[plt-scheme] any good debugger for MzScheme?

On Wednesday, June 25, 2003, at 10:22  PM, wang yin wrote:

>   For list-related administrative tasks:
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>
> Hi, I'm looking for a debugger for MzScheme that can do the
> following:
>
>
> 1. A source breakpoint placer that can put a break point
>    anywhere in the source code. Like that of guile-debugger.
>
> 2. A procedural breakpoint function such as (break! func1).
>    That can stop at the entry of a procedure.
>
> 3. Run levels support. And I can push down the running
>    thread and get into a new run level to examine everything
>    of the lower run levels. Later I can resume the stopped
>    run level by return a expression to the continuation Like
>    that of Scheme 48 and GambitC.
>
> 4. A data and stack inspector. Like that of Scheme 48.

Thanks for the well-explained request list.  Most of the machinery for 
such a debugger is in place, but I have not yet assembled it into a 
useful debugger.

john clements