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/* File filename.c
* January 16, 2021
* By Jessica Mink, Harvard-Smithsonian Center for Astrophysics
* Send bug reports to jmink@cfa.harvard.edu
Copyright (C) 2006-2021
Smithsonian Astrophysical Observatory, Cambridge, MA USA
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 2
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
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; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
static int verbose = 0; /* Verbose/debugging flag */
static int getroot = 0; /* Return file root */
static int nslash = 1; /* Start this many slashes from end of name */
static int keepdir = 0; /* Return directory(ies) as part of name */
static int nonl = 0; /* Output null at end of string for scripting */
static int newline = 0; /* Output linefeed at end of string for listing */
static void usage();
int
main (ac, av)
int ac;
char **av;
{
char *fn, *fn0;
char *str;
char *name;
char *is[10];
char *endroot;
int i, n;
/* crack arguments */
for (av++; --ac > 0 && *(str = *av) == '-'; av++) {
char c;
while ((c = *++str))
switch (c) {
case '/': /* Keep one more directory in path */
nslash++;
break;
case 'e': /* Append endline after each file name */
newline++;
break;
case 'n': /* Prepend directory to name with . */
keepdir++;
nslash++;
break;
case 'r': /* Return root of filename */
getroot++;
break;
case 'v': /* More verbosity */
verbose++;
break;
default:
usage();
break;
}
}
/* There are ac remaining file names starting at av[0] */
if (ac == 0)
usage ();
if (nslash > 10)
nslash = 10;
while (ac-- > 0) {
fn0 = *av++;
fn = fn0;
for (n = 0; n < 10; n++)
is[n] = NULL;
if (verbose)
printf ("%s -> ", fn);
endroot = NULL;
for (n = 0; n < nslash; n++) {
name = strrchr (fn, '/');
if (n == 0 && getroot) {
if (name != NULL)
endroot = strrchr (name, '.');
else
endroot = strrchr (fn, '.');
if (endroot != NULL) {
*endroot = (char) 0;
if (getroot > 1) {
if (name != NULL)
endroot = strrchr (name, '.');
else
endroot = strrchr (fn, '.');
if (endroot != NULL)
*endroot = (char) 0;
}
}
}
if (name == NULL) {
name = fn;
break;
}
else {
if (name > fn0) {
is[n] = name;
if (keepdir)
*name = '.';
else
*name = (char) 0;
}
else
break;
name = name + 1;
if (verbose) {
for (i = 0; i < nslash; i++) {
if (is[i] != NULL) {
if (keepdir)
*(is[i]) = '.';
else
*(is[i]) = '/';
}
}
printf ("%s", name);
for (i = 0; i < nslash; i++) {
if (is[i] != NULL) {
if (keepdir)
*(is[i]) = '.';
else
*(is[i]) = (char) 0;
}
}
}
}
}
for (n = 0; n < nslash; n++) {
if (is[n] != NULL) {
if (keepdir)
*(is[n]) = '.';
else
*(is[n]) = '/';
}
}
printf ("%s", name);
if (newline)
printf ("\n");
}
if (nonl)
printf ("%c",(char)0);
else
printf ("\n");
return (0);
}
static void
usage ()
{
fprintf (stderr,"FILENAME: Drop directory from pathname\n");
fprintf(stderr,"Usage: filename [-v/] path1 path2 path3 ...\n");
fprintf(stderr," -/: Keep one more end directory for each /\n");
fprintf(stderr," -e: Append endline after each file name\n");
fprintf(stderr," -n: Prepend one more end directory with .\n");
fprintf(stderr," -r: Root of file name (before first .)\n");
fprintf(stderr," -v: Verbose\n");
fprintf(stderr," -z: Add null instead of nl to output for scripting\n");
exit (1);
}
/* Aug 3 1998 New program
*
* Jun 21 2006 Clean up code
*
* Jun 1 2007 Add option to keep directories up from file
* Jun 11 2007 Add -r option to keep only root of file name (before first .)
*
* Feb 6 2008 Add -n option to keep directory with "."
* Feb 6 2008 Allow more than one -r command
*
* Aug 18 2020 Add -z option to end name with null instead of newline
*
* Jan 16 2020 Add -e option to append newline after each output string
*/
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