Commit Graph

15 Commits

Author SHA1 Message Date
Batuhan Taskaya
7a29568115
Don't make redundant copies of the DFA (#2763) 2022-01-13 18:01:44 -08:00
Felix Hildén
799f76f537
Normalise string prefix order (#2297)
Closes #2171
2022-01-13 09:59:43 -08:00
Batuhan Taskaya
0f26a0369e
Fix handling of standalone match/case with newlines/comments (#2760)
Resolves #2759
2022-01-10 12:22:07 -08:00
Batuhan Taskaya
3e731527e4
Speed up new backtracking parser (#2728) 2022-01-10 10:22:00 -08:00
Batuhan Taskaya
28ab82aab0
perf: drop the initial stack copy (#2670)
Co-authored-by: Richard Si <63936253+ichard26@users.noreply.github.com>
2021-12-05 13:03:48 -08:00
Jelle Zijlstra
5e2bb528e0
Reduce usage of regex (#2644)
This removes all but one usage of the `regex` dependency. Tricky bits included:
- A bug in test_black.py where we were incorrectly using a character range. Fix also submitted separately in #2643.
- `tokenize.py` was the original use case for regex (#1047). The important bit is that we rely on `\w` to match anything valid in an identifier, and `re` fails to match a few characters as part of identifiers. My solution is to instead match all characters *except* those we know to mean something else in Python: whitespace and ASCII punctuation. This will make Black able to parse some invalid Python programs, like those that contain non-ASCII punctuation in the place of an identifier, but that seems fine to me.
- One import of `regex` remains, in `trans.py`. We use a recursive regex to parse f-strings, and only `regex` supports that. I haven't thought of a better fix there (except maybe writing a manual parser), so I'm leaving that for now.

My goal is to remove the `regex` dependency to reduce the risk of breakage due to dependencies and make life easier for users on platforms without wheels.
2021-11-30 18:01:36 -08:00
Richard Si
117891878e
Implementing mypyc support pt. 2 (#2431) 2021-11-15 20:24:16 -08:00
Batuhan Taskaya
1e0ec543ff
black/parser: partial support for pattern matching (#2586)
Partial implementation for #2242. Only works when explicitly stated -t py310.

Co-authored-by: Richard Si <63936253+ichard26@users.noreply.github.com>
2021-11-13 19:15:31 -08:00
Richard Si
0753d99519
Improve Python 2 only syntax detection (GH-2592)
* Improve Python 2 only syntax detection

First of all this fixes a mistake I made in Python 2 deprecation PR
using token.* to check for print/exec statements. Turns out that
for nodes with a type value higher than 256 its numeric type isn't
guaranteed to be constant. Using syms.* instead fixes this.

Also add support for the following cases:

    print "hello, world!"

    exec "print('hello, world!')"

    def set_position((x, y), value):
        pass

    try:
        pass
    except Exception, err:
        pass

    raise RuntimeError, "I feel like crashing today :p"

    `wow_these_really_did_exist`

    10L

* Add octal support, more test cases, and fixup long ints

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
2021-11-11 20:28:48 -05:00
Richard Si
b21c0c3d28
Deprecate Python 2 formatting support (#2523)
* Prepare for Python 2 depreciation

- Use BlackRunner and .stdout in command line test

So the next commit won't break this test. This is in its own commit so
we can just revert the depreciation commit when dropping Python 2
support completely.

* Deprecate Python 2 formatting support
2021-10-31 16:46:12 -07:00
Hadi Alqattan
b3ceb293d9
Remove unused import statements using Pycln. (#2021)
* remove unused imports using Pycln.

* reverse comma style.
2021-03-05 11:58:00 -08:00
Taneli Hukkinen
966baaacbc
Only require typing-extensions if Python < 3.8 (#1873) 2021-01-03 08:14:59 -08:00
Bryan Bugyi
e3ccabb23c
Fix unstable formatting on string split + % formatting (#1680)
Fixes #1595
2020-09-05 17:24:00 -07:00
Łukasz Langa
788268bc39 Re-implement magic trailing comma handling:
- when a trailing comma is specified in any bracket pair, that signals to Black
  that this bracket pair needs to be always exploded, e.g. presented as "one
  item per line";

- this causes some changes to previously formatted code that erroneously left
  trailing commas embedded into single-line expressions;

- internally, Black needs to be able to identify trailing commas that it put
  itself compared to pre-existing trailing commas. We do this by using/abusing
  lib2to3's `was_checked` attribute.  It's True for internally generated
  trailing commas and False for pre-existing ones (in fact, for all
  pre-existing leaves and nodes).

Fixes #1288
2020-08-21 16:45:30 +02:00
Cooper Lees
2082a325fd
Refactor black into packages in src/ dir (#1376)
- Move black.py to src/black/__init__.py
- Have setuptools_scm make src/_black_version.py and exclude from git
- Move blackd.py to src/blackd/__init__.py
- Move blib2to3/ to src/
- Update `setup.py`
- Update unittests to pass
  - Mostly path fixing + resolving
- Update CI
  - pre-commit config
  - appveyor + travis

Tested on my mac with python 3.7.5 via:
```
python3 -m venv /tmp/tb3
/tmp/tb3/bin/pip install --upgrade setuptools pip coverage pre-commit
/tmp/tb2/bin/pip install ~/repos/black/
cd ~/repos/black/
/tmp/tb2/bin/coverage run tests/test_black.py
/tmp/tb3/bin/pre-commit run -a
/tmp/tb3/bin/black --help
/tmp/tb3/bin/black ~/repos/ptr/ptr.py
```
2020-05-08 08:50:50 -07:00