QStringHandler.hh

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#ifndef _Q_STRING_HANDLER_HH_
#define _Q_STRING_HANDLER_HH_
#include <string>
namespace QStringHandler {
    inline std::string &SwallowSpaces(std::string& s) {
        size_t pos=0;
        while(s[pos]==' ')
            pos++;
        return s.erase( 0, pos);
    }

    inline std::string &RSwallowSpaces(std::string& s) {
        size_t pos = s.length()-1;
        while( s[pos] == ' ' )
            pos--;
        return s.erase( pos+1, std::string::npos );
    }

    // convert a string to integer checking error
    // return TRUE on success, false otherwise
    inline bool StringToInteger(const std::string& s, int &i) {
        for( unsigned int k=0; k<s.size(); k++) {
            if (k==0 && (s[k]=='-' || s[k]=='+')) continue;
            if ( isdigit(s[k]) ) continue;
            return false;
        }
        i = atoi(s.c_str());
        return true;                    
    }

    // return TRUE on success, false otherwise
    inline bool StringToBool(const std::string& s, bool &b) {
        if(s=="true"){b=true;return true;}
        if(s=="false"){b=false;return true;}

        return false;                   
    }

    // convert a string to double
    // return TRUE on success, false otherwise
    inline int StringToDouble(const std::string& s, double &d) {
        const char *str = s.c_str();
        char *err;
        double val = ::strtod(str,&err);
        if ( err == str || s=="Info" || s=="info" ) {
            return false;
        }
        d=val;
        return true;                    
    }

}
#endif

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