X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fargs.h;h=ac8586c5ab7ab7dc96af31cd76c6590b2bd796e7;hb=714b122c75a757dcd1ef9a631aa209a298e650d7;hp=2d5c6615175ee0663968aa17fd3b5e067ebbd2dd;hpb=b4c1a60dc1d38ee55f2fc58cbfc3a9f5c613101c;p=swftools.git

diff --git a/lib/args.h b/lib/args.h
index 2d5c661..ac8586c 100644
--- a/lib/args.h
+++ b/lib/args.h
@@ -4,8 +4,20 @@
    Part of the swftools package.
 
    Copyright (c) 2001 Matthias Kramm <kramm@quiss.org> 
+ 
+   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 file is distributed under the GPL, see file COPYING for details */
+   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 */
 
 #ifndef __args_h__
 #define __args_h__
@@ -115,4 +127,79 @@ int args_long2shortoption(struct options_t*options, char*name, char*val)
     exit(1);
 }
 
+/* check whether the value t is in a given range.
+  examples: 3 is in range 1-10: true
+            7 is in range 2-4,6,8-10: false
+	    9 is in range 1,2,3-12: true
+*/
+char is_in_range(int t, char*irange)
+{
+    char*pos = irange;
+    char*digits;
+    int num;
+    char range = 0;
+    int last=0;
+    char tmp;
+
+    if(!irange)  // no range resembles (-OO,OO)
+	return 1;
+
+    while(*pos)
+    {
+	while(*pos == ' ' || *pos == '\r' || *pos == '\n' || *pos == '\t')
+	    pos++;
+
+	digits = pos;
+	while(*digits>='0' && *digits<='9')
+	    digits++;
+	if(digits == pos) {
+	    fprintf(stderr, "Error: \"%s\" is not a valid format (digit expected)\n",irange);
+	    exit(1);
+        }
+	
+	tmp=*digits;*digits=0;
+	num = atoi(pos);
+	*digits=tmp;
+	pos = digits;
+
+	while(*pos == ' ' || *pos == '\r' || *pos == '\n' || *pos == '\t')
+	    pos++;
+
+	if(range && last<=t && num>=t)
+	    return 1;
+	if(range) {
+	    range = 0;
+	    if(*pos)
+	     pos ++;
+	    continue;
+	}
+
+	if(*pos=='-')
+	{
+	    if(range) {
+		fprintf(stderr, "Error: \"%s\" is not a valid format (too many '-'s)\n",irange);
+		exit(1);
+	    }
+	    last = num;
+	    range = 1;
+	    if(*pos)
+	     pos ++;
+	    continue;
+	} 
+	else 
+	{
+	    /* if it isn't a '-', we assume it is a seperator like
+	       ',', ';', ':', whatever. */
+	    if(t == num)
+		return 1;
+	    if(*pos)
+	     pos ++;
+	    continue;
+	}
+    }
+    if(range && last<=t)
+	return 1;
+    return 0;
+}
+
 #endif //__args_h__