DOM tree modification functions

[redakcja.git] / redakcja / static / js / wiki / xml-tools.js

diff --git a/redakcja/static/js/wiki/xml-tools.js b/redakcja/static/js/wiki/xml-tools.js
new file mode 100644 (file)
index 0000000..db5da83
--- /dev/null
+++ b/redakcja/static/js/wiki/xml-tools.js
@@ -0,0 +1,51 @@
+(function() {
+
+  window.walk = function(node, handler) {
+    var child, nxt, textHandler, _results;
+    if (handler.text) {
+      textHandler = handler.text;
+    } else {
+      textHandler = handler;
+    }
+    switch (node.nodeType) {
+      case 1:
+      case 9:
+      case 11:
+        child = node.firstChild;
+        _results = [];
+        while (child) {
+          nxt = child.nextSibling;
+          walk(child, handler);
+          _results.push(child = nxt);
+        }
+        return _results;
+        break;
+      case 3:
+        return textHandler(node);
+    }
+  };
+
+  window.wrapInTag = function(regex, tagName) {
+    var fun;
+    return fun = function(node) {
+      var alien, frm, m, matches, node_rest, to, wrapper, _i, _len;
+      matches = [];
+      while (m = regex.exec(node.nodeValue)) {
+        matches.push([regex.lastIndex, m[0]]);
+      }
+      matches.reverse();
+      for (_i = 0, _len = matches.length; _i < _len; _i++) {
+        m = matches[_i];
+        to = m[0];
+        frm = m[0] - m[1].length;
+        node_rest = node.splitText(to);
+        alien = node.splitText(frm);
+        wrapper = node.ownerDocument.createElement(tagName);
+        node.parentNode.insertBefore(wrapper, node_rest);
+        wrapper.appendChild(alien);
+      }
+      return node;
+    };
+  };
+
+}).call(this);