frozen-filters-js.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
// ------------------------------------------------------------------------
// Copyright (c) 2018-2024 Alexandre Bento Freire. All rights reserved.
// Licensed under the MIT License.
// ------------------------------------------------------------------------
var filters;
(function (filters) {
    var extractPath = function (input) {
        return input.match(/^(\w+):/)
            ? input.replace(/^\w+:[^\/]*\/\/[^\/]+(\/[^\?]+)(?:\?.*)?$/, '$1')
            : input.replace(/(?:\?.*)$/, '');
    };
    var urlFilters = {
        // Removes the extension part of an url.
        // e.g. `http://www.example.com/first/second/index?param1=value1&param2=value2`.
        remove_ext: function (input) { return input.replace(/\.[^\.\?]+(\?[^\?]*)?$/, '$1'); },
        // Removes the query string part of an url. e.g. `http://www.example.com/first/second/index.html`.
        remove_qs: function (input) { return input.replace(/\?[^\?]+$/, ''); },
        // Returns the basename of an url. e.g. `index.html`.
        extract_basename: function (input) { return input.replace(/^.*\/([^\/\?]+).*$/, '$1'); },
        // Returns the dirname of an url. e.g. `/first/second`.
        extract_dirname: function (input) { return extractPath(input).replace(/\/[^\/]+$/, '') || '/'; },
        // Returns the path of an url. e.g. `first/second/index.html`.
        extract_path: function (input) { return extractPath(input); },
        // Returns the protocol. e.g. `http`.
        extract_protocol: function (input) {
            var matches = input.match(/^(\w+):/);
            return matches ? matches[1] : '';
        },
        // Returns the query string part. e.g. `param1=value1&param2=value2`.
        extract_qs: function (input) { return input.replace(/^[^\?]*\??/, ''); },
    };
    var arrayFilters = {
        // Returns the first N elements of an array.
        // e.g. `{{ ["first","second","third"] | array_head: 2 }}` =~ `["first","second"]`.
        // If the number of parameters is negative it returns an empty array.
        // The the input isn't an array it returns the untouched input.
        array_head: function (input, p) {
            return Array.isArray(input) ? input.slice(0, Math.max(parseInt(p), 0)) : input;
        },
        // Returns the last N elements of an array.
        // e.g. `{{ ["first","second","third"] | array_tail: 2 }}` =~ `["second","third"]`.
        // If the number of parameters is negative it returns an empty array.
        // The the input isn't an array it returns the untouched input.
        array_tail: function (input, p) { return Array.isArray(input)
            ? input.slice(Math.max(input.length - Math.max(parseInt(p), 0), 0))
            : input; },
        // Transforms an array into an enclose html tag list separated by newline.
        // e.g. `{{ ["first","second" | array_to_taglist: "li" }}` =~
        // ```html
        // <li>first</li>
        // <li>second</li>
        // ```
        // The the input isn't an array it returns the untouched input.
        array_to_taglist: function (input, p) { return Array.isArray(input)
            ? input.map(function (item) { return "<" + p + ">" + item + "</" + p + ">"; }).join('\n')
            : input; },
    };
    function registerFilters(engine) {
        function addFilters(_filters) {
            Object.keys(_filters).forEach(function (filter) { return engine.registerFilter(filter, _filters[filter]); });
        }
        addFilters(urlFilters);
        addFilters(arrayFilters);
        return engine;
    }
    filters.registerFilters = registerFilters;
})(filters = exports.filters || (exports.filters = {}));
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