Refactor PotentialFileReader

src/text_file_reader.h

@@ -0,0 +1,68 @@
+/* -*- c++ -*- ----------------------------------------------------------
+   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
+   http://lammps.sandia.gov, Sandia National Laboratories
+   Steve Plimpton, sjplimp@sandia.gov
+
+   Copyright (2003) Sandia Corporation.  Under the terms of Contract
+   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
+   certain rights in this software.  This software is distributed under
+   the GNU General Public License.
+
+   See the README file in the top-level LAMMPS directory.
+------------------------------------------------------------------------- */
+
+/* ----------------------------------------------------------------------
+   Contributing authors: Richard Berger (Temple U)
+------------------------------------------------------------------------- */
+
+#ifndef LMP_TEXT_FILE_READER_H
+#define LMP_TEXT_FILE_READER_H
+
+#include <cstdio>
+#include <string>
+#include <exception>
+
+namespace LAMMPS_NS
+{
+  class TextFileReader {
+    std::string filename;
+    std::string filetype;
+    static const int MAXLINE = 1024;
+    char line[MAXLINE];
+    FILE *fp;
+
+  public:
+    bool ignore_comments;
+    
+    TextFileReader(const std::string &filename, const std::string &filetype);
+    ~TextFileReader();
+
+    void skip_line();
+    char * next_line(int nparams = 0);
+
+    void next_dvector(int n, double * list);
+  };
+
+  class FileReaderException : public std::exception {
+    std::string message;
+  public:
+    FileReaderException(const std::string & msg) : message(msg) {
+    }
+  
+    ~FileReaderException() throw() {
+    }
+  
+    virtual const char * what() const throw() {
+      return message.c_str();
+    }
+  };
+
+  class EOFException : public FileReaderException {
+  public:
+    EOFException(const std::string & msg) : FileReaderException(msg) {
+    }
+  };
+
+} // namespace LAMMPS_NS
+
+#endif