DOM tree modification functions

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

diff --git a/redakcja/static/js/wiki/xml-tools.coffee b/redakcja/static/js/wiki/xml-tools.coffee
new file mode 100644 (file)
index 0000000..66d04b3
--- /dev/null
+++ b/redakcja/static/js/wiki/xml-tools.coffee
@@ -0,0 +1,48 @@
+
+window.walk = (node, handler) ->
+  if handler.text
+    textHandler = handler.text
+  else
+    textHandler = handler
+
+  switch node.nodeType
+    when 1, 9, 11
+      child = node.firstChild
+      while child
+        nxt = child.nextSibling
+        walk(child, handler)
+        child = nxt
+    when 3
+      textHandler node
+
+
+window.wrapInTag = (regex, tagName) ->
+  fun = (node) ->
+    matches = []
+    while m = regex.exec(node.nodeValue)
+      matches.push [regex.lastIndex, m[0]]
+
+    matches.reverse()
+
+    for m in matches
+      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
+    node
+
+
+# window._test_xml_tools = ->
+#   p = new DOMParser()
+#   dom = p.parseFromString("<a><b>łuków</b><c>jakaś jeszcze ~</c></a>", 'text/xml')
+
+#   walk(dom.firstChild, wrapInTag(ALIEN_REGEX, 'alien'))
+#   dom
+
+
+# window.ALIEN_REGEX = /[^a-zA-Z0-9ąćęłńóśźżĄĆĘŁŃÓŚŹŻ\s<>«»\\*_!,:;?&%."'=#()\/-]+/g
+# " just for syntax coloring.