Gregory wrote:
>the syntax you were trying to use is subscript indirection. It
>is used to access arrays when the array name and subscript (or
>subscripts) are stored in variables. Though there is a surface
>similarity between this syntax and that used to invoke an extrinsic
>function, function calls and array references are very different
>things in MUMPS.
Right. That is why I was suprised to find that it works at all in GT.M.
Did you try it in Cache' or MUMPS_V1 or MSM?
hmmm. I just tried another test with disappointing (but not unexpected) results.
s func="$$ucase^%zString" s [EMAIL PROTECTED]@("hello kevin") w Y
That gives an error - variable expected in this context.
However, the following does work.
s func="$$ucase^%zString" s @("Y="_func)@("hello kevin") w Y
The key in the examples I have tried seems to be that (in GT.M at least) if you
start out
with a standard form of indirection, such as argument indirection, then you can
use the
second @ to append subscripts or arguments to functions or subroutines.
>On Sep 4, 2005, at 3:54 PM, Jim Self wrote:
>
>> Kevin wrote:
>>
>>> I posted about this once before, and it seems that someone had an
>>> answer. But I can't find that post now.
>>>
>>
>> That was me. It was in response to Nancy's question about indirection.
>>
>>
>>> I am trying to use indirection (@) to execute a callback function.
>>> But it looks like the indirection is limited to 8 characters.
>>>
>>
>> The form of indirection you are trying is not standard nor is it
>> supported by GT.M.
>>
>>
>>>
>>> e.g.
>>>
>>> GTM>w $$SIMPLE^TMGTEST("hello")
>>> You said:hello
>>> GTM>set x="SIMPLE^TMGTEST"
>>>
>>> GTM>w [EMAIL PROTECTED]@("hello")
>>> %GTM-E-LABELMISSING, Label referenced but not defined: SIMPLE^T
>>>
>>> GTM>
>>>
>>>
>>> How should I do this?
>>>
>>
>> Try putting the "$$" inside the quotes.
>>
>> I don't think this is standard either (or documented in GT.M for
>> that matter), but this
>> works for me.
>>
>> s test="$$ucase^%zString" w @test@("hello kevin")
>>
>> HELLO KEVIN
>>
>> ---------------------------------------
>> Jim Self
---------------------------------------
Jim Self
Systems Architect, Lead Developer
VMTH Computer Services, UC Davis
(http://www.vmth.ucdavis.edu/us/jaself)
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