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dezero.m
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1999-03-05
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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: dezero (s)
##
## Remove trailing blank entries and all zero entries from the string s.
## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>
## Adapted-By: jwe
## Adapted from deblank by A. S. Hodel (a.s.hodel@eng.auburn.edu)
## (the name dezero is a reference to the Fermilab D0 experiment,
## where my sister did her PhD research)
function t = dezero (s)
# delete the next line if you're stubbornly going to use dezero.
error("dezero is no longer supported.");
if (nargin != 1)
usage ("dezero (s)");
elseif (isstr (s))
save_val = implicit_str_to_num_ok;
implicit_str_to_num_ok = 1;
[nr, nc] = size (s);
len = nr * nc;
if (len == 0)
t = s;
else
s = reshape (s, 1, len);
# need to remove zeros first, then call deblank
s = 1*s;
t = deblank(setstr(s(find(s != 0) )));
endif
implicit_str_to_num_ok = save_val;
else
error ("dezero: expecting string argument");
endif
endfunction