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#! /bin/sh
# grog -- guess options for groff command
# Like doctype in Kernighan & Pike, Unix Programming Environment, pp 306-8.
# Source file position: <groff-source>/src/roff/grog/grog.sh
# Installed position: <prefix>/bin/grog
# Copyright (C) 1993, 2006 Free Software Foundation, Inc.
# Written by James Clark, maintained by Werner Lemberg.
# Rewritten by and put under GPL Bernd Warken.
# This file is part of `grog', which is part of `groff'.
# `groff' is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License (GPL) as published
# by the Free Software Foundation; either version 2, or (at your
# option) any later version.
# `groff' is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with `groff'; see the files COPYING and LICENSE in the top
# directory of the `groff' source. If not, write to the Free Software
# Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301,
# USA.
########################################################################
Last_Update='6 Nov 2006'
########################################################################
soelim=@g@soelim
opts=
mopt=
nr=0
sp="([ ]|$)"
double_minus=0
was_minus=0
filespec=
had_filespec=0
for arg
do
if test _"${double_minus}"_ = _1_
then
had_filespec=1
if test -f "${arg}" && test -r "${arg}"
then
case "$arg" in
*" "*)
eval filespec="'${filespec} '"'\"'"'${arg}'"'\"'
;;
*)
eval filespec="'${filespec} ${arg}'"
;;
esac
else
echo "grog: ${arg} is not a readable file.">&2
fi
continue
fi
case "$arg" in
--)
double_minus=1
;;
-)
# omit several -
if test _"${was_minus}"_ = _0_
then
was_minus=1
filespec="${filespec} -"
fi
;;
-C)
sp=; opts="$opts -C";
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo \
"Shell version of GNU grog of $Last_Update in groff version @VERSION@";
exit 0
;;
-h|--h|--he|--hel|--help)
cat <<EOF
usage: grog [option]... [--] [filespec]...
"filespec" is either the name of an existing, readable file or "-" for
standard input. If no "filespec" is specified, standard input is
assumed automatically.
"option" is either a "groff" option or one of these:
-C compatibility mode
-h --help print this uasge message and exit
-v --version print version information and exit
"groff" options are appended to the output, "-m" options are checked.
EOF
exit 0
;;
-m*)
if test _"$nr"_ = _0_
then
nr=1
mopt="$arg"
else
echo "grog: several -m* options are not allowed." >&2
mopt=
fi
;;
-*)
opts="$opts $arg"
;;
*)
had_filespec=1
if test -f "${arg}" && test -r "${arg}"
then
case "$arg" in
*" "*)
eval filespec="'${filespec} '"'\"'"'${arg}'"'\"'
;;
*)
eval filespec="'${filespec} ${arg}'"
;;
esac
else
echo "grog: ${arg} is not a readable file.">&2
fi
;;
esac
done
if test _"${filespec}"_ = __ && test _"${had_filespec}"_ = _0_
then
filespec='-'
fi
if test _"${filespec}"_ = __
then
exit 1
fi
if test "${double_minus}" = 1
then
eval files="'-- ${filespec}'"
else
eval files="'${filespec}'"
fi
files=`echo $files|sed s/\"/\'/g`
eval sed "'s/[ ]*$//'" '--' "${filespec}" \
| sed 's/^[ ]*begin[ ][ ]*chem$/.cstart/' \
| sed 's/^[.'"'"'][ ]*/./' \
| @EGREP@ -h \
"^\.(\[|\])|cstart|((P|PS|[PLI]P|[pnil]p|sh|Dd|Tp|Dp|De|Cx|Cl|Oo|.* Oo|Oc|.* Oc|NH|TL|TS|TE|EQ|TH|SH|so|\[|R1|GS|G1|PH|SA)$sp)" \
| sed '/^\.so/s/^.*$/.SO_START\
&\
.SO_END/' \
| $soelim \
| @EGREP@ \
'^\.(cstart|P|PS|[PLI]P|[pnil]p|sh|Dd|Tp|Dp|De|Cx|Cl|Oo|.* Oo|Oc|.* Oc|NH|TL|TS|TE|EQ|TH|TL|NH|SH|\[|\]|R1|GS|G1|PH|SA|SO_START|SO_END)' \
| awk '
/^\.SO_START$/ { so = 1 }
/^\.SO_END$/ { so = 0 }
/^\.cstart$/ { chem++ }
/^\.TS/ { tbl++; in_tbl = 1; if (so > 0) soelim++; }
/^\.TE/ { in_tbl = 0 }
/^\.PS([ 0-9.<].*)?$/ { pic++; if (so > 0) soelim++ }
/^\.EQ/ { eqn++; if (so > 0) soelim++ }
/^\.R1/ { refer++; if (so > 0) soelim++ }
/^\.\[/ {refer_start++; if (so > 0) soelim++ }
/^\.\]/ {refer_end++; if (so > 0) soelim++ }
/^\.GS/ { grn++; if (so > 0) soelim++ }
/^\.G1/ { grap++; pic++; if (so > 0) soelim++ }
/^\.TH/ { if (in_tbl != 1) TH++ }
/^\.PP/ { PP++ }
/^\.TL/ { TL++ }
/^\.NH/ { NH++ }
/^\.[IL]P/ { ILP++ }
/^\.P$/ { P++ }
/^\.SH/ { SH++ }
/^\.(PH|SA)/ { mm++ }
/^\.([pnil]p|sh)/ { me++ }
/^\.Dd/ { mdoc++ }
/^\.(Tp|Dp|De|Cx|Cl)/ { mdoc_old++ }
/^\.(O[oc]|.* O[oc]( |$))/ {
sub(/\\\".*/, "")
gsub(/\"[^\"]*\"/, "")
sub(/\".*/, "")
sub(/^\.Oo/, " Oo ")
sub(/^\.Oc/, " Oc ")
sub(/ Oo$/, " Oo ")
sub(/ Oc$/, " Oc ")
while (/ Oo /) {
sub(/ Oo /, " ")
Oo++
}
while (/ Oc /) {
sub(/ Oc /, " ")
Oo--
}
}
/^\.(PRINTSTYLE|START)/ { mom++ }
END {
if (chem > 0) {
printf "chem %s | ", files
pic++
files = ""
}
printf "groff"
refer = refer || (refer_start && refer_end)
if (pic > 0 || tbl > 0 || grn > 0 || grap > 0 || eqn > 0 || refer > 0) {
printf " -"
if (soelim > 0) printf "s"
if (refer > 0) printf "R"
if (grn > 0) printf "g"
if (grap > 0) printf "G"
if (pic > 0) printf "p"
if (tbl > 0) printf "t"
if (eqn > 0) printf "e"
}
mnr = 0
m = ""
is_man = 0
is_mm = 0
is_mom = 0
# me
if (me > 0) {
mnr++; m = "-me"; printf " -me"
}
# man
if (SH > 0 && TH > 0) {
mnr++; m = "-man"; printf " -man"; is_man = 1
}
# mom
if (mom > 0) {
mnr++; m = "-mom"; printf " -mom"; is_mom = 1
}
# mm
if ( mm > 0 || (P > 0 && is_man == 0) ) {
mnr++; m = "-mm"; printf " -mm"; is_mm = 1
}
# ms
if ( NH > 0 || (TL > 0 && is_mm == 0) || (ILP > 0 && is_man == 0) ||
(PP > 0 && is_mom == 0 && is_man == 0) ) {
# .TL also occurs in -mm, .IP and .LP also occur in -man
# .PP also occurs in -mom and -man
mnr++; m = "-ms"; printf " -ms"
}
# mdoc
if (mdoc > 0) {
mnr++
if (mdoc_old > 0 || Oo > 0) {
m = "-mdoc-old"; printf " -mdoc-old"
}
else {
m = "-mdoc"; printf " -mdoc"
}
}
if (mnr == 0) {
if (mopt != "")
printf "%s", mopt
}
if (opts != "")
printf "%s", opts
if (files != "")
printf " %s", files
print ""
if (mnr == 1) {
if (mopt != "" && m != mopt)
printf "grog: wrong option %s\n", mopt | "cat 1>&2"
}
if (mnr >= 2) {
err = "grog: error: there are several -m* arguments"
printf "%s\n", err | "cat 1>&2"
exit mnr
}
}' "opts=$opts" "mopt=$mopt" "files=$files" -
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