whole_func_string: function(selector, context, skipFiltering) {
  
          // quick return for #id case
          var match;
          if (!context && (match = selector.match(idRegexp))) {
              var element = require('./view').byId(match[1]);
              return new Collection(element ? [element] : []);
          }
          context = context || require('./attaching').Attaching.instances();
          if (context.length === undefined) { context = [context]; }
  
          var tokens = Selector.tokenize(selector),
              expr   = tokens[0],
              extra  = tokens[1],
              result = context,
              mapper;
  
          while (expr.length > 0) {
              mapper = mappers[expr[0]] ? mappers[expr.shift()] : mappers[''];
              result = mapper(result);
              if (expr.length === 0) { break; }
              result = Selector.reduce(expr.shift(), result);
          }
  
          if (extra) {
              result = result.concat(Selector.find(extra, context, true));
          }
  
          return skipFiltering ? result : new Collection(utils.unique(result));
      }
func_code_string: function(selector, context, skipFiltering) {
  
          // quick return for #id case
          var match;
          if (!context && (match = selector.match(idRegexp))) {
              var element = require('./view').byId(match[1]);
              return new Collection(element ? [element] : []);
          }
          context = context || require('./attaching').Attaching.instances();
          if (context.length === undefined) { context = [context]; }
  
          var tokens = Selector.tokenize(selector),
              expr   = tokens[0],
              extra  = tokens[1],
              result = context,
              mapper;
  
          while (expr.length > 0) {
              mapper = mappers[expr[0]] ? mappers[expr.shift()] : mappers[''];
              result = mapper(result);
              if (expr.length === 0) { break; }
              result = Selector.reduce(expr.shift(), result);
          }
  
          if (extra) {
              result = result.concat(Selector.find(extra, context, true));
          }
  
          return skipFiltering ? result : new Collection(utils.unique(result));
      }
func_documentation_string: Finds views by CSS3 selectors in view tree.
  
  @example
  find('Label') find all labels on page
  find('Box[name=main] > Label') find all immediate descendant
  Labels in a box with name = "main"
  find('> Slider', context) find all direct descendant
  Sliders within given context
  find('Slider,Checkbox') find all Sliders and Checkboxes
  find('Slider:eq(3)') find 3-d slider
  
  @param {string} selector
  @param {Array.<view.Base>} context to search in
  
  @return {Collection} found views