Subject: sythetic procedure names From: Alexander Taranov <tay@xxxxxxxxxx> Date: Thu, 6 Apr 2000 18:46:14 +0400 (MSD) |
Holger Klawitter writes: > Hi, > > is there any way to get the value which is bound to a name if I have > the name as a string value? (I don't care about dynamic, lexical or > global-only context :-) > > The task is to write a function like this > (define (dispatch x y) ((string-append x "-" y))) > which apparently does not work as a string is not a function object > and ist not being looked up. (even symbols aren't). > As I have 8 tifferent values for x and 12 for y I would like to find > a better way than having to write a nested cond with 96 cases :-) > > Regards, > Holger Klawitter > -- > Holger Klawitter +49 (0)251 484 0637 > holger@xxxxxxxxxxxx http://www.klawitter.de/ > > > DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist > As far as i can understand you solution is below. But using eval in code other then read-eval-pring loops signals that something is wrong with program design --regards, alexander [tay@goliath MSXml]$ mzscheme Welcome to MzScheme version 53 (using locale), Copyright (c) 1995-98 PLT (Matthew Flatt) > (define (foo-bar) 'i-m-here) > (define (dispatch x y) ((eval (string->symbol (string-append x "-" y))))) > (dispatch "foo" "bar") i-m-here DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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