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Re: String Deletion

  • To: mathgroup at smc.vnet.net
  • Subject: [mg121522] Re: String Deletion
  • From: Thomas Dowling <thomasgdowling at gmail.com>
  • Date: Sun, 18 Sep 2011 04:12:23 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201109171027.GAA26051@smc.vnet.net>

Some possibilities:

list=List["Z:XBREG","Z:XBREH","Z:XBREI","Z:ZZ6P","Z:ZZ6Q","aye"];


Select[list, FreeQ[Characters@#,{___,":",___}]&]

or

Select[list,!StringMatchQ[#,StringExpression[__,":",___] ]&]

or

Select[list,StringFreeQ[#,StringExpression[__,":",___] ]&]

or

DeleteCases[list,_?(StringMatchQ[#,StringExpression[___,":",___] ]&)]


Tom Dowling

On Sat, Sep 17, 2011 at 11:27 AM, Don <donabc at comcast.net> wrote:

> Given a simple list of strings:
>
> list =  List["Z:XBREG","Z:XBREH","Z:XBREI","Z:ZZ6P","Z:ZZ6Q","aye"]
>
> how does one delete all the strings with a colon (:) anywhere in the
> string?
>
> DeleteCases[list, ___:___]  looks very logical  and should work,
> but of course it doesn't .
>
> Also, there is a StringCases function which would seem
> to correspond with the Cases function.  There is a
> DeleteCases function but no string counterpart, namely,
> DeleteString function.  Any reason for this?
>
> Thanks in advance.
>
>



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