blob: d6eaf460154e115756cff1d685c40bfec1e7b77c [file] [log] [blame]
Darren Tucker167bd9c2003-09-07 12:34:54 +10001#!/usr/bin/awk
2#
3# Version history:
4# v3, I put the program under a proper license
5# Dan Nelson <dnelson@allantgroup.com> added .An, .Aq and fixed a typo
6# v2, fixed to work on GNU awk --posix and MacOS X
7# v1, first attempt, didn't work on MacOS X
8#
9# Copyright (c) 2003 Peter Stuge <stuge-mdoc2man@cdy.org>
10#
11# Permission to use, copy, modify, and distribute this software for any
12# purpose with or without fee is hereby granted, provided that the above
13# copyright notice and this permission notice appear in all copies.
14#
15# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22
23
24BEGIN {
25 optlist=0
26 oldoptlist=0
27 nospace=0
28 synopsis=0
29 reference=0
30 block=0
31 ext=0
32 extopt=0
33 literal=0
34 prenl=0
Darren Tuckerd062da52004-07-02 18:43:09 +100035 breakw=0
Darren Tucker167bd9c2003-09-07 12:34:54 +100036 line=""
37}
38
39function wtail() {
40 retval=""
41 while(w<nwords) {
42 if(length(retval))
43 retval=retval OFS
44 retval=retval words[++w]
45 }
46 return retval
47}
48
49function add(str) {
50 for(;prenl;prenl--)
51 line=line "\n"
52 line=line str
53}
54
55! /^\./ {
56 for(;prenl;prenl--)
57 print ""
58 print
59 if(literal)
60 print ".br"
61 next
62}
63
64/^\.\\"/ { next }
65
66{
67 option=0
68 parens=0
69 angles=0
70 sub("^\\.","")
71 nwords=split($0,words)
72 for(w=1;w<=nwords;w++) {
73 skip=0
74 if(match(words[w],"^Li|Pf$")) {
75 skip=1
76 } else if(match(words[w],"^Xo$")) {
77 skip=1
78 ext=1
79 if(length(line)&&!(match(line," $")||prenl))
Damien Millera8e06ce2003-11-21 23:48:55 +110080 add(OFS)
Darren Tucker167bd9c2003-09-07 12:34:54 +100081 } else if(match(words[w],"^Xc$")) {
82 skip=1
83 ext=0
84 if(!extopt)
Damien Millera8e06ce2003-11-21 23:48:55 +110085 prenl++
Darren Tucker167bd9c2003-09-07 12:34:54 +100086 w=nwords
87 } else if(match(words[w],"^Bd$")) {
88 skip=1
89 if(match(words[w+1],"-literal")) {
Damien Millera8e06ce2003-11-21 23:48:55 +110090 literal=1
91 prenl++
92 w=nwords
Darren Tucker167bd9c2003-09-07 12:34:54 +100093 }
94 } else if(match(words[w],"^Ed$")) {
95 skip=1
96 literal=0
97 } else if(match(words[w],"^Ns$")) {
98 skip=1
99 if(!nospace)
Damien Millera8e06ce2003-11-21 23:48:55 +1100100 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000101 sub(" $","",line)
102 } else if(match(words[w],"^No$")) {
103 skip=1
104 sub(" $","",line)
105 add(words[++w])
106 } else if(match(words[w],"^Dq$")) {
107 skip=1
108 add("``")
109 add(words[++w])
110 while(w<nwords&&!match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100111 add(OFS words[++w])
Darren Tucker167bd9c2003-09-07 12:34:54 +1000112 add("''")
113 if(!nospace&&match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100114 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000115 } else if(match(words[w],"^Sq|Ql$")) {
116 skip=1
117 add("`" words[++w] "'")
118 if(!nospace&&match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100119 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000120 } else if(match(words[w],"^Oo$")) {
121 skip=1
122 extopt=1
123 if(!nospace)
Damien Millera8e06ce2003-11-21 23:48:55 +1100124 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000125 add("[")
126 } else if(match(words[w],"^Oc$")) {
127 skip=1
128 extopt=0
129 add("]")
130 }
131 if(!skip) {
132 if(!nospace&&length(line)&&!(match(line," $")||prenl))
Damien Millera8e06ce2003-11-21 23:48:55 +1100133 add(OFS)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000134 if(nospace==1)
Damien Millera8e06ce2003-11-21 23:48:55 +1100135 nospace=0
Darren Tucker167bd9c2003-09-07 12:34:54 +1000136 }
137 if(match(words[w],"^Dd$")) {
138 date=wtail()
139 next
140 } else if(match(words[w],"^Dt$")) {
141 id=wtail()
142 next
Darren Tuckerf5615962005-05-31 16:59:16 +1000143 } else if(match(words[w],"^Ox$")) {
144 add("OpenBSD")
145 skip=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000146 } else if(match(words[w],"^Os$")) {
147 add(".TH " id " \"" date "\" \"" wtail() "\"")
148 } else if(match(words[w],"^Sh$")) {
149 add(".SH")
150 synopsis=match(words[w+1],"SYNOPSIS")
151 } else if(match(words[w],"^Xr$")) {
152 add("\\fB" words[++w] "\\fP(" words[++w] ")" words[++w])
153 } else if(match(words[w],"^Rs$")) {
154 split("",refauthors)
155 nrefauthors=0
156 reftitle=""
157 refissue=""
158 refdate=""
159 refopt=""
160 reference=1
161 next
162 } else if(match(words[w],"^Re$")) {
163 prenl++
164 for(i=nrefauthors-1;i>0;i--) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100165 add(refauthors[i])
166 if(i>1)
167 add(", ")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000168 }
169 if(nrefauthors>1)
Damien Millera8e06ce2003-11-21 23:48:55 +1100170 add(" and ")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000171 add(refauthors[0] ", \\fI" reftitle "\\fP")
172 if(length(refissue))
Damien Millera8e06ce2003-11-21 23:48:55 +1100173 add(", " refissue)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000174 if(length(refdate))
Damien Millera8e06ce2003-11-21 23:48:55 +1100175 add(", " refdate)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000176 if(length(refopt))
Damien Millera8e06ce2003-11-21 23:48:55 +1100177 add(", " refopt)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000178 add(".")
179 reference=0
180 } else if(reference) {
181 if(match(words[w],"^%A$")) { refauthors[nrefauthors++]=wtail() }
182 if(match(words[w],"^%T$")) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100183 reftitle=wtail()
184 sub("^\"","",reftitle)
185 sub("\"$","",reftitle)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000186 }
187 if(match(words[w],"^%N$")) { refissue=wtail() }
188 if(match(words[w],"^%D$")) { refdate=wtail() }
189 if(match(words[w],"^%O$")) { refopt=wtail() }
190 } else if(match(words[w],"^Nm$")) {
191 if(synopsis) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100192 add(".br")
193 prenl++
Darren Tucker167bd9c2003-09-07 12:34:54 +1000194 }
195 n=words[++w]
196 if(!length(name))
Damien Millera8e06ce2003-11-21 23:48:55 +1100197 name=n
Darren Tucker167bd9c2003-09-07 12:34:54 +1000198 if(!length(n))
Damien Millera8e06ce2003-11-21 23:48:55 +1100199 n=name
Darren Tucker167bd9c2003-09-07 12:34:54 +1000200 add("\\fB" n "\\fP")
201 if(!nospace&&match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100202 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000203 } else if(match(words[w],"^Nd$")) {
204 add("\\- " wtail())
205 } else if(match(words[w],"^Fl$")) {
206 add("\\fB\\-" words[++w] "\\fP")
207 if(!nospace&&match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100208 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000209 } else if(match(words[w],"^Ar$")) {
210 add("\\fI")
211 if(w==nwords)
Damien Millera8e06ce2003-11-21 23:48:55 +1100212 add("file ...\\fP")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000213 else {
Damien Millera8e06ce2003-11-21 23:48:55 +1100214 add(words[++w] "\\fP")
215 while(match(words[w+1],"^\\|$"))
216 add(OFS words[++w] " \\fI" words[++w] "\\fP")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000217 }
218 if(!nospace&&match(words[w+1],"^[\\.,]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100219 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000220 } else if(match(words[w],"^Cm$")) {
221 add("\\fB" words[++w] "\\fP")
222 while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100223 add(words[++w])
Darren Tucker167bd9c2003-09-07 12:34:54 +1000224 } else if(match(words[w],"^Op$")) {
225 option=1
226 if(!nospace)
Damien Millera8e06ce2003-11-21 23:48:55 +1100227 nospace=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000228 add("[")
229 } else if(match(words[w],"^Pp$")) {
230 prenl++
231 } else if(match(words[w],"^An$")) {
232 prenl++
233 } else if(match(words[w],"^Ss$")) {
234 add(".SS")
235 } else if(match(words[w],"^Pa$")&&!option) {
236 add("\\fI")
237 w++
238 if(match(words[w],"^\\."))
Damien Millera8e06ce2003-11-21 23:48:55 +1100239 add("\\&")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000240 add(words[w] "\\fP")
241 while(w<nwords&&match(words[w+1],"^[\\.,:;)]"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100242 add(words[++w])
Darren Tucker167bd9c2003-09-07 12:34:54 +1000243 } else if(match(words[w],"^Dv$")) {
244 add(".BR")
245 } else if(match(words[w],"^Em|Ev$")) {
246 add(".IR")
247 } else if(match(words[w],"^Pq$")) {
248 add("(")
249 nospace=1
250 parens=1
251 } else if(match(words[w],"^Aq$")) {
252 add("<")
253 nospace=1
254 angles=1
255 } else if(match(words[w],"^S[xy]$")) {
256 add(".B " wtail())
257 } else if(match(words[w],"^Ic$")) {
258 plain=1
259 add("\\fB")
260 while(w<nwords) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100261 w++
262 if(match(words[w],"^Op$")) {
263 w++
264 add("[")
265 words[nwords]=words[nwords] "]"
266 }
267 if(match(words[w],"^Ar$")) {
268 add("\\fI" words[++w] "\\fP")
269 } else if(match(words[w],"^[\\.,]")) {
270 sub(" $","",line)
271 if(plain) {
272 add("\\fP")
273 plain=0
274 }
275 add(words[w])
276 } else {
277 if(!plain) {
278 add("\\fB")
279 plain=1
280 }
281 add(words[w])
282 }
283 if(!nospace)
284 add(OFS)
Darren Tucker167bd9c2003-09-07 12:34:54 +1000285 }
286 sub(" $","",line)
287 if(plain)
Damien Millera8e06ce2003-11-21 23:48:55 +1100288 add("\\fP")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000289 } else if(match(words[w],"^Bl$")) {
290 oldoptlist=optlist
291 if(match(words[w+1],"-bullet"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100292 optlist=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000293 else if(match(words[w+1],"-enum")) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100294 optlist=2
295 enum=0
Darren Tucker167bd9c2003-09-07 12:34:54 +1000296 } else if(match(words[w+1],"-tag"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100297 optlist=3
Darren Tucker167bd9c2003-09-07 12:34:54 +1000298 else if(match(words[w+1],"-item"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100299 optlist=4
Darren Tucker167bd9c2003-09-07 12:34:54 +1000300 else if(match(words[w+1],"-bullet"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100301 optlist=1
Darren Tucker167bd9c2003-09-07 12:34:54 +1000302 w=nwords
303 } else if(match(words[w],"^El$")) {
304 optlist=oldoptlist
Darren Tuckerd062da52004-07-02 18:43:09 +1000305 } else if(match(words[w],"^Bk$")) {
306 if(match(words[w+1],"-words")) {
307 w++
308 breakw=1
309 }
310 } else if(match(words[w],"^Ek$")) {
311 breakw=0
Darren Tucker167bd9c2003-09-07 12:34:54 +1000312 } else if(match(words[w],"^It$")&&optlist) {
313 if(optlist==1)
Damien Millera8e06ce2003-11-21 23:48:55 +1100314 add(".IP \\(bu")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000315 else if(optlist==2)
Damien Millera8e06ce2003-11-21 23:48:55 +1100316 add(".IP " ++enum ".")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000317 else if(optlist==3) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100318 add(".TP")
319 prenl++
Darren Tucker58cef1f2004-06-28 15:45:08 +1000320 if(match(words[w+1],"^Pa$|^Ev$")) {
Damien Millera8e06ce2003-11-21 23:48:55 +1100321 add(".B")
322 w++
323 }
Darren Tucker167bd9c2003-09-07 12:34:54 +1000324 } else if(optlist==4)
Damien Millera8e06ce2003-11-21 23:48:55 +1100325 add(".IP")
Darren Tucker167bd9c2003-09-07 12:34:54 +1000326 } else if(match(words[w],"^Sm$")) {
327 if(match(words[w+1],"off"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100328 nospace=2
Darren Tucker167bd9c2003-09-07 12:34:54 +1000329 else if(match(words[w+1],"on"))
Damien Millera8e06ce2003-11-21 23:48:55 +1100330 nospace=0
Darren Tucker167bd9c2003-09-07 12:34:54 +1000331 w++
332 } else if(!skip) {
333 add(words[w])
334 }
335 }
336 if(match(line,"^\\.[^a-zA-Z]"))
337 sub("^\\.","",line)
338 if(parens)
339 add(")")
340 if(angles)
341 add(">")
342 if(option)
343 add("]")
344 if(ext&&!extopt&&!match(line," $"))
345 add(OFS)
346 if(!ext&&!extopt&&length(line)) {
347 print line
348 prenl=0
349 line=""
350 }
351}