octave-antonio: scripts/strings/index.m annotate

annotate scripts/strings/index.m @ 20164:df437a52bcaf stable

doc: Update more docstrings to have one sentence summary as first line. Reviewed miscellaneous, sparse, strings in scripts directory. * scripts/miscellaneous/bzip2.m, scripts/miscellaneous/citation.m, scripts/miscellaneous/compare_versions.m, scripts/miscellaneous/computer.m, scripts/miscellaneous/debug.m, scripts/miscellaneous/dir.m, scripts/miscellaneous/edit.m, scripts/miscellaneous/error_ids.m, scripts/miscellaneous/fileattrib.m, scripts/miscellaneous/fullfile.m, scripts/miscellaneous/genvarname.m, scripts/miscellaneous/gzip.m, scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/news.m, scripts/miscellaneous/open.m, scripts/miscellaneous/parseparams.m, scripts/miscellaneous/recycle.m, scripts/miscellaneous/run.m, scripts/miscellaneous/swapbytes.m, scripts/miscellaneous/tar.m, scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m, scripts/miscellaneous/what.m, scripts/sparse/bicg.m, scripts/sparse/bicgstab.m, scripts/sparse/cgs.m, scripts/sparse/colperm.m, scripts/sparse/eigs.m, scripts/sparse/etreeplot.m, scripts/sparse/gmres.m, scripts/sparse/gplot.m, scripts/sparse/ichol.m, scripts/sparse/ilu.m, scripts/sparse/pcg.m, scripts/sparse/pcr.m, scripts/sparse/qmr.m, scripts/sparse/spaugment.m, scripts/sparse/spconvert.m, scripts/sparse/spdiags.m, scripts/sparse/spfun.m, scripts/sparse/spones.m, scripts/sparse/sprandsym.m, scripts/sparse/spstats.m, scripts/sparse/spy.m, scripts/sparse/svds.m, scripts/sparse/treelayout.m, scripts/sparse/treeplot.m, scripts/strings/base2dec.m, scripts/strings/bin2dec.m, scripts/strings/blanks.m, scripts/strings/cstrcat.m, scripts/strings/deblank.m, scripts/strings/dec2base.m, scripts/strings/dec2bin.m, scripts/strings/dec2hex.m, scripts/strings/findstr.m, scripts/strings/hex2dec.m, scripts/strings/index.m, scripts/strings/isletter.m, scripts/strings/isstrprop.m, scripts/strings/mat2str.m, scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m, scripts/strings/rindex.m, scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strchr.m, scripts/strings/strjoin.m, scripts/strings/strjust.m, scripts/strings/strmatch.m, scripts/strings/strsplit.m, scripts/strings/strtok.m, scripts/strings/strtrim.m, scripts/strings/strtrunc.m, scripts/strings/substr.m, scripts/strings/untabify.m, scripts/time/datenum.m: Update more docstrings to have one sentence summary as first line.

author	Rik <rik@octave.org>
date	Mon, 04 May 2015 14:22:02 -0700
parents	9fc020886ae9
children

rev	line source
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17744 diff changeset	1 ## Copyright (C) 1996-2015 Kurt Hornik
2325 b5568c31ee2c [project @ 1996-07-15 22:20:21 by jwe] jwe parents: 2314 diff changeset	2 ##
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	3 ## This file is part of Octave.
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	4 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	6 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6901 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6901 diff changeset	8 ## your option) any later version.
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	9 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	13 ## General Public License for more details.
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	14 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2311 diff changeset	15 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6901 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6901 diff changeset	17 ## <http://www.gnu.org/licenses/>.
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	18
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	19 ## -- texinfo --
10793 be55736a0783 Grammarcheck the documentation from m-files. Rik <octave@nomad.inbox5.com> parents: 10409 diff changeset	20 ## @deftypefn {Function File} {} index (@var{s}, @var{t})
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	21 ## @deftypefnx {Function File} {} index (@var{s}, @var{t}, @var{direction})
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	22 ## Return the position of the first occurrence of the string @var{t} in the
20164 df437a52bcaf doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	23 ## string @var{s}, or 0 if no occurrence is found.
df437a52bcaf doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	24 ##
df437a52bcaf doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	25 ## @var{s} may also be a string array or cell array of strings.
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	26 ##
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	27 ## For example:
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3361 diff changeset	28 ##
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	29 ## @example
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	30 ## @group
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	31 ## index ("Teststring", "t")
14402 cbcaf5602469 doc: Make spacing nicer for Strings chapter of manual. Rik <octave@nomad.inbox5.com> parents: 14363 diff changeset	32 ## @result{} 4
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	33 ## @end group
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	34 ## @end example
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3361 diff changeset	35 ##
17281 bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 14402 diff changeset	36 ## If @var{direction} is @qcode{"first"}, return the first element found.
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 14402 diff changeset	37 ## If @var{direction} is @qcode{"last"}, return the last element found.
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	38 ##
4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	39 ## @seealso{find, rindex}
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3240 diff changeset	40 ## @end deftypefn
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	41
5428 2a16423e4aa0 [project @ 2005-08-23 18:38:27 by jwe] jwe parents: 5307 diff changeset	42 ## Author: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at>
2355 c9f70d39255f [project @ 1996-08-20 23:30:54 by jwe] jwe parents: 2325 diff changeset	43 ## Adapted-By: jwe
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	44 ## This is patterned after the AWK function of the same name.
2314 949ab8eba8bc [project @ 1996-07-12 03:58:02 by jwe] jwe parents: 2313 diff changeset	45
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	46 function n = index (s, t, direction = "first")
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	47
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	48 if (nargin < 2 \|\| nargin > 3)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5443 diff changeset	49 print_usage ();
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	50 endif
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	51
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	52 if (ischar (s))
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	53 if (! isrow (s))
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	54 s = cellstr (s); # Handle string arrays by conversion to cellstr
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	55 endif
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	56 elseif (! iscellstr (s))
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	57 error ("index: S must be a string, string array, or cellstr");
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	58 endif
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	59
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	60 f = strfind (s, t);
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	61 if (isempty (f))
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	62 f = 0;
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	63 elseif (iscell (f))
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	64 f(cellfun ("isempty", f)) = {0};
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	65 endif
2325 b5568c31ee2c [project @ 1996-07-15 22:20:21 by jwe] jwe parents: 2314 diff changeset	66
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	67 direction = tolower (direction);
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	68
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	69 if (strcmp (direction, "first"))
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	70 if (iscell (f))
12931 cefd568ea073 Replace function handles with function names in cellfun calls for 15% speedup. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	71 n = cellfun ("min", f);
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	72 else
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	73 n = f(1);
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	74 endif
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	75 elseif (strcmp (direction, "last"))
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	76 if (iscell (f))
12931 cefd568ea073 Replace function handles with function names in cellfun calls for 15% speedup. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	77 n = cellfun ("max", f);
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	78 else
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	79 n = f(end);
10409 a87afd063e7d optimize index (call strfind) Jaroslav Hajek <highegg@gmail.com> parents: 9051 diff changeset	80 endif
3911 8389e78e67d4 [project @ 2002-04-28 02:15:38 by jwe] jwe parents: 3759 diff changeset	81 else
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	82 error ('index: DIRECTION must be either "first" or "last"');
3911 8389e78e67d4 [project @ 2002-04-28 02:15:38 by jwe] jwe parents: 3759 diff changeset	83 endif
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	84
2271 707b9396ad2c [project @ 1996-05-24 02:22:01 by jwe] jwe parents: diff changeset	85 endfunction
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	86
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	87
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	88 %!assert (index ("foobarbaz", "b"), 4)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	89 %!assert (index ("foobarbaz", "z"), 9)
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	90
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	91 %!assert (index ("astringbstringcstring", "s"), 2)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	92 %!assert (index ("astringbstringcstring", "st"), 2)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	93 %!assert (index ("astringbstringcstring", "str"), 2)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	94 %!assert (index ("astringbstringcstring", "string"), 2)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	95 %!assert (index ("abc---", "abc+++"), 0)
6139 4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	96
4da9f63d5237 [project @ 2006-11-03 18:39:06 by jwe] jwe parents: 6046 diff changeset	97 ## test everything out in reverse
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	98 %!assert (index ("astringbstringcstring", "s", "last"), 16)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	99 %!assert (index ("astringbstringcstring", "st", "last"), 16)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	100 %!assert (index ("astringbstringcstring", "str", "last"), 16)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	101 %!assert (index ("astringbstringcstring", "string", "last"), 16)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14327 diff changeset	102 %!assert (index ("abc---", "abc+++", "last"), 0)
7411 83a8781b529d [project @ 2008-01-22 21:52:25 by jwe] jwe parents: 7017 diff changeset	103
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	104 %!test
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	105 %! str = char ("Hello", "World", "Goodbye", "World");
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	106 %! assert (index (str, "o"), [5; 2; 2; 2]);
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	107 %! assert (index (str, "o", "last"), [5; 2; 3; 2]);
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	108 %! str = cellstr (str);
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	109 %! assert (index (str, "o"), [5; 2; 2; 2]);
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	110 %! assert (index (str, "o", "last"), [5; 2; 3; 2]);
7411 83a8781b529d [project @ 2008-01-22 21:52:25 by jwe] jwe parents: 7017 diff changeset	111
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	112 ## Test input validation
13289 1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	113 %!error index ()
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	114 %!error index ("a")
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	115 %!error index ("a", "b", "first", "d")
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	116 %!error index (1, "bar")
1a6537dbce7b Expand index,rindex functions to accept char array inputs Rik <octave@nomad.inbox5.com> parents: 12931 diff changeset	117 %!error index ("foo", "bar", 3)
7411 83a8781b529d [project @ 2008-01-22 21:52:25 by jwe] jwe parents: 7017 diff changeset	118

Mercurial > octave-antonio

annotate scripts/strings/index.m @ 20164:df437a52bcaf stable