82 lines
1.8 KiB
JavaScript
82 lines
1.8 KiB
JavaScript
|
(function(){
|
||
|
|
|
||
|
|
if (
|
||
|
|
typeof self !== 'undefined' && !self.Prism ||
|
||
|
|
typeof global !== 'undefined' && !global.Prism
|
||
|
|
) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var url = /\b([a-z]{3,7}:\/\/|tel:)[\w\-+%~/.:#=?&]+/,
|
||
|
|
email = /\b\S+@[\w.]+[a-z]{2}/,
|
||
|
|
linkMd = /\[([^\]]+)]\(([^)]+)\)/,
|
||
|
|
|
||
|
|
// Tokens that may contain URLs and emails
|
||
|
|
candidates = ['comment', 'url', 'attr-value', 'string'];
|
||
|
|
|
||
|
|
Prism.plugins.autolinker = {
|
||
|
|
processGrammar: function (grammar) {
|
||
|
|
// Abort if grammar has already been processed
|
||
|
|
if (!grammar || grammar['url-link']) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
Prism.languages.DFS(grammar, function (key, def, type) {
|
||
|
|
if (candidates.indexOf(type) > -1 && Prism.util.type(def) !== 'Array') {
|
||
|
|
if (!def.pattern) {
|
||
|
|
def = this[key] = {
|
||
|
|
pattern: def
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
def.inside = def.inside || {};
|
||
|
|
|
||
|
|
if (type == 'comment') {
|
||
|
|
def.inside['md-link'] = linkMd;
|
||
|
|
}
|
||
|
|
if (type == 'attr-value') {
|
||
|
|
Prism.languages.insertBefore('inside', 'punctuation', { 'url-link': url }, def);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
def.inside['url-link'] = url;
|
||
|
|
}
|
||
|
|
|
||
|
|
def.inside['email-link'] = email;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
grammar['url-link'] = url;
|
||
|
|
grammar['email-link'] = email;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
Prism.hooks.add('before-highlight', function(env) {
|
||
|
|
Prism.plugins.autolinker.processGrammar(env.grammar);
|
||
|
|
});
|
||
|
|
|
||
|
|
Prism.hooks.add('wrap', function(env) {
|
||
|
|
if (/-link$/.test(env.type)) {
|
||
|
|
env.tag = 'a';
|
||
|
|
|
||
|
|
var href = env.content;
|
||
|
|
|
||
|
|
if (env.type == 'email-link' && href.indexOf('mailto:') != 0) {
|
||
|
|
href = 'mailto:' + href;
|
||
|
|
}
|
||
|
|
else if (env.type == 'md-link') {
|
||
|
|
// Markdown
|
||
|
|
var match = env.content.match(linkMd);
|
||
|
|
|
||
|
|
href = match[2];
|
||
|
|
env.content = match[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
env.attributes.href = href;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Silently catch any error thrown by decodeURIComponent (#1186)
|
||
|
|
try {
|
||
|
|
env.content = decodeURIComponent(env.content);
|
||
|
|
} catch(e) {}
|
||
|
|
});
|
||
|
|
|
||
|
|
})();
|