Panel.AppendText

From GMod Wiki

Function
Syntax	Panel:AppendText( String text )
Description:
Appends text to the panel
Returns:	nil
In Object:	Panel
Realm:
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Additional Notes

• Only appends, you need to change line manually.
• Handy helper override (if you don't know what and how it does what it does, don't use):

-- We don't want a newline appended right away as it takes an empty line, so we hack it up.
local appendNL=false
local AppendText=yourcontrol.AppendText
function yourcontrol:AppendText(txt)
	if appendNL then
		txt='\n'..txt
	end
	if txt:sub(-1)=="\n" then
		appendNL=true
		txt = txt:sub(1,txt:len()-1)
	else
		appendNL=false
	end
 
	AppendText(self,txt)
end