Mercurial > hg > octave-lyh

annotate scripts/strings/strrep.m @ 2311:2b5788792cad

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[project @ 1996-07-11 20:18:38 by jwe]
author jwe
date Thu, 11 Jul 1996 20:18:38 +0000
parents 5cffc4b8de57
children 204cc7db6f4a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2303
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
1 ### Copyright (C) 1995, 1996 Kurt Hornik
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
2 ###
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
3 ### This file is part of Octave.
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
4 ###
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
5 ### Octave is free software; you can redistribute it and/or modify it
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
6 ### under the terms of the GNU General Public License as published by
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
7 ### the Free Software Foundation; either version 2, or (at your option)
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
8 ### any later version.
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
9 ###
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
10 ### Octave is distributed in the hope that it will be useful, but
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
11 ### WITHOUT ANY WARRANTY; without even the implied warranty of
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
12 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
13 ### General Public License for more details.
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
14 ###
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
15 ### You should have received a copy of the GNU General Public License
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
16 ### along with Octave; see the file COPYING. If not, write to the Free
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
18 ### 02111-1307, USA.
2288
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
19
2311
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
20 ## usage: strrep (s, x, y)
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
21 ##
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
22 ## Replace all occurences of the substring x of the string s with the
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
23 ## string y.
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
24
2288
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
25 function t = strrep (s, x, y)
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
26
2311
2b5788792cad [project @ 1996-07-11 20:18:38 by jwe]
jwe
parents: 2303
diff changeset
27 ## Written by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> on 1994/10/11
2303
5cffc4b8de57 [project @ 1996-06-24 09:15:24 by jwe]
jwe
parents: 2288
diff changeset
28 ## Updated by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> on 1996/05/25
2288
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
29
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
30 if (nargin <> 3)
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
31 usage ("strrep (s, x, y)");
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
32 endif
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
33
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
34 if (! (isstr (s) && isstr (x) && isstr (y)))
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
35 error ("strrep: all arguments must be strings");
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
36 endif
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
37
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
38 if (length (x) > length (s) || isempty (x))
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
39 t = s;
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
40 return;
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
41 endif
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
42
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
43 ind = findstr (s, x, 0);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
44 len = length (ind);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
45 if (len == 0)
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
46 t = s;
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
47 else
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
48 s = toascii (s);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
49 x = toascii (x);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
50 y = toascii (y);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
51
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
52 l_x = length (x);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
53 tmp = s (1 : ind (1) - 1);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
54 t = [tmp, y];
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
55 for k = 1 : len - 1
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
56 tmp = s (ind (k) + l_x : ind (k+1) - 1);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
57 t = [t, tmp, y];
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
58 endfor
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
59 tmp = s (ind(len) + l_x : length (s));
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
60 t = [t, tmp];
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
61 t = setstr (t);
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
62 endif
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
63
039cda4dc95a [project @ 1996-06-05 23:21:52 by jwe]
jwe
parents:
diff changeset
64 endfunction