get the handlebars engine file out of the past and into the present;

change mustache strings to handlebars

Author: geoffp

lib/engine_handlebars.js

@@ -0,0 +1,82 @@
+/*
+ * handlebars pattern engine for patternlab-node - v0.15.1 - 2015
+ *
+ * Geoffrey Pursell, Brian Muenzenmeyer, and the web community.
+ * Licensed under the MIT license.
+ *
+ * Many thanks to Brad Frost and Dave Olsen for inspiration, encouragement, and advice.
+ *
+ */
+
+/*
+ * ENGINE SUPPORT LEVEL:
+ *
+ * Full. Partial calls and lineage hunting are supported. Handlebars does not
+ * support the mustache-specific syntax extensions, style modifiers and pattern
+ * parameters, because their use cases are addressed by the core Handlebars
+ * feature set.
+ *
+ */
+
+"use strict";
+
+var Handlebars = require('handlebars');
+
+var engine_handlebars = {
+  engine: Handlebars,
+  engineName: 'handlebars',
+  engineFileExtension: '.hbs',
+
+  // partial expansion is only necessary for Mustache templates that have
+  // style modifiers or pattern parameters (I think)
+  expandPartials: false,
+
+  // regexes, stored here so they're only compiled once
+  findPartialsRE: /{{#?>\s*([\w-\/.]+)(?:.|\s+)*?}}/g,
+  findListItemsRE: /({{#( )?)(list(I|i)tems.)(one|two|three|four|five|six|seven|eight|nine|ten|eleven|twelve|thirteen|fourteen|fifteen|sixteen|seventeen|eighteen|nineteen|twenty)( )?}}/g,
+
+  // render it
+  renderPattern: function renderPattern(template, data, partials) {
+    if (partials) {
+      Handlebars.registerPartial(partials);
+    }
+    var compiled = Handlebars.compile(template);
+    return compiled(data);
+  },
+
+  registerPartial: function (oPattern) {
+    Handlebars.registerPartial(oPattern.key, oPattern.template);
+  },
+
+  // find and return any {{> template-name }} within pattern
+  findPartials: function findPartials(pattern) {
+    var matches = pattern.template.match(this.findPartialsRE);
+    return matches;
+  },
+  findPartialsWithStyleModifiers: function () {
+    // TODO: make the call to this from oPattern objects conditional on their
+    // being implemented here.
+    return [];
+  },
+
+  // returns any patterns that match {{> value(foo:"bar") }} or {{>
+  // value:mod(foo:"bar") }} within the pattern
+  findPartialsWithPatternParameters: function () {
+    // TODO: make the call to this from oPattern objects conditional on their
+    // being implemented here.
+    return [];
+  },
+  findListItems: function (pattern) {
+    var matches = pattern.template.match(this.findListItemsRE);
+    return matches;
+  },
+
+  // given a pattern, and a partial string, tease out the "pattern key" and
+  // return it.
+  findPartialKey: function (partialString) {
+    var partialKey = partialString.replace(this.findPartialsRE, '$1');
+    return partialKey;
+  }
+};
+
+module.exports = engine_handlebars;

lib/engine_mustache.js

@@ -1,25 +1,24 @@
 {
-  "name": "patternengine-node-mustache",
-  "description": "The Mustache engine for Pattern Lab / Node",
+  "name": "patternengine-node-handlebars",
+  "description": "The Handlebars engine for Pattern Lab / Node",
   "version": "1.0.0",
-  "main": "lib/engine_mustache.js",
+  "main": "lib/engine_handlebars.js",
   "dependencies": {
-    "mustache": "^2.2.0"
-  },
-  "devDependencies": {
+    "handlebars": "^4.0.5"
   },
+  "devDependencies": {},
   "keywords": [
     "Pattern Lab",
     "Atomic Web Design",
     "Node",
     "Grunt",
     "Gulp",
     "Javascript",
-    "Mustache"
+    "Handlebars"
   ],
   "repository": {
     "type": "git",
-    "url": "https://github.com/pattern-lab/patternengine-node-mustache.git"
+    "url": "https://github.com/pattern-lab/patternengine-node-handlebars.git"
   },
   "bugs": "https://github.com/pattern-lab/patternlab-node/issues",
   "author": "Brian Muenzenmeyer & Geoffrey Pursell",