Object REXX for OS/2

If possible, you should use the special version for WARP 3 from the IBM WebSite (see Internet - Web Pages). Use of this version is not restricted to machines running WARP 3. It is a complete version of Object REXX and, at this time, the most up-to-date version available. This version is being promoted to users of WARP 3, since the GA version of WARP 3 did not contain a copy of Object REXX, as did WARP 4. It runs fine on WARP 4 machines.

Note: The CD-ROM from the book Object REXX for OS/2 WARP contains a copy of Object REXX for OS/2.

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  The following are lists of fixed bugs in the updated versions of Object REXX

  The following is the list of fixed bugs in the version OBJREXX 6.00 18 May 1999:

  ENHANCEMENTS TO OBJECT REXX

  The following enhancements have been made to this Object REXX level:

  Bugs corrected in 99/05 release

  • Calling function Trace() with an invalid option no longer causes an access violation.

  • Function FORMAT() no longer creates extranuous trailing blanks for certain numbers.

  • Sliding window algorithm for two digit years adjusted for some cases in Date() function.

  • Several syntax errors reported will now show the correct source line location in the user program.

  • A single LF that falls on the internal buffer boundary is no longer ignored.

  • Piped input no longer contains additional characters.

  • Literals no longer cause and error with the VALUE() function.

  • DATE("S") with output separator specified now formatted correctly.

  • Memory leak when reading from streams has been removed.

  • Memory leak when creating many stream objects has been removed.

  • ARRAYIN method of the stream class no longer raises the NOTREADY condition.

  • When a stack overflow is encountered it will be handled correctly without causing an application error.

  • RANDOM(1,,99) no longer causes an application error.

  • STREAM("STDIN","C","CLOSE) no longer causes a trap.

  Features added in 99/05 release

  • New REXXUTIL functions:

    • SysDumpVariables

    • SysGetFileDateTime

    • SysSetFileDateTime

    • SysStemCopy

    • SysStemDelete

    • SysStemInsert

    • SysStemSort

    • SysUtilVersion

    • SysVersion
    
    If the first line contains a Unix style shell definition starting with #! it will be ignored (seen as a comment).

  • ENHANCEMENTS TO OBJECT REXX

    The following enhancements have been made to this Object REXX level:

    Bugs corrected in 98/10 release

    • Calling function Trace() with an invalid option no longer causes an access violation.

    • OPTIONS EXMODE not working correctly

    • SysFileTree did not work correctly with absolute path from root (e.g. "\OS2")

    • Subclassing class STREAM could cause a trap

    • Closing files after changing directories sometimes did not work

    • Broken error message for bad hexadecimal strings

    • Internal memory handling problem

    • Trap with many threads depending on timing at thread termination

    • DO..OVER binary files caused system resources to be exhausted

    • UNINIT method not called when defined in a parent class

    • Last line was ignored by SysFileSearch when not terminated with CR/LF

    • Drop of an object didn't invoke the UNINIT method

    • Stream SEEK command no longer requires READ/WRITE attribute, if none is specified BOTH is assumed (to be compatible with classic REXX)

    • TRANSLATE("abc","","") gives incorrect result

    • Trap or unpredictable results with long parse statements

    • Accessing an unqualified filename (no path information) sometimes failed after changing the current directory

    • String comparison with padded characters fails if excess character is greater than ASCII 127

    • SysFileTree fails to find Win95 LFN directories

    • Long message evaluation expressions not protected from garbage collection

    Features added in 98/10 release

    • New input and output separators for DATE() function according to revised ANSI standard

    • Use double dash -- as line comment according to request by ANSI comittee

    • Use single dash - as line continuation character according to request by ANSI comittee

    • Default stream open behaviour is now non-shared (as with classic REXX).

    The three new options for the stream command available to open files in shared mode are:

    SHARED

    allow reading and writing from other processes
    SHAREREAD
    allow reading from other processes
    SHAREWRITE
    allow writing from other processes

    e.g.:

        CALL STREAM "MYFILE.DAT","C","OPEN READ SHARED"
       CALL STREAM "LOGFILE.TXT","OPEN BOTH SHAREREAD"
    

    ---------- * ----------
    

    The following is the list of fixed bugs in the version OBJREXX 6.00 25 Mar 1998:

    ENHANCEMENTS TO OBJECT REXX

    The following enhancements have been made to this Object REXX level:

    Corrected several bugs

    • SysFileTree error when using the 'O' option

    • Speed up processing of LINES() built-in function

    • Stream Query Size returns wrong value for not existing files

    • Memory problems with objects larger than 16 MB

    • CHARS() built-in function returned -1 for certain files

    • Memory leak when working with many files

    • LINES() method and built-in function didn't recognize a single character after CR/LF

    • Line count wrong for files ending in CR-LF-EOF

    • WPS support not persistent between reboots

  • The following is the list of fixed bugs in the version OBJREXX 6.00 11 Nov 1997:

    ENHANCEMENTS TO OBJECT REXX

    The following enhancements have been made to this Object REXX level:

    Corrected several bugs

    • External programs cannot be started in the foreground

    • FILESPEC returns empty string for certain filename specifications

    • Problem with line contination character in mixed CRLF/LF files

    • Trap after garbagge collection

    • Problem parsing mixed SBCS/DBCS strings

    • Trap when trying to access memory from different processes

    • Corrected a problem with duplicate freed memory in SysIni

    • Wrong error location for duplicate method

    Added features

    • New functions in REXXUTIL.DLL (see New REXXUTIL functions in Object REXX)

    • Enable SysIni function to work in a non-PM environment (see New REXXUTIL functions in Object REXX)

  • The following is the list of fixed bugs in the versions OBJREXX 6.00 26 Feb 1997 and OBJREXX 6.00 21 Jul 1997:

    ENHANCEMENTS TO OBJECT REXX

    The following enhancements have been made to this Object REXX level:

    Corrected several bugs

    • Trap in deep recursive algorithms

    • Problems with CR/LF literal translation in output streams

    • Data files not written if session exited with "EXIT"

    • RexxVariablePool did not return EXITNAME symbol

    • SysFileSearch quits at EOF in the middle of the file

    • Problems with intersection operations on collections

    • Bad count in SysFileSearch with mixed LF, CR/LF line feeds

    • Trap when called from IBM Internet Connection Server

    • CHARS() and LINES() return 0 for redirected STDIN

    • Trap in recursive invocation of STRING method

    • Delete key has no effect in PMREXX entry field

    • Trap when seeking not existing file

    • Hashvalue not defined for class objects

    • Error in PARSE CASELESS instruction

    • Incorrect output with .error~say

    • Standard streams not recognized with colon in name

    • Propagate error/halt conditions from OREXX image

    • Hard error popup in STREAM("A:\TEST.DAT","C","QUERY EXISTS")

    • Concurrent start of program fails sometimes

    • Problem setting OS/2 environment

    • LINEOUT does not write to correct file

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