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git://git.code.sf.net/p/zsh/code
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90 lines
2.0 KiB
Plaintext
90 lines
2.0 KiB
Plaintext
# read a man page
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setopt localoptions extendedglob
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local manual="$1" col=col terminal=man magic line
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# /usr/bin/col on SunOS 4 doesn't support -x.
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if [[ -x /usr/5bin/col ]]; then
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col=/usr/5bin/col;
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fi
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# SunOS 5 has no `man' terminal.
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if [[ -d /usr/share/lib/nterm &&
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! -e /usr/share/lib/nterm/tab.$terminal ]]; then
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terminal=lp;
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fi
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# HP-UX has no `man' terminal.
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if [[ -d /usr/share/lib/term &&
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! -e /usr/share/lib/term/tab$terminal ]]; then
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terminal=lp;
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fi
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# IRIX has no `man' terminal.
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if [[ -d /usr/lib/nterm &&
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! -e /usr/lib/nterm/tab.$terminal ]]; then
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terminal=lp;
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fi
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# Unixware has no `man' terminal.
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if [[ -d /usr/ucblib/doctools/nterm &&
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! -e /usr/ucblib/doctools/nterm/tab.$terminal ]]; then
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terminal=lp;
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fi
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# Solaris has SGML manuals.
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if [[ -f /usr/lib/sgml/sgml2roff ]] &&
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[[ "$(read -er < $manual)" = "<!DOCTYPE"* ]]; then
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/usr/lib/sgml/sgml2roff $manual | {
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read -r line
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if [[ $line = ".so "* ]]; then
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# There is no cascading .so directive.
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# On Solaris 7, at least.
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/usr/lib/sgml/sgml2roff ${line#.so }
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else
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print -lr - "$line"
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cat
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fi
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}
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else
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read -u0 -k 2 magic < $manual
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case $magic in
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$'\037\235') zcat $manual;;
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$'\037\213') gzip -dc $manual;;
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*) cat $manual;;
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esac
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fi | (
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# cd is required to work soelim called by nroff.
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case $manual in
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*/man/man*/*) cd ${manual:h:h};;
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*/man/sman*/*) cd ${manual:h:h};;
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esac
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read -r line
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# The first line beginning with '\" shows preprocessors.
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# Unknown preprocessors is ignored.
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if [[ $line = "'\\\" "* ]]; then
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typeset -A filter
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filter=(
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e neqn
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g grap
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p pic
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r refer
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t tbl
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v vgrind
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)
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eval ${(j:|:)${${(s::)line#\'\\\" }//(#m)?/$filter[$MATCH]}}
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elif [[ $line = "'\\\"! "* ]]; then
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typeset -A filter
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filter=(
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eqn neqn
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)
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eval ${(j:|:)${${${${(s:|:)line#\'\\\"! }# ##}% ##}//(#m)*/$filter[$MATCH]}}
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else
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print -lr - "$line"
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cat
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fi |
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nroff -T$terminal -man | $col -x
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) |
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${=MANPAGER:-${PAGER:-more}} -s
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