iPhone - UIWebViewを使用してJavaScriptと正規表現を評価する

Question

私のiPhoneプロジェクトでは、Javascript関数を使用するか正規表現を使用して文字列を検証する必要がありました。このコードはjQueryのコードからJavaScriptと正規表現を使用して試験した

： http://docs.jquery.com/Plugins/Validation/Methods/email http://docs.jquery.com/Plugins/Validation/Methods/url http://docs.jquery.com/Plugins/Validation/Methods/date ます。http：//docs.jquery。 COM /プラグイン/検証/メソッド/ dateISO http://docs.jquery.com/Plugins/Validation/Methods/number http://docs.jquery.com/Plugins/Validation/Methods/digits http://docs.jquery.com/Plugins/Validation/Methods/creditcard

私は完全なソリューションを検索し、おそらくそれを逃したので、私はすることを決めましたNSString + JavaScript + RegExを実装してください。

私はここで

Reuven

Answer 1

は、コードリストは、あるあなたが見つけることを願って...場合には、それは誰にも価値があります、以下の答えとして、それを掲載しましたが便利です：

//

@interface NSString(JavaScript_RegEx) 

// Built-in rules 
+ (NSArray*) emailRule; 
+ (NSArray*) urlRule; 
+ (NSArray*) dateRule; 
+ (NSArray*) dateISORule; 
+ (NSArray*) numberRule; 
+ (NSArray*) digitsRule; 
+ (NSArray*) creditcardRule; 

- (NSString*) javascriptValue; 
- (NSString*) regexTestValue:(NSString*)value; 

@end 

// 01 // // NSStringの+のJavaScript + RegEx.h // NSStringの+のJavaScript + RegEx.m //

#import "NSString+JavaScript+RegEx.h" 

@implementation NSString(JavaScript_RegEx) 

static NSString* kUIWebViewWrapperForJS = @"(function() {\ntry {\n%@\n}\ncatch (err)\n{\nreturn err;\n}\n})();"; 
static NSString* kJSWrapperForRegEx = @"re = new RegExp(/%@/); return re.test('%@')"; 

+ (NSArray*) emailRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:0], // 0=RegEx 
      @"^((([a-z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])+(\\.([a-z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(\\\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.)+(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.?$", 
      @"Please enter a valid email address.", 
      nil]; 
} 

+ (NSArray*) urlRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:0], // 0=RegEx 
      @"^(https?|ftp):\\/\\/(((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:)*@)?(((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]))|((([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.)+(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.?)(:\\d*)?)(\\/((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)+(\\/(([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)*)*)?)?(\\?((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)|[\\uE000-\\uF8FF]|\\/|\\?)*)?(\\#((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)|\\/|\\?)*)?$", 
      @"Please enter a valid URL.", 
      nil]; 
} 

+ (NSArray*) dateRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:1], // 1=JS 
      @"return !/Invalid|NaN/.test(new Date(\"%@\"));", // expect a date 
      @"Please enter a valid date.", 
      nil]; 
} 

+ (NSArray*) dateISORule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:0], // 0=RegEx 
      @"^\\d{4}[\\/-]\\d{1,2}[\\/-]\\d{1,2}$", 
      @"Please enter a valid date.", 
      nil]; 
} 

+ (NSArray*) numberRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:0], // 0=RegEx 
      @"^-?(?:\\d+|\\d{1,3}(?:,\\d{3})+)(?:\\.\\d+)?$", 
      @"Please enter a valid number.", 
      nil]; 
} 

+ (NSArray*) digitsRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:0], // 0=RegEx 
      @"^\\d+$", 
      @"Please enter only digits.", 
      nil]; 
} 

+ (NSArray*) creditcardRule { 
    return [NSArray arrayWithObjects:[NSNumber numberWithInt:1], // 1=JS 
      @"// accept only digits and dashes\n" 
      "var value = \"%@\";\n" 
      "if (/[^0-9-]+/.test(value))\n" 
      " return false;\n" 
      "var nCheck = 0, nDigit = 0, bEven = false;\n" 
      "value = value.replace(/\\D/g, \"\");\n" 
      "for (var n = value.length - 1; n >= 0; n--) {\n" 
      " var cDigit = value.charAt(n);\n" 
      " var nDigit = parseInt(cDigit, 10);\n" 
      " if (bEven) {\n" 
      " if ((nDigit *= 2) > 9)\n" 
      "  nDigit -= 9;\n" 
      " }\n" 
      " nCheck += nDigit;\n" 
      " bEven = !bEven;\n" 
      "}\n" 
      "return (nCheck %% 10) == 0;", 
      @"Please enter a valid credit card number.", 
      nil]; 
} 

- (NSString*) javascriptValue { 
    NSString* jsForWebView = [NSString stringWithFormat:kUIWebViewWrapperForJS, self]; // convert to "JS-edible-by-UIWebView" 

    UIWebView *wb = [[[UIWebView alloc] init] autorelease]; 
    //NSLog(@"%s\n%@\n", __FUNCTION__, jsForWebView); 
    NSString* result = [wb stringByEvaluatingJavaScriptFromString:jsForWebView]; 
    return result; 
} 

- (NSString*) regexTestValue:(NSString*)value { 
    NSString* javascriptWrappedRegEx = [NSString stringWithFormat:kJSWrapperForRegEx, self, value]; 
    NSString* result = [javascriptWrappedRegEx javascriptValue]; 
    return result; 
} 

@end 

お楽しみください、Reuven

Answer 2

では、次のUIWebViewインスタンスメソッドを試してみましたか？

- (NSString *) stringByEvaluatingJavaScriptFromString: (NSString *) script