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freebsd-dev/crypto/openssh/mdoc2man.awk
Dag-Erling Smørgrav ce3adf4362 Pull in all the OpenSSH bits that we'd previously left out because we 
didn't use them.  This will make future merges from the vendor tree much
easier.

Approved by:	re (gjb)
2013-09-21 22:24:10 +00:00

371 lines
8.4 KiB
Awk
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#!/usr/bin/awk
#
# $Id: mdoc2man.awk,v 1.9 2009/10/24 00:52:42 dtucker Exp $
#
# Version history:
# v4+ Adapted for OpenSSH Portable (see cvs Id and history)
# v3, I put the program under a proper license
# Dan Nelson <dnelson@allantgroup.com> added .An, .Aq and fixed a typo
# v2, fixed to work on GNU awk --posix and MacOS X
# v1, first attempt, didn't work on MacOS X
#
# Copyright (c) 2003 Peter Stuge <stuge-mdoc2man@cdy.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
BEGIN {
optlist=0
oldoptlist=0
nospace=0
synopsis=0
reference=0
block=0
ext=0
extopt=0
literal=0
prenl=0
breakw=0
line=""
}
function wtail() {
retval=""
while(w<nwords) {
if(length(retval))
retval=retval OFS
retval=retval words[++w]
}
return retval
}
function add(str) {
for(;prenl;prenl--)
line=line "\n"
line=line str
}
! /^\./ {
for(;prenl;prenl--)
print ""
print
if(literal)
print ".br"
next
}
/^\.\\"/ { next }
{
option=0
parens=0
angles=0
sub("^\\.","")
nwords=split($0,words)
for(w=1;w<=nwords;w++) {
skip=0
if(match(words[w],"^Li|Pf$")) {
skip=1
} else if(match(words[w],"^Xo$")) {
skip=1
ext=1
if(length(line)&&!(match(line," $")||prenl))
add(OFS)
} else if(match(words[w],"^Xc$")) {
skip=1
ext=0
if(!extopt)
prenl++
w=nwords
} else if(match(words[w],"^Bd$")) {
skip=1
if(match(words[w+1],"-literal")) {
literal=1
prenl++
w=nwords
}
} else if(match(words[w],"^Ed$")) {
skip=1
literal=0
} else if(match(words[w],"^Ns$")) {
skip=1
if(!nospace)
nospace=1
sub(" $","",line)
} else if(match(words[w],"^No$")) {
skip=1
sub(" $","",line)
add(words[++w])
} else if(match(words[w],"^Dq$")) {
skip=1
add("``")
add(words[++w])
while(w<nwords&&!match(words[w+1],"^[\\.,]"))
add(OFS words[++w])
add("''")
if(!nospace&&match(words[w+1],"^[\\.,]"))
nospace=1
} else if(match(words[w],"^Sq|Ql$")) {
skip=1
add("`" words[++w] "'")
if(!nospace&&match(words[w+1],"^[\\.,]"))
nospace=1
} else if(match(words[w],"^Oo$")) {
skip=1
extopt=1
if(!nospace)
nospace=1
add("[")
} else if(match(words[w],"^Oc$")) {
skip=1
extopt=0
add("]")
}
if(!skip) {
if(!nospace&&length(line)&&!(match(line," $")||prenl))
add(OFS)
if(nospace==1)
nospace=0
}
if(match(words[w],"^Dd$")) {
if(match(words[w+1],"^\\$Mdocdate:")) {
w++;
if(match(words[w+4],"^\\$$")) {
words[w+4] = ""
}
}
date=wtail()
next
} else if(match(words[w],"^Dt$")) {
id=wtail()
next
} else if(match(words[w],"^Ux$")) {
add("UNIX")
skip=1
} else if(match(words[w],"^Ox$")) {
add("OpenBSD")
skip=1
} else if(match(words[w],"^Os$")) {
add(".TH " id " \"" date "\" \"" wtail() "\"")
} else if(match(words[w],"^Sh$")) {
add(".SH")
synopsis=match(words[w+1],"SYNOPSIS")
} else if(match(words[w],"^Xr$")) {
add("\\fB" words[++w] "\\fP(" words[++w] ")" words[++w])
} else if(match(words[w],"^Rs$")) {
split("",refauthors)
nrefauthors=0
reftitle=""
refissue=""
refdate=""
refopt=""
refreport=""
reference=1
next
} else if(match(words[w],"^Re$")) {
prenl++
for(i=nrefauthors-1;i>0;i--) {
add(refauthors[i])
if(i>1)
add(", ")
}
if(nrefauthors>1)
add(" and ")
if(nrefauthors>0)
add(refauthors[0] ", ")
add("\\fI" reftitle "\\fP")
if(length(refissue))
add(", " refissue)
if(length(refreport)) {
add(", " refreport)
}
if(length(refdate))
add(", " refdate)
if(length(refopt))
add(", " refopt)
add(".")
reference=0
} else if(reference) {
if(match(words[w],"^%A$")) { refauthors[nrefauthors++]=wtail() }
if(match(words[w],"^%T$")) {
reftitle=wtail()
sub("^\"","",reftitle)
sub("\"$","",reftitle)
}
if(match(words[w],"^%N$")) { refissue=wtail() }
if(match(words[w],"^%D$")) { refdate=wtail() }
if(match(words[w],"^%O$")) { refopt=wtail() }
if(match(words[w],"^%R$")) { refreport=wtail() }
} else if(match(words[w],"^Nm$")) {
if(synopsis) {
add(".br")
prenl++
}
n=words[++w]
if(!length(name))
name=n
if(!length(n))
n=name
add("\\fB" n "\\fP")
if(!nospace&&match(words[w+1],"^[\\.,]"))
nospace=1
} else if(match(words[w],"^Nd$")) {
add("\\- " wtail())
} else if(match(words[w],"^Fl$")) {
add("\\fB\\-" words[++w] "\\fP")
if(!nospace&&match(words[w+1],"^[\\.,]"))
nospace=1
} else if(match(words[w],"^Ar$")) {
add("\\fI")
if(w==nwords)
add("file ...\\fP")
else {
add(words[++w] "\\fP")
while(match(words[w+1],"^\\|$"))
add(OFS words[++w] " \\fI" words[++w] "\\fP")
}
if(!nospace&&match(words[w+1],"^[\\.,]"))
nospace=1
} else if(match(words[w],"^Cm$")) {
add("\\fB" words[++w] "\\fP")
while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
add(words[++w])
} else if(match(words[w],"^Op$")) {
option=1
if(!nospace)
nospace=1
add("[")
} else if(match(words[w],"^Pp$")) {
prenl++
} else if(match(words[w],"^An$")) {
prenl++
} else if(match(words[w],"^Ss$")) {
add(".SS")
} else if(match(words[w],"^Pa$")&&!option) {
add("\\fI")
w++
if(match(words[w],"^\\."))
add("\\&")
add(words[w] "\\fP")
while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
add(words[++w])
} else if(match(words[w],"^Dv$")) {
add(".BR")
} else if(match(words[w],"^Em|Ev$")) {
add(".IR")
} else if(match(words[w],"^Pq$")) {
add("(")
nospace=1
parens=1
} else if(match(words[w],"^Aq$")) {
add("<")
nospace=1
angles=1
} else if(match(words[w],"^S[xy]$")) {
add(".B " wtail())
} else if(match(words[w],"^Ic$")) {
plain=1
add("\\fB")
while(w<nwords) {
w++
if(match(words[w],"^Op$")) {
w++
add("[")
words[nwords]=words[nwords] "]"
}
if(match(words[w],"^Ar$")) {
add("\\fI" words[++w] "\\fP")
} else if(match(words[w],"^[\\.,]")) {
sub(" $","",line)
if(plain) {
add("\\fP")
plain=0
}
add(words[w])
} else {
if(!plain) {
add("\\fB")
plain=1
}
add(words[w])
}
if(!nospace)
add(OFS)
}
sub(" $","",line)
if(plain)
add("\\fP")
} else if(match(words[w],"^Bl$")) {
oldoptlist=optlist
if(match(words[w+1],"-bullet"))
optlist=1
else if(match(words[w+1],"-enum")) {
optlist=2
enum=0
} else if(match(words[w+1],"-tag"))
optlist=3
else if(match(words[w+1],"-item"))
optlist=4
else if(match(words[w+1],"-bullet"))
optlist=1
w=nwords
} else if(match(words[w],"^El$")) {
optlist=oldoptlist
} else if(match(words[w],"^Bk$")) {
if(match(words[w+1],"-words")) {
w++
breakw=1
}
} else if(match(words[w],"^Ek$")) {
breakw=0
} else if(match(words[w],"^It$")&&optlist) {
if(optlist==1)
add(".IP \\(bu")
else if(optlist==2)
add(".IP " ++enum ".")
else if(optlist==3) {
add(".TP")
prenl++
if(match(words[w+1],"^Pa$|^Ev$")) {
add(".B")
w++
}
} else if(optlist==4)
add(".IP")
} else if(match(words[w],"^Sm$")) {
if(match(words[w+1],"off"))
nospace=2
else if(match(words[w+1],"on"))
nospace=0
w++
} else if(!skip) {
add(words[w])
}
}
if(match(line,"^\\.[^a-zA-Z]"))
sub("^\\.","",line)
if(parens)
add(")")
if(angles)
add(">")
if(option)
add("]")
if(ext&&!extopt&&!match(line," $"))
add(OFS)
if(!ext&&!extopt&&length(line)) {
print line
prenl=0
line=""
}
}
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