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48 lines
1.2 KiB
Fish
48 lines
1.2 KiB
Fish
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#
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# This is a neat function, stolen from zsh. It allows you to edit the
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# value of a variable interactively.
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#
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function vared -d (N_ "Edit variable value")
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if test (count $argv) = 1
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switch $argv
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case '-h' '--h' '--he' '--hel' '--help'
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help vared
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case '-*'
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printf (_ "%s: Unknown option %s\n") vared $argv
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case '*'
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if test (count $$argv ) -lt 2
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set init ''
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if test $$argv
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set -- init $$argv
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end
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set prompt 'set_color green; echo '$argv'; set_color normal; echo "> "'
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read -p $prompt -c $init tmp
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# If variable already exists, do not add any
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# switches, so we don't change export rules. But
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# if it does not exist, we make the variable
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# global, so that it will not die when this
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# function dies
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if test $$argv
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set -- $argv $tmp
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else
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set -g -- $argv $tmp
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end
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else
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printf (_ '%s: %s is an array variable. Use %svared%s %s[n] to edit the n:th element of %s\n') $argv (set_color $fish_color_command) (set_color $fish_color_normal) vared $argv $argv
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end
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end
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else
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printf (_ '%s: Expected exactly one argument, got %s.\n\nSynopsis:\n\t%svared%s VARIABLE\n') vared (count $argv) (set_color $fish_color_command) (set_color $fish_color_normal)
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end
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end
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