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Finding if a structure tag name is defined? [message #36709]

Tue, 14 October 2003 05:28

wmconnolley
Messages: 106
Registered: November 2000

Senior Member

I want to know if a given keyword has been passed down via _extra, so
I said "if (n_elements(e.c_linestyle) ne 0)" which of course doesn't
work because if it isn't there you can't say e.linestyle (bring on
perl...). I can use tag names to get all the tags, then search through
for a match, but that seems silly and ugly. What is the correct way
to find if a given structure has a certain tag in it? (And why
couldn't I find the answer buried within DF's site ;-)?

-W.

--
William M Connolley | wmc@bas.ac.uk | http://www.antarctica.ac.uk/met/wmc/
Climate Modeller, British Antarctic Survey | Disclaimer: I speak for myself
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[Message index]

		Finding if a structure tag name is defined? By: wmconnolley on Tue, 14 October 2003 05:28
		Re: Finding if a structure tag name is defined? By: wmconnolley on Mon, 20 October 2003 12:17
		Re: Finding if a structure tag name is defined? By: R.Bauer on Fri, 17 October 2003 13:36

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