Re: Finding the Position of Elements in a List that Contain a
- To: mathgroup at smc.vnet.net
- Subject: [mg102192] Re: Finding the Position of Elements in a List that Contain a
- From: Armand Tamzarian <mike.honeychurch at gmail.com>
- Date: Sat, 1 Aug 2009 03:57:55 -0400 (EDT)
- References: <h4ueun$ipq$1@smc.vnet.net>
On Jul 31, 4:53 am, Gregory Lypny <gregory.ly... at videotron.ca> wrote: > Hello everyone, > > Suppose I have a list of strings, say, sentences such as > > listOfStrings = {"The cat is here.", "It's not here.", = "Not in the > catalogue,", "Where is the cat?"} > > and a string I want to search for > > searchString = "cat" > > I can use StringCases to pick off the elements that contain the search = > string > > StringCases[listOfStrings, __ ~~ searchString ~~ ___] > > {{"The cat is here."}, {}, {"Not in the catalogue,"}, {"W= here is the > cat?"}} > > But what if I just want to know the positions of the elements that are = > hits? In this case, it's > > {1, 3, 4} > > If I use > > Position[listOfStrings, ___ ~~ theString ~~ ___] > > I get > > {} > > which is not what I expect. Also how can I have my searchString > treated like it is a word so that 3 is not one of the hits? > > Any hints would be much appreciated. > > Gregory this should work: Position[listOfStrings, _?(StringMatchQ[#, ___ ~~ "cat" ~~ ___] &)] Mike