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#compdef man apropos whatis
_man() {
local dirs expl mrd awk
if [[ $service == man ]] && (( $words[(I)-l] + $words[(I)--local-file] )); then
_files || return 0
fi
if (( ! $#manpath )); then
local mp
mp=($(manpath 2>/dev/null))
[[ "$mp" == *:* ]] && mp=( ${(s.:.)mp} )
manpath=( $mp )
fi
(( $#manpath )) || manpath=( ${(s.:.)$(manpath 2>/dev/null)} ) ||
manpath=( /usr/man(-/) /(opt|usr)/(dt|share|X11R6|local)/(cat|)man(-/) )
# `sman' is the SGML manual directory for Solaris 7.
# 1M is system administrator commands on SVR4
mrd=(${^manpath/\%L/${LANG:-En_US.ASCII}}/mandb(N))
if [[ $words[2] = (<->*|1M|l|n) ]]; then
dirs=( $^manpath/(sman|man|cat)${words[2]}/ )
awk="\$2 == \"$words[2]\" {print \$1}"
else
dirs=( $^manpath/(sman|man|cat)*/ )
awk='{print $1}'
fi
_wanted manuals expl 'manual page' _man_pages
}
_man_pages() {
local matcher pages dummy
zparseopts -E M+:=matcher
if (( $#matcher )); then
matcher=( ${matcher:#-M} )
matcher="$matcher"
else
matcher=
fi
pages=( $dirs )
compfiles -p pages '' '' "$matcher" '' dummy '*'
pages=( ${^~pages}(N:t:r) )
(($#mrd)) && pages[$#pages+1]=($(awk $awk $mrd))
# Remove any compression suffix, then remove the minimum possible string
# beginning with .<->: that handles problem cases like files called
# `POSIX.1.5'.
compadd "$@" - ${pages%.(?|<->*)}
}
_man "$@"
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