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Re: again strsplit [message #37734 is a reply to message #37730]

Thu, 22 January 2004 06:59

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

savoieNoSpam@nsidc.org wrote:
> Reimar Bauer <R.Bauer@fz-juelich.de> writes:
>
>
>> Hi all
>>
>> I have learned the /regex keyword but who could explain this:
>>
>> a='ABC$DEF'
>> print,strsplit(a,'$',/extr)
>>
>> ABC DEF
>>
>> and
>>
>> a='ABC$DEF'
>> print,strsplit(a,'$',/extr,/regex)
>>
>> ABC$DEF
>>
>>
>> Why is this differnt?
>
>
> Because '$' is the regular expression for end of line. If you want to have
> the actual dollar sign, you need to escape it with a back slash first.
>
> IDL> print,strsplit(a,'\$',/extr,/regex)
> ABC DEF
>
> Helps?
>
> Matt
>

Dear all

Thanks,

Is there a function available which returns the key codes of regular
expression signs.

This is now a bit complicated. I have to use /regex because the
separation could be done by more as one sign. But if it is a $ or
something else of a regex code I have to add a \ sign in front.

If a variable is used for the separator have I always to test on this?

The old str_sep routine without regex was much clearer.

regards
Reimar

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[Message index]

		Re: again strsplit By: tam on Thu, 22 January 2004 08:11
		Re: again strsplit By: R.Bauer on Thu, 22 January 2004 06:59
		Re: again strsplit By: savoieNoSpam on Wed, 21 January 2004 08:42
		Re: again strsplit By: tam on Wed, 21 January 2004 06:48
		Re: again strsplit By: btt on Wed, 21 January 2004 06:46
		Re: again strsplit By: Paolo Grigis on Wed, 21 January 2004 06:45

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