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parser.hGo to the documentation of this file.00001 /*************************************************************************** 00002 * * 00003 * LBflow - an extensible lattice Boltzmann simulation framework * 00004 * * 00005 * Copyright (C) 2007 by Ed Llewellin * 00006 * * 00007 * This file may not be copied or shared without permission * 00008 * Contact ed@lbflow.co.uk or visit www.lbflow.co.uk * 00009 * * 00010 ***************************************************************************/ 00011 00012 #ifndef PARSER_H 00013 #define PARSER_H 00014 00015 #include <iostream> 00016 00017 using namespace std; 00018 00019 enum charType {integer, alpha}; 00020 00021 class Parser { 00022 private: 00023 //data members 00024 string filename; 00025 istream& infile; 00026 string delims; 00027 int line_num, line_pos; 00028 00029 public: 00031 Parser(string, istream&, string); 00032 //constructor for subparser (takes linenum and linepos as arguments) 00033 Parser(string, istream&, string, int, int); 00034 00036 ~Parser(){}; 00037 00038 //public member functions 00039 00040 void reset(); 00041 00042 string getToken(); 00043 00044 string getSingleToken(); 00045 00046 string peekAtToken(); 00047 00048 bool charIsDelim(char); 00049 00050 string getAlphaToken(); 00051 00052 string getFileToken(); 00053 00054 string getStringBetween(string); 00055 00056 string getStringBetween(string, string); 00057 00058 string getStringBetweenMatched(char, char); 00059 00060 string getStringBefore(string); 00061 00062 //Not used 00063 string getKey(); 00064 00065 bool getBoolToken(); 00066 00067 uint getUIntToken(); 00068 00069 int getIntToken(); 00070 00071 double getFloatToken(); 00072 00073 bool jumpToNext(string ); 00074 00075 void nextTokenMustBe(string); 00076 00077 bool nextTokenIs(string); 00078 00079 bool nextSingleTokenIs(string); 00080 00081 bool nextTokenIs(charType); 00082 00083 void chuck(string); 00084 00085 //isInt and isFloat are not rigorous: they just spot if it definitely isn't 00086 00087 bool isBool(const string&); 00088 00089 bool isUInt(const string&); 00090 00091 bool isInt(const string&); 00092 00093 bool isFloat(const string&); 00094 00095 bool isAlpha(const string&); 00096 00097 bool isFile(const string&); 00098 00099 int getLineNum() {return line_num;}; 00100 00101 int getLinePos() {return line_pos;}; 00102 00103 string getFileName() {return filename;}; 00104 00105 bool atEnd(); 00106 00107 void outputRemaining(ostream&); 00108 00109 }; 00110 00111 #endif |