range()

template<class T >

tfxx::Range<T> tfxx::string::range

(

const std::string &

s

)

read range from string

The string may contain a single number or a range in a format like "5-19". Open ranges (like "3-" or "-18") as well as negative values are not supported.

Definition at line 61 of file rangestring.h.

References gen_split().

      {
        typedef tfxx::Range<T> Trange;
        typename Trange::Tvalue v1, v2;
        std::list<std::string> slist;
        tfxx::string::gen_split(slist, s, "-", true);
        std::list<std::string>::const_iterator i=slist.begin();
        std::istringstream iss(*i);
        iss >> v1;
        if (slist.size()>1)
        { 
          ++i; 
          iss.str(*i); 
          // clear status after reading first number
          iss.clear();
          iss >> v2; 
        }
        else
        { v2=v1; }
        Trange retval(v1,v2);
        return retval;
      } // tfxx::Range<T> range(const std::string& s)

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