mirror of https://github.com/webpack/webpack.git
97 lines
2.7 KiB
JavaScript
97 lines
2.7 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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function LoadersList(list) {
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this.list = list || [];
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this.list.forEach(function(element) {
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if(element === null || typeof element !== "object")
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throw new Error("Each element of the loaders list must be an object or array");
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});
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}
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module.exports = LoadersList;
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function regExpAsMatcher(regExp) {
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return function(str) {
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return regExp.test(str);
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}
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}
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function asMatcher(test) {
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if(typeof test === "string") {
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return regExpAsMatcher(new RegExp("^" + test.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&")));
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} else if(typeof test === "function") {
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return test;
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} else if(test instanceof RegExp) {
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return regExpAsMatcher(test);
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} else if(Array.isArray(test)) {
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var matchers = test.map(function(item) {
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if(Array.isArray(item)) {
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var matchers = item.map(asMatcher);
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return function(str) {
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return matchers.every(function(matcher) {
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return matcher(str);
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});
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};
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} else {
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return asMatcher(item);
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}
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});
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return function(str) {
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for(var i = 0; i < test.length; i++) {
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if(matchers[i](str))
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return true;
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}
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return false;
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};
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} else {
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throw new Error(test + " is not a valid test");
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}
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}
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function getLoadersFromObject(element) {
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if(element.query) {
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if(!element.loader || element.loader.indexOf("!") >= 0) throw new Error("Cannot define 'query' and multiple loaders in loaders list");
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if(typeof element.query === "string") return [element.loader + "?" + element.query];
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return [element.loader + "?" + JSON.stringify(element.query)];
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}
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if(element.loader) return element.loader.split("!");
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if(element.loaders) return element.loaders;
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throw new Error("Element from loaders list should have one of the fields 'loader' or 'loaders'");
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}
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LoadersList.prototype.matchPart = function matchPart(str, test) {
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if(!test) return true;
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var matcher = asMatcher(test);
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return matcher(str);
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};
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LoadersList.prototype.match = function match(str) {
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return this.list.map(function(element) {
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if(Array.isArray(element)) {
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for(var i = 0; i < element.length; i++) {
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if(this.matchObject(str, element[i]))
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return getLoadersFromObject(element[i]);
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}
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} else {
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if(this.matchObject(str, element))
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return getLoadersFromObject(element);
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}
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}, this).filter(Boolean).reduce(function(array, r) {
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r.forEach(function(r) {
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array.push(r);
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});
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return array;
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}, []) || [];
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};
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LoadersList.prototype.matchObject = function matchObject(str, obj) {
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if(obj.test)
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if(!this.matchPart(str, obj.test)) return false;
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if(obj.include)
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if(!this.matchPart(str, obj.include)) return false;
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if(obj.exclude)
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if(this.matchPart(str, obj.exclude)) return false;
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return true;
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};
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