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node_modules/relateurl/lib/parse/path.js 1.6 KB
aaac7fed   liuqimichale   add
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  "use strict";
  
  function isDirectoryIndex(resource, options)
  {
  	var verdict = false;
  	
  	options.directoryIndexes.every( function(index)
  	{
  		if (index === resource)
  		{
  			verdict = true;
  			return false;
  		}
  		
  		return true;
  	});
  	
  	return verdict;
  }
  
  
  
  function parsePath(urlObj, options)
  {
  	var path = urlObj.path.absolute.string;
  	
  	if (path)
  	{
  		var lastSlash = path.lastIndexOf("/");
  		
  		if (lastSlash > -1)
  		{
  			if (++lastSlash < path.length)
  			{
  				var resource = path.substr(lastSlash);
  				
  				if (resource!=="." && resource!=="..")
  				{
  					urlObj.resource = resource;
  					path = path.substr(0, lastSlash);
  				}
  				else
  				{
  					path += "/";
  				}
  			}
  			
  			urlObj.path.absolute.string = path;
  			urlObj.path.absolute.array = splitPath(path);
  		}
  		else if (path==="." || path==="..")
  		{
  			// "..?var", "..#anchor", etc ... not "..index.html"
  			path += "/";
  			
  			urlObj.path.absolute.string = path;
  			urlObj.path.absolute.array = splitPath(path);
  		}
  		else
  		{
  			// Resource-only
  			urlObj.resource = path;
  			urlObj.path.absolute.string = null;
  		}
  		
  		urlObj.extra.resourceIsIndex = isDirectoryIndex(urlObj.resource, options);
  	}
  	// Else: query/hash-only or empty
  }
  
  
  
  function splitPath(path)
  {
  	// TWEAK :: condition only for speed optimization
  	if (path !== "/")
  	{
  		var cleaned = [];
  		
  		path.split("/").forEach( function(dir)
  		{
  			// Cleanup -- splitting "/dir/" becomes ["","dir",""]
  			if (dir !== "")
  			{
  				cleaned.push(dir);
  			}
  		});
  		
  		return cleaned;
  	}
  	else
  	{
  		// Faster to skip the above block and just create an array
  		return [];
  	}
  }
  
  
  
  module.exports = parsePath;