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## Copyright (C) 2008 Bill Denney
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## This software is free software; you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or (at
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## your option) any later version.
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## This software is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## General Public License for more details.
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## You should have received a copy of the GNU General Public License
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## along with this software; see the file COPYING. If not, see
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## <http://www.gnu.org/licenses/>.
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## @deftypefn {Function File} {[@var{funlist}, @var{funloc}, @var{catlist}, @var{catloc}, @var{catlvl}] =} __matlabfunctionlist__ (@var{url})
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## Return a list of matlab functions, @var{funlist}, from the @var{url}.
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## It will also return the list of locations of the functions within the
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## file, the categories in the url (@var{catlist}), the location of the
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## categories within the url (@var{catloc}), and the level of the
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## categories (@var{catlvl}, 2 = h2, 3 = h3, ...). Note, the locations
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## may not be sorted or unique.
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function [funlist, funloc, catlist, catloc, catlvl] = __matlabfunctionlist__ (url = "http://www.mathworks.com/access/helpdesk/help/techdoc/ref/f16-6011.html")
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[raw, success, message] = urlread(url);
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warning ("__matlabfunctionlist__:url",
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"__matlabfunctionlist__: Could not read\n%s\n%s", url, message);
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## Building up a really rough single-purpose XML parser
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tagopen = find (raw == "<");
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tagclose = find (raw == ">");
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h2loc = findstr (raw, "<h2");
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h3loc = findstr (raw, "<h3");
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## sub-sub categories (optional)
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h4loc = findstr (raw, "<h4");
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## Find the names of each section
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h2name = getname (raw, h2loc, tagopen, tagclose);
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h3name = getname (raw, h3loc, tagopen, tagclose);
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h4name = getname (raw, h4loc, tagopen, tagclose);
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catlist = [h2name(:);h3name(:);h4name(:)];
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catloc = [h2loc(:);h3loc(:);h4loc(:)];
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catlvl = [2*ones(numel(h2name),1);
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3*ones(numel(h3name),1);
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4*ones(numel(h4name),1)];
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tmpfunloc = findstr (raw, "<tr valign=\"top\"><td width=\"150\"><a");
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## this is not quite right, but it is the minimum size required.
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funlist = cell (numel (tmpfunloc), 1);
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funloc = zeros (numel (tmpfunloc), 1);
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for i = 1:numel (tmpfunloc)
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tmpfunname = raw(tagclose(find (tagclose > tmpfunloc(i), 3)(3))+1:
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tagopen(find (tagopen > tmpfunloc(i), 3)(3))-1);
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## convert all whitespace to actual spaces
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tmpfunname(isspace (tmpfunname)) = " ";
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if (numel (tmpfunname) > 2)
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tmpfunname = split (tmpfunname, ", ");
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for j = 1:rows (tmpfunname)
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funlist{idx} = strtrim (tmpfunname(j,:));
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funloc(idx) = tmpfunloc(i);
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function name = getname (raw, loc, tagopen, tagclose)
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name = cell (size (loc));
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name{i} = raw(tagclose(find (tagclose > loc(i), 1))+1:tagopen(find (tagopen > loc(i), 1))-1);