Re: how to check if a string variable contains a number or string?

[sk <noname@myob.com>]

Hi,

> Reinventing the wheel is never better than reusing 
> existing subprograms.

To some extent I agree, but consider 

1) Known format files ...
-- First-Name Last-Name Age ...
John Doe 42
Jane Doe q
         ^ Exception OK

2) A file of one type only ...
34.7
23.9
143.67
hello <- Exception Ok

3) A random file 
The quick brown Fox bought 3 carrots for $0.34

I would consider using exceptions to realize
that the number and price of carrots are numeric
amounts rather than just strings to be a bad 
technique !

The OP made no mention of fixed format, only
determining strings or numbers.



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