Re: /STRING

Gene LeFave wrote:
> In my case I was parsing text from an http post and my code "assumed" that
> an &# was always followed by another character.
>
> Just seemed to me that /string ought not go negative.

I have definitely seen it used that way, to "back up" in a string.

Cheers,
Elizabeth

>
> On 15 Mar 2007 at 7:53, Leon Wagner wrote:
>
>> I can see how this would be confusing as "u2" is supposed to be an unsigned
>> integer.
>>
>>> -----Original Message-----
>>> From: sftalk-bounce_at_forth.com
>>> [mailto:sftalk-bounce_at_forth.com] On Behalf Of Rick VanNorman
>>> Sent: Thursday, March 15, 2007 7:50 AM
>>> To: sftalk_at_forth.com
>>> Subject: [sftalk] Re: /STRING
>>>
>>> The behavior is as defined by DPANS:
>>>
>>> Adjust the character string at c-addr1 by n characters. The resulting
>>> character string, specified by c-addr2 u2, begins at c-addr1 plus n
>>> characters and is u1 minus n characters long.
>>>
>>> I actually use it when parsing strings, using the /STRING function
>>> until it returns a negative value.
>>>
>>> rick
>>>
>>> On 3/15/07, Gene LeFave <gene_at_tekdata.com> wrote:
>>>> I just got stung by a bug caused by calling /STRING with a
>>> value greater
>>>> then the string length. Seems to me that /STRING ought to
>>> check for that
>>>> and not return a string length <0.
>>>>
>>>> On the other hand I can see how someone might expect that
>>> behavior and
>>>> use /STRING for something other then strings.
>>>>
>>>> Just wondering what other folks thought.
>>>>
>>>> Gene
>>>>
>>>>
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>
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