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## Copyright (C) 2008 Bill Denney
##
## This software 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 software 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 software; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{funlist}, @var{funloc}, @var{catlist}, @var{catloc}, @var{catlvl}] =} __matlabfunctionlist__ (@var{url})
## Return a list of matlab functions, @var{funlist}, from the @var{url}.
## It will also return the list of locations of the functions within the
## file, the categories in the url (@var{catlist}), the location of the
## categories within the url (@var{catloc}), and the level of the
## categories (@var{catlvl}, 2 = h2, 3 = h3, ...). Note, the locations
## may not be sorted or unique.
## @end deftypefn
function [funlist, funloc, catlist, catloc, catlvl] = __matlabfunctionlist__ (url = "http://www.mathworks.com/access/helpdesk/help/techdoc/ref/f16-6011.html")
[raw, success, message] = urlread(url);
if (! success)
warning ("__matlabfunctionlist__:url",
"__matlabfunctionlist__: Could not read\n%s\n%s", url, message);
funlist = {};
funloc = [];
catlist = {};
catloc = [];
catlvl = [];
return
endif
## Building up a really rough single-purpose XML parser
## Tags
tagopen = find (raw == "<");
tagclose = find (raw == ">");
## categories
h2loc = findstr (raw, "<h2");
## sub-categories
h3loc = findstr (raw, "<h3");
## sub-sub categories (optional)
h4loc = findstr (raw, "<h4");
## Find the names of each section
h2name = getname (raw, h2loc, tagopen, tagclose);
h3name = getname (raw, h3loc, tagopen, tagclose);
h4name = getname (raw, h4loc, tagopen, tagclose);
catlist = [h2name(:);h3name(:);h4name(:)];
catloc = [h2loc(:);h3loc(:);h4loc(:)];
catlvl = [2*ones(numel(h2name),1);
3*ones(numel(h3name),1);
4*ones(numel(h4name),1)];
tmpfunloc = findstr (raw, "<tr valign=\"top\"><td width=\"150\"><a");
## this is not quite right, but it is the minimum size required.
funlist = cell (numel (tmpfunloc), 1);
funloc = zeros (numel (tmpfunloc), 1);
idx = 0;
for i = 1:numel (tmpfunloc)
tmpfunname = raw(tagclose(find (tagclose > tmpfunloc(i), 3)(3))+1:
tagopen(find (tagopen > tmpfunloc(i), 3)(3))-1);
## convert all whitespace to actual spaces
tmpfunname(isspace (tmpfunname)) = " ";
if (numel (tmpfunname) > 2)
tmpfunname = split (tmpfunname, ", ");
endif
for j = 1:rows (tmpfunname)
idx++;
funlist{idx} = strtrim (tmpfunname(j,:));
funloc(idx) = tmpfunloc(i);
endfor
endfor
endfunction
function name = getname (raw, loc, tagopen, tagclose)
name = cell (size (loc));
for i = 1:numel (loc)
name{i} = raw(tagclose(find (tagclose > loc(i), 1))+1:tagopen(find (tagopen > loc(i), 1))-1);
endfor
endfunction
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