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## Copyright (C) 2005-2015 Søren Hauberg
## Copyright (C) 2010 VZLU Prague, a.s.
##
## This file is part of Octave.
##
## Octave 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.
##
## Octave 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 Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{desc} =} get_description (@var{filename})
## Undocumented internal function.
## @end deftypefn
## Parse the DESCRIPTION file.
function desc = get_description (filename)
[fid, msg] = fopen (filename, "r");
if (fid == -1)
error ("the DESCRIPTION file %s could not be read: %s", filename, msg);
endif
desc = struct ();
line = fgetl (fid);
while (line != -1)
if (line(1) == "#")
## Comments, do nothing.
elseif (isspace (line(1)))
## Continuation lines
if (exist ("keyword", "var") && isfield (desc, keyword))
desc.(keyword) = [desc.(keyword) " " deblank(line)];
endif
else
## Keyword/value pair
colon = find (line == ":");
if (length (colon) == 0)
disp ("skipping line");
else
colon = colon(1);
keyword = tolower (strtrim (line(1:colon-1)));
value = strtrim (line (colon+1:end));
if (length (value) == 0)
fclose (fid);
error ("The keyword '%s' of the package '%s' has an empty value",
keyword, desc.name);
endif
desc.(keyword) = value;
endif
endif
line = fgetl (fid);
endwhile
fclose (fid);
## Make sure all is okay.
needed_fields = {"name", "version", "date", "title", ...
"author", "maintainer", "description"};
for f = needed_fields
if (! isfield (desc, f{1}))
error ("description is missing needed field %s", f{1});
endif
endfor
desc.version = fix_version (desc.version);
if (isfield (desc, "depends"))
desc.depends = fix_depends (desc.depends);
else
desc.depends = "";
endif
desc.name = tolower (desc.name);
endfunction
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