[vim/vim] :filter does not ignore case when 'ignorecase' is set (#7918)

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Gabriel Dupras

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Mar 1, 2021, 11:04:31 PM3/1/21
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Describe the bug
When 'ignorecase' is set I would expect :filter to ignore case in the pattern but it does not. If this is the intended behavior, I think it should be documented under :help :filter.

To Reproduce

  1. gvim --clean (or vim)
  2. :e a
  3. :e AA
  4. :filter a ls
  5. Only the file "a" is shown.

Expected behavior
I would expect both "a" and "AA" to appear in the output.

Environment:

  • Vim version: 8.2.2559
  • OS: Windows 10
  • Terminal: GUI

Additional context
As a workaround, I can do :filter /\ca/ ls to ignore case but I wish that was not necessary.

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Bram Moolenaar

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Mar 2, 2021, 1:34:04 PM3/2/21
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Having 'ignorecase' apply to :filter may not be desired by other users. It already applies to too many things.
As you mentioned, adding \c to the pattern has the desired effect.
I'll add a note that the pattern of :filter does not use 'ignorecase'.

Bram Moolenaar

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Mar 2, 2021, 1:34:05 PM3/2/21
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Closed #7918.

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