Mercurial > repos > guerler > springsuite
comparison planemo/lib/python3.7/site-packages/libfuturize/fixes/fix_oldstr_wrap.py @ 1:56ad4e20f292 draft
"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
| author | guerler |
|---|---|
| date | Fri, 31 Jul 2020 00:32:28 -0400 |
| parents | |
| children |
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| 0:d30785e31577 | 1:56ad4e20f292 |
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| 1 """ | |
| 2 For the ``future`` package. | |
| 3 | |
| 4 Adds this import line: | |
| 5 | |
| 6 from past.builtins import str as oldstr | |
| 7 | |
| 8 at the top and wraps any unadorned string literals 'abc' or explicit byte-string | |
| 9 literals b'abc' in oldstr() calls so the code has the same behaviour on Py3 as | |
| 10 on Py2.6/2.7. | |
| 11 """ | |
| 12 | |
| 13 from __future__ import unicode_literals | |
| 14 import re | |
| 15 from lib2to3 import fixer_base | |
| 16 from lib2to3.pgen2 import token | |
| 17 from lib2to3.fixer_util import syms | |
| 18 from libfuturize.fixer_util import (future_import, touch_import_top, | |
| 19 wrap_in_fn_call) | |
| 20 | |
| 21 | |
| 22 _literal_re = re.compile(r"[^uUrR]?[\'\"]") | |
| 23 | |
| 24 | |
| 25 class FixOldstrWrap(fixer_base.BaseFix): | |
| 26 BM_compatible = True | |
| 27 PATTERN = "STRING" | |
| 28 | |
| 29 def transform(self, node, results): | |
| 30 if node.type == token.STRING: | |
| 31 touch_import_top(u'past.types', u'oldstr', node) | |
| 32 if _literal_re.match(node.value): | |
| 33 new = node.clone() | |
| 34 # Strip any leading space or comments: | |
| 35 # TODO: check: do we really want to do this? | |
| 36 new.prefix = u'' | |
| 37 new.value = u'b' + new.value | |
| 38 wrapped = wrap_in_fn_call("oldstr", [new], prefix=node.prefix) | |
| 39 return wrapped |