1 files changed, 42 insertions, 0 deletions
diff --git a/lib/python2.7/lib2to3/fixes/fix_unicode.py b/lib/python2.7/lib2to3/fixes/fix_unicode.py
new file mode 100644
index 0000000..2d776f6
--- /dev/null
+++ b/lib/python2.7/lib2to3/fixes/fix_unicode.py
@@ -0,0 +1,42 @@
+r"""Fixer for unicode.
+
+* Changes unicode to str and unichr to chr.
+
+* If "...\u..." is not unicode literal change it into "...\\u...".
+
+* Change u"..." into "...".
+
+"""
+
+from ..pgen2 import token
+from .. import fixer_base
+
+_mapping = {u"unichr" : u"chr", u"unicode" : u"str"}
+
+class FixUnicode(fixer_base.BaseFix):
+    BM_compatible = True
+    PATTERN = "STRING | 'unicode' | 'unichr'"
+
+    def start_tree(self, tree, filename):
+        super(FixUnicode, self).start_tree(tree, filename)
+        self.unicode_literals = 'unicode_literals' in tree.future_features
+
+    def transform(self, node, results):
+        if node.type == token.NAME:
+            new = node.clone()
+            new.value = _mapping[node.value]
+            return new
+        elif node.type == token.STRING:
+            val = node.value
+            if not self.unicode_literals and val[0] in u'\'"' and u'\\' in val:
+                val = ur'\\'.join([
+                    v.replace(u'\\u', ur'\\u').replace(u'\\U', ur'\\U')
+                    for v in val.split(ur'\\')
+                ])
+            if val[0] in u'uU':
+                val = val[1:]
+            if val == node.value:
+                return node
+            new = node.clone()
+            new.value = val
+            return new