Pipeline Operator

mustache.js

@@ -49,7 +49,7 @@
    * Safe way of detecting whether or not the given thing is a primitive and
    * whether it has the given property
    */
-  function primitiveHasOwnProperty (primitive, propName) {  
+  function primitiveHasOwnProperty (primitive, propName) {
     return (
       primitive != null
       && typeof primitive !== 'object'
@@ -92,6 +92,7 @@
   var equalsRe = /\s*=/;
   var curlyRe = /\s*\}/;
   var tagRe = /#|\^|\/|>|\{|&|=|!/;
+  var pipelineRe = /\|\>?/;
 
   /**
    * Breaks up the given `template` string into a tree of tokens. If the `tags`
@@ -379,13 +380,39 @@
     return new Context(view, this);
   };
 
+  Context.prototype.resolvePipelineOperator = function resolvePipelineOperator (value, pipelines){
+    var self = this;
+    var pipelineResolver = function pipelineResolver (val, func){
+      var findFunction = function(instance, functionToFind, valueToPutInFindedFunction, depth){
+        if(depth <= 0 || !instance) return null;
+        if(instance.view.hasOwnProperty(functionToFind)) return instance.view[func](valueToPutInFindedFunction);
+
+        return findFunction(instance.parent, functionToFind, val, depth)
+      }
+
+      var findedFunction = findFunction(self, func, val, 20)
+
+      return findedFunction ? findedFunction : val
+    };
+    return pipelines.reduce(pipelineResolver,value);
+  };
+
   /**
    * Returns the value of the given name in this context, traversing
    * up the context hierarchy if the value is absent in this context's view.
    */
   Context.prototype.lookup = function lookup (name) {
-    var cache = this.cache;
+    // {{variable | pipelineOne |> pipelineTwo}}
+    // output: [variable,pipelineOne, pipelineTwo ]
+    // Can use | or |>.
+    var replacedName = name
+      .replace(new RegExp(spaceRe, 'g'),'')
+      .split(pipelineRe);
+
+    name = replacedName.shift();
+    pipelines = replacedName;
 
+    var cache = this.cache;
     var value;
     if (cache.hasOwnProperty(name)) {
       value = cache[name];
@@ -418,7 +445,7 @@
           while (intermediateValue != null && index < names.length) {
             if (index === names.length - 1)
               lookupHit = (
-                hasProperty(intermediateValue, names[index]) 
+                hasProperty(intermediateValue, names[index])
                 || primitiveHasOwnProperty(intermediateValue, names[index])
               );
 
@@ -460,9 +487,14 @@
       cache[name] = value;
     }
 
+
     if (isFunction(value))
       value = value.call(this.view);
 
+    if (pipelines){
+      value = this.resolvePipelineOperator(value, pipelines);
+    }
+
     return value;
   };
 

package.json

@@ -1,6 +1,6 @@
 {
-  "name": "mustache",
-  "version": "3.0.1",
+  "name": "terun-mustache",
+  "version": "3.0.3",
   "description": "Logic-less {{mustache}} templates with JavaScript",
   "author": "mustache.js Authors <http://github.com/janl/mustache.js>",
   "homepage": "https://github.com/janl/mustache.js",
@@ -44,7 +44,7 @@
     "eslint": "2.5.1",
     "jshint": "^2.9.5",
     "mocha": "^3.0.2",
-    "uglify-js": "^3.4.6",
+    "uglify-js": "^3.4.6"
     "zuul": "^3.11.0",
     "zuul-ngrok": "nolanlawson/zuul-ngrok#patch-1"
   },

test/_files/cli_output.txt

@@ -0,0 +1 @@
+Howdy LeBron, CLI rox

test/_files/pipeline.js

@@ -0,0 +1,34 @@
+({
+  name: 'name',
+  job: {
+    name: 'Developer'
+  },
+  attributes:[
+    {
+      name: 'good',
+      options: [
+        'outgoing',
+        'shy'
+      ]
+    }
+  ],
+  numbers:[1,2,3],
+  sumOne:(value)=>{
+    return value + 1;
+  },
+  upper:(value)=>{
+    return value.toUpperCase()
+  },
+  lower: (value)=>{
+    return value.toLowerCase()
+  },
+  firstUpper:(value) =>{
+    value = value.split('')
+    value[0] = value[0].toUpperCase()
+    value = value.join('')
+    return value;
+  },
+  setNameFuncion:(value)=>{
+    return value + ": This is a value"
+  }
+})

test/_files/pipeline.mustache

@@ -0,0 +1,57 @@
+-- Use |
+{{name | upper}}
+{{name |upper}}
+{{name| upper}}
+{{name|upper}}
+{{name|underscore}}
+{{name|underscore  }}
+{{name|lower}}
+{{name |     lower}}
+{{name             |lower}}
+{{name             |lower | upper}}
+{{name             |lower | upper | lower | upper}}
+{{name             |lower | firstUpper}}
+{{name             | upper | firstUpper}}
+{{job.name | upper}}
+{{job.name | lower | firstUpper}}
+{{#numbers}}
+{{. | sumOne}}
+{{/numbers}}
+{{#numbers}}
+{{. | sumOne | setNameFuncion}}
+{{/numbers}}
+{{#numbers}}
+{{. | sumOne | setNameFuncion | lower}}
+{{/numbers}}
+-- Use |>
+{{name |> upper}}
+{{name |>upper}}
+{{name|> upper}}
+{{name|>upper}}
+{{name|>underscore}}
+{{name|>underscore  }}
+{{name|>lower}}
+{{name |>     lower}}
+{{name             |>lower}}
+{{name             |>lower |> upper}}
+{{name             |>lower |> upper |> lower |> upper}}
+{{name             |>lower |> firstUpper}}
+{{name             |> upper |> firstUpper}}
+{{job.name |> upper}}
+{{job.name |> lower |> firstUpper}}
+{{#numbers}}
+{{. |> sumOne}}
+{{/numbers}}
+{{#numbers}}
+{{. |> sumOne |> setNameFuncion}}
+{{/numbers}}
+{{#numbers}}
+{{. |> sumOne |> setNameFuncion |> lower}}
+{{/numbers}}
+-- Level Array
+{{#attributes}}
+{{#options}}
+{{name |> upper}}
+{{. |> upper}}
+{{/options}}
+{{/attributes}}

test/_files/pipeline.txt

@@ -0,0 +1,55 @@
+-- Use |
+NAME
+NAME
+NAME
+NAME
+name
+name
+name
+name
+name
+NAME
+NAME
+Name
+NAME
+DEVELOPER
+Developer
+2
+3
+4
+2: This is a value
+3: This is a value
+4: This is a value
+2: this is a value
+3: this is a value
+4: this is a value
+-- Use |>
+NAME
+NAME
+NAME
+NAME
+name
+name
+name
+name
+name
+NAME
+NAME
+Name
+NAME
+DEVELOPER
+Developer
+2
+3
+4
+2: This is a value
+3: This is a value
+4: This is a value
+2: this is a value
+3: this is a value
+4: this is a value
+-- Level Array
+GOOD
+OUTGOING
+GOOD
+SHY