morreale@bierstadt.scd.ucar.edu (Peter W. Morreale) (06/14/91)
I'm about to attempt to implement a routine which will perform logical
operations on strings (ie: words). I'd be grateful for any pointers to
established routines (SunOS) , documents, etc....
To be more specific, I'm writing a small simple database application in which
each entry has a list of keywords associated with it. I'd like to allow
the user to enter a search string which could contain predefined "logical"
characters. ie:
Keywords: aaa bbb ccc
Search string: aaa | ccc
With the "|" being defined as a logical OR, the routine would return
TRUE. Similarly:
Search string: aaa & ddd | bbb
would also return TRUE.
Even just a small discussion on how to go about implementing such a
routine would be greatly appreciated.
(BTW: I'm not real interested in interfacing to existing databases,
this is mostly for my own edification..... )
Thanks,
-PWM
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Peter W. Morreale email: morreale@ncar.ucar.edu
Nat'l Center for Atmos Research voice: (303) 497-1293
Scientific Computing Division