/usr/share/octave/packages/3.2/statistics-1.0.10/__tbl_delim__.m is in octave-statistics 1.0.10-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | ## Copyright (C) 2008 Bill Denney
##
## This program 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 3 of the License, or
## (at your option) any later version.
##
## This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{d}, @var{err}] = } tblread (@var{d})
## Return the delimiter for tblread or tblwrite.
##
## The delimeter, @var{d} may be any single character or
## @itemize
## @item "space" " " (default)
## @item "tab" "\t"
## @item "comma" ","
## @item "semi" ";"
## @item "bar" "|"
## @end itemize
##
## @var{err} will be empty if there is no error, and @var{d} will be NaN
## if there is an error. You MUST check the value of @var{err}.
## @seealso{tblread, tblwrite}
## @end deftypefn
## Author: Bill Denney <bill@denney.ws>
function [d, err] = __tbl_delim__ (d)
## Check arguments
if nargin != 1
print_usage ();
endif
err = "";
## Format the delimiter
if ischar (d)
## allow for escape characters
d = sprintf (d);
if numel (d) > 1
## allow the word forms
s.space = " ";
s.tab = "\t";
s.comma = ",";
s.semi = ";";
s.bar = "|";
if ! ismember (d, fieldnames (s))
err = ["tblread: delimiter must be either a single " ...
"character or one of\n" ...
sprintf("%s, ", fieldnames (s){:})(1:end-2)];
d = NaN;
else
d = s.(d);
endif
endif
else
err = "delimiter must be a character";
d = NaN;
endif
if isempty (d)
err = "the delimiter may not be empty";
d = NaN;
endif
endfunction
## Tests
## The defaults
%!test
%! [d err] = __tbl_delim__ (" ");
%! assert (d, " ");
%! assert (err, "");
## Named delimiters
%!test
%! [d err] = __tbl_delim__ ("space");
%! assert (d, " ");
%! assert (err, "");
%!test
%! [d err] = __tbl_delim__ ("tab");
%! assert (d, sprintf ("\t"));
%! assert (err, "");
%!test
%! [d err] = __tbl_delim__ ("comma");
%! assert (d, ",");
%! assert (err, "");
%!test
%! [d err] = __tbl_delim__ ("semi");
%! assert (d, ";");
%! assert (err, "");
%!test
%! [d err] = __tbl_delim__ ("bar");
%! assert (d, "|");
%! assert (err, "");
## An arbitrary character
%!test
%! [d err] = __tbl_delim__ ("x");
%! assert (d, "x");
%! assert (err, "");
## An arbitrary escape string
%!test
%! [d err] = __tbl_delim__ ('\r');
%! assert (d, sprintf ('\r'))
%! assert (err, "");
## Errors
%!test
%! [d err] = __tbl_delim__ ("bars");
%! assert (isnan (d));
%! assert (! isempty (err));
%!test
%! [d err] = __tbl_delim__ ("");
%! assert (isnan (d));
%! assert (! isempty (err));
%!test
%! [d err] = __tbl_delim__ (5);
%! assert (isnan (d));
%! assert (! isempty (err));
%!test
%! [d err] = __tbl_delim__ ({"."});
%! assert (isnan (d));
%! assert (! isempty (err));
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