Method 3.2: Implement a Range Adaptor with arguments

Provide a range for your return type, for example:

#include <boost/range/adaptor/argument_fwd.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/iterator/transform_iterator.hpp>

template<typename Value>
class replace_value
{
public:
    typedef const Value& result_type;
    typedef const Value& argument_type;

    replace_value(const Value& from, const Value& to)
        : m_from(from), m_to(to)
    {
    }

    const Value& operator()(const Value& x) const
    {
        return (x == m_from) ? m_to : x;
    }
private:
    Value m_from;
    Value m_to;
};

template<typename Range>
class replace_range
: public boost::iterator_range<
    boost::transform_iterator<
        replace_value<typename boost::range_value<Range>::type>,
        typename boost::range_iterator<Range>::type> >
{
private:
    typedef typename boost::range_value<Range>::type value_type;
    typedef typename boost::range_iterator<Range>::type iterator_base;
    typedef replace_value<value_type> Fn;
    typedef boost::transform_iterator<Fn, iterator_base> replaced_iterator;
    typedef boost::iterator_range<replaced_iterator> base_t;

public:
    replace_range(Range& rng, value_type from, value_type to)
        : base_t(replaced_iterator(boost::begin(rng), Fn(from,to)),
                 replaced_iterator(boost::end(rng), Fn(from,to)))
     {
     }
 };

Implement a holder class to hold the arguments required to construct the RangeAdaptor.

The holder combines multiple parameters into one that can be passed as the right operand of operator|().

template<typename T>
class replace_holder : public boost::range_detail::holder2<T>
{
public:
    replace_holder(const T& from, const T& to)
        : boost::range_detail::holder2<T>(from, to)
    { }
private:
    void operator=(const replace_holder&);
};

Define an instance of the holder with the name of the adaptor

static boost::range_detail::forwarder2<replace_holder>
replaced = boost::range_detail::forwarder2<replace_holder>();

Define operator|

template<typename SinglePassRange>
inline replace_range<SinglePassRange>
operator|(SinglePassRange& rng,
          const replace_holder<typename boost::range_value<SinglePassRange>::type>& f)
{
    return replace_range<SinglePassRange>(rng, f.val1, f.val2);
}

template<typename SinglePassRange>
inline replace_range<const SinglePassRange>
operator|(const SinglePassRange& rng,
          const replace_holder<typename boost::range_value<SinglePassRange>::type>& f)
{
    return replace_range<const SinglePassRange>(rng, f.val1, f.val2);
}