1 files changed, 82 insertions, 0 deletions
diff --git a/src/utilfuns/roman.c b/src/utilfuns/roman.c
new file mode 100644
index 0000000..3c6d190
--- /dev/null
+++ b/src/utilfuns/roman.c
@@ -0,0 +1,82 @@
+/*
+ * roman.c
+ * Copyright 2001 by CrossWire Bible Society
+ * 
+ * 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., 59 Temple Place - Suite 330, Boston, 
+ * MA  02111-1307, USA.
+ * 
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <roman.h>
+char isroman (const char* str) {
+	char * ch = (char*)str;
+		for (; *ch; ch++)
+		if (!strchr ("IVXLCDMivxlcdm ", *ch))
+			return 0;
+	return 1;
+}
+
+int from_rom(const char* str) {
+	int i, n = strlen(str);
+	short * num= calloc(n, sizeof(short));
+	for (i = 0; str[i]; i++) {
+		switch(str[i]) {
+		case 'i':
+		case 'I':
+			num[i] = 1;
+			break;
+		case 'v':
+		case 'V':
+			num[i] = 5;
+			break;
+		case 'x':
+		case 'X':
+			num[i] = 10;
+			break;
+		case 'l':
+		case 'L':
+			num[i] = 50;
+			break;
+		case 'c':
+		case 'C':
+			num[i] = 100;
+			break;
+		case 'd':
+		case 'D':
+			num[i] = 500;
+			break;
+		case 'm':
+		case 'M':
+			num[i] = 1000;
+			break;
+		default:
+			num[i] = 0;
+		}
+	}
+	for (i = 1; str[i]; i++) {
+		if (num[i] > num[i-1])  {
+			num[i] -= num[i-1];
+			num[i-1] = 0;
+		}
+	}
+	n = 0;
+	for (i = 0; str[i]; i++) {
+		n += num[i];
+	}
+     free(num);
+	return n;
+}