wrong alias definition when command contains a metacharacter (like "+" or backslash)

[Dieken]

fish 3.3.1, macOS Monterey, 12.0.1

$ alias g++ 'grc g++'

$ alias | fgrep g++
alias g++ 'g++ grc g++'

$ alias 'g\+\+' 'grc g++'

$ alias | fgrep g++
alias g++ g\\\\+\\\\+\\\ grc\\\ g++

[faho]

The only thing broken here is alias display.

The actual function definition is correct. See type g++.

[Dieken]

Thanks for your confirmation!

Another minor issue, in bash and zsh, I can use alias xxx to get alias definition, could fish support this too? Currently I have to use alias | string match “alias xxx *”.

[faho]

Fish does not, in a very real sense, have aliases. alias is a function that defines functions.

You can just use functions xxx.

[Dieken]

You are right, fish alias is actually function.

$ alias
alias cp 'cp -i'
...

$ functions cp
# Defined in /Users/liuyb/.config/fish/functions/cp.fish @ line 2
function cp --description 'alias cp cp -i'
 command cp -i $argv; 
end

$ function xxx --description 'alias xxx yyy'; echo yyy; end

$ alias | grep xxx
alias xxx yyy

It's inconvenient to parse the output of functions cp for "cp -i", so I would like to have an alias cp that just outputs single alias definition in single line.