File: sp2char.c

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/* File sp2char.c
 * April 3, 2006
 * By Jessica Mink Harvard-Smithsonian Center for Astrophysics)
 * Send bug reports to jmink@cfa.harvard.edu

   Copyright (C) 2006 
   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 <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <math.h>
#include "libwcs/fitsfile.h"

#define MAXKWD 50
#define MAXFILES 1000
static int maxnkwd = MAXKWD;

static void usage();

static int verbose = 0;		/* verbose/debugging flag */
static int version = 0;		/* If 1, print only program name and version */
static char spchar = '_';

static char *RevMsg = "SP2CHAR WCSTools 3.9.7, 26 April 2022, Jessica Mink (jmink@cfa.harvard.edu)";

int
main (ac, av)
int ac;
char **av;
{
    char *str;
    char **kwd;
    int nkwd = 0;
    int ikwd;

    kwd = (char **)calloc (maxnkwd, sizeof(char *));
    for (ikwd = 0; ikwd < maxnkwd; ikwd++) {
	kwd[ikwd] = NULL;
	}

    /* Check for help or version command first */
    str = *(av+1);
    if (!str || !strcmp (str, "help") || !strcmp (str, "-help"))
	usage();
    if (!strcmp (str, "version") || !strcmp (str, "-version")) {
	version = 1;
	usage();
	}

    /* crack arguments */
    for (av++; --ac > 0; av++) {
	if (*(str = *av) == '-') {
	    char c;
	    while ((c = *++str))
	    switch (c) {

		case 's':	/* Replace this character with spaces in string arguments */
		    if (ac > 1) {
			spchar= *++av[0];
			ac--;
			}
		    break;

		case 'v':	/* more verbosity */
		    verbose++;
		    break;

		default:
		    usage();
		    break;
		}
	    }

	/* String component */
	else {
	    if (nkwd >= maxnkwd) {
		maxnkwd = maxnkwd * 2;
		kwd = (char **) realloc ((void *)kwd, maxnkwd);
		}
	    kwd[nkwd] = *av;
	    nkwd++;
	    }
	}

    if (nkwd <= 0)
	usage ();
    else if (nkwd <= 0) {
	fprintf (stderr, "SP2CHAR: no string components specified\n");
	exit (1);
	}

    for (ikwd = 0; ikwd < nkwd; ikwd++) {
	printf ("%s", kwd[ikwd]);
	if (ikwd < nkwd - 1)
	    printf ("_");
	else
	    printf ("\n");
	}

    free (kwd);

    return (0);
}

static void
usage ()
{
    fprintf (stderr,"%s\n",RevMsg);
    if (version)
	exit (-1);
    fprintf (stderr,"Replaces spaces in string with specified character (def=_)\n");
    fprintf(stderr,"Usage: [-v][-s char] string [string2][...][string n]\n");
    fprintf(stderr,"  -s [char]: Replace spaces with this character on output\n");
    fprintf(stderr,"  -v: Verbose\n");
    exit (1);
}

/* Jan  8 2002	New program
 *
 * Apr  3 2006	Declare main to be int
 */