Changes in version 1.14.5, released on March 10, 2019

--- MAJOR NEW FEATURES ---
* apropos(1): improve POSIX compliance by accepting case-insensitive
extended regular expressions by default
* new -O tag[=term] output option (open a page at the definition of a term)
* tbl(7) -T html: spanning and horizontal and vertical alignment of cells
* tbl(7) -T html: draw lines on the edges of table cells
* tbl(7) -T utf8: render lines with the Unicode box drawing characters
* mandoc is now able to handle the manual pages of the groff package.
--- MINOR NEW FEATURES ---
* -T html: new option -O toc (table of contents)
* -T html: second argument to -O man to support local and remote links
* mdoc(7) .Bd -centered now fills the text contained in it
* man-ext .SY and .YS macros (synopsis block)
* man-ext .TQ macro (tagged paragraph without vertical space before it)
* tbl(7) \& explicit alignment indicator
* roff(7) .shift, .while, and .return requests
* roff(7) .char request (output glyph definition)
* roff(7) .nop request (no operation)
* roff(7) .ft request: handle the CB, CI, and CR fonts
* roff(7) .if c conditional (character available)
* roff(7) \\$@ escape sequence (insert all macro arguments, quoted)
* roff(7) \*(.T predefined string (interpolate output device name)
* roff(7) \[charNNN] escape sequence (for printable ASCII characters)
* roff(7) \# escape sequence (line continuation with comment)
--- HTML OUTPUT SYNTAX CORRECTIONS ---
* Render .br and \p as <br/>, not as an empty <div>.
* Render .Pp and .PP as <p> and automatically close it when needed.
* Stop writing empty list elements for non-compact .Bl -tag lists.
* Do not put <p> inside <a> if .UR or .MT contain .PP.
* Implement tooltips purely in CSS rather than abusing title= attributes.
--- MINOR FUNCTIONAL IMPROVEMENTS ---
* many improvements to the handling of fill and no-fill mode
* tbl(7): better column widths in the presence of horizontal spans
* several minor improvements to escape sequence handling
* several minor improvements to manual font handling
* portability: autodetect need for _GNU_SOURCE or _OPENBSD_SOURCE
* portability: autodetect whether less(1) supports the -T option
* large numbers of bugfixes of diverse kinds
--- STRUCTURAL IMPROVEMENTS ---
* Disentangle eqn(7) and tbl(7) from other parser header files,
and clean up some parser data structures.
* Substantially simplify error and warning message infrastructure.
--- THANKS TO ---
* John Gardner for crucial help implementing tooltips in CSS.
* Alexander Bluhm, Raphael Graf, Ted Unangst (OpenBSD)
and Daniel Sabogal (Alpine Linux) for patches.
* Anthony Bentley and Jason McIntyre (OpenBSD) for documentation patches,
suggesting new features, bug reports, and useful discussions.
* Kyle Evans and Baptiste Daroussin (FreeBSD) for minor patches.
* Pali Rohar for suggesting multiple new features and for reporting
several bugs and missing features.
* Klemens Nanni (OpenBSD) for suggesting multiple new features.
* Kristaps Dzonsons (bsd.lv), Marc Espie (OpenBSD), Adam Kalisz,
and Laura Morales for suggesting new features.
* Wolfram Schneider and Yuri Pankov (FreeBSD) for reporting missing features.
* Edward Tomasz Napierala (FreeBSD) for suggesting a feature improvement.
* Thomas Klausner (NetBSD) and Sevan Janiyan (SmartOS)
for bug reports and release testing.
* Bryan Steele, Janne Johansson, Kurt Mosiejczuk, Mike Belopuhov, Theo
Buehler, Todd Miller (OpenBSD), Andreas Gustafsson, Christos Zoulas,
Robert Elz (NetBSD), Kurt Jaeger (FreeBSD), Fabio Scotoni, Kelvin
Sherlock, Mark Harris, Orestis Ioannou, Raf Czlonka, and Sean Farrell
for bug reports.
* Ulrich Spoerlein (FreeBSD), Leah Neukirchen (Void Linux),
Matej Cepl (openSUSE), and Jan Stary (MacOS X) for release testing.
* Brian Callahan and Stuart Henderson (OpenBSD) for help
with the OpenBSD groff port.
* Bertrand Garrigues, Branden Robinson, Ralph Corderoy, and Werner
Lemberg (GNU troff) for checking groff patches.
* Scott Cheloha, Theo de Raadt (OpenBSD)
and Natanael Copa (Alpine Linux) for useful discussions.

Import 1.14.4

This file lists the most important changes in the mandoc.bsd.lv distribution.

Changes in version 1.14.4, released on August 8, 2018

--- MAJOR NEW FEATURES ---
* In ASCII output, render mathematical symbols and greek letters
as transliterations conveying the characters' meanings rather
than trying to imitate their shape. Consequently, such characters
can now be used in portable manual pages. All the same, please
limit their use to contexts where they really matter, for example
when showing complicated mathematical formulae.
* First steps towards better support for small screens in HTML
output (responsive design): avoid most style= attributes, in
particular all hard-coded indentations and column widths, and
provide a better mandoc.css style sheet with a @media query,
using em units throughout, and avoiding redundancy in selectors.
* Better HTML output with some more fitting HTML elements, eliminating
needless class= attributes, and avoiding various HTML syntax errors
(element nesting, URL-fragment syntax, duplicate id= attributes).
--- MINOR NEW FEATURES ---
* When a man(1) argument contains a slash, imply -l like in man-db.
* Use TIOCGWINSZ to reduce the default -Owidth and -Oindent during
interactive use on terminals narrower than 79 columns.
* Generated PostScript files are now more than 50% smaller.
* Terminal rendering of eqn(7) is improved in several respects.
* Simplified and nicer output from the mdoc(7) .Lk macro, formatting
all links in-line, even long ones.
* roff(7) \n+ and \n- numerical register auto-increment and -decrement
* roff(7) .nr optional third argument (auto-increment step size)
* Autodetect in ./configure whether the compiler can use -W and -static,
allowing to build on Solaris 10 and 11 without any configure.local.
--- RELIABILITY BUGFIXES ---
* Only activate UTF-8 output when the user really selected UTF-8,
not some other multibyte character encoding.
* Prevent excessive .ll arguments from generating infinite output.
* Fix out of bounds accesses to parse buffers that could happen when
using renamed or user defined macros after roff(7) conditionals.
* Avoid an assertion failure in certain .Bl -column lists.
* Avoid a NULL pointer access on deroff() failure after '.SS ""'.
* Fix a segfault that could be triggered by two invalid .Dt macros.
* Fix two syntax errors in generated PDF files.
* Properly state the page size in generated PostScript files.
* Close a memory leak caused by missing gzclose(3).
* Fix misformatting of man(7) documents lacking .SH macros
in PostScript and PDF output.
* And many minor bugfixes.
--- THANKS TO ---
* Marc Espie (OpenBSD) for implementing the size reduction of
PostScript files, one additional patch for code simplification,
and two bug reports.
* Theo Buehler (OpenBSD) for a bugfix patch,
and Theo de Raadt (OpenBSD) for checking it.
* John Gardner for more than a dozen suggestions regarding HTML output.
* Mike Williams for teaching me how to use %%DocumentMedia and
setpagedevice in PostScript files.
* Werner Lemberg (groff) for feedback on mdoc(7) language changes.
* Colin Watson (man-db) for feedback on man-db semantics.
* Jason McIntyre (OpenBSD) for lots of feedback and suggestions
on diagnostic messages and on the documentation.
* Thomas Klausner (NetBSD) for suggesting two new style messages
and one new feature, for two bug reports, and for release testing.
* Leah Neukirchen (Void Linux) for suggesting a new style message,
five bug reports, and release testing.
* Anthony Bentley (OpenBSD) for reporting multiple bugs and missing
features.
* Paul Irofti (OpenBSD) and Nate Bargmann for suggesting new features.
* Michael Stapelberg (Debian) for bug reports and release testing.
* Christian Weisgerber, Jonathan Gray, Stuart Henderson,
Ted Unangst (OpenBSD), Takeshi Nakayama (NetBSD),
Anton Lazarov, Jakub Klinkovsky, Jan Stary, Jesper Wallin,
Will Backmam, and Wolfgang Mueller for bug reports.
* Sevan Janiyan (NetBSD) for additions to lib.in.
* George Brown for suggesting code simplifications.
* David Coppa, Igor Sobrado (OpenBSD), and Alexander Kuleshov
for documentation improvements.
* Laura Morales and Raf Czlonka for questions resulting in better
documentation.
* Yuri Pankov (illumos) for release testing.

Changes in version 1.14.3, released on August 5, 2017

--- BUG FIXES ---
* man(7): Do not crash with out-of-bounds read access to a constant
array if .sp or a blank line immediately precedes .SS or .SH.
* mdoc(7): Do not crash with out-of-bounds read access to a constant
array if .sp or a blank line precede the first .Sh macro.
* tbl(7): Ignore explicitly specified negative column widths rather than
wrapping around to huge numbers and risking memory exhaustion.
* man(1): No longer use names that only occur in the SYNOPSIS section.
Gets rid of some surprising behaviour and bogus warnings.
--- THANKS TO ---
Leah Neukirchen (Void Linux), Markus Waldeck (Debian),
Peter Bui (nd.edu), and Yuri Pankov (illumos) for bug reports.

Changes in version 1.14.2, released on July 28, 2017

--- MAJOR NEW FEATURES ---
* New mdoc(7) -Tmarkdown output mode.
* For -Thtml, implement internal hyperlinks pointing to authoritative
definitions of various syntax elements, similar to the ctags(1)-like
less(1) :t internal searching in terminal mode.
* Provide a superset of the functionality of the former mdoclint(1)
utility and a new -Wstyle message level with several new messages,
including validity checking of .Xr cross references.
* tbl(7): Implement automatic line breaking inside individual table
cells, and several other formatting improvements.
* eqn(7): Complete rewrite of the lexer, resulting in several bugfixes.
* Continue parser unification, in particular allowing generation
of syntax tree nodes on the roff(7) level, allowing implementation
of many additional roff requests.
--- REMOVED FUNCTIONALITY ---
* Delete the manpage(1) utility. It was never enabled in any release.
* Delete the -Txhtml command line option. It has been an obsolete
alias for the -Thtml output mode for more than two years.
--- MINOR NEW FEATURES ---
* -Tlint now puts parser messages on stdout instead of stderr,
making commands like "man -l -Tlint *.1" useful.
* mdoc(7): Various .Lk formatting improvements.
* mdoc(7) -Thtml: Better CSS for .Bl lists.
* man(7): Implement the .MT/.ME block macro (mailto hyperlink).
* man(7): Implement the .DT macro (restore default tab positions).
* man(7): Improved support for manuals generated with reStructuredText
by partial support for the \n[an-margin] number register.
* man(7) -Thtml: Support deep linking to .SH and .SS headers.
* tbl(7): Implement the "allbox" table option.
* tbl(7): Implement the column spacing and the 'w' (minimum column
width) layout modifiers.
* tbl(7): Significant improvements of the manual page.
* eqn(7): Much improved font selection, including recognition of
well-known function names, and a few other formatting improvements.
* eqn(7) -Thtml: Use <mn> and <mo> in addition to <mi>.
* roff(7): Implement the .ce (centering), .mc (margin character),
.rj (right justify), .ta (define tab stops), .ti (temporary indent),
.als (macro alias), .ec and .eo (escape character control),
.po (page offset), and .rn (macro rename) requests.
* roff(7) .am: Implement appending to mdoc(7) and man(7) macros.
* roff(7): implement the \h (horizontol motion), \l (horizontal
line drawing), and \p (break output line) escape sequences,
and also several additional character escape sequences.
* roff(7): Implement the 'd' conditional (macro or string defined).
* man.cgi(8) now uses pledge(2), too.
* regress.pl(1): simpler user interface, better summary output,
simpler code, and no more recursion.
--- THANKS TO ---
* Anthony Bentley (OpenBSD) for the implementation of .MT/.ME,
reports of many bugs and missing features, and suggestions
for a number of feature and documentation improvements.
* Sebastien Marie (OpenBSD) for two source code patches and
for some useful discussions.
* Florian Obser (OpenBSD) for a bugfix patch and a bug report.
* Jonathan Gray (OpenBSD) for several bug reports from afl(1)
and several more from static analysis tools.
* Theo Buehler (OpenBSD) for several bug reports, most from afl(1).
* Jason McIntyre (OpenBSD) for many useful discussions about a
wide variety of topics, lots of continuous testing, a number of
bug reports, and some suggestions for messages and documentation.
* Thomas Klausner (NetBSD) for lots of help while migrating
mdoclint(1) functionality to mandoc -Tlint, for suggesting
several useful new messages, and for release testing.
* Reyk Floeter (OpenBSD) and Vsevolod Stakhov (FreeBSD) for
suggesting a markdown output mode.
* Thomas Guettler for suggesting -Thtml internal hyperlinks.
* Yuri Pankov (Illumos) for inspiring new warning messages and
for extensive release testing.
* Anton Lindqvist and TJ Townsend (both OpenBSD) and Jan Stary
for multiple bug reports.
* Leah Neukirchen (Void Linux) for bug reports and release testing.
* Michael Stapelberg (Debian) for suggesting feature improvements
and for release testing.
* Martin Natano and Theo de Raadt (both OpenBSD), Andreas Voegele,
Gabriel Guzman, Gonzalo Tornaria, Markus Waldeck, and Raf Czlonka
for bug reports.
* Antoine Jacoutot (OpenBSD) and Steffen Nurpmeso for suggesting
feature improvements.
* Dag-Erling Smoergrav (FreeBSD) for inspiring new warning messages.
* Ted Unangst and Marc Espie (OpenBSD) for providing useful ideas.
* Svyatoslav Mishyn (Crux Linux) for release testing.
* Carsten Kunze (Heirloom roff) for help keeping mandoc and groff
compatible and for committing some of my patches to groff.

branches: 1.1.1.1.2; 1.1.1.1.14;
Changes in version 1.13.4, released on July 14, 2016

--- MAJOR NEW FEATURES ---
* man.conf(5): Design and implement a simpler configuration file format.
* man(1): Leverage less(1) -T and :t in a way resembling ctags(1)
to jump to the definitions of various terms inside manual pages.
* soelim(1): New implementation by Baptiste Daroussin.
* privilege limitation: Use OpenBSD pledge(2) or OS X sandbox_init(3)
when available.
* man.cgi(8): Support short URIs like http://man.openbsd.org/mdoc .
* mandoc.css: Use one unified stylesheet rather than three different ones.
--- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
* mdoc(7): Fix multiple aspects of SYNOPSIS .Nm formatting.
* man(1): Fix process group handling, avoiding unclean shutdowns.
--- PORTABILITY IMPROVEMENTS ---
* Correctly use the ohash(3) compatibility implementation
even when building without SQLite support.
* Add compat glue for building on Solaris 9 and 10.
* Let ./configure select a supported RE syntax for word boundaries.
* Support LDFLAGS, to be used for example for hardening options.
* Avoid mixing putchar(3) and putwchar(3) on the same file descriptor,
it resulted in output corruption on some platforms.
* Avoid reusing va_lists, use va_copy(3) for better portability.
* Do not hardcode the path to the more(1) program.
--- MINOR NEW FEATURES ---
* roff(7): Implement \n(.$ (number of macro arguments).
* roff(7): Fully implement \z (do not advance cursor).
* roff(7): Implement the `r' conditional (register exists).
* roff(7): Implement \\$* (interpolate all arguments).
* roff(7): Parse and ignore \, and \/ (italic corrections).
* When there is no -m, no -M, no MANPATH and no /etc/man.conf,
fall back to /usr/share/man:/usr/X11R6/man:/usr/local/man.
* man(1): Give manuals in purely numerical sections priority over
manuals of the same name in sections with an alphabetical suffix.
* man.cgi(8): Support "header.html" and "footer.html".
* man.cgi(8): Set the "autofocus" attribute on the query text box.
* man.cgi(8): Simplify the search form, drop two useless buttons.
* man.cgi(8): Delete the pseudo-manpath "mandoc", assume that
apropos(1) and man.cgi(8) are installed in the default manpath.
--- RELIABILITY BUGFIXES ---
* mdoc(7): Avoid a use after free and an assertion failure when nodes
are deleted during validation.
* mdoc(7): Avoid a NULL pointer access when .Bd has no arguments.
* mdoc(7): Avoid a NULL pointer access triggered by mismatching end macros.
* mdoc(7): Avoid an assertion when .Fo has no argument.
* mdoc(7): Avoid an assertion when .Ta<tab> occurs in .Bl -column.
* mdoc(7): Avoid an assertion when a body gets broken and has a tail.
* roff(7): Avoid an assertion caused by blanks inside \o.
* roff(7): Make .so links to gziped manuals work without mandoc.db(5).
* tbl(7): Avoid a use after free when the last line of a layout is empty.
* eqn(7): Avoid an infinite loop caused by recursive "define".
* makewhatis(8): Avoid a segfault caused by unusual directory structures.
* Fix handling of leading, trailing, and double colons in MANPATH and -m.
--- MINOR BUGFIXES ---
* mdoc(7): Put arguments to end macros of broken partial explicit blocks
inside the breaking block.
* mdoc(7): Let .Dv force normal font.
* mdoc(7): Make trailing whitespace significant in .Bl -tag widths.
* mdoc(7): Fix macro interpretation around tabs in .Bl -column.
* man(7): Use the default width for .RS without arguments.
* man(7): On a new RS nesting level, the saved width starts from
the default width, not from the saved width of the previous level.
* man(7): Allow .PD in next-line scope.
* man(7): Improve handling of empty .HP.
* man(7): Improve formatting of .br and .sp inside .HP.
* man(7): Do not mistreat empty arguments to font alternating
macros as vertical spacing requests.
* man(7): Allow fill mode changes in tagged paragraph next-line scope.
* man(7): Fix minor bugs in block rewinding and simplify the related code.
* man(7): Add missing line breaks before subsection headers.
* man(7): Give section and subsection headers hanging indentation.
* man(7): Make trailing whitespace significant in .TP widths.
* roff(7): Don't allow breaking the output line after hyphens
that immediately follow escape sequences.
* roff(7): Ignore blank characters at the beginning of conditional blocks.
* roff(7): Escape breakable hyphens only after handling input line traps.
* roff(7): Reject \[uD800] to \[uDFFF] (surrogates) in the parser.
* tbl(7): Allow more than one data field after T} on the same input line.
* terminal output: Apply bold and italic to non-ASCII Unicode codepoints.
* terminal output: Improve rounding rules for horizontal scaling widths.
* HTML output: Render ASCII_NBRSP as "&nbsp;", not "-".
* man(1): Do not match the first part of a name if it continues with a dot.
* man(1): Keep working even if the current directory is unusable.
* man(1): Better error message when $PAGER is invalid.
* makewhatis(8): Improve handling of .Va and .Vt macros.
* apropos(1): Print "nothing appropriate" to stderr when appropriate.
* apropos(1): Abort with a useful error message when elementary
database operations like preparing queries or binding variables fail.
--- STRUCTURAL CHANGES, no functional change ---
* mdoc(7) and man(7): Unified data structures struct roff_node etc.
* mdoc(7) and man(7): Unified node handling library in roff.c.
* mdoc(7) and man(7): Seperate validation phase from parsing.
* roff(7): Major character table cleanup.
* Link with libz rather than forking gunzip(1).
--- THANKS TO ---
* Baptiste Daroussin (FreeBSD) for the new soelim(1)
and for release testing.
* Anthony Bentley (OpenBSD) for unifying mandoc.css, two nice
patches for man.cgi(8), some documentation patches, some bug
reports, and various useful discussions.
* Todd Miller (OpenBSD) for lots of help with process group and
signal handling, a few patches, some bug reports and some useful
discussions.
* Jonathan Gray (OpenBSD) for yet more testing with afl(1)
again resulting in more than half a dozen important bug reports.
* Svyatoslav Mishyn (Crux Linux) for some patches, several bug
reports, and extensive release testing.
* Christian Neukirchen (void Linux) for a number of compatibility
patches and suggestions and several bug reports.
* Christos Zoulas (NetBSD) for a bug fix patch and some useful
suggestions for cleanup.
* Florian Obser (OpenBSD) for a bugfix patch and some bug reports.
* Sevan Janiyan for help with Solaris compatibility and release
testing on many platforms.
* Jan Holzhueter and OpenCSW in general for help with Solaris
compatibility, and for providing me with a Solaris 9/10/11 testing
environment.
* Michael McConville (OpenBSD) for some simple cleanup patches.
* Thomas Klausner (NetBSD) for some bug reports and release testing.
* Christian Weisgerber, Dmitrij Czarkoff, Igor Sobrado,
Ken Westerback, Marc Espie, Mike Belopuhov, Rafael Neves,
Ted Unangst, Tim van der Molen, Theo Buehler, Theo de Raadt
(OpenBSD), Kurt Jaeger, Dag Erling Smoergrav (FreeBSD),
Joerg Sonnenberger (NetBSD), Carsten Kunze (Heirloom troff),
Daniel Levai, Fabian Raetz, Jan Stary, Jean-Yves Migeon,
Lorenzo Beretta, Markus Waldeck, Maxim Belooussov, Michael Reed,
Peter Bray, and Serguey Parkhomovsky for bug reports and feature
suggestions.
* Alexander Hall, Andrew Fresh, Antoine Jacoutot, Doug Hogan,
Jason McIntyre, Jasper Lievisse Adriaanse, Kent Spillner,
Nicholas Marriott, Peter Hessler, Sebastien Marie, Stefan Sperling,
and Theo de Raadt (OpenBSD) for helpful discussions and feedback.

Import 1.14.4

This file lists the most important changes in the mandoc.bsd.lv distribution.

Changes in version 1.14.4, released on August 8, 2018

--- MAJOR NEW FEATURES ---
* In ASCII output, render mathematical symbols and greek letters
as transliterations conveying the characters' meanings rather
than trying to imitate their shape. Consequently, such characters
can now be used in portable manual pages. All the same, please
limit their use to contexts where they really matter, for example
when showing complicated mathematical formulae.
* First steps towards better support for small screens in HTML
output (responsive design): avoid most style= attributes, in
particular all hard-coded indentations and column widths, and
provide a better mandoc.css style sheet with a @media query,
using em units throughout, and avoiding redundancy in selectors.
* Better HTML output with some more fitting HTML elements, eliminating
needless class= attributes, and avoiding various HTML syntax errors
(element nesting, URL-fragment syntax, duplicate id= attributes).
--- MINOR NEW FEATURES ---
* When a man(1) argument contains a slash, imply -l like in man-db.
* Use TIOCGWINSZ to reduce the default -Owidth and -Oindent during
interactive use on terminals narrower than 79 columns.
* Generated PostScript files are now more than 50% smaller.
* Terminal rendering of eqn(7) is improved in several respects.
* Simplified and nicer output from the mdoc(7) .Lk macro, formatting
all links in-line, even long ones.
* roff(7) \n+ and \n- numerical register auto-increment and -decrement
* roff(7) .nr optional third argument (auto-increment step size)
* Autodetect in ./configure whether the compiler can use -W and -static,
allowing to build on Solaris 10 and 11 without any configure.local.
--- RELIABILITY BUGFIXES ---
* Only activate UTF-8 output when the user really selected UTF-8,
not some other multibyte character encoding.
* Prevent excessive .ll arguments from generating infinite output.
* Fix out of bounds accesses to parse buffers that could happen when
using renamed or user defined macros after roff(7) conditionals.
* Avoid an assertion failure in certain .Bl -column lists.
* Avoid a NULL pointer access on deroff() failure after '.SS ""'.
* Fix a segfault that could be triggered by two invalid .Dt macros.
* Fix two syntax errors in generated PDF files.
* Properly state the page size in generated PostScript files.
* Close a memory leak caused by missing gzclose(3).
* Fix misformatting of man(7) documents lacking .SH macros
in PostScript and PDF output.
* And many minor bugfixes.
--- THANKS TO ---
* Marc Espie (OpenBSD) for implementing the size reduction of
PostScript files, one additional patch for code simplification,
and two bug reports.
* Theo Buehler (OpenBSD) for a bugfix patch,
and Theo de Raadt (OpenBSD) for checking it.
* John Gardner for more than a dozen suggestions regarding HTML output.
* Mike Williams for teaching me how to use %%DocumentMedia and
setpagedevice in PostScript files.
* Werner Lemberg (groff) for feedback on mdoc(7) language changes.
* Colin Watson (man-db) for feedback on man-db semantics.
* Jason McIntyre (OpenBSD) for lots of feedback and suggestions
on diagnostic messages and on the documentation.
* Thomas Klausner (NetBSD) for suggesting two new style messages
and one new feature, for two bug reports, and for release testing.
* Leah Neukirchen (Void Linux) for suggesting a new style message,
five bug reports, and release testing.
* Anthony Bentley (OpenBSD) for reporting multiple bugs and missing
features.
* Paul Irofti (OpenBSD) and Nate Bargmann for suggesting new features.
* Michael Stapelberg (Debian) for bug reports and release testing.
* Christian Weisgerber, Jonathan Gray, Stuart Henderson,
Ted Unangst (OpenBSD), Takeshi Nakayama (NetBSD),
Anton Lazarov, Jakub Klinkovsky, Jan Stary, Jesper Wallin,
Will Backmam, and Wolfgang Mueller for bug reports.
* Sevan Janiyan (NetBSD) for additions to lib.in.
* George Brown for suggesting code simplifications.
* David Coppa, Igor Sobrado (OpenBSD), and Alexander Kuleshov
for documentation improvements.
* Laura Morales and Raf Czlonka for questions resulting in better
documentation.
* Yuri Pankov (illumos) for release testing.

Changes in version 1.14.3, released on August 5, 2017

--- BUG FIXES ---
* man(7): Do not crash with out-of-bounds read access to a constant
array if .sp or a blank line immediately precedes .SS or .SH.
* mdoc(7): Do not crash with out-of-bounds read access to a constant
array if .sp or a blank line precede the first .Sh macro.
* tbl(7): Ignore explicitly specified negative column widths rather than
wrapping around to huge numbers and risking memory exhaustion.
* man(1): No longer use names that only occur in the SYNOPSIS section.
Gets rid of some surprising behaviour and bogus warnings.
--- THANKS TO ---
Leah Neukirchen (Void Linux), Markus Waldeck (Debian),
Peter Bui (nd.edu), and Yuri Pankov (illumos) for bug reports.

Changes in version 1.14.2, released on July 28, 2017

--- MAJOR NEW FEATURES ---
* New mdoc(7) -Tmarkdown output mode.
* For -Thtml, implement internal hyperlinks pointing to authoritative
definitions of various syntax elements, similar to the ctags(1)-like
less(1) :t internal searching in terminal mode.
* Provide a superset of the functionality of the former mdoclint(1)
utility and a new -Wstyle message level with several new messages,
including validity checking of .Xr cross references.
* tbl(7): Implement automatic line breaking inside individual table
cells, and several other formatting improvements.
* eqn(7): Complete rewrite of the lexer, resulting in several bugfixes.
* Continue parser unification, in particular allowing generation
of syntax tree nodes on the roff(7) level, allowing implementation
of many additional roff requests.
--- REMOVED FUNCTIONALITY ---
* Delete the manpage(1) utility. It was never enabled in any release.
* Delete the -Txhtml command line option. It has been an obsolete
alias for the -Thtml output mode for more than two years.
--- MINOR NEW FEATURES ---
* -Tlint now puts parser messages on stdout instead of stderr,
making commands like "man -l -Tlint *.1" useful.
* mdoc(7): Various .Lk formatting improvements.
* mdoc(7) -Thtml: Better CSS for .Bl lists.
* man(7): Implement the .MT/.ME block macro (mailto hyperlink).
* man(7): Implement the .DT macro (restore default tab positions).
* man(7): Improved support for manuals generated with reStructuredText
by partial support for the \n[an-margin] number register.
* man(7) -Thtml: Support deep linking to .SH and .SS headers.
* tbl(7): Implement the "allbox" table option.
* tbl(7): Implement the column spacing and the 'w' (minimum column
width) layout modifiers.
* tbl(7): Significant improvements of the manual page.
* eqn(7): Much improved font selection, including recognition of
well-known function names, and a few other formatting improvements.
* eqn(7) -Thtml: Use <mn> and <mo> in addition to <mi>.
* roff(7): Implement the .ce (centering), .mc (margin character),
.rj (right justify), .ta (define tab stops), .ti (temporary indent),
.als (macro alias), .ec and .eo (escape character control),
.po (page offset), and .rn (macro rename) requests.
* roff(7) .am: Implement appending to mdoc(7) and man(7) macros.
* roff(7): implement the \h (horizontol motion), \l (horizontal
line drawing), and \p (break output line) escape sequences,
and also several additional character escape sequences.
* roff(7): Implement the 'd' conditional (macro or string defined).
* man.cgi(8) now uses pledge(2), too.
* regress.pl(1): simpler user interface, better summary output,
simpler code, and no more recursion.
--- THANKS TO ---
* Anthony Bentley (OpenBSD) for the implementation of .MT/.ME,
reports of many bugs and missing features, and suggestions
for a number of feature and documentation improvements.
* Sebastien Marie (OpenBSD) for two source code patches and
for some useful discussions.
* Florian Obser (OpenBSD) for a bugfix patch and a bug report.
* Jonathan Gray (OpenBSD) for several bug reports from afl(1)
and several more from static analysis tools.
* Theo Buehler (OpenBSD) for several bug reports, most from afl(1).
* Jason McIntyre (OpenBSD) for many useful discussions about a
wide variety of topics, lots of continuous testing, a number of
bug reports, and some suggestions for messages and documentation.
* Thomas Klausner (NetBSD) for lots of help while migrating
mdoclint(1) functionality to mandoc -Tlint, for suggesting
several useful new messages, and for release testing.
* Reyk Floeter (OpenBSD) and Vsevolod Stakhov (FreeBSD) for
suggesting a markdown output mode.
* Thomas Guettler for suggesting -Thtml internal hyperlinks.
* Yuri Pankov (Illumos) for inspiring new warning messages and
for extensive release testing.
* Anton Lindqvist and TJ Townsend (both OpenBSD) and Jan Stary
for multiple bug reports.
* Leah Neukirchen (Void Linux) for bug reports and release testing.
* Michael Stapelberg (Debian) for suggesting feature improvements
and for release testing.
* Martin Natano and Theo de Raadt (both OpenBSD), Andreas Voegele,
Gabriel Guzman, Gonzalo Tornaria, Markus Waldeck, and Raf Czlonka
for bug reports.
* Antoine Jacoutot (OpenBSD) and Steffen Nurpmeso for suggesting
feature improvements.
* Dag-Erling Smoergrav (FreeBSD) for inspiring new warning messages.
* Ted Unangst and Marc Espie (OpenBSD) for providing useful ideas.
* Svyatoslav Mishyn (Crux Linux) for release testing.
* Carsten Kunze (Heirloom roff) for help keeping mandoc and groff
compatible and for committing some of my patches to groff.

branches: 1.1.1.1.2; 1.1.1.1.14;
Changes in version 1.13.4, released on July 14, 2016

--- MAJOR NEW FEATURES ---
* man.conf(5): Design and implement a simpler configuration file format.
* man(1): Leverage less(1) -T and :t in a way resembling ctags(1)
to jump to the definitions of various terms inside manual pages.
* soelim(1): New implementation by Baptiste Daroussin.
* privilege limitation: Use OpenBSD pledge(2) or OS X sandbox_init(3)
when available.
* man.cgi(8): Support short URIs like http://man.openbsd.org/mdoc .
* mandoc.css: Use one unified stylesheet rather than three different ones.
--- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
* mdoc(7): Fix multiple aspects of SYNOPSIS .Nm formatting.
* man(1): Fix process group handling, avoiding unclean shutdowns.
--- PORTABILITY IMPROVEMENTS ---
* Correctly use the ohash(3) compatibility implementation
even when building without SQLite support.
* Add compat glue for building on Solaris 9 and 10.
* Let ./configure select a supported RE syntax for word boundaries.
* Support LDFLAGS, to be used for example for hardening options.
* Avoid mixing putchar(3) and putwchar(3) on the same file descriptor,
it resulted in output corruption on some platforms.
* Avoid reusing va_lists, use va_copy(3) for better portability.
* Do not hardcode the path to the more(1) program.
--- MINOR NEW FEATURES ---
* roff(7): Implement \n(.$ (number of macro arguments).
* roff(7): Fully implement \z (do not advance cursor).
* roff(7): Implement the `r' conditional (register exists).
* roff(7): Implement \\$* (interpolate all arguments).
* roff(7): Parse and ignore \, and \/ (italic corrections).
* When there is no -m, no -M, no MANPATH and no /etc/man.conf,
fall back to /usr/share/man:/usr/X11R6/man:/usr/local/man.
* man(1): Give manuals in purely numerical sections priority over
manuals of the same name in sections with an alphabetical suffix.
* man.cgi(8): Support "header.html" and "footer.html".
* man.cgi(8): Set the "autofocus" attribute on the query text box.
* man.cgi(8): Simplify the search form, drop two useless buttons.
* man.cgi(8): Delete the pseudo-manpath "mandoc", assume that
apropos(1) and man.cgi(8) are installed in the default manpath.
--- RELIABILITY BUGFIXES ---
* mdoc(7): Avoid a use after free and an assertion failure when nodes
are deleted during validation.
* mdoc(7): Avoid a NULL pointer access when .Bd has no arguments.
* mdoc(7): Avoid a NULL pointer access triggered by mismatching end macros.
* mdoc(7): Avoid an assertion when .Fo has no argument.
* mdoc(7): Avoid an assertion when .Ta<tab> occurs in .Bl -column.
* mdoc(7): Avoid an assertion when a body gets broken and has a tail.
* roff(7): Avoid an assertion caused by blanks inside \o.
* roff(7): Make .so links to gziped manuals work without mandoc.db(5).
* tbl(7): Avoid a use after free when the last line of a layout is empty.
* eqn(7): Avoid an infinite loop caused by recursive "define".
* makewhatis(8): Avoid a segfault caused by unusual directory structures.
* Fix handling of leading, trailing, and double colons in MANPATH and -m.
--- MINOR BUGFIXES ---
* mdoc(7): Put arguments to end macros of broken partial explicit blocks
inside the breaking block.
* mdoc(7): Let .Dv force normal font.
* mdoc(7): Make trailing whitespace significant in .Bl -tag widths.
* mdoc(7): Fix macro interpretation around tabs in .Bl -column.
* man(7): Use the default width for .RS without arguments.
* man(7): On a new RS nesting level, the saved width starts from
the default width, not from the saved width of the previous level.
* man(7): Allow .PD in next-line scope.
* man(7): Improve handling of empty .HP.
* man(7): Improve formatting of .br and .sp inside .HP.
* man(7): Do not mistreat empty arguments to font alternating
macros as vertical spacing requests.
* man(7): Allow fill mode changes in tagged paragraph next-line scope.
* man(7): Fix minor bugs in block rewinding and simplify the related code.
* man(7): Add missing line breaks before subsection headers.
* man(7): Give section and subsection headers hanging indentation.
* man(7): Make trailing whitespace significant in .TP widths.
* roff(7): Don't allow breaking the output line after hyphens
that immediately follow escape sequences.
* roff(7): Ignore blank characters at the beginning of conditional blocks.
* roff(7): Escape breakable hyphens only after handling input line traps.
* roff(7): Reject \[uD800] to \[uDFFF] (surrogates) in the parser.
* tbl(7): Allow more than one data field after T} on the same input line.
* terminal output: Apply bold and italic to non-ASCII Unicode codepoints.
* terminal output: Improve rounding rules for horizontal scaling widths.
* HTML output: Render ASCII_NBRSP as "&nbsp;", not "-".
* man(1): Do not match the first part of a name if it continues with a dot.
* man(1): Keep working even if the current directory is unusable.
* man(1): Better error message when $PAGER is invalid.
* makewhatis(8): Improve handling of .Va and .Vt macros.
* apropos(1): Print "nothing appropriate" to stderr when appropriate.
* apropos(1): Abort with a useful error message when elementary
database operations like preparing queries or binding variables fail.
--- STRUCTURAL CHANGES, no functional change ---
* mdoc(7) and man(7): Unified data structures struct roff_node etc.
* mdoc(7) and man(7): Unified node handling library in roff.c.
* mdoc(7) and man(7): Seperate validation phase from parsing.
* roff(7): Major character table cleanup.
* Link with libz rather than forking gunzip(1).
--- THANKS TO ---
* Baptiste Daroussin (FreeBSD) for the new soelim(1)
and for release testing.
* Anthony Bentley (OpenBSD) for unifying mandoc.css, two nice
patches for man.cgi(8), some documentation patches, some bug
reports, and various useful discussions.
* Todd Miller (OpenBSD) for lots of help with process group and
signal handling, a few patches, some bug reports and some useful
discussions.
* Jonathan Gray (OpenBSD) for yet more testing with afl(1)
again resulting in more than half a dozen important bug reports.
* Svyatoslav Mishyn (Crux Linux) for some patches, several bug
reports, and extensive release testing.
* Christian Neukirchen (void Linux) for a number of compatibility
patches and suggestions and several bug reports.
* Christos Zoulas (NetBSD) for a bug fix patch and some useful
suggestions for cleanup.
* Florian Obser (OpenBSD) for a bugfix patch and some bug reports.
* Sevan Janiyan for help with Solaris compatibility and release
testing on many platforms.
* Jan Holzhueter and OpenCSW in general for help with Solaris
compatibility, and for providing me with a Solaris 9/10/11 testing
environment.
* Michael McConville (OpenBSD) for some simple cleanup patches.
* Thomas Klausner (NetBSD) for some bug reports and release testing.
* Christian Weisgerber, Dmitrij Czarkoff, Igor Sobrado,
Ken Westerback, Marc Espie, Mike Belopuhov, Rafael Neves,
Ted Unangst, Tim van der Molen, Theo Buehler, Theo de Raadt
(OpenBSD), Kurt Jaeger, Dag Erling Smoergrav (FreeBSD),
Joerg Sonnenberger (NetBSD), Carsten Kunze (Heirloom troff),
Daniel Levai, Fabian Raetz, Jan Stary, Jean-Yves Migeon,
Lorenzo Beretta, Markus Waldeck, Maxim Belooussov, Michael Reed,
Peter Bray, and Serguey Parkhomovsky for bug reports and feature
suggestions.
* Alexander Hall, Andrew Fresh, Antoine Jacoutot, Doug Hogan,
Jason McIntyre, Jasper Lievisse Adriaanse, Kent Spillner,
Nicholas Marriott, Peter Hessler, Sebastien Marie, Stefan Sperling,
and Theo de Raadt (OpenBSD) for helpful discussions and feedback.

branches: 1.1.1.1.2;
Changes in version 1.13.4, released on July 14, 2016

--- MAJOR NEW FEATURES ---
* man.conf(5): Design and implement a simpler configuration file format.
* man(1): Leverage less(1) -T and :t in a way resembling ctags(1)
to jump to the definitions of various terms inside manual pages.
* soelim(1): New implementation by Baptiste Daroussin.
* privilege limitation: Use OpenBSD pledge(2) or OS X sandbox_init(3)
when available.
* man.cgi(8): Support short URIs like http://man.openbsd.org/mdoc .
* mandoc.css: Use one unified stylesheet rather than three different ones.
--- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
* mdoc(7): Fix multiple aspects of SYNOPSIS .Nm formatting.
* man(1): Fix process group handling, avoiding unclean shutdowns.
--- PORTABILITY IMPROVEMENTS ---
* Correctly use the ohash(3) compatibility implementation
even when building without SQLite support.
* Add compat glue for building on Solaris 9 and 10.
* Let ./configure select a supported RE syntax for word boundaries.
* Support LDFLAGS, to be used for example for hardening options.
* Avoid mixing putchar(3) and putwchar(3) on the same file descriptor,
it resulted in output corruption on some platforms.
* Avoid reusing va_lists, use va_copy(3) for better portability.
* Do not hardcode the path to the more(1) program.
--- MINOR NEW FEATURES ---
* roff(7): Implement \n(.$ (number of macro arguments).
* roff(7): Fully implement \z (do not advance cursor).
* roff(7): Implement the `r' conditional (register exists).
* roff(7): Implement \\$* (interpolate all arguments).
* roff(7): Parse and ignore \, and \/ (italic corrections).
* When there is no -m, no -M, no MANPATH and no /etc/man.conf,
fall back to /usr/share/man:/usr/X11R6/man:/usr/local/man.
* man(1): Give manuals in purely numerical sections priority over
manuals of the same name in sections with an alphabetical suffix.
* man.cgi(8): Support "header.html" and "footer.html".
* man.cgi(8): Set the "autofocus" attribute on the query text box.
* man.cgi(8): Simplify the search form, drop two useless buttons.
* man.cgi(8): Delete the pseudo-manpath "mandoc", assume that
apropos(1) and man.cgi(8) are installed in the default manpath.
--- RELIABILITY BUGFIXES ---
* mdoc(7): Avoid a use after free and an assertion failure when nodes
are deleted during validation.
* mdoc(7): Avoid a NULL pointer access when .Bd has no arguments.
* mdoc(7): Avoid a NULL pointer access triggered by mismatching end macros.
* mdoc(7): Avoid an assertion when .Fo has no argument.
* mdoc(7): Avoid an assertion when .Ta<tab> occurs in .Bl -column.
* mdoc(7): Avoid an assertion when a body gets broken and has a tail.
* roff(7): Avoid an assertion caused by blanks inside \o.
* roff(7): Make .so links to gziped manuals work without mandoc.db(5).
* tbl(7): Avoid a use after free when the last line of a layout is empty.
* eqn(7): Avoid an infinite loop caused by recursive "define".
* makewhatis(8): Avoid a segfault caused by unusual directory structures.
* Fix handling of leading, trailing, and double colons in MANPATH and -m.
--- MINOR BUGFIXES ---
* mdoc(7): Put arguments to end macros of broken partial explicit blocks
inside the breaking block.
* mdoc(7): Let .Dv force normal font.
* mdoc(7): Make trailing whitespace significant in .Bl -tag widths.
* mdoc(7): Fix macro interpretation around tabs in .Bl -column.
* man(7): Use the default width for .RS without arguments.
* man(7): On a new RS nesting level, the saved width starts from
the default width, not from the saved width of the previous level.
* man(7): Allow .PD in next-line scope.
* man(7): Improve handling of empty .HP.
* man(7): Improve formatting of .br and .sp inside .HP.
* man(7): Do not mistreat empty arguments to font alternating
macros as vertical spacing requests.
* man(7): Allow fill mode changes in tagged paragraph next-line scope.
* man(7): Fix minor bugs in block rewinding and simplify the related code.
* man(7): Add missing line breaks before subsection headers.
* man(7): Give section and subsection headers hanging indentation.
* man(7): Make trailing whitespace significant in .TP widths.
* roff(7): Don't allow breaking the output line after hyphens
that immediately follow escape sequences.
* roff(7): Ignore blank characters at the beginning of conditional blocks.
* roff(7): Escape breakable hyphens only after handling input line traps.
* roff(7): Reject \[uD800] to \[uDFFF] (surrogates) in the parser.
* tbl(7): Allow more than one data field after T} on the same input line.
* terminal output: Apply bold and italic to non-ASCII Unicode codepoints.
* terminal output: Improve rounding rules for horizontal scaling widths.
* HTML output: Render ASCII_NBRSP as "&nbsp;", not "-".
* man(1): Do not match the first part of a name if it continues with a dot.
* man(1): Keep working even if the current directory is unusable.
* man(1): Better error message when $PAGER is invalid.
* makewhatis(8): Improve handling of .Va and .Vt macros.
* apropos(1): Print "nothing appropriate" to stderr when appropriate.
* apropos(1): Abort with a useful error message when elementary
database operations like preparing queries or binding variables fail.
--- STRUCTURAL CHANGES, no functional change ---
* mdoc(7) and man(7): Unified data structures struct roff_node etc.
* mdoc(7) and man(7): Unified node handling library in roff.c.
* mdoc(7) and man(7): Seperate validation phase from parsing.
* roff(7): Major character table cleanup.
* Link with libz rather than forking gunzip(1).
--- THANKS TO ---
* Baptiste Daroussin (FreeBSD) for the new soelim(1)
and for release testing.
* Anthony Bentley (OpenBSD) for unifying mandoc.css, two nice
patches for man.cgi(8), some documentation patches, some bug
reports, and various useful discussions.
* Todd Miller (OpenBSD) for lots of help with process group and
signal handling, a few patches, some bug reports and some useful
discussions.
* Jonathan Gray (OpenBSD) for yet more testing with afl(1)
again resulting in more than half a dozen important bug reports.
* Svyatoslav Mishyn (Crux Linux) for some patches, several bug
reports, and extensive release testing.
* Christian Neukirchen (void Linux) for a number of compatibility
patches and suggestions and several bug reports.
* Christos Zoulas (NetBSD) for a bug fix patch and some useful
suggestions for cleanup.
* Florian Obser (OpenBSD) for a bugfix patch and some bug reports.
* Sevan Janiyan for help with Solaris compatibility and release
testing on many platforms.
* Jan Holzhueter and OpenCSW in general for help with Solaris
compatibility, and for providing me with a Solaris 9/10/11 testing
environment.
* Michael McConville (OpenBSD) for some simple cleanup patches.
* Thomas Klausner (NetBSD) for some bug reports and release testing.
* Christian Weisgerber, Dmitrij Czarkoff, Igor Sobrado,
Ken Westerback, Marc Espie, Mike Belopuhov, Rafael Neves,
Ted Unangst, Tim van der Molen, Theo Buehler, Theo de Raadt
(OpenBSD), Kurt Jaeger, Dag Erling Smoergrav (FreeBSD),
Joerg Sonnenberger (NetBSD), Carsten Kunze (Heirloom troff),
Daniel Levai, Fabian Raetz, Jan Stary, Jean-Yves Migeon,
Lorenzo Beretta, Markus Waldeck, Maxim Belooussov, Michael Reed,
Peter Bray, and Serguey Parkhomovsky for bug reports and feature
suggestions.
* Alexander Hall, Andrew Fresh, Antoine Jacoutot, Doug Hogan,
Jason McIntyre, Jasper Lievisse Adriaanse, Kent Spillner,
Nicholas Marriott, Peter Hessler, Sebastien Marie, Stefan Sperling,
and Theo de Raadt (OpenBSD) for helpful discussions and feedback.