kmx.io/prism.js/plugins/autolinker/prism-autolinker.js

• Show log

  Commit

• Hash : 17ed9160
  Author :
  Date : 2022-03-13T10:09:21
  

  Autolinker: Fixed URL regex to match more valid URLs (#3358)

Download

• plugins/autolinker/prism-autolinker.js

• (function () {
  
  	if (typeof Prism === 'undefined') {
  		return;
  	}
  
  	var url = /\b([a-z]{3,7}:\/\/|tel:)[\w\-+%~/.:=&!$'()*,;@]+(?:\?[\w\-+%~/.:=?&!$'()*,;@]*)?(?:#[\w\-+%~/.:#=?&!$'()*,;@]*)?/;
  	var email = /\b\S+@[\w.]+[a-z]{2}/;
  	var linkMd = /\[([^\]]+)\]\(([^)]+)\)/;
  
  	// Tokens that may contain URLs and emails
  	var 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 && !Array.isArray(def)) {
  					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) { /* noop */ }
  		}
  	});
  
  }());
  

Download