Fixed bug in _cpr_response_prefix_re

Author: jonathanslenders

prompt_toolkit/inputstream.py

@@ -15,7 +15,7 @@
 _cpr_response_re = re.compile('^' + re.escape('\x1b[') + r'\d+;\d+R$')
 
 # Regex matching anything valid prefix of a CPR response.
-_cpr_response_prefix_re = re.compile('^' + re.escape('\x1b[') + r'($|\d)')
+_cpr_response_prefix_re = re.compile('^' + re.escape('\x1b[') + r'[\d;R]*$')
 
 
 class KeyPress(object):