module.exports = {
	extend: '@vuepress/theme-default',
	plugins: [
		['container', {
			type: 'preview',
			validate: (params) =>{
				// return params.trim().match(/^preview\s+(.*)$/);
				return params.trim().match(/^preview/);
			},

			render: (tokens, idx,otps,event)=> {
				var m = tokens[idx].info.trim().match(/^preview\s+(.*)$/);
				if (tokens[idx].nesting === 1) {
					// opening tag
					return `<CodeSimulator class="code" src="${m && m.length > 0?m[1]:''}">`;
				} else {
					// closing tag
					return `</CodeSimulator>`;
				}
			}
		}],
		'@vuepress/back-to-top'
	]
}