-/* Tags file maker to go with GNU Emacs -*- coding: latin-1 -*-
+/* Tags file maker to go with GNU Emacs -*- coding: utf-8 -*-
Copyright (C) 1984 The Regents of the University of California
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-Copyright (C) 1984, 1987-1989, 1993-1995, 1998-2012
- Free Software Foundation, Inc.
+Copyright (C) 1984, 1987-1989, 1993-1995, 1998-2013 Free Software
+Foundation, Inc.
This file is not considered part of GNU Emacs.
* 1985 Emacs TAGS format by Richard Stallman.
* 1989 Sam Kendall added C++.
* 1992 Joseph B. Wells improved C and C++ parsing.
- * 1993 Francesco Potortì reorganized C and C++.
+ * 1993 Francesco Potortì reorganized C and C++.
* 1994 Line-by-line regexp tags by Tom Tromey.
- * 2001 Nested classes by Francesco Potortì (concept by Mykola Dzyuba).
- * 2002 #line directives by Francesco Potortì.
+ * 2001 Nested classes by Francesco Potortì (concept by Mykola Dzyuba).
+ * 2002 #line directives by Francesco Potortì.
*
- * Francesco Potort
ì <pot@gnu.org> has maintained and improved it since 1993.
+ * Francesco Potort
ì <pot@gnu.org> has maintained and improved it since 1993.
*/
/*
# undef HAVE_NTGUI
# undef DOS_NT
# define DOS_NT
-# ifndef HAVE_GETCWD
-# define HAVE_GETCWD
-# endif /* undef HAVE_GETCWD */
-#else /* not WINDOWSNT */
-#endif /* !WINDOWSNT */
+#endif /* WINDOWSNT */
#include <unistd.h>
-#ifndef HAVE_UNISTD_H
-# if defined (HAVE_GETCWD) && !defined (WINDOWSNT)
- extern char *getcwd (char *buf, size_t size);
-# endif
-#endif /* HAVE_UNISTD_H */
-
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
# define assert(x) ((void) 0)
#endif
-#ifdef NO_LONG_OPTIONS /* define this if you don't have GNU getopt */
-# define NO_LONG_OPTIONS TRUE
-# define getopt_long(argc,argv,optstr,lopts,lind) getopt (argc, argv, optstr)
- extern char *optarg;
- extern int optind, opterr;
-#else
-# define NO_LONG_OPTIONS FALSE
-# include <getopt.h>
-#endif /* NO_LONG_OPTIONS */
-
+#include <getopt.h>
#include <regex.h>
/* Define CTAGS to make the program "ctags" compatible with the usual one.
static char *concat (const char *, const char *, const char *);
static char *skip_spaces (char *);
static char *skip_non_spaces (char *);
+static char *skip_name (char *);
static char *savenstr (const char *, int);
static char *savestr (const char *);
static char *etags_strchr (const char *, int);
"In Lisp code, any function defined with `defun', any variable\n\
defined with `defvar' or `defconst', and in general the first\n\
argument of any expression that starts with `(def' in column zero\n\
-is a tag.";
+is a tag.\n\
+The `--declarations' option tags \"(defvar foo)\" constructs too.";
static const char *Lua_suffixes [] =
{ "lua", "LUA", NULL };
static void
print_version (void)
{
- /* Makes it easier to update automatically. */
- char emacs_copyright[] = "Copyright (C) 2012 Free Software Foundation, Inc.";
+ char emacs_copyright[] = COPYRIGHT;
printf ("%s (%s %s)\n", (CTAGS) ? "ctags" : "etags", EMACS_NAME, VERSION);
puts (emacs_copyright);
printf ("Usage: %s [options] [[regex-option ...] file-name] ...\n\
\n\
These are the options accepted by %s.\n", progname, progname);
- if (NO_LONG_OPTIONS)
- puts ("WARNING: long option names do not work with this executable,\n\
-as it is not linked with GNU getopt.");
- else
- puts ("You may use unambiguous abbreviations for the long option names.");
+ puts ("You may use unambiguous abbreviations for the long option names.");
puts (" A - as file name means read names from stdin (one per line).\n\
Absolute names are stored in the output file as they are.\n\
Relative ones are stored relative to the output file's directory.\n");
/* When the optstring begins with a '-' getopt_long does not rearrange the
non-options arguments to be at the end, but leaves them alone. */
- optstring = concat (NO_LONG_OPTIONS ? "" : "-",
- "ac:Cf:Il:o:r:RSVhH",
- (CTAGS) ? "BxdtTuvw" : "Di:");
+ optstring = concat ("-ac:Cf:Il:o:r:RSVhH",
+ (CTAGS) ? "BxdtTuvw" : "Di:",
+ "");
while ((opt = getopt_long (argc, argv, optstring, longopts, NULL)) != EOF)
switch (opt)
/*
* Perl support
* Perl sub names: /^sub[ \t\n]+[^ \t\n{]+/
+ * /^use constant[ \t\n]+[^ \t\n{=,;]+/
* Perl variable names: /^(my|local).../
* Original code by Bart Robinson <lomew@cs.utah.edu> (1995)
* Additions by Michael Ernst <mernst@alum.mit.edu> (1997)
- * Ideas by Kai Großjohann <Kai.Grossjohann@CS.Uni-Dortmund.DE> (2001)
+ * Ideas by Kai Großjohann <Kai.Grossjohann@CS.Uni-Dortmund.DE> (2001)
*/
static void
Perl_functions (FILE *inf)
}
else if (LOOKING_AT (cp, "sub"))
{
- char *pos;
- char *sp = cp;
+ char *pos, *sp;
+ subr:
+ sp = cp;
while (!notinname (*cp))
cp++;
if (cp == sp)
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
free (name);
}
+ }
+ else if (LOOKING_AT (cp, "use constant")
+ || LOOKING_AT (cp, "use constant::defer"))
+ {
+ /* For hash style multi-constant like
+ use constant { FOO => 123,
+ BAR => 456 };
+ only the first FOO is picked up. Parsing across the value
+ expressions would be difficult in general, due to possible nested
+ hashes, here-documents, etc. */
+ if (*cp == '{')
+ cp = skip_spaces (cp+1);
+ goto subr;
}
- else if (globals) /* only if we are tagging global vars */
+ else if (globals) /* only if we are tagging global vars */
{
/* Skip a qualifier, if any. */
bool qual = LOOKING_AT (cp, "my") || LOOKING_AT (cp, "local");
if (dbp[0] != '(')
continue;
+ /* "(defvar foo)" is a declaration rather than a definition. */
+ if (! declarations)
+ {
+ char *p = dbp + 1;
+ if (LOOKING_AT (p, "defvar"))
+ {
+ p = skip_name (p); /* past var name */
+ p = skip_spaces (p);
+ if (*p == ')')
+ continue;
+ }
+ }
+
if (strneq (dbp+1, "def", 3) || strneq (dbp+1, "DEF", 3))
{
dbp = skip_non_spaces (dbp);
* Contents of <title>, <h1>, <h2>, <h3> are tags.
* Contents of <a name=xxx> are tags with name xxx.
*
- * Francesco Potortì, 2002.
+ * Francesco Potortì, 2002.
*/
static void
HTML_labels (FILE *inf)
/* regexfile is a file containing regexps, one per line. */
regexfp = fopen (regexfile, "r");
if (regexfp == NULL)
- {
- pfatal (regexfile);
- return;
- }
+ pfatal (regexfile);
linebuffer_init (®exbuf);
while (readline_internal (®exbuf, regexfp) > 0)
analyse_regex (regexbuf.buffer);
return cp;
}
+/* Skip any chars in the "name" class.*/
+static char *
+skip_name (char *cp)
+{
+ /* '\0' is a notinname() so loop stops there too */
+ while (! notinname (*cp))
+ cp++;
+ return cp;
+}
+
/* Print error message and exit. */
void
fatal (const char *s1, const char *s2)
static void
suggest_asking_for_help (void)
{
- fprintf (stderr, "\tTry `%s %s' for a complete list of options.\n",
- progname, NO_LONG_OPTIONS ? "-h" : "--help");
+ fprintf (stderr, "\tTry `%s --help' for a complete list of options.\n",
+ progname);
exit (EXIT_FAILURE);
}
static char *
etags_getcwd (void)
{
-#ifdef HAVE_GETCWD
int bufsize = 200;
char *path = xnew (bufsize, char);
canonicalize_filename (path);
return path;
-
-#else /* not HAVE_GETCWD */
-#if MSDOS
-
- char *p, path[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
-
- getwd (path);
-
- for (p = path; *p != '\0'; p++)
- if (*p == '\\')
- *p = '/';
- else
- *p = lowcase (*p);
-
- return strdup (path);
-#else /* not MSDOS */
- linebuffer path;
- FILE *pipe;
-
- linebuffer_init (&path);
- pipe = (FILE *) popen ("pwd 2>/dev/null", "r");
- if (pipe == NULL || readline_internal (&path, pipe) == 0)
- pfatal ("pwd");
- pclose (pipe);
-
- return path.buffer;
-#endif /* not MSDOS */
-#endif /* not HAVE_GETCWD */
}
/* Return a newly allocated string containing the file name of FILE