RE: [WDSCI-L] Re: jLpex keys for re-definition

["Robin Coles" <robin@xxxxxxxxxxxx>]

Hi Adrian,

Many thanks for this.  I'll have a play.  It's extremely helpful just to
see a simple example of what needs to be done.

Is there any news on integrating Rexx as a macro language to jLpex?  As
you say, quick is relative, and java is a degree more complex to pick up
for casual stuff like this than Rexx.  

Cheers
Rob

-----Original Message-----
From: wdsci-l-bounces@xxxxxxxxxxxx [mailto:wdsci-l-bounces@xxxxxxxxxxxx]
On Behalf Of Adrian
Sent: 26 June 2003 21:19
To: wdsci-l@xxxxxxxxxxxx
Subject: [WDSCI-L] Re: jLpex keys for re-definition


Robin Coles wrote:
> 2) Is there a way of defining multiple key actions or other "mini 
> macros" without having to resort to Java?  E.g. In code I have a key 
> that maps to shift a block right 3 spaces.  In jLpex I can map a key 
> that shifts a block right one space, but I can't pass it the number of

> spaces to shift, and I can't work out how to repeat the "shift once" 
> automatically.

Not right now.  However, you can try a 'quick and dirty' Java "macro", 
if you're not inclined to go through developing a plug-in for LPEX 
extensions, etc.  Disclaimer:  Quick here is relative, just as you may 
so consider the dirty part!

1.- Edit a file ThreeRight.java:
======================================================================
import com.ibm.lpex.core.LpexAction;
import com.ibm.lpex.core.LpexView;

public class ThreeRight implements LpexAction {
  public void doAction(LpexView lpexView) {
   int shift = lpexView.actionId("blockShiftRight");
   lpexView.doAction(shift);
   lpexView.doAction(shift);
   lpexView.doAction(shift);
  }
  public boolean available(LpexView lpexView) {
   return
lpexView.actionAvailable(lpexView.actionId("blockShiftRight"));
  }
} ======================================================================

2.- Compile with:
   javac ThreeRight.java

Your classpath must include:
   <wdsc install root>\eclipse\plugins\com.ibm.lpex_1.3.8\lpex.jar

3.- Copy the resulting class to the LPEX plug-in directory:
   copy ThreeRight.class
        <wdsc_install_root>\eclipse\plugins\com.ibm.lpex_1.3.8\*.*

4.- In the LPEX "User Actions" preferences, define the new class:
   Name:       threeRight
   Class name: ThreeRight

Now you can call this action from LPEX's command line:
   action threeRight

or bind it to a key from the "User Key Actions" preferences:
   Key:    a-backSpace
   Action: threeRight


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