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79 lines
1.6 KiB
Bash
79 lines
1.6 KiB
Bash
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#!/bin/sh
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# grog -- guess options for groff command
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# Like doctype in Kernighan & Pike, Unix Programming Environment, pp 306-8.
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soelim=gsoelim
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opts=
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for arg
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do
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case "$arg" in
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--)
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shift; break;;
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-)
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break;;
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-*)
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opts="$opts $arg"; shift;;
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*)
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break;;
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esac
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done
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egrep -h '^\.(P|[LI]P|[pnil]p|sh|Dd|Tp|Dp|De|Cx|Cl|Oo|Oc|TS|EQ|TH|SH|so|\[|R1|PH|SA)' $* \
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| sed -e '/^\.so/s/^.*$/.SO_START\
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&\
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.SO_END/' \
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| $soelim \
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| egrep '^\.(P|[LI]P|[pnil]p|sh|Dd|Tp|Dp|De|Cx|Cl|Oo|Oc|TS|EQ|TH|SH|\[|R1|PH|SA|SO_START|SO_END)' \
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| awk '
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/^\.SO_START$/ { so = 1 }
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/^\.SO_END$/ { so = 0 }
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/^\.TS/ { tbl++; if (so > 0) soelim++ }
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/^\.PS([ 0-9.<].*)?$/ { pic++; if (so > 0) soelim++ }
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/^\.EQ/ { eqn++; if (so > 0) soelim++ }
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/^\.(R1|\[)/ { refer++; if (so > 0) soelim++ }
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/^\.TH/ { TH++ }
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/^\.[PLI]P/ { PP++ }
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/^\.P$/ { P++ }
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/^\.SH/ { SH++ }
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/^\.(PH|SA)/ { mm++ }
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/^\.([pnil]p|sh)/ { me++ }
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/^\.Dd/ { mdoc++ }
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/^\.(Tp|Dp|De|Cx|Cl)/ { mdoc_old++ }
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/^\.Oo/ { Oo++ }
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/^\.Oc/ { Oo-- }
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END {
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if (files ~ /^-/)
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files = "-- " files
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printf "groff"
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if (pic > 0 || tbl > 0 || eqn > 0 || refer > 0) {
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printf " -"
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if (soelim > 0) printf "s"
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if (refer > 0) printf "R"
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if (pic > 0) printf "p"
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if (tbl > 0) printf "t"
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if (eqn > 0) printf "e"
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}
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if (me > 0)
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printf " -me"
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else if (SH > 0 && TH > 0)
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printf " -man"
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else if (PP > 0)
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printf " -ms"
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else if (P > 0 || mm > 0)
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printf " -mm"
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else if (mdoc > 0) {
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if (mdoc_old > 0 || Oo > 0)
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printf " -mdoc.old"
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else
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printf " -mdoc"
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}
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if (opts != "")
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printf "%s", opts
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if (files != "")
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printf " %s", files
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print
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}' "opts=$opts" "files=$*" -
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