first crack at v0 configuration adaptor

js/ConfigAdaptor/JB_json_v0.js

@@ -0,0 +1,52 @@
+var ConfigAdaptor; if( !ConfigAdaptor ) ConfigAdaptor = {};
+
+/**
+ * Configuration adaptor for JBrowse JSON version 0
+ * <code>trackInfo.js</code> files.
+ * @class
+ * @extends ConfigAdaptor.JB_json_v1
+ */
+ConfigAdaptor.JB_json_v0 = function() {
+};
+ConfigAdaptor.JB_json_v0.prototype = new ConfigAdaptor.JB_json_v1();
+
+/**
+ * Munge the v0 configuration to conform to v1.
+ *
+ * @param {Object} o the object containing the configuration, which it
+ *                   modifies in-place
+ * @param {Object} load_args the arguments that were passed to <code>load()</code>
+ * @returns {Object} v1-compliant configuration
+ */
+ConfigAdaptor.JB_json_v0.prototype.regularize_conf = function( o, load_args ) {
+
+    console.log(o);
+
+    // transform the object to conform to format version 1
+    o = { tracks: o };
+    dojo.forEach( o.tracks, function( trackdef ) {
+        if( 'url' in trackdef ) {
+            trackdef.urlTemplate = trackdef.url;
+            //trackdef.urlTemplate = trackdef.url.replace(/\{refseq\}\/([^/]+)/, "$1/{refseq}");
+            delete trackdef.url;
+        }
+    });
+
+    console.log(o);
+
+    return ConfigAdaptor.JB_json_v1.prototype.regularize_conf.call( this, o, load_args );
+};
+
+/**
+ * Parse the trackInfo.js configuration text into JSON.
+ *
+ * @param {String} conf_text the text in the conf file
+ * @returns {Object} parsed JSON
+ */
+ConfigAdaptor.JB_json_v0.prototype.parse_conf = function( conf_text ) {
+    conf_text.replace( /^[^\{]+/, '' );
+    var conf;
+    return eval( 'conf = ' + conf_text );
+};
+
+