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轉飛業達--正則表達式替換文本

NSError *error;
NSString *regexStr = @"href\\s*=\\s*([\'\"\\s]([^\"\']*\\.(?:doc|docx|ppt|pptx|xls|pdf.html|pdf|xlsx))[\'\"])";
NSRegularExpression *attachmentExpression = [NSRegularExpression regularExpressionWithPattern:regexStr 
options:NSRegularExpressionCaseInsensitive error:&error];

content = [attachmentExpression stringByReplacingMatchesInString:content
                                                              options:0                                               
                                            range:NSMakeRange(0, [content length])
withTemplate:@"href='javascript:void(0);' onclick='myHandler($1)'"];