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Re: find position in a list made by string by searching incomplete string

  • To: mathgroup at smc.vnet.net
  • Subject: [mg130350] Re: find position in a list made by string by searching incomplete string
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Thu, 4 Apr 2013 22:28:55 -0400 (EDT)
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  • Delivered-to: l-mathgroup@wolfram.com
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On 4/3/13 at 10:50 PM, jougraw at gmail.com (Joug Raw) wrote:

>I have a list of strings like list1={{"a", "b    something", "a",
>"a", "b", "c", "b"} In this list, 'something' is a sting that I will
>not know in advanced and there are several spaces between the 'b'
>and the 'something' in one string. The number of the spaces is
>unknown.

>I want to find out the position of the this "b   something" sting in
>the list. So, I did,

>Position[list1, "b*"]

>and I also tried, Position[list1,"b"~~___ ]

>both of them gave me {} as results.

In[1]:= list1 = {"a", "b    something", "a", "a", "b", "c", "b"};

In[2]:= Position[Length /@ StringCases[list1, "b" ~~ __], 1]

Out[2]= {{2}}




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