[Cook] Comparing two strings for equality

[Jerry Pendergraft]

If string1 and string2 are simple strings the "in" would work but
the more normal operator would be
if [ matches [string1] [string2]] then ...

If string2 was a word list then the "in" would show if string1 matches any
of string2's content.

If string1 is a word list then you get completely different semantics:
Say string1 = a b c;
and string2 = d e f;

[in [string1] [string2] ] 
is equivalent to:
[in a         b c d e f]
It is not 
[in a b c     d e f]

Checking for membership of a set like that can be done a couple ways
using [stringset]. Check the user guide for examples.

hope that helps

On Wed, 18 Jun 2003, Jody Hagins wrote:

> 
> 
> I am a bit confused by how I should compare two strings for equality. 
> It seems that I should be using something like...
> 
> 
> if [in [string1] [string2]] then
> {
>   /* The two strings are equivalent */
> }
> 
> 
> but I am a bit bothered by the implicit meaning of "in" especially of
> [string2] happens to expand to a word list.  What am I missing?  I am
> simply looking for something that will tell me if two variables are
> identical (they both may be wordlists, or may be strings or whatever --
> I just want to compare them to see if they are the same).
> 
> 
> Thanks!
> 


-- 
Jerry Pendergraft                        jerry.pendergraft at endocardial.com
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