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/*
** NSScanner+Extensions.m
**
** Copyright (c) 2005 Ludovic Marcotte
**
** Author: Ludovic Marcotte <ludovic@Sophos.ca>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library 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
** Lesser 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/>.
*/
#import <Pantomime/NSScanner+Extensions.h>
#import <Foundation/NSString.h>
#include <ctype.h>
//
//
//
@implementation NSScanner (PantomimeScannerExtensions)
- (BOOL) scanUnsignedInt: (unsigned int *) theValue
{
NSString *s;
NSUInteger l1, l2, len;
unsigned int d, v;
l1 = l2 = [self scanLocation];
s = [self string];
len = [s length];
while (l1 < len)
{
if (isdigit([s characterAtIndex: l1]))
{
l2 = l1;
while (l2 < len && isdigit([s characterAtIndex: l2]))
{
l2++;
}
break;
}
l1++;
}
if (l2 <= l1)
{
[self setScanLocation: l1+1];
return NO;
}
[self setScanLocation: (l2+1 > len ? len : l2+1)];
v = 0;
d = 1;
l2--;
while (l2 >= l1)
{
v += (([s characterAtIndex: l2]-48)*d);
d *= 10;
l2--;
}
*theValue = v;
return YES;
}
@end
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