libObjCAttr/Categories/NSRegularExpression+RFExtension.m

//
//  NSRegularExpression+RFExtension.m
//  libObjCAttr
//
//  Copyright (c) 2014 EPAM Systems, Inc. All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//  Redistributions of source code must retain the above copyright notice, this
//  list of conditions and the following disclaimer.
//  Redistributions in binary form must reproduce the above copyright notice, this
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//  Neither the name of the EPAM Systems, Inc.  nor the names of its contributors
//  may be used to endorse or promote products derived from this software without
//  specific prior written permission.
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#import "NSRegularExpression+RFExtension.h"


@implementation NSRegularExpression (RFExtension)

+ (NSRegularExpression *)RF_regexFromString:(NSString *)regexString {
    
    return [NSRegularExpression regularExpressionWithPattern:regexString options:0 error:nil];
}

+ (NSString *)RF_stringByReplacingRegex:(NSString *)regexString withTemplate:(NSString *)template inString:(NSString *)sourceString {
    NSRegularExpression *regex = [NSRegularExpression RF_regexFromString:regexString];
    
    return [regex stringByReplacingMatchesInString:sourceString options:0 range:NSMakeRange(0, [sourceString length]) withTemplate:template];
}

+ (void)RF_replaceRegex:(NSString *)regexString withTemplate:(NSString *)template inString:(NSMutableString *)sourceString {
    NSRegularExpression *regex = [NSRegularExpression RF_regexFromString:regexString];
    
    [regex replaceMatchesInString:sourceString options:0 range:NSMakeRange(0, [sourceString length]) withTemplate:template];
}

+ (NSUInteger)RF_numberOfMatchesToRegex:(NSString *)regexString inString:(NSString *)sourceString {
    NSRegularExpression *regex = [NSRegularExpression RF_regexFromString:regexString];
    
    return [regex numberOfMatchesInString:sourceString options:0 range:NSMakeRange(0, [sourceString length])];
}

@end