Re: scanr issue?

[Peter Dow <petercdow@xxxxxxxxx>]

Hi Eric,

Looks wrong, doesn't it?  The problem is, the "start" position is not 
what you would expect.  From the v7r3 RPGLE reference manual:

"The start position and length specify the substring of the source 
string to be searched. The start position
 defaults to 1 and the length defaults to the remainder of the source 
string. The result is always the
 position in the source string even if the starting position is specified."

The start position does NOT specify where %SCANR starts searching. The 
start plus the length defines the substring to be searched.

In your example,

pos = %scanr('x':source:6);

it scans positions 6 - 10, and finds the 'x' at position 8.

It does NOT start scanning at pos.6 and work backwards.

--
*Peter Dow* /
Dow Software Services, Inc.
909 793-9050
petercdow@xxxxxxxxx
pdow@xxxxxxxxxxxxxx

/
On 10/19/2022 3:41 PM, eric bothes wrote:
> i have the following code. They both return 8 rather then 8 and 4 
> respectively.
>
> does anyone else experience this.
>
> D source          s            200
> D pos             s             10  0
>
>   source = 'aaaxaaaxaa';
>   pos = %scanr('x':source);             should return 8
>   pos = %scanr('x':source:6);          should return 4
>   *inlr = *on;