ce4c83ff
 wxy
初始提交
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var utils = require('../utils')
, path = require('path');
/**
* Use the given `plugin`
*
* Examples:
*
* use("plugins/add.js")
*
* width add(10, 100)
* // => width: 110
*/
module.exports = function use(plugin, options){
utils.assertString(plugin, 'plugin');
if (options) {
utils.assertType(options, 'object', 'options');
options = parseObject(options);
}
// lookup
plugin = plugin.string;
var found = utils.lookup(plugin, this.options.paths, this.options.filename);
if (!found) throw new Error('failed to locate plugin file "' + plugin + '"');
// use
var fn = require(path.resolve(found));
if ('function' != typeof fn) {
throw new Error('plugin "' + plugin + '" does not export a function');
}
this.renderer.use(fn(options || this.options));
};
/**
* Attempt to parse object node to the javascript object.
*
* @param {Object} obj
* @return {Object}
* @api private
*/
function parseObject(obj){
obj = obj.vals;
for (var key in obj) {
var nodes = obj[key].nodes[0].nodes;
if (nodes && nodes.length) {
obj[key] = [];
for (var i = 0, len = nodes.length; i < len; ++i) {
obj[key].push(convert(nodes[i]));
}
} else {
obj[key] = convert(obj[key].first);
}
}
return obj;
function convert(node){
switch (node.nodeName) {
case 'object':
return parseObject(node);
case 'boolean':
return node.isTrue;
case 'unit':
return node.type ? node.toString() : +node.val;
case 'string':
case 'literal':
return node.val;
default:
return node.toString();
}
}
}
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