- A new method has been added to the Label class that allows processing text with a regular expression and adding DOM elements where matches occur. This new function can be used as a text_node_func in labels. An example of this new method is a function that parses the text looking for object IDs and displays links to show these objects in a popover.

See #75603

Author: novaxpro

src/elements/Label/Label.coffee

@@ -326,6 +326,45 @@ class CUI.Label extends CUI.DOMElement
 		append_text()
 		return nodes
 
+	# Let us specify a regex to parse the text and generate
+	# dom elements. suitable to use as text_node_func.
+	@parseWithRegex = (text, regexp, getElement) ->
+		nodes = []
+		lastIndex = 0
+
+		unless regexp.global
+			throw new Error "RegExp must have the /g flag"
+
+		# Reset in case it was used before
+		regexp.lastIndex = 0
+
+		while match = regexp.exec text
+			matchText = match[0]
+			matchIndex = match.index
+
+			# Append any text before this match as a text node
+			if matchIndex > lastIndex
+				preText = text.substring(lastIndex, matchIndex)
+				nodes.push CUI.dom.text(preText)
+
+			# Generate a node for the matched text the user needs to provide a getElement function
+			node = getElement(matchText, matchIndex, text)
+			if node?
+				nodes.push node
+			else
+				# If getElement returns null/undefined, fall back to plain text
+				nodes.push CUI.dom.text(matchText)
+
+			# Move past this match
+			lastIndex = regexp.lastIndex
+
+		# Append any remaining text after last match
+		if lastIndex < text.length
+			tail = text.substring(lastIndex)
+			nodes.push CUI.dom.text(tail)
+
+		return nodes
+
 
 
 CUI.defaults.class.Label = CUI.Label