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Re: Position

  • To: mathgroup at smc.vnet.net
  • Subject: [mg67672] Re: Position
  • From: bghiggins at ucdavis.edu
  • Date: Tue, 4 Jul 2006 01:57:30 -0400 (EDT)
  • References: <e8ashi$g8j$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Bruce,

After submiiting my post I realized you could also simply do

myTest = StringMatchQ[#, "abc" ~~ __] &

Position[str, _String?myTest]

Brian

Bruce Colletti wrote:
> Let X be a list of strings having diverse lengths (some are the null string "").
>
> What command returns the position in X of the first element that starts with "abcd"?
>
> Presumably the command looks like Position[X,...,Heads->False], but my attempts have come up dry.  Although StringTake[Y,4]=="abcd" would seem to be part of the command, this fails when the string's length is less than 4.
> 
> Thankx.
> 
> Bruce


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