Mercurial > hg > octave-lyh
comparison scripts/strings/split.m @ 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 | |
| children | 6dedd4e0a82f |
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| 2273:5bc8dd06898d | 2274:9750746d7da5 |
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| 1 # Copyright (C) 1996 John W. Eaton | |
| 2 # | |
| 3 # This file is part of Octave. | |
| 4 # | |
| 5 # Octave is free software; you can redistribute it and/or modify it | |
| 6 # under the terms of the GNU General Public License as published by the | |
| 7 # Free Software Foundation; either version 2, or (at your option) any | |
| 8 # later version. | |
| 9 # | |
| 10 # Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 # for more details. | |
| 14 # | |
| 15 # You should have received a copy of the GNU General Public License | |
| 16 # along with Octave; see the file COPYING. If not, write to the Free | |
| 17 # Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 18 | |
| 19 function m = split (s, t) | |
| 20 | |
| 21 # usage: m = split (s, t) | |
| 22 # | |
| 23 # Divides the string S into pieces separated by T, and stores the | |
| 24 # pieces as the rows of M (padded with blanks to form a valid | |
| 25 # matrix). | |
| 26 | |
| 27 # Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>. | |
| 28 | |
| 29 if (nargin != 2) | |
| 30 usage ("split (s, t)"); | |
| 31 endif | |
| 32 | |
| 33 if (isstr (s) && isstr (t)) | |
| 34 | |
| 35 l_s = length (s); | |
| 36 l_t = length (t); | |
| 37 | |
| 38 if (l_s < l_t) | |
| 39 error ("split: s must not be shorter than t"); | |
| 40 endif | |
| 41 | |
| 42 if (l_t == 0) | |
| 43 ind = 1 : (l_s + 1); | |
| 44 else | |
| 45 ind = findstr (s, t, 0); | |
| 46 if (length (ind) == 0) | |
| 47 m = s; | |
| 48 return; | |
| 49 endif | |
| 50 ind = [1 - l_t, ind, l_s + 1]; | |
| 51 endif | |
| 52 | |
| 53 cmd = ""; | |
| 54 | |
| 55 limit = length (ind) - 1; | |
| 56 | |
| 57 for k = 1 : limit | |
| 58 | |
| 59 range = (ind (k) + l_t) : ind (k + 1) - 1; | |
| 60 | |
| 61 if (k != limit) | |
| 62 cmd = sprintf ("%s\"%s\", ", cmd, s (range)); | |
| 63 else | |
| 64 cmd = sprintf ("%s\"%s\"", cmd, s (range)); | |
| 65 endif | |
| 66 | |
| 67 endfor | |
| 68 | |
| 69 m = eval (sprintf ("str2mat (%s);", cmd)); | |
| 70 | |
| 71 | |
| 72 else | |
| 73 error ("split: both s and t must be strings"); | |
| 74 endif | |
| 75 | |
| 76 endfunction |