Annotation of mandoc/TODO, Revision 1.306
1.1 kristaps 1: ************************************************************************
1.37 kristaps 2: * Official mandoc TODO.
1.306 ! schwarze 3: * $Id: TODO,v 1.305 2020/09/01 18:10:28 schwarze Exp $
1.27 kristaps 4: ************************************************************************
1.145 schwarze 5:
1.184 schwarze 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.
1.306 ! schwarze 34:
! 35: ************************************************************************
! 36: * assertion failures
! 37: ************************************************************************
! 38:
! 39: - .if n .ce in the middle of .TS data
! 40: afl case f1/id:000103,sig:06,src:009024+009105,op:splice,rep:2 (jes@)
! 41: While roff_parseln() prevents .ce and similar requests in the middle
! 42: of a tbl, the guard is no longer effective when the .ce is wrapped
! 43: in a roff block, for example a conditional. The resulting assertion
! 44: has never been seen in any real-world manual page.
! 45: This is too dangerous to fix before release because it requires
! 46: reorganizing the very delicate internals of roff_parseln(),
! 47: which risks causing more severe bugs.
! 48: loc * exist *** algo *** size * imp *
1.296 schwarze 49:
50: ************************************************************************
1.1 kristaps 51: * missing features
52: ************************************************************************
1.70 kristaps 53:
1.79 schwarze 54: --- missing roff features ----------------------------------------------
1.258 schwarze 55:
1.82 schwarze 56: - .ad (adjust margins)
57: .ad l -- adjust left margin only (flush left)
58: .ad r -- adjust right margin only (flush right)
59: .ad c -- center text on line
60: .ad b -- adjust both margins (alias: .ad n)
61: .na -- temporarily disable adjustment without changing the mode
62: .ad -- re-enable adjustment without changing the mode
63: Adjustment mode is ignored while in no-fill mode (.nf).
1.184 schwarze 64: loc *** exist *** algo ** size ** imp ** (parser reorg would help)
1.150 schwarze 65:
66: - .fc (field control)
67: found by naddy@ in xloadimage(1)
1.184 schwarze 68: loc ** exist *** algo * size * imp *
1.198 schwarze 69:
1.80 schwarze 70: - .ns (no-space mode) occurs in xine-config(1)
1.205 schwarze 71: when implementing this, also let .TH set it
1.80 schwarze 72: reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
1.184 schwarze 73: loc *** exist *** algo *** size ** imp *
1.201 schwarze 74:
1.184 schwarze 75: - \w'' improve width measurements
1.167 schwarze 76: would not be very useful without an expression parser, see below
77: needed for Tcl_NewStringObj(3) via wiz@ Wed, 5 Mar 2014 22:27:43 +0100
1.184 schwarze 78: loc ** exist *** algo *** size * imp ***
1.291 schwarze 79:
80: - .als only works for macros in mandoc, not for user-defined strings.
81: Also, the "val" field in struct roffkv would have to be replaced
82: with a pointer to a reference-counted wrapper, and an alias
83: would have to point to the same wrapper as the original.
84: .als to undefined does nothing; the alias is not created.
85: .rm'ing the original leaves the alias to point to the old value.
86: .de .als .de changes both, but
87: .de .als .rm .de only changes the new value, not the alias.
88: Found in groffer(1) version 1.19
89: Jan Stary 20 Apr 2019 20:16:54 +0200
90: loc * exist ** algo ** size ** imp *
91:
92: - roff string condition comparisons fail when vars contain quotes:
93: .ds s '
94: .if '\*s'' \&...
95: hard to fix because of the basic architecture (string replacement
96: happens before roff(7) syntax parsing)
97: Found in groffer(1) version 1.19
98: Jan Stary 20 Apr 2019 20:16:54 +0200
99: loc * exist *** algo *** size ** imp *
1.303 schwarze 100:
101: - mandoc replaces all ASCII control characters except tab and line feed
102: with '?' during input. It would be better to replace them with
103: Unicode escapes in preconv_encode() or somewhere in the vicinity,
104: such that the already existing better replacement strings show
105: up in the output. Emulating groff is not desirable: groff replaces
106: 0x00, 0x0b, and 0x0d to 0x1f with the empty string (bad because
107: that's easy to overlook for the document author), 0x01 with '.'
108: (very confusing), and passes through 0x02 to 0x08, 0x0c, and 0x7f
109: raw (bad because that is insecure output). Remember that 0x07 may
110: need special handling because it is sometimes used for certain
111: delimiters, so it may need handling *after* roff.c rather than before.
112: reminded by John Gardner 16 Jun 2020 14:26:28 +1000
1.304 schwarze 113: Actually, more ASCII control characters than just 0x07 may need
114: later handling because they can for example be used in macro names.
115: So they may need handling after roff(7) processing.
116: pointed out by John Gardner 23 Jun 2020 18:28:08 +1000
1.305 schwarze 117: more info from John Gardner 29 Jun 2020 19:54:04 +1000
1.303 schwarze 118: loc ** exist ** algo ** size ** imp *
1.203 schwarze 119:
1.79 schwarze 120: --- missing mdoc features ----------------------------------------------
1.18 schwarze 121:
1.298 schwarze 122: - .Sh and .Ss should be parsed and partially callable, see groff_mdoc(7)
123: reed at reedmedia dot net Sat, 21 Dec 2019 17:13:07 -0600
124: loc ** exist ** algo ** size ** imp *
125:
1.1 kristaps 126: - .Bl -column .Xo support is missing
127: ultimate goal:
128: restore .Xr and .Dv to
129: lib/libc/compat-43/sigvec.3
130: lib/libc/gen/signal.3
131: lib/libc/sys/sigaction.2
1.184 schwarze 132: loc * exist *** algo *** size * imp **
1.1 kristaps 133:
1.28 schwarze 134: - edge case: decide how to deal with blk_full bad nesting, e.g.
135: .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
136: from jmc@ Wed, 14 Jul 2010 18:10:32 +0100
1.184 schwarze 137: loc * exist *** algo *** size ** imp **
1.174 schwarze 138:
1.82 schwarze 139: - .Bd -filled should not be the same as .Bd -ragged, but align both
140: the left and right margin. In groff, it is implemented in terms
141: of .ad b, which we don't have either. Found in cksum(1).
1.184 schwarze 142: loc *** exist *** algo ** size ** imp ** (parser reorg would help)
1.22 schwarze 143:
1.10 kristaps 144: - implement blank `Bl -column', such as
145: .Bl -column
146: .It foo Ta bar
147: .El
1.184 schwarze 148: loc * exist *** algo *** size * imp *
1.11 kristaps 149:
150: - explicitly disallow nested `Bl -column', which would clobber internal
151: flags defined for struct mdoc_macro
1.184 schwarze 152: loc * exist * algo * size * imp **
1.102 schwarze 153:
154: - In .Bl -column .It, the end of the line probably has to be regarded
155: as an implicit .Ta, if there could be one, see the following mildly
156: ugly code from login.conf(5):
157: .Bl -column minpasswordlen program xetcxmotd
158: .It path Ta path Ta value of Dv _PATH_DEFPATH
159: .br
160: Default search path.
161: reported by Michal Mazurek <akfaew at jasminek dot net>
162: via jmc@ Thu, 7 Apr 2011 16:00:53 +0059
1.184 schwarze 163: loc * exist *** algo ** size * imp **
1.42 schwarze 164:
165: - inside `.Bl -column' phrases, punctuation is handled like normal
166: text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
167:
168: - inside `.Bl -column' phrases, TERMP_IGNDELIM handling by `Pf'
169: is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
170: but should give "ab ."
1.12 kristaps 171:
1.20 kristaps 172: - prohibit `Nm' from having non-text HEAD children
173: (e.g., NetBSD mDNSShared/dns-sd.1)
174: (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
1.109 schwarze 175:
1.174 schwarze 176: - support translated section names
177: e.g. x11/scrotwm scrotwm_es.1:21:2: error: NAME section must be first
178: that one uses NOMBRE because it is spanish...
179: deraadt tends to think that section-dependent macro behaviour
180: is a bad idea in the first place, so this may be irrelevant
1.184 schwarze 181: loc ** exist ** algo ** size * imp **
1.174 schwarze 182:
1.109 schwarze 183: - When there is free text in the SYNOPSIS and that free text contains
184: the .Nm macro, groff somehow understands to treat the .Nm as an in-line
185: macro, while mandoc treats it as a block macro and breaks the line.
186: No idea how the logic for distinguishing in-line and block instances
187: should be, needs investigation.
188: uqs@ Thu, 2 Jun 2011 11:03:51 +0200
189: uqs@ Thu, 2 Jun 2011 11:33:35 +0200
1.184 schwarze 190: loc * exist ** algo *** size * imp **
1.57 kristaps 191:
1.252 schwarze 192: --- missing man features -----------------------------------------------
1.258 schwarze 193:
1.252 schwarze 194: - groff_www(7) .MTO and .URL
195: These macros were used by the GNU grep(1) man page.
1.258 schwarze 196: The groff_www(7) manual page itself uses them, too.
1.252 schwarze 197: We should probably *not* add them to mandoc.
198: Just mentioning this here to keep track of the abuse.
199: Laura Morales <lauretas at mail dot com> 20 Apr 2018 07:33:02 +0200
200: loc ** exist * algo * size ** imp *
201:
1.79 schwarze 202: --- missing tbl features -----------------------------------------------
203:
1.255 schwarze 204: - vertical centering in cells vertically spanned with ^
205: pali dot rohar at gmail dot com 16 Jul 2018 13:03:35 +0200
206: loc * exist *** algo *** size ** imp *
207:
1.208 schwarze 208: - support mdoc(7) and man(7) macros inside tbl(7) code;
209: probably requires the parser reorg and letting tbl(7)
210: use roff_node such that macro sets can mix;
1.233 schwarze 211: informed by bapt@ that FreeBSD needs this: 3 Jan 2015 23:32:23 +0100
1.208 schwarze 212: loc *** exist ** algo *** size ** imp ***
213:
1.171 schwarze 214: - look at the POSIX manuals in the books/man-pages-posix port,
1.283 schwarze 215: they use some unsupported tbl(7) features, mostly macros in tbl(7).
1.184 schwarze 216: loc * exist ** algo ** size ** imp ***
1.171 schwarze 217:
1.230 schwarze 218: - look what Joerg Schilling manual pages use
219: Thu, 19 Mar 2015 18:31:48 +0100
1.255 schwarze 220:
1.182 schwarze 221: --- missing eqn features -----------------------------------------------
1.209 schwarze 222:
223: - In a matrix, break the output line after each matrix line.
1.287 schwarze 224: Found in the discussion at CDBUG 2015. Suggested by Avi Weinstock.
225: This may not be the ideal solution after all: eqn(7) matrices
226: are lists of columns, so Avi's proposal would show each *column*
227: on its own *line*, which is likely to cause confusion.
228: A better solution, but much harder to implement, would be to
229: actually show the coordinates of column vectors on different
230: terminal output lines, using the clumnated output facilities
231: developed for .Bl -tag, .Bl -column, and also used for tbl(7).
232: loc * exist * algo ** size ** imp **
1.182 schwarze 233:
234: - The "size" keyword is parsed, but ignored by the formatter.
1.184 schwarze 235: loc * exist * algo * size * imp *
1.182 schwarze 236:
237: - The spacing characters `~', `^', and tab are currently ignored,
238: see User's Guide (Second Edition) page 2 section 4.
1.184 schwarze 239: loc * exist * algo ** size * imp **
1.182 schwarze 240:
241: - Mark and lineup are parsed and ignored,
242: see User's Guide (Second Edition) page 5 section 15.
1.184 schwarze 243: loc ** exist ** algo ** size ** imp **
1.238 schwarze 244:
245: - GNU eqn converts some operators to special characters, for example,
246: input HYPHEN-MINUS becomes output \(mi, unless it is part of a
247: quoted word. mandoc(1) only does this when the operator is
248: surrounded by blanks, not when it is part of an unquoted word.
249: Also, check whether there are more such cases (e.g., +?).
250: reported by bentley@ 20 Jun 2017 02:04:29 -0600
1.252 schwarze 251: loc * exist ** algo ** size * imp *
1.182 schwarze 252:
1.239 schwarze 253: - Primes, opprime, and '
254: bentley@ Thu, 13 Jul 2017 23:14:20 -0600
255:
1.79 schwarze 256: --- missing misc features ----------------------------------------------
1.301 schwarze 257:
258: - -T man does not handle eqn(7) and tbl(7)
259: Stephen Gregoratto 16 Feb 2020 01:28:07 +1100
260: loc ** exist ** algo ** size *** imp **
1.255 schwarze 261:
262: - man -ks 1,8 route; kn@ Jul 13, 2018 orally
1.159 schwarze 263:
264: - italic correction (\/) in PostScript mode
265: Werner LEMBERG on groff at gnu dot org Sun, 10 Nov 2013 12:47:46
1.184 schwarze 266: loc ** exist ** algo * size * imp *
1.153 schwarze 267:
1.210 schwarze 268: - change the default PAGER to more -Es and use the pager
269: even for apropos title line output; req by bapt@
270: loc * exist * algo * size * imp ***
1.171 schwarze 271:
1.79 schwarze 272: - clean up escape sequence handling, creating three classes:
273: (1) fully implemented, or parsed and ignored without loss of content
274: (2) unimplemented, potentially causing loss of content
275: or serious mangling of formatting (e.g. \n) -> ERROR
276: see textproc/mgdiff(1) for nice examples
277: (3) undefined, just output the character -> perhaps WARNING
1.184 schwarze 278: loc *** exist ** algo ** size ** imp *** (parser reorg helps)
1.83 schwarze 279:
1.174 schwarze 280: - kettenis wants base roff, ms, and me Fri, 1 Jan 2010 22:13:15 +0100 (CET)
1.184 schwarze 281: loc ** exist ** algo ** size *** imp *
1.174 schwarze 282:
283: --- compatibility checks -----------------------------------------------
1.196 schwarze 284:
1.174 schwarze 285: - is .Bk implemented correctly in modern groff?
286: sobrado@ Tue, 19 Apr 2011 22:12:55 +0200
287:
1.175 schwarze 288: - compare output to Heirloom roff, Solaris roff, and
289: http://repo.or.cz/w/neatroff.git http://litcave.rudi.ir/
1.178 schwarze 290:
291: - look at AT&T DWB http://www2.research.att.com/sw/download
292: Carsten Kunze <carsten dot kunze at arcor dot de> has patches
293: Mon, 4 Aug 2014 17:01:28 +0200
1.230 schwarze 294: ported version: https://github.com/n-t-roff/DWB3.3
295: Carsten Kunze Wed, 22 Apr 2015 11:21:43 +0200
1.174 schwarze 296:
1.79 schwarze 297: - look at pages generated from reStructeredText, e.g. devel/mercurial hg(1)
298: These are a weird mixture of man(7) and custom autogenerated low-level
299: roff stuff. Figure out to what extent we can cope.
1.80 schwarze 300: For details, see http://docutils.sourceforge.net/rst.html
1.79 schwarze 301: noted by stsp@ Sat, 24 Apr 2010 09:17:55 +0200
302: reminded by nicm@ Mon, 3 May 2010 09:52:41 +0100
1.160 schwarze 303:
1.174 schwarze 304: - look at pages generated from ronn(1) github.com/rtomayko/ronn
305: (based on markdown)
306:
1.160 schwarze 307: - look at pages generated from Texinfo source by yat2m, e.g. security/gnupg
308: First impression is not that bad.
1.172 schwarze 309:
310: - look at pages generated by pandoc; see
311: https://github.com/jgm/pandoc/blob/master/src/Text/Pandoc/Writers/Man.hs
312: porting planned by kili@ Thu, 19 Jun 2014 19:46:28 +0200
1.71 schwarze 313:
314: - check compatibility with Plan9:
315: http://swtch.com/usr/local/plan9/tmac/tmac.an
316: http://swtch.com/plan9port/man/man7/man.html
317: "Anthony J. Bentley" <anthonyjbentley@gmail.com> 28 Dec 2010 21:58:40 -0700
1.63 schwarze 318:
1.207 schwarze 319: - check compatibility with COHERENT troff:
320: http://www.nesssoftware.com/home/mwc/source.php
321:
1.174 schwarze 322: - check compatibility with the man(7) formatter
323: https://raw.githubusercontent.com/rofl0r/hardcore-utils/master/man.c
324:
1.186 schwarze 325: - check compatibility with
326: http://ikiwiki.info/plugins/contrib/mandoc/
327: https://github.com/schmonz/ikiwiki/compare/mandoc
328: Amitai Schlair Mon, 19 May 2014 14:05:53 -0400
1.295 schwarze 329:
330: - check compatibility with
331: https://git.sr.ht/~sircmpwn/scdoc
1.186 schwarze 332:
1.230 schwarze 333: - check features of the Slackware man.conf(5) format
334: Carsten Kunze Wed, 11 Mar 2015 17:57:24 +0100
335:
1.1 kristaps 336: ************************************************************************
337: * formatting issues: ugly output
338: ************************************************************************
1.87 kristaps 339:
1.195 schwarze 340: - revisit empty in-line macros
341: look at the difference between "Em x Em ." and "Sq x Em ."
342: Carsten Kunze Fri, 12 Dec 2014 00:15:41 +0100
343: loc *** exist *** algo *** size * imp **
344:
345: - a column list with blank `Ta' cells triggers a spurious
1.87 kristaps 346: start-with-whitespace printing of a newline
1.195 schwarze 347:
348: - In .Bl -column, .It a<tab>"b<tab>c"
349: shows the quotes in groff, but not in mandoc
350: loc * exist *** algo ** size * imp **
1.1 kristaps 351:
1.39 schwarze 352: - In .Bl -column,
353: .It Em Authentication<tab>Key Length
354: ought to render "Key Length" with emphasis, too,
355: see OpenBSD iked.conf(5).
1.123 schwarze 356: reported again Nicolas Joly via wiz@ Wed, 12 Oct 2011 00:20:00 +0200
1.184 schwarze 357: loc * exist *** algo *** size ** imp ***
1.39 schwarze 358:
1.1 kristaps 359: - empty phrases in .Bl column produce too few blanks
360: try e.g. .Bl -column It Ta Ta
361: reported by millert Fri, 02 Apr 2010 16:13:46 -0400
1.184 schwarze 362: loc * exist *** algo *** size * imp **
1.48 schwarze 363:
1.83 schwarze 364: - .%T can have trailing punctuation. Currently, it puts the trailing
365: punctuation into a trailing MDOC_TEXT element inside its own scope.
366: That element should rather be outside its scope, such that the
367: punctuation does not get underlines. This is not trivial to
368: implement because .%T then needs some features of in_line_eoln() -
369: slurp all arguments into one single text element - and one feature
370: of in_line() - put trailing punctuation out of scope.
371: Found in mount_nfs(8) and exports(5), search for "Appendix".
1.184 schwarze 372: loc ** exist ** algo *** size * imp **
1.83 schwarze 373:
1.147 schwarze 374: - Trailing punctuation after .%T triggers EOS spacing, at least
375: outside .Rs (eek!). Simply setting ARGSFL_DELIM for .%T is not
376: the right solution, it sends mandoc into an endless loop.
377: reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
1.184 schwarze 378: loc * exist ** algo ** size * imp **
1.147 schwarze 379:
1.174 schwarze 380: - global variables in the SYNOPSIS of section 3 pages
381: .Vt vs .Vt/.Va vs .Ft/.Va vs .Ft/.Fa ...
382: from kristaps@ Tue, 08 Jun 2010 11:13:32 +0200
1.239 schwarze 383:
384: - implicit whitespace around inline equations
385: example code: where '$times$' denotes matrix multiplication
386: must not have an HTML line break, nor a blank, before <math>
387: partial solution: html.c {"math", HTML_NLINSIDE | HTML_INDENT},
388: bentley@ Thu, 13 Jul 2017 19:00:59 -0600
1.174 schwarze 389:
1.48 schwarze 390: - in enclosures, mandoc sometimes fancies a bogus end of sentence
391: reminded by jmc@ Thu, 23 Sep 2010 18:13:39 +0059
1.184 schwarze 392: loc * exist ** algo *** size * imp ***
1.197 schwarze 393:
394: - a line starting with "\fB something" counts as starting with whitespace
395: and triggers a line break; found in audio/normalize-mp3(1)
1.287 schwarze 396: This will become easier once escape sequences are represented
397: by syntax tree nodes.
1.197 schwarze 398: loc ** exist * algo ** size * imp **
1.149 schwarze 399:
400: - formatting /usr/local/man/man1/latex2man.1 with groff and mandoc
401: reveals lots of bugs both in groff and mandoc...
402: reported by bentley@ Wed, 22 May 2013 23:49:30 -0600
1.171 schwarze 403:
1.230 schwarze 404: --- PostScript and PDF issues ------------------------------------------
1.171 schwarze 405:
406: - PDF output doesn't use a monospaced font for .Bd -literal
407: Example: "mandoc -Tpdf afterboot.8 > output.pdf && pdfviewer output.pdf".
408: Search the text "Routing tables".
409: Also check what PostScript mode does when fixing this.
410: reported by juanfra@ Wed, 04 Jun 2014 21:44:58 +0200
1.186 schwarze 411: instructions from juanfra@ Wed, 11 Jun 2014 02:21:01 +0200
412: add a new <</Type /Font>> block to the PDF files with /BaseFont /Courier
413: and change the /Name from /F0 to the new font (/F5 (?)).
1.230 schwarze 414: re-reported by tb@ Mon, 16 Mar 2015 16:47:21 +0100
1.186 schwarze 415: loc * exist ** algo ** size * imp **
1.173 schwarze 416:
417: --- HTML issues --------------------------------------------------------
1.297 schwarze 418:
419: - get rid of the last handful of style= attributes such that
420: Content-Security-Policy: can be enabled without unsafe-inline
421: suggested by bentley@ Nov 10, 2019 at 06:02:49AM -0700
422: loc * exist * algo * size * imp **
1.214 schwarze 423:
424: - .Bf at the beginning of a paragraph inserts a bogus 1ex horizontal
425: space, see for example random(3). Introduced in
426: http://mdocml.bsd.lv/cgi-bin/cvsweb/mdoc_html.c.diff?r1=1.91&r2=1.92
427: reported by deraadt@ Mon, 28 Sep 2015 20:14:13 -0600 (MDT)
428: loc ** exist ** algo ** size * imp *
1.180 schwarze 429:
1.187 schwarze 430: - jsg on icb, Nov 3, 2014:
431: try to guess Xr in man(7) for hyperlinking
1.226 schwarze 432: and render them with <a class="Xr" href=...>
433: https://github.com/Debian/debiman/issues/15
434: loc * exist * algo ** size ** imp **
1.296 schwarze 435:
436: - space characters can end up in href= attributes, for example coming
437: from the first .Xr argument (where they make no sense, but still);
438: does this affect other characters, other source macros...?
439: Jackson Pauls 29 Aug 2017 16:56:27 +0100
1.187 schwarze 440:
1.180 schwarze 441: - The tables used to render the three-part page headers actually force
442: the width of the <body> to the max-width given for <html>.
443: Not yet sure how to fix that...
444: Observed by an Anonymous Coward on undeadly.org:
445: http://undeadly.org/cgi?action=article&sid=20140925064244&pid=1
1.184 schwarze 446: loc * exist * algo ** size * imp ***
1.206 schwarze 447:
448: - generate <img> tags in HTML
449: idea from florian@ Tue, 7 Apr 2015 00:26:28 +0000
450: may be possible to implement with .Lk img://something.png alt_text
1.174 schwarze 451:
1.173 schwarze 452: - check https://github.com/trentm/mdocml
1.35 kristaps 453:
1.1 kristaps 454: ************************************************************************
1.104 kristaps 455: * formatting issues: gratuitous differences
1.1 kristaps 456: ************************************************************************
1.187 schwarze 457:
458: - .Fn reopens a new scope after punctuation in mandoc,
459: but closes its scope for good in groff.
460: Do we want to change mandoc or groff?
461: Steffen Nurpmeso Sat, 08 Nov 2014 13:34:59 +0100
462: loc * exist ** algo ** size * imp **
1.230 schwarze 463:
1.174 schwarze 464: - In .Bl -enum -width 0n, groff continues one the same line after
465: the number, mandoc breaks the line.
466: mail to kristaps@ Mon, 20 Jul 2009 02:21:39 +0200
1.184 schwarze 467: loc * exist ** algo ** size * imp **
1.174 schwarze 468:
1.103 schwarze 469: - .Pp between two .It in .Bl -column should produce one,
470: not two blank lines, see e.g. login.conf(5).
471: reported by jmc@ Sun, 17 Apr 2011 14:04:58 +0059
1.129 schwarze 472: reported again by sthen@ Wed, 18 Jan 2012 02:09:39 +0000 (UTC)
1.184 schwarze 473: loc * exist *** algo ** size * imp **
1.39 schwarze 474:
1.83 schwarze 475: - If the *first* line after .It is .Pp, break the line right after
476: the tag, do not pad with space characters before breaking.
477: See the description of the a, c, and i commands in sed(1).
1.184 schwarze 478: loc * exist ** algo ** size * imp **
1.83 schwarze 479:
480: - If the first line after .It is .D1, do not assert a blank line
481: in between, see for example tmux(1).
482: reported by nicm@ 13 Jan 2011 00:18:57 +0000
1.184 schwarze 483: loc * exist ** algo ** size * imp **
1.147 schwarze 484:
485: - Trailing punctuation after .It should trigger EOS spacing.
486: reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
487: Probably, this should be fixed somewhere in termp_it_pre(), not sure.
1.184 schwarze 488: loc * exist ** algo ** size * imp **
1.83 schwarze 489:
490: - When the -width string contains macros, the macros must be rendered
491: before measuring the width, for example
492: .Bl -tag -width ".Dv message"
493: in magic(5), located in src/usr.bin/file, is the same
494: as -width 7n, not -width 11n.
1.129 schwarze 495: The same applies to .Bl -column column widths;
496: reported again by Nicolas Joly Thu, 1 Mar 2012 13:41:26 +0100 via wiz@ 5 Mar
1.157 schwarze 497: reported again by Franco Fichtner Fri, 27 Sep 2013 21:02:28 +0200
1.234 schwarze 498: reported again by Bruce Evans Fri, 17 Feb 2017 21:22:44 +0100 via bapt@
1.184 schwarze 499: loc *** exist *** algo *** size ** imp ***
1.157 schwarze 500: An easy partial fix would be to just skip the first word if it starts
501: with a dot, including any following white space, when measuring.
1.184 schwarze 502: loc * exist * algo * size * imp ***
1.83 schwarze 503:
1.56 schwarze 504: - The \& zero-width character counts as output.
505: That is, when it is alone on a line between two .Pp,
506: we want three blank lines, not two as in mandoc.
1.184 schwarze 507: loc ** exist ** algo ** size * imp **
1.83 schwarze 508:
1.205 schwarze 509: - Sequences of multiple man(7) paragraphs (.PP, .IP) interspersed
510: with .ps and .nf/.fi produce execessive blank lines, see libJudy
1.207 schwarze 511: and graphics/dcmtk. The parser reorg may help with this.
1.83 schwarze 512:
513: - trailing whitespace must be ignored even when followed by a font escape,
1.198 schwarze 514: see for example
1.83 schwarze 515: makes
516: \fBdig \fR
517: operate in batch mode
518: in dig(1).
1.184 schwarze 519: loc ** exist ** algo ** size * imp **
1.166 schwarze 520:
521: ************************************************************************
522: * warning issues
523: ************************************************************************
1.251 schwarze 524:
525: - warn about duplicate .Sh/.Ss heads
526: gre(4): Rename duplicate sections 20 Apr 2018 15:27:33 +0200
1.252 schwarze 527: loc * exist * algo * size * imp **
1.216 schwarze 528:
1.245 schwarze 529: - style message about macros inside .Bd -literal and .Dl, in particular
530: font changing macros like .Cm, .Ar, .Fa (from the mdoclint TODO)
531:
1.246 schwarze 532: - style message about mismatches between the section number in the
533: file name (if it is known) and the section number in .Dt
534: (from the mdoclint TODO)
535:
1.245 schwarze 536: - style message about NULL without .Dv (from the mdoclint TODO)
537:
538: - style message about error constants without .Er (from the mdoclint TODO)
539:
1.211 schwarze 540: - warn when .Sh or .Ss contain other macros
541: Steffen Nurpmeso, savannah.gnu.org/bugs/index.php?45034
1.210 schwarze 542: loc * exist * algo * size * imp **
1.188 schwarze 543:
1.245 schwarze 544: - style message about violations of the convention
1.246 schwarze 545: .An name Aq Mt localpart@domain in AUTHORS (from the mdoclint TODO)
1.245 schwarze 546:
1.188 schwarze 547: - warn about attempts to call non-callable macros
548: Steffen Nurpmeso Tue, 11 Nov 2014 22:55:16 +0100
549: Note that formatting is inconsistent in groff.
550: .Fn Po prints "Po()", .Ar Sh prints "file ..." and no "Sh".
551: Relatively hard because the relevant code is scattered
552: all over mdoc_macro.c and all subtly different.
553: loc ** exist ** algo ** size ** imp **
1.245 schwarze 554:
1.246 schwarze 555: - warn about punctuation - e.g. ',' and ';' - at the beginning
556: of a text line, if it is likely intended to follow the preceding
557: output without intervening whitespace, in particular after a
558: macro line (from the mdoclint TODO)
1.257 schwarze 559:
560: - makewhatis -p complains about language subdirectories:
561: /usr/local/man//ru: Unknown directory part
562:
1.174 schwarze 563:
564: ************************************************************************
565: * documentation issues
566: ************************************************************************
567:
568: - mark macros as: page structure domain, manual domain, general text domain
569: is this useful?
570:
571: - mention /usr/share/misc/mdoc.template in mdoc(7)?
1.185 schwarze 572:
573: - Is all the content from http://www.std.com/obi/BSD/doc/usd/28.tbl/tbl
574: covered in tbl(7)?
1.1 kristaps 575:
1.9 kristaps 576: ************************************************************************
577: * performance issues
578: ************************************************************************
579:
1.37 kristaps 580: - the PDF file is HUGE: this can be reduced by using relative offsets
1.115 kristaps 581:
1.23 kristaps 582: ************************************************************************
583: * structural issues
584: ************************************************************************
1.221 schwarze 585:
586: - POSIX says in the documentation of sysconf(3) that PATH_MAX
587: is allowed to be so large that it is a bad idea to use it
588: for sizing static buffers. So use dynamic buffers throughout.
589: See the file test-PATH_MAX.c for details.
590: Found by Aaron M. Ucko in the GNU Hurd via Bdale Garbee,
591: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829624
1.67 schwarze 592:
1.241 schwarze 593: - Is it possible to further simplify ENDBODY_SPACE?
594:
1.67 schwarze 595: - Find better ways to prevent endless loops
596: in roff(7) macro and string expansion.
1.241 schwarze 597:
598: - make buffers for parsing functions const
599: christos@ via wiz@ Fri, 18 Dec 2015 17:10:01 +0100
1.186 schwarze 600:
601: - struct mparse refactoring
602: Steffen Nurpmeso Thu, 04 Sep 2014 12:50:00 +0200
1.170 schwarze 603:
1.179 kristaps 604: ************************************************************************
605: * CGI issues
606: ************************************************************************
607:
1.302 schwarze 608: - Inspect httpd(8) logs on man.openbsd.org and consider
609: whether logging can be improved, where bad syntax comes from,
610: and what needs to be done to get rid of COMPAT_OLDURI.
1.179 kristaps 611: - Enable HTTP compression by detecting gzip encoding and filtering
612: output through libz.
1.256 schwarze 613: - Privilege separation (see OpenSSH).
1.179 kristaps 614: - Enable caching support via HTTP 304 and If-Modified-Since.
1.181 kristaps 615:
1.192 schwarze 616: ************************************************************************
617: * to improve in the groff_mdoc(7) macros
618: ************************************************************************
1.298 schwarze 619:
620: - delete OS release verification from .Dx, .Fx, .Nx, .Ox etc.
621: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629161
622: also Branden Robinson 18 Dec 2019 00:59:52 +1100
1.299 schwarze 623:
624: - Can the distinction between .Vt and .Va be made stricter,
625: recommending .Vt extern char * Ns Va optarg ; ?
626: What about the block macro properties of .Vt in the SYNOPSIS?
627: zeurkous 25 Dec 2019 08:48:36 +0100
1.252 schwarze 628:
629: - .Cd # arch1, arch2 in section 4 pages:
630: find better way to indicate multiple architectures, maybe:
631: allow .Dt vgafb 4 "macppc sparc64"
632: already shown as "Device Drivers Manual (macppc sparc64)"
633: for apropos, make that "vgafb(4) - macppc # sparc64" instead of "- all"
634: groff can be made to show multiple arches, too, but it is
635: tedious to do the string parsing in roff code...
636: jmc@ 23 Apr 2018 07:24:52 +0100 [man for vgafb(4)...]
637: loc ** exist ** algo * size * imp ***
1.192 schwarze 638:
639: - use uname(1) to set doc-default-operating-system at install time
640: tobimensch Mon, 1 Dec 2014 00:25:07 +0100
1.236 schwarze 641:
642: - apostrophe (39), circumflex (94), grave (96), tilde (126)
643: in manuals: \(aq, \(ha, \`, \(ti
644: Re: [Groff] ASCII Minus Sign in man Pages.
645: bentley@ 26 Apr 2017 10:02:06 -0600
646: Do we need to fix existing manuals?
647: Do we need to fix the definition of the mdoc(7) language?
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