TinyMUX 2.7:  CHANGES
Last Update:  December 2009

Major changes that may affect performance and require softcode tweaks:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 -- Added mux_string and fixed many functions including EDIT(),
    EXTRACT(), REVERSE(), SQUISH(), WORDPOS(), and DELETE() (Issues
    14, 25, 52, 98, 100, and 232). Thanks Jake and Alierak.
 -- Added Unicode support with the database using UTF-8 and
    supporting ASCII, ISO 8859-1, and UTF-8 clients.  Earlier mail,
    comsys, and flatfiles versions are converted.
 -- NOACCENTS flag renamed to ASCII and used to force an ASCII
    encoding for clients which do not properly negotiate or
    alternatively, out of preference.
 -- UNICODE flag added to force a UTF-8 encoding for clients which
    support UTF-8 but do not negotiate it.
 -- Added CHARSET and NEW-ENVIRON telnet negotiations which may affect
    clients.
 -- Add SSL encryption support including ssl_certificate_file,
    port_ssl, ssl_certificate_key, and ssl_certificate_password
    configuration options.  This is enabled with --enable-ssl.
 -- Add Telnet option STARTTLS to support secure connections.
    This is enabled with --enable-ssl.
 -- Added infrastructure for dynamically-loadable modules that can be
    provided by netmux, loaded by netmux, provided by a separate
    slavestub, or loaded by slavestub.


Feature Additions:
~~~~~~~~~~~~~~~~~
 -- Support optional action list with @break.  Add corresponding
    @assert command. (Issue 36).
 -- Help files support PennMUSH-style multiple topics for each help
    entry; consecutive &FOO lines refer to the same content
    (Issue 238).  Thanks Alierak.
 -- Added LPAD(), CPAD(), and RPAD() functions to duplicate previous
    non-truncating LJUST(), CENTER(), and RJUST() functionality
    (Issue 13).  Thanks Jake.
 -- Added /delete switch to @function and allow removal of
    user-defined functions (Issue 250).  Thanks Jake.
 -- Added fifth, sort-type argument to SETINTER(), SETUNION(), and
    SETDIFF() (Issue 3).
 -- Added @comjoin, @comleave, @comon, and @comoff for use with
    channel objects.  Each evaluates to a message shown to the channel
    member at the corresponding event (Issue 9).
 -- Added TR() function to allow transforming strings according to a
    specified pattern (Issue 262). Thanks Jake.
 -- REVWORDS() now accepts multi-character input and output delimiters
    (Issue 21). Thanks Jake.
 -- Use mux_string in SCRAMBLE() and SECURE() to avoid stripping ANSI.
 -- Added PennMUSH-compatible TERMINFO() to allow softcode access to
    the client's capabilities.
 -- Separated inline SQL supprt from Firan support so that it can be
    enabled separately.
 -- Feature complete for UTF-8 string layer.
 -- Turned on private use code points for Tengwar and Klingon even
    though these code point assignments are not official.
 -- Added @eval command.
 -- Support Unicode in filenames on Unix and Win32.
 -- Allow @hook to work on exits, enter aliases, and leave aliases.
    (Issue 235)
 -- Provide CLog module interface from netmux.
 -- Pass log file sub-direction, LOGDIR, option in mux.config (and
    muxconfig.vbs) through as a command-line option.
 -- Add pOuterUnknown parameter to CreateInstance to allow aggregation
    to be used later. The proxy for marshalling appears to require it.
 -- Add moniker (%k) substitution (Issue 350).
 -- Add config option for initial parents (Issue 48).
 -- Add restarttime(), restartsecs(), and restarts() (Issue 346).
 -- Add channel timestamps (Issue 20).
 -- Add @clist/full pattern matching (Issue 53).
 -- Add destroy() side-effect function (Issue 19).
 -- Add multi-whisper and last whisper (Issue 18 and 28).
 -- Sort @malias/list.
 -- Add third argument to tel() (Issue 153).
 -- Add @folder and update @mail/list for mail folders (Issue 256).
 -- Add CServerEventsSource, IServerEventsControl, and
    IServerEventsSink so modules can catch server events.
 -- Add crash_message configuration option (Issue 223).
 -- Add channel @saystring and @speechmod (Issue 67).
 -- Add lastcreate() per Issue #187.
 -- Add @adestroy per Issue #34.
 -- Add name references -- @reference per Issue 202.
 -- Add @aparent per Issue #17.
 -- Add @acreate per Issue #389.
 -- Add @list modules.
 -- Add module configuration option.
 -- Add help_executor configuration option per Issue #31.
 -- Increase maximum comsys alias length from 5 to 15.
 -- Add CQueryServer, CQueryClient, IQueryControl, and IQuerySink to
    support AsyncSQL.
 -- Add more library and module checking to libmux.
 -- Add mux_UnmarshalInterface() call to libmux.
 -- Add ShutdownSlave method to ISlaveControl.
 -- Add sqlslave and sqlproxy modules for AsyncSQL.
 -- Add chanobj() per issue 401.
 -- Add function_name configuration option to rename hardcoded
    functions.
 -- Add @hook/args to allow arguments to be hooked.
 -- Extend %=<> subtitution to take integer values which allow
    softcode access to all 100 arguments.
 -- Add %+ substitution to return number of arguments.
 -- Allow @notify/all/quiet (Issue 427).
 -- Add wipe() (Issue 421).
 -- Do not display MOTD/WIZMOTD unless @motd/@wizmotd is set.
 -- Add support for BINARY telnet option.
 -- Accept U+201C as the Unicode version of double quote command.
 -- Add dark and hidden permissions to flag_access parameter to make
    the flag #1 viewable or wizard-only, respectively.
 -- Update dbpuller to recognize raw ANSI sequences and raw color code
    points and turn into %x-subsitutions.
 -- Add @query, rserror(), rsnext(), rsprev(), rsrelease(), rsrec(),
    rsrecnext(), rsrecprev(), and rsrows() to provide access to
    asyncronous SQL.
 -- Add attr_name_charset, exit_name_charset, player_name_charset,
    thing_name_charset, and room_name_charset to optionally restrict
    the corresponding names to subsets of Unicode.
 -- Add VisibleLock (Issue 332).
 -- Add substitution (%i) equivalent to itext().
 -- Ignore leading and trailing spaces in parse_dbref() (Issue 451).
 -- Allow ISO 8859-2 accented letters in attribute names, object
    names, and player names.
 -- Add iso8559-2 and latin-2 charset restrictions.
 -- Convert vertical quotes to directional quotes and hyphen drawing
    to en dashes (Issue 473).
 -- Update Unicode tables.
 -- Expose mailsubj() and mailsize() in the stock build.


Bug Fixes:
~~~~~~~~~
 -- INFO should show 'Patches' or 'INFO 1', but not both (Issue 236).
 -- @dolist and @trig were not passing TRACE bit through (Issue 237).
 -- Using \ as a shortcut to @emit no longer causes the beginning of
    the message to be escaped (Issue 219).  Thanks Alierak.
 -- @verb/no_name used unterminated verb_sw table (Issued 243).
    Thanks Jake.
 -- Guest objects left DARK through announcement code (Issue 244).
 -- @wall evaluated a speechmod before processing the message
    (Issue 16).  Thanks Jake.
 -- @wall's switches did not interact properly (Issue 30).  Thanks
    Jake.
 -- Corrected error messages for failed guest logins (Issue 246).
 -- @function did not strip ansi from or properly truncate
    user-defined function names. (Issue 249).  Thanks Jake.
 -- Fix typo in do_say() which left a bit-wise instead of a logical
    AND operation (Issue 245).
 -- Fix SORT(2 100) --> '100 2' bug introduced in 2.7.0.1 (Issue 251).
 -- Fix trailing padding in CENTER() (Issue 253).
 -- mid(abc,-1,2) now returns a, not ab. mid(abc,1,-2) now returns
    ab, not a.  This is the documented behavior.
 -- wordpos() did not strip ansi before counting characters.
 -- Fix signed / unsigned warning in dump_info() (Issue 276).
 -- Corrected minor typo in @comon section of help.txt. (Issue 275)
 -- Restore newline skipping in wrap(), broken in 2.7.0.2 (Issue 278).
 -- Fix potential buffer overflow in ladd() (Issue 282). Thanks Jake.
 -- Use %p printf format for pointer to avoid compiler warning about
    truncating a potentially 64-bit quantity.
 -- Restore newline skipping in wrap(), broken in 2.7.0.2 (Issue 278).
 -- Fix line-duplication bug in wrap(), broken in 2.7.0.2 (Issue 286).
 -- Fix tab expansion in wrap().
 -- Fixed memory leak in scheduler because of running out of memory.
 -- Fixed non-player object's ability to hold coins.
 -- Fixed loading of coins from flatfile (i.e., across @restart for
    memory-based) (Issue 224).
 -- Fix Firan build break in fun_trigger() (Issue 288).
 -- Fixed +glance softcode in SGP minimal database (Issue 291).
 -- Fix memory leak in @mail error code path.
 -- Fix memory leak in process_cmdent().
 -- Allow Intel's EMT64 compiler to build the sources (Issue 308).
 -- Fix 'think [search(eval=hasattr(##,foo))]' by clearing the []-ness
    from causing mux_exec() to complain about 'eval=hasattr()' not
    being a function.
 -- v3 comtitles were not being converted to v4 color code points.
 -- Fix type-punning bug in mux_fpclass() that broke when compiled
    with gcc 4.1 or later with -O2 (which turns on -fstrict-aliasing)
    (Issue 322).
 -- Fix hang in MUNGE() if given zero words (Issues 324).
 -- Fix output bug in lflags, where no space was output between the
    first two flag names. (Issue 323)
 -- Fix various @restart scenarios between SSL and non-SSL and from
    2.6 to 2.7.
 -- Rework SSL/TLS engine to use a TLS-specific context for STARTTLS,
    rather than reusing the SSLv3 context.
 -- Properly terminate uses of mux_exec().  Most of these are
    protected by EV_TOP or something else.
 -- Attempt to make modules work on OS X (Darwin).
 -- CLogFile::AppendLog() does not actually position log at end of
    existing log file. Net result is only that first two lines
    (Containing to INI/LOAD entries) are lost.
 -- ConvertToUTF8() converted code points above 0x10000 incorrectly.
 -- Allow %=<name> to support single-letter attribute names and
    document. Issue 341.
 -- Fix escape() which used #92 instead of backslash (Issue 353).
 -- Fix WIDTH() to default to 78 instead of 24 (Issue 354).
 -- Open permissions on WIDTH() and HEIGHT() (Issue 356).
 -- Fix special characters in names with @decompile (Issue 292).
 -- Add no_name to HASFLAG() list (Issue 360).
 -- Fix the attribute flag names returned by lflags() (Issue 362).
 -- Add missing attribute flag names to @set2 topic (Issue 361).
 -- Fix LOG_DIR across @restarts (Issue 46).
 -- Drop dependency on QueryPerformanceCounter() (Issue 369).
 -- Fix channel timestamps (Issue 370).
 -- The flag_access configuration handler would SIGSEGV if a flagname
    was given without a list of permissions.
 -- The power_alias and flag_alias configuration handlers would
    SIGSEGV if flagname and alias were not both given.
 -- Fix 2.7 regression in command/argument splitting in do_command
    for logged out commands.
 -- Fix conversion of ANSI sequences containing semi-colons.
 -- Use moniker in did_it() to show moniker with osucc and odrop.
 -- Fix corruption issue with MakeCanonicalExitName() using UTF-8.
 -- Fix unchecked malloc() in SendSb().
 -- Object type of guest wiped with type from guest_char (Issue 390).
 -- Fix out-of-bounds array access while updating newobjs (Issue 396).
 -- Fixed endless loop in mux_string::transform() via tr().
 -- Fix regression from Issue 219 so that '; test' produces
    '<name> test' (Issue 351).
 -- Fix --enable-deprecated build (Issue 397).
 -- Pass reality level descriptions through @descformat (Issue 59).
 -- Fix regression (r1355) which allowed an endless loop (Issue 403).
 -- Fix buffer overflow with %=<> substitution (Issue 406).
 -- Fix TR() to support UTF-8 sequences (Issue 305).
 -- @notify/quiet behaved like @notify/all (Issue 426).  Reported by
    Barton.
 -- Fix bug in mux_string::replace_Char() that left some color state
    uninitialized (Issue 424).  Reported by Loki.
 -- Fix comma handling in SGP places code for join, ojoin, depart, and
    odepart (Issue 391).
 -- Change all notify() to raw_notify() in mail.cpp (Issue 314).
 -- Remove references to unimplemented wiz_always_real (Issue 398).
 -- grepi() failed to find patterns composed of both upper-case and
    lower-case versions of the same letter (Issue 425).
 -- @notify/quiet behaved like @notify/all (Issue 426).
 -- Fix @name to handle re-@naming between different UTF-8 cases
    (Issue 333).
 -- Fix off-by-one error in whisper (Issue 436).
 -- Improve ValidateConfigurationDbrefs() to prevent
    player_starting_room and similar dbref configuration options from
    refering to NOTHING (Issue 441).
 -- TruncateToBuffer() mis-handled trailing color (Issue 444).
 -- Enable UTF-8 regular expressions in PCRE.
 -- ListMailInFolder() improperly handled the default folder.
 -- Handle unsupported flatfile versions more gracefully.
 -- Merge() compared byte length instead of code point count
    (Issue 448).
 -- %va was truncating UTF-8 sequences improperly (Issue 450).
 -- The decision to truncate in replace_Chars() should be made on
    bytes alone.
 -- Fix translate to not translate isolated spaces to %b (Issue 452).
 -- Update secure() and escape() help topic to agree with
    implementation.
 -- Fix escape()'s Unicode behavior.
 -- : followed by space to behave like semipose.
 -- Fix ordering in do_pemit_whisper (Issue 454).
 -- Fix v() so that v(10) through v(99) works like %=<10> through
    %=<99>.
 -- Fix interaction between @notify and @destroy (Issue 435).
 -- Fix two lbuf leaks in channel @saystring and @speechmod.
 -- Free lbuf allocated in do_pemit_whisper() (Issue 471).
 -- Fix that 'player_name_spaces no' would not validate any player
    name.
 -- Fix AUDIBLE with @prefix where color from @prefix appeared
    elsewhere (Issue 470).
 -- Fixed VC2005 build warnings that an inner definition was hiding
    an outer one in TruncateToBuffer().
 -- Add try/catch around throwing new in fun_scramble(),
    fun_shuffle(), linewrap_general(), fun_before(), fun_after(),
    fun_escape(), fun_secure(), fun_remove(), fun_insert(),
    fun_lpos(), and fun_shuffle().
 -- Fix new/delete bug in linewrap_general() introduced in 2.7.1.18.
 -- @email and sql no longer require --enable-firanmux.  SQL can be
    turned on with --enable-inlinesql or --enable-stubslave.
 -- Add try/catch around throwing new in fun_columns(), fun_strtrunc(),
    fun_elements(), fun_pickrand(), fun_last(), fun_foreach(),
    fun_extract, fun_revwords(), fun_trim, fun_strip(),
    transform_range().
 -- Fix handling of folder name upper-casing (Issue 416).
 -- Fix several problems with @reference (Issue 491).
 -- Add 'page ...=: ...' case.
 -- Help does not match behavior of mail(<player>, <number>)
    (Issue 477).
 -- Fixed SIGSEGV crashing bug in edit() (Issue 493).
 -- Fix buffer overwrite bug in eval.cpp (Issue 495).
 -- Remove incorrect return path from MakeCanonicalExitName().
 -- Allow color in first exit segment even if exit_name_charset is
    ASCII (Issue 497).
 -- The terminfo() topic described permissions incompletely.
 -- @alias doesn't allow case-only changes (Issue 500).
 -- Fix typo in orflags() topic (Issue 504).
 -- Fix parser's handling of open curly braces (Issue 506).
 -- Test MEMALLOC() return value in mguests.cpp (Issue 505).
 -- Updated the rsrec, rsrecnext and rsrecprev helpfiles to mention
    delimiters.  Updated the SQL file to cover both inline and
    stubslave SQL.
 -- Down-convert double-quotes and single-quotes to ASCII vertical
    quotes (Issue 508).
 -- Make trigger() act like @trigger/quiet (Issue 507).
 -- Eliminate cases of uninitialized Color States (Issue 511).
 -- Fix whisper to cause error messages to preceed other
    notifications (Issue 456).
 -- Whisper with no message or recipients (Issue 510).
 -- Exits could be teleported to JUMP_OK locations (Issue 518).
 -- Fix warning about possible uninitialized variable.
 -- In a (Copy, Move), if we are trimming a Copy down, the Move should
    be zero. We were writing beyond the end of the buffer (Issue 517).
 -- @toad wasn't deleting the right name.
 -- Fix @name and @alias to prevent them from stepping on each other's
    names (Issue 516).
 -- Fix comlist command to show all of longest possible alias.
 -- Fix %i from reaching beyond buffer.
 -- Fix crashbug in sqlslave module when MySQL returns NULL pointer in
    field.
 -- Fix edge case in ljust(), center(), lpad(), and cpad() (Issue 527).
 -- Fix remaining open issues with merge() (Issue 447, 449).
 -- Fix @pemit (and friends) to remove duplicates matches (Issue 499).
 -- Fix wrap() from leaving a leading space on second line (Issue 479).
 -- Fix isword() to accept a single %b (Issue 532).
 -- Fix wrap() from advancing over first letter in line (Issue 533).
 -- Set MYSQL_OPT_RECONNECT and MYSQL_SET_CHARSET_NAME options.
 -- Fix ./configure --with-mysql-libs and --with-mysql-include
    interaction --enable-stubslave on FreeBSD.
 -- Fix case of edit() leaving ColorState uninitialized (Issue 537).
 -- Change m_database to mush_database to fix broken
    --enable-inlinesql build.
 -- Fix padding in SHA1_Final() for data 9 bytes shorter than a
    multiple of 64 (Issue 544).
 -- Fix test cases affected by Issue 544.
 -- Fix color regression from 2.6 that affects ljust(), rjust(), and
    center() (Issue 541).
 -- A notify() call should be raw_notify() instead.
 -- Don't strip MSG_SAYPOSE or MSG_OOC when forwarding messages to
    contents, exits, etc.
 -- Remove UTF-8 color codepoints from @hook report as
    printf("%-30.30s") leaves this misaligned.
 -- Revert @hook report back to 2.6 appearance.
 -- Fix @mail folders (Issue 560).
 -- Option table was defined one element too large.
 -- On 64-bit FreeBSD, '@list process' showed negative values.
 -- Fix use of unitialized memory in mux_strlwr(), mux_strupr(), and
    mux_foldpunc() (Issue 562).
 -- Started fixing Issue 555 by including punctuation-folding tables.
 -- Visible Lock not treated as such by lock() and elock()
    (Issue 570).
 -- Add boundary to avoid crash with v(-1) (Issue 580).
 -- In CONFIGURATION readme, use starting_pay and find_money_chance
    instead of paystart and payfind (Issue #589).
 -- Fix wild1() to handle ? with Color and Unicode (Issue 590).
 -- Fix @dolist help topic (Issue 593).
 -- Removed run-time dependency on libguide40.dll (Issue 594).
 -- Fix behavior of insert(,1,Apple,|) (Issue #598).
 -- Change reference to no_program which should be no_command.
 -- Topic reference should be to 'regexp syntax'.
 -- Fix typo in substitutions3 (Issue 605).
 -- Fix typoe on help @lock compound (Issue 606).
 -- Non-player objects can own channels (Issue 565).
 -- ./Backup script didn't work on OS X (Issue 604).
 -- Clarify use of see_all @power (Issue 584).
 -- Fix one case of #elif without a condition.
 -- Look for MySQL in /usr/local if it isn't found elsewhere (Issue 612).
 -- Throttle use of @reference (Issue 587).


Performance Enhancements:
~~~~~~~~~~~~~~~~~~~~~~~~
 -- Help entries use less memory (specific improvements described in
    Issue 238 comments).  Thanks Alierak.
 -- MUNGE() translates results through a hash table instead of
    repeated linear searching (Issue 247).  Thanks Alierak and Ian.
 -- VMAG(), VUNIT, and SHUFFLE() only need LBUF_SIZE/2 elements
    instead of LBUF_SIZE elements.
 -- Prepending a single char to a mux_string no longer copies the
    string twice (Issue 281).
 -- Make mux_exec() not check function names that are too long to be
    valid.
 -- Prepending a single char to a mux_string no longer copies the
    string twice (Issue 281).
 -- Make parse_arglist_lite() and mux_exec() non-destructive.
 -- Make mux_exec() take a char *pdstr instead of char **dstr.
 -- Various things made const and/or consolidated.
 -- Merge fun_wrap and linewrap_general.
 -- Update sortby algorithm to minimize comparisons (Issue 22).
 -- Improve speed of TruncateToBuffer (Issue 433).
 -- Don't bother constructing message for forward list if there's no
    forward list to send it to.


Cosmetic Changes:
~~~~~~~~~~~~~~~~
 -- Added Doxygen file headers (Issue 102).
 -- Prepend channel header to comsys recall lines (Issue 335).
 -- Re-work DISTRIBUTIONS read-me.
 -- Add latin-1 and iso8859-1 names to charset configs.  Document
    default.
 -- Fix typo in atan() help topic.
 -- Flag letter 'z' should be OPEN_OK.
 -- The examples for WIDTH() and HEIGHT() are for 'say' instead of
   'think'.


Miscellaneous:
~~~~~~~~~~~~~
 -- Documented Lbufref and Regref pools in 'wizhelp @list alloc'.
    Thanks Alierak.
 -- Documented use of a single backslash as a proper shortcut to
    @emit (Issue 219).  Thanks Alierak.
 -- Removed unnecessary global pos variable from help.cpp (Issue 265).
 -- Fixed dangling reference to 'help @version' (Issue 277).
 -- Corrected documentation of E() and PI() to reflect actual
    precision (Issue 283).  Thanks Jake.
 -- Document @restart dropping SSL connections up front.
 -- Document report and move into walkdb.cpp (Issue 293).
 -- Raised the default function invocation limit to 25,000 and the
    default function recursion limit to 500 (Issue 357).
 -- Add alias @haven for @reject.
 -- Update inzone and zwho help topic.
 -- Update list of supported platforms.
 -- Updated @teleport help topic.
 -- Updated fdepth() help topic.
 -- Updated graball() help topic.
 -- Updated if()/ifelse() help topic.
 -- Updated report help topic.
 -- Updated @comon help topic.
 -- Rework autoconf.h, configure.ac, Makefile.in, and friends.
 -- Provide at least some level of help under set() for usage rather
    than only refering them to @set.
 -- Document ancient pose and semipose behavior involving initial
    spaces.
 -- Document %=<> addition in SUBSTITUTIONS and V() topics.
 -- Fix VS 2005 /analyze warnings.
 -- Fix warnings from gcc 4.2.3 with -Wall.
 -- Remove ROBBERY topic.
 -- Combine iter() and parse() help topics since they are the same.
 -- Move parse() to alias.conf.
 -- Compact code in fun_shuffle().
 -- Approximately re-balance decision tree for percent substitutions.
 -- Fix false positive warning from VS2005 in pow5mult().
 -- Fix false positive warning from VS2005 in Balloc().
 -- Add condition for size of small buffer to supress false positive
    VS2005 warning in ItemToList_AddInteger().
 -- Add condition for size of small buffer to supress false positive
    VS2005 warning in ItemToList_AddInteger64().
 -- Supress false positive VS2005 warning in mux_words::set_Control().
 -- Fix false positive VS2005 warning in mux_string::strip().
 -- Fix false positive VS2005 warning in do_joinchannel() and let it
    return Out of Memory to enactor failing the join request gracefully.
 -- Update VS project dependencies.
 -- Add regmatchi() topic.
 -- Remove unused use_http configuration option.
 -- Consolidate error message reporting for @pemit/list (Issue 363).
 -- Switch to using Visual Studio 2003 and Intel Compiler v10.1.
 -- Fix build issues within Cygwin.
 -- Add SHA-1 test vectors.
 -- Update dependencies used by .mak files.
 -- Firan is now using 24000-byte buffers.
 -- Include iso8859-2 value to three other affected configuration
    options.
 -- Most of charset_nametab[] options are not unique in the first five
    characters.
 -- Remove dead code from mux_string class.