IronLanguages / IronLanguages/ironpython3

re.ASCII flag can be set within the scope of a group

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module-re What's New In Python 3.7
Dominant language
C#
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Description

The re.ASCII flag (as well as re.LOCALE and re.UNICODE) can be set within the scope of a group. For example the (?a:[_a-z][_a-z0-9]*) pattern is used in the string module in Python 3.7.

https://docs.python.org/3/whatsnew/3.7.html#re

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the implementation and tests for Python's re behavior and the string module usage described in the report. Compare support for scoped (?a:...), (?L:...), and (?u:...) flags with the Python 3.7 documentation. Done means these flags work within a group and the behavior has regression coverage.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, python
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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