Python: Fix r"\\" and derivatives
In such cases, the last \ should not be interpreted
as a line continuation escape.
This regression was introduced by 14c8f976 and made more obvious by 90f56236.
New regression tests are added for most variants, e.g. rb"""\\"""
The correct highlighting should be:
a = r"\\" \
rb'\\' \
rf"""\\""" \
ur'''\\'''
def should_not_be_inside_string():
print('''test''' + """string""")Edited by Jan Paul Batrina