[regex-coach] Possible regex coach bug in "Tree"

[Edi Weitz]

On Thu, 05 Jul 2007 16:53:29 -0400, Gordon Fitz-Simons <gordon at fitz-simons.org> wrote:

> I noticed a possible bug after completing the excellent "Tutorial".
>
> ===========
> Background:
> ===========
> I am running Windows XP Professional, SP 2 and am current
>    on all "Windows Update" fixes.
>
> My machine is an HP Pavilion:
>     CPU: AMD Turon 64  ML-37
>     Mem: 1 Gigabyte
>
> I am using "The Regex Coach" version 0.9.1. which
>    I just downloaded and installed.
>
> I have never previously installed any versions of "The Regex Coach"
>
> The version of msvcr80.dll installed on my machine is 8.0.50727.42.
>
> ===========
> Problem:
> ===========
> My problem can be replicated as follows:
>
> 1. Enter   (x*)b|a(y+)c    in the "Regular expression" text box.
> 2. Enter   xaacy           in the "Target string"      text box.
> 3. "Click" on the "Tree" Tab
>
>       The "Parse tree" is shown correctly.
>
> 4. In the "Regular expression" text box
>     a. Highlight "|a(y+)c" with the mouse
>     b. Press the delete key - leaving only "(x*)b"
>
>      The "Parse tree" now shows (incorrectly?) a combination
>      of the regex entered in 1 above
>      AND the edited regex entered in 4 above!
>
>      Is this a problem/bug?

Sorry for the delay, just returned from vacation.

Yes, this is a bug that I'll look into in the next days.  Thanks for
the detailed and very helpful report!

Cheers,
Edi.