On Thu, 7 Aug 2008 12:34:46 -0400, Dave Salt <[EMAIL PROTECTED]> wrote:
>If you want compiled REXX to be portable (in other words, you want the REXX to be executable at sites that don't have the REXX 'library' installed), then you *must* use the SLINE option (as well as the ALT option). This means the REXX source will be included in the executable, and will be executed at interpreted speed on systems where the REXX library isn't installed. However, as someone else pointed out, you can make the source unreadable by using the CONDENSE option. > Unreadable? Or simply "less obviously readable"? After all, if the interpreter can handle it, it must be reversible to source REXX statements in some way. >As far as execution goes, you can prevent the code from being traced by specifying CALL TRACE "OFF" throughout the program. To be safe, you need to specify CALL TRACE "OFF" as the very first line in the program, and at every point where the program 'pauses' to do something else. For example, if you have a REXX program that displays an ISPF panel and/or calls another program (etc) then you'll need to do something like this: > >/* REXX */ >call trace "OFF" >address ispexec >do forever >"DISPLAY PANEL(MYPANEL)" >call trace "OFF" >if rc> 0 then exit >"SELECT CMD(MYPROG)" >call trace "OFF" >end > >You'll notice that the above uses CALL TRACE "OFF" three times; at the very start of the program, immediately after it displays a panel, and immediately after it calls another program. I'm not certin, but I think you'd want to capture the rc after the DISPLAY, before calling trace "OFF". Good example, though. You'd probably also want to deal with attention processing, as otherwise someone could interrupt the exec and start an interactive trace at a time other than when you paused for input. -- Walt ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
