GH-72904: Simplify implementation of fnmatch.translate()
#109879
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Use `re.Scanner` to scan shell-style patterns, rather than parsing them by hand in a fat loop. This makes the code slower (!) but more obvious, and lays some groundwork for a future `glob.translate()` function.
What are the benchmarks for this? (i.e. are we talking 10μs to 20μs or 250ms to 500ms?) The regression in performance here may not matter if the translation is a sufficiently small part of any reasonable usecase. @serhiy-storchaka has been working on A |
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Withdrawing this PR - the performance isn't good enough. |
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Use
reto scan shell-style patterns, rather than parsing them by hand in a fat loop. This makes the code twice as slow (!) but arguably more obvious