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4bbf95fa | 1 | #!/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 | ||
24 | BEGIN { | |
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 | |
544842de | 35 | breakw=0 |
4bbf95fa | 36 | line="" |
37 | } | |
38 | ||
39 | function 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 | ||
49 | function add(str) { | |
50 | for(;prenl;prenl--) | |
51 | line=line "\n" | |
52 | line=line str | |
53 | } | |
54 | ||
55 | ! /^\./ { | |
56 | for(;prenl;prenl--) | |
57 | print "" | |
58 | ||
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," $")||prenl)) | |
aff51935 | 80 | add(OFS) |
4bbf95fa | 81 | } else if(match(words[w],"^Xc$")) { |
82 | skip=1 | |
83 | ext=0 | |
84 | if(!extopt) | |
aff51935 | 85 | prenl++ |
4bbf95fa | 86 | w=nwords |
87 | } else if(match(words[w],"^Bd$")) { | |
88 | skip=1 | |
89 | if(match(words[w+1],"-literal")) { | |
aff51935 | 90 | literal=1 |
91 | prenl++ | |
92 | w=nwords | |
4bbf95fa | 93 | } |
94 | } else if(match(words[w],"^Ed$")) { | |
95 | skip=1 | |
96 | literal=0 | |
97 | } else if(match(words[w],"^Ns$")) { | |
98 | skip=1 | |
99 | if(!nospace) | |
aff51935 | 100 | nospace=1 |
4bbf95fa | 101 | 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],"^[\\.,]")) | |
aff51935 | 111 | add(OFS words[++w]) |
4bbf95fa | 112 | add("''") |
113 | if(!nospace&&match(words[w+1],"^[\\.,]")) | |
aff51935 | 114 | nospace=1 |
4bbf95fa | 115 | } else if(match(words[w],"^Sq|Ql$")) { |
116 | skip=1 | |
117 | add("`" words[++w] "'") | |
118 | if(!nospace&&match(words[w+1],"^[\\.,]")) | |
aff51935 | 119 | nospace=1 |
4bbf95fa | 120 | } else if(match(words[w],"^Oo$")) { |
121 | skip=1 | |
122 | extopt=1 | |
123 | if(!nospace) | |
aff51935 | 124 | nospace=1 |
4bbf95fa | 125 | 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," $")||prenl)) | |
aff51935 | 133 | add(OFS) |
4bbf95fa | 134 | if(nospace==1) |
aff51935 | 135 | nospace=0 |
4bbf95fa | 136 | } |
137 | if(match(words[w],"^Dd$")) { | |
138 | date=wtail() | |
139 | next | |
140 | } else if(match(words[w],"^Dt$")) { | |
141 | id=wtail() | |
142 | next | |
143 | } else if(match(words[w],"^Os$")) { | |
144 | add(".TH " id " \"" date "\" \"" wtail() "\"") | |
145 | } else if(match(words[w],"^Sh$")) { | |
146 | add(".SH") | |
147 | synopsis=match(words[w+1],"SYNOPSIS") | |
148 | } else if(match(words[w],"^Xr$")) { | |
149 | add("\\fB" words[++w] "\\fP(" words[++w] ")" words[++w]) | |
150 | } else if(match(words[w],"^Rs$")) { | |
151 | split("",refauthors) | |
152 | nrefauthors=0 | |
153 | reftitle="" | |
154 | refissue="" | |
155 | refdate="" | |
156 | refopt="" | |
157 | reference=1 | |
158 | next | |
159 | } else if(match(words[w],"^Re$")) { | |
160 | prenl++ | |
161 | for(i=nrefauthors-1;i>0;i--) { | |
aff51935 | 162 | add(refauthors[i]) |
163 | if(i>1) | |
164 | add(", ") | |
4bbf95fa | 165 | } |
166 | if(nrefauthors>1) | |
aff51935 | 167 | add(" and ") |
4bbf95fa | 168 | add(refauthors[0] ", \\fI" reftitle "\\fP") |
169 | if(length(refissue)) | |
aff51935 | 170 | add(", " refissue) |
4bbf95fa | 171 | if(length(refdate)) |
aff51935 | 172 | add(", " refdate) |
4bbf95fa | 173 | if(length(refopt)) |
aff51935 | 174 | add(", " refopt) |
4bbf95fa | 175 | add(".") |
176 | reference=0 | |
177 | } else if(reference) { | |
178 | if(match(words[w],"^%A$")) { refauthors[nrefauthors++]=wtail() } | |
179 | if(match(words[w],"^%T$")) { | |
aff51935 | 180 | reftitle=wtail() |
181 | sub("^\"","",reftitle) | |
182 | sub("\"$","",reftitle) | |
4bbf95fa | 183 | } |
184 | if(match(words[w],"^%N$")) { refissue=wtail() } | |
185 | if(match(words[w],"^%D$")) { refdate=wtail() } | |
186 | if(match(words[w],"^%O$")) { refopt=wtail() } | |
187 | } else if(match(words[w],"^Nm$")) { | |
188 | if(synopsis) { | |
aff51935 | 189 | add(".br") |
190 | prenl++ | |
4bbf95fa | 191 | } |
192 | n=words[++w] | |
193 | if(!length(name)) | |
aff51935 | 194 | name=n |
4bbf95fa | 195 | if(!length(n)) |
aff51935 | 196 | n=name |
4bbf95fa | 197 | add("\\fB" n "\\fP") |
198 | if(!nospace&&match(words[w+1],"^[\\.,]")) | |
aff51935 | 199 | nospace=1 |
4bbf95fa | 200 | } else if(match(words[w],"^Nd$")) { |
201 | add("\\- " wtail()) | |
202 | } else if(match(words[w],"^Fl$")) { | |
203 | add("\\fB\\-" words[++w] "\\fP") | |
204 | if(!nospace&&match(words[w+1],"^[\\.,]")) | |
aff51935 | 205 | nospace=1 |
4bbf95fa | 206 | } else if(match(words[w],"^Ar$")) { |
207 | add("\\fI") | |
208 | if(w==nwords) | |
aff51935 | 209 | add("file ...\\fP") |
4bbf95fa | 210 | else { |
aff51935 | 211 | add(words[++w] "\\fP") |
212 | while(match(words[w+1],"^\\|$")) | |
213 | add(OFS words[++w] " \\fI" words[++w] "\\fP") | |
4bbf95fa | 214 | } |
215 | if(!nospace&&match(words[w+1],"^[\\.,]")) | |
aff51935 | 216 | nospace=1 |
4bbf95fa | 217 | } else if(match(words[w],"^Cm$")) { |
218 | add("\\fB" words[++w] "\\fP") | |
219 | while(w<nwords&&match(words[w+1],"^[\\.,:;)]")) | |
aff51935 | 220 | add(words[++w]) |
4bbf95fa | 221 | } else if(match(words[w],"^Op$")) { |
222 | option=1 | |
223 | if(!nospace) | |
aff51935 | 224 | nospace=1 |
4bbf95fa | 225 | add("[") |
226 | } else if(match(words[w],"^Pp$")) { | |
227 | prenl++ | |
228 | } else if(match(words[w],"^An$")) { | |
229 | prenl++ | |
230 | } else if(match(words[w],"^Ss$")) { | |
231 | add(".SS") | |
232 | } else if(match(words[w],"^Pa$")&&!option) { | |
233 | add("\\fI") | |
234 | w++ | |
235 | if(match(words[w],"^\\.")) | |
aff51935 | 236 | add("\\&") |
4bbf95fa | 237 | add(words[w] "\\fP") |
238 | while(w<nwords&&match(words[w+1],"^[\\.,:;)]")) | |
aff51935 | 239 | add(words[++w]) |
4bbf95fa | 240 | } else if(match(words[w],"^Dv$")) { |
241 | add(".BR") | |
242 | } else if(match(words[w],"^Em|Ev$")) { | |
243 | add(".IR") | |
244 | } else if(match(words[w],"^Pq$")) { | |
245 | add("(") | |
246 | nospace=1 | |
247 | parens=1 | |
248 | } else if(match(words[w],"^Aq$")) { | |
249 | add("<") | |
250 | nospace=1 | |
251 | angles=1 | |
252 | } else if(match(words[w],"^S[xy]$")) { | |
253 | add(".B " wtail()) | |
254 | } else if(match(words[w],"^Ic$")) { | |
255 | plain=1 | |
256 | add("\\fB") | |
257 | while(w<nwords) { | |
aff51935 | 258 | w++ |
259 | if(match(words[w],"^Op$")) { | |
260 | w++ | |
261 | add("[") | |
262 | words[nwords]=words[nwords] "]" | |
263 | } | |
264 | if(match(words[w],"^Ar$")) { | |
265 | add("\\fI" words[++w] "\\fP") | |
266 | } else if(match(words[w],"^[\\.,]")) { | |
267 | sub(" $","",line) | |
268 | if(plain) { | |
269 | add("\\fP") | |
270 | plain=0 | |
271 | } | |
272 | add(words[w]) | |
273 | } else { | |
274 | if(!plain) { | |
275 | add("\\fB") | |
276 | plain=1 | |
277 | } | |
278 | add(words[w]) | |
279 | } | |
280 | if(!nospace) | |
281 | add(OFS) | |
4bbf95fa | 282 | } |
283 | sub(" $","",line) | |
284 | if(plain) | |
aff51935 | 285 | add("\\fP") |
4bbf95fa | 286 | } else if(match(words[w],"^Bl$")) { |
287 | oldoptlist=optlist | |
288 | if(match(words[w+1],"-bullet")) | |
aff51935 | 289 | optlist=1 |
4bbf95fa | 290 | else if(match(words[w+1],"-enum")) { |
aff51935 | 291 | optlist=2 |
292 | enum=0 | |
4bbf95fa | 293 | } else if(match(words[w+1],"-tag")) |
aff51935 | 294 | optlist=3 |
4bbf95fa | 295 | else if(match(words[w+1],"-item")) |
aff51935 | 296 | optlist=4 |
4bbf95fa | 297 | else if(match(words[w+1],"-bullet")) |
aff51935 | 298 | optlist=1 |
4bbf95fa | 299 | w=nwords |
300 | } else if(match(words[w],"^El$")) { | |
301 | optlist=oldoptlist | |
544842de | 302 | } else if(match(words[w],"^Bk$")) { |
303 | if(match(words[w+1],"-words")) { | |
304 | w++ | |
305 | breakw=1 | |
306 | } | |
307 | } else if(match(words[w],"^Ek$")) { | |
308 | breakw=0 | |
4bbf95fa | 309 | } else if(match(words[w],"^It$")&&optlist) { |
310 | if(optlist==1) | |
aff51935 | 311 | add(".IP \\(bu") |
4bbf95fa | 312 | else if(optlist==2) |
aff51935 | 313 | add(".IP " ++enum ".") |
4bbf95fa | 314 | else if(optlist==3) { |
aff51935 | 315 | add(".TP") |
316 | prenl++ | |
78666263 | 317 | if(match(words[w+1],"^Pa$|^Ev$")) { |
aff51935 | 318 | add(".B") |
319 | w++ | |
320 | } | |
4bbf95fa | 321 | } else if(optlist==4) |
aff51935 | 322 | add(".IP") |
4bbf95fa | 323 | } else if(match(words[w],"^Sm$")) { |
324 | if(match(words[w+1],"off")) | |
aff51935 | 325 | nospace=2 |
4bbf95fa | 326 | else if(match(words[w+1],"on")) |
aff51935 | 327 | nospace=0 |
4bbf95fa | 328 | w++ |
329 | } else if(!skip) { | |
330 | add(words[w]) | |
331 | } | |
332 | } | |
333 | if(match(line,"^\\.[^a-zA-Z]")) | |
334 | sub("^\\.","",line) | |
335 | if(parens) | |
336 | add(")") | |
337 | if(angles) | |
338 | add(">") | |
339 | if(option) | |
340 | add("]") | |
341 | if(ext&&!extopt&&!match(line," $")) | |
342 | add(OFS) | |
343 | if(!ext&&!extopt&&length(line)) { | |
344 | print line | |
345 | prenl=0 | |
346 | line="" | |
347 | } | |
348 | } |