让正则表达式更人性化

正则表达式应该是程序员的基本功，但这种符号记法并不是很人性化。VerbalExpressions 通过链式方法和更易于理解的方法名使正则表达式的书写更简单、更易读。最初的VerbalExpressions是一个JavaScript的library，不过目前已经有很多语言（Ruby、C#、Python、Java、Groovy、PHP、Haskell、C++、Objective-C）的实现版本。

https://github.com/VerbalExpressions/JSVerbalExpressions

Examples

Testing if we have a valid URL

// Create an example of how to test for correctly formed URLs
var tester = VerEx()
            .startOfLine()
            .then( "http" )
            .maybe( "s" )
            .then( "://" )
            .maybe( "www." )
            .anythingBut( " " )
            .endOfLine();

// Create an example URL
var testMe = "https://www.google.com";

// Use RegExp object's native test() function
if( tester.test( testMe ) ) alert( "We have a correct URL "); // This output will fire
else alert( "The URL is incorrect" );

console.log( tester ); // Ouputs the actual expression used: /^(http)(s)?(\:\/\/)(www\.)?([^\ ]*)$/

Replacing strings

// Create a test string
var replaceMe = "Replace bird with a duck";

// Create an expression that seeks for word "bird"
var expression = VerEx().find( "bird" );

// Execute the expression like a normal RegExp object
var result = expression.replace( replaceMe, "duck" );

alert( result ); // Outputs "Replace duck with a duck"

Shorthand for string replace

var result = VerEx().find( "red" ).replace( "We have a red house", "blue" );
alert( result ); // Outputs "We have a blue house"

同时推荐一个在线的正则表达式可视化工具：http://www.regexper.com/

评论

1 楼 akandfxs 2013-08-13  

不错。有机会用用。