mirror of git://anongit.mindrot.org/openssh.git
341 lines
7.7 KiB
Awk
341 lines
7.7 KiB
Awk
#!/usr/bin/awk
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#
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# Version history:
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# v3, I put the program under a proper license
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# Dan Nelson <dnelson@allantgroup.com> added .An, .Aq and fixed a typo
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# v2, fixed to work on GNU awk --posix and MacOS X
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# v1, first attempt, didn't work on MacOS X
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#
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# Copyright (c) 2003 Peter Stuge <stuge-mdoc2man@cdy.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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BEGIN {
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optlist=0
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oldoptlist=0
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nospace=0
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synopsis=0
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reference=0
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block=0
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ext=0
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extopt=0
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literal=0
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prenl=0
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line=""
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}
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function wtail() {
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retval=""
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while(w<nwords) {
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if(length(retval))
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retval=retval OFS
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retval=retval words[++w]
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}
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return retval
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}
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function add(str) {
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for(;prenl;prenl--)
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line=line "\n"
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line=line str
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}
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! /^\./ {
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for(;prenl;prenl--)
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print ""
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print
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if(literal)
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print ".br"
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next
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}
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/^\.\\"/ { next }
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{
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option=0
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parens=0
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angles=0
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sub("^\\.","")
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nwords=split($0,words)
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for(w=1;w<=nwords;w++) {
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skip=0
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if(match(words[w],"^Li|Pf$")) {
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skip=1
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} else if(match(words[w],"^Xo$")) {
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skip=1
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ext=1
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if(length(line)&&!(match(line," $")||prenl))
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add(OFS)
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} else if(match(words[w],"^Xc$")) {
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skip=1
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ext=0
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if(!extopt)
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prenl++
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w=nwords
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} else if(match(words[w],"^Bd$")) {
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skip=1
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if(match(words[w+1],"-literal")) {
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literal=1
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prenl++
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w=nwords
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}
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} else if(match(words[w],"^Ed$")) {
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skip=1
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literal=0
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} else if(match(words[w],"^Ns$")) {
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skip=1
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if(!nospace)
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nospace=1
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sub(" $","",line)
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} else if(match(words[w],"^No$")) {
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skip=1
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sub(" $","",line)
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add(words[++w])
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} else if(match(words[w],"^Dq$")) {
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skip=1
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add("``")
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add(words[++w])
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while(w<nwords&&!match(words[w+1],"^[\\.,]"))
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add(OFS words[++w])
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add("''")
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if(!nospace&&match(words[w+1],"^[\\.,]"))
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nospace=1
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} else if(match(words[w],"^Sq|Ql$")) {
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skip=1
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add("`" words[++w] "'")
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if(!nospace&&match(words[w+1],"^[\\.,]"))
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nospace=1
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} else if(match(words[w],"^Oo$")) {
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skip=1
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extopt=1
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if(!nospace)
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nospace=1
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add("[")
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} else if(match(words[w],"^Oc$")) {
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skip=1
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extopt=0
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add("]")
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}
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if(!skip) {
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if(!nospace&&length(line)&&!(match(line," $")||prenl))
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add(OFS)
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if(nospace==1)
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nospace=0
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}
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if(match(words[w],"^Dd$")) {
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date=wtail()
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next
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} else if(match(words[w],"^Dt$")) {
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id=wtail()
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next
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} else if(match(words[w],"^Os$")) {
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add(".TH " id " \"" date "\" \"" wtail() "\"")
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} else if(match(words[w],"^Sh$")) {
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add(".SH")
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synopsis=match(words[w+1],"SYNOPSIS")
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} else if(match(words[w],"^Xr$")) {
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add("\\fB" words[++w] "\\fP(" words[++w] ")" words[++w])
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} else if(match(words[w],"^Rs$")) {
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split("",refauthors)
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nrefauthors=0
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reftitle=""
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refissue=""
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refdate=""
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refopt=""
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reference=1
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next
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} else if(match(words[w],"^Re$")) {
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prenl++
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for(i=nrefauthors-1;i>0;i--) {
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add(refauthors[i])
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if(i>1)
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add(", ")
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}
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if(nrefauthors>1)
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add(" and ")
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add(refauthors[0] ", \\fI" reftitle "\\fP")
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if(length(refissue))
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add(", " refissue)
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if(length(refdate))
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add(", " refdate)
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if(length(refopt))
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add(", " refopt)
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add(".")
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reference=0
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} else if(reference) {
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if(match(words[w],"^%A$")) { refauthors[nrefauthors++]=wtail() }
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if(match(words[w],"^%T$")) {
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reftitle=wtail()
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sub("^\"","",reftitle)
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sub("\"$","",reftitle)
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}
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if(match(words[w],"^%N$")) { refissue=wtail() }
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if(match(words[w],"^%D$")) { refdate=wtail() }
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if(match(words[w],"^%O$")) { refopt=wtail() }
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} else if(match(words[w],"^Nm$")) {
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if(synopsis) {
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add(".br")
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prenl++
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}
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n=words[++w]
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if(!length(name))
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name=n
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if(!length(n))
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n=name
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add("\\fB" n "\\fP")
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if(!nospace&&match(words[w+1],"^[\\.,]"))
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nospace=1
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} else if(match(words[w],"^Nd$")) {
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add("\\- " wtail())
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} else if(match(words[w],"^Fl$")) {
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add("\\fB\\-" words[++w] "\\fP")
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if(!nospace&&match(words[w+1],"^[\\.,]"))
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nospace=1
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} else if(match(words[w],"^Ar$")) {
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add("\\fI")
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if(w==nwords)
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add("file ...\\fP")
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else {
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add(words[++w] "\\fP")
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while(match(words[w+1],"^\\|$"))
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add(OFS words[++w] " \\fI" words[++w] "\\fP")
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}
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if(!nospace&&match(words[w+1],"^[\\.,]"))
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nospace=1
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} else if(match(words[w],"^Cm$")) {
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add("\\fB" words[++w] "\\fP")
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while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
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add(words[++w])
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} else if(match(words[w],"^Op$")) {
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option=1
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if(!nospace)
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nospace=1
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add("[")
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} else if(match(words[w],"^Pp$")) {
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prenl++
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} else if(match(words[w],"^An$")) {
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prenl++
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} else if(match(words[w],"^Ss$")) {
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add(".SS")
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} else if(match(words[w],"^Pa$")&&!option) {
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add("\\fI")
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w++
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if(match(words[w],"^\\."))
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add("\\&")
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add(words[w] "\\fP")
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while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
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add(words[++w])
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} else if(match(words[w],"^Dv$")) {
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add(".BR")
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} else if(match(words[w],"^Em|Ev$")) {
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add(".IR")
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} else if(match(words[w],"^Pq$")) {
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add("(")
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nospace=1
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parens=1
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} else if(match(words[w],"^Aq$")) {
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add("<")
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nospace=1
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angles=1
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} else if(match(words[w],"^S[xy]$")) {
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add(".B " wtail())
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} else if(match(words[w],"^Ic$")) {
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plain=1
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add("\\fB")
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while(w<nwords) {
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w++
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if(match(words[w],"^Op$")) {
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w++
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add("[")
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words[nwords]=words[nwords] "]"
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}
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if(match(words[w],"^Ar$")) {
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add("\\fI" words[++w] "\\fP")
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} else if(match(words[w],"^[\\.,]")) {
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sub(" $","",line)
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if(plain) {
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add("\\fP")
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plain=0
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}
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add(words[w])
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} else {
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if(!plain) {
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add("\\fB")
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plain=1
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}
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add(words[w])
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}
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if(!nospace)
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add(OFS)
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}
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sub(" $","",line)
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if(plain)
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add("\\fP")
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} else if(match(words[w],"^Bl$")) {
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oldoptlist=optlist
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if(match(words[w+1],"-bullet"))
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optlist=1
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else if(match(words[w+1],"-enum")) {
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optlist=2
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enum=0
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} else if(match(words[w+1],"-tag"))
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optlist=3
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else if(match(words[w+1],"-item"))
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optlist=4
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else if(match(words[w+1],"-bullet"))
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optlist=1
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w=nwords
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} else if(match(words[w],"^El$")) {
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optlist=oldoptlist
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} else if(match(words[w],"^It$")&&optlist) {
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if(optlist==1)
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add(".IP \\(bu")
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else if(optlist==2)
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add(".IP " ++enum ".")
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else if(optlist==3) {
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add(".TP")
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prenl++
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if(match(words[w+1],"^Pa|Ev$")) {
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add(".B")
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w++
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}
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} else if(optlist==4)
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add(".IP")
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} else if(match(words[w],"^Sm$")) {
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if(match(words[w+1],"off"))
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nospace=2
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else if(match(words[w+1],"on"))
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nospace=0
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w++
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} else if(!skip) {
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add(words[w])
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}
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}
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if(match(line,"^\\.[^a-zA-Z]"))
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sub("^\\.","",line)
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if(parens)
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add(")")
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if(angles)
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add(">")
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if(option)
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add("]")
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if(ext&&!extopt&&!match(line," $"))
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add(OFS)
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if(!ext&&!extopt&&length(line)) {
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print line
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prenl=0
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line=""
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}
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}
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