From 24c20239779d0ec616adde651c594c7bf08d58c7 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Tue, 19 Feb 2019 18:17:56 +0100
Subject: WIP

---
 src-old/utils.c | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 src-old/utils.c

(limited to 'src-old/utils.c')

diff --git a/src-old/utils.c b/src-old/utils.c
new file mode 100644
index 0000000..b41f344
--- /dev/null
+++ b/src-old/utils.c
@@ -0,0 +1,137 @@
+/*
+ * 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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