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* etags.c (main): use etags_getcwd for compatibility.

(etags_getcwd): new function.
This commit is contained in:
Francesco Potortì 1994-03-30 12:04:41 +00:00
parent 5fb5aa335e
commit b02c5fea90

View file

@ -28,7 +28,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
* Francesco Potorti` (pot@cnuce.cnr.it) is the current maintainer.
*/
char pot_etags_version[] = "@(#) pot revision number is 10.18";
char pot_etags_version[] = "@(#) pot revision number is 10.21";
#ifdef MSDOS
#include <fcntl.h>
@ -50,7 +50,6 @@ char pot_etags_version[] = "@(#) pot revision number is 10.18";
#include "getopt.h"
extern char *getenv ();
extern char *getcwd ();
/* Define CTAGS to make the program "ctags" compatible with the usual one.
@ -148,12 +147,13 @@ logical header_file; /* TRUE if .h file, FALSE o.w. */
/* boolean "functions" (see init) */
logical _wht[0177], _etk[0177], _itk[0177], _btk[0177];
char cwd [BUFSIZ]; /* current working directory */
char *cwd; /* current working directory */
char *outfiledir; /* directory of tagfile */
char *concat ();
char *savenstr (), *savestr ();
char *etags_index (), *etags_rindex ();
char *etags_strchr (), *etags_strrchr ();
char *etags_getcwd ();
char *relative_filename (), *absolute_filename (), *absolute_dirname ();
char *xmalloc (), *xrealloc ();
int L_isdef (), L_isquote ();
@ -367,10 +367,6 @@ names from stdin.\n\n", progname);
puts ("-T, --typedefs-and-c++\n\
Generate tag entries for C typedefs, C struct/enum/union tags,\n\
and C++ member functions.");
}
if (CTAGS)
{
puts ("-u, --update\n\
Update the tag entries for the given files, leaving tag\n\
entries for other files in place. Currently, this is\n\
@ -441,8 +437,8 @@ main (argc, argv)
switch (opt)
{
case '\0':
/* If getopt returns '\0', then it has already processed a
case 0:
/* If getopt returns 0, then it has already processed a
long-named option. We should do nothing. */
break;
@ -479,47 +475,44 @@ main (argc, argv)
print_help ();
break;
#if (!CTAGS)
/* Etags options */
case 'i':
if (CTAGS)
goto usage;
included_files[nincluded_files++] = optarg;
break;
#else /* CTAGS */
/* Ctags options. */
case 'B':
searchar = '?';
if (!CTAGS) goto usage;
break;
case 'F':
searchar = '/';
if (!CTAGS) goto usage;
break;
case 't':
typedefs++;
if (!CTAGS) goto usage;
break;
case 'T':
typedefs++;
typedefs_and_cplusplus++;
if (!CTAGS) goto usage;
break;
case 'u':
update++;
if (!CTAGS) goto usage;
break;
case 'v':
vgrind_style++;
/*FALLTHRU*/
case 'x':
cxref_style++;
if (!CTAGS) goto usage;
break;
case 'w':
no_warnings++;
if (!CTAGS) goto usage;
break;
#endif /* CTAGS */
default:
goto usage;
}
@ -539,7 +532,7 @@ main (argc, argv)
{
outfile = CTAGS ? "tags" : "TAGS";
}
getcwd (cwd, BUFSIZ); /* the current working directory */
cwd = etags_getcwd (); /* the current working directory */
strcat (cwd, "/");
if (streq (outfile, "-"))
{
@ -745,7 +738,7 @@ find_entries (file)
return FALSE;
}
curfile = savestr (file);
cp = etags_rindex (file, '.');
cp = etags_strrchr (file, '.');
header_file = (cp && (streq (cp + 1, "h")));
@ -904,9 +897,9 @@ pfnote (name, is_func, named, linestart, linelen, lno, cno)
/* If ctags mode, change name "main" to M<thisfilename>. */
if (CTAGS && !cxref_style && streq (name, "main"))
{
fp = etags_rindex (curfile, '/');
fp = etags_strrchr (curfile, '/');
name = concat ("M", fp == 0 ? curfile : fp + 1, "");
fp = etags_rindex (name, '.');
fp = etags_strrchr (name, '.');
if (fp && fp[1] != '\0' && fp[2] == '\0')
*fp = 0;
named = TRUE;
@ -2682,7 +2675,7 @@ TEX_funcs (fi)
charno += readline (&lb, fi);
dbp = lb.buffer;
lasthit = dbp;
while (dbp = etags_index (dbp, TEX_esc)) /* Look at each escape in line */
while (dbp = etags_strchr (dbp, TEX_esc)) /* Look at each esc in line */
{
register int i;
@ -2760,7 +2753,7 @@ TEX_decode_env (evarname, defenv)
/* Allocate a token table */
for (size = 1, p = env; p;)
if ((p = etags_index (p, ':')) && *(++p))
if ((p = etags_strchr (p, ':')) && *(++p))
size++;
/* Add 1 to leave room for null terminator. */
tab = xnew (size + 1, struct TEX_tabent);
@ -2769,7 +2762,7 @@ TEX_decode_env (evarname, defenv)
/* zero-length strings (leading ':', "::" and trailing ':') */
for (i = 0; *env;)
{
p = etags_index (env, ':');
p = etags_strchr (env, ':');
if (!p) /* End of environment string. */
p = env + strlen (env);
if (p - env > 0)
@ -2816,7 +2809,7 @@ TEX_getit (name, len)
}
/* If the text at CP matches one of the tag-defining TeX command names,
return the etags_index of that command in TEX_toktab.
return the pointer to the first occurrence of that command in TEX_toktab.
Otherwise return -1. */
/* Keep the capital `T' in `Token' for dumb truncating compilers
@ -2939,7 +2932,7 @@ substr (sub, s)
char *sub;
char *s;
{
while (*s && (s = etags_index (s, *sub)))
while (*s && (s = etags_strchr (s, *sub)))
if (prestr (sub, s))
return (TRUE);
else
@ -3036,11 +3029,11 @@ savenstr (cp, len)
* Return the ptr in sp at which the character c last
* appears; NULL if not found
*
* Identical to v7 rindex, included for portability.
* Identical to System V strrchr, included for portability.
*/
char *
etags_rindex (sp, c)
etags_strrchr (sp, c)
register char *sp, c;
{
register char *r;
@ -3059,11 +3052,11 @@ etags_rindex (sp, c)
* Return the ptr in sp at which the character c first
* appears; NULL if not found
*
* Identical to v7 index, included for portability.
* Identical to System V strchr, included for portability.
*/
char *
etags_index (sp, c)
etags_strchr (sp, c)
register char *sp, c;
{
do
@ -3114,9 +3107,43 @@ concat (s1, s2, s3)
return result;
}
/* Identical to system V getcwd, but does not need to guess
buffer size in advance. Included mostly for compatibility. */
char *
etags_getcwd ()
{
FILE *pipe;
char *buf;
int bufsize;
/* Return a newly allocated string containing the filename of FILE relative
to the absolute directory DIR (which should end with a slash). */
do
{
buf = xnew (bufsize, char);
pipe = popen ("pwd 2>/dev/null", "r");
if (pipe == NULL)
{
perror ("pwd");
exit (BAD);
}
if (fgets (buf, bufsize, pipe) == NULL)
{
perror ("pwd");
exit (BAD);
}
pclose (pipe);
bufsize *= 2;
} while (buf[strlen (buf) - 1] != '\n');
return buf;
}
/* Return a newly allocated string containing the filename
of FILE relative to the absolute directory DIR (which
should end with a slash). */
char *
relative_filename (file, dir)
@ -3137,9 +3164,9 @@ relative_filename (file, dir)
while (*fp != '/');
/* Build a sequence of "../" strings for the resulting relative filename. */
for (dp = etags_index (dp + 1, '/'), res = "";
for (dp = etags_strchr (dp + 1, '/'), res = "";
dp != NULL;
dp = etags_index (dp + 1, '/'))
dp = etags_strchr (dp + 1, '/'))
{
res = concat (res, "../", "");
}
@ -3151,7 +3178,9 @@ relative_filename (file, dir)
}
/* Return a newly allocated string containing the
absolute filename of FILE given CWD (which should end with a slash). */
absolute filename of FILE given CWD (which should
end with a slash). */
char *
absolute_filename (file, cwd)
char *file, *cwd;
@ -3164,7 +3193,7 @@ absolute_filename (file, cwd)
res = concat (cwd, file, "");
/* Delete the "/dirname/.." and "/." substrings. */
slashp = etags_index (res, '/');
slashp = etags_strchr (res, '/');
while (slashp != NULL && slashp[0] != '\0')
{
if (slashp[1] == '.')
@ -3196,15 +3225,17 @@ absolute_filename (file, cwd)
}
else
{
slashp = etags_index (slashp + 1, '/');
slashp = etags_strchr (slashp + 1, '/');
}
}
return res;
}
/* Return a newly allocated string containing the absolute filename
of dir where FILE resides given CWD (which should end with a slash). */
/* Return a newly allocated string containing the absolute
filename of dir where FILE resides given CWD (which should
end with a slash). */
char *
absolute_dirname (file, cwd)
char *file, *cwd;
@ -3212,7 +3243,7 @@ absolute_dirname (file, cwd)
char *slashp, *res;
char save;
slashp = etags_rindex (file, '/');
slashp = etags_strrchr (file, '/');
if (slashp == NULL)
return cwd;
save = slashp[1];