Move HtmlGenerator to its own module

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/html-generator.js b/lib/html-generator.js
new file mode 100644
index 0000000..247ca09
--- /dev/null
+++ b/lib/html-generator.js
@@ -0,0 +1,56 @@
+var util = require("util");
+
+exports.HtmlGenerator = HtmlGenerator;
+
+
+function HtmlGenerator() {
+    var stack = [];
+    var fragments = [];
+    
+    function text(value) {
+        fragments.push(escapeHtml(value))
+    }
+    
+    function asString() {
+        popAll();
+        return fragments.join("");
+    }
+    
+    function style(style) {
+        popAll();
+        style.forEach(function(tagName) {
+            push(tagName);
+        });
+    }
+    
+    function push(element) {
+        stack.push(element);
+        fragments.push(util.format("<%s>", element));
+    }
+    
+    function pop() {
+        var element = stack.pop();
+        fragments.push(util.format("</%s>", element));
+    }
+    
+    function popAll() {
+        while (stack.length > 0) {
+            pop();
+        }
+    }
+    
+    return {
+        style: style,
+        text: text,
+        asString: asString
+    };
+}
+
+
+function escapeHtml(value) {
+    return value
+        .replace(/&/g, '&amp;')
+        .replace(/"/g, '&quot;')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;');
+}