This commit lets you check the manpage for a leading command by moving
the cursor over it, matching the behavior of tab complete.
It also lets you select the man page for the base of a two-part command
like `string match`.
The additional regex case is added because
`commandline -t` returns an empty string when the cursor is after a
space, e.g. at the end of 'sudo ', which the later checks don't handle.
This diagram shows the manpage picked for different cursor positions:
> sudo -Es time git commit -m foo
+-------++---++--++------------+
| || || || |
| || || |+------------+
| || || | git-commit
| || |+--+
| || | git
| |+---+
| | time
+-------+
sudo
man-db's man 2.7 as shipped in OpenSUSE fails to set a non-zero
exit code when invoked like "man ls-some/dir". This means
that we fail to display the man page if the commandline is
"ls some/dir". Work around this by never treating tokens
with slashes as subcommand.
This mostly fixes some wrong indents or replaces some stray tab indents.
I excluded alignment on purpose, because we have a whole bunch of code
that goes like
```fish
complete -c foo -n 'some-condition' -l someoption
complete -c foo -n 'some-longer-condition' -l someotheroption
```
and changing it seems like a larger thing and would include more
thrashing.
See #3622.
This commit adds a feature that after typing "git add" and pressing
"alt+h", the manpage for "git-add" instead of "git" would be displayed.
The new logic takes the first argument which doesn't start with a dash
and tries to display manpage for "command-argument"; it falls back to
"man command" it the first try doesn't succeed.
Fixes#3618.
I hate doing this but I am tired of touching a fish script as part of
some change and having `make style` radically change it. Which makes
editing fish scripts more painful than it needs to be. It is time to do
a wholesale reformatting of these scripts to conform to the documented
style as implemented by the `fish_indent` program.
Apparently, in zsh, Meta+H can be used to display the manpage for
the current command. This commit adds this zsh feature to fish shell.
The F1 keybinding is left, although it's now secondary according to
fish help, as some terminal emulators don't let the user press F1 key.
