mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-22 22:14:49 +08:00
1bba97984b
You can use an index with vared, like `vared PATH[4]`. However this was
inadverently broken in fa2450db30, because you cannot use `read` to
modify an element of a variable, only the whole variable. Fix this.
Unfortunately this means using another local variable, so we name it
__fish_vared_temp_value instead of just temp so that collisions are
unlikely.
47 lines
2.1 KiB
Fish
47 lines
2.1 KiB
Fish
#
|
|
# This is a neat function, stolen from zsh. It allows you to edit the
|
|
# value of a variable interactively.
|
|
#
|
|
|
|
function vared --description "Edit variable value"
|
|
if test (count $argv) = 1
|
|
switch $argv
|
|
|
|
case -h --h --he --hel --help
|
|
__fish_print_help vared
|
|
return 0
|
|
|
|
case '-*'
|
|
printf (_ "%s: Unknown option %s\n") vared $argv >&2
|
|
return 1
|
|
|
|
case '*'
|
|
if test (count $$argv ) -lt 2
|
|
# Try to avoid using local variables in this function, otherwise they can't be edited.
|
|
# https://github.com/fish-shell/fish-shell/issues/8836
|
|
# However we need to use one local, as you can't read directly into an index (like vared PATH[4]).
|
|
set -l __fish_vared_temp_value
|
|
|
|
# The command substitution in this line controls the scope.
|
|
# If variable already exists, do not add any switches, so we don't change
|
|
# scoping or export rules. But if it does not exist, we make the variable
|
|
# global, so that it will not die when this function dies.
|
|
|
|
read -p 'set_color green; echo '$argv'; set_color normal; echo "> "' \
|
|
(if not set -q $argv; echo -g; end) \
|
|
-c "$$argv" \
|
|
__fish_vared_temp_value
|
|
if test -n "$$argv"
|
|
set $argv $__fish_vared_temp_value
|
|
else
|
|
set -g $argv $__fish_vared_temp_value
|
|
end
|
|
else
|
|
printf (_ '%s: %s is an array variable. Use %svared%s %s[n]%s to edit the n:th element of %s\n') vared $argv (set_color $fish_color_command; echo) (set_color $fish_color_normal; echo) $argv (set_color normal; echo) $argv >&2
|
|
end
|
|
end
|
|
else
|
|
printf (_ '%s: Expected exactly one argument, got %s.\n\nSynopsis:\n\t%svared%s VARIABLE\n') vared (count $argv) (set_color $fish_color_command; echo) (set_color $fish_color_normal; echo) >&2
|
|
end
|
|
end
|