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			371 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Awk
		
	
	
	
	
	
			
		
		
	
	
			371 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			Awk
		
	
	
	
	
	
| #!/usr/bin/awk
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| #
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| # Version history:
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| #  v4+ Adapted for OpenSSH Portable (see cvs Id and 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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| 
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| 
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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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|   breakw=0
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|   line=""
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| }
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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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| 
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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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| ! /^\./ {
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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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| 
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| /^\.\\"/ { next }
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| 
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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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|       if(match(words[w+1],"^\\$Mdocdate:")) {
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|         w++;
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|         if(match(words[w+4],"^\\$$")) {
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|           words[w+4] = ""
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|         }
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|       }
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|       date=wtail()
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|       next
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|     } else if(match(words[w],"^Dt$")) {
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|       id=wtail()
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|       next
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|     } else if(match(words[w],"^Ux$")) {
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|       add("UNIX")
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|       skip=1
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|     } else if(match(words[w],"^Ox$")) {
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|       add("OpenBSD")
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|       skip=1
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|     } else if(match(words[w],"^Os$")) {
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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$")) {
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|       split("",refauthors)
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|       nrefauthors=0
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|       reftitle=""
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|       refissue=""
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|       refdate=""
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|       refopt=""
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|       refreport=""
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|       reference=1
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|       next
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|     } else if(match(words[w],"^Re$")) {
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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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|       if(nrefauthors>0)
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|         add(refauthors[0] ", ")
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|       add("\\fI" reftitle "\\fP")
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|       if(length(refissue))
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| 	add(", " refissue)
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|       if(length(refreport)) {
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| 	add(", " refreport)
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|       }
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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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|       if(match(words[w],"^%R$")) { refreport=wtail() }
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|     } else if(match(words[w],"^Nm$")) {
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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$")) {
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|       optlist=oldoptlist
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|       if(!optlist)
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|         add(".PP")
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|     } else if(match(words[w],"^Bk$")) {
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|       if(match(words[w+1],"-words")) {
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| 	w++
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| 	breakw=1
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|       }
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|     } else if(match(words[w],"^Ek$")) {
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|       breakw=0
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|     } else if(match(words[w],"^It$")&&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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