diff options
Diffstat (limited to 'toc/toc')
| -rwxr-xr-x | toc/toc | 46 |
1 files changed, 32 insertions, 14 deletions
@@ -2,12 +2,17 @@ # toc -- run troff in three passes -: ${TROFF:=troff} -SED='sed -n /^(toc)/{s///;p}' RM=rm - -trap '$RM; RM=; exit 130' INT -trap '$RM' EXIT +AWK=' + /^\(toc\)/ { print substr($0, 6); next } + { print > "/dev/stderr" } +' + +usage() { +1>&2 echo "usage: $0 [cmd ... \|] <troff> [arg ...]" +1>&2 echo "(input should be given on stdin)" + exit 1 +} tmp() { x=`mktemp` || exit $? @@ -15,19 +20,32 @@ tmp() { eval $1=\$x } -if [ ! -t 0 ]; then - tmp f - cat > $f - set -- "$@" $f -fi +end() { + cat $1 + exit $s +} + +[ $# -eq 0 ] && usage +trap '$RM; RM=; exit 130' INT +trap '$RM' EXIT + +tmp f +>$f cat tmp g tmp h +tmp i +tmp j + +echo $0: first pass 1>&2 +{ eval "$@" -rte=1 -dtf=; s=$?; } <$f 2>&1 1>$i | awk "$AWK" >$g +[ -s $g ] || end $i -$TROFF -rte=1 -dtf= "$@" 2>&1 1>/dev/null | $SED >$g -$TROFF -rte=1 -dtf=$g "$@" 2>&1 1>/dev/null | $SED >$h -$TROFF -rte=0 -dtf=$h "$@" +echo $0: second pass 1>&2 +{ eval "$@" -rte=1 -dtf=$g; s=$?; } <$f 2>&1 1>$j | awk "$AWK" >$h +diff -q $g $h >/dev/null && end $j -s=$? +echo $0: third pass 1>&2 +{ eval "$@" -rte=0 -dtf=$h; s=$?; } <$f | grep -v '^(toc)' exit $s |