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git://git.code.sf.net/p/zsh/code
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45 lines
1.6 KiB
Text
45 lines
1.6 KiB
Text
#compdef head
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local curcontext=$curcontext state state_descr line expl opts args ret=1
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typeset -A opt_args
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if _pick_variant gnu=GNU unix --version; then
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args=(
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'(-n --lines -c --bytes)'{-c+,--bytes=}'[print the first (or with -, all but the last) specified bytes]:number of bytes:->number'
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'(-n --lines -c --bytes)'{-n+,--lines=}'[print the first (or with -, all but the last) specified lines]:number of lines:->number'
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'(-q --quiet --silent -v --verbose)'{-q,--quiet,--silent}'[never print headers giving file names]'
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'(-q --quiet --silent -v --verbose)'{-v,--verbose}'[always print headers giving file names]'
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'(- *)--help[display help and exit]'
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'(- *)--version[output version information and exit]'
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)
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else
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opts=(-A '-*')
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args=( '(-c)-n+[display the first specified lines]:number of lines' )
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case $OSTYPE in
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(freebsd*|darwin*|dragonfly*|netbsd*)
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args+=( '(-n)-c+[display the first specified bytes]:number of bytes' )
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;;
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esac
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fi
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_arguments -C -s -S $opts : $args '*:file:_files' && return 0
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case $state in
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(number)
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local mlt sign digit
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mlt='multiplier:multiplier:((b\:512 K\:1024 KB\:1000 M\:1024\^2'
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mlt+=' MB\:1000\^2 G\:1024\^3 GB\:1000\^3 T\:1024\^4 TB\:1000\^4))'
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sign='sign:sign:((-\:"print all but the last specified bytes/lines"'
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sign+=' +\:"print the first specified bytes/lines (default)"))'
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digit='digits:digit:(0 1 2 3 4 5 6 7 8 9)'
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if compset -P '(-|+|)[0-9]##'; then
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_alternative $mlt $digit && ret=0
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elif [[ -z $PREFIX ]]; then
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_alternative $sign $digit && ret=0
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elif compset -P '(+|-)'; then
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_alternative $digit && ret=0
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fi
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;;
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esac
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return ret
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