liquid instance

index.js

@@ -2,9 +2,45 @@ const context = require('./context');
 const tokenizer = require('./tokenizer.js');
 const render = require('./render.js');
 const lexical = require('./lexical.js');
+const path = require("path");
+const fs = require('fs');
+const Tag = require('./tag.js');
+const Filter = require('./filter.js');
 
-exports.render = function(html, ctx){
-    return render(tokenizer(html), context.factory(ctx));
+const tagsPath = path.join(__dirname, "tags");
+const filtersPath = path.join(__dirname, "filters");
+
+var _engine = {
+    render: function(html, ctx) {
+        return this.doRender(tokenizer.parse(html), context.factory(ctx));
+    },
+    lexical,
+    registerFilter : function(name, filter){
+        return this.filter.register(name, filter);
+    },
+    registerTag : function(name, tag){
+        return this.filter.register(name, tag);
+    } 
 };
 
-exports.lexical = lexical;
+function factory(){
+    var engine = Object.create(_engine);
+    engine.tag = Tag();
+    engine.filter = Filter();
+    engine.doRender = render(engine.filter, engine.tag);
+
+    fs.readdirSync(tagsPath).map(function(f){
+        var match = /^(\w+)\.js$/.exec(f);
+        if(!match) return;
+        engine.tag.register(match[1], require("./tags/" + f));
+    });
+
+    fs.readdirSync(filtersPath).map(function(f){
+        var match = /^(\w+)\.js$/.exec(f);
+        if(!match) return;
+        engine.filter.register(match[1], require("./filters/" + f));
+    });
+    return engine;
+}
+
+module.exports = factory;