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<h1>Packed.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// This file may be redistributed and modified only under the terms of</span>
<a name="l00002"></a>00002 <span class="comment">// the GNU Lesser General Public License (See COPYING for details).</span>
<a name="l00003"></a>00003 <span class="comment">// Copyright (C) 2000-2001 Stefanus Du Toit, Michael Day</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef ATLAS_CODECS_PACKED_H</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span><span class="preprocessor">#define ATLAS_CODECS_PACKED_H</span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <<a class="code" href="_utility_8h.html" title="Various utility functions for codec implementation.">Atlas/Codecs/Utility.h</a>></span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <Atlas/Codec.h></span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="preprocessor">#include <iosfwd></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <stack></span>
<a name="l00013"></a>00013
<a name="l00014"></a>00014 <span class="keyword">namespace </span>Atlas { <span class="keyword">namespace </span>Codecs {
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="comment">/*</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment">The form for each element of this codec is as follows:</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment">[type][name=][data][|endtype]</span>
<a name="l00021"></a>00021 <span class="comment"> </span>
<a name="l00022"></a>00022 <span class="comment">( ) for lists</span>
<a name="l00023"></a>00023 <span class="comment">[ ] for maps</span>
<a name="l00024"></a>00024 <span class="comment">$ for string</span>
<a name="l00025"></a>00025 <span class="comment">@ for int</span>
<a name="l00026"></a>00026 <span class="comment"># for float</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">Sample output for this codec: (whitespace added for clarity)</span>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment">[@id=17$name=Fred +28the +2b great+29#weight=1.5(args=@1@2@3)]</span>
<a name="l00031"></a>00031 <span class="comment"></span>
<a name="l00032"></a>00032 <span class="comment">The complete specification is located in cvs at:</span>
<a name="l00033"></a>00033 <span class="comment"> forge/protocols/atlas/spec/packed_syntax.html</span>
<a name="l00034"></a>00034 <span class="comment"> </span>
<a name="l00035"></a>00035 <span class="comment">*/</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">class </span>Packed : <span class="keyword">public</span> Codec
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="keyword">public</span>:
<a name="l00040"></a>00040
<a name="l00041"></a>00041 Packed(std::iostream& s, <a class="code" href="class_atlas_1_1_bridge.html" title="Atlas stream bridge.">Atlas::Bridge</a> & b);
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">virtual</span> <span class="keywordtype">void</span> poll(<span class="keywordtype">bool</span> can_read = <span class="keyword">true</span>);
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">virtual</span> <span class="keywordtype">void</span> streamBegin();
<a name="l00046"></a>00046 <span class="keyword">virtual</span> <span class="keywordtype">void</span> streamMessage();
<a name="l00047"></a>00047 <span class="keyword">virtual</span> <span class="keywordtype">void</span> streamEnd();
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapMapItem(<span class="keyword">const</span> std::string& name);
<a name="l00050"></a>00050 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapListItem(<span class="keyword">const</span> std::string& name);
<a name="l00051"></a>00051 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapIntItem(<span class="keyword">const</span> std::string& name, <span class="keywordtype">long</span>);
<a name="l00052"></a>00052 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapFloatItem(<span class="keyword">const</span> std::string& name, <span class="keywordtype">double</span>);
<a name="l00053"></a>00053 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapStringItem(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> std::string&);
<a name="l00054"></a>00054 <span class="keyword">virtual</span> <span class="keywordtype">void</span> mapEnd();
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listMapItem();
<a name="l00057"></a>00057 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listListItem();
<a name="l00058"></a>00058 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listIntItem(<span class="keywordtype">long</span>);
<a name="l00059"></a>00059 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listFloatItem(<span class="keywordtype">double</span>);
<a name="l00060"></a>00060 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listStringItem(<span class="keyword">const</span> std::string&);
<a name="l00061"></a>00061 <span class="keyword">virtual</span> <span class="keywordtype">void</span> listEnd();
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keyword">protected</span>:
<a name="l00064"></a>00064
<a name="l00065"></a>00065 std::iostream& m_socket;
<a name="l00066"></a>00066 Bridge & m_bridge;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keyword">enum</span> State
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 PARSE_STREAM,
<a name="l00071"></a>00071 PARSE_MAP,
<a name="l00072"></a>00072 PARSE_LIST,
<a name="l00073"></a>00073 PARSE_MAP_BEGIN,
<a name="l00074"></a>00074 PARSE_LIST_BEGIN,
<a name="l00075"></a>00075 PARSE_INT,
<a name="l00076"></a>00076 PARSE_FLOAT,
<a name="l00077"></a>00077 PARSE_STRING,
<a name="l00078"></a>00078 PARSE_NAME
<a name="l00079"></a>00079 };
<a name="l00080"></a>00080
<a name="l00081"></a>00081 std::stack<State> m_state;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 std::string m_name;
<a name="l00084"></a>00084 std::string m_data;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseStream(<span class="keywordtype">char</span>);
<a name="l00087"></a>00087 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseMap(<span class="keywordtype">char</span>);
<a name="l00088"></a>00088 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseList(<span class="keywordtype">char</span>);
<a name="l00089"></a>00089 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseMapBegin(<span class="keywordtype">char</span>);
<a name="l00090"></a>00090 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseListBegin(<span class="keywordtype">char</span>);
<a name="l00091"></a>00091 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseInt(<span class="keywordtype">char</span>);
<a name="l00092"></a>00092 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseFloat(<span class="keywordtype">char</span>);
<a name="l00093"></a>00093 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseString(<span class="keywordtype">char</span>);
<a name="l00094"></a>00094 <span class="keyword">inline</span> <span class="keywordtype">void</span> parseName(<span class="keywordtype">char</span>);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keyword">inline</span> <span class="keyword">const</span> std::string hexEncode(<span class="keyword">const</span> std::string& data)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="keywordflow">return</span> hexEncodeWithPrefix(<span class="stringliteral">"+"</span>, <span class="stringliteral">"+[]()@#$="</span>, data);
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keyword">inline</span> <span class="keyword">const</span> std::string hexDecode(<span class="keyword">const</span> std::string& data)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="keywordflow">return</span> hexDecodeWithPrefix(<span class="stringliteral">"+"</span>, data);
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105 };
<a name="l00106"></a>00106
<a name="l00107"></a>00107 } } <span class="comment">// namespace Atlas::Codecs</span>
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="preprocessor">#endif</span>
</pre></div></div>
<HR>
<P>Copyright 2000-2004 the respective authors.</P>
<P>This document can be licensed under the terms of the GNU Free Documentation
License or the GNU General Public License and may be freely distributed under
the terms given by one of these licenses.</P>
