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Re: calling a structure tag as a variable? [message #79440 is a reply to message #79438]

Mon, 27 February 2012 09:06

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

David Fanning wrote:
> Paul van Delst writes:
>
>> How about something like:
>>
>>
>> PRO process_mystructure, $
>> mystructure, $ ; The structure
>> tag ; The tag name on which to operate
>>
>> tag_idx = WHERE(TAG_NAMES(mystructure) EQ tag, count)
>> IF ( count NE 1 ) THEN MESSAGE, 'Invalid input tag'
>>
>> ; Pull out data to operate on
>> data = mystructure.(tag_idx[0])
>>
>> ....operate on data...calling separate, generic procedure?
>>
>> ; Stick it back in the structure
>> mystructure.(tag_idx[0]) = data
>>
>> END
>
> I'd remember to make that tag UPPERCASE or you
> are *never* going to find it! ;-)

Good point.

tag_idx = WHERE(TAG_NAMES(mystructure) EQ STRUPCASE(tag), count)

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[Message index]

		Re: calling a structure tag as a variable? By: desertdryad on Mon, 27 February 2012 11:28
		Re: calling a structure tag as a variable? By: Paul Van Delst[1] on Mon, 27 February 2012 09:06
		Re: calling a structure tag as a variable? By: Lajos Foldy on Mon, 27 February 2012 08:55
		Re: calling a structure tag as a variable? By: David Fanning on Mon, 27 February 2012 08:58
		Re: calling a structure tag as a variable? By: Paul Van Delst[1] on Mon, 27 February 2012 08:52

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