module.exports = function(str, options){
options = _.extend({
gutter: true,
wrap: true,
first_line: 1,
lang: '',
caption: '',
tab: ''
}, options);
if (options.tab){
str = str.replace(/\n(\t+)/g, function(match, tabs){
var result = '\n';
for (var i = 0, len = tabs.length; i < len; i++){
result += options.tab;
}
return result;
});
}
var compiled = '';
if (!options.lang){
compiled = hljs.highlightAuto(str).value;
} else if (options.lang === 'plain'){
compiled = str;
} else {
var lang = options.lang.toLowerCase();
if (keys.indexOf(lang) !== -1) lang = alias[lang];
try {
compiled = hljs.highlightByLine(lang, str).value;
} catch (e){
compiled = hljs.highlightAuto(str).value;
}
}
if (!options.wrap) return compiled;
var lines = compiled.split('\n'),
numbers = '',
content = '',
firstLine = options.first_line;
lines.forEach(function(item, i){
numbers += '<div class="line">' + (i + firstLine) + '</div>';
content += '<div class="line">' + item + '</div>';
});
var result = '<figure class="highlight' + (options.lang ? ' ' + options.lang : '') + '">' +
(options.caption ? '<figcaption>' + options.caption + '</figcaption>' : '');
if (options.gutter){
result += '<table><tr>' +
'<td class="gutter"><pre>' + numbers + '</pre></td>' +
'<td class="code"><pre>' + content + '</pre></td>' +
'</tr></table>';
} else {
result += '<pre>' + content + '</pre>';
}
result += '</figure>';
return result;
};