hodgestar@929: """Fixer that changes expressions inside strings literals from u"..." to "...".
hodgestar@929: 
hodgestar@929: """
hodgestar@929: 
hodgestar@929: import re
hodgestar@929: from lib2to3 import fixer_base
hodgestar@929: 
hodgestar@929: _literal_re = re.compile(r"(.+?)\b[uU]([rR]?[\'\"])")
hodgestar@929: 
hodgestar@929: class FixUnicodeInStrings(fixer_base.BaseFix):
hodgestar@929: 
hodgestar@929:     PATTERN = "STRING"
hodgestar@929: 
hodgestar@929:     def transform(self, node, results):
hodgestar@929:         new = node.clone()
hodgestar@929:         new.value = _literal_re.sub(r"\1\2", new.value)
hodgestar@929:         return new