[Oorexx-devel] Question on New Translate Parameters
In working on my Symposium presentation on the new stuff in 4.0.0, I came across the examples of the new Translate parameters - pos, length. At first, I thought this one - TRANSLATE(abcdef, , , , 2, 3) - ABCDEF - must be wrong as I expected the result to be aBCDef but then realised that since both tables and pad were omitted, the default uppercasing was done and the pos, length parameters were ignored. OK, a bit surprising but so far, so good. Then I got to the second example of the new parameters - TRANSLATE(4123, abcd, 1234, , 2, 2) - 1ab4 - and I'm really confused. Why isn't the result 4ab3, i.e. only the second and third characters are translated? -- Gil Barmwater -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
[Oorexx-devel] Installing from source
Hi, I am trying to get ooRexx 4.0 up on my openSuse system. Downloaded the source - for all environments. Tries to use ./configure as I would expect. Nothing. After some time and study of older documentation (there doesn't seem to be recent doc in the source directory) I found the bootstrap file. Apparently all necessary info is generated by utilities. During install of autoconf I realised that it would probably be much more efficient if one of the developers would generate the necessary confihure file and make this available for anyone wishing to install from source. Is this an option? greetings, Klaas Punt -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
[Oorexx-devel] Some findings on how orxscript works
Ok, I've managed to get a debug 3.2.0 install set up on my system, and the stuff I'm finding is a bit on the bizarre side. Essentially all I did was set break points on all of the methods of orxscript.cpp and trace all of the calls between the scripting host and the Rexx scripting engine. Initially, things look pretty good. When running the simpleorexx.wsf sample, the script engine initializes, and is asked to parse the fragment of ooRexx code in the file that looks like this: Say This is GetScriptEngineInfo() Ver = Accessing the version info from Rexx yields ScriptEngineMajorVersion(). Ver = Ver||ScriptEngineMinorVersion().ScriptEngineBuildVersion() Say Ver WScript~Echo(Done!) The code for parsing this file is truly strange. It first calls RexxStart on a second thread to actually run this code, and uses one of those private APIs to grab the names of the ::ROUTINES PUBLIC contained in the file. These function names are recorded, I believe, as globally available routines that can be called from other script contexts. Then another undocumented API is called to convert this into a callable script. This is very strange, but we can accomplish all of this using the routine/package classes in 4.0. Then it gets a little strange. There is a call to the OrxScript::SetScriptState() method to set the state to UNINITIALIZED. This has the following comment at the code that is executed. case SCRIPTSTATE_UNINITIALIZED: // IIS (ASP server) sets the engine from STARTED to UNINITIALIZED // from what I remember from the documentation, this is ILLEGAL // it may be a shortcut way of rerunning a script, but only Microsoft // knows exactly what is intended to happen in this scenario // returning this error causes the webserver to shut down the engine // and create a new instance again... hResult = E_UNEXPECTED; break; Well, this does exactly what the comment says it does. The script engine instance is shut down, then a second instance is initialized. This one handles a different sequence of calls. This time, a number of calls are made to AddNamedItem() passing in items with names like WScript. These are obviously the global objects that the script host exposes. Then the ParseScriptText() method is called again to reparse the same script fragment that was used with the first instance of the engine. This time, the fragment is run after being parsed, and a couple of special (and undocumented exits) come into play. The first exit handles NOVALUE events, and will check for items that were added via AddNamedItem() on references to uninitialized variables. This is the magic that allows WScript to be a valid variable name when the script runs. When the fragment completes, the termination exit is used to capture all of the variable names and register them as global names in the environment as well. I think I need to do some more tracing with a more complicated example that has multiple fragments so I understand the interactions between fragments, but this is what I've discovered so far. Right now, I have some obvious questions: 1) Is this how the variable model should be handled, or should imported/exported variables be handled explicitly? For example, Rony's suggestion of a .host environment entry might make some sense rather than using the somewhat strange implicit model. These variable names as currently handled appear only visible for the toplevel fragments, and are not propagated to call ::routines included in the fragments. Using the special accessor would allow a single visibility model. 2) Somewhat related is the question of what variables/routines get made visible to the outside worldand it would be nice to apply this to object instances too. This is really item 1A) really, rather than a separate item. Rick -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Question on New Translate Parameters
Gil, This is a category of problem known as a doc bug. The correct results for these calls are aBCDef and 4ab3, as you expected. Please open a doc tracker for this. Rick On Sun, May 3, 2009 at 11:28 AM, Gil Barmwater gbarmwa...@alum.rpi.edu wrote: In working on my Symposium presentation on the new stuff in 4.0.0, I came across the examples of the new Translate parameters - pos, length. At first, I thought this one - TRANSLATE(abcdef, , , , 2, 3) - ABCDEF - must be wrong as I expected the result to be aBCDef but then realised that since both tables and pad were omitted, the default uppercasing was done and the pos, length parameters were ignored. OK, a bit surprising but so far, so good. Then I got to the second example of the new parameters - TRANSLATE(4123, abcd, 1234, , 2, 2) - 1ab4 - and I'm really confused. Why isn't the result 4ab3, i.e. only the second and third characters are translated? -- Gil Barmwater -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Installing from source
On Sun, May 3, 2009 at 9:31 AM, Klaas. kpli...@xs4all.nl wrote: I am trying to get ooRexx 4.0 up on my openSuse system. Downloaded the source - for all environments. Tries to use ./configure as I would expect. Nothing. Sorry, this is probably my fault. I've been packaging up the source tar file for the beta since David has been very busy. I probably skipped a step. I just tarred up the source tree as is, from a fresh checkout. Now that I think about it, there is a make target for packaging that I think also produces a tar file. That target probably produces what you want. I'll fix that later today. -- Mark Miesfeld -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Installing from source
On Sun, May 3, 2009 at 9:31 AM, Klaas. kpli...@xs4all.nl wrote: I am trying to get ooRexx 4.0 up on my openSuse system. Until I get the source file package fixed, I'm curious as to why you don't want to install one of the already built packages for your openSuse system? There's nothing wrong with wanting to build yourself, I probably would. As I said just curious. -- Mark Miesfeld -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Question on New Translate Parameters
Will do and thanks for the reassurance that I'm not yet senile! Rick McGuire wrote: Gil, This is a category of problem known as a doc bug. The correct results for these calls are aBCDef and 4ab3, as you expected. Please open a doc tracker for this. Rick On Sun, May 3, 2009 at 11:28 AM, Gil Barmwater gbarmwa...@alum.rpi.edu wrote: In working on my Symposium presentation on the new stuff in 4.0.0, I came across the examples of the new Translate parameters - pos, length. At first, I thought this one - TRANSLATE(abcdef, , , , 2, 3) - ABCDEF - must be wrong as I expected the result to be aBCDef but then realised that since both tables and pad were omitted, the default uppercasing was done and the pos, length parameters were ignored. OK, a bit surprising but so far, so good. Then I got to the second example of the new parameters - TRANSLATE(4123, abcd, 1234, , 2, 2) - 1ab4 - and I'm really confused. Why isn't the result 4ab3, i.e. only the second and third characters are translated? -- Gil Barmwater -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel -- Gil Barmwater -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Some findings on how orxscript works
A maybe helpful URL, that contains other interesting links: http://en.wikipedia.org/wiki/Windows_Script_Host with a lot of interesting downloads Ah, was too quick, here a few more links, which you may know of already: * http://msdn.microsoft.com/en-us/library/ms950396.aspx: Scripting Main Entry point * http://msdn.microsoft.com/en-us/library/9bbdkx3k(VS.85).aspx Windows Script Host Main Entry * http://msdn.microsoft.com/en-us/library/fdee6589(VS.85).aspx Developer's Branch into Windows Script Host (look at all subnodes) These pointers should give quite a fair overview. Also, if you download the WSH package (don't have a URL handy) one gets an installable help-file that not only documents the WSH classes, but also the COM interfaces defined for Windows script host applications. (Have a zip-archive someplace.) ---rony -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
Re: [Oorexx-devel] Installing from source
Op 03-mei-09 schreef Mark Miesfeld: On Sun, May 3, 2009 at 9:31 AM, Klaas. kpli...@xs4all.nl wrote: I am trying to get ooRexx 4.0 up on my openSuse system. Until I get the source file package fixed, I'm curious as to why you don't want to install one of the already built packages for your openSuse system? Well, my hardware is Mac. I use mostly PPC Macs and one Intel Mac. On 2 of those I have open Suse installed. On all of those I have ooRexx 3.2 (both Suse and OS X). So that's why. greetings, Klaas. There's nothing wrong with wanting to build yourself, I probably would. As I said just curious. -- Register Now Save for Velocity, the Web Performance Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf ___ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
