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107 lines
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<title>EO: make_help.cpp Source File</title>
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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000011.html">utils</a></div>
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<h1>make_help.cpp</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-</span>
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00002
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00003 <span class="comment">//-----------------------------------------------------------------------------</span>
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00004 <span class="comment">// make_help.h</span>
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00005 <span class="comment">// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2001</span>
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00006 <span class="comment">/* </span>
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00007 <span class="comment"> This library is free software; you can redistribute it and/or</span>
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00008 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
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00009 <span class="comment"> License as published by the Free Software Foundation; either</span>
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00010 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
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00011 <span class="comment"></span>
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00012 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
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00013 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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00014 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
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00015 <span class="comment"> Lesser General Public License for more details.</span>
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00016 <span class="comment"></span>
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00017 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
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00018 <span class="comment"> License along with this library; if not, write to the Free Software</span>
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00019 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
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00020 <span class="comment"></span>
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00021 <span class="comment"> Contact: todos@geneura.ugr.es, http://geneura.ugr.es</span>
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00022 <span class="comment"> Marc.Schoenauer@polytechnique.fr</span>
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00023 <span class="comment"> mkeijzer@dhi.dk</span>
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00024 <span class="comment"> */</span>
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00025 <span class="comment">//-----------------------------------------------------------------------------</span>
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00026 <span class="preprocessor">#ifdef _MSC_VER</span>
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00027 <span class="preprocessor"></span><span class="comment">// to avoid long name warnings</span>
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00028 <span class="preprocessor">#pragma warning(disable:4786)</span>
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00029 <span class="preprocessor"></span><span class="preprocessor">#endif </span>
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00030 <span class="preprocessor"></span>
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00031 <span class="preprocessor">#include <utils/eoParser.h></span>
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00032 <span class="preprocessor">#include <fstream></span>
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00033 <span class="preprocessor">#include <stdexcept></span>
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00034
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00035 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
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00036
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00047 <span class="keywordtype">void</span> make_help(eoParser & _parser)
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00048 {
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00049 <span class="comment">// name of the "status" file where all actual parameter values will be saved</span>
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00050 string str_status = _parser.ProgramName() + <span class="stringliteral">".status"</span>; <span class="comment">// default value</span>
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00051 <a class="code" href="classeo_value_param.html">eoValueParam<string></a>& statusParam = _parser.createParam(str_status, <span class="stringliteral">"status"</span>,<span class="stringliteral">"Status file"</span>,<span class="charliteral">'\0'</span>, <span class="stringliteral">"Persistence"</span> );
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00052
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00053 <span class="comment">// dump status file BEFORE help, so the user gets a chance to use it:</span>
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00054 <span class="comment">// it's probably the case where she/he needs it most!!!</span>
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00055 <span class="comment">// Only help parameter will not be in status file - but who cares???</span>
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00056 <span class="keywordflow">if</span> (statusParam.<a class="code" href="classeo_value_param.html#a2">value</a>() != <span class="stringliteral">""</span>)
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00057 {
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00058 ofstream os(statusParam.<a class="code" href="classeo_value_param.html#a2">value</a>().c_str());
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00059 os << _parser; <span class="comment">// and you can use that file as parameter file</span>
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00060 }
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00061 <span class="comment">// do the following AFTER ALL PARAMETERS HAVE BEEN PROCESSED</span>
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00062 <span class="comment">// i.e. in case you need parameters somewhere else, postpone these</span>
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00063 <span class="keywordflow">if</span> (_parser.userNeedsHelp())
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00064 {
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00065 _parser.printHelp(cout);
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00066 cout << <span class="stringliteral">"You can use an edited copy of file "</span> << statusParam.<a class="code" href="classeo_value_param.html#a2">value</a>()
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00067 << <span class="stringliteral">" as parameter file"</span> << endl;
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00068 exit(1);
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00069 }
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00070 }
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00071
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00079 <span class="keywordtype">bool</span> testDirRes(std::string _dirName, <span class="keywordtype">bool</span> _erase=<span class="keyword">true</span>)
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00080 {
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00081 string s = <span class="stringliteral">"test -d "</span> + _dirName;
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00082 <span class="keywordtype">int</span> res = system(s.c_str());
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00083 <span class="comment">// test for (unlikely) errors</span>
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00084 <span class="keywordflow">if</span> ( (res==-1) || (res==127) )
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00085 {
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00086 s = <span class="stringliteral">"Problem executing test of dir "</span> + _dirName;
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00087 <span class="keywordflow">throw</span> runtime_error(s);
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00088 }
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00089 <span class="comment">// now make sure there is a dir without any file in it - or quit</span>
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00090 <span class="keywordflow">if</span> (res) <span class="comment">// no dir present</span>
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00091 {
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00092 s = string(<span class="stringliteral">"mkdir "</span>)+ _dirName;
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00093 system(s.c_str());
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00094 <span class="keywordflow">return</span> <span class="keyword">true</span>;
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00095 }
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00096 <span class="comment">// else</span>
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00097 <span class="keywordflow">if</span> (_erase) <span class="comment">// OK to erase</span>
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00098 {
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00099 s = string(<span class="stringliteral">"/bin/rm "</span>)+ _dirName + <span class="stringliteral">"/*"</span>;
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00100 system(s.c_str());
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00101 <span class="keywordflow">return</span> <span class="keyword">true</span>;
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00102 }
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00103 <span class="comment">//else</span>
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00104 <span class="comment">// WARNING: bug if dir exists and is empty; this says it is not!</span>
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00105 <span class="comment">// shoudl use scandir instead - no time now :-((( MS Aug. 01</span>
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00106 s = <span class="stringliteral">"Dir "</span> + _dirName + <span class="stringliteral">" is not empty"</span>;
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00107 <span class="keywordflow">throw</span> runtime_error(s);
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00108 <span class="keywordflow">return</span> <span class="keyword">true</span>;
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00109 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:40 2006 for EO by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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