Function findBrush

HTML/external/syntaxhighlighter_3.0.83/src/shCore.js:659–695

* Finds a brush by its alias. * * @param {String} alias Brush alias. * @param {Boolean} showAlert Suppresses the alert if false. * @return {Brush} Returns bursh constructor if found, null otherwise.

(alias, showAlert)

 * @return {Brush}				Returns bursh constructor if found, null otherwise.
 */
function findBrush(alias, showAlert)
{
	var brushes = sh.vars.discoveredBrushes,
		result = null
		;
	
	if (brushes == null) 
	{
		brushes = {};
		
		// Find all brushes
		for (var brush in sh.brushes) 
		{
			var info = sh.brushes[brush],
				aliases = info.aliases
				;
			
			if (aliases == null) 
				continue;
			
			// keep the brush name
			info.brushName = brush.toLowerCase();
			
			for (var i = 0; i < aliases.length; i++) 
				brushes[aliases[i]] = brush;
		}
		
		sh.vars.discoveredBrushes = brushes;
	}
	
	result = sh.brushes[brushes[alias]];

	if (result == null && showAlert != false)
		alert(sh.config.strings.noBrush + alias);
	
	return result;
};

/**
 * Executes a callback on each line and replaces each line with result from the callback.