lib/RegularExpression.js
'use strict';
var $ = require('./Array');
// Wrapper for JavaScript Regular Expressions
var RegularExpression = function (pattern_or_regexp) {
var groups_pattern = /(^|[^\\\\])\(.*?\)/g;
var sets_pattern = /(^|[^\\\\])\[.*?\]/g;
var repetitions_pattern = /(^|[^\\\\])\{.*?\}/g;
var regex_aliases_pattern = /(^|[^\\\\])\\./g;
var non_word_tokens_pattern = /[^\w\s]/g;
var regexp = new RegExp(pattern_or_regexp);
this.test = function (text) {
var result = regexp.test(text);
this.reset();
return result;
};
this.groups = function (text) {
var results = $();
var match = regexp.exec(text);
while (match) {
var groups = match.slice(1, match.length);
results.push(groups);
match = regexp.global && regexp.exec(text);
}
this.reset();
return results.flatten();
};
this.reset = function () {
regexp.lastIndex = 0;
return this;
};
this.without_expressions = function () {
return regexp.source.replace(groups_pattern, '$1').replace(sets_pattern, '$1').replace(repetitions_pattern, '$1').replace(regex_aliases_pattern, '$1').replace(non_word_tokens_pattern, '');
};
this.equals = function (other) {
return this.toString() === other.toString();
};
this.toString = function () {
return '/' + regexp.source + '/';
};
};
module.exports = RegularExpression;