Clipboard modification on copy by regex?

[Andreas_Hegenberg]

3.354 alpha now has a trigger for this, which can be combined with some simple BTT Java Script:

async function someJavaScriptFunction() {
		let clip = await get_clipboard_content();
		let clipTransformed = clip.toUpperCase();
		
		await set_clipboard_content(clipTransformed);
		
		return clipTransformed;
}