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/*
* utils.c
*
* Copyright © 2013-2018 Thomas White <taw@bitwiz.org.uk>
*
* This file is part of Colloquium.
*
* Colloquium 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 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "utils.h"
void chomp(char *s)
{
size_t i;
if ( !s ) return;
for ( i=0; i<strlen(s); i++ ) {
if ( (s[i] == '\n') || (s[i] == '\r') ) {
s[i] = '\0';
return;
}
}
}
int safe_strcmp(const char *a, const char *b)
{
if ( a == NULL ) return 1;
if ( b == NULL ) return 1;
return strcmp(a, b);
}
int parse_double(const char *a, float v[2])
{
int nn;
nn = sscanf(a, "%fx%f", &v[0], &v[1]);
if ( nn != 2 ) {
fprintf(stderr, _("Invalid size '%s'\n"), a);
return 1;
}
return 0;
}
int parse_tuple(const char *a, float v[4])
{
int nn;
nn = sscanf(a, "%f,%f,%f,%f", &v[0], &v[1], &v[2], &v[3]);
if ( nn != 4 ) {
fprintf(stderr, _("Invalid tuple '%s'\n"), a);
return 1;
}
return 0;
}
static LengthUnits get_units(const char *t)
{
size_t len = strlen(t);
if ( t[len-1] == 'f' ) return UNITS_FRAC;
if ( t[len-1] == 'u' ) return UNITS_SLIDE;
fprintf(stderr, _("Invalid units in '%s'\n"), t);
return UNITS_SLIDE;
}
int parse_dims(const char *opt, double *wp, double *hp,
LengthUnits *wup, LengthUnits *hup,
double *xp, double *yp)
{
char *w;
char *h;
char *x;
char *y;
char *check;
w = strdup(opt);
h = index(w, 'x');
h[0] = '\0'; h++;
x = index(h, '+');
if ( x == NULL ) goto invalid;
x[0] = '\0'; x++;
y = index(x, '+');
if ( x == NULL ) goto invalid;
y[0] = '\0'; y++;
*wp = strtod(w, &check);
if ( check == w ) goto invalid;
*wup = get_units(w);
*hp = strtod(h, &check);
if ( check == h ) goto invalid;
*hup = get_units(h);
*xp= strtod(x, &check);
if ( check == x ) goto invalid;
*yp = strtod(y, &check);
if ( check == y ) goto invalid;
return 0;
invalid:
fprintf(stderr, _("Invalid dimensions '%s'\n"), opt);
return 1;
}
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