NEWS

   1 $Id: NEWS,v 1.10 2015/11/05 16:58:20 schwarze Exp $
   2
   3 This file lists the most important changes in the mdocml.bsd.lv distribution.
   4
   5 Changes in version 1.13.3, released on March 13, 2015
   6
   7     --- MAJOR NEW FEATURES ---
   8  * When a manual is missing from an outdated database, let man(1)
   9    show it anyway, using a KISS file system lookup as a fallback.
  10  * Use this to always provide man(1), even without database support.
  11  * Fatal errors no longer exist.  If a file can be opened, mandoc
  12    will produce some output; at worst, the output may be almost empty.
  13  * New -Wunsupp message level.
  14     --- POTENTIONALLY SECURITY RELEVANT BUGFIXES ---
  15  * Fix a potential write buffer overrun on incomplete string conditionals.
  16    http://mdocml.bsd.lv/cgi-bin/cvsweb/roff.c#rev1.241
  17  * Fix a potential write buffer overrun on backslash at EOF in a conditional.
  18    http://mdocml.bsd.lv/cgi-bin/cvsweb/roff.c#rev1.247
  19  * Fix a use after free sometimes hit when validation deletes a block.
  20    http://mdocml.bsd.lv/cgi-bin/cvsweb/mdoc_macro.c#rev1.180
  21     --- MAJOR FUNCTIONALLY RELEVANT BUGFIXES ---
  22  * Let man(1) show manuals for the current architecture by default,
  23    and support the MACHINE environment variable.
  24  * Fix the man(1) and apropos(1) -m option, it didn't work at all.
  25  * Do not spawn a pager when there is no output.
  26  * In makewhatis(8), fix detection of hardlinked manuals on platforms
  27    having padding in struct inodev (typically 64bit platforms).
  28     --- PORTABILITY IMPROVEMENTS ---
  29  * Ignore O_CLOEXEC when the operating system doesn't provide it.
  30  * Avoid forward reference to enum type which violates ISO C99.
  31  * Support homebrew-style linking on Mac OS X.
  32     --- MINOR NEW FEATURES ---
  33  * lookup: Accept digit+letter and "n" as section names in man(1),
  34    and consistently handle digit+letter in file name extensions.
  35  * lookup: Speed up -s/-S by using the "mlinks" rather than the "keys" table.
  36  * output: Insert horizontal lines between formatted manual pages.
  37  * input: New stricter and more resilient UTF-8 parser.
  38  * mdoc(7): Refactor block rewinding for simpler and more robust parsing.
  39  * man(7): Use the -Ios option when .TH has less than four arguments.
  40  * tbl(7): Implement the "center" option.
  41  * tbl(7): New option and format parsers, improved in many respects.
  42  * roff(7): Basic implementation of the \o escape sequence (overstrike),
  43    and improved rendering of overstrikes in PostScript and PDF output.
  44  * Message improvements, in particular for, but not restricted to,
  45    eqn(7), tbl(7), and wrong numbers of arguments in mdoc(7) and man(7),
  46    in various cases also improving output generated by invalid input.
  47  * Delete the -V option.  It serves no purpose but keeps confusing people.
  48  * gmdiff: Minimal support for Heirloom roff.
  49     --- RELIABILITY BUGFIXES ---
  50  * tbl(7): Fix a read buffer overrun on 'f' at EOL in a layout.
  51  * roff(7): Fix a read buffer overrun on incomplete numerical conditions.
  52  * mdoc(7): Fix a NULL pointer access on .Nd followed by an explicit block.
  53  * mdoc(7): Fix a NULL pointer access on .It Xo without .Xc.
  54  * mdoc(7): Fix a NULL pointer access on .Eo without a tail.
  55  * mdoc(7): Fix a NULL pointer access in the validation of empty .St macros.
  56  * man(7)/tbl(7): Fix a NULL pointer access on .TS right after .TP.
  57  * tbl(7): Fix a NULL pointer access on layout lines without any cells.
  58  * eqn(7): Fix NULL pointer accesses in the terminal formatter.
  59  * roff(7): Fix a NULL pointer access on trailing \s-/\s+ without an argument.
  60  * gz: Fix a potential NULL pointer access after waitpid() failure.
  61  * roff(7): Don't let the modulo operator divide by zero.
  62  * input: Fix an assertion failure on certain invalid UTF-8 input.
  63  * terminal output: Allow arbitrary depth of the font stack (assertion fix).
  64  * mdoc(7): Fix assertion failures and endless loops on invalid block closing.
  65  * mdoc(7): Fix an assertion failure on .Bl .Sm not followed by .It.
  66  * mdoc(7): Fix an assertion failure on .Bl -column ... .El .Ta.
  67  * tbl(7): Fix assertion failures by macros inside table data,
  68    but do not throw away the macro arguments.
  69  * Prevent certain kinds of unreasonable input from producing excessive
  70    output, in one case caused by unsigned integer underflow.
  71  * Fix a potential memory leak in makewhatis(8) on very long filenames.
  72     --- MINOR BUGFIXES ---
  73  * mdoc(7): Fix parsing of badly nested blocks with multiple identical blocks.
  74  * mdoc(7): Support negative indentations for displays and lists.
  75  * mdoc(7): Don't mistreat negative .sp arguments as large positive ones.
  76  * mdoc(7): Some spacing fixes for .Eo/.Ec.
  77  * man(7): Support negative horizontal widths.
  78  * man(7): Do not print out invalid .IP arguments.
  79  * man(7): Correctly handle scaling units after .PD.
  80  * man(7): Support .RE with an argument.
  81  * man(7): Fix restoring indentation after .RS with large negative arguments.
  82  * tbl(7): Prevent tables from breaking the filling of preceding text.
  83  * tbl(7): Fix vertical spacing at the beginning of tables.
  84  * tbl(7): Parser and formatter fixes for line drawing and font modifiers.
  85  * tbl(7): Correct handling of blank data lines.
  86  * eqn(7): Add sometimes missing whitespace before equation output.
  87  * roff(7): Fix vertical scaling, most of it was wrong.
  88  * roff(7): Slightly improve \w width measurements.
  89  * roff(7): Accept the historic aliases \s10 to \s39 for \s(10 to \s(39.
  90  * roff(7): Correctly escape quotes when expanding macro arguments.
  91  * roff(7): Correctly handle scaling units in numerical expressions,
  92    and some other improvements to the parsing of numerical expressions.
  93  * roff(7): Three minor fixes with respect to evaluation of conditionals.
  94  * roff(7): Let .it accept numerical expressions, not just constants.
  95  * mandoc_char(7): Correct some character names and renderings.
  96  * If earlier files set a non-zero exit status, never reset it to zero.
  97     --- THANKS TO ---
  98  * Jonathan Gray (OpenBSD) for yet more testing with afl (the American
  99    Fuzzy Lop security fuzzer), again resulting in many bug reports.
 100  * Theo de Raadt (OpenBSD) for suggesting the main new feature (man(1) file
 101    system lookup) and for reporting an important bug (pager without output).
 102  * Theo Buehler for an important bug report (-s/-S slowness)
 103    and for proposing a nice new feature (lines between pages).
 104  * Jason McIntyre for an important bug report (hardlink detection)
 105    and multiple documentation patches.
 106  * Pascal Stumpf (OpenBSD) and Alessandro de Laurenzis for
 107    important bug reports (architecture and man -m, respectively).
 108  * Thomas Klausner (NetBSD) for proposing a new feature (man(7) -Ios),
 109    a bug report, and release testing.
 110  * Anthony Bentley, Daniel Dickman, Ted Unangst (OpenBSD) and
 111    Kristaps Dzonsons (bsd.lv) for source code patches and bug reports.
 112  * Christian Weisgerber (OpenBSD) for more than half a dozen bug reports.
 113  * Carsten Kunze (Heirloom troff) for bug reports and release testing.
 114  * Antoine Jacoutot (OpenBSD) for release testing.
 115  * Alexis Hildebrandt (Homebrew), Baptiste Daroussin (FreeBSD),
 116    Jonathan Perkin (SmartOS), Pedro Giffuni (FreeBSD), Svyatoslav
 117    Mishyn (Crux Linux), Ulrich Spoerlein (FreeBSD), Jan Stary, Patrick
 118    Keshishian, Sebastien Marie, and Steffen Nurpmeso for bug reports.
 119
 120 Changes in version 1.13.2, released on December 13, 2014
 121
 122     --- MAJOR NEW FEATURES ---
 123  * Include an implementation of man(1), the manual page viewer.
 124  * Unified set of command line option, each one supported by all
 125    command names, including new options -a (format all), -c (no
 126    pager), -h (synopsis only), and -w (list filenames).
 127  * Support the MANPAGER and PAGER environment variables.
 128  * Support gzip'ed manuals by the whole toolset, even as .so targets.
 129  * Support UTF-8 and Latin-1 input by the whole toolset, delete preconv(1).
 130  * Switch the default output mode from -Tascii to -Tlocale.
 131  * Improve -Tascii output for Unicode escape sequences.
 132  * Let the -Thtml output mode produce polyglot HTML5.
 133  * Many improvements for eqn(7), in particular in-line equations,
 134    MathML output in -Thtml mode, and much improved terminal formatting.
 135     --- PORTABILITY IMPROVEMENTS ---
 136  * Change the build sequence to the usual ./configure; make; make install.
 137  * Support ./configure.local for build customizations.
 138  * Autodetect wchar, sqlite3, and manpath support.
 139  * Provide a fallback version of fts(3) for systems lacking it.
 140  * Support choosing alternative binary and manual names.
 141     --- MINOR NEW FEATURES ---
 142  * Rudimentary implementation of the e, x, and z tbl(7) layout
 143    modifiers to equalize, maximize, and ignore the width of columns.
 144  * Implement font modifiers in tbl(7) layouts.
 145  * Allow comma-separated options in the tbl(7) options line.
 146  * Parse and ignore the .pl (page length) roff(7) request.
 147  * Implement .An -[no]split for the mdoc(7) -Thtml output mode.
 148  * Support bold italic font in PostScript and PDF output.
 149  * Warn about commas in function arguments and parentheses in function names.
 150  * Warn about botched .Xr ordering and punctuation below SEE ALSO.
 151  * Warn about AUTHORS sections without .An macros.
 152  * Warn about attempts to call non-callable macros.
 153  * New developer documentation manual page mandoc_headers(3).
 154     --- BUGFIXES ---
 155  * Fix read buffer overrun sometimes triggered by trailing whitespace.
 156  * Fix read buffer overrun triggered by certain invalid \H sequences.
 157  * Fix NULL pointer access triggered by .Bl without any arguments.
 158  * Fix NULL pointer access triggered by .It Nm Fo without .Fc.
 159  * Fix NULL pointer access triggered by .Sh Xo .Sh without .Xc.
 160  * Fix NULL pointer access triggered by missing .Nm.
 161  * Fix an assertion triggered by .It right after .El.
 162  * Fix an assertion triggered by .Ec without preceding .Eo.
 163  * Fix an assertion triggered by .Sm or .Db with multiple arguments.
 164  * Fix assertion failures triggered by very large width arguments.
 165  * Fix a division by zero in the roff(7) parser.
 166  * Prevent negative arguments to .ll from causing integer underflow.
 167  * Correctly autodetect source format even when .Dd is preceded by .ll.
 168  * Multiple fixes with respect to .Bd and .Bl -offset and -width.
 169  * Many bugfixes with respect to scaling units.
 170  * Multiple fixes with respect to delimiter handling by in-line macros.
 171  * Multiple fixes with respect to .Pf.
 172  * Make \c work properly in no-fill mode.
 173  * Stricter syntax checking of Unicode character names.
 174     --- THANKS TO ---
 175  * Kristaps Dzonsons for rewriting the eqn(7) parser, implementing
 176    HTML5 and MathML output, and various other code contributions.
 177  * Jonathan Gray (OpenBSD) for extensive testing with afl (the
 178    American Fuzzy Lop security fuzzer) resulting in many bug reports.
 179  * Anthony Bentley (OpenBSD), Baptiste Daroussin (FreeBSD), Daniel
 180    Dickman, Doug Hogan, Jason McIntyre, Theo de Raadt (OpenBSD),
 181    and Martin Natano for source code patches.
 182  * Carsten Kunze (Heirloom troff), Daniel Levai (Slackware),
 183    Garrett D'Amore (illumos), Giovanni Becchis, Matthew Dempsky,
 184    Stuart Henderson, Ted Unangst, Todd Miller (OpenBSD), Thomas
 185    Klausner (NetBSD), Ulrich Spoerlein (FreeBSD), Justin Haynes,
 186    Marcus Merighi, Sebastien Marie, Steffen Nurpmeso and Theo Buehler
 187    for bug reports.
 188
 189 Changes in version 1.13.1, released on August 10, 2014
 190
 191     --- MAJOR NEW FEATURES ---
 192  * A complete apropos(1)/makewhatis(8)/man.cgi(8) suite
 193    based on SQLite3 is now included.
 194  * The roff(7) parser now provides an almost complete implementation
 195    of numerical expressions.
 196  * Warning and error messages have been improved in many ways.
 197    Almost all fatal errors were downgraded to normal errors and some
 198    even to warnings.  Almost all messages now mention the macro where
 199    the issue is detected and many indicate the workaround employed.
 200    The mandoc(1) manual now includes a list explaining all messages.
 201     --- MINOR NEW FEATURES ---
 202  * The roff(7) parser now supports the .ami (append to macro with
 203    indirectly specified name), .as (append to user-defined
 204    string), .dei (define macro with indirectly specified name),
 205    .ll (line length), and .rr (remove register) requests.
 206  * The roff(7) parser now supports string comparison and numerical
 207    conditionals in the .if and .ie requests.
 208  * The roff parser now fully supports the \B (validate numerical
 209    expression) and partially supports the \w (measure text width)
 210    escape sequences.
 211  * The terminal formatter now supports the \: (optional line break)
 212    escape sequence.
 213  * The roff parser now supports expansion of user-defined strings
 214    involving indirect references.
 215  * The roff(7) parser now handles some pre-defined read-only
 216    number registers that occur in the pod2man(1) preamble.
 217  * For backward compatibility, the mdoc(7) parser and formatters
 218    now support the obsolete macros .En, .Es, .Fr, and .Ot.
 219  * The mdoc(7) formatter non partially supports .Bd -centered.
 220  * tbl(7) now handles leading and trailing vertical lines.
 221  * The build system now provides fallback versions of strcasestr(3)
 222    and strsep(3) for systems lacking them.
 223  * The mdoc(7) manual now explains how various standards
 224    supported by the .St macro are related to each other.
 225     --- BUGFIXES ---
 226  * In the roff(7) parser, several bugs were fixed with respect
 227    to closing conditional blocks on macro lines.
 228  * Parsing of roff(7) identifiers and escape sequences was improved
 229    in multiple respects.
 230  * In the mdoc(7) parser, the handling of defective document
 231    prologues was improved in multiple ways.
 232  * The mdoc(7) parser no longer skips content before the first section
 233    header, and it no longer deletes non-.% content from .Rs blocks.
 234  * In the mdoc(7) parser, a crash was fixed related to weird .Sh headers.
 235  * In the mdoc(7) parser, handling of .Sm with missing or invalid
 236    arguments was corrected.
 237  * In the mdoc(7) parser, trailing punctuation at the end of partial
 238    implicit macros no longer triggers end-of-sentence spacing.
 239  * In the terminal formatter, two crashes were fixed: one triggered by
 240    excessive indentation and another by excessively long .Nm arguments.
 241  * In the terminal formatter, a floating point rounding bug was
 242    fixed that sometimes caused an off-by-one error in indentation.
 243  * In the UTF-8 formatter, rendering of accents, breakable hyphens,
 244    and non-breakable spaces was corrected.
 245  * In the HTML formatter, encoding of special characters was
 246    corrected in multiple respects.
 247  * In the mdoc(7) formatter, rendering of .Ex and .Rv was
 248    improved for various edge cases.
 249  * In the mdoc(7) formatter, handling of empty .Bl -inset item
 250    heads was improved.
 251  * In the man(7) formatter, some bugs were fixed with respect
 252    to same-line detection in the context of .TP and .nf macros,
 253    and the indentation of .IP and .TP blocks was improved.
 254  * The mandoc(3) library no longer prints to stderr.
 255     --- THANKS TO ---
 256    Abhinav Upadhyay (NetBSD), Andreas Voegele, Anthony Bentley (OpenBSD),
 257    Christian Weisgerber (OpenBSD), Havard Eidnes (NetBSD), Jan Stary,
 258    Jason McIntyre (OpenBSD), Jeremie Courreges-Anglas (OpenBSD),
 259    Joerg Sonnenberger (NetBSD), Juan Francisco Cantero Hurtado (OpenBSD),
 260    Marc Espie (OpenBSD), Matthias Scheler (NetBSD), Pascal Stumpf (OpenBSD),
 261    Paul Onyschuk (Alpine Linux), Sebastien Marie, Steffen Nurpmeso,
 262    Stuart Henderson (OpenBSD), Ted Unangst (OpenBSD), Theo de Raadt (OpenBSD),
 263    Thomas Klausner (NetBSD), and Ulrich Spoerlein (FreeBSD)
 264    for reporting bugs and missing features.
 265
 266 Changes in version 1.12.3, released on December 31, 2013
 267
 268  * In the mdoc(7) SYNOPSIS, line breaks and hanging indentation
 269    now work correctly for .Fo/.Fa/.Fc and .Fn blocks.
 270    Thanks to Franco Fichtner for doing part of the work.
 271  * The mdoc(7) .Bk macro got some addititonal bugfixes.
 272  * In mdoc(7) macro arguments, double quotes can now be quoted
 273    by doubling them, just like in man(7).
 274    Thanks to Tsugutomo ENAMI for the patch.
 275  * At the end of man(7) macro lines, end-of-sentence spacing
 276    now works.  Thanks to Franco Fichtner for the patch.
 277  * For backward compatibility, the man(7) parser now supports the
 278    man-ext .UR/.UE (uniform resource identifier) block macros.
 279  * The man(7) parser now handles closing blocks that are not open
 280    more gracefully.
 281  * The man(7) parser now ignores blank lines right after .SH and .SS.
 282  * In the man(7) formatter, reset indentation when leaving a block,
 283    not just when entering the next one.
 284  * The roff(7) .nr request now supports incrementing and decrementing
 285    number registers and stops parsing the number right before the
 286    first non-digit character.
 287  * The roff(7) parser now supports the alternative escape sequence
 288    syntax \C'uXXXX' for Unicode characters.
 289  * The roff(7) parser now parses and ignores the .fam (font family)
 290    and .hw (hyphenation points) requests and the \d and \u escape
 291    sequences.
 292  * The roff(7) manual got a new ESCAPE SEQUENCE REFERENCE.
 293
 294 Changes in version 1.12.2, released on Oktober 5, 2013
 295
 296  * The mdoc(7) to man(7) converter, to be called as mandoc -Tman,
 297    is now fully functional.
 298  * The mandoc(1) utility now supports the -Ios (default operating system)
 299    input option, and the -Tutf8 output mode now actually works.
 300  * The mandocdb(8) utility no longer truncates existing databases when
 301    starting to build new ones, but only replaces them when the build
 302    actually succeeds.
 303  * The man(7) parser now supports the PD macro (paragraph distance),
 304    and (for GNU man-ext compatibility only) EX (example block) and EE
 305    (example end).  Plus several bugfixes regarding indentation, line
 306    breaks, and vertical spacing, and regarding RS following TP.
 307  * The roff(7) parser now supports the \f(BI (bold+italic) font escape,
 308    the \z (zero cursor advance) escape and the cc (change control
 309    character) and it (input line trap) requests. Plus bugfixes regarding
 310    the \t (tab) escape, nested escape sequences, and conditional requests.
 311  * In mdoc(7), several bugs were fixed related to UTF-8 output of quoting
 312    enclosures, delimiter handling, list indentation and horizontal and
 313    vertical spacing, formatting of the Lk, %U, and %C macros, plus some
 314    bugfixes related to the handling of syntax errors like badly nested
 315    font blocks, stray Ta macros outside column lists, unterminated It Xo
 316    blocks, and non-text children of Nm blocks.
 317  * In tbl(7), the width of horizontal spans and the vertical spacing
 318    around tables was corrected, and in man(7) files, a crash was fixed
 319    that was triggered by some particular unclosed T{ macros.
 320  * For mandoc developers, we now provide a tbl(3) library manual and
 321    gmdiff, a very small, very simplistic groff-versus-mandoc output
 322    comparison tool.
 323  * Provide this NEWS file.
 324
 325 Changes in version 1.12.1, released on March 23, 2012
 326
 327  * Significant work on apropos(1) and mandocdb(8). These tools are now
 328    much more robust.  A whatis(1) implementation is now handled as an
 329    apropos(1) mode.  These tools are also able to minimally handle
 330    pre-formatted pages, that is, those already formatted by another
 331    utility such as GNU troff.
 332  * The man.cgi(7) script is also now available for wider testing.
 333    It interfaces with mandocdb(8) manuals cached by catman(8).
 334    HTML output is generated on-the-fly by libmandoc or internal
 335    methods to convert pre-formatted pages.
 336  * The mailing list archive for the discuss and tech lists are being
 337    hosted by Gmane at gmane.comp.tools.mdocml.user and
 338    gmane.comp.tools.mdocml.devel, respectively.
 339
 340 Changes in version 1.12.0, released on October 8, 2011
 341
 342  * This version features a new, work-in-progress mandoc(1) output mode:
 343    -Tman.  This mode allows a system maintainer to distribute man(7)
 344    media for older systems that may not natively support mdoc(7), such
 345    as old Solaris systems.
 346  * The -Ofragment option was added to mandoc(1)'s -Thtml and -Txhtml modes.
 347  * While adding features, an apropos(1) utility has been merged from the
 348    mandoc-tools sandbox.  This interfaces with mandocdb(8) for semantic
 349    search of manual content.  apropos(1) is different from the traditional
 350    apropos primarily in allowing keyword search (such as for functions,
 351    utilities, etc.) and regular expressions.  Note that the calling
 352    syntax for apropos is likely to change as it settles down.
 353  * In documentation news, the mdoc(7) and man(7) manuals have been
 354    made considerably more readable by adding MACRO OVERVIEW sections, by
 355    moving the gory details of the LANGUAGE SYNTAX to the roff(7) manual,
 356    and by moving the very technical MACRO SYNTAX sections down to the
 357    bottom of the page.
 358  * Furthermore, for tbl(7), the -Tascii mode horizontal spacing of tables
 359    was rewritten completely.  It is now compatible with groff(1), both
 360    with and without frames and rulers.
 361  * Nesting of indented blocks is now supported in man(7), and several
 362    bugs were fixed regarding indentation and alignment.
 363  * The page headers in mdoc(7) are now nicer for very long titles.
 364
 365 Changes in version 1.11.7, released on September 2, 2011
 366
 367  * Added demandoc(1) utility for stripping away macros and escapes.
 368    This replaces the historical deroff(1) utility.
 369  * Also improved the mdoc(7) and man(7) manuals.
 370
 371 Changes in version 1.11.6, released on August 16, 2011
 372
 373  * Handling of tr macro in roff(7) implemented.  This makes Perl
 374    documentation much more readable.  Hyphenation is also now enabled in
 375    man(7) format documents.  Many other general improvements have been
 376    implemented.
 377
 378 Changes in version 1.11.5, released on July 24, 2011
 379
 380  * Significant eqn(7) improvements.  mdocml can now parse arbitrary eqn
 381    input (although few GNU extensions are accepted, nor is mixing
 382    low-level roff with eqn).  See the eqn(7) manual for details.
 383    For the time being, equations are rendered as simple in-line text.
 384    The equation parser satisfies the language specified in the
 385    Second Edition User's Guide:
 386    http://www.kohala.com/start/troff/v7man/eqn/eqn2e.ps
 387
 388 Changes in version 1.11.4, released on July 12, 2011
 389
 390  * Bug-fixes and clean-ups across all systems, especially in mandocdb(8)
 391    and the man(7) parser.  This release was significantly assisted by
 392    participants in OpenBSD's c2k11.  Thanks!
 393
 394 Changes in version 1.11.3, released on May 26, 2011
 395
 396  * Introduce locale-encoding of output with the -Tlocale output option and
 397    Unicode escaped-character input.  See mandoc(1) and mandoc_char(7),
 398    respectively, for details.  This allows for non-ASCII characters (e.g.,
 399    \[u5000]) to be rendered in the locale's encoding, if said environment
 400    supports wide-character encoding (if it does not, -Tascii is used
 401    instead).  Locale support can be turned off at compile time by removing
 402    -DUSE_WCHAR in the Makefile, in which case -Tlocale is always a synonym
 403    for -Tascii.
 404  * Furthermore, multibyte-encoded documents, such as those in UTF-8, may
 405    be on-the-fly recoded into mandoc(1) input by using the newly-added
 406    preconv(1) utility.  Note: in the future, this feature may be
 407    integrated into mandoc(1).
 408
 409 Changes in version 1.11.2, released on May 12, 2011
 410
 411  * Corrected some installation issues in version 1.11.1.
 412  * Further migration to libmandoc.
 413  * Initial public release (this utility is very much under development)
 414    of mandocdb(8).  This utility produces keyword databases of manual
 415    content, which features semantic querying of manual content.
 416
 417 Changes in version 1.11.1, released on April 4, 2011
 418
 419  * The earlier libroff, libmdoc, and libman soup have been merged into
 420    a single library, libmandoc, which manages all aspects of parsing
 421    real manuals, from line-handling to tbl(7) parsing.
 422  * As usual, many general fixes and improvements have also occurred.
 423    In particular, a great deal of redundancy and superfluous code has
 424    been removed with the merging of the backend libraries.
 425  * see also the changes in 1.10.10
 426
 427 Changes in version 1.10.10, March 20, 2011, NOT released
 428
 429  * Initial eqn(7) functionality is in place.  For the time being,
 430    this is limited to the recognition of equation blocks;
 431    future version of mdocml will expand upon this framework.
 432
 433 Changes in version 1.10.9, released on January 7, 2011
 434
 435  * Many back-end fixes have been implemented: argument handling (quoting),
 436    man(7) improvements, error/warning classes, and many more.
 437  * Initial tbl(7) functionality (see the "TS", "TE", and "T&" macros in
 438    the roff(7) manual) has been merged from tbl.bsd.lv.  Output is still
 439    minimal, especially for -Thtml and -Txhtml, but manages to at least
 440    display data.  This means that mandoc(1) now has built-in support
 441    for two troff preprocessors via libroff: soelim(1) and tbl(1).
 442
 443 Changes in version 1.10.8, released on December 24, 2010
 444
 445  * Overhauled the -Thtml and -Txhtml output modes.  They now display
 446    readable output in arbitrary browsers, including text-based ones like
 447    lynx(1).  See HTML and XHTML manuals in the DOCUMENTATION section
 448    for examples.  Attention: available style-sheet classes have been
 449    considerably changed!  See the example.style.css file for details.
 450    Lastly, libmdoc and libman have been cleaned up and reduced in size
 451    and complexity.
 452  * see also the changes in 1.10.7
 453
 454 Changes in version 1.10.7, December 6, 2010, NOT released
 455
 456  Significant improvements merged from OpenBSD downstream, including:
 457  * many new roff(7) components,
 458  * in-line implementation of troff's soelim(1),
 459  * broken-block handling,
 460  * overhauled error classifications, and
 461  * cleaned up handling of error conditions.
 462
 463 Changes in version 1.10.6, released on September 27, 2010
 464
 465  * Calling conventions for mandoc(1) have changed: -W improved and -f
 466    deprecated.
 467  * Non-ASCII characters are also now uniformly discarded.
 468  * Lots of documentation improvements.
 469  * Many incremental fixes accomodating for groff's more interesting
 470    productions.
 471  * Lastly, pod2man(1) preambles are now fully accepted after some
 472    considerable roff(7) and special character support.
 473
 474 Changes in version 1.10.5, released on July 27, 2010
 475
 476  * Primarily a bug-fix and polish release, but including -Tpdf support
 477    in mandoc(1) by way of "Summer of Code".  Highlights:
 478  * fix "Sm" and "Bd" handling
 479  * fix end-of-sentence handling for embedded sentences
 480  * polish man(7) documentation
 481  * document all mdoc(7) macros
 482  * polish mandoc(1) -Tps output
 483  * lots of internal clean-ups in character escapes
 484  * un-break literal contexts in man(7) documents
 485  * improve -Thtml output for -man
 486  * add mandoc(1) -Tpdf support
 487
 488 Changes in version 1.10.4, released on July 12, 2010
 489
 490  * Lots of features developed during both "Summer of Code" and the
 491    OpenBSD c2k10 hackathon:
 492  * minimal "ds" roff(7) symbols are supported
 493  * beautified SYNOPSIS section output
 494  * acceptance of scope-block breakage in mdoc(7)
 495  * clarify error message status
 496  * many minor bug-fixes and formatting issues resolved
 497  * see also changes in 1.10.3
 498
 499 Changes in version 1.10.3, June 29, 2010, NOT released
 500
 501  * variable font-width and paper-size support in mandoc(1) -Tps output
 502  * "Bk" mdoc(7) support
 503
 504 Changes in version 1.10.2, released on June 19, 2010
 505
 506  * Small release featuring text-decoration in -Tps output,
 507    a few minor relaxations of errors, and some optimisations.
 508
 509 Changes in version 1.10.1, released on June 7, 2010
 510
 511  * This primarily focusses on the "Bl" and "It" macros described in
 512    mdoc(7).  Multi-line column support is now fully compatible with groff,
 513    as are implicit list entries for columns.
 514  * Removed manuals(7) in favour of http://manpages.bsd.lv.
 515  * The way we handle the SYNOPSIS section (see the SYNOPSIS documentation
 516    in MANUAL STRUCTURE) has also been considerably simplified compared
 517    to groff's method.
 518  * Furthermore, the -Owidth=width output option has been added to -Tascii,
 519    see mandoc(1).
 520  * Lastly, initial PostScript output has been added with the -Tps option
 521    to mandoc(1).  It's brutally simple at the moment: fixed-font, with no
 522    font decorations.
 523
 524 Changes in version 1.10.0, released on May 29, 2010
 525
 526  * Release consisting of the results from the m2k10 hackathon and up-merge
 527    from OpenBSD.  This requires a significant note of thanks to Ingo
 528    Schwarze (OpenBSD) and Joerg Sonnenberger (NetBSD) for their hard work,
 529    and again to Joerg for hosting m2k10.  Highlights (mostly cribbed from
 530    Ingo's m2k10 report) follow in no particular order:
 531  * a libroff preprocessor in front of libmdoc and libman stripping out
 532    roff(7) instructions;
 533  * end-of-sentence (EOS) detection in free-form and macro lines;
 534  * correct handling of tab-separated columnar lists in mdoc(7);
 535  * improved main calling routines to optionally use mmap(3) for better
 536    performance;
 537  * cleaned up exiting when invoked as -Tlint or over multiple files
 538    with -fign-errors;
 539  * error and warning message handling re-written to be unified for
 540    libroff, libmdoc, and libman;
 541  * handling of badly-nested explicit-scoped macros;
 542  * improved free-form text parsing in libman and libmdoc;
 543  * significant GNU troff compatibility improvements in -Tascii,
 544    largely in terms of spacing;
 545  * a regression framework for making sure the many fragilities of GNU
 546    troff aren't trampled in subsequent work;
 547  * support for -Tascii breaking at hyphens encountered in free-form text;
 548  * and many more minor fixes and improvements
 549
 550 Changes in version 1.9.25, released on May 13, 2010
 551
 552  * Fixed handling of "\*(Ba" escape.
 553  * Backed out -fno-ign-chars (pointless complexity).
 554  * Fixed erroneous breaking of literal lines.
 555  * Fixed SYNOPSIS breaking lines before non-initial macros.
 556  * Changed default section ordering.
 557  * Most importantly, the framework for end-of-sentence double-spacing is
 558    in place, now implemented for the "end-of-sentence, end-of-line" rule.
 559  * This is a stable roll-back point before the mandoc hackathon in Rostock!
 560
 561 Changes in version 1.9.24, released on May 9, 2010
 562
 563  * Rolled back break-at-hyphen.
 564  * -DUGLY is now the default (no feature splits!).
 565  * Free-form text is not de-chunked any more: lines are passed
 566    whole-sale into the front-end, including whitespace.
 567  * Added mailing lists.
 568
 569 Changes in version 1.9.23, released on April 7, 2010
 570
 571  * mdocml has been linked to the OpenBSD build.
 572  * This version incorporates many small changes, mostly from patches
 573    by OpenBSD, allowing crufty manuals to slip by with warnings instead
 574    of erroring-out.
 575  * Some subtle semantic issues, such as punctuation scope, have also
 576    been fixed.
 577  * Lastly, some issues with -Thtml have been fixed, which prompted an
 578    update to the online manual pages style layout.
 579
 580 Changes in version 1.9.22, released on March 31, 2010
 581
 582  * Adjusted merge of the significant work by Ingo Schwarze
 583    in getting "Xo" blocks (block full implicit, e.g., "It"
 584    for non-columnar lists) to work properly.  This isn't
 585    enabled by default: you must specify -DUGLY as a compiler
 586    flag (see the Makefile for details).
 587
 588 Changes in version 1.9.20, released on March 30, 2010
 589
 590  * More efforts to get roff instructions in man(7) documents under
 591    control.  Note that roff instructions embedded in line-scoped,
 592    next-line macros (e.g. "B") are not supported.
 593  * Leading punctuation for mdoc(7) macros, such as "Fl ( ( a",
 594    are now correctly handled.
 595
 596 Changes in version 1.9.18, released on March 27, 2010
 597
 598  * Many fixes (largely pertaining to scope)
 599    and improvements (e.g., handling of apostrophe-control macros,
 600    which fixes the strange "BR" seen in some macro output)
 601    to handling roff instructions in man(7) documents.
 602
 603 Changes in version 1.9.17, released on March 25, 2010
 604
 605  * Accept perlpod(1) standard preamble.
 606  * Also accept (and discard) "de", "dei", "am", "ami", and "ig"
 607    roff macro blocks.
 608
 609 Changes in version 1.9.16, released on March 22, 2010
 610
 611  * Inspired by patches and bug reports by Ingo Schwarze,
 612    allowed man(7) to accept non-printing elements to be nested
 613    within next-line scopes, such as "br" within "B" or "TH",
 614    which is valid roff.
 615  * Longsoon architecture also noted and Makefile cleaned up.
 616
 617 Changes in version 1.9.15, released on February 18, 2010
 618
 619  * Moved to our new BSD.lv home.
 620  * XHTML is now an acceptable output mode for mandoc(1);
 621  * "Xr" made more compatible with groff;
 622  * "Vt" fixed when invoked in SYNOPSIS;
 623  * "\\" escape removed;
 624  * end-of-line white-space detected for all lines;
 625  * subtle bug fixed in list display for some modes;
 626  * compatibility layer checked in for compilation in diverse
 627    UNIX systems;
 628  * and column lengths handled correctly.
 629
 630 For older releases, see the ChangeLog files
 631 in http://mdocml.bsd.lv/snapshots/ .