Annotation of mandoc/TODO, Revision 1.106
1.1 kristaps 1: ************************************************************************
1.37 kristaps 2: * Official mandoc TODO.
1.106 ! kristaps 3: * $Id: TODO,v 1.105 2011/05/18 09:45:21 kristaps Exp $
1.27 kristaps 4: ************************************************************************
5:
6: ************************************************************************
1.61 schwarze 7: * parser bugs
8: ************************************************************************
9:
1.81 schwarze 10: - .TP before .SH is still FATAL in man(7)
11: reported by brad@ Sat, 15 Jan 2011 15:54:54 -0500
1.83 schwarze 12:
1.61 schwarze 13: - the roff parser doesn't tolerate additional characters between
14: a macro and the \} terminating a conditional block, e.g.
15: .if n \{
16: .br \}
17: reported by ulrich spoerlein Tue, 19 Oct 2010 20:39:50 +0200
1.96 schwarze 18:
1.74 schwarze 19: ************************************************************************
20: * formatter bugs
21: ************************************************************************
1.63 schwarze 22:
1.101 schwarze 23: - tbl(7): Horizontal and vertical lines are formatted badly:
24: With the box option, there is too much white space at the end of cells.
25: Horizontal lines from "=" lines are a bit too long.
26: yuri dot pankov at gmail dot com Thu, 14 Apr 2011 05:45:26 +0400
27:
1.61 schwarze 28: ************************************************************************
1.1 kristaps 29: * missing features
30: ************************************************************************
1.70 kristaps 31:
1.79 schwarze 32: --- missing roff features ----------------------------------------------
33:
1.82 schwarze 34: - .ad (adjust margins)
35: .ad l -- adjust left margin only (flush left)
36: .ad r -- adjust right margin only (flush right)
37: .ad c -- center text on line
38: .ad b -- adjust both margins (alias: .ad n)
39: .na -- temporarily disable adjustment without changing the mode
40: .ad -- re-enable adjustment without changing the mode
41: Adjustment mode is ignored while in no-fill mode (.nf).
42:
1.81 schwarze 43: - .it (line traps) occur in mysql(1), yasm_arch(7)
44: generated by DocBook XSL Stylesheets v1.71.1 <http://docbook.sf.net/>
45: reported by brad@ Sat, 15 Jan 2011 15:48:18 -0500
46:
1.80 schwarze 47: - .ns (no-space mode) occurs in xine-config(1)
48: reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
1.61 schwarze 49:
1.80 schwarze 50: - xloadimage(1) wants .ti (temporary indent), rep by naddy@
1.81 schwarze 51:
52: - .ta (tab settings) occurs in ircbug(1) and probably gnats(1)
53: reported by brad@ Sat, 15 Jan 2011 15:50:51 -0500
1.75 schwarze 54:
1.80 schwarze 55: - pod2man expects `tr' to be implemented for \*(-- to work
1.79 schwarze 56:
1.83 schwarze 57: - \c (interrupted text) occurs in chat(8)
1.98 schwarze 58:
1.79 schwarze 59: --- missing mdoc features ----------------------------------------------
60:
1.18 schwarze 61: - fix bad block nesting involving multiple identical explicit blocks
62: see the OpenBSD mdoc_macro.c 1.47 commit message
63:
1.1 kristaps 64: - .Bl -column .Xo support is missing
65: ultimate goal:
66: restore .Xr and .Dv to
67: lib/libc/compat-43/sigvec.3
68: lib/libc/gen/signal.3
69: lib/libc/sys/sigaction.2
70:
1.28 schwarze 71: - edge case: decide how to deal with blk_full bad nesting, e.g.
72: .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
73: from jmc@ Wed, 14 Jul 2010 18:10:32 +0100
74:
1.74 schwarze 75: - \\ is now implemented correctly
76: * when defining strings and macros using .ds and .de
77: * when parsing roff(7) and man(7) macro arguments
78: It does not yet work in mdoc(7) macro arguments
79: because libmdoc does not yet use mandoc_getarg().
80: Also check what happens in plain text, it must be identical to \e.
1.82 schwarze 81:
82: - .Bd -filled should not be the same as .Bd -ragged, but align both
83: the left and right margin. In groff, it is implemented in terms
84: of .ad b, which we don't have either. Found in cksum(1).
1.22 schwarze 85:
1.10 kristaps 86: - implement blank `Bl -column', such as
87: .Bl -column
88: .It foo Ta bar
89: .El
1.11 kristaps 90:
91: - explicitly disallow nested `Bl -column', which would clobber internal
92: flags defined for struct mdoc_macro
1.102 schwarze 93:
94: - In .Bl -column .It, the end of the line probably has to be regarded
95: as an implicit .Ta, if there could be one, see the following mildly
96: ugly code from login.conf(5):
97: .Bl -column minpasswordlen program xetcxmotd
98: .It path Ta path Ta value of Dv _PATH_DEFPATH
99: .br
100: Default search path.
101: reported by Michal Mazurek <akfaew at jasminek dot net>
102: via jmc@ Thu, 7 Apr 2011 16:00:53 +0059
1.42 schwarze 103:
104: - inside `.Bl -column' phrases, punctuation is handled like normal
105: text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
106:
107: - inside `.Bl -column' phrases, TERMP_IGNDELIM handling by `Pf'
108: is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
109: but should give "ab ."
1.12 kristaps 110:
111: - set a meaningful default if no `Bl' list type is assigned
1.13 kristaps 112:
113: - have a blank `It' head for `Bl -tag' not puke
1.20 kristaps 114:
115: - prohibit `Nm' from having non-text HEAD children
116: (e.g., NetBSD mDNSShared/dns-sd.1)
117: (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
1.57 kristaps 118:
1.79 schwarze 119: --- missing man features -----------------------------------------------
1.101 schwarze 120:
121: - .RS/.RE can be nested, see e.g. the x11/fluxbox manuals
122: noticed by dcoppa@ Wed, Apr 13, 2011 at 04:58:14PM +0200:
1.79 schwarze 123:
1.80 schwarze 124: - groff an-ext.tmac macros (.UR, .UE) occur in xine(5)
125: reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
126:
1.79 schwarze 127: --- missing tbl features -----------------------------------------------
128:
129: - implement basic non-parametric .de to support e.g. sox(1)
130: reported by naddy@ Sat, 16 Oct 2010 23:51:57 +0200
131: *** sox(1) still doesn't work, tbl(1) errors need investigation
1.105 kristaps 132:
133: - allow standalone `.' to be interpreted as an end-of-layout
134: delimiter instead of being thrown away as a no-op roff line
135: reported by Yuri Pankov, Wed 18 May 2011 11:34:59 CEST
1.79 schwarze 136:
137: --- missing misc features ----------------------------------------------
138:
139: - clean up escape sequence handling, creating three classes:
140: (1) fully implemented, or parsed and ignored without loss of content
141: (2) unimplemented, potentially causing loss of content
142: or serious mangling of formatting (e.g. \n) -> ERROR
143: see textproc/mgdiff(1) for nice examples
144: (3) undefined, just output the character -> perhaps WARNING
145:
1.83 schwarze 146: - The \t escape sequence is the same as a literal tab, see for example
147: the ASCII table in hexdump(1) where
148: .Bl -column \&000_nu \&001_so \&002_st \&003_et \&004_eo
149: .It \&000\ nul\t001\ soh\t002\ stx\t003\ etx\t004\ eot\t005\ enq
150: produces
151: 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq
152: and the example in oldrdist(1)
153:
1.79 schwarze 154: - look at pages generated from reStructeredText, e.g. devel/mercurial hg(1)
155: These are a weird mixture of man(7) and custom autogenerated low-level
156: roff stuff. Figure out to what extent we can cope.
1.80 schwarze 157: For details, see http://docutils.sourceforge.net/rst.html
1.79 schwarze 158: noted by stsp@ Sat, 24 Apr 2010 09:17:55 +0200
159: reminded by nicm@ Mon, 3 May 2010 09:52:41 +0100
1.71 schwarze 160:
161: - check compatibility with Plan9:
162: http://swtch.com/usr/local/plan9/tmac/tmac.an
163: http://swtch.com/plan9port/man/man7/man.html
164: "Anthony J. Bentley" <anthonyjbentley@gmail.com> 28 Dec 2010 21:58:40 -0700
1.63 schwarze 165:
1.1 kristaps 166: ************************************************************************
167: * formatting issues: ugly output
168: ************************************************************************
1.87 kristaps 169:
170: - a column list with blank `Ta' cells triggers a spurrious
171: start-with-whitespace printing of a newline
1.33 schwarze 172:
1.67 schwarze 173: - double quotes inside double quotes are escaped by doubling them
1.74 schwarze 174: implement this in mdoc(7), too
175: so far, we only have it in roff(7) and man(7)
1.67 schwarze 176: reminded by millert@ Thu, 09 Dec 2010 17:29:52 -0500
177:
1.28 schwarze 178: - perl(1) SYNOPSIS looks bad; reported by deraadt@
1.29 kristaps 179: 1) man(7) seems to need SYNOPSIS .Nm blocks, too
1.1 kristaps 180:
1.39 schwarze 181: - In .Bl -column,
182: .It Em Authentication<tab>Key Length
183: ought to render "Key Length" with emphasis, too,
184: see OpenBSD iked.conf(5).
185:
1.1 kristaps 186: - empty phrases in .Bl column produce too few blanks
187: try e.g. .Bl -column It Ta Ta
188: reported by millert Fri, 02 Apr 2010 16:13:46 -0400
1.48 schwarze 189:
1.83 schwarze 190: - .%T can have trailing punctuation. Currently, it puts the trailing
191: punctuation into a trailing MDOC_TEXT element inside its own scope.
192: That element should rather be outside its scope, such that the
193: punctuation does not get underlines. This is not trivial to
194: implement because .%T then needs some features of in_line_eoln() -
195: slurp all arguments into one single text element - and one feature
196: of in_line() - put trailing punctuation out of scope.
197: Found in mount_nfs(8) and exports(5), search for "Appendix".
198:
1.48 schwarze 199: - in enclosures, mandoc sometimes fancies a bogus end of sentence
200: reminded by jmc@ Thu, 23 Sep 2010 18:13:39 +0059
1.35 kristaps 201:
1.1 kristaps 202: ************************************************************************
1.104 kristaps 203: * formatting issues: gratuitous differences
1.1 kristaps 204: ************************************************************************
1.65 kristaps 205:
206: - .Rv (and probably .Ex) print different text if an `Nm' has been named
207: or not (run a manual without `Nm blah' to see this). I'm not sure
208: that this exists in the wild, but it's still an error.
1.38 schwarze 209:
210: - In .Bl -bullet, the groff bullet is "+\b+\bo\bo", the mandoc bullet
211: is just "o\bo".
212: see for example OpenBSD ksh(1)
213:
214: - The characters "|" and "\*(Ba" should never be bold,
215: not even in the middle of a word, e.g. ".Cm b\*(Bac" in
216: "mknod [-m mode] name b|c major minor"
217: in OpenBSD ksh(1)
218:
219: - A bogus .Pp between two .It must not produce a double blank line,
1.39 schwarze 220: see between -R and -r in OpenBSD rm(1), before "update" in mount(8),
1.83 schwarze 221: or in DIAGNOSTICS in init(8), or before "is always true" in ksh(1).
222: The same happens with .Pp just before .El, see bgpd.conf(5).
1.68 kristaps 223: Also have `It' complain if `Pp' is invoked at certain times (not
224: -compact?).
1.103 schwarze 225:
226: - .Pp between two .It in .Bl -column should produce one,
227: not two blank lines, see e.g. login.conf(5).
228: reported by jmc@ Sun, 17 Apr 2011 14:04:58 +0059
1.39 schwarze 229:
1.83 schwarze 230: - If the *first* line after .It is .Pp, break the line right after
231: the tag, do not pad with space characters before breaking.
232: See the description of the a, c, and i commands in sed(1).
233:
234: - If the first line after .It is .D1, do not assert a blank line
235: in between, see for example tmux(1).
236: reported by nicm@ 13 Jan 2011 00:18:57 +0000
237:
1.39 schwarze 238: - .Nx 1.0a
239: should be "NetBSD 1.0A", not "NetBSD 1.0a",
240: see OpenBSD ccdconfig(8).
1.83 schwarze 241:
1.39 schwarze 242: - In .Bl -tag, if a tag exceeds the right margin and must be continued
243: on the next line, it must be indented by -width, not width+1;
244: see "rule block|pass" in OpenBSD ifconfig(8).
1.56 schwarze 245:
1.83 schwarze 246: - When the -width string contains macros, the macros must be rendered
247: before measuring the width, for example
248: .Bl -tag -width ".Dv message"
249: in magic(5), located in src/usr.bin/file, is the same
250: as -width 7n, not -width 11n.
251:
1.56 schwarze 252: - The \& zero-width character counts as output.
253: That is, when it is alone on a line between two .Pp,
254: we want three blank lines, not two as in mandoc.
1.63 schwarze 255:
256: - When .Fn arguments exceed one output line, all but the first
257: should be indented, see e.g. rpc(3);
258: reported by jmc@ on discuss@ Fri, 29 Oct 2010 13:48:33 +0100
1.83 schwarze 259:
260: - .Ns should work when called at the end of an input line, see
261: the following code in vi(1):
262: .It Xo
263: .Op Ar line
264: .Cm a Ns Op Cm ppend Ns
265: .Op Cm !\&
266: .Xc
267: The input text is appended after the specified line.
268:
1.64 schwarze 269: - Header lines of excessive length:
270: Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c
271: and document it in mdoc(7) and man(7) COMPATIBILITY
272: found while talking to Chris Bennett
1.83 schwarze 273:
274: - In man(7), the sequence
275: .HP
276: one line of regular text
277: .SH
278: should not produce two blank lines before the .SH,
279: see for example named-checkconf(8).
280:
281: - In man(7), the sequence
282: regular text
283: .RS
284: .IP
285: should have a blank line between the text and the beginning of the
286: indented paragraph, see for example sudo(1).
1.98 schwarze 287:
288: - In man(7), the sequence
289: .SH HEADER
290: <blank line>
291: .PP
292: regular text
293: should not produce any blank lines between the header and the text,
294: see for example rsync(1).
295: Reported by naddy@ Mon, 28 Mar 2011 20:45:42 +0200
296:
297: - In man(7), the sequence
298: regular text
299: .PP
300: .RS
301: indented text
302: should produce one blank line between the regular and indented texts,
303: see for example rsync(1), and
304: .RE
305: <blank line>
306: .PP
307: .RS
308: should produce two,not one blank lines.
309: Reported by naddy@ Mon, 28 Mar 2011 20:45:42 +0200
310:
311: - In man(7), the sequence
312: regular text
313: .IP
314: .IP "tag"
315: indented text
316: should produce one, not four blank lines between the regular text
317: and the tag, see for example rsync(1).
318: Likewise,
319: regular text
320: .IP
321: indented text
322: should produce one, not two blank lines in between, and
323: regular text
324: .IP
325: .RS
326: .IP tag
327: indented text
328: should produce one, not three blank lines.
329: Reported by naddy@ Mon, 28 Mar 2011 20:45:42 +0200
1.83 schwarze 330:
331: - At least sometimes, .sp is ignored right after .SH; see named.conf(5).
332:
333: - trailing whitespace must be ignored even when followed by a font escape,
334: see for example
335: makes
336: \fBdig \fR
337: operate in batch mode
338: in dig(1).
1.75 schwarze 339:
340: ************************************************************************
341: * error reporting issues
342: ************************************************************************
1.1 kristaps 343:
1.9 kristaps 344: ************************************************************************
345: * performance issues
346: ************************************************************************
347:
348: Several areas can be cleaned up to make mandoc even faster. These are
349:
350: - improve hashing mechanism for macros (quite important: performance)
351:
352: - improve hashing mechanism for characters (not as important)
1.23 kristaps 353:
1.37 kristaps 354: - the PDF file is HUGE: this can be reduced by using relative offsets
355:
1.23 kristaps 356: ************************************************************************
357: * structural issues
358: ************************************************************************
1.67 schwarze 359:
360: - Find better ways to prevent endless loops
361: in roff(7) macro and string expansion.
1.91 schwarze 362:
1.96 schwarze 363: - Finish cleanup of date handling.
1.91 schwarze 364: Decide which formats should be recognized where.
365: Update both mdoc(7) and man(7) documentation.
366: Triggered by Tim van der Molen Tue, 22 Feb 2011 20:30:45 +0100
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