Completed parsec integration!

ihaskell-display/ihaskell-parsec/widget.html

@@ -4,10 +4,14 @@
 
 <!-- Parsec widget -->
 <script>
+// Only load this script once.
 var kernel = IPython.notebook.kernel;
 var initialized = kernel !== undefined && kernel != null;
 if (initialized && window.parsecWidgetRegistered === undefined) {
+
+// Do not load this script again.
 window.parsecWidgetRegistered = true;
+
 // Register the comm target.
 var ParsecWidget = function (comm) {
     this.comm = comm;

notebooks/Test.ipynb

@@ -40,7 +40,7 @@
       "    float = do\n",
       "      value <- many1 $ oneOf \"0123456789\"\n",
       "      char '.'\n",
-      "      after <- many $ oneOf \"0123456789\"\n",
+      "      after <- many1 $ oneOf \"0123456789\"\n",
       "      optional $ char ','\n",
       "      whitespace\n",
       "      return (read (value ++ \".\" ++ after) :: Float)\n",
@@ -70,10 +70,14 @@
         "\n",
         "<!-- Parsec widget -->\n",
         "<script>\n",
+        "// Only load this script once.\n",
         "var kernel = IPython.notebook.kernel;\n",
         "var initialized = kernel !== undefined && kernel != null;\n",
         "if (initialized && window.parsecWidgetRegistered === undefined) {\n",
+        "\n",
+        "// Do not load this script again.\n",
         "window.parsecWidgetRegistered = true;\n",
+        "\n",
         "// Register the comm target.\n",
         "var ParsecWidget = function (comm) {\n",
         "    this.comm = comm;\n",
@@ -121,11 +125,13 @@
         "    // Update every key press.\n",
         "    editor.on(\"keyup\", function() {\n",
         "        var text = editor.getDoc().getValue();\n",
+        "        console.log(\"Sent\",text); \n",
         "        comm.send({\"text\": text});\n",
         "    });\n",
         "};\n",
         "\n",
         "ParsecWidget.prototype.handler = function(msg) {\n",
+        "    console.log(\"Handler\", msg); \n",
         "    var data = msg.content.data;\n",
         "    this.hasError = data[\"status\"] == \"error\";\n",
         "    if (this.hasError) {\n",
@@ -171,10 +177,14 @@
         "\n",
         "<!-- Parsec widget -->\n",
         "<script>\n",
+        "// Only load this script once.\n",
         "var kernel = IPython.notebook.kernel;\n",
         "var initialized = kernel !== undefined && kernel != null;\n",
         "if (initialized && window.parsecWidgetRegistered === undefined) {\n",
+        "\n",
+        "// Do not load this script again.\n",
         "window.parsecWidgetRegistered = true;\n",
+        "\n",
         "// Register the comm target.\n",
         "var ParsecWidget = function (comm) {\n",
         "    this.comm = comm;\n",
@@ -222,11 +232,13 @@
         "    // Update every key press.\n",
         "    editor.on(\"keyup\", function() {\n",
         "        var text = editor.getDoc().getValue();\n",
+        "        console.log(\"Sent\",text); \n",
         "        comm.send({\"text\": text});\n",
         "    });\n",
         "};\n",
         "\n",
         "ParsecWidget.prototype.handler = function(msg) {\n",
+        "    console.log(\"Handler\", msg); \n",
         "    var data = msg.content.data;\n",
         "    this.hasError = data[\"status\"] == \"error\";\n",
         "    if (this.hasError) {\n",
@@ -253,7 +265,7 @@
        "output_type": "display_data"
       }
      ],
-     "prompt_number": 2
+     "prompt_number": 3
     },
     {
      "cell_type": "code",