Hi Bob and others, as far as I know there is currently no fully reliable test available that could tell if a specific hash key is already used.
The 'type' function returns "string" if a hash key is not used. But it also returns "string" if it is used and the value is a string value. The problem is that you can't distinguish between a defined key with an empty string value and an undefined key. It's clear that a change in the behaviour of the type function could break existing scripts. So this shouldn't be done. But maybe an option could be added for testing hash keys (and maybe also other array elements). And with this option 'type' would return either "undef" or the actual type of the value if it is defined. Regards, Rolf -- Rolf Huehne Postdoc Leibniz Institute for Age Research - Fritz Lipmann Institute (FLI) Beutenbergstrasse 11 07745 Jena, Germany Phone: +49 3641 65 6205 Fax: +49 3641 65 6210 E-Mail: rhue...@fli-leibniz.de Website: http://www.fli-leibniz.de Scientific Director: Prof. Dr. K. Lenhard Rudolph Head of Administration: Dr. Daniele Barthel Chairman of Board of Trustees: Dennys Klein VAT No: DE 153 925 464 Register of Associations: No. 230296, Amtsgericht Jena Tax Number: 162/141/08228 ------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF _______________________________________________ Jmol-developers mailing list Jmol-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jmol-developers
