Allow REXX macros in the attributes of the GROUP tag

[gyoung]

This is needed to allow easy translation of the GROUP TITLE attribute (<GROUP TITLE="=("get_env group_title")"> where get_env is a REXX macro and group_title contains the string to be translated).

It might also be useful to allow it in the GROUP BLOCK to allow EXPANDED to be used conditionally.

[Andreas Schnellbacher]

Christian has created for the NEPMD project a preprocessor (parseenv.cmd) that expands vars in the .wis file (nepmd.wis) with values defined in .h files.

The syntax $(...) is used for WarpIN vars. parseenv.cmd uses the syntax %...% for text replacements. See the following files as an example:

​http://svn.netlabs.org/repos/nepmd/trunk/src/wis/nepmd.wis
​http://svn.netlabs.org/repos/nepmd/trunk/src/wis/nepmdpck.h
​http://svn.netlabs.org/repos/nepmd/trunk/src/nls/wis/nepmdeng.h
​http://svn.netlabs.org/repos/nepmd/trunk/bin/parseenv.cmd

[pr]

Please supply a small sample .WIS file for testing.