From octave-maintainers-request at bevo dot che dot wisc dot edu Wed Dec 18 12:18:54 2002
Subject: Patch for pt-check.cc/.h
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: JD Cole <jdcole at san dot rr dot com>
Cc: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>,    octave-maintainers@bevo.che.wisc.edu
Date: Wed, 18 Dec 2002 12:18:23 -0600

On 13-Dec-2002, JD Cole <jdcole at san dot rr dot com> wrote:

| I added visit_subplot_axes and visit_do_until_command. Since 
| tree_checker is not instantiated anywhere in the code, the missing 
| function don't show up upon compilation ... I think.

I applied your patch.

| Also, I was wondering curious about the current state of tree_checker, 
| does it probably "gripe" about script syntax?

I don't think it is currently used.  I think I started it as an
experiment in static analysis, but never finished whatever it was I
had in mind.

| If so, would it be usefull 
| for anyone else to add some functionality which allows the following:
| 
| tree_checker tc(tree_checker::non_verbose);
| 
| stmt->accept(tc);
| 
| if (tc.valid_syntax ())
|   go_on_my_way ();
| else
|   try_again_man();
| 
| If not, I will just use tree_checker under another name.

I think that if what you want is similar to what tree_checker already
tries to do, and if you can get there by just adding some options, you
should do that rather than duplicating most of the current code.

Thanks,

jwe