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RE: [ESPResSo-devel] Tcl interpreter changed?

From: Limbach, Hans Joerg, LAUSANNE, NRC-FS
Subject: RE: [ESPResSo-devel] Tcl interpreter changed?
Date: Tue, 3 Jul 2007 14:43:03 +0200

Hi Olaf.

Ira Cooke used additional packages already for his membrane stuff so
probably Markus and his people know how to do this.

> -----Original Message-----
> From: address@hidden 
> [mailto:address@hidden On 
> Behalf Of Olaf Lenz
> Sent: mardi, 3. juillet 2007 14:24
> To: ESPResSo developers' mailing list
> Subject: Re: [ESPResSo-devel] Tcl interpreter changed?
> Hash: SHA1
> Hello!
> I have had a look at the "tclline.tcl" file, and I located 
> the problem in lines 133 and 134:
>             set col [expr {$cursorLen % $env(COLUMNS)}]
>             set row [expr {$n + ($cursorLen / $env(COLUMNS)) + 1}]
> The environment-variable "COLUMNS" is most probably only 
> defined on Linux systems. This is not very nice. In general, 
> the code seems to rely on a number of Linux-specific features.
> As stated in the file, the code originates from the Tcl wiki 
> at After I have done some reading on the 
> page, it seems to me that the copyright status of the code is 
> not completely clear. Although very improbable, in theory, 
> one of the contributors might sue us for copyright 
> infringement if we simply put it into ESPResSo. I know, this 
> is annoying and not in the spirit of the thing, but still, 
> the legal status is unclear.
> I would vote to look for a better replacement. In principle, 
> there is a real Tcl readline[1] package that we could 
> incorporate into ESPResSo.
> However, this would require us to generally check how the 
> Tcl/Tk interpreter of ESPResSo can be extended with 
> additional packages.
> Olaf
> References:
> [1] or
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