extends LineEdit

var oldtext = "" #initial for text save

func _ready():
	pass

func _on_LineEdit_text_changed(text):
	var regex = RegEx.new()
	var regexmatch = RegExMatch.new()
	regex.compile("\\d+") #pattern for all digit number

	if regex.search(text) == null or not text.is_valid_float(): #Check if the first character is null or not a float
		text = oldtext
		self.set_text(text) #set the text from previous line edit text
	elif regex.search(text) != null: #if else not a null
		regexmatch = regex.search(text) #place the result of search
		oldtext = text #save the text for next line edit
	pass