Groups > comp.soft-sys.math.mathematica > #3001

Re: Using Cases or Position to Find Strings in a List of Strings

From	Patrick Scheibe <pscheibe@trm.uni-leipzig.de>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: Using Cases or Position to Find Strings in a List of Strings
Date	2011-06-07 12:13 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<isl4m3$7mb$1@smc.vnet.net> (permalink)

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Hi,

what about using StringCases and StringPosition?

Cheers
Patrick

On Tue, 2011-06-07 at 06:48 -0400, Gregory Lypny wrote:
> Hello everyone,
> 
> I have a list of strings called myListOfFilePaths and I want to find 
> which one of those strings ends in ".DS_Store" (a hidden file created by 
> the Mac OS).  I can pick it off using Select as
> 
> 	Select[myListOfFilePaths, StringMatchQ[#, ___ ~~ ".DS_Store" ~~ 
> EndOfString] &]
> 
> but I can't do it using Cases or Position
> 
> 	Cases[myListOfFilePaths, ___ ~~ ".DS_Store" ~~ EndOfString]
> 
> 	Position[myListOfFilePaths, ___ ~~ ".DS_Store" ~~ EndOfString]
> 
> despite the fact that Head[___ ~~ ".DS_Store" ~~ EndOfString] is StringExpression.  What am I doing wrong?
> 
> 	Regards,
> 
> 	Gregory
>

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Re: Using Cases or Position to Find Strings in a List of Strings Patrick Scheibe <pscheibe@trm.uni-leipzig.de> - 2011-06-07 12:13 +0000

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