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sort/ls: implement version cmp matching GNU spec

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This reimplements version_cmp, which is used in sort and ls to sort
according to versions.
However, it is not bug-for-bug identical with GNU's implementation.
I reported a bug with GNU here:
https://lists.gnu.org/archive/html/bug-coreutils/2021-06/msg00045.html
This implementation does not contain the bugs regarding the handling of
file extensions and null bytes.
This commit is contained in:
Michael Debertol 2021-06-27 12:52:46 +02:00
parent 5fce7ecbaa
commit 233a778963
12 changed files with 423 additions and 360 deletions
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4
tests/fixtures/sort/version-empty-lines.expected vendored
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@ -8,4 +8,8 @@
1.2.3-alpha
1.2.3-alpha2
11.2.3
bar2
bar2.0.0
foo0.1
foo1.0
1.12.4

45
tests/fixtures/sort/version-empty-lines.expected.debug vendored Normal file
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@ -0,0 +1,45 @@
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
^ no match for key
1.2.3-alpha
___________
___________
1.2.3-alpha2
____________
____________
11.2.3
______
______
bar2
____
____
bar2.0.0
________
________
foo0.1
______
______
foo1.0
______
______
>>>1.12.4
_________
_________

4
tests/fixtures/sort/version-empty-lines.txt vendored
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@ -9,3 +9,7 @@
1.12.4
foo1.0
foo0.1
bar2.0.0
bar2