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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=( ${(s.:.)$(manpath 2>/dev/null)} )
[[ "$mp" == *:* ]] && mp=( ${(s.:.)mp} )
if (( $#mp )); then
_manpath=( $mp )
elif (( $#manpath )); then
_manpath=( $manpath )
fi
fi
(( $#_manpath )) ||
_manpath=( /usr/man(-/) /(opt|usr)/(pkg|dt|share|X11R6|local)/(cat|)man(-/) )
# `sman' is the SGML manual directory for Solaris 7.
# 1M is system administrator commands on SVR4
mrd=(${^_manpath/\%L/${LANG:-En_US.ASCII}}/mandb(N))
local sect
if [[ $OSTYPE = solaris* ]]; then
sect=$words[$words[(i)-s]+1]
elif [[ -n ${sect:=$words[$words[(i)-S]+1]} || -n ${sect:=$MANSECT} ]]; then
if [[ $sect != ${sect::="${sect//:/|}"} ]]; then
sect="($sect)"
fi
elif (( CURRENT > 2 )); then
sect=$words[2]
fi
if [[ $sect = (<->*|1M|l|n) || $sect = \(*\|*\) ]]; then
dirs=( $^_manpath/(sman|man|cat)${~sect}/ )
awk="\$2 == \"$sect\" {print \$1}"
else
dirs=( $^_manpath/(sman|man|cat)*/ )
awk='{print $1}'
fi
if zstyle -t ":completion:${curcontext}:manuals" separate-sections; then
typeset -U sects
local ret=1
sects=( ${(o)${dirs##*(man|cat)}%/} )
(( $#sects )) || return 1
_tags manuals.${^sects}
while _tags; do
for sect in $sects; do
_requested manuals.$sect expl "manual page, section $sect" _man_pages &&
ret=0
done
(( ret )) || return 0
done
return 1
else
sect=
_wanted manuals expl 'manual page' _man_pages
fi
}
_man_pages() {
local matcher pages dummy
zparseopts -E M+:=matcher
if (( $#matcher )); then
matcher=( ${matcher:#-M} )
matcher="$matcher"
else
matcher=
fi
pages=( ${(M)dirs:#*$sect/} )
compfiles -p pages '' '' "$matcher" '' dummy '*'
pages=( ${^~pages}(N:t) )
(($#mrd)) && pages[$#pages+1]=($(awk $awk $mrd))
# Remove any compression suffix, then remove the minimum possible string
# beginning with .<->: that handles problem cases like files called
# `POSIX.1.5'.
compadd "$@" - ${pages%.(?|<->*(|.gz|.bz2|.Z))}
}
_man "$@"
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