kmx.io/prism.js/components/prism-shell-session.js

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• Hash : 35b88fcf
  Author :
  Date : 2021-09-06T17:51:54
  

  Shell-session: Fixed command false positives (#3048) * Shell-session: Fixed command false positives * Fixed comments and `<` characters

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• components/prism-shell-session.js

• (function (Prism) {
  
  	// CAREFUL!
  	// The following patterns are concatenated, so the group referenced by a back reference is non-obvious!
  
  	var strings = [
  		// normal string
  		/"(?:\\[\s\S]|\$\([^)]+\)|\$(?!\()|`[^`]+`|[^"\\`$])*"/.source,
  		/'[^']*'/.source,
  		/\$'(?:[^'\\]|\\[\s\S])*'/.source,
  
  		// here doc
  		// 2 capturing groups
  		/<<-?\s*(["']?)(\w+)\1\s[\s\S]*?[\r\n]\2/.source
  	].join('|');
  
  	Prism.languages['shell-session'] = {
  		'command': {
  			pattern: RegExp(
  				// user info
  				/^/.source +
  				'(?:' +
  				(
  					// <user> ":" ( <path> )?
  					/[^\s@:$#%*!/\\]+@[^\r\n@:$#%*!/\\]+(?::[^\0-\x1F$#%*?"<>:;|]+)?/.source +
  					'|' +
  					// <path>
  					// Since the path pattern is quite general, we will require it to start with a special character to
  					// prevent false positives.
  					/[/~.][^\0-\x1F$#%*?"<>@:;|]*/.source
  				) +
  				')?' +
  				// shell symbol
  				/[$#%](?=\s)/.source +
  				// bash command
  				/(?:[^\\\r\n \t'"<$]|[ \t](?:(?!#)|#.*$)|\\(?:[^\r]|\r\n?)|\$(?!')|<(?!<)|<<str>>)+/.source.replace(/<<str>>/g, function () { return strings; }),
  				'm'
  			),
  			greedy: true,
  			inside: {
  				'info': {
  					// foo@bar:~/files$ exit
  					// foo@bar$ exit
  					// ~/files$ exit
  					pattern: /^[^#$%]+/,
  					alias: 'punctuation',
  					inside: {
  						'user': /^[^\s@:$#%*!/\\]+@[^\r\n@:$#%*!/\\]+/,
  						'punctuation': /:/,
  						'path': /[\s\S]+/
  					}
  				},
  				'bash': {
  					pattern: /(^[$#%]\s*)\S[\s\S]*/,
  					lookbehind: true,
  					alias: 'language-bash',
  					inside: Prism.languages.bash
  				},
  				'shell-symbol': {
  					pattern: /^[$#%]/,
  					alias: 'important'
  				}
  			}
  		},
  		'output': /.(?:.*(?:[\r\n]|.$))*/
  	};
  
  	Prism.languages['sh-session'] = Prism.languages['shellsession'] = Prism.languages['shell-session'];
  
  }(Prism));
  

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