Greg: Enhance VGL Syntax Highlighting

[shabiel]

Many, many years ago when I was working with Dave Bolduc, as a poor version of a muse, I asked for a feature to help people 'see' the D0, D1, D2, etc. 'DA' values in the subscripts of a file with deeply nested multiples. He created the D R^XVEMG entry point. Few use it, I think.

If someone has activated syntax highlighting for routines that we take that as authorization to use colors on the VGL call? I'd like to have it colorize the 'root' (in the one below, it would show ^VECJ(19050.1, in some color and the record values in another. It could also colorize the header's zero node. Xrefs could have their names in another color. This would make it a LOT easier for newbies to see the parts of a file.

Maybe we could have a toggle called 'P' in the list of actions at the bottom of the screen to activate or deactivate 'parsing'. That would make it easy to turn on or off as you wish and you wouldn't have to use a separate call (R^XVEMG).