funced dosn't like backslash escapes in function names #8289
Description
I'm probably abusing fish here,
but funced dosn't work if I have a function name with a \ escape in it.
E.g.
function \\
status function
end
\\ # prints '\' as expected
funcsave \\ # creates a file `~/.config/fish/functions/\.fish`
functions \\ # prints the function definition
funced \\ # opens vim in a new blank file called "/tmp/fish.MeJ0Vw/.fish"
But funced \\ breaks, it opens a new blank vim window, the status bar says "/tmp/fish.MeJ0Vw/.fish [New]", and then saving this files gives an error:
Editor exited but the function was not modified
rmdir: failed to remove '/tmp/fish.MeJ0Vw': Directory not empty
Wierder things happen with other escape sequences:
$ funced \' # funced \" is similar
/usr/share/fish/functions/funced.fish (line 1): Unexpected end of string, quotes are not balanced
vim /tmp/fish.Yef3x9/'.fish
^
in function 'funced' with arguments '\''
Editing failed or was cancelled
funced \n for some reason opens vim with "/tmp/fish.GLuG8w/" is a directory:
" ============================================================================
" Netrw Directory Listing (netrw v170)
" /tmp/fish.GLuG8w
" Sorted by name
" Sort sequence: [\/]$,\<core\%(\.\d\+\)\=\>,\.h$,\.c$,\.cpp$,\~\=\*$,*,\.o$,\.obj$,\.info$,\.swp$,\.bak$,\~$
" Quick Help: <F1>:help -:go up dir D:delete R:rename s:sort-by x:special
" ==============================================================================
../
./
.fish
Closing vim then gives:
.fish: command not found
/usr/share/fish/functions/funced.fish (line 2):
.fish
^
in function 'funced' with arguments '\n'
Editing failed or was cancelled
Using \r, \t, or \v behaves similarly.
Also \x00 dosn't work, but that makes sense as you can't have a filename with that in it.
Otherwise, funced seems to work on other \ escape sequences.