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* http://github.com/kennytm/iphone-private-frameworks/blob/master/AppSupport/CPRegularExpression.h | * http://github.com/kennytm/iphone-private-frameworks/blob/master/AppSupport/CPRegularExpression.h | ||
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Revision as of 00:35, 7 September 2013
CPRegularExpression is a wrapper around the POSIX regex.h library. Example use:
NSString* test = [NSString stringWithContentsOfFile:@"TestFile.txt"];
CPRegularExpression* re = [CPRegularExpression regularExpressionWithString:@"([-_[:alpha:]]+)=['\"]?([^'\">[:blank:]]*)['\"]?"];
NSRange curRange = NSMakeRange(0, [test length]);
NSUInteger subexprCount = [re numberOfSubexpressions];
NSRange subexprs[subexprCount];
while (1) {
NSRange newRange = [re matchedRangeForString:test range:curRange subexpressionRanges:subexprs count:subexprCount];
if (newRange.location == NSNotFound)
break;
else {
NSLog(@"%@ -> %@", [test substringWithRange:subexprs[0]], [test substringWithRange:subexprs[1]]);
// Changing the range alone is buggy.
test = [test substringFromIndex:newRange.location + newRange.length];
curRange.length = [test length];
}
}
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