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- ## Copyright (C) 1996 Kurt Hornik
- ##
- ## This file is part of Octave.
- ##
- ## Octave is free software; you can redistribute it and/or modify it
- ## under the terms of the GNU General Public License as published by
- ## the Free Software Foundation; either version 2, or (at your option)
- ## any later version.
- ##
- ## Octave is distributed in the hope that it will be useful, but
- ## WITHOUT ANY WARRANTY; without even the implied warranty of
- ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- ## General Public License for more details.
- ##
- ## You should have received a copy of the GNU General Public License
- ## along with Octave; see the file COPYING. If not, write to the Free
- ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- ## 02111-1307, USA.
-
- ## usage: rindex (s, t)
- ##
- ## Returns the position of the last occurence of the string T in the
- ## string S or 0 if no occurence is found.
- ##
- ## NOTE: this function does not work for arrays of strings.
-
- ## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>
- ## Adapted-By: jwe
-
- function n = rindex (s, t)
-
- ## This is patterned after the AWK function of the same name.
-
- if (nargin != 2)
- usage ("rindex (s, t)");
- endif
-
- n = 0;
-
- if (isstr (s) && isstr (t))
-
- l_s = length (s);
- l_t = length (t);
-
- if (l_t <= l_s)
- tmp = l_s - l_t + 1;
- for idx = tmp : -1 : 1
- if (strcmp (substr (s, idx, l_t), t))
- n = idx;
- return;
- endif
- endfor
- endif
-
- else
- error ("rindex: expecting string arguments");
- endif
-
- endfunction
-