| 1 | (function () {
|
| 2 |
|
| 3 | if (typeof Prism === 'undefined') {
|
| 4 | return;
|
| 5 | }
|
| 6 |
|
| 7 | /**
|
| 8 | * @callback ClassMapper
|
| 9 | * @param {string} className
|
| 10 | * @param {string} language
|
| 11 | * @returns {string}
|
| 12 | *
|
| 13 | * @callback ClassAdder
|
| 14 | * @param {ClassAdderEnvironment} env
|
| 15 | * @returns {undefined | string | string[]}
|
| 16 | *
|
| 17 | * @typedef ClassAdderEnvironment
|
| 18 | * @property {string} language
|
| 19 | * @property {string} type
|
| 20 | * @property {string} content
|
| 21 | */
|
| 22 |
|
| 23 | // options
|
| 24 |
|
| 25 | /** @type {ClassAdder | undefined} */
|
| 26 | var adder;
|
| 27 | /** @type {ClassMapper | undefined} */
|
| 28 | var mapper;
|
| 29 | /** @type {string} */
|
| 30 | var prefixString = '';
|
| 31 |
|
| 32 |
|
| 33 | /**
|
| 34 | * @param {string} className
|
| 35 | * @param {string} language
|
| 36 | */
|
| 37 | function apply(className, language) {
|
| 38 | return prefixString + (mapper ? mapper(className, language) : className);
|
| 39 | }
|
| 40 |
|
| 41 |
|
| 42 | Prism.plugins.customClass = {
|
| 43 | /**
|
| 44 | * Sets the function which can be used to add custom aliases to any token.
|
| 45 | *
|
| 46 | * @param {ClassAdder} classAdder
|
| 47 | */
|
| 48 | add: function (classAdder) {
|
| 49 | adder = classAdder;
|
| 50 | },
|
| 51 | /**
|
| 52 | * Maps all class names using the given object or map function.
|
| 53 | *
|
| 54 | * This does not affect the prefix.
|
| 55 | *
|
| 56 | * @param {Object<string, string> | ClassMapper} classMapper
|
| 57 | */
|
| 58 | map: function map(classMapper) {
|
| 59 | if (typeof classMapper === 'function') {
|
| 60 | mapper = classMapper;
|
| 61 | } else {
|
| 62 | mapper = function (className) {
|
| 63 | return classMapper[className] || className;
|
| 64 | };
|
| 65 | }
|
| 66 | },
|
| 67 | /**
|
| 68 | * Adds the given prefix to all class names.
|
| 69 | *
|
| 70 | * @param {string} string
|
| 71 | */
|
| 72 | prefix: function prefix(string) {
|
| 73 | prefixString = string || '';
|
| 74 | },
|
| 75 | /**
|
| 76 | * Applies the current mapping and prefix to the given class name.
|
| 77 | *
|
| 78 | * @param {string} className A single class name.
|
| 79 | * @param {string} language The language of the code that contains this class name.
|
| 80 | *
|
| 81 | * If the language is unknown, pass `"none"`.
|
| 82 | */
|
| 83 | apply: apply
|
| 84 | };
|
| 85 |
|
| 86 | Prism.hooks.add('wrap', function (env) {
|
| 87 | if (adder) {
|
| 88 | var result = adder({
|
| 89 | content: env.content,
|
| 90 | type: env.type,
|
| 91 | language: env.language
|
| 92 | });
|
| 93 |
|
| 94 | if (Array.isArray(result)) {
|
| 95 | env.classes.push.apply(env.classes, result);
|
| 96 | } else if (result) {
|
| 97 | env.classes.push(result);
|
| 98 | }
|
| 99 | }
|
| 100 |
|
| 101 | if (!mapper && !prefixString) {
|
| 102 | return;
|
| 103 | }
|
| 104 |
|
| 105 | env.classes = env.classes.map(function (c) {
|
| 106 | return apply(c, env.language);
|
| 107 | });
|
| 108 | });
|
| 109 |
|
| 110 | }());
|