75 lines
1.6 KiB
JavaScript
75 lines
1.6 KiB
JavaScript
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var utils = require('../utils')
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, path = require('path');
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/**
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* Use the given `plugin`
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*
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* Examples:
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*
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* use("plugins/add.js")
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*
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* width add(10, 100)
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* // => width: 110
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*/
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module.exports = function use(plugin, options){
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utils.assertString(plugin, 'plugin');
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if (options) {
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utils.assertType(options, 'object', 'options');
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options = parseObject(options);
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}
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// lookup
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plugin = plugin.string;
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var found = utils.lookup(plugin, this.options.paths, this.options.filename);
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if (!found) throw new Error('failed to locate plugin file "' + plugin + '"');
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// use
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var fn = require(path.resolve(found));
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if ('function' != typeof fn) {
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throw new Error('plugin "' + plugin + '" does not export a function');
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}
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this.renderer.use(fn(options || this.options));
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};
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/**
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* Attempt to parse object node to the javascript object.
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*
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* @param {Object} obj
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* @return {Object}
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* @api private
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*/
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function parseObject(obj){
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obj = obj.vals;
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for (var key in obj) {
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var nodes = obj[key].nodes[0].nodes;
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if (nodes && nodes.length) {
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obj[key] = [];
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for (var i = 0, len = nodes.length; i < len; ++i) {
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obj[key].push(convert(nodes[i]));
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}
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} else {
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obj[key] = convert(obj[key].first);
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}
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}
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return obj;
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function convert(node){
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switch (node.nodeName) {
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case 'object':
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return parseObject(node);
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case 'boolean':
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return node.isTrue;
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case 'unit':
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return node.type ? node.toString() : +node.val;
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case 'string':
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case 'literal':
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return node.val;
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default:
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return node.toString();
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}
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}
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}
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