
{
dbp = skip_spaces (dbp);
dbp += 3;
return;
}
- if (!isdigit (*dbp))
+ if (!ISDIGIT (*dbp))
{
--dbp; /* force failure */
return;
}
do
dbp++;
- while (isdigit (*dbp));
+ while (ISDIGIT (*dbp));
}
static void
dbp += 6;
dbp = skip_spaces (dbp);
}
- if (!isalpha (*dbp) && *dbp != '_' && *dbp != '$')
+ if (!ISALPHA (*dbp) && *dbp != '_' && *dbp != '$')
return;
for (cp = dbp + 1; *cp != '\0' && intoken (*cp); cp++)
continue;
}
-void
+static void
Fortran_functions (inf)
FILE *inf;
{
}
}
}
+
\f
/*
- * Philippe Waroquiers <philippe.waroquiers@eurocontrol.be>, 1998-04-24
* Ada parsing
+ * Philippe Waroquiers <philippe.waroquiers@eurocontrol.be> (1998)
*/
+
+static void adagetit P_((FILE *, char *));
+
/* Once we are positioned after an "interesting" keyword, let's get
the real tag value necessary. */
static void
dbp = skip_spaces (dbp);
for (cp = dbp;
(*cp != '\0'
- && (isalpha (*cp) || isdigit (*cp) || *cp == '_' || *cp == '.'));
+ && (ISALPHA (*cp) || ISDIGIT (*cp) || *cp == '_' || *cp == '.'));
cp++)
continue;
if (cp == dbp)
}
}
-void
+static void
Ada_funcs (inf)
FILE *inf;
{
} /* advance char */
} /* advance line */
}
+
\f
/*
* Bob Weiner, Motorola Inc., 4/3/94
* Unix and microcontroller assembly tag handling
* look for '^[a-zA-Z_.$][a-zA_Z0-9_.$]*[: ^I^J]'
*/
-void
+static void
Asm_labels (inf)
FILE *inf;
{
{
/* If first char is alphabetic or one of [_.$], test for colon
following identifier. */
- if (isalpha (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
+ if (ISALPHA (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
{
/* Read past label. */
cp++;
- while (isalnum (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
+ while (ISALNUM (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
cp++;
- if (*cp == ':' || isspace (*cp))
+ if (*cp == ':' || iswhite (*cp))
{
/* Found end of label, so copy it and add it to the table. */
pfnote (savenstr(lb.buffer, cp-lb.buffer), TRUE,
}
}
}
+
\f
/*
- * Perl support by Bart Robinson <lomew@cs.utah.edu>
- * enhanced by Michael Ernst <mernst@alum.mit.edu>
+ * Perl support
* Perl sub names: look for /^sub[ \t\n]+[^ \t\n{]+/
* Perl variable names: /^(my|local).../
+ * Bart Robinson <lomew@cs.utah.edu> (1995)
+ * Michael Ernst <mernst@alum.mit.edu> (1997)
*/
-void
+static void
Perl_functions (inf)
FILE *inf;
{
{
if (*cp++ == 's'
&& *cp++ == 'u'
- && *cp++ == 'b' && isspace (*cp++))
+ && *cp++ == 'b' && iswhite (*cp++))
{
cp = skip_spaces (cp);
if (*cp != '\0')
{
char *sp = cp;
while (*cp != '\0'
- && !isspace (*cp) && *cp != '{' && *cp != '(')
+ && !iswhite (*cp) && *cp != '{' && *cp != '(')
cp++;
pfnote (savenstr (sp, cp-sp), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
&& *cp++ == 'c'
&& *cp++ == 'a'
&& *cp++ == 'l'))
- && (*cp == '(' || isspace (*cp)))
+ && (*cp == '(' || iswhite (*cp)))
{
/* After "my" or "local", but before any following paren or space. */
char *varname = NULL;
if (*cp == '$' || *cp == '@' || *cp == '%')
{
char* varstart = ++cp;
- while (isalnum (*cp) || *cp == '_')
+ while (ISALNUM (*cp) || *cp == '_')
cp++;
varname = savenstr (varstart, cp-varstart);
}
}
}
}
+
\f
/*
- * Python support by Eric S. Raymond <esr@thyrsus.com>
- * Look for /^def[ \t\n]+[^ \t\n(:]+/ or /^class[ \t\n]+[^ \t\n(:]+/
+ * Python support
+ * Look for /^[ \t\n]*def[ \t\n]+[^ \t\n(:]+/ or /^class[ \t\n]+[^ \t\n(:]+/
+ * Eric S. Raymond <esr@thyrsus.com> (1997)
+ * Sean Legassick <sean@informage.net> (2004)
*/
-void
+static void
Python_functions (inf)
FILE *inf;
{
LOOP_ON_INPUT_LINES (inf, lb, cp)
{
+ cp = skip_spaces (cp);
if (*cp++ == 'd'
&& *cp++ == 'e'
- && *cp++ == 'f' && isspace (*cp++))
+ && *cp++ == 'f' && iswhite (*cp++))
{
cp = skip_spaces (cp);
- while (*cp != '\0' && !isspace (*cp) && *cp != '(' && *cp != ':')
+ while (*cp != '\0' && !iswhite (*cp) && *cp != '(' && *cp != ':')
cp++;
pfnote (NULL, TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
&& *cp++ == 'l'
&& *cp++ == 'a'
&& *cp++ == 's'
- && *cp++ == 's' && isspace (*cp++))
+ && *cp++ == 's' && iswhite (*cp++))
{
cp = skip_spaces (cp);
- while (*cp != '\0' && !isspace (*cp) && *cp != '(' && *cp != ':')
+ while (*cp != '\0' && !iswhite (*cp) && *cp != '(' && *cp != ':')
cp++;
pfnote (NULL, TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
}
}
+
\f
/* Idea by Corny de Souza
* Cobol tag functions
* We could look for anything that could be a paragraph name.
* i.e. anything that starts in column 8 is one word and ends in a full stop.
*/
-void
+static void
Cobol_paragraphs (inf)
FILE *inf;
{
bp += 8;
/* If eoln, compiler option or comment ignore whole line. */
- if (bp[-1] != ' ' || !isalnum (bp[0]))
+ if (bp[-1] != ' ' || !ISALNUM (bp[0]))
continue;
- for (ep = bp; isalnum (*ep) || *ep == '-'; ep++)
+ for (ep = bp; ISALNUM (*ep) || *ep == '-'; ep++)
continue;
if (*ep++ == '.')
pfnote (savenstr (bp, ep-bp), TRUE,
lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
}
}
+
+\f
+/*
+ * Makefile support
+ * Idea by Assar Westerlund <assar@sics.se> (2001)
+ */
+static void
+Makefile_targets (inf)
+ FILE *inf;
+{
+ register char *bp;
+
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
+ {
+ if (*bp == '\t' || *bp == '#')
+ continue;
+ while (*bp != '\0' && *bp != '=' && *bp != ':')
+ bp++;
+ if (*bp == ':')
+ pfnote (savenstr (lb.buffer, bp - lb.buffer), TRUE,
+ lb.buffer, bp - lb.buffer + 1, lineno, linecharno);
+ }
+}
+
\f
/* Added by Mosur Mohan, 4/22/88 */
/* Pascal parsing */
* "forward" immediately following the procedure statement; if found,
* the tag is skipped.
*/
-void
+static void
Pascal_functions (inf)
FILE *inf;
{
continue;
/* save all values for later tagging */
- grow_linebuffer (&tline, lb.len + 1);
+ linebuffer_setlen (&tline, lb.len);
strcpy (tline.buffer, lb.buffer);
save_lineno = lineno;
save_lcno = linecharno;
free (tline.buffer);
}
+
\f
/*
- * lisp tag functions
+ * Lisp tag functions
* look for (def or (DEF, quote or QUOTE
*/
+
+static int L_isdef P_((char *));
+static int L_isquote P_((char *));
+static void L_getit P_((void));
+
static int
L_isdef (strp)
register char *strp;
&& (*++strp == 'o' || *strp == 'O')
&& (*++strp == 't' || *strp == 'T')
&& (*++strp == 'e' || *strp == 'E')
- && isspace (*++strp));
+ && iswhite (*++strp));
}
static void
}
for (cp = dbp /*+1*/;
- *cp != '\0' && *cp != '(' && !isspace(*cp) && *cp != ')';
+ *cp != '\0' && *cp != '(' && !iswhite(*cp) && *cp != ')';
cp++)
continue;
if (cp == dbp)
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
-void
+static void
Lisp_functions (inf)
FILE *inf;
{
/* Check for (foo::defmumble name-defined ... */
do
dbp++;
- while (*dbp != '\0' && !isspace (*dbp)
+ while (*dbp != '\0' && !iswhite (*dbp)
&& *dbp != ':' && *dbp != '(' && *dbp != ')');
if (*dbp == ':')
{
}
}
}
+
\f
/*
* Postscript tag functions
* Just look for lines where the first character is '/'
- * Richard Mlynarik <mly@adoc.xerox.com>
* Also look at "defineps" for PSWrap
- * suggested by Masatake YAMATO <masata-y@is.aist-nara.ac.jp>
+ * Richard Mlynarik <mly@adoc.xerox.com> (1997)
+ * Ideas by Masatake Yamato <masata-y@is.aist-nara.ac.jp> (1999)
*/
-void
+static void
Postscript_functions (inf)
FILE *inf;
{
* look for (set! xyzzy
*/
-void
+static void
Scheme_functions (inf)
FILE *inf;
{
{
bp = skip_non_spaces (bp);
/* Skip over open parens and white space */
- while (isspace (*bp) || *bp == '(')
+ while (iswhite (*bp) || *bp == '(')
bp++;
get_tag (bp);
}
&& (bp[2] == 'E' || bp[2] == 'e')
&& (bp[3] == 'T' || bp[3] == 't')
&& (bp[4] == '!' || bp[4] == '!')
- && (isspace (bp[5])))
+ && (iswhite (bp[5])))
{
bp = skip_non_spaces (bp);
bp = skip_spaces (bp);
}
}
}
+
\f
/* Find tags in TeX and LaTeX input files. */
:chapter:section:subsection:subsubsection:eqno:label:ref:cite:bibitem\
:part:appendix:entry:index";
-void TEX_mode (FILE *inf);
-struct TEX_tabent *TEX_decode_env (char *evarname, char *defenv);
-int TEX_Token (char *cp);
+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 = '{';
/*
* TeX/LaTeX scanning loop.
*/
-void
-TeX_functions (inf)
+static void
+TeX_commands (inf)
FILE *inf;
{
char *cp, *lasthit;
/* Figure out whether TeX's escapechar is '\\' or '!' and set grouping
chars accordingly. */
-void
+static void
TEX_mode (inf)
FILE *inf;
{
/* Read environment and prepend it to the default string.
Build token table. */
-struct TEX_tabent *
+static struct TEX_tabent *
TEX_decode_env (evarname, defenv)
char *evarname;
char *defenv;
Otherwise return -1.
Keep the capital `T' in `token' for dumb truncating compilers
(this distinguishes it from `TEX_toktab' */
-int
+static int
TEX_Token (cp)
char *cp;
{
return i;
return -1;
}
+
+\f
+/* Texinfo support. Dave Love, Mar. 2000. */
+static void
+Texinfo_nodes (inf)
+ FILE * inf;
+{
+ char *cp, *start;
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
+ {
+ if ((*cp++ == '@'
+ && *cp++ == 'n'
+ && *cp++ == 'o'
+ && *cp++ == 'd'
+ && *cp++ == 'e' && iswhite (*cp++)))
+ {
+ start = cp = skip_spaces(cp);
+ while (*cp != '\0' && *cp != ',')
+ cp++;
+ pfnote (savenstr (start, cp - start), TRUE,
+ lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ }
+ }
+}
+
\f
/*
* Prolog support (rewritten) by Anders Lindgren, Mar. 96
* Assumes that the predicate starts at column 0.
* Only the first clause of a predicate is added.
*/
-int prolog_pred (char *s, char *last);
-void prolog_skip_comment (linebuffer *plb, FILE *inf);
-int prolog_atom (char *s, int pos);
+static int prolog_pred P_((char *, char *));
+static void prolog_skip_comment P_((linebuffer *, FILE *));
+static int prolog_atom P_((char *, int));
-void
+static void
Prolog_functions (inf)
FILE *inf;
{
{
if (cp[0] == '\0') /* Empty line */
continue;
- else if (isspace (cp[0])) /* Not a predicate */
+ else if (iswhite (cp[0])) /* Not a predicate */
continue;
else if (cp[0] == '/' && cp[1] == '*') /* comment. */
prolog_skip_comment (&lb, inf);
if (last == NULL)
last = xnew(len + 1, char);
else if (len + 1 > allocated)
- last = xrnew (last, len + 1, char);
+ xrnew (last, len + 1, char);
allocated = len + 1;
strncpy (last, cp, len);
last[len] = '\0';
}
-void
+static void
prolog_skip_comment (plb, inf)
linebuffer *plb;
FILE *inf;
* Return the size of the name of the predicate, or 0 if no header
* was found.
*/
-int
+static int
prolog_pred (s, last)
char *s;
char *last; /* Name of last clause. */
* - A quoted arbitrary string. Single quotes can escape themselves.
* Backslash quotes everything.
*/
-int
+static int
prolog_atom (s, pos)
char *s;
int pos;
origpos = pos;
- if (islower(s[pos]) || (s[pos] == '_'))
+ if (ISLOWER(s[pos]) || (s[pos] == '_'))
{
/* The atom is unquoted. */
pos++;
- while (isalnum(s[pos]) || (s[pos] == '_'))
+ while (ISALNUM(s[pos]) || (s[pos] == '_'))
{
pos++;
}
else
return -1;
}
+
\f
/*
* Support for Erlang -- Anders Lindgren, Feb 1996.
*
* Assumes that Erlang functions start at column 0.
*/
-int erlang_func (char *s, char *last);
-void erlang_attribute (char *s);
-int erlang_atom (char *s, int pos);
+static int erlang_func P_((char *, char *));
+static void erlang_attribute P_((char *));
+static int erlang_atom P_((char *, int));
-void
+static void
Erlang_functions (inf)
FILE *inf;
{
{
if (cp[0] == '\0') /* Empty line */
continue;
- else if (isspace (cp[0])) /* Not function nor attribute */
+ else if (iswhite (cp[0])) /* Not function nor attribute */
continue;
else if (cp[0] == '%') /* comment */
continue;
if (last == NULL)
last = xnew (len + 1, char);
else if (len + 1 > allocated)
- last = xrnew (last, len + 1, char);
+ xrnew (last, len + 1, char);
allocated = len + 1;
strncpy (last, cp, len);
last[len] = '\0';
* Return the size of the name of the function, or 0 if no function
* was found.
*/
-int
+static int
erlang_func (s, last)
char *s;
char *last; /* Name of last clause. */
* -define(Foo(M, N), M+N).
* -record(graph, {vtab = notable, cyclic = true}).
*/
-void
+static void
erlang_attribute (s)
char *s;
{
* Consume an Erlang atom (or variable).
* Return the number of bytes consumed, or -1 if there was an error.
*/
-int
+static int
erlang_atom (s, pos)
char *s;
int pos;
origpos = pos;
- if (isalpha (s[pos]) || s[pos] == '_')
+ if (ISALPHA (s[pos]) || s[pos] == '_')
{
/* The atom is unquoted. */
pos++;
- while (isalnum (s[pos]) || s[pos] == '_')
+ while (ISALNUM (s[pos]) || s[pos] == '_')
pos++;
return pos - origpos;
}
else
return -1;
}
+
\f
#ifdef ETAGS_REGEXPS
+static char *scan_separators P_((char *));
+static void analyse_regex P_((char *, bool));
+static void add_regex P_((char *, bool, language *));
+static char *substitute P_((char *, char *, struct re_registers *));
+
/* Take a string like "/blah/" and turn it into "blah", making sure
that the first and last characters are the same, and handling
quoted separator characters. Actually, stops on the occurrence of
/* Look at the argument of --regex or --no-regex and do the right
thing. Same for each line of a regexp file. */
-void
+static void
analyse_regex (regex_arg, ignore_case)
char *regex_arg;
bool ignore_case;
return;
}
*cp = '\0';
- lang = get_language_from_name (lang_name);
+ lang = get_language_from_langname (lang_name);
if (lang == NULL)
return;
add_regex (cp + 1, ignore_case, lang);
/* Turn a name, which is an ed-style (but Emacs syntax) regular
expression, into a real regular expression by compiling it. */
-void
+static void
add_regex (regexp_pattern, ignore_case, lang)
char *regexp_pattern;
bool ignore_case;
language *lang;
{
+ static struct re_pattern_buffer zeropattern;
char *name;
const char *err;
struct re_pattern_buffer *patbuf;
(void) scan_separators (name);
patbuf = xnew (1, struct re_pattern_buffer);
+ *patbuf = zeropattern;
/* Translation table to fold case if appropriate. */
patbuf->translate = (ignore_case) ? lc_trans : NULL;
- patbuf->fastmap = NULL;
- patbuf->buffer = NULL;
- patbuf->allocated = 0;
err = re_compile_pattern (regexp_pattern, strlen (regexp_pattern), patbuf);
if (err != NULL)
for (t = etags_strchr (out, '\\');
t != NULL;
t = etags_strchr (t + 2, '\\'))
- if (isdigit (t[1]))
+ if (ISDIGIT (t[1]))
{
dig = t[1] - '0';
diglen = regs->end[dig] - regs->start[dig];
result = xnew (size + 1, char);
for (t = result; *out != '\0'; out++)
- if (*out == '\\' && isdigit (*++out))
+ if (*out == '\\' && ISDIGIT (*++out))
{
- /* Using "dig2" satisfies my debugger. Bleah. */
dig = *out - '0';
diglen = regs->end[dig] - regs->start[dig];
strncpy (t, in + regs->start[dig], diglen);
*t++ = *out;
*t = '\0';
- if (DEBUG && (t > result + size || t - result != (int)strlen (result)))
- abort ();
+ assert (t <= result + size && t - result == (int)strlen (result));
return result;
}
/* Deallocate all patterns. */
-void
+static void
free_patterns ()
{
pattern *pp;
}
return;
}
+#endif /* ETAGS_REGEXPS */
+
\f
-void
+static void
get_tag (bp)
register char *bp;
{
return;
/* Go till you get to white space or a syntactic break */
for (cp = bp + 1;
- *cp != '\0' && *cp != '(' && *cp != ')' && !isspace (*cp);
+ *cp != '\0' && *cp != '(' && *cp != ')' && !iswhite (*cp);
cp++)
continue;
pfnote (savenstr (bp, cp-bp), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
-#endif /* ETAGS_REGEXPS */
/* Initialize a linebuffer for use */
-void
+static void
initbuffer (lbp)
linebuffer *lbp;
{
- lbp->size = 200;
- lbp->buffer = xnew (200, char);
+ lbp->size = (DEBUG) ? 3 : 200;
+ lbp->buffer = xnew (lbp->size, char);
+ lbp->buffer[0] = '\0';
+ lbp->len = 0;
}
/*
* platforms (for text files, it translates CR-NL to NL as it reads in the
* file).
*/
-long
+static long
readline_internal (lbp, stream)
linebuffer *lbp;
register FILE *stream;
{
/* We're at the end of linebuffer: expand it. */
lbp->size *= 2;
- buffer = xrnew (buffer, lbp->size, char);
+ xrnew (buffer, lbp->size, char);
p += buffer - lbp->buffer;
pend = buffer + lbp->size;
lbp->buffer = buffer;
* Like readline_internal, above, but in addition try to match the
* input line against relevant regular expressions.
*/
-long
+static long
readline (lbp, stream)
linebuffer *lbp;
FILE *stream;
return result;
}
+
\f
/*
* Return a pointer to a space of size strlen(cp)+1 allocated
* with xnew where the string CP has been copied.
*/
-char *
+static char *
savestr (cp)
char *cp;
{
* Return a pointer to a space of size LEN+1 allocated with xnew where
* the string CP has been copied for at most the first LEN characters.
*/
-char *
+static char *
savenstr (cp, len)
char *cp;
int len;
* Return the ptr in sp at which the character c last
* appears; NULL if not found
*
- * Identical to System V strrchr, included for portability.
+ * Identical to POSIX strrchr, included for portability.
*/
-char *
+static char *
etags_strrchr (sp, c)
- register char *sp, c;
+ register const char *sp;
+ register int c;
{
- register char *r;
+ register const char *r;
r = NULL;
do
if (*sp == c)
r = sp;
} while (*sp++);
- return r;
+ return (char *)r;
}
* Return the ptr in sp at which the character c first
* appears; NULL if not found
*
- * Identical to System V strchr, included for portability.
+ * Identical to POSIX strchr, included for portability.
*/
-char *
+static char *
etags_strchr (sp, c)
- register char *sp, c;
+ register const char *sp;
+ register int c;
{
do
{
if (*sp == c)
- return sp;
+ return (char *)sp;
} while (*sp++);
return NULL;
}
/* Skip spaces, return new pointer. */
-char *
+static char *
skip_spaces (cp)
char *cp;
{
- while (isspace (*cp)) /* isspace('\0')==FALSE */
+ while (iswhite (*cp))
cp++;
return cp;
}
/* Skip non spaces, return new pointer. */
-char *
+static char *
skip_non_spaces (cp)
char *cp;
{
- while (!iswhite (*cp)) /* iswhite('\0')==TRUE */
+ while (*cp != '\0' && !iswhite (*cp))
cp++;
return cp;
}
exit (BAD);
}
-void
+static void
pfatal (s1)
char *s1;
{
exit (BAD);
}
-void
+static void
suggest_asking_for_help ()
{
fprintf (stderr, "\tTry `%s %s' for a complete list of options.\n",
}
/* Print error message. `s1' is printf control string, `s2' is arg for it. */
-void
+static void
error (s1, s2)
const char *s1, *s2;
{
/* Return a newly-allocated string whose contents
concatenate those of s1, s2, s3. */
-char *
+static char *
concat (s1, s2, s3)
char *s1, *s2, *s3;
{
return result;
}
+
\f
/* Does the same work as the system V getcwd, but does not need to
guess the buffer size in advance. */
-char *
+static char *
etags_getcwd ()
{
#ifdef HAVE_GETCWD
return path;
#else /* not HAVE_GETCWD */
-#ifdef MSDOS
+#if MSDOS
+
char *p, path[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
getwd (path);
/* Return a newly allocated string containing the file name of FILE
relative to the absolute directory DIR (which should end with a slash). */
-char *
+static char *
relative_filename (file, dir)
char *file, *dir;
{
/* Return a newly allocated string containing the absolute file name
of FILE given DIR (which should end with a slash). */
-char *
+static char *
absolute_filename (file, dir)
char *file, *dir;
{
/* Return a newly allocated string containing the absolute
file name of dir where FILE resides given DIR (which should
end with a slash). */
-char *
+static char *
absolute_dirname (file, dir)
char *file, *dir;
{
/* Whether the argument string is an absolute file name. The argument
string must have been canonicalized with canonicalize_filename. */
-bool
+static bool
filename_is_absolute (fn)
char *fn;
{
return (fn[0] == '/'
#ifdef DOS_NT
- || (isalpha(fn[0]) && fn[1] == ':' && fn[2] == '/')
+ || (ISALPHA(fn[0]) && fn[1] == ':' && fn[2] == '/')
#endif
);
}
/* Translate backslashes into slashes. Works in place. */
-void
+static void
canonicalize_filename (fn)
register char *fn;
{
#ifdef DOS_NT
/* Canonicalize drive letter case. */
- if (islower (fn[0]))
- fn[0] = toupper (fn[0]);
+ if (fn[0] != '\0' && fn[1] == ':' && ISLOWER (fn[0]))
+ fn[0] = upcase (fn[0]);
/* Convert backslashes to slashes. */
for (; *fn != '\0'; fn++)
if (*fn == '\\')
#endif
}
-/* Increase the size of a linebuffer. */
-void
-grow_linebuffer (lbp, toksize)
+/* Set the minimum size of a string contained in a linebuffer. */
+static void
+linebuffer_setlen (lbp, toksize)
linebuffer *lbp;
int toksize;
{
- while (lbp->size < toksize)
- lbp->size *= 2;
- lbp->buffer = xrnew (lbp->buffer, lbp->size, char);
+ while (lbp->size <= toksize)
+ {
+ lbp->size *= 2;
+ xrnew (lbp->buffer, lbp->size, char);
+ }
+ lbp->len = toksize;
}
/* Like malloc but get fatal error if memory is exhausted. */
projects / chise / xemacs-chise.git.1 / blobdiff