[vim/vim] :append in a block that is not executed reads its text as commands (PR #21331)

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h_east

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Sep 17, 2026, 9:00:23 AM (yesterday) Sep 17

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Problem:  Inside a block that is not executed, "if 0" for one, the text
          of ":append", ":insert" and ":change" is read as commands: the
          commands are not executed while skipping, so nothing reads the
          lines up to the ".".  A text line like "endif" then ends the
          block.  A ":source ++dryrun" has the same problem at the script
          level.
Solution: Execute the three commands while skipping, like ":function",
          and only read the lines up to the "." then.

related: #21257

You can view, comment on, or merge this pull request online at:

https://github.com/vim/vim/pull/21331

Commit Summary

6573587 :append in a block that is not executed reads its text as commands

File Changes

(3 files)

Patch Links:

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h_east

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Sep 17, 2026, 9:02:04 AM (yesterday) Sep 17

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h-east left a comment (vim/vim#21331)

@dkearns You said in #21257 (comment) that you had a patch for this, so I waited a few
days before opening this one. If you would rather submit your own, let me
know and I will close this PR.