Version history of X11-Basic
============================

In the beginning there were absurd plans, long sleepless nights, and incredible
boredom.

Very First Version (1990)
--------------------------
It was a Mailbox-Program with Basic features (only character-Graphics with
Vt100EMU) on my ATARI ST (!).

Version 0.1 First version with a version number    (1997)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Mailbox-Program was rewritten in c on my Linux-PC
- first X11-Commands

Version 0.2 Alpha (1998)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- improved X11-Basic for use at the physics institute in Bonn
- Fixed last Problems of the Parser (didn't like -1*(4-3) )
- Added more X-features (redraw)
- First portation to a HP-Workstation
- Readline library in use

Version 1.00 Beta (Mar 1999)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Makefile and configure script adapted from STonX
- True-color Displays
- X rootwindow, multiple windows
- INKEY$
- First GPL-Distribution
- FILESELECT,ALERT

Version 1.01 (Jun 1999)
~~~~~~~~~~~~~~~~~~~~~~
- POINT()

Version 1.02 (Jun 2000)
~~~~~~~~~~~~~~~~~~~~~~
- rsrc_load
- shell, daemon

Version 1.03 (Mar 2001)
~~~~~~~~~~~~~~~~~~~~~~~
- copyarea, sget, sput, get,put
- fill-Patterns
- drop down menues
- String-Variables may now contain nul-characters.
- POKE,DPOKE,LPOKE,EVEN(),ODD()
- LINK,UNLINK
- CVI(),CVD(),CVF(),CVL()
- MKI$(),MKD$(),MKL$(),MKF$()
- ON x GOSUB proc1,proc2,...
- ON x GOTO label1,label2,...
- INSTR(),RINSTR()

Version 1.04 (Apr. 2001)
~~~~~~~~~~~~~~~~~~~~~~~~
- splitted off shared library libx11basic.so (300kB)
- bug fixed which caused print a,b to segmentation fault
- DUMP "#"
- SYM_ADR()
- CALL, EXEC, EXEC()  with parameter list
- DUMP "K" DUMP "F"

Version 1.05 (Aug. 2001)
~~~~~~~~~~~~~~~~~~~~~~~~
- PRINT USING
- SYSTEM$()
- GLOB()
- RBOX, PRBOX
- EDIT, SAVE
- HELP
- new system errors
- started to translate everything into english

Version 1.06 (Jan. 2002)
~~~~~~~~~~~~~~~~~~~~~~~~

- included serial device support
- improved FILESELECT
- modified ALERT
- improved COLOR
- FORM_DIAL(), FORM_DO(), OBJC_DRAW()
- GPRINT

Version 1.07 (Aug. 2002)
~~~~~~~~~~~~~~~~~~~~~~~~
- Fehler mit Exponentialdarstellungen von Zahlen mit negativem Exponent
  ist nun endlich behoben !!!
- Anbindung an tine-Bibliothek und Kontrollsystem ist nun moeglich

Version 1.08 (Jan. 2003)
~~~~~~~~~~~~~~~~~~~~~~~~
- Support for tine-library
- a first MS-WINDOWS version is now available
- some new functions
- FIT and FIT_LINEAR
- SORT command
There was a bug introduced in the MENU command. Fixed it in release 1.08-4.

Version 1.09 (June 2003)
~~~~~~~~~~~~~~~~~~~~~~~~
- ANSI-Basic to X11-Basic converter included
- New example programs
- updated man-page and documentation
- new SOUND command
- EVAL, EVAL()
- modified serial line support
- modified the configure procedure
- some modifications for portability
- will now compile on FreeBSD and CYGWIN

Version 1.10 (Feb 2004)
~~~~~~~~~~~~~~~~~~~~~~~~
- new REPLACE$() function 
- improved speed 
- bug fixed in ROUND() function
- fixed bug in PUT_BITMAP
- fixed bug in serial device handling
- added sysvars COLS and ROWS
- new INODE/DEVICE/MODE/NLINK/SIZE file functions

Version 1.11 (Oct 2004)
~~~~~~~~~~~~~~~~~~~~~~~~
- Parser now accepts unique short commands
- fixed little bug in INPUT
- new chapters in manual
- new commands: TOPW, BOTTOMW, INFOW, FULLW, CLIP
- found bug in ON ERROR and ON BREAK
- new FILL command
- changed TAB treatement in sourcecode
- worked on TINE implementation
- worked on the ARRAY functions
- new SHL(), SHR() function

Version 1.12 (Mar 2005)
~~~~~~~~~~~~~~~~~~~~~~~~
- fixed bug with DEFMARK
- experimental LISTSELECT
- worked on MATRIX functions: SOLVE(),INV(),DET()
- OPEN "UU"  UDP-Sockets
- CONNECT, SEND, RECEIVE
- New String Functions: REVERSE$(), MTFE$(), MTFD$(), RLD$(), RLE$()
- CRC()
- New Code Engines: BETE$(), BWTD$(), COMPRESS$()

Version 1.13 (Feb 2006)
~~~~~~~~~~~~~~~~~~~~~~~~
- fixed bug in INPUT$()
- woked in the TINE implementation (TINELISTEN, TINEBROADCAST)
- new MKA$(), CVA()
- fixed bug in PAUSE/DELAY
- implemented ioctl() function

Version 1.14 (Apr 2007)
~~~~~~~~~~~~~~~~~~~~~~~~
- improved the init_program routines
- woked on the bytecode compiler
- new programs xbbc and xbvm  + man pages
- the bytecodecompiler and virtual machine are still full of bugs
- some sample programs can already be compiled to bytecode, 
  they run 4 to 10 times faster 
- Bug fixed which caused "Command  not allowed in interactive mode" errors
  This bug was introduced in Version 1.14 since release 1
- worked on the control system routines (DOOCS)
- fixed bug with fgetc
- crosscompiled it with arm-linux for embedded linux
- new CHDIR command
- new SPAWN command (does still not work as wanted)
- created doocsxbasic modification to use the FLASH control system at DESY


Release notes for Version 1.15 (Feb 2008)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- New command: PIPE
- New commands: GET_SCREENSIZE, GET_GEOMETRY
- Implemented BMP file format (for PUT)
- produced a framebuffer-graphics version of X11-basic


Release notes for Version 1.16 (Feb 2010)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Bugfix in SORT (Feb 2010)
- new function word$() June 2010
- Improved DATA/RESTORE handling Dez 2010
- Improved xbbc/bytecode/xbvm
- Fixed memory leak accuring in varptr()
- added xbbc and xbvm to windows distribution
- started xb2c project
- new psydocompiler for MS-WINDOWS, can produce standalone .exe files 
- Bug fixed: LINEINPUT and LINEINPUT$() now can read arbitrary long lines
- fixed bug with PBOX: now 2nd coordinate is inside the filled area.
- new commands WATCH/(UNWATCH)/FILEEVENT$
- fixed bug with bitmaps (PUT)
- added support for bitmaps with transparency/alpha channel
- fixed bug in DEFFILL
- fixed bug in objc_draw()

Release notes for Version 1.17 (May 2011)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Adapted windows version to use the SDL library (2011-04)
- added PLAYSOUND command (works only in SDL and WINDOWS version) 2011-05
- modifyed syntax of SOUND command 2011-05
- added ALSA sound support for SOUND command. 2011-05
- made syntax a bit more tolerant against extra blanks
- bugfix with BOX (confusion with curses library, segfault)
- worked on the xb2c compiler/translator 2011-08

Release notes for Version 1.18 (Sept 2011)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Reworked variable management
- Reworked xb2c compiler, produced code is now much(!) faster.
- interpreter is now 8% faster
- virtual machine is 20 times faster than interpreter
- compiled code is 30 times faster than interpreter
- improved detection of const expressions.
- improved detection of fieldindex too large (less segfaults now)
- fixed a memory leak
- updated the documentation
- changed DIM behavior: DIM a(10) means elements a(0) to a(9) are there.
- fixed some bugs. 
- New command: CURVE
- Implemented DEFFN
- Optimized Compiler: simple math functions and Square

Release notes for Version 1.19 (Mai 2012)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Android version
- virtual machine now included in library
- new GPS and SENSOR commands (for Android version)
- new SPEAK kommand (for Android version)
- improved framebuffer graphics routines
- new command: PLAYSOUNDFILE (for Android version)
- new command: GET_LOCATION
- BUGFIX: SOUND, WAVE, AND(), OR(), XOR(), NOT()
- BUGFIX: FOR with integer variable
- BUGFIX: SELECT CASE ENDSELECT
- NEW: "!" is now allowed at the beginning of a line
- BUGFIX: SELECT/CONTINUE
- some minor changes for 64bit version

Release notes for Version 1.20 (Dez 2012-Mar 2013)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- New command: SHELL (also for Android)
- bugfix: strcpy().
- Improved: Editor execution in Android version
- Fixed bug with desktop shortcuts under Android
- Bugfix in virtual machine (AND)
- included va_copy patch for 64 bit version by Matthias Vogl
- fixed bugs in compiler (ARRAY constants)
- fixed bugs in VARPTR() and ARRPTR()
- fixed bug in local variable handling
- fixed memory leak LOCAL/RETURN
- fixed bug/crash with MERGE
- new function: call android intents with EXEC
- fixed bug/crash in LIST command 
- fixed bug in SWAP command
- fixed bug/crash in CALL command 
- new commands: MKDIR, RMDIR, KILL, HIDEM, SHOWM
- new functions: LEFTOF$(), RIGHTOF$(), ENCLOSE$(), DECLOSE$(), TALLY()
- new functions: COLOR_RGB(), BYTE(), CARD(), WORD(), SWAP(), CINT(), VARIAT()
- new commands: RENAME, CHMOD, TOUCH


Release notes for Version 1.21 (Apr 2013-Nov 2013)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- fixed bug in GET_SCREENSIZE (Windows version)
- new: support for Android x86 platform
- new: (legal) FFT algorithm now included (by Paul N. Swarztrauber, public domain)
- new: using LAPACK for INV() and SOLVE() (linux only)
- removed support for numerical recipes routines
- new: FIT_POLY
- fixed bugs in SPUT, LOCATE, PRINT USING
- new function USING$()
- fixed memory leak with STRING variable assignment
- fixed bug in INPUT (Android version only, locate)
- fixed bug in RUN (close files)
- fixed bug in bytecode compiler (STEP -#)
- improved speed of string parser
- fixed small problem with LOAD (last line without EOL)
- fixed typos in the manual and offline help
- fixed screen rotation bug (Android)
- fixed bug in PUT scale (Android)
- fixed bugs in GET and PUT (Windows version)
- fixed bug in SPLIT
- fixed bug in GPS functions (Android)
- new function EVENT?()
- improved LINEINPUT
- fixed bug in Array const
- fixed bug in compiler (array operations)
- fixed bug in ELLIPSE, PELLIPE, RBOX and PRBOX (Android Version)

Release notes for Version 1.22 (Dec 2013-June 2014)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- improved crash reports (Android)
- Bugfix ARRAY (create, init)
- new: ABSOLUTE command
- new: VAR statement allows parameters "by reference"
- added UTF-8 (unicode) support for LTEXT
- added UTF-8 (unicode) support for console/terminal (Android)
- added unicode bitmap font for greek/kyrillic for console/terminal (Android)
- MENUDEF now compiles without error
- AFTER/EVERY works in bytecode now
- new functions: FSFIRST$(), FSNEXT$()
- new example program: stepdir.bas
- fixed bug in MOUSEK, MOUSE (Windows version)
- small bugfixes in CASE,PAUSE,INSTR(), SORT, USING$(), PRINT USING
- fixed bug in VAL?(), DET(), and GPRINT
- fixed bug in ON ERROR, ON BREAK and ON MENU
- fixed bug in String compare
- fixed bug in HEX constants "0x" (Android)
- new string function RADIX$()
- fixed bug in framebuffer version (linux) 
- fixed bugs in parser
- new statement: ENDPROCEDURE (optional)
- improved speed of bytecode
- bugfix in compiler, improved error messages
- fixed bug in DIM, VAL?(), PLIST

Release notes for Version 1.23 (July 2014 -- August 2015)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- New data type: complex numbers a#
- New data type: arbitrary precision integers a& (experimental)
- LAPACK functions (e.g. SOLVE(), INVERT() etc.) now work in Android version
- New functions LCM() and GCD()
- fixed bugs in compiler (PRINT)
- fixed bug in MID$()
- compiled an ATARI ST (MINT) version of X11-Basic
- Fixed bug in LOAD / Screen rotation
- Again modified MID$
- Crashfix: clear_variable
- Fixed unavail basedir in Android
- fixed bug in EVAL, HELP, RND(), SGET, GET, PLIST, RSRC_LOAD, OBJC_DRAW()
- increased speed of assignment in interpreter
- workaround for TTS crash (Android)
- new functions UBOUND() and DIR$()
- further crashfixes (bytecode)
- fixed bugs in WINDOWS version (RSRC_LOAD)
- improved GPRINT COLOR(), ALERT
- fixed bugs in bytecode compiler MIN(), MAX() and PRINT
- fixed bugs in BIN$(), OCT$(), HEX$(), RADIX$()
- new functions ROR() and ROL()
- improved EVENT and EVENT?() (Windows)
- SGET/GET/SAVEWINDOW/SAVESCREEN now produce BMP data also in UNIX/LINUX
- new functions PNGENCODE$() and PNGDECODE$()
- fixed bug in FREEFILE()
- fixed memory leak in virtual machine (less crashes now!)
- fixed bug in SIZEW (linux) introduced in V.1.23
- made tolerant for CRLF (DOS mode) .bas files
- added View Docu function in context menu (WINDOWS)
- added source box to PUT
- fixed SPEAK (Android)
- fixed crash (Android) on load while program is still running

Release notes for Version 1.24 (Sept 2015 -- Aug 2016)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- added source box to PUT
- fixed SPEAK (Android)
- fixed crash (Android) on load while program is still running
- Improved USB-Support (linux+WINDOWS)
- New Setup for WINDOWS version (by InnoSetup)
- Added spanish voice in SPEAK (Android)
- new feature: screen focus for Android
- fixed INKEY$ and INP(-2) (Windows)
- fixed PUT_BITMAP (Android + Windows)
- fixed bug in PUT (Android)
- added sqlite3 binary to Android Version (make sqldemo.bas work again)
- added gfalist binary to Android Version (see gfalist.bas)
- fixed subarry assignment
- improved DUMP, added DUMP c$,#n, also PLIST #n
- fixed Crash (SIGABRT) in Android version.
- fixed Crashhandler (Android)
- fixed bug in RADIX() and fixed bug in arbint/arbfloat evaluation
- fixed bug in FILL and ELLIPSE/PELLIPSE (for big screens)
- fixed power operator in compiler for integer operands
- little bugfix in compiler (PRINT #)
- improved FILESELECT
- little fixes in GLOB()
- improved the MAC-OSX version of X11-Basic
- improved 64bit version of X11-Basic
- fixed bug in CLEARW
- fixed missing pixel in BOX/HLINE (framebuffer versions)
- fixed bug in HELP

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