local help_files = {'graphics', 'matrix', 'iter'}
local function open_module(modname)
	local fullname = string.format('help/%s.lua', modname)
	local m = dofile(fullname)
	return m
end
local function search_help(func)
	for k, modname in ipairs(help_files) do
		local module = open_module(modname)
		if module[func] then
			local help_text = module[func]
			return help_text
		end
	end
end
-- declare a global function
function help(func)
	local txt = search_help(func) or "No help found for the given function"
	echo(txt)
end
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://cgit.git.savannah.gnu.org/cgit/gsl-shell.git/plain/help.lua?id=10181f3b0098551f530e69cfc7d89221dac9332c">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://cgit.git.savannah.gnu.org/cgit/gsl-shell.git/plain/help.lua?id=10181f3b0098551f530e69cfc7d89221dac9332c" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>