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#include "coding/multilang_utf8_string.hpp"
#include "defines.hpp"
namespace
{
// TODO(AlexZ): Review and replace invalid languages which does not map correctly to
// iOS/Android locales/UI by valid and more popular ones.
// Languages below were choosen after sorting name:<lang> tags in 2011.
// Note, that it's not feasible to increase languages number here due to
// our current encoding (6 bit to store language code).
StringUtf8Multilang::Languages const g_languages = {{ {"default", "Native for each country"},
{"en", "English"}, {"ja", "日本語"}, {"fr", "Français"}, {"ko_rm", "Korean (Romanized)"},
{"ar", "العربية"}, {"de", "Deutsch"}, {"int_name", "International (Latin)"}, {"ru", "Русский"},
{"sv", "Svenska"}, {"zh", "中文"}, {"fi", "Suomi"}, {"be", "Беларуская"}, {"ka", "ქართული"},
{"ko", "한국어"}, {"he", "עברית"}, {"nl", "Nederlands"}, {"ga", "Gaeilge"},
{"ja_rm", "Japanese (Romanized)"}, {"el", "Ελληνικά"}, {"it", "Italiano"}, {"es", "Español"},
{"zh_pinyin", "Chinese (Pinyin)"}, {"th", "ไทย"}, {"cy", "Cymraeg"}, {"sr", "Српски"},
{"uk", "Українська"}, {"ca", "Català"}, {"hu", "Magyar"}, {"hsb", "Hornjoserbšćina"}, {"eu", "Euskara"},
{"fa", "فارسی"}, {"br", "Breton"}, {"pl", "Polski"}, {"hy", "Հայերէն"}, {"kn", "ಕನ್ನಡ"},
{"sl", "Slovenščina"}, {"ro", "Română"}, {"sq", "Shqipe"}, {"am", "አማርኛ"}, {"fy", "Frysk"},
{"cs", "Čeština"}, {"gd", "Gàidhlig"}, {"sk", "Slovenčina"}, {"af", "Afrikaans"},
{"ja_kana", "日本語(カタカナ)"}, {"lb", "Luxembourgish"}, {"pt", "Português"}, {"hr", "Hrvatski"},
{"fur", "Friulian"}, {"vi", "Tiếng Việt"}, {"tr", "Türkçe"}, {"bg", "Български"},
{"eo", "Esperanto"}, {"lt", "Lietuvių"}, {"la", "Latin"}, {"kk", "Қазақ"},
{"gsw", "Schwiizertüütsch"}, {"et", "Eesti"}, {"ku", "Kurdish"}, {"mn", "Mongolian"},
{"mk", "Македонски"}, {"lv", "Latviešu"}, {"hi", "हिन्दी"}
}};
} // namespace
int8_t constexpr StringUtf8Multilang::kUnsupportedLanguageCode;
int8_t constexpr StringUtf8Multilang::kDefaultCode;
int8_t constexpr StringUtf8Multilang::kEnglishCode;
int8_t constexpr StringUtf8Multilang::kInternationalCode;
// static
StringUtf8Multilang::Languages const & StringUtf8Multilang::GetSupportedLanguages()
{
// Asserts for generic class constants.
ASSERT_EQUAL(g_languages[kDefaultCode].m_code, string("default"), ());
ASSERT_EQUAL(g_languages[kInternationalCode].m_code, string("int_name"), ());
return g_languages;
}
// static
int8_t StringUtf8Multilang::GetLangIndex(string const & lang)
{
static_assert(g_languages.size() == kMaxSupportedLanguages,
"With current encoding we are limited to 64 languages max.");
for (size_t i = 0; i < g_languages.size(); ++i)
if (lang == g_languages[i].m_code)
return static_cast<int8_t>(i);
return kUnsupportedLanguageCode;
}
// static
char const * StringUtf8Multilang::GetLangByCode(int8_t langCode)
{
if (langCode < 0 || langCode > g_languages.size() - 1)
return "";
return g_languages[langCode].m_code;
}
// static
char const * StringUtf8Multilang::GetLangNameByCode(int8_t langCode)
{
if (langCode < 0 || langCode > g_languages.size() - 1)
return "";
return g_languages[langCode].m_name;
}
size_t StringUtf8Multilang::GetNextIndex(size_t i) const
{
++i;
size_t const sz = m_s.size();
while (i < sz && (m_s[i] & 0xC0) != 0x80)
{
if ((m_s[i] & 0x80) == 0)
i += 1;
else if ((m_s[i] & 0xFE) == 0xFE)
i += 7;
else if ((m_s[i] & 0xFC) == 0xFC)
i += 6;
else if ((m_s[i] & 0xF8) == 0xF8)
i += 5;
else if ((m_s[i] & 0xF0) == 0xF0)
i += 4;
else if ((m_s[i] & 0xE0) == 0xE0)
i += 3;
else if ((m_s[i] & 0xC0) == 0xC0)
i += 2;
}
return i;
}
void StringUtf8Multilang::AddString(int8_t lang, string const & utf8s)
{
size_t i = 0;
size_t const sz = m_s.size();
while (i < sz)
{
size_t const next = GetNextIndex(i);
if ((m_s[i] & 0x3F) == lang)
{
++i;
m_s.replace(i, next - i, utf8s);
return;
}
i = next;
}
m_s.push_back(lang | 0x80);
m_s.insert(m_s.end(), utf8s.begin(), utf8s.end());
}
bool StringUtf8Multilang::GetString(int8_t lang, string & utf8s) const
{
size_t i = 0;
size_t const sz = m_s.size();
while (i < sz)
{
size_t const next = GetNextIndex(i);
if ((m_s[i] & 0x3F) == lang)
{
++i;
utf8s.assign(m_s.c_str() + i, next - i);
return true;
}
i = next;
}
return false;
}
bool StringUtf8Multilang::HasString(int8_t lang) const
{
for(size_t i = 0; i < m_s.size(); i = GetNextIndex(i))
{
if ((m_s[i] & 0x3F) == lang)
return true;
}
return false;
}
namespace
{
struct Printer
{
string & m_out;
Printer(string & out) : m_out(out) {}
bool operator()(int8_t code, string const & name) const
{
m_out += string(StringUtf8Multilang::GetLangByCode(code)) + string(":") + name + " ";
return true;
}
};
struct Finder
{
string const & m_s;
int8_t m_res;
Finder(string const & s) : m_s(s), m_res(-1) {}
bool operator()(int8_t code, string const & name)
{
if (name == m_s)
{
m_res = code;
return false;
}
return true;
}
};
} // namespace
int8_t StringUtf8Multilang::FindString(string const & utf8s) const
{
Finder finder(utf8s);
ForEach(finder);
return finder.m_res;
}
string DebugPrint(StringUtf8Multilang const & s)
{
string out;
s.ForEach(Printer(out));
return out;
}
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