[Python-checkins] r53173 - in sandbox/trunk/2to3: example.py fixes/fix_repr.py
guido.van.rossum
python-checkins at python.org
Thu Dec 28 22:31:19 CET 2006
Author: guido.van.rossum
Date: Thu Dec 28 22:31:18 2006
New Revision: 53173
Added:
sandbox/trunk/2to3/fixes/fix_repr.py (contents, props changed)
Modified:
sandbox/trunk/2to3/example.py
Log:
Add a fix for `x` -> repr(x).
Modified: sandbox/trunk/2to3/example.py
==============================================================================
--- sandbox/trunk/2to3/example.py (original)
+++ sandbox/trunk/2to3/example.py Thu Dec 28 22:31:18 2006
@@ -146,4 +146,17 @@
#
exec(code, ns1, ns2)
+def repr_examples():
+ x = `1 + 2`
+ #
+ y = `x`
+ #
+ z = `y`.__repr__()
+ #
+ x = `1, 2, 3`
+ #
+ x = `1 + `2``
+ #
+ x = `1, 2 + `3, 4``
+
# This is the last line.
Added: sandbox/trunk/2to3/fixes/fix_repr.py
==============================================================================
--- (empty file)
+++ sandbox/trunk/2to3/fixes/fix_repr.py Thu Dec 28 22:31:18 2006
@@ -0,0 +1,33 @@
+# Copyright 2006 Google, Inc. All Rights Reserved.
+# Licensed to PSF under a Contributor Agreement.
+
+"""Fixer that transforms `xyzzy` into repr(xyzzy)."""
+
+# Python imports
+import token
+
+# Local imports
+import pytree
+from fixes import basefix
+
+
+class FixRepr(basefix.BaseFix):
+
+ PATTERN = """
+ atom < '`' expr=any '`' >
+ """
+
+ def transform(self, node):
+ results = self.match(node)
+ assert results
+ expr = results["expr"].clone()
+ if expr.type == self.syms.testlist1:
+ expr = self.parenthesize(expr)
+ new = pytree.Node(self.syms.power,
+ (pytree.Leaf(token.NAME, "repr"),
+ pytree.Node(self.syms.trailer,
+ (pytree.Leaf(token.LPAR, "("),
+ expr,
+ pytree.Leaf(token.RPAR, ")")))))
+ new.set_prefix(node.get_prefix())
+ return new
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