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Re: HDF Data sets containg strings? [message #13306 is a reply to message #13302]

Mon, 02 November 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Martin Schultz (mgs@io.harvard.edu) writes:

> prompts me to adevrtise my str2byte function that may help you getting byte
> arrays with fixed length from strings with variable length. Please find it
> attached below.

I can see some applications for Martin's Str2Byte function,
but I wanted to remind you of something I learned from Ray
Sterner a long time ago: if you have a string array
with strings of variable lengths, you can easily turn that
into a 2D byte array, in which each string is as long as
the longest string in the array by using the BYTE function.

a = StrArr(4)
a[0] = 'hello'
a[1] = 'my name is coyote'
a[2] = 'what is yours?'
a[3] = 'bye'
done = Byte(a)
Help, done
DONE BYTE = Array[17, 4]

Not only that, but they come back out properly!

Print, String(done[*,0])
hello

Print, StrLen(String(done[*,0]))
5

Cheers,

David

----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
Phone: 970-221-0438, Toll-Free Book Orders: 1-888-461-0155
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: HDF Data sets containg strings? By: Richard Penrose on Mon, 02 November 1998 00:00
		Re: HDF Data sets containg strings? By: davidf on Mon, 02 November 1998 00:00
		Re: HDF Data sets containg strings? By: Martin Schultz on Mon, 02 November 1998 00:00
		Re: HDF Data sets containg strings? By: davidf on Sun, 01 November 1998 00:00

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