00001 /* @HEADER@ */ 00002 // ************************************************************************ 00003 // 00004 // Sundance 00005 // Copyright (2005) Sandia Corporation 00006 // 00007 // Copyright (year first published) Sandia Corporation. Under the terms 00008 // of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 00009 // retains certain rights in this software. 00010 // 00011 // This library is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Lesser General Public License as 00013 // published by the Free Software Foundation; either version 2.1 of the 00014 // License, or (at your option) any later version. 00015 // 00016 // This library is distributed in the hope that it will be useful, but 00017 // WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 // Lesser General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Lesser General Public 00022 // License along with this library; if not, write to the Free Software 00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00024 // USA 00025 // Questions? Contact Kevin Long (krlong@sandia.gov), 00026 // Sandia National Laboratories, Livermore, California, USA 00027 // 00028 // ************************************************************************ 00029 /* @HEADER@ */ 00030 00031 #ifndef SUNDANCE_MESHREADERBASE_H 00032 #define SUNDANCE_MESHREADERBASE_H 00033 00034 00035 #include "SundanceDefs.hpp" 00036 #include "SundanceMeshSourceBase.hpp" 00037 #include "Teuchos_StrUtils.hpp" 00038 00039 namespace Sundance 00040 { 00041 00042 /** 00043 * MeshReaderBase is a base class for mesh sources that get a mesh 00044 * from a file. It provides several utilities for parsing lines 00045 * from mesh files. 00046 */ 00047 class MeshReaderBase : public MeshSourceBase 00048 { 00049 public: 00050 /** Construct with a filename */ 00051 MeshReaderBase(const std::string& filename, 00052 const MeshType& meshType, 00053 int verbosity, 00054 const MPIComm& comm) 00055 : MeshSourceBase(meshType, verbosity, comm), filename_(filename) 00056 {} 00057 00058 /** Construct from a parameter list */ 00059 MeshReaderBase(const ParameterList& params); 00060 00061 /** */ 00062 virtual ~MeshReaderBase(){;} 00063 00064 protected: 00065 /** access to the filename */ 00066 const std::string& filename() const {return filename_;} 00067 00068 /** convert a std::string to its integer value */ 00069 int atoi(const std::string& x) const ; 00070 00071 /** convert a std::string to its double value */ 00072 double atof(const std::string& x) const ; 00073 00074 /** Determine whether a line is empty */ 00075 bool isEmptyLine(const std::string& x) const ; 00076 00077 /** Open a file "fname" and check for success. 00078 * @param fname name of the file to be opened 00079 * @param description a description of the file, e.g., "node file", 00080 * to be included in any error messages generated. 00081 **/ 00082 RCP<std::ifstream> openFile(const std::string& fname, 00083 const std::string& description) const ; 00084 00085 /** 00086 * Read the next non-empty, non-comment line from a stream 00087 * @param is the stream from which to get the line 00088 * @param line upon return, filled in with the line that was read 00089 * @param tokens array of space-separated tokens in the line 00090 * @param comment a character indicating that everything after it 00091 * is a comment 00092 */ 00093 bool getNextLine(std::istream& is, std::string& line, 00094 Array<string>& tokens, 00095 char comment) const ; 00096 private: 00097 std::string filename_; 00098 mutable int nVertexVars_; 00099 mutable Array<double> vertexVars_; 00100 }; 00101 } 00102 00103 00104 00105 #endif