]> git.cameronkatri.com Git - mandoc.git/blob - TODO
[[:<:]] is not POSIX
[mandoc.git] / TODO
1 ************************************************************************
2 * Official mandoc TODO.
3 * $Id: TODO,v 1.196 2014/12/17 20:31:19 schwarze Exp $
4 ************************************************************************
5
6 Many issues are annotated for difficulty as follows:
7
8 - loc = locality of the issue
9 * single file issue, affects file only, or very few
10 ** single module issue, affects several files of one module
11 *** cross-module issue, significantly impacts multiple modules
12 and may require substantial changes to internal interfaces
13 - exist = difficulty of the existing code in this area
14 * affected code is straightforward and easy to read and change
15 ** affected code is somewhat complex, but once you understand
16 the design, not particularly difficult to understand
17 *** affected code uses a special, exceptionally tricky design
18 - algo = difficulty of the new algorithm to be written
19 * the required logic and code is straightforward
20 ** the required logic is somewhat complex and needs a careful design
21 *** the required logic is exceptionally tricky,
22 maybe an approach to solve that is not even known yet
23 - size = the amount of code to be written or changed
24 * a small number of lines (at most 100, usually much less)
25 ** a considerable amount of code (several dozen to a few hundred)
26 *** a large amount of code (many hundreds, maybe thousands)
27 - imp = importance of the issue
28 * mostly for completeness
29 ** would be nice to have
30 *** issue causes considerable inconvenience
31
32 Obviously, as the issues have not been solved yet, these annotations
33 are mere guesses, and some may be wrong.
34
35 ************************************************************************
36 * crashes
37 ************************************************************************
38
39 - The abort() in bufcat(), html.c, can be triggered via buffmt_includes()
40 by running -Thtml -Oincludes on a file containing a long .In argument.
41 Fixing this will probably require reworking the whole bufcat() concept.
42 loc ** exist * algo * size ** imp **
43
44 ************************************************************************
45 * missing features
46 ************************************************************************
47
48 --- missing roff features ----------------------------------------------
49
50 - .ad (adjust margins)
51 .ad l -- adjust left margin only (flush left)
52 .ad r -- adjust right margin only (flush right)
53 .ad c -- center text on line
54 .ad b -- adjust both margins (alias: .ad n)
55 .na -- temporarily disable adjustment without changing the mode
56 .ad -- re-enable adjustment without changing the mode
57 Adjustment mode is ignored while in no-fill mode (.nf).
58 loc *** exist *** algo ** size ** imp ** (parser reorg would help)
59
60 - .fc (field control)
61 found by naddy@ in xloadimage(1)
62 loc ** exist *** algo * size * imp *
63
64 - .nr third argument (auto-increment step size, requires \n+)
65 found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
66 loc * exist * algo * size * imp **
67
68 - .ns (no-space mode) occurs in xine-config(1)
69 reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
70 loc *** exist *** algo *** size ** imp *
71
72 - .ta (tab settings) occurs in ircbug(1) and probably gnats(1)
73 reported by brad@ Sat, 15 Jan 2011 15:50:51 -0500
74 also Tcl_NewStringObj(3) via wiz@ Wed, 5 Mar 2014 22:27:43 +0100
75 also posix2time(3) Carsten Kunze Mon, 1 Dec 2014 13:03:10 +0100
76 loc ** exist *** algo ** size ** imp ***
77
78 - .ti (temporary indent)
79 found by naddy@ in xloadimage(1)
80 found by bentley@ in nmh(1) Mon, 23 Apr 2012 13:38:28 -0600
81 loc ** exist ** algo ** size * imp ** (parser reorg helps a lot)
82
83 - .while and .shift
84 found by jca@ in ratpoison(1) Sun, 30 Jun 2013 12:01:09 +0200
85 loc * exist ** algo ** size ** imp **
86
87 - \h horizontal move
88 found in cclive(1) and nasm(1) asciidoc/DocBook output
89 bentley@ on discuss@ Sat, 21 Sep 2013 22:29:34 -0600
90 naddy@ Thu, 4 Dec 2014 16:26:41 +0100
91 loc ** exist ** algo ** size * imp ** (parser reorg helps a lot)
92
93 - \n+ and \n- numerical register increment and decrement
94 found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
95 loc * exist * algo * size * imp **
96
97 - \w'' improve width measurements
98 would not be very useful without an expression parser, see below
99 needed for Tcl_NewStringObj(3) via wiz@ Wed, 5 Mar 2014 22:27:43 +0100
100 loc ** exist *** algo *** size * imp ***
101
102 - using undefined strings or macros defines them to be empty
103 wl@ Mon, 14 Nov 2011 14:37:01 +0000
104 loc * exist * algo * size * imp *
105
106 --- missing mdoc features ----------------------------------------------
107
108 - fix bad block nesting involving multiple identical explicit blocks
109 see the OpenBSD mdoc_macro.c 1.47 commit message
110 loc * exist *** algo *** size * imp **
111
112 - .Bl -column .Xo support is missing
113 ultimate goal:
114 restore .Xr and .Dv to
115 lib/libc/compat-43/sigvec.3
116 lib/libc/gen/signal.3
117 lib/libc/sys/sigaction.2
118 loc * exist *** algo *** size * imp **
119
120 - edge case: decide how to deal with blk_full bad nesting, e.g.
121 .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
122 from jmc@ Wed, 14 Jul 2010 18:10:32 +0100
123 loc * exist *** algo *** size ** imp **
124
125 - .Bd -centered implies -filled, not -unfilled, which is not
126 easy to implement; it requires code similar to .ce, which
127 we don't have either.
128 Besides, groff has bug causing text right *before* .Bd -centered
129 to be centered as well.
130 loc *** exist *** algo ** size ** imp ** (parser reorg would help)
131
132 - .Bd -filled should not be the same as .Bd -ragged, but align both
133 the left and right margin. In groff, it is implemented in terms
134 of .ad b, which we don't have either. Found in cksum(1).
135 loc *** exist *** algo ** size ** imp ** (parser reorg would help)
136
137 - implement blank `Bl -column', such as
138 .Bl -column
139 .It foo Ta bar
140 .El
141 loc * exist *** algo *** size * imp *
142
143 - explicitly disallow nested `Bl -column', which would clobber internal
144 flags defined for struct mdoc_macro
145 loc * exist * algo * size * imp **
146
147 - In .Bl -column .It, the end of the line probably has to be regarded
148 as an implicit .Ta, if there could be one, see the following mildly
149 ugly code from login.conf(5):
150 .Bl -column minpasswordlen program xetcxmotd
151 .It path Ta path Ta value of Dv _PATH_DEFPATH
152 .br
153 Default search path.
154 reported by Michal Mazurek <akfaew at jasminek dot net>
155 via jmc@ Thu, 7 Apr 2011 16:00:53 +0059
156 loc * exist *** algo ** size * imp **
157
158 - inside `.Bl -column' phrases, punctuation is handled like normal
159 text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
160
161 - inside `.Bl -column' phrases, TERMP_IGNDELIM handling by `Pf'
162 is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
163 but should give "ab ."
164
165 - check whether it is correct that `D1' uses INDENT+1;
166 does it need its own constant?
167 loc * exist ** algo ** size * imp **
168
169 - prohibit `Nm' from having non-text HEAD children
170 (e.g., NetBSD mDNSShared/dns-sd.1)
171 (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
172
173 - support translated section names
174 e.g. x11/scrotwm scrotwm_es.1:21:2: error: NAME section must be first
175 that one uses NOMBRE because it is spanish...
176 deraadt tends to think that section-dependent macro behaviour
177 is a bad idea in the first place, so this may be irrelevant
178 loc ** exist ** algo ** size * imp **
179
180 - When there is free text in the SYNOPSIS and that free text contains
181 the .Nm macro, groff somehow understands to treat the .Nm as an in-line
182 macro, while mandoc treats it as a block macro and breaks the line.
183 No idea how the logic for distinguishing in-line and block instances
184 should be, needs investigation.
185 uqs@ Thu, 2 Jun 2011 11:03:51 +0200
186 uqs@ Thu, 2 Jun 2011 11:33:35 +0200
187 loc * exist ** algo *** size * imp **
188
189 --- missing man features -----------------------------------------------
190
191 - -T[x]html doesn't stipulate non-collapsing spaces in literal mode
192
193 --- missing tbl features -----------------------------------------------
194
195 - look at the POSIX manuals in the books/man-pages-posix port,
196 they use some unsupported tbl(7) features.
197 loc * exist ** algo ** size ** imp ***
198
199 - use Unicode U+2500 to U+256C for table borders
200 in tbl(7) -Tutf-8 output
201 suggested by bentley@ Tue, 14 Oct 2014 04:10:55 -0600
202 loc * exist ** algo * size * imp **
203
204 - allow standalone `.' to be interpreted as an end-of-layout
205 delimiter instead of being thrown away as a no-op roff line
206 reported by Yuri Pankov, Wed 18 May 2011 11:34:59 CEST
207 loc ** exist ** algo ** size * imp **
208
209 --- missing eqn features -----------------------------------------------
210
211 - The "size" keyword is parsed, but ignored by the formatter.
212 loc * exist * algo * size * imp *
213
214 - The spacing characters `~', `^', and tab are currently ignored,
215 see User's Guide (Second Edition) page 2 section 4.
216 loc * exist * algo ** size * imp **
217
218 - Mark and lineup are parsed and ignored,
219 see User's Guide (Second Edition) page 5 section 15.
220 loc ** exist ** algo ** size ** imp **
221
222 --- missing misc features ----------------------------------------------
223
224 - italic correction (\/) in PostScript mode
225 Werner LEMBERG on groff at gnu dot org Sun, 10 Nov 2013 12:47:46
226 loc ** exist ** algo * size * imp *
227
228 - When makewhatis(8) encounters a FATAL parse error,
229 it silently treats the file as formatted, which makes no sense
230 at all for paths like man1/foo.1 - and which also contradicts
231 what the manual says at the end of the description.
232 The end result will be ENOENT for file names returned
233 by mansearch() in manpage.file.
234 loc * exist * algo * size * imp **
235
236 - makewhatis(8) for preformatted pages:
237 parse the section number from the header line
238 and compare to the section number from the directory name
239 loc * exist * algo * size * imp **
240
241 - Does makewhatis(8) detect missing NAME sections, missing names,
242 and missing descriptions in all the file formats?
243 loc * exist * algo * size * imp ***
244
245 - clean up escape sequence handling, creating three classes:
246 (1) fully implemented, or parsed and ignored without loss of content
247 (2) unimplemented, potentially causing loss of content
248 or serious mangling of formatting (e.g. \n) -> ERROR
249 see textproc/mgdiff(1) for nice examples
250 (3) undefined, just output the character -> perhaps WARNING
251 loc *** exist ** algo ** size ** imp *** (parser reorg helps)
252
253 - kettenis wants base roff, ms, and me Fri, 1 Jan 2010 22:13:15 +0100 (CET)
254 loc ** exist ** algo ** size *** imp *
255
256 --- compatibility checks -----------------------------------------------
257
258 - write a configure check for [[:<:]] support and provide some
259 fallback for whatis(1) when it doesn't work;
260 Svyatoslav Mishyn Wed, 17 Dec 2014 11:07:10 +0200
261
262 - is .Bk implemented correctly in modern groff?
263 sobrado@ Tue, 19 Apr 2011 22:12:55 +0200
264
265 - compare output to Heirloom roff, Solaris roff, and
266 http://repo.or.cz/w/neatroff.git http://litcave.rudi.ir/
267
268 - look at AT&T DWB http://www2.research.att.com/sw/download
269 Carsten Kunze <carsten dot kunze at arcor dot de> has patches
270 Mon, 4 Aug 2014 17:01:28 +0200
271
272 - look at pages generated from reStructeredText, e.g. devel/mercurial hg(1)
273 These are a weird mixture of man(7) and custom autogenerated low-level
274 roff stuff. Figure out to what extent we can cope.
275 For details, see http://docutils.sourceforge.net/rst.html
276 noted by stsp@ Sat, 24 Apr 2010 09:17:55 +0200
277 reminded by nicm@ Mon, 3 May 2010 09:52:41 +0100
278
279 - look at pages generated from ronn(1) github.com/rtomayko/ronn
280 (based on markdown)
281
282 - look at pages generated from Texinfo source by yat2m, e.g. security/gnupg
283 First impression is not that bad.
284
285 - look at pages generated by pandoc; see
286 https://github.com/jgm/pandoc/blob/master/src/Text/Pandoc/Writers/Man.hs
287 porting planned by kili@ Thu, 19 Jun 2014 19:46:28 +0200
288
289 - check compatibility with Plan9:
290 http://swtch.com/usr/local/plan9/tmac/tmac.an
291 http://swtch.com/plan9port/man/man7/man.html
292 "Anthony J. Bentley" <anthonyjbentley@gmail.com> 28 Dec 2010 21:58:40 -0700
293
294 - check compatibility with the man(7) formatter
295 https://raw.githubusercontent.com/rofl0r/hardcore-utils/master/man.c
296
297 - check compatibility with
298 http://ikiwiki.info/plugins/contrib/mandoc/
299 https://github.com/schmonz/ikiwiki/compare/mandoc
300 Amitai Schlair Mon, 19 May 2014 14:05:53 -0400
301
302 ************************************************************************
303 * formatting issues: ugly output
304 ************************************************************************
305
306 - revisit empty in-line macros
307 look at the difference between "Em x Em ." and "Sq x Em ."
308 Carsten Kunze Fri, 12 Dec 2014 00:15:41 +0100
309 loc *** exist *** algo *** size * imp **
310
311 - a column list with blank `Ta' cells triggers a spurious
312 start-with-whitespace printing of a newline
313
314 - In .Bl -column, .It a<tab>"b<tab>c"
315 shows the quotes in groff, but not in mandoc
316 loc * exist *** algo ** size * imp **
317
318 - In .Bl -column,
319 .It Em Authentication<tab>Key Length
320 ought to render "Key Length" with emphasis, too,
321 see OpenBSD iked.conf(5).
322 reported again Nicolas Joly via wiz@ Wed, 12 Oct 2011 00:20:00 +0200
323 loc * exist *** algo *** size ** imp ***
324
325 - empty phrases in .Bl column produce too few blanks
326 try e.g. .Bl -column It Ta Ta
327 reported by millert Fri, 02 Apr 2010 16:13:46 -0400
328 loc * exist *** algo *** size * imp **
329
330 - .%T can have trailing punctuation. Currently, it puts the trailing
331 punctuation into a trailing MDOC_TEXT element inside its own scope.
332 That element should rather be outside its scope, such that the
333 punctuation does not get underlines. This is not trivial to
334 implement because .%T then needs some features of in_line_eoln() -
335 slurp all arguments into one single text element - and one feature
336 of in_line() - put trailing punctuation out of scope.
337 Found in mount_nfs(8) and exports(5), search for "Appendix".
338 loc ** exist ** algo *** size * imp **
339
340 - Trailing punctuation after .%T triggers EOS spacing, at least
341 outside .Rs (eek!). Simply setting ARGSFL_DELIM for .%T is not
342 the right solution, it sends mandoc into an endless loop.
343 reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
344 loc * exist ** algo ** size * imp **
345
346 - global variables in the SYNOPSIS of section 3 pages
347 .Vt vs .Vt/.Va vs .Ft/.Va vs .Ft/.Fa ...
348 from kristaps@ Tue, 08 Jun 2010 11:13:32 +0200
349
350 - in enclosures, mandoc sometimes fancies a bogus end of sentence
351 reminded by jmc@ Thu, 23 Sep 2010 18:13:39 +0059
352 loc * exist ** algo *** size * imp ***
353
354 - formatting /usr/local/man/man1/latex2man.1 with groff and mandoc
355 reveals lots of bugs both in groff and mandoc...
356 reported by bentley@ Wed, 22 May 2013 23:49:30 -0600
357
358 --- PDF issues ---------------------------------------------------------
359
360 - PDF output doesn't use a monospaced font for .Bd -literal
361 Example: "mandoc -Tpdf afterboot.8 > output.pdf && pdfviewer output.pdf".
362 Search the text "Routing tables".
363 Also check what PostScript mode does when fixing this.
364 reported by juanfra@ Wed, 04 Jun 2014 21:44:58 +0200
365 instructions from juanfra@ Wed, 11 Jun 2014 02:21:01 +0200
366 add a new <</Type /Font>> block to the PDF files with /BaseFont /Courier
367 and change the /Name from /F0 to the new font (/F5 (?)).
368 loc * exist ** algo ** size * imp **
369
370 --- HTML issues --------------------------------------------------------
371
372 - <dl><dt><dd> formatting is ugly
373 hints are easy to find on the web, e.g.
374 http://stackoverflow.com/questions/1713048/
375 see also matthew@ Fri, 18 Jul 2014 19:25:12 -0700
376 loc * exist * algo ** size * imp ***
377
378 - jsg on icb, Nov 3, 2014:
379 try to guess Xr in man(7) for hyperlinking
380
381 - The tables used to render the three-part page headers actually force
382 the width of the <body> to the max-width given for <html>.
383 Not yet sure how to fix that...
384 Observed by an Anonymous Coward on undeadly.org:
385 http://undeadly.org/cgi?action=article&sid=20140925064244&pid=1
386 loc * exist * algo ** size * imp ***
387
388 - consider whether <var> can be used for Ar Dv Er Ev Fa Va.
389 from bentley@ Wed, 13 Aug 2014 09:17:55 -0600
390
391 - check https://github.com/trentm/mdocml
392
393 ************************************************************************
394 * formatting issues: gratuitous differences
395 ************************************************************************
396
397 - .Fn reopens a new scope after punctuation in mandoc,
398 but closes its scope for good in groff.
399 Do we want to change mandoc or groff?
400 Steffen Nurpmeso Sat, 08 Nov 2014 13:34:59 +0100
401 loc * exist ** algo ** size * imp **
402
403 - In .Bl -enum -width 0n, groff continues one the same line after
404 the number, mandoc breaks the line.
405 mail to kristaps@ Mon, 20 Jul 2009 02:21:39 +0200
406 loc * exist ** algo ** size * imp **
407
408 - .Pp between two .It in .Bl -column should produce one,
409 not two blank lines, see e.g. login.conf(5).
410 reported by jmc@ Sun, 17 Apr 2011 14:04:58 +0059
411 reported again by sthen@ Wed, 18 Jan 2012 02:09:39 +0000 (UTC)
412 loc * exist *** algo ** size * imp **
413
414 - If the *first* line after .It is .Pp, break the line right after
415 the tag, do not pad with space characters before breaking.
416 See the description of the a, c, and i commands in sed(1).
417 loc * exist ** algo ** size * imp **
418
419 - If the first line after .It is .D1, do not assert a blank line
420 in between, see for example tmux(1).
421 reported by nicm@ 13 Jan 2011 00:18:57 +0000
422 loc * exist ** algo ** size * imp **
423
424 - Trailing punctuation after .It should trigger EOS spacing.
425 reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
426 Probably, this should be fixed somewhere in termp_it_pre(), not sure.
427 loc * exist ** algo ** size * imp **
428
429 - .Nx 1.0a
430 should be "NetBSD 1.0A", not "NetBSD 1.0a",
431 see OpenBSD ccdconfig(8).
432 loc * exist * algo * size * imp **
433
434 - In .Bl -tag, if a tag exceeds the right margin and must be continued
435 on the next line, it must be indented by -width, not width+1;
436 see "rule block|pass" in OpenBSD ifconfig(8).
437 loc * exist *** algo ** size * imp **
438
439 - When the -width string contains macros, the macros must be rendered
440 before measuring the width, for example
441 .Bl -tag -width ".Dv message"
442 in magic(5), located in src/usr.bin/file, is the same
443 as -width 7n, not -width 11n.
444 The same applies to .Bl -column column widths;
445 reported again by Nicolas Joly Thu, 1 Mar 2012 13:41:26 +0100 via wiz@ 5 Mar
446 reported again by Franco Fichtner Fri, 27 Sep 2013 21:02:28 +0200
447 loc *** exist *** algo *** size ** imp ***
448 An easy partial fix would be to just skip the first word if it starts
449 with a dot, including any following white space, when measuring.
450 loc * exist * algo * size * imp ***
451
452 - The \& zero-width character counts as output.
453 That is, when it is alone on a line between two .Pp,
454 we want three blank lines, not two as in mandoc.
455 loc ** exist ** algo ** size * imp **
456
457 - Header lines of excessive length:
458 Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c
459 and document it in mdoc(7) and man(7) COMPATIBILITY
460 found while talking to Chris Bennett
461 loc * exist * algo * size * imp *
462
463 - trailing whitespace must be ignored even when followed by a font escape,
464 see for example
465 makes
466 \fBdig \fR
467 operate in batch mode
468 in dig(1).
469 loc ** exist ** algo ** size * imp **
470
471 ************************************************************************
472 * warning issues
473 ************************************************************************
474
475 - check that MANDOCERR_BADTAB is thrown in the right cases,
476 i.e. when finding a literal tab character in fill mode,
477 and possibly change the wording of the warning message
478 to refer to fill mode, not literal mode
479 See the mail from Werner LEMBERG on the groff list,
480 Fri, 14 Feb 2014 18:54:42 +0100 (CET)
481 loc * exist ** algo ** size * imp **
482
483 - warn about attempts to call non-callable macros
484 Steffen Nurpmeso Tue, 11 Nov 2014 22:55:16 +0100
485 Note that formatting is inconsistent in groff.
486 .Fn Po prints "Po()", .Ar Sh prints "file ..." and no "Sh".
487 Relatively hard because the relevant code is scattered
488 all over mdoc_macro.c and all subtly different.
489 loc ** exist ** algo ** size ** imp **
490
491 - warn about "new sentence, new line"
492 loc ** exist ** algo *** size * imp **
493
494 - mandoc_special does not really check the escape sequence,
495 but just the overall format
496 loc ** exist ** algo *** size ** imp **
497
498 - integrate mdoclint into mandoc ("end-of-line whitespace" thread)
499 from jmc@ Mon, 13 Jul 2009 17:12:09 +0100
500 from kristaps@ Mon, 13 Jul 2009 18:34:53 +0200
501 from jmc@ Mon, 13 Jul 2009 17:45:37 +0059
502 from kristaps@ Mon, 13 Jul 2009 19:02:03 +0200
503 (mostly done, check what remains)
504
505 - -Tlint parser errors and warnings to stdout
506 to tech@mdocml, naddy@ Wed, 28 Sep 2011 11:21:46 +0200
507 wait! kristaps@ Sun, 02 Oct 2011 17:12:52 +0200
508
509 - for system errors, use errno/strerror/warn/err
510
511 ************************************************************************
512 * documentation issues
513 ************************************************************************
514
515 - mention hyphenation rules:
516 breaking at letter-letter in text mode (not macro args)
517 proper hyphenation is unimplemented
518
519 - talk about spacing around delimiters
520 to jmc@, kristaps@ Sat, 23 Apr 2011 17:41:27 +0200
521
522 - mark macros as: page structure domain, manual domain, general text domain
523 is this useful?
524
525 - mention /usr/share/misc/mdoc.template in mdoc(7)?
526
527 - Is all the content from http://www.std.com/obi/BSD/doc/usd/28.tbl/tbl
528 covered in tbl(7)?
529
530 ************************************************************************
531 * performance issues
532 ************************************************************************
533
534 - Why are we using MAP_SHARED, not MAP_PRIVATE for mmap(2)?
535 How does SQLITE_CONFIG_PAGECACHE actually work? Document it!
536 from kristaps@ Sat, 09 Aug 2014 13:51:36 +0200
537
538 Several areas can be cleaned up to make mandoc even faster. These are
539
540 - improve hashing mechanism for macros (quite important: performance)
541
542 - improve hashing mechanism for characters (not as important)
543
544 - the PDF file is HUGE: this can be reduced by using relative offsets
545
546 - instead of re-initialising the roff predefined-strings set before each
547 parse, create a read-only version the first time and copy it
548 loc * exist ** algo ** size * imp **
549
550 ************************************************************************
551 * structural issues
552 ************************************************************************
553
554 - Use libz directly instead of forking gunzip(1).
555 Suggested by bapt at FreeBSD among others.
556
557 - We use the input line number at several places to distinguish
558 same-line from different-line input. That plainly doesn't work
559 with user-defined macros, leading to random breakage.
560
561 - Find better ways to prevent endless loops
562 in roff(7) macro and string expansion.
563
564 - Finish cleanup of date handling.
565 Decide which formats should be recognized where.
566 Update both mdoc(7) and man(7) documentation.
567 Triggered by Tim van der Molen Tue, 22 Feb 2011 20:30:45 +0100
568
569 - struct mparse refactoring
570 Steffen Nurpmeso Thu, 04 Sep 2014 12:50:00 +0200
571
572 - Consider creating some views that will make the database more
573 readable from the sqlite3 shell. Consider using them to
574 abstract from the database structure, too.
575 suggested by espie@ Sat, 19 Apr 2014 14:52:57 +0200
576
577 ************************************************************************
578 * CGI issues
579 ************************************************************************
580
581 - Enable HTTP compression by detecting gzip encoding and filtering
582 output through libz.
583 - Sandbox (see OpenSSH).
584 - Enable caching support via HTTP 304 and If-Modified-Since.
585 - Allow for cgi.h to be overridden by CGI environment variables.
586 Otherwise, binary distributions will inherit the compile-time
587 behaviour, which is not optimal.
588 - Have Mac OSX systems automatically disable -static compilation of the
589 CGI: -static isn't supported.
590
591 ************************************************************************
592 * to improve in the groff_mdoc(7) macros
593 ************************************************************************
594
595 - use uname(1) to set doc-default-operating-system at install time
596 tobimensch Mon, 1 Dec 2014 00:25:07 +0100