Mercurial > hg > octave-nkf
annotate scripts/general/int2str.m @ 7926:d74f996e005d
__magick_read__.cc: configuration and style fixes
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 14 Jul 2008 16:00:09 -0400 |
| parents | 3422f39573b1 |
| children | 502e58a0d44f |
| rev | line source |
|---|---|
| 7017 | 1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2003, |
| 2 ## 2004, 2005, 2006, 2007 John W. Eaton | |
| 2313 | 3 ## |
| 4 ## This file is part of Octave. | |
| 5 ## | |
| 6 ## Octave is free software; you can redistribute it and/or modify it | |
| 7 ## under the terms of the GNU General Public License as published by | |
| 7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
| 9 ## your option) any later version. | |
| 2313 | 10 ## |
| 11 ## Octave is distributed in the hope that it will be useful, but | |
| 12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 ## General Public License for more details. | |
| 15 ## | |
| 16 ## You should have received a copy of the GNU General Public License | |
| 7016 | 17 ## along with Octave; see the file COPYING. If not, see |
| 18 ## <http://www.gnu.org/licenses/>. | |
| 245 | 19 |
| 3361 | 20 ## -*- texinfo -*- |
| 21 ## @deftypefn {Function File} {} int2str (@var{n}) | |
| 6623 | 22 ## Convert an integer to a string. This function is not very flexible. |
| 6555 | 23 ## For better control over the results, use @code{sprintf} |
| 24 ## (@pxref{Formatted Output}). | |
| 5642 | 25 ## @seealso{sprintf, num2str} |
| 3361 | 26 ## @end deftypefn |
| 4 | 27 |
| 2314 | 28 ## Author: jwe |
| 29 | |
| 2311 | 30 function retval = int2str (x) |
| 4 | 31 |
| 32 if (nargin == 1) | |
| 4878 | 33 x = round (real(x)); |
| 34 sz = size(x); | |
| 35 nd = ndims (x); | |
| 4305 | 36 nc = columns (x); |
| 37 if (nc > 1) | |
| 4878 | 38 idx = cell (); |
| 39 for i = 1:nd | |
| 7208 | 40 idx{i} = 1:sz(i); |
| 4878 | 41 endfor |
| 42 idx(2) = 1; | |
| 43 ifmt = get_fmt (x(idx{:}), 0); | |
| 44 idx(2) = 2:sz(2); | |
| 45 rfmt = get_fmt (x(idx{:}), 2); | |
|
7540
3422f39573b1
strcat.m: Matlab compatibility, with cstrcat.m replacing conventional strcat.m.
Ben Abbott <bpabbott@mac.com>
parents:
7411
diff
changeset
|
46 fmt = cstrcat (ifmt, repmat (rfmt, 1, nc-1), "\n") |
| 4303 | 47 else |
|
7540
3422f39573b1
strcat.m: Matlab compatibility, with cstrcat.m replacing conventional strcat.m.
Ben Abbott <bpabbott@mac.com>
parents:
7411
diff
changeset
|
48 fmt = cstrcat (get_fmt (x, 0), "\n"); |
| 4303 | 49 endif |
| 4878 | 50 tmp = sprintf (fmt, permute (x, [2, 1, 3 : nd])); |
| 4305 | 51 tmp(end) = ""; |
| 4229 | 52 retval = split (tmp, "\n"); |
| 4 | 53 else |
| 6046 | 54 print_usage (); |
| 4 | 55 endif |
| 56 | |
| 57 endfunction | |
| 4305 | 58 |
| 59 function fmt = get_fmt (x, sep) | |
| 60 | |
| 61 t = x(:); | |
| 62 t = t(t != 0); | |
| 63 if (isempty (t)) | |
| 64 ## All zeros. | |
| 65 fmt = sprintf ("%%%dd", 1 + sep); | |
| 66 else | |
| 67 ## Maybe have some zeros. | |
| 68 nan_inf = isinf (t) | isnan (t); | |
| 69 if (any (nan_inf)) | |
| 70 if (any (t(nan_inf) < 0)) | |
| 71 min_fw = 4 + sep; | |
| 72 else | |
| 73 min_fw = 3 + sep; | |
| 74 endif | |
| 75 else | |
| 76 min_fw = 1 + sep; | |
| 77 endif | |
| 78 t = t(! nan_inf); | |
| 79 if (isempty (t)) | |
| 80 ## Only zeros, Inf, and NaN. | |
| 81 fmt = sprintf ("%%%dd", min_fw); | |
| 82 else | |
| 83 ## Could have anything. | |
| 84 tfw = floor (log10 (abs (t))) + 1 + sep; | |
| 4309 | 85 fw = max (tfw); |
| 4305 | 86 if (any (t(tfw == fw) < 0)) |
| 87 fw++; | |
| 88 endif | |
| 89 fmt = sprintf ("%%%dd", max (fw, min_fw)); | |
| 90 endif | |
| 91 endif | |
| 92 | |
| 5642 | 93 endfunction |
| 7411 | 94 |
| 95 %!assert(strcmp (int2str (-123), "-123") && strcmp (int2str (1.2), "1")); | |
| 96 | |
| 97 %!error int2str (); | |
| 98 | |
| 99 %!error int2str (1, 2); | |
| 100 |