From: Axel Kohlmeyer (
Date: Thu May 31 2007 - 17:17:25 CDT

On Thu, 31 May 2007, Cesar Luis Avila wrote:

CLA> How may I use regular expressions for atomselection on tcl console?
CLA> For selecting all atoms starting with H in the graphical interface you write
CLA> name "H.*"
CLA> But on tcl console
CLA> [atomselect top "name H.*"]

you can use a literal string:

[atomselect top {name "H.*"}]

or backslash-escape the '"':

[atomselect top "name \"H.*\""]


CLA> cannot be used. What would be the correct expression?
CLA> Regards
CLA> Cesar

Axel Kohlmeyer
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
If you make something idiot-proof, the universe creates a better idiot.