screw the module pattern
this needs to work when minified http://snook.ca/archives/javascript/no-love-for-module-pattern
This commit is contained in:
deltreey
@@ -1,7 +1,7 @@
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'use strict';
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var assert = require('assert'),
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wildstring = require('../');
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wildstring = require('../wildstring');
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describe('wildstring', function() {
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it('should create an object and set a default wildcard', function() {
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286
wildstring.js
286
wildstring.js
@@ -1,20 +1,5 @@
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'use strict';
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var wildstring = (function (name, definition) {
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if (typeof(module) !== 'undefined') {
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module.exports = definition();
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}
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else if (typeof(define) === 'function' && typeof(define.amd) === 'object') {
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define(definition);
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}
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else if (typeof(this) !== 'undefined') {
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this[name] = definition();
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}
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else {
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return definition();
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}
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}('wildstring', function () {
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/**
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* @namespace wildstring
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* @property {string} wildcard the wildcard to use in your strings, defaults to '*'
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@@ -22,31 +7,103 @@ var wildstring = (function (name, definition) {
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*/
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var wildstring = {
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wildcard: '*',
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caseSensitive: true
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};
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caseSensitive: true,
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/**
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* When a match doesn't continue to the end of the string, this function rolls back to try again with the rest of the string
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* @memberof wildstring
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* @access private
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* @param {string[]} rollbackStrings The list of substrings that appeared prior to the current match
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* @param {string[]} patternSubstrings The matching list of pattens that need to be matched before the current pattern
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*/
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function checkRollbackStrings (rollbackStrings, patternSubstrings) {
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for (var s = 0; s < rollbackStrings.length; ++s) {
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var currentString = rollbackStrings[s].string; // starting with the rolled back string
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var patternIndex = rollbackStrings[s].index;
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/**
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* When a match doesn't continue to the end of the string, this function rolls back to try again with the rest of the string
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* @memberof wildstring
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* @access private
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* @param {string[]} rollbackStrings The list of substrings that appeared prior to the current match
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* @param {string[]} patternSubstrings The matching list of pattens that need to be matched before the current pattern
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*/
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checkRollbackStrings: function (rollbackStrings, patternSubstrings) {
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for (var s = 0; s < rollbackStrings.length; ++s) {
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var currentString = rollbackStrings[s].string; // starting with the rolled back string
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var patternIndex = rollbackStrings[s].index;
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while (patternIndex < patternSubstrings.length) {
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if (currentString.indexOf(patternSubstrings[patternIndex]) === -1) {
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break;
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}
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var testString = currentString.substr(1); //remove just one char to retest
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rollbackStrings.push({ string: testString, index: patternIndex });
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if (testString.indexOf(patternSubstrings[patternIndex]) === -1) {
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rollbackStrings.pop();
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break;
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}
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currentString = currentString.substr(
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currentString.indexOf(patternSubstrings[patternIndex]) + patternSubstrings[patternIndex].length
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);
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patternIndex++;
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while (patternSubstrings[patternIndex] === '') {
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patternIndex++;
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}
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if (patternIndex >= patternSubstrings.length) {
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if (patternSubstrings[patternSubstrings.length - 1] !== '' &&
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currentString.length > 0) {
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// not ending with a wildcard, we need to backtrack
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break;
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}
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else {
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return true;
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}
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}
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}
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}
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return false;
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},
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/**
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* Check if a string matches a pattern
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* @memberof wildstring
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* @param {string} pattern The pattern to match using the configured wildcard
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* @param {string} string The string to test for a match
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*/
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match: function (pattern, string) {
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// if there are no wildcards, must be exact
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if (pattern.indexOf(wildstring.wildcard) === -1) {
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return pattern === string;
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}
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if (!wildstring.caseSensitive) {
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pattern = pattern.toLowerCase();
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string = string.toLowerCase();
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}
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var patternSubstrings = pattern.split(wildstring.wildcard);
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var patternIndex = 0;
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var currentString = string;
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// find pattern beginning
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while (patternSubstrings[patternIndex] === '') {
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patternIndex++;
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// if the pattern is just wildcards, it matches
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if (patternIndex === pattern.length) {
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return true;
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}
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}
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if (patternIndex === 0 && string.indexOf(patternSubstrings[0]) !== 0) {
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// not starting with a wildcard
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return false;
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}
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var rollbackStrings = [];
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while (patternIndex < patternSubstrings.length) {
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if (currentString.indexOf(patternSubstrings[patternIndex]) === -1) {
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break;
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return wildstring.checkRollbackStrings(rollbackStrings, patternSubstrings);
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}
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// create a queue of strings to roll back and try again if we fail later
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var testString = currentString.substr(1); //remove just one char to retest
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rollbackStrings.push({ string: testString, index: patternIndex });
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if (testString.indexOf(patternSubstrings[patternIndex]) === -1) {
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rollbackStrings.pop();
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break;
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}
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currentString = currentString.substr(
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@@ -57,135 +114,66 @@ function checkRollbackStrings (rollbackStrings, patternSubstrings) {
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while (patternSubstrings[patternIndex] === '') {
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patternIndex++;
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}
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}
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if (patternIndex >= patternSubstrings.length) {
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if (patternSubstrings[patternSubstrings.length - 1] !== '' &&
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currentString.length > 0) {
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// not ending with a wildcard, we need to backtrack
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break;
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}
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else {
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return true;
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}
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if (patternIndex >= patternSubstrings.length &&
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patternSubstrings[patternSubstrings.length - 1] !== '' &&
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currentString.length > 0) {
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// not ending with a wildcard, we need to backtrack
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if (currentString === string) { // this string doesn't even match a little
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return false;
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}
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}
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}
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return false;
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}
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/**
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* Check if a string matches a pattern
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* @memberof wildstring
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* @param {string} pattern The pattern to match using the configured wildcard
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* @param {string} string The string to test for a match
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*/
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wildstring.match = function (pattern, string) {
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// if there are no wildcards, must be exact
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if (pattern.indexOf(wildstring.wildcard) === -1) {
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return pattern === string;
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}
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if (!wildstring.caseSensitive) {
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pattern = pattern.toLowerCase();
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string = string.toLowerCase();
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}
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var patternSubstrings = pattern.split(wildstring.wildcard);
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var patternIndex = 0;
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var currentString = string;
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// find pattern beginning
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while (patternSubstrings[patternIndex] === '') {
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patternIndex++;
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// if the pattern is just wildcards, it matches
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if (patternIndex === pattern.length) {
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return true;
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}
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}
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if (patternIndex === 0 && string.indexOf(patternSubstrings[0]) !== 0) {
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// not starting with a wildcard
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return false;
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}
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var rollbackStrings = [];
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while (patternIndex < patternSubstrings.length) {
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if (currentString.indexOf(patternSubstrings[patternIndex]) === -1) {
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return checkRollbackStrings(rollbackStrings, patternSubstrings);
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}
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// create a queue of strings to roll back and try again if we fail later
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var testString = currentString.substr(1); //remove just one char to retest
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rollbackStrings.push({ string: testString, index: patternIndex });
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if (testString.indexOf(patternSubstrings[patternIndex]) === -1) {
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rollbackStrings.pop();
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return wildstring.checkRollbackStrings(rollbackStrings, patternSubstrings);
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}
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currentString = currentString.substr(
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currentString.indexOf(patternSubstrings[patternIndex]) + patternSubstrings[patternIndex].length
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);
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return true;
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},
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patternIndex++;
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while (patternSubstrings[patternIndex] === '') {
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patternIndex++;
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/**
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* Replace wildcards in a pattern with strings (string interpolation)
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* @memberof wildstring
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* @param {string} pattern The start string, using wildcards as placeholders
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* @param {string|string[]} strings The string or strings to replace the wildcards in the pattern.
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* If you pass a single string, it will replace all the wildcards with the string.
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* If you pass an array of strings, they will replace the wildcards in order from left to right.
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* @throws The number of items in the strings array (if you pass an array) must match the number of wildcards in the pattern string.
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* @throws You need to pass both parameters
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* @throws You need to pass the right types
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*/
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replace: function (pattern, strings) {
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if (pattern === undefined || strings === undefined) {
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throw new Error('wildstring.replace takes the pattern as one parameter and either a string or an array of strings as the second. You didn\'t pass enough parameters.');
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}
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}
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if (patternIndex >= patternSubstrings.length &&
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patternSubstrings[patternSubstrings.length - 1] !== '' &&
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currentString.length > 0) {
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// not ending with a wildcard, we need to backtrack
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if (currentString === string) { // this string doesn't even match a little
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return false;
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if (typeof(strings) === typeof('')) {
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return pattern.replace(wildstring.wildcard, strings);
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}
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if (!Array.isArray(strings) || typeof(pattern) !== typeof('')) {
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throw new Error('wildstring.replace takes the pattern as one parameter and either a string or an array of strings as the second. Your parameter types are incorrect.');
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}
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if (pattern.indexOf(wildstring.wildcard) === -1) {
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return pattern; // if there are no wildcards, just return the pattern
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}
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var patternSubstrings = pattern.split(wildstring.wildcard);
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if (patternSubstrings.length - 1 !== strings.length) {
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var message = 'There are a different number of wildcards than strings to replace them. You have ' +
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wildstring.wildcard +' wildcards in "' + wildstring.wildcard + '" and ' + wildstring.wildcard +
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' replacement strings.';
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throw new Error(wildstring.replace(message, [ patternSubstrings.length - 1, pattern, strings.length ]));
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}
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return checkRollbackStrings(rollbackStrings, patternSubstrings);
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}
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var result = '';
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return true;
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for (var s = 0; s < strings.length; ++s) {
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result += patternSubstrings[s] + strings[s];
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}
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return result;
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}
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};
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/**
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* Replace wildcards in a pattern with strings (string interpolation)
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* @memberof wildstring
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* @param {string} pattern The start string, using wildcards as placeholders
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* @param {string|string[]} strings The string or strings to replace the wildcards in the pattern.
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* If you pass a single string, it will replace all the wildcards with the string.
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* If you pass an array of strings, they will replace the wildcards in order from left to right.
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* @throws The number of items in the strings array (if you pass an array) must match the number of wildcards in the pattern string.
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* @throws You need to pass both parameters
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* @throws You need to pass the right types
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*/
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wildstring.replace = function (pattern, strings) {
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if (pattern === undefined || strings === undefined) {
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throw new Error('wildstring.replace takes the pattern as one parameter and either a string or an array of strings as the second. You didn\'t pass enough parameters.');
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}
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if (typeof(strings) === typeof('')) {
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return pattern.replace(wildstring.wildcard, strings);
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}
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if (!Array.isArray(strings) || typeof(pattern) !== typeof('')) {
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throw new Error('wildstring.replace takes the pattern as one parameter and either a string or an array of strings as the second. Your parameter types are incorrect.');
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}
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if (pattern.indexOf(wildstring.wildcard) === -1) {
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return pattern; // if there are no wildcards, just return the pattern
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}
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var patternSubstrings = pattern.split(wildstring.wildcard);
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if (patternSubstrings.length - 1 !== strings.length) {
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var message = 'There are a different number of wildcards than strings to replace them. You have ' +
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wildstring.wildcard +' wildcards in "' + wildstring.wildcard + '" and ' + wildstring.wildcard +
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' replacement strings.';
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throw new Error(wildstring.replace(message, [ patternSubstrings.length - 1, pattern, strings.length ]));
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}
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var result = '';
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for (var s = 0; s < strings.length; ++s) {
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result += patternSubstrings[s] + strings[s];
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}
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return result;
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};
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if (typeof(module) !== 'undefined') { module.exports = wildstring; }
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if (typeof(angular) !== 'undefined') { angular.module('wildstring').factory = wildstring; }
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if (typeof(define) !== 'undefined') { define([], wildstring); }
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return wildstring;
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}));
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