string_set_transform.h

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/*
 * nvbio
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#pragma once

#include <nvbio/strings/string.h>
#include <nvbio/strings/string_set.h>

namespace nvbio {

template <typename StringSet, typename StringTransform>
struct TransformStringSet
{
    typedef StringSet                                                   string_set_type;
    typedef StringTransform                                             transform_type;
    typedef typename transform_type::result_type                        string_type;
    typedef typename string_type::symbol_type                           symbol_type;
    typedef typename StringSet::system_tag                              system_tag;

    typedef StringSetIterator< TransformedStringSet<StringSet,StringTransform> >       iterator;
    typedef StringSetIterator< TransformedStringSet<StringSet,StringTransform> > const_iterator;

    NVBIO_FORCEINLINE NVBIO_HOST_DEVICE
    TransformStringSet() {}

    NVBIO_FORCEINLINE NVBIO_HOST_DEVICE
    TransformStringSet(
        const StringSet         string_set,
        const StringTransform   transform) :
        m_string_set( string_set ),
        m_transform( transform ) {}

    NVBIO_FORCEINLINE NVBIO_HOST_DEVICE
    uint32 size() const { return m_string_set.size(); }

    NVBIO_FORCEINLINE NVBIO_HOST_DEVICE
    string_type operator[] (const uint32 i) const
    {
        return m_transform( m_string_set[i] );
    }

    const_iterator begin() const { return const_iterator(*this,0u); }

    const_iterator end() const { return const_iterator(*this,size()); }

    iterator begin() { return iterator(*this,0u); }

    iterator end() { return iterator(*this,size()); }

private:
    StringSet       m_string_set;
    StringTransform m_transform;
};

template <typename StringSet, typename StringTransform>
TransformStringSet<StringSet,StringTransform> make_transform_string_set(
    const StringSet         string_set,
    const StringTransform   transform)
{
    return TransformStringSet<StringSet,StringTransform>(
        string_set,
        transform );
}

} // namespace nvbio