def backspace(self):
if self.now :
self.now.pop()
self.write(ac.backspace)
elif len(self.buf)>1 :
self.buf.pop()
self.now = self.buf[len(self.buf)-1]
self.write(ac.movey_p)
if len(self.now) : self.write(ac.movex(len(self.now)))
def rightalign(source):
return ac.movex(-len(source)) + source
def rightalign(source):
return ac.movex(-len(source)) + source
