added more function definitions, added small hack to make randomWalk and countLine that do not take any series work with the parser and target editor (the whole target editor and parsing & back to target rendering needs to be rewritten to handle functions that take multiple series)

src/app/services/graphite/gfunc.js

@@ -31,13 +31,6 @@ function (_) {
     defaultParams: [1],
   });
 
-  addFuncDef({
-    name: "alias",
-    category: categories.Special,
-    params: [ { name: "alias", type: 'string' } ],
-    defaultParams: ['alias']
-  });
-
   addFuncDef({
     name: "holtWintersForecast",
     category: categories.Calculate,
@@ -69,6 +62,20 @@ function (_) {
     category: categories.Combine,
   });
 
+  addFuncDef({
+    name: "alias",
+    category: categories.Special,
+    params: [ { name: "alias", type: 'string' } ],
+    defaultParams: ['alias']
+  });
+
+  addFuncDef({
+    name: "aliasSub",
+    category: categories.Special,
+    params: [ { name: "search", type: 'string' }, { name: "replace", type: 'string' } ],
+    defaultParams: ['', '']
+  });
+
   addFuncDef({
     name: "groupByNode",
     category: categories.Special,
@@ -94,6 +101,30 @@ function (_) {
     defaultParams: [3]
   });
 
+  addFuncDef({
+    name: 'aliasByMetric',
+    category: categories.Special,
+  });
+
+  addFuncDef({
+    name: 'randomWalk',
+    category: categories.Special,
+    params: [ { name: "name", type: "string", } ],
+    defaultParams: ['randomWalk']
+  });
+
+  addFuncDef({
+    name: 'countSeries',
+    category: categories.Special
+  });
+
+  addFuncDef({
+    name: 'constantLine',
+    category: categories.Special,
+    params: [ { name: "value", type: "int", } ],
+    defaultParams: [10]
+  });
+
   addFuncDef({
     name: 'scale',
     category: categories.Transform,
@@ -125,6 +156,25 @@ function (_) {
     defaultParams: ['1h']
   });
 
+  addFuncDef({
+    name: 'absolute',
+    category: categories.Transform,
+  });
+
+  addFuncDef({
+    name: 'averageAbove',
+    category: categories.Filter,
+    params: [ { name: "n", type: "int", } ],
+    defaultParams: [25]
+  });
+
+  addFuncDef({
+    name: 'averageBelow',
+    category: categories.Filter,
+    params: [ { name: "n", type: "int", } ],
+    defaultParams: [25]
+  });
+
   _.each(categories, function(funcList, catName) {
     categories[catName] = _.sortBy(funcList, 'name');
   });
@@ -135,6 +185,19 @@ function (_) {
     this.updateText();
   }
 
+  FuncInstance.prototype.render = function (metricExp) {
+    var str = this.def.name + '(';
+    var parameters = _.map(this.params, function(value) {
+      return _.isString(value) ? "'" + value + "'" : value;
+    });
+
+    if (metricExp !== undefined) {
+      parameters.unshift(metricExp);
+    }
+
+    return str + parameters.join(',') + ')';
+  };
+
   FuncInstance.prototype.updateText = function () {
     if (this.params.length === 0) {
       this.text = this.def.name + '()';