Mercurial > hg > octave-nkf
changeset 2274:9750746d7da5
[project @ 1996-05-24 04:06:42 by jwe]
Initial revision
author | jwe |
---|---|
date | Fri, 24 May 1996 04:06:42 +0000 |
parents | 5bc8dd06898d |
children | 38fea6d34daf |
files | scripts/strings/split.m |
diffstat | 1 files changed, 76 insertions(+), 0 deletions(-) [+] |
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line diff
new file mode 100644 --- /dev/null +++ b/scripts/strings/split.m @@ -0,0 +1,76 @@ +# Copyright (C) 1996 John W. Eaton +# +# 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. + +function m = split (s, t) + +# usage: m = split (s, t) +# +# Divides the string S into pieces separated by T, and stores the +# pieces as the rows of M (padded with blanks to form a valid +# matrix). + +# Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>. + + if (nargin != 2) + usage ("split (s, t)"); + endif + + if (isstr (s) && isstr (t)) + + l_s = length (s); + l_t = length (t); + + if (l_s < l_t) + error ("split: s must not be shorter than t"); + endif + + if (l_t == 0) + ind = 1 : (l_s + 1); + else + ind = findstr (s, t, 0); + if (length (ind) == 0) + m = s; + return; + endif + ind = [1 - l_t, ind, l_s + 1]; + endif + + cmd = ""; + + limit = length (ind) - 1; + + for k = 1 : limit + + range = (ind (k) + l_t) : ind (k + 1) - 1; + + if (k != limit) + cmd = sprintf ("%s\"%s\", ", cmd, s (range)); + else + cmd = sprintf ("%s\"%s\"", cmd, s (range)); + endif + + endfor + + m = eval (sprintf ("str2mat (%s);", cmd)); + + + else + error ("split: both s and t must be strings"); + endif + +endfunction