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function __fish_urlencode --description "URL-encode stdin"
set -l join ''
set -l chars
# Set locale to C and IFS to "" in order to split a line into bytes.
while begin; set -lx LC_ALL C; set -lx IFS ''; read -az chars; end
printf '%s' $join
# chomp off a trailing newline
if test "$chars[-1]" = \n
set -e chars[-1]
set join '%0A%00'
else
set join '%00'
end
for c in $chars
if string match -q -r '[/._~A-Za-z0-9-]' $c
printf '%s' $c
else
printf '%%%02X' "'$c"
end
end
end
end
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