parseUtils.hpp

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#ifndef _WOLFRAME_PARSE_UTILS_HPP_INCLUDED
#define _WOLFRAME_PARSE_UTILS_HPP_INCLUDED
#include "utils/sourceLineInfo.hpp"
#include <string>
#include <vector>
#include <map>

namespace _Wolframe {
namespace utils {

class CharTable
{
public:
        CharTable( const char* op="", bool isInverse=false);
        bool operator[]( char ch) const         {return m_ar[ (unsigned char)ch];}
private:
        bool m_ar[256];
};

const CharTable& identifierCharTable();
const CharTable& emptyCharTable();
const CharTable& anyCharTable();

class IdentifierTable
{
public:
        IdentifierTable( bool casesensitive_, const char** arg);

        int operator[]( const std::string&) const;
        std::string tostring() const;
        const char* idstring( int id) const;

private:
        bool m_casesensitive;                   //< true, if the keywords inserted are case sensitive
        std::map<std::string,int> m_tab;        //< table implementation
        const char** m_arg;                     //< original set of keywors for inverse lookups
};


char parseNextToken( std::string& tok, std::string::const_iterator& itr, std::string::const_iterator end, const CharTable& operatorTable, const CharTable& alphaTable);

char parseNextToken( std::string& tok, std::string::const_iterator& itr, std::string::const_iterator end, const CharTable& operatorTable);

char parseNextToken( std::string& tok, std::string::const_iterator& itr, std::string::const_iterator end);

char gotoNextToken( std::string::const_iterator& itr, std::string::const_iterator end);

std::string parseLine( std::string::const_iterator& si, const std::string::const_iterator& se);

int parseNextIdentifier( std::string::const_iterator& si, const std::string::const_iterator& se, const IdentifierTable& idtab);

std::pair<std::string,std::string> parseTokenAssignement( std::string::const_iterator& itr, std::string::const_iterator end, const CharTable& alphaTable);

std::pair<std::string,std::string> parseTokenAssignement( std::string::const_iterator& itr, std::string::const_iterator end);

std::string parseNextLine( std::string::const_iterator& itr, std::string::const_iterator end);

}} //namespace _Wolframe::utils

#endif // _MISC_UTILS_HPP_INCLUDED