82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
|
var components = require('../components.js');
|
||
|
|
var peerDependentsMap = null;
|
||
|
|
|
||
|
|
function getPeerDependentsMap() {
|
||
|
|
var peerDependentsMap = {};
|
||
|
|
Object.keys(components.languages).forEach(function (language) {
|
||
|
|
if (language === 'meta') {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (components.languages[language].peerDependencies) {
|
||
|
|
var peerDependencies = components.languages[language].peerDependencies;
|
||
|
|
if (!Array.isArray(peerDependencies)) {
|
||
|
|
peerDependencies = [peerDependencies];
|
||
|
|
}
|
||
|
|
peerDependencies.forEach(function (peerDependency) {
|
||
|
|
if (!peerDependentsMap[peerDependency]) {
|
||
|
|
peerDependentsMap[peerDependency] = [];
|
||
|
|
}
|
||
|
|
peerDependentsMap[peerDependency].push(language);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return peerDependentsMap;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getPeerDependents(mainLanguage) {
|
||
|
|
if (!peerDependentsMap) {
|
||
|
|
peerDependentsMap = getPeerDependentsMap();
|
||
|
|
}
|
||
|
|
return peerDependentsMap[mainLanguage] || [];
|
||
|
|
}
|
||
|
|
|
||
|
|
function loadLanguages(arr, withoutDependencies) {
|
||
|
|
// If no argument is passed, load all components
|
||
|
|
if (!arr) {
|
||
|
|
arr = Object.keys(components.languages).filter(function (language) {
|
||
|
|
return language !== 'meta';
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (arr && !arr.length) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!Array.isArray(arr)) {
|
||
|
|
arr = [arr];
|
||
|
|
}
|
||
|
|
|
||
|
|
arr.forEach(function (language) {
|
||
|
|
if (!components.languages[language]) {
|
||
|
|
console.warn('Language does not exist ' + language);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Load dependencies first
|
||
|
|
if (!withoutDependencies && components.languages[language].require) {
|
||
|
|
loadLanguages(components.languages[language].require);
|
||
|
|
}
|
||
|
|
|
||
|
|
var pathToLanguage = './prism-' + language;
|
||
|
|
delete require.cache[require.resolve(pathToLanguage)];
|
||
|
|
delete Prism.languages[language];
|
||
|
|
require(pathToLanguage);
|
||
|
|
|
||
|
|
// Reload dependents
|
||
|
|
var dependents = getPeerDependents(language).filter(function (dependent) {
|
||
|
|
// If dependent language was already loaded,
|
||
|
|
// we want to reload it.
|
||
|
|
if (Prism.languages[dependent]) {
|
||
|
|
delete Prism.languages[dependent];
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
});
|
||
|
|
if (dependents.length) {
|
||
|
|
loadLanguages(dependents, true);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = function (arr) {
|
||
|
|
// Don't expose withoutDependencies
|
||
|
|
loadLanguages(arr);
|
||
|
|
};
|