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#ifndef cond_SmallWORMDict_h
#define cond_SmallWORMDict_h
#include "CondFormats/Serialization/interface/Serializable.h"
#include <vector>
#include <string>
#include <boost/iterator_adaptors.hpp>
#include <boost/iterator/transform_iterator.hpp>
#include <boost/iterator/counting_iterator.hpp>
// Function for testing SmallWORMDict
namespace test {
namespace SmallWORMDict {
int test();
}
} // namespace test
namespace cond {
/** A small WORM Dictionary of small words
optimized to do a single allocation
*/
class SmallWORMDict {
friend int test::SmallWORMDict::test();
public:
SmallWORMDict() = default;
~SmallWORMDict() = default;
struct Frame {
Frame() : b(nullptr) {}
Frame(char const* ib, unsigned int il, unsigned int iind) : b(ib), l(il), ind(iind) {}
char const* b;
unsigned int l;
unsigned int ind;
};
struct IterHelp {
typedef Frame result_type;
IterHelp() : v(nullptr) {}
IterHelp(SmallWORMDict const& iv) : v(&iv) {}
result_type const& operator()(int i) const {
int k = (0 == i) ? 0 : v->m_index[i - 1];
return frame(&v->m_data[k], v->m_index[i] - k, i);
}
Frame const& frame(char const* b, unsigned int l, unsigned int ind) const {
f.b = b;
f.l = l;
f.ind = ind;
return f;
}
private:
SmallWORMDict const* v;
mutable Frame f;
};
friend struct IterHelp;
typedef boost::transform_iterator<IterHelp, boost::counting_iterator<int> > const_iterator;
const_iterator begin() const {
return boost::make_transform_iterator(boost::counting_iterator<int>(0), IterHelp(*this));
}
const_iterator end() const {
return boost::make_transform_iterator(boost::counting_iterator<int>(size()), IterHelp(*this));
}
Frame operator[](int i) const {
int k = (0 == i) ? 0 : m_index[i - 1];
return Frame(&m_data[k], m_index[i] - k, i);
}
const_iterator find(std::string const& s) const;
const_iterator find(char const* s) const;
// constructror from config
explicit SmallWORMDict(std::vector<std::string> const& idict);
// find location of a word
size_t index(std::string const& s) const;
size_t index(char const* s) const;
size_t size() const;
private:
std::vector<char> m_data;
std::vector<unsigned int> m_index;
COND_SERIALIZABLE;
};
} // namespace cond
#endif
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