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/* jshint node: true */ 'use strict';
var REGEXP_PARTS = /(\*|\?)/g;
/** # wildcard
Very simple wildcard matching, which is designed to provide the same functionality that is found in the [eve](https://github.com/adobe-webplatform/eve) eventing library.
## Usage
It works with strings:
<<< examples/strings.js
Arrays:
<<< examples/arrays.js
Objects (matching against keys):
<<< examples/objects.js
## Alternative Implementations
- <https://github.com/isaacs/node-glob>
Great for full file-based wildcard matching.
- <https://github.com/sindresorhus/matcher>
A well cared for and loved JS wildcard matcher. **/
function WildcardMatcher(text, separator) { this.text = text = text || ''; this.hasWild = text.indexOf('*') >= 0; this.separator = separator; this.parts = text.split(separator).map(this.classifyPart.bind(this)); }
WildcardMatcher.prototype.match = function(input) { var matches = true; var parts = this.parts; var ii; var partsCount = parts.length; var testParts;
if (typeof input == 'string' || input instanceof String) { if (!this.hasWild && this.text != input) { matches = false; } else { testParts = (input || '').split(this.separator); for (ii = 0; matches && ii < partsCount; ii++) { if (parts[ii] === '*') { continue; } else if (ii < testParts.length) { matches = parts[ii] instanceof RegExp ? parts[ii].test(testParts[ii]) : parts[ii] === testParts[ii]; } else { matches = false; } }
// If matches, then return the component parts
matches = matches && testParts; } } else if (typeof input.splice == 'function') { matches = [];
for (ii = input.length; ii--; ) { if (this.match(input[ii])) { matches[matches.length] = input[ii]; } } } else if (typeof input == 'object') { matches = {};
for (var key in input) { if (this.match(key)) { matches[key] = input[key]; } } }
return matches; };
WildcardMatcher.prototype.classifyPart = function(part) { // in the event that we have been provided a part that is not just a wildcard
// then turn this into a regular expression for matching purposes
if (part === '*') { return part; } else if (part.indexOf('*') >= 0 || part.indexOf('?') >= 0) { return new RegExp(part.replace(REGEXP_PARTS, '\.$1')); }
return part; };
module.exports = function(text, test, separator) { var matcher = new WildcardMatcher(text, separator || /[\/\.]/); if (typeof test != 'undefined') { return matcher.match(test); }
return matcher; };
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