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https://github.com/fish-shell/fish-shell
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1fbcb1ee9d
The abbr function doesn't have the possiblity to rename abbreviations. You have to delete the old one and create a new one. This commit adds this functionality and uses the syntax: abbr -r OLD_KEY NEW_KEY Fixes #2155.
200 lines
6.7 KiB
Fish
200 lines
6.7 KiB
Fish
function abbr --description "Manage abbreviations"
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# parse arguments
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set -l mode
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set -l mode_flag # the flag that was specified, for better errors
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set -l mode_arg
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set -l needs_arg no
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while set -q argv[1]
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set -l new_mode
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switch $argv[1]
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case '-h' '--help'
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__fish_print_help abbr
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return 0
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case '-a' '--add'
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set new_mode add
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set needs_arg multi
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case '-r' '--rename'
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set new_mode rename
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set needs_arg double
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case '-e' '--erase'
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set new_mode erase
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set needs_arg single
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case '-l' '--list'
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set new_mode list
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case '-s' '--show'
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set new_mode show
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case '--'
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set -e argv[1]
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break
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case '-*'
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printf ( _ "%s: invalid option -- %s\n" ) abbr $argv[1] >&2
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return 1
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case '*'
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break
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end
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if test -n "$mode" -a -n "$new_mode"
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# we're trying to set two different modes
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printf ( _ "%s: %s cannot be specified along with %s\n" ) abbr $argv[1] $mode_flag >&2
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return 1
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end
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set mode $new_mode
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set mode_flag $argv[1]
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set -e argv[1]
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end
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# If run with no options, treat it like --add if we have an argument, or
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# --show if we do not have an argument
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if not set -q mode[1]
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if set -q argv[1]
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set mode add
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set needs_arg multi
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else
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set mode show
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end
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end
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if test $needs_arg = single
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set mode_arg $argv[1]
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set needs_arg no
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set -e argv[1]
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else if test $needs_arg = double
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# Pull the two parameters from argv.
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# * leave argv non-empty, if there are more than two arguments
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# * leave needs_arg set to double if there is not enough arguments
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if set -q argv[1]
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set param1 $argv[1]
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set -e argv[1]
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if set -q argv[1]
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set param2 $argv[1]
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set needs_arg no
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set -e argv[1]
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end
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end
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else if test $needs_arg = multi
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set mode_arg $argv
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set needs_arg no
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set -e argv
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end
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if test $needs_arg != no
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printf ( _ "%s: option requires an argument -- %s\n" ) abbr $mode_flag >&2
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return 1
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end
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# none of our modes want any excess arguments
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if set -q argv[1]
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printf ( _ "%s: Unexpected argument -- %s\n" ) abbr $argv[1] >&2
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return 1
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end
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switch $mode
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case 'add'
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# Convert from old "key=value" syntax
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# TODO: This should be removed later
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if not set -q mode_arg[2]
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and string match -qr '^[^ ]+=' -- $mode_arg
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set mode_arg (string split "=" -- $mode_arg)
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end
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# Bail out early if the exact abbr is already in
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contains -- "$mode_arg" $fish_user_abbreviations
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and return 0
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set -l key $mode_arg[1]
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set -e mode_arg[1]
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set -l value "$mode_arg"
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# Because we later store "$key $value", there can't be any spaces in the key
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if string match -q "* *" -- $key
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printf ( _ "%s: abbreviation cannot have spaces in the key\n" ) abbr >&2
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return 1
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end
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if test -z "$value"
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printf ( _ "%s: abbreviation must have a value\n" ) abbr >&2
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return 1
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end
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if set -l idx (__fish_abbr_get_by_key $key)
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# erase the existing abbreviation
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set -e fish_user_abbreviations[$idx]
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end
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if not set -q fish_user_abbreviations
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# initialize as a universal variable, so we can skip the -U later
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# and therefore work properly if someone sets this as a global variable
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set -U fish_user_abbreviations
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end
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set fish_user_abbreviations $fish_user_abbreviations "$key $value"
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return 0
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case 'rename'
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set -l old_name $param1
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set -l new_name $param2
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# if the target name already exists, throw an error
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if set -l idx (__fish_abbr_get_by_key $new_name)
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printf ( _ "%s: abbreviation '%s' already exists, cannot rename\n" ) abbr $new_name >&2
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return 2
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end
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# Because we later store "$key $value", there can't be any spaces in the key
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if string match -q "* *" -- $new_name
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printf ( _ "%s: abbreviation cannot have spaces in the key\n" ) abbr >&2
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return 1
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end
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set -l idx (__fish_abbr_get_by_key $old_name)
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or begin
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printf ( _ "%s: no such abbreviation '%s'\n" ) abbr $old_name >&2
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return 2
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end
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set -l value (string split " " -m 1 -- $fish_user_abbreviations[$idx])[2]
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set fish_user_abbreviations[$idx] "$new_name $value"
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return 0
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case 'erase'
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if set -l idx (__fish_abbr_get_by_key $mode_arg)
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set -e fish_user_abbreviations[$idx]
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return 0
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else
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printf ( _ "%s: no such abbreviation '%s'\n" ) abbr $mode_arg >&2
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return 2
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end
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case 'show'
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for i in $fish_user_abbreviations
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set -l opt_double_dash
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set -l kv (string split " " -m 1 -- $i)
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set -l key $kv[1]
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set -l value $kv[2]
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# Check to see if either key or value has a leading dash
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# If so, we need to write --
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string match -q -- '-*' $key $value
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and set opt_double_dash '--'
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echo abbr $opt_double_dash (string escape -- $key $value)
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end
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return 0
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case 'list'
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for i in $fish_user_abbreviations
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set -l key (string split " " -m 1 -- $i)[1]
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printf "%s\n" $key
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end
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return 0
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end
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end
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function __fish_abbr_get_by_key
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if not set -q argv[1]
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echo "__fish_abbr_get_by_key: expected one argument, got none" >&2
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return 2
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end
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# Going through all entries is still quicker than calling `seq`
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set -l keys
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for kv in $fish_user_abbreviations
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# If this does not match, we have screwed up before and the error should be reported
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set keys $keys (string split " " -m 1 -- $kv)[1]
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end
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if set -l idx (contains -i -- $argv[1] $keys)
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echo $idx
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return 0
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end
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return 1
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end
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