shortcut id selection

Author: goofballLogic

features/selection-by-id.feature

@@ -17,4 +17,9 @@ Feature: select values by type using query syntax
     Scenario: Query for nested node by id
         Given I query for "[@id=test:2]"
         When I query the result for "test:name @value"
-        Then the result should be "Thing 2"
+        Then the result should be "Thing 2"
+
+    Scenario: Shortcut query for node by id
+        Given I query for "#test:2"
+        When I query the result for "test:name @value"
+        Then the result should be "Thing 2"

src/ld-query.js

@@ -461,22 +461,24 @@
     function extractStep(path, steps) {
 
         // try and extract a 'where' [@attribute=value] part from the start of the string
-        var wherePart = /^(\s*\*?)\[(.+?)=(.+?)\](.*)/.exec(path);
+        var wherePart = /^(\s*\*?)(?:\[(.+?)=(.+?)\]|#(\S*))(.*)/.exec(path);
         if (wherePart) {
 
             if (wherePart[1]) {
 
                 steps.push({ id: -1, path: undefined, directChild: false, tests: [] });
 
             }
-            var step = { key: wherePart[2].trim(), value: wherePart[3].trim() };
+            var step = wherePart[3]
+                ? { key: wherePart[2].trim(), value: wherePart[3].trim() }
+                : { key: "@id", value: wherePart[4].trim() };
             if (!nonExpandableValuePropNamePattern.test(step.key)) {
 
                 step.value = expand(step.value);
 
             }
             steps.push(step);
-            return (wherePart[4] || "");
+            return (wherePart[5] || "");
 
         }
         // try and extract a > part from the start of the string