tenebrous-dicebot/api/node_modules/wildcard/index.js

115 lines
2.6 KiB
JavaScript
Executable File

/* 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;
};