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MAINT: char class regex simplify (#50294)

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Summary:
* remove some cases of single characters in
character classes--these can incur the overhead
of a character class with none of the benefits
of a multi-character character class

* for more details, see Chapter 6 of:
Friedl, Jeffrey. Mastering Regular Expressions. 3rd ed.,
O’Reilly Media, 2009.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/50294

Reviewed By: zhangguanheng66

Differential Revision: D25870912

Pulled By: malfet

fbshipit-source-id: 9be5be9ed11fd49876213f0be8121b24739f1c13
This commit is contained in:
Tyler Reddy
2021-01-13 08:43:05 -08:00
committed by Facebook GitHub Bot
parent 664126bab5
commit 4a2d3d1cfd
1 changed files with 1 additions and 1 deletions
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2
torch/utils/hipify/hipify_python.py
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@ -459,7 +459,7 @@ def replace_math_functions(input_string):
return output_string
RE_SYNCTHREADS = re.compile(r"[:]?[:]?\b(__syncthreads)\b(\w*\()")
RE_SYNCTHREADS = re.compile(r":?:?\b(__syncthreads)\b(\w*\()")
def hip_header_magic(input_string):