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#pragma once
#include "base/string_utils.hpp"
#include "std/vector.hpp"
#include "std/map.hpp"
#include "std/string.hpp"
#include "std/iostream.hpp"
#include "std/shared_ptr.hpp"
class Reader;
class CategoriesHolder
{
public:
struct Category
{
static const uint8_t EMPTY_PREFIX_LENGTH = 10;
struct Name
{
string m_name;
/// This language/locale code is completely different from our built-in langs in multilang_utf8_string.cpp
/// and is only used for mapping user's input language to our values in categories.txt file
int8_t m_locale;
uint8_t m_prefixLengthToSuggest;
};
vector<Name> m_synonyms;
inline void Swap(Category & r)
{
m_synonyms.swap(r.m_synonyms);
}
};
private:
typedef strings::UniString StringT;
typedef multimap<uint32_t, shared_ptr<Category> > Type2CategoryContT;
typedef multimap<pair<int8_t, StringT>, uint32_t> Name2CatContT;
typedef Type2CategoryContT::const_iterator IteratorT;
Type2CategoryContT m_type2cat;
Name2CatContT m_name2type;
public:
CategoriesHolder() {}
/// Takes ownership of reader.
explicit CategoriesHolder(Reader * reader);
void LoadFromStream(istream & s);
template <class ToDo>
void ForEachCategory(ToDo toDo) const
{
for (IteratorT i = m_type2cat.begin(); i != m_type2cat.end(); ++i)
toDo(*i->second);
}
template <class ToDo>
void ForEachName(ToDo toDo) const
{
for (IteratorT i = m_type2cat.begin(); i != m_type2cat.end(); ++i)
for (size_t j = 0; j < i->second->m_synonyms.size(); ++j)
toDo(i->second->m_synonyms[j]);
}
template <class ToDo>
void ForEachTypeByName(int8_t locale, StringT const & name, ToDo toDo) const
{
typedef typename Name2CatContT::const_iterator IterT;
pair<IterT, IterT> range = m_name2type.equal_range(make_pair(locale, name));
while (range.first != range.second)
{
toDo(range.first->second);
++range.first;
}
}
/// Search name for type with preffered locale language.
/// If no name for this language, return first (en) name.
/// @return false if no categories for type.
bool GetNameByType(uint32_t type, int8_t locale, string & name) const;
bool IsTypeExist(uint32_t type) const;
inline void Swap(CategoriesHolder & r)
{
m_type2cat.swap(r.m_type2cat);
m_name2type.swap(r.m_name2type);
}
/// Converts any language locale from UI to internal integer code
static int8_t MapLocaleToInteger(string const & locale);
static int8_t const UNSUPPORTED_LOCALE_CODE = -1;
private:
void AddCategory(Category & cat, vector<uint32_t> & types);
static bool ValidKeyToken(StringT const & s);
};
inline void swap(CategoriesHolder & a, CategoriesHolder & b)
{
return a.Swap(b);
}
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