/usr/share/octave/packages/io-2.4.5/private/__POI_chk_sprt__.m is in octave-io 2.4.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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##
## 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{vargout} =} __POI_chk_sprt__ (@var{varargin})
## Undocumented internal function
##
## @seealso{}
## @end deftypefn
## Author: Philip Nienhuis <prnienhuis@users.sf.net>
## Created: 2014-10-31
function [chk, missing1, missing2] = __POI_chk_sprt__ (jcp, dbug=0)
chk = 0;
## First Check basic .xls (BIFF8) support
if (dbug > 1)
printf ("\nBasic POI (.xls) <poi-3> <poi-ooxml>:\n");
endif
entries1 = {{"apache-poi.", "poi-3"}, {"apache-poi-ooxml.", "poi-ooxml-3"}};
## Only under *nix we might use brute force: e.g., strfind (javaclasspath, classname)
## as javaclasspath is one long string. Under Windows however classpath is a cell array
## so we need the following more subtle, platform-independent approach:
[jpchk1, missing1] = chk_jar_entries (jcp, entries1, dbug);
missing1 = entries1 (find (missing1));
if (jpchk1 >= numel (entries1))
chk = 1;
if (dbug > 1)
printf (" => Apache (POI) OK\n");
endif
elseif (dbug > 1);
printf (" => Not all classes (.jar) required for POI in classpath\n");
endif
## Next, check OOXML support
if (dbug > 1)
printf ("\nPOI OOXML (.xlsx) <xbean/xmlbean> <poi-ooxml-schemas> <dom4j>:\n");
endif
entries2 = {{"xbean", "xmlbean"}, {"apache-poi-ooxml-schemas", "poi-ooxml-schemas"}, "dom4j"};
[jpchk2, missing2] = chk_jar_entries (jcp, entries2, dbug);
missing2 = entries2 (find (missing2));
if (jpchk2 >= numel (entries2))
## Only bump chk if basic classes were all found
if (chk)
++chk;
endif
if (dbug > 1)
printf (" => POI OOXML OK\n");
endif
elseif (dbug > 1)
printf (" => Some classes for POI OOXML support missing\n");
endif
endfunction
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