#47 need command enumerate bindtags

[Brent B. Welch]

OriginalBugID: 877 RFE
Version: 8.0.3
SubmitDate: '1998-11-25'
LastModified: '1999-11-03'
Severity: LOW
Status: Assigned
Submitter: pat
ChangedBy: hobbs
OS: All

From: John Ousterhout <ouster@scriptics.com>
Subject: RFE: need more introspection in Tcl and Tk

This is another problem pointed out by Kevin Kenny in his Tcl/Tk
Conference paper.

Tcl and Tk are missing several pieces of introspection that are
meeting to find memory leaks. Right now there are no Tcl commands
that can be invoked to find out about the following things:

- bindings for nonexistent canvas and text tags, or nonexistent binding tags

[Donal K. Fellows]

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I was under the impression that canvas tags were just ways
of naming groups of canvas items, and that they had no real
data structures attached to them. Hence you can't enumerate
the tags that are not attached to anything.

Text widgets can enumerate their tags. Given a tag name,
you can find its bindings.

There is no way currently to enumerate the defined bind-tags
in a Tk app.