@danielkalen/simplybind/src/misc/helpers-scanTextNodesPlaceholders.coffee

Magically simple, framework-less one-way/two-way data binding for frontend/backend in ~5kb.

addToNodeStore = (nodeStore, node, targetPlaceholder)->
	nodeStore[targetPlaceholder] ?= []
	nodeStore[targetPlaceholder].push(node)
	return


scanTextNodesPlaceholders = (element, nodeStore)->
	childNodes = Array::slice.call(element.childNodes)
	for node in childNodes
		if node.nodeType isnt 3 
			scanTextNodesPlaceholders(node, nodeStore)
		
		else if node.textContent.match(pholderRegExSplit)
			textContent = node.textContent
			textPieces = textContent.split(pholderRegEx)

			if textPieces.length is 3 and textPieces[0]+textPieces[2] is ''
				addToNodeStore(nodeStore, node, textPieces[1])
			else
				newFragment = document.createDocumentFragment()

				for textPiece,index in textPieces
					newNode = newFragment.appendChild document.createTextNode(textPiece)
					if index % 2 # is an odd index, indicating that before this text piece should come a placeholder node
						addToNodeStore(nodeStore, newNode, textPiece)

				node.parentNode.replaceChild(newFragment, node)

	return