X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/d02fe47dd3be7310d1bfd6e802d1fac2ea5f5e9d..bf61b6ada1ac5dbe0cde5de361d68b6ec2886c01:/lib-src/etags.c
diff --git a/lib-src/etags.c b/lib-src/etags.c
index 2fe0c6314f..26b8a05fd7 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -34,10 +34,10 @@ Copyright (C) 1984, 1987, 1988, 1989, 1993, 1994, 1995, 1998, 1999,
This file is not considered part of GNU Emacs.
-This program is free software; you can redistribute it and/or modify
+This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -45,9 +45,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with this program. If not, see . */
/* NB To comply with the above BSD license, copyright information is
@@ -61,14 +59,14 @@ University of California, as described above. */
/*
* Authors:
- * 1983 Ctags originally by Ken Arnold.
- * 1984 Fortran added by Jim Kleckner.
- * 1984 Ed Pelegri-Llopart added C typedefs.
- * 1985 Emacs TAGS format by Richard Stallman.
- * 1989 Sam Kendall added C++.
+ * 1983 Ctags originally by Ken Arnold.
+ * 1984 Fortran added by Jim Kleckner.
+ * 1984 Ed Pelegri-Llopart added C typedefs.
+ * 1985 Emacs TAGS format by Richard Stallman.
+ * 1989 Sam Kendall added C++.
* 1992 Joseph B. Wells improved C and C++ parsing.
- * 1993 Francesco Potortì reorganised C and C++.
- * 1994 Line-by-line regexp tags by Tom Tromey.
+ * 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.
*
@@ -77,11 +75,11 @@ University of California, as described above. */
/*
* If you want to add support for a new language, start by looking at the LUA
- * language, which is the simplest. Alternatively, consider shipping a
- * configuration file containing regexp definitions for etags.
+ * language, which is the simplest. Alternatively, consider distributing etags
+ * together with a configuration file containing regexp definitions for etags.
*/
-char pot_etags_version[] = "@(#) pot revision number is 17.38";
+char pot_etags_version[] = "@(#) pot revision number is 17.38.1.4";
#define TRUE 1
#define FALSE 0
@@ -174,13 +172,8 @@ char pot_etags_version[] = "@(#) pot revision number is 17.38";
extern void exit __P((int));
extern void free __P((void *));
extern void *memmove __P((void *, const void *, unsigned long));
-# ifdef VMS
-# define EXIT_SUCCESS 1
-# define EXIT_FAILURE 0
-# else /* no VMS */
-# define EXIT_SUCCESS 0
-# define EXIT_FAILURE 1
-# endif
+# define EXIT_SUCCESS 0
+# define EXIT_FAILURE 1
# endif
#endif /* !WINDOWSNT */
@@ -899,7 +892,7 @@ etags --help --lang=ada.");
# define EMACS_NAME "standalone"
#endif
#ifndef VERSION
-# define VERSION "17.38"
+# define VERSION "17.38.1.4"
#endif
static void
print_version ()
@@ -1095,131 +1088,6 @@ Relative ones are stored relative to the output file's directory.\n");
exit (EXIT_SUCCESS);
}
-
-#ifdef VMS /* VMS specific functions */
-
-#define EOS '\0'
-
-/* This is a BUG! ANY arbitrary limit is a BUG!
- Won't someone please fix this? */
-#define MAX_FILE_SPEC_LEN 255
-typedef struct {
- short curlen;
- char body[MAX_FILE_SPEC_LEN + 1];
-} vspec;
-
-/*
- v1.05 nmm 26-Jun-86 fn_exp - expand specification of list of file names
- returning in each successive call the next file name matching the input
- spec. The function expects that each in_spec passed
- to it will be processed to completion; in particular, up to and
- including the call following that in which the last matching name
- is returned, the function ignores the value of in_spec, and will
- only start processing a new spec with the following call.
- If an error occurs, on return out_spec contains the value
- of in_spec when the error occurred.
-
- With each successive file name returned in out_spec, the
- function's return value is one. When there are no more matching
- names the function returns zero. If on the first call no file
- matches in_spec, or there is any other error, -1 is returned.
-*/
-
-#include
-#include
-#define OUTSIZE MAX_FILE_SPEC_LEN
-static short
-fn_exp (out, in)
- vspec *out;
- char *in;
-{
- static long context = 0;
- static struct dsc$descriptor_s o;
- static struct dsc$descriptor_s i;
- static bool pass1 = TRUE;
- long status;
- short retval;
-
- if (pass1)
- {
- pass1 = FALSE;
- o.dsc$a_pointer = (char *) out;
- o.dsc$w_length = (short)OUTSIZE;
- i.dsc$a_pointer = in;
- i.dsc$w_length = (short)strlen(in);
- i.dsc$b_dtype = DSC$K_DTYPE_T;
- i.dsc$b_class = DSC$K_CLASS_S;
- o.dsc$b_dtype = DSC$K_DTYPE_VT;
- o.dsc$b_class = DSC$K_CLASS_VS;
- }
- if ((status = lib$find_file(&i, &o, &context, 0, 0)) == RMS$_NORMAL)
- {
- out->body[out->curlen] = EOS;
- return 1;
- }
- else if (status == RMS$_NMF)
- retval = 0;
- else
- {
- strcpy(out->body, in);
- retval = -1;
- }
- lib$find_file_end(&context);
- pass1 = TRUE;
- return retval;
-}
-
-/*
- v1.01 nmm 19-Aug-85 gfnames - return in successive calls the
- name of each file specified by the provided arg expanding wildcards.
-*/
-static char *
-gfnames (arg, p_error)
- char *arg;
- bool *p_error;
-{
- static vspec filename = {MAX_FILE_SPEC_LEN, "\0"};
-
- switch (fn_exp (&filename, arg))
- {
- case 1:
- *p_error = FALSE;
- return filename.body;
- case 0:
- *p_error = FALSE;
- return NULL;
- default:
- *p_error = TRUE;
- return filename.body;
- }
-}
-
-#ifndef OLD /* Newer versions of VMS do provide `system'. */
-system (cmd)
- char *cmd;
-{
- error ("%s", "system() function not implemented under VMS");
-}
-#endif
-
-#define VERSION_DELIM ';'
-char *massage_name (s)
- char *s;
-{
- char *start = s;
-
- for ( ; *s; s++)
- if (*s == VERSION_DELIM)
- {
- *s = EOS;
- break;
- }
- else
- *s = lowcase (*s);
- return start;
-}
-#endif /* VMS */
-
int
main (argc, argv)
@@ -1233,9 +1101,6 @@ main (argc, argv)
int current_arg, file_count;
linebuffer filename_lb;
bool help_asked = FALSE;
-#ifdef VMS
- bool got_err;
-#endif
char *optstring;
int opt;
@@ -1386,7 +1251,7 @@ main (argc, argv)
}
if (tagfile == NULL)
- tagfile = CTAGS ? "tags" : "TAGS";
+ tagfile = savestr (CTAGS ? "tags" : "TAGS");
cwd = etags_getcwd (); /* the current working directory */
if (cwd[strlen (cwd) - 1] != '/')
{
@@ -1394,12 +1259,16 @@ main (argc, argv)
cwd = concat (oldcwd, "/", "");
free (oldcwd);
}
- /* Relative file names are made relative to the current directory. */
+
+ /* Compute base directory for relative file names. */
if (streq (tagfile, "-")
|| strneq (tagfile, "/dev/", 5))
- tagfiledir = cwd;
+ tagfiledir = cwd; /* relative file names are relative to cwd */
else
- tagfiledir = absolute_dirname (tagfile, cwd);
+ {
+ canonicalize_filename (tagfile);
+ tagfiledir = absolute_dirname (tagfile, cwd);
+ }
init (); /* set up boolean "functions" */
@@ -1443,21 +1312,7 @@ main (argc, argv)
analyse_regex (argbuffer[i].what);
break;
case at_filename:
-#ifdef VMS
- while ((this_file = gfnames (argbuffer[i].what, &got_err)) != NULL)
- {
- if (got_err)
- {
- error ("can't find file %s\n", this_file);
- argc--, argv++;
- }
- else
- {
- this_file = massage_name (this_file);
- }
-#else
this_file = argbuffer[i].what;
-#endif
/* Input file named "-" means read file names from stdin
(one per line) and use them. */
if (streq (this_file, "-"))
@@ -1470,9 +1325,6 @@ main (argc, argv)
}
else
process_file_name (this_file, lang);
-#ifdef VMS
- }
-#endif
break;
case at_stdin:
this_file = argbuffer[i].what;
@@ -1572,7 +1424,7 @@ get_compressor_from_suffix (file, extptr)
compressor *compr;
char *slash, *suffix;
- /* This relies on FN to be after canonicalize_filename,
+ /* File has been processed by canonicalize_filename,
so we don't need to consider backslashes on DOS_NT. */
slash = etags_strrchr (file, '/');
suffix = etags_strrchr (file, '.');
@@ -1801,8 +1653,8 @@ process_file_name (file, lang)
pfatal (file);
cleanup:
- if (compressed_name) free (compressed_name);
- if (uncompressed_name) free (uncompressed_name);
+ free (compressed_name);
+ free (uncompressed_name);
last_node = NULL;
curfdp = NULL;
return;
@@ -2181,8 +2033,7 @@ free_tree (np)
{
register node *node_right = np->right;
free_tree (np->left);
- if (np->name != NULL)
- free (np->name);
+ free (np->name);
free (np->regex);
free (np);
np = node_right;
@@ -2197,11 +2048,11 @@ static void
free_fdesc (fdp)
register fdesc *fdp;
{
- if (fdp->infname != NULL) free (fdp->infname);
- if (fdp->infabsname != NULL) free (fdp->infabsname);
- if (fdp->infabsdir != NULL) free (fdp->infabsdir);
- if (fdp->taggedfname != NULL) free (fdp->taggedfname);
- if (fdp->prop != NULL) free (fdp->prop);
+ free (fdp->infname);
+ free (fdp->infabsname);
+ free (fdp->infabsdir);
+ free (fdp->taggedfname);
+ free (fdp->prop);
free (fdp);
}
@@ -2846,8 +2697,7 @@ popclass_above (bracelev)
nl >= 0 && cstack.bracelev[nl] >= bracelev;
nl--)
{
- if (cstack.cname[nl] != NULL)
- free (cstack.cname[nl]);
+ free (cstack.cname[nl]);
cstack.nl = nl;
}
}
@@ -5523,8 +5373,7 @@ Prolog_functions (inf)
last[len] = '\0';
}
}
- if (last != NULL)
- free (last);
+ free (last);
}
@@ -5702,8 +5551,7 @@ Erlang_functions (inf)
last[len] = '\0';
}
}
- if (last != NULL)
- free (last);
+ free (last);
}
@@ -6033,7 +5881,7 @@ add_regex (regexp_pattern, lang)
else
re_set_syntax (RE_SYNTAX_EMACS);
- err = re_compile_pattern (pat, strlen (regexp_pattern), patbuf);
+ err = re_compile_pattern (pat, strlen (pat), patbuf);
if (multi_line)
free (pat);
if (err != NULL)
@@ -6377,7 +6225,7 @@ readline (lbp, stream)
discard_until_line_directive = FALSE; /* found it */
name = lbp->buffer + start;
*endp = '\0';
- canonicalize_filename (name); /* for DOS */
+ canonicalize_filename (name);
taggedabsname = absolute_filename (name, tagfiledir);
if (filename_is_absolute (name)
|| filename_is_absolute (curfdp->infname))
@@ -6880,7 +6728,6 @@ absolute_dirname (file, dir)
char *slashp, *res;
char save;
- canonicalize_filename (file);
slashp = etags_strrchr (file, '/');
if (slashp == NULL)
return savestr (dir);
@@ -6905,27 +6752,38 @@ filename_is_absolute (fn)
);
}
-/* Translate backslashes into slashes. Works in place. */
+/* Upcase DOS drive letter and collapse separators into single slashes.
+ Works in place. */
static void
canonicalize_filename (fn)
register char *fn;
{
+ register char* cp;
+ char sep = '/';
+
#ifdef DOS_NT
/* Canonicalize drive letter case. */
if (fn[0] != '\0' && fn[1] == ':' && ISLOWER (fn[0]))
fn[0] = upcase (fn[0]);
- /* Convert backslashes to slashes. */
- for (; *fn != '\0'; fn++)
- if (*fn == '\\')
- *fn = '/';
-#else
- /* No action. */
- fn = NULL; /* shut up the compiler */
+
+ sep = '\\';
#endif
+
+ /* Collapse multiple separators into a single slash. */
+ for (cp = fn; *cp != '\0'; cp++, fn++)
+ if (*cp == sep)
+ {
+ *fn = '/';
+ while (cp[1] == sep)
+ cp++;
+ }
+ else
+ *fn = *cp;
+ *fn = '\0';
}
-/* Initialize a linebuffer for use */
+/* Initialize a linebuffer for use. */
static void
linebuffer_init (lbp)
linebuffer *lbp;