| Re: idl5.3 create_struct() [message #18502 is a reply to message #18497] |
Wed, 05 January 2000 00:00   |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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Liam Gumley <Liam.Gumley@ssec.wisc.edu> writes:
> "R.Bauer" wrote:
>> I was very surprised and afraid this morning about the definition
>> changes of possible signs on tagname definitions.
>>
>> The only non_alphanumeric signs which are allowed in the new version is
>> '$' and '_'.
>> The '!' sign is only defined for the first place.
>>
>> a=create_struct('test@core',1)
>> % CREATE_STRUCT: Illegal tag name: test@core.
>> % Execution halted at: $MAIN$
>>
>> I have had no information about such changes I don't found any hint's in
>> the what's new topics.
>
> I noticed the same thing in the IDL 5.3 beta release in September 1999.
> RSI technical support told me this was a *bug* in IDL prior to version
> 5.3. According to the IDL documentation, structure tag names must
> conform to the same rules as variable names. As far back as IDL 5.1,
> this was documented in 'Building IDL Applications/Structures/Creating
> and Defining Structures':
It's pretty funny too. Try these with an older version of IDL:
a = create_struct('(1)', 1)
a = create_struct('1', 1)
a = create_struct('.', 1)
That's just not right. Pretty cool though.
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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