CS-Notes/docs/_style/prism-master/plugins/remove-initial-line-feed/prism-remove-initial-line-feed.js
2018-12-19 14:09:39 +08:00

21 lines
523 B
Java

(function() {
if (typeof self === 'undefined' || !self.Prism || !self.document) {
return;
}
Prism.hooks.add('before-sanity-check', function (env) {
if (env.code) {
var pre = env.element.parentNode;
var clsReg = /\s*\bkeep-initial-line-feed\b\s*/;
if (
pre && pre.nodeName.toLowerCase() === 'pre' &&
// Apply only if nor the <pre> or the <code> have the class
(!clsReg.test(pre.className) && !clsReg.test(env.element.className))
) {
env.code = env.code.replace(/^(?:\r?\n|\r)/, '');
}
}
});
}());