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str2mat.m
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1999-11-19
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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.
## -*- texinfo -*-
## @deftypefn {Function File} {} str2mat (@var{s_1}, @dots{}, @var{s_n})
## Return a matrix containing the strings @var{s_1}, @dots{}, @var{s_n} as
## its rows. Each string is padded with blanks in order to form a valid
## matrix.
##
## @strong{Note:}
## This function is modelled after @sc{Matlab}. In Octave, you can create
## a matrix of strings by @code{[@var{s_1}; @dots{}; @var{s_n}]} even if
## the strings are not all the same length.
## @end deftypefn
## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>
## Adapted-By: jwe
function retval = str2mat (...)
if (nargin == 0)
usage ("str2mat (s1, ...)");
endif
nc = 0;
nr = 0;
va_start ();
nr = zeros (nargin, 1);
nc = zeros (nargin, 1);
for k = 1 : nargin
s = va_arg ();
if (isstr (s))
[nr(k), nc(k)] = size (s);
else
error ("str2mat: all arguments must be strings");
endif
endfor
tmp = find (nr == 0);
if (! isempty (tmp))
nr(tmp) = 1;
endif
retval_nr = sum (nr);
retval_nc = max (nc);
retval = setstr (ones (retval_nr, retval_nc) * toascii (" "));
va_start ();
row_offset = 0;
for k = 1 : nargin
s = va_arg ();
if (nc(k) > 0)
retval ((row_offset + 1) : (row_offset + nr(k)), 1:nc(k)) = s;
endif
row_offset = row_offset + nr(k);
endfor
endfunction