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#compdef diff3
local -a args ed
local ign
if _pick_variant gnu=GNU unix; then
ed=(
'(-m --merge -A --show-all)'{-e,--ed}'[output ed script for incorporating changes]'
'(-m --merge -A --show-all)'{-E,--show-overlap}'[like -e, but bracket conflicts]'
'(-m --merge -A --show-all)'{-3,--easy-only}'[like -e, but incorporate only nonoverlapping changes]'
'(-m --merge -A --show-all)'{-x,--overlap-only}'[like -e, but incorporate only overlapping changes]'
'(-m --merge -A --show-all)-X[like -x, but bracket conflicts]'
)
(( $#words > 2 )) && ign='!'
args=(
'(-A --show-all ed)'{-A,--show-all}'[output all changes, bracketing conflicts]'
"(-m --merge)-i[append 'w' and 'q' commands to ed scripts]"
'(-m --merge -i ed)'{-m,--merge}'[output merged file instead of ed script]'
'(-a --text)'{-a,--text}'[treat all files as text]'
'--strip-trailing-cr[strip trailing carriage return on input]'
'(-T --initial-tab)'{-T,--initial-tab}'[make tabs line up by prepending a tab]'
'--diff-program=[specify program to compare files]: : _command_names -e'
\*{-L+,--label=}'[use specified label instead of file name]:label'
"$ign(-)--help[display usage information]"
"$ign(-)"{-v,--version}'[display version information]'
)
else
args=( -A "-*" )
ed=(
'-e[output ed script for incorporating changes]'
'-E[like -e, but bracket conflicts]'
'-x[like -e, but incorporate only overlapping changes]'
'-X[like -x, but bracket conflicts]'
'-3[like -e, but incorporate only nonoverlapping changes]'
)
if [[ $OSTYPE != solaris* ]]; then # likely the openbsd diff3 implementation
args+=( '-a[treat all files as text]' )
fi
fi
_arguments -s -S $args \
'1:updated file:_files' \
'2:original file:_files' \
'3:updated file:_files' \
+ '(ed)' $ed
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