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Re: Regular expression [message #53872 is a reply to message #36958]

Fri, 04 May 2007 08:21

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

On Fri, 4 May 2007, Lasse Clausen wrote:

> Hi there,
>
> why does
>
> print, stregex('[', '[\[]')
>
> work, i.e. produce 0, whereas
>

You are searching for \ or [ ==> found.

> print, stregex(']', '[\]]')
>
> prints -1?
>

You are searching for \ followed by ] ==> not found.

> print, stregex(']', '\]')
>
> works (i.e. prints 0).
>

You are searching for ] ==> found.

\ loses its 'escape char' meaning in a bracket expression, and becomes an
ordinary character.

regards,
lajos

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[Message index]

		regular expressions (parsing strings) By: setthivoine you on Wed, 12 November 2003 12:04
		Re: Regular expression By: Foldy Lajos on Fri, 04 May 2007 11:13
		Re: Regular expression By: James Kuyper on Fri, 04 May 2007 10:44
		Re: Regular expression By: lasse on Fri, 04 May 2007 09:36
		Re: Regular expression By: Allan Whiteford on Tue, 08 May 2007 05:10
		Re: Regular expression By: Foldy Lajos on Fri, 04 May 2007 09:04
		Re: Regular expression By: Allan Whiteford on Fri, 04 May 2007 08:56
		Re: Regular expression By: lasse on Fri, 04 May 2007 08:46
		Re: Regular expression By: Allan Whiteford on Fri, 04 May 2007 08:41
		Re: Regular expression By: Foldy Lajos on Fri, 04 May 2007 08:21

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