stylint/src/checks/checkForUniversal.js

A linter for stylus

'use strict';

var
	starS = /(\* )/,                  // check for space after star (inside a docblockr comment)
	starO = /(\/\*\*)/ || /(\/\*)/,   // check for star selector as opening comment
	starR = /(\*=)/,                  // check for use in regex
	starE = /(\*\/)/;                 // finally, check for star selector as closing comment

/**
* check for * selector.
* technically this is used as part of resets often, for good reason, despite its slowness
* which is why i'm setting it up as a warning as it won't break code but maybe you prefer to not use it
*/
module.exports = function checkForUniversal( line ) {
	if ( typeof line !== 'string' ) { return; }

	if ( line.indexOf('*') !== -1 ) {
		// check for various places where the * is valid (just comment checks atm)
		if ( !starS.test( line ) &&
			!starO.test( line ) &&
			!starR.test( line ) &&
			!starE.test( line ) ) {
				return true;
		}
		else {
			return false;
		}
	}
	else {
		return false;
	}
 }