[vim/vim] Very weird bug in :cdo (Issue #13330)
trebestie
Steps to reproduce
Consider a simple file cdotest.txt
one two three
one two three
one two three
one two three
run a
:grep three cdotest.txt
then
:cdo s/three/four
:cdo s/three/Sthree
:cdo 2,$s/three/four
work well
while
:cdo 2,$s/three/Sthree or
:cdo 2,3s/three/Sthree
fail
one two three
one two SSSSthree
one two SSSSthree
one two SSSSthree
It looks like the bug occur only if you operate in a range prepend something to the matching pattern
Neovim has the same behaviour
Expected behaviour
The right output
Version of Vim
vim 9.0
Environment
VoidLinux
Logs and stack traces
No response
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Nick Jensen
This isn't a bug. :cdo runs a command on each quickfix entry. You have 4 quickfix entries.
Your first command :cdo s/three/four runs that substitution on each quickfix entry line. The range is not specified so it just runs on the line of the quickfix entry.
The later commands still run for each quickfix entry but you manually set the range to something else, so it runs 4 times on the range you have set.
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trebestie
Thanks,
but...
- why
:cdo 2,$s/three/fourreplacesthreewithfourfrom the second line to the end as expected? - is
:cdo' the right command to perform such kind of replacement?can't :cdo` work in a range?
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EdwardMG
why :cdo 2,$s/three/four replaces three with four from the second line to the end as expected?
In this case, three no longer exists in the buffer, so the next 3 times it runs nothing happens because no three exists to substitute. In your surprise case, you substitution itself contains the expression you searched for, so it happens 3 more times three -> Sthree -> SSthree etc.
Hope that helps you :)
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trebestie
thank you all
Il giorno ven 13 ott 2023 alle ore 01:50 EdwardMG ***@***.***>
ha scritto:
> why :cdo 2,$s/three/four replaces three with four from the second line to
> the end as expected?
>
> In this case, three no longer exists in the buffer, so the next 3 times
> it runs nothing happens because no three exists to substitute. In your
> surprise case, you substitution itself contains the expression you searched
> Hope that helps you :)
>
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Christian Brabandt
this seems to be no issue, so let me close it
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Christian Brabandt
Closed #13330 as not planned.
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