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regexp.js
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regexp.js
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if(!dojo._hasResource["dojo.regexp"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.regexp"] = true;
dojo.provide("dojo.regexp");
dojo.regexp.escapeString = function(/*String*/str, /*String?*/except){
// summary:
// Adds escape sequences for special characters in regular expressions
// except:
// a String with special characters to be left unescaped
// return str.replace(/([\f\b\n\t\r[\^$|?*+(){}])/gm, "\\$1"); // string
return str.replace(/([\.$?*!=:|{}\(\)\[\]\\\/^])/g, function(ch){
if(except && except.indexOf(ch) != -1){
return ch;
}
return "\\" + ch;
}); // String
}
dojo.regexp.buildGroupRE = function(/*Object|Array*/arr, /*Function*/re, /*Boolean?*/nonCapture){
// summary:
// Builds a regular expression that groups subexpressions
// description:
// A utility function used by some of the RE generators. The
// subexpressions are constructed by the function, re, in the second
// parameter. re builds one subexpression for each elem in the array
// a, in the first parameter. Returns a string for a regular
// expression that groups all the subexpressions.
// arr:
// A single value or an array of values.
// re:
// A function. Takes one parameter and converts it to a regular
// expression.
// nonCapture:
// If true, uses non-capturing match, otherwise matches are retained
// by regular expression. Defaults to false
// case 1: a is a single value.
if(!(arr instanceof Array)){
return re(arr); // String
}
// case 2: a is an array
var b = [];
for(var i = 0; i < arr.length; i++){
// convert each elem to a RE
b.push(re(arr[i]));
}
// join the REs as alternatives in a RE group.
return dojo.regexp.group(b.join("|"), nonCapture); // String
}
dojo.regexp.group = function(/*String*/expression, /*Boolean?*/nonCapture){
// summary:
// adds group match to expression
// nonCapture:
// If true, uses non-capturing match, otherwise matches are retained
// by regular expression.
return "(" + (nonCapture ? "?:":"") + expression + ")"; // String
}
}

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