NEXTTOK

       Find the next occurance of any of a set of characters in a
       string and return the character which occurs next.

       text/strings

       tok = nexttok( strn, tokens )

       strn   -- string to be searched for sub/superscripts    in
       tokens -- string containing characters to be found.     in

       POSITION -- Set to a named variable to get position     out
                   of next token, or -1 if none found.
       /HELP    -- Print useful message and exit.

       tok    -- Contains the character among tokens which     out
                 occurs next in strn, or null '' if none found.

       nexttok( 'x^2 + N_j^3', '^_', position=pos ) returns '^' and sets
       pos to 1.

       $Id: nexttok.pro,v 1.4 2004/06/15 17:25:54 mcraig Exp $
       $Log: nexttok.pro,v $
       Revision 1.4  2004/06/15 17:25:54  mcraig
       Fixed bug in regular expression, changed array notation to square brackets
       Revision 1.3  1996/06/14 20:00:27  mcraig
       Updated Copyright info.
       Revision 1.2  1996/05/09 00:22:17  mcraig
       Generalized so that the next occurence of any of a set of characters will
       be returned.
       Revision 1.1  1996/01/31 18:41:06  mcraig
       Initial revision

       $Name: Rel_2_1_2 $

  Copyright (C) 1996 The Regents of the University of California, All
  Rights Reserved.  Written by Matthew W. Craig.
  See the file COPYRIGHT for restrictions on distrubting this code.
  This code comes with absolutely NO warranty; see DISCLAIMER for details.

[Home Page] [Software, Documentation] [IDL Documentation] [Quick Reference] [Feedback]