Re: regular expressions

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1 total messages Started by Bennett Todd Mon, 18 Sep 1989 21:27

#613

Author: Bennett Todd
Date: Mon, 18 Sep 1989 21:27

21 lines
1007 bytes

>   case $domain in
>   \(.*\)\.\(.*\)\.edu)
>	   department=\1
>	   university=\2
>   *)
>	   # ...
>   esac

Hmm. I don't mind the current notion of "case" using globbing rather
than r.e. matching. expr(1) makes r.e. substitution available easily
enough. I'd rather see expr(1) built in for performance reasons (like
echo, test, etc.) than see the definition of the case construct changed,
or see another extended case construct added.

By the way, I would code the above example:

	department=`expr $domain : '\([^.]*\)\..*$'`
	university=`expr $domain : '[^.]*\.\([^.]*\)\..*$'

-Bennett
bet@orion.mc.duke.edu

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