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/* File fileroot.c
* August 17, 2018
* By Jessica Mink, Harvard-Smithsonian Center for Astrophysics
* Send bug reports to jmink@cfa.harvard.edu
Copyright (C) 2000-2018
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 replace = 0; /* character replacement flag */
static int extn = 0; /* double extension flag */
static char c1, c2;
static void usage();
int
main (ac, av)
int ac;
char **av;
{
char *fn;
char *str;
char *ext, *extc;
int i, lroot, extl;
/* crack arguments */
for (av++; --ac > 0 && *(str = *av) == '-'; av++) {
char c;
while ((c = *++str))
switch (c) {
case 'v': /* more verbosity */
verbose++;
break;
case 'r': /* replace next character with one after it */
if (ac < 3)
usage();
av++;
c1 = *av[0];
ac--;
av++;
c2 = *av[0];
ac--;
replace++;
break;
case '2': /* remove 2 extensions */
extn = 2;
break;
case '3': /* remove 3 extensions */
extn = 3;
break;
case '4': /* remove 4 extensions */
extn = 4;
break;
case '5': /* remove 5 extensions */
extn = 5;
break;
case '6': /* remove 6 extensions */
extn = 6;
break;
case 'a': /* remove all extensions */
extn = -1;
break;
default:
usage();
break;
}
}
/* There are ac remaining file names starting at av[0] */
if (ac == 0)
usage ();
while (ac-- > 0) {
fn = *av++;
if (verbose)
printf ("%s -> ", fn);
ext = strrchr (fn, ',');
if (ext != NULL)
*ext = (char) 0;
else {
ext = strrchr (fn, '.');
if (ext != NULL) {
*ext = (char) 0;
extl = extn;
while (extl > 1) {
extc = strrchr (fn, '.');
if (extc != NULL) {
*ext = '.';
*extc = (char) 0;
}
else {
extl = 1;
}
extl--;
}
}
}
if (replace) {
lroot= strlen (fn);
for (i = 0; i < lroot; i++)
if (fn[i] == c1) fn[i] = c2;
}
printf ("%s\n", fn);
}
return (0);
}
static void
usage ()
{
fprintf (stderr,"FILEROOT: Drop file name extension(s)\n");
fprintf (stderr,"Usage: fileroot file1 file2 file3 ...\n");
fprintf (stderr," fileroot -r c1 c2 file1 file2 file3 ...\n");
fprintf (stderr," fileroot -2 file1 file2 file3 ...\n");
fprintf (stderr," -r replaces c1 with c2 in file name\n");
fprintf (stderr," -n drops n extensions at once\n");
exit (1);
}
/* May 3 2000 New program
* Sep 12 2000 Truncate at comma as well as period
*
* Mar 1 2000 Add character replacement
*
* Jun 21 2006 Clean up code
*
* Jan 10 2007 Add second parentheses around character check
*
* Aug 17 2018 Add -2 to drop two-par extensions such as ".ms.fits"
*
* Jul 2 2021 Add -3 - -6 to drop more extensions
*/
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