changelog

Linux下VB解释器

Version 2.762 (September 16, 2005)
  - Swapped the precedence of unary minus and exponentiation to
    follow the mainstream of programming languages. Suggested
    by Mike Hoffman.
  - Fixed a bug with drawing the outline of a triangle.
  - Lots bugs and typos fixed in the docu. Thanx to A. Costa !
  - rinstr() is okay again.
  - system$() may not dump any longer, if an external command returns no output.
  - Some improvements for compiling on FreeBSD.
  - Made the text-command working again.
  - Maybe yabasic does not leak resources under Windows 95 any longer.
  - Some fixes related with the console window under Windows
  - Added a list of reserved words to the documentation.
  - Special thanks to Derek and Mike Huffmann !

Version 2.76 (April 25, 2005)
  Some major improvements for grafics
  - Full color support !
  - Different fonts for the text-command
  - The new command triangle

Version 2.75 (May 19, 2004)
  - Yabasic finally has an Icon under Windows
  - The str$()-function, may now format numbers
    like 123,456.56 (or 123.456,56 for german conventions)
  - Changed the system()-function under Windows
    to use the right command-processor
  - Added a list of command, grouped by topics to the
    documentation
  - Yellow is no longer brown under windows
  - Removed a security problem related with printing
    under Unix
  - Programs, that import libraries can now be
    bound, including all the imported libraries

Version 2.740 (January 18, 2003)
  - Implemented the bind-feature
  - More verbose messages on failing open-calls
	
Version 2.730 (August 19, 2003)
  - Complete rewrite of the documentation
  - Updated my system, which introduced new
    versions of the toolchain (gcc, autoconf, ...)
  - No changes in yabasic itself

Version 2.720
  - Added two argument version of log
  - Changed copyright notice

Version 2.717
  - Bugfix by Tom Ellestad: Better Error-
    checking for import-statement

Version 2.716
  - Bugfix: fixed 'open "foo" for reading as 1'
	
Version 2.715
  - Bugfix: continue is no longer disturbed by switch
    statements
  - The special option '--' stops option processing

Version 2.714
  - Bigfix: >> if (not open("bad","r")) error "!" << 
    now works as designed

Version 2.713
  - Fixed a memory leak associated with arrays-refs
  - return from within a switch statement is now possible

Version 2.712:
  - The new Option '-check' can be used to check for
    compatibility with previous versions of yabasic
  - The instr(a$,b$)-function now returns 0, if
    b$ is the empty string

Version 2.710: 
  - Improved th short if-statement to be mroe intuitive
  - Added switch-case statement
  - Better loop-control: break and continue

Version 2.70: 
  - Allowd hex-escapes in string constants (e.g. "\xa").
  - Better warnings for forgotten endif, endsub or next.
  - Allowed for dumping of stack of subroutine calls.
  - Various bugfixes related with: print using,token$()
    and with printing to mixed streams

Version 2.690: 
  - implemented logical shortcuts, i.e. conditions within
    if or while statements are only evaluated as far as needed.
  - New form of the open statement: open "foo" for reading as #1
  - New form of the open function: open(a,"foo") intended for use
    in if-statements: 
      if (not open(a,"foo")) print "Shit !"
  - The same time an old variant of open within if has gone:
      if (not open a,"foo") print "Shit !"
    is no longer valid.
  - You may now write: print #a "Hello"
  - Finally: there is no distinction between expressions and conditions
    any more, i.e. wihin the condition of an if-statement you may
    now use arbitrary expressions; even something like this:
      if (cos(x)) print "Strange"
  - Fixed a bug with printing under Windows: The screen now scrolls up
    if the cursor has reached the bottom

Version 2.681: Finished the work started with 2.680; yabasic can now
  parse its own demo again correctly.

Version 2.680: Essentially removed the distinction between expressions
  and conditions, i.e. you may write things like this:
    okay=(1<10) : if (okay) print "Hallo"
  Included the man page with the distribution. Thanx to Dejan Lekic !

Version 2.671: Bugfix, yabasic will now build under hpux.

Version 2.670: Changed the scheme of version numbers: 2.67 Release 0 is now 2.670
  Unix only: Used automake to generate Makefile.in. Therefore you now
  have all the standard GNU make targets: make check, make install, make uninstall.