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