hodgestar@912: """Fixer that changes expressions inside strings literals from u"..." to "...".
hodgestar@912: 
hodgestar@912: """
hodgestar@912: 
hodgestar@912: import re
hodgestar@912: from lib2to3 import fixer_base
hodgestar@912: 
hodgestar@912: _literal_re = re.compile(r"(.+?)\b[uU]([rR]?[\'\"])")
hodgestar@912: 
hodgestar@912: class FixUnicodeInStrings(fixer_base.BaseFix):
hodgestar@912: 
hodgestar@912:     PATTERN = "STRING"
hodgestar@912: 
hodgestar@912:     def transform(self, node, results):
hodgestar@912:         new = node.clone()
hodgestar@912:         new.value = _literal_re.sub(r"\1\2", new.value)
hodgestar@912:         return new