mirror of
https://github.com/fish-shell/fish-shell
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c4593828f4
* commandline: Add --is-valid option to query whether it's syntactically complete
This means querying when the commandline is in a state that it could
be executed. Because our `execute` bind function also inserts a
newline if it isn't.
One case that's not handled right now: `execute` also expands
abbreviations, those can technically make the commandline invalid
again.
Unfortunately we have no real way to *check* without doing the
replacement.
Also since abbreviations are only available in command position when
you _execute_ them the commandline will most likely be valid.
This is enough to make transient prompts work:
```fish
function reset-transient --on-event fish_postexec
set -g TRANSIENT 0
end
function maybe_execute
if commandline --is-valid
set -g TRANSIENT 1
commandline -f repaint
else
set -g TRANSIENT 0
end
commandline -f execute
end
bind \r maybe_execute
```
and then in `fish_prompt` react to $TRANSIENT being set to 1.
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|---|---|---|
| .. | ||
| cmds | ||
| python_docs_theme | ||
| commands.rst | ||
| completions.rst | ||
| conf.py | ||
| design.rst | ||
| faq.rst | ||
| fish_for_bash_users.rst | ||
| fish_indent_lexer.py | ||
| index.rst | ||
| interactive.rst | ||
| language.rst | ||
| license.rst | ||
| relnotes.rst | ||
| tutorial.rst | ||