Add #commaList helper.

[mkws-moved-to-github.git] / tools / htdocs / mkws.js

diff --git a/tools/htdocs/mkws.js b/tools/htdocs/mkws.js
index 1218c40..0638ee4 100644 (file)
--- a/tools/htdocs/mkws.js
+++ b/tools/htdocs/mkws.js
@@ -3,15 +3,6 @@
 
 "use strict"; // HTML5: disable for debug_level >= 2
 
-Handlebars.registerHelper('link', function(text, url) {
-  text = Handlebars.Utils.escapeExpression(text);
-  url  = Handlebars.Utils.escapeExpression(url);
-
-  var result = '<a href="' + url + '">' + text + '</a>';
-
-  return new Handlebars.SafeString(result);
-});
-
 // Set up namespace and some state.
 var mkws = {
     filters: [],
@@ -109,6 +100,60 @@ mkws.debug_function = function (string) {
 }
 var debug = mkws.debug_function; // local alias
 
+
+Handlebars.registerHelper('json', function(obj) {
+    return JSON.stringify(obj);
+});
+
+
+// We need {{attr '@name'}} because Handlebars can't parse {{@name}}
+Handlebars.registerHelper('attr', function(attrName) {
+    return this[attrName];
+});
+
+
+/*
+ * Use as follows: {{#if-any NAME1 having="NAME2"}}
+ * Applicable when NAME1 is the name of an array
+ * The guarded code runs only if at least one element of the NAME1
+ * array has a subelement called NAME2.
+ */
+Handlebars.registerHelper('if-any', function(items, options) {
+    var having = options.hash.having;
+    for (var i in items) {
+       var item = items[i]
+       if (!having || item[having]) {
+           return options.fn(this);
+       }
+    }
+    return "";
+});
+
+
+Handlebars.registerHelper('first', function(items, options) {
+    var having = options.hash.having;
+    for (var i in items) {
+       var item = items[i]
+       if (!having || item[having]) {
+           return options.fn(item);
+       }
+    }
+    return "";
+});
+
+
+Handlebars.registerHelper('commaList', function(items, options) {
+    var out = "";
+
+    for (var i in items) {
+       if (i > 0) out += ", ";
+       out += options.fn(items[i])
+    }
+
+    return out;
+});
+
+
 {
     /* default mkws config */
     var config_default = {