Here's the result of inserting the 'probe' in the line noted below:

#{20}
** Script Error: Expected one of: binary! - not: string!
** Near: (probe substr rec1 (y + j) + 2054 1) > " "
>>

Does this seem to shed light on whether or not there is a fundamental 
difference between 
2.7.6 and the earlier version   ???

--- On Wed, 10/8/08, Anton Rolls <[EMAIL PROTECTED]> wrote:
From: Anton Rolls <[EMAIL PROTECTED]>
Subject: [REBOL] Re: Seems like a View 2.7.6 "if" statement issue ......???
To: [EMAIL PROTECTED]
Date: Wednesday, October 8, 2008, 2:59 AM

Hi John,

Gregg Irwin wrote:
> Hi John,

> JD>         if ((substr rec1 (y + j) + 2054 1) > " ") [  
<------------- error here

> JD> Error msg. from 2.7.6:
> 
> JD> ** Script Error: Expected one of: binary! - not: string!
> JD> ** Near: (substr rec1 (y + j) + 2054 1) > " "
> 
> More context would help, or a standalone example of the problem.
> 
> What is the source for SUBSTR, and what are the actual contents of
> rec1? It looks like rec1 is a binary value.
> 
> -- Gregg

Gregg is right, before jumping to conclusions and posting
an expression with a couple of unknowns in it, you should
find out what the actual values are when the expression is
evaluated. You can do this in two ways;

1)  print the values on the line just before.
2)  PROBE the values within the line.

eg: 1)

        print y + j
        ?? rec1
        probe substr rec1 (y + j) + 2054 1
        if ((substr rec1 (y + j) + 2054 1) > " ") [

eg: 2)

        if ((probe substr probe rec1 probe (y + j) + 2054 1) > " ") [

Where the error occurs should now be much clearer.

Using PROBE within the line is a bit safer than printing
before the line, when evaluating functions such as your
SUBSTR, because, should the function have a side effect,
the second evaluation may return a different result, and
so what is printed will be different to what causes the
error.

Regards,

Anton.
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