Remove some unused shit and write tests for coverage

processor/luahelper.lua

@@ -485,6 +485,79 @@ function setAttr(element, attrName, value)
 	element._attr[attrName] = tostring(value)
 end
 
+--- Find first element with a specific tag name (searches direct children only)
+--- @param parent table The parent XML element
+--- @param tagName string The tag name to search for
+--- @return table|nil The first matching element or nil
+function findFirstElement(parent, tagName)
+	if not parent._children then return nil end
+	for _, child in ipairs(parent._children) do
+		if child._tag == tagName then
+			return child
+		end
+	end
+	return nil
+end
+
+--- Add a child element to a parent
+--- @param parent table The parent XML element
+--- @param child table The child element to add
+function addChild(parent, child)
+	if not parent._children then
+		parent._children = {}
+	end
+	table.insert(parent._children, child)
+end
+
+--- Remove all children with a specific tag name
+--- @param parent table The parent XML element
+--- @param tagName string The tag name to remove
+--- @return number Count of removed children
+function removeChildren(parent, tagName)
+	if not parent._children then return 0 end
+	local removed = 0
+	local i = 1
+	while i <= #parent._children do
+		if parent._children[i]._tag == tagName then
+			table.remove(parent._children, i)
+			removed = removed + 1
+		else
+			i = i + 1
+		end
+	end
+	return removed
+end
+
+--- Get all direct children with a specific tag name
+--- @param parent table The parent XML element
+--- @param tagName string The tag name to search for
+--- @return table Array of matching children
+function getChildren(parent, tagName)
+	local results = {}
+	if not parent._children then return results end
+	for _, child in ipairs(parent._children) do
+		if child._tag == tagName then
+			table.insert(results, child)
+		end
+	end
+	return results
+end
+
+--- Count children with a specific tag name
+--- @param parent table The parent XML element
+--- @param tagName string The tag name to count
+--- @return number Count of matching children
+function countChildren(parent, tagName)
+	if not parent._children then return 0 end
+	local count = 0
+	for _, child in ipairs(parent._children) do
+		if child._tag == tagName then
+			count = count + 1
+		end
+	end
+	return count
+end
+
 -- ============================================================================
 -- JSON HELPER FUNCTIONS
 -- ============================================================================