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function abbr --description "Manage abbreviations"
if not set -q argv[1]
__fish_print_help abbr
return 1
end
# parse arguments
set -l mode
set -l mode_flag # the flag that was specified, for better errors
set -l mode_arg
set -l needs_arg no
while set -q argv[1]
if test $needs_arg = yes
set mode_arg $argv[1]
set needs_arg no
else
set -l new_mode
switch $argv[1]
case '-h' '--help'
__fish_print_help abbr
return 0
case '-a' '--add'
set new_mode add
set needs_arg yes
case '-r' '--remove'
set new_mode remove
set needs_arg yes
case '-l' '--list'
set new_mode list
case '-s' '--show'
set new_mode show
case '--'
set -e argv[1]
break
case '-*'
printf ( _ "%s: invalid option -- %s\n" ) abbr $argv[1] >&2
return 1
case '*'
break
end
if test -n "$mode" -a -n "$new_mode"
# we're trying to set two different modes
printf ( _ "%s: %s cannot be specified along with %s\n" ) abbr $argv[1] $mode_flag >&2
return 1
end
set mode $new_mode
set mode_flag $argv[1]
end
set -e argv[1]
end
if test $needs_arg = yes
printf ( _ "%s: option requires an argument -- %s\n" ) abbr $mode_flag >&2
return 1
end
# none of our modes want any excess arguments
if set -q argv[1]
printf ( _ "%s: Unexpected argument -- %s\n" ) abbr $argv[1] >&2
return 1
end
switch $mode
case 'add'
set -l key
set -l value
__fish_abbr_parse_entry $mode_arg key value
# ensure the key contains at least one non-space character
set -l IFS \n\ \t
printf '%s' $key | read -lz key_ __
if test -z "$key_"
printf ( _ "%s: abbreviation must have a non-empty key\n" ) abbr >&2
return 1
end
if test -z "$value"
printf ( _ "%s: abbreviation must have a value\n" ) abbr >&2
return 1
end
if set -l idx (__fish_abbr_get_by_key $key)
# erase the existing abbreviation
set -e fish_user_abbreviations[$idx]
end
if not set -q fish_user_abbreviations
# initialize as a universal variable, so we can skip the -U later
# and therefore work properly if someone sets this as a global variable
set -U fish_user_abbreviations
end
set fish_user_abbreviations $fish_user_abbreviations $mode_arg
return 0
case 'remove'
set -l key
__fish_abbr_parse_entry $mode_arg key
if set -l idx (__fish_abbr_get_by_key $key)
set -e fish_user_abbreviations[$idx]
return 0
else
printf ( _ "%s: no such abbreviation '%s'\n" ) abbr $key >&2
return 2
end
case 'show'
for i in $fish_user_abbreviations
# Disable newline splitting
set -lx IFS ''
echo abbr -a \'(__fish_abbr_escape $i)\'
end
return 0
case 'list'
for i in $fish_user_abbreviations
set -l key
__fish_abbr_parse_entry $i key
printf "%s\n" $key
end
return 0
end
end
function __fish_abbr_escape
echo $argv | sed -e s,\\\\,\\\\\\\\,g -e s,\',\\\\\',g
end
function __fish_abbr_get_by_key
if not set -q argv[1]
echo "__fish_abbr_get_by_key: expected one argument, got none" >&2
return 2
end
set -l count (count $fish_user_abbreviations)
if test $count -gt 0
set -l key
__fish_abbr_parse_entry $argv[1] key
set -l IFS \n # ensure newline splitting is enabled
for i in (seq $count)
set -l key_i
__fish_abbr_parse_entry $fish_user_abbreviations[$i] key_i
if test "$key" = "$key_i"
echo $i
return 0
end
end
end
return 1
end
function __fish_abbr_parse_entry -S -a __input __key __value
if test -z "$__key"
set __key __
end
if test -z "$__value"
set __value __
end
set -l IFS '= '
switch $__input
case '=*'
# read will skip any leading ='s, but we don't want that
set __input " $__input"
set __key _
set IFS '='
case ' =*'
set __key _
set IFS '='
end
# use read -z to avoid splitting on newlines
# I think we can safely assume there will be no NULs in the input
printf "%s" $__input | read -z $__key $__value
return 0
end
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