mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-11-05 13:20:11 +00:00
MarcZX10
c3fa50327c
PosixHostLocales takes an injectable environment reader and returns the locales in order of preference: LC_ALL, then LC_MESSAGES, then LANG, the first one that is set and not empty, as the C library chooses the locale of the messages category. When that locale is a real one (not C, POSIX or unset) the entries of LANGUAGE, the GNU preference list, come before it, as gettext ignores LANGUAGE under the C locale.
313 lines
10 KiB
C++
313 lines
10 KiB
C++
#ifndef CORE_LIBS_PRX_LIBSCESYSTEMSERVICE_LANGUAGELOCALE_HPP
|
|
#define CORE_LIBS_PRX_LIBSCESYSTEMSERVICE_LANGUAGELOCALE_HPP
|
|
|
|
#include <cstddef>
|
|
#include <cstdlib>
|
|
#include <functional>
|
|
#include <span>
|
|
#include <string>
|
|
#include <string_view>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
namespace SystemServiceLocale {
|
|
|
|
struct Tag {
|
|
std::string language;
|
|
std::string script;
|
|
std::string region;
|
|
};
|
|
|
|
enum ConsoleLanguage : int {
|
|
Japanese = 0,
|
|
EnglishUs = 1,
|
|
French = 2,
|
|
Spanish = 3,
|
|
German = 4,
|
|
Italian = 5,
|
|
Dutch = 6,
|
|
PortuguesePortugal = 7,
|
|
Russian = 8,
|
|
Korean = 9,
|
|
ChineseTraditional = 10,
|
|
ChineseSimplified = 11,
|
|
Finnish = 12,
|
|
Swedish = 13,
|
|
Danish = 14,
|
|
Norwegian = 15,
|
|
Polish = 16,
|
|
PortugueseBrazil = 17,
|
|
EnglishUk = 18,
|
|
Turkish = 19,
|
|
SpanishLatinAmerica = 20,
|
|
Arabic = 21,
|
|
FrenchCanada = 22,
|
|
Czech = 23,
|
|
Hungarian = 24,
|
|
Greek = 25,
|
|
Romanian = 26,
|
|
Thai = 27,
|
|
Vietnamese = 28,
|
|
Indonesian = 29,
|
|
Ukrainian = 30,
|
|
};
|
|
|
|
constexpr int NoConsoleLanguage = -1;
|
|
|
|
struct Row {
|
|
std::string_view language;
|
|
std::string_view script;
|
|
std::string_view region;
|
|
int id;
|
|
};
|
|
|
|
namespace Detail {
|
|
|
|
constexpr bool IsAlpha(char c) { return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); }
|
|
constexpr bool IsDigit(char c) { return c >= '0' && c <= '9'; }
|
|
constexpr char Lower(char c) { return c >= 'A' && c <= 'Z' ? static_cast<char>(c - 'A' + 'a') : c; }
|
|
constexpr char Upper(char c) { return c >= 'a' && c <= 'z' ? static_cast<char>(c - 'a' + 'A') : c; }
|
|
|
|
constexpr bool AllOf(std::string_view text, bool (*predicate)(char)) {
|
|
for (char c : text) {
|
|
if (!predicate(c)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
constexpr bool IsAlphanumeric(char c) { return IsAlpha(c) || IsDigit(c); }
|
|
|
|
constexpr bool EqualsIgnoringCase(std::string_view left, std::string_view right) {
|
|
if (left.size() != right.size()) return false;
|
|
for (std::size_t i = 0; i < left.size(); ++i) {
|
|
if (Lower(left[i]) != Lower(right[i])) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
inline constexpr Row LatinEuropeanRows[] = {
|
|
{"en", "", "", EnglishUs},
|
|
{"en", "", "GB", EnglishUk},
|
|
{"en", "", "IE", EnglishUk},
|
|
{"en", "", "AU", EnglishUk},
|
|
{"en", "", "NZ", EnglishUk},
|
|
{"fr", "", "", French},
|
|
{"fr", "", "CA", FrenchCanada},
|
|
{"de", "", "", German},
|
|
{"it", "", "", Italian},
|
|
{"nl", "", "", Dutch},
|
|
{"ro", "", "", Romanian},
|
|
{"mo", "", "", Romanian},
|
|
};
|
|
|
|
inline constexpr Row IberianRows[] = {
|
|
{"es", "", "", Spanish},
|
|
{"es", "", "419", SpanishLatinAmerica},
|
|
{"es", "", "MX", SpanishLatinAmerica},
|
|
{"es", "", "AR", SpanishLatinAmerica},
|
|
{"es", "", "BO", SpanishLatinAmerica},
|
|
{"es", "", "CL", SpanishLatinAmerica},
|
|
{"es", "", "CO", SpanishLatinAmerica},
|
|
{"es", "", "CR", SpanishLatinAmerica},
|
|
{"es", "", "CU", SpanishLatinAmerica},
|
|
{"es", "", "DO", SpanishLatinAmerica},
|
|
{"es", "", "EC", SpanishLatinAmerica},
|
|
{"es", "", "GT", SpanishLatinAmerica},
|
|
{"es", "", "HN", SpanishLatinAmerica},
|
|
{"es", "", "NI", SpanishLatinAmerica},
|
|
{"es", "", "PA", SpanishLatinAmerica},
|
|
{"es", "", "PE", SpanishLatinAmerica},
|
|
{"es", "", "PR", SpanishLatinAmerica},
|
|
{"es", "", "PY", SpanishLatinAmerica},
|
|
{"es", "", "SV", SpanishLatinAmerica},
|
|
{"es", "", "US", SpanishLatinAmerica},
|
|
{"es", "", "UY", SpanishLatinAmerica},
|
|
{"es", "", "VE", SpanishLatinAmerica},
|
|
{"pt", "", "", PortugueseBrazil},
|
|
{"pt", "", "PT", PortuguesePortugal},
|
|
{"pt", "", "AO", PortuguesePortugal},
|
|
{"pt", "", "MZ", PortuguesePortugal},
|
|
{"pt", "", "CV", PortuguesePortugal},
|
|
{"pt", "", "GW", PortuguesePortugal},
|
|
{"pt", "", "ST", PortuguesePortugal},
|
|
{"pt", "", "TL", PortuguesePortugal},
|
|
{"pt", "", "MO", PortuguesePortugal},
|
|
};
|
|
|
|
inline constexpr Row ChineseRows[] = {
|
|
{"zh", "", "", ChineseSimplified},
|
|
{"zh", "Hans", "", ChineseSimplified},
|
|
{"zh", "Hant", "", ChineseTraditional},
|
|
{"zh", "", "TW", ChineseTraditional},
|
|
{"zh", "", "HK", ChineseTraditional},
|
|
{"zh", "", "MO", ChineseTraditional},
|
|
{"cmn", "", "", ChineseSimplified},
|
|
{"cmn", "Hant", "", ChineseTraditional},
|
|
{"cmn", "", "TW", ChineseTraditional},
|
|
{"yue", "", "", ChineseTraditional},
|
|
{"yue", "Hans", "", ChineseSimplified},
|
|
};
|
|
|
|
inline constexpr Row JapaneseKoreanRows[] = {
|
|
{"ja", "", "", Japanese},
|
|
{"ko", "", "", Korean},
|
|
};
|
|
|
|
inline constexpr Row SlavicNordicRows[] = {
|
|
{"ru", "", "", Russian},
|
|
{"uk", "", "", Ukrainian},
|
|
{"pl", "", "", Polish},
|
|
{"cs", "", "", Czech},
|
|
{"fi", "", "", Finnish},
|
|
{"sv", "", "", Swedish},
|
|
{"da", "", "", Danish},
|
|
{"no", "", "", Norwegian},
|
|
{"nb", "", "", Norwegian},
|
|
{"nn", "", "", Norwegian},
|
|
};
|
|
|
|
inline constexpr Row OtherRows[] = {
|
|
{"ar", "", "", Arabic},
|
|
{"th", "", "", Thai},
|
|
{"vi", "", "", Vietnamese},
|
|
{"id", "", "", Indonesian},
|
|
{"in", "", "", Indonesian},
|
|
{"tr", "", "", Turkish},
|
|
{"el", "", "", Greek},
|
|
{"hu", "", "", Hungarian},
|
|
};
|
|
|
|
inline constexpr std::span<const Row> RowGroups[] = {
|
|
LatinEuropeanRows,
|
|
IberianRows,
|
|
ChineseRows,
|
|
JapaneseKoreanRows,
|
|
SlavicNordicRows,
|
|
OtherRows,
|
|
};
|
|
|
|
}
|
|
|
|
inline bool ParseTag(std::string_view text, Tag& tag) {
|
|
Tag parsed;
|
|
std::size_t index = 0;
|
|
bool seenScript = false;
|
|
bool seenRegion = false;
|
|
bool tail = false;
|
|
std::size_t position = 0;
|
|
while (true) {
|
|
const std::size_t end = text.find('-', position);
|
|
const std::string_view subtag = text.substr(position, end == std::string_view::npos ? std::string_view::npos : end - position);
|
|
if (subtag.empty() || subtag.size() > 8 || !Detail::AllOf(subtag, Detail::IsAlphanumeric)) return false;
|
|
if (index == 0) {
|
|
if ((subtag.size() != 2 && subtag.size() != 3) || !Detail::AllOf(subtag, Detail::IsAlpha)) return false;
|
|
for (char c : subtag) parsed.language += Detail::Lower(c);
|
|
} else if (!tail) {
|
|
if (subtag.size() == 1) {
|
|
tail = true;
|
|
} else if (!seenScript && !seenRegion && subtag.size() == 4 && Detail::AllOf(subtag, Detail::IsAlpha)) {
|
|
seenScript = true;
|
|
parsed.script += Detail::Upper(subtag[0]);
|
|
for (std::size_t i = 1; i < subtag.size(); ++i) parsed.script += Detail::Lower(subtag[i]);
|
|
} else if (!seenRegion && ((subtag.size() == 2 && Detail::AllOf(subtag, Detail::IsAlpha)) || (subtag.size() == 3 && Detail::AllOf(subtag, Detail::IsDigit)))) {
|
|
seenRegion = true;
|
|
for (char c : subtag) parsed.region += Detail::Upper(c);
|
|
} else {
|
|
tail = true;
|
|
}
|
|
}
|
|
++index;
|
|
if (end == std::string_view::npos) break;
|
|
position = end + 1;
|
|
}
|
|
tag = std::move(parsed);
|
|
return true;
|
|
}
|
|
|
|
inline std::string NormalizePosixLocale(std::string_view text) {
|
|
std::string_view modifier;
|
|
if (const std::size_t at = text.find('@'); at != std::string_view::npos) {
|
|
modifier = text.substr(at + 1);
|
|
text = text.substr(0, at);
|
|
}
|
|
text = text.substr(0, text.find('.'));
|
|
std::string name;
|
|
for (char c : text) name += c == '_' ? '-' : c;
|
|
if (name.empty() || Detail::EqualsIgnoringCase(name, "C") || Detail::EqualsIgnoringCase(name, "POSIX")) return {};
|
|
std::string_view script;
|
|
if (Detail::EqualsIgnoringCase(modifier, "latin")) script = "Latn";
|
|
if (Detail::EqualsIgnoringCase(modifier, "cyrillic")) script = "Cyrl";
|
|
if (!script.empty()) {
|
|
const std::size_t dash = name.find('-');
|
|
const std::string_view second = dash == std::string::npos ? std::string_view{} : std::string_view(name).substr(dash + 1, 4);
|
|
const bool hasScript = second.size() == 4 && Detail::AllOf(second, Detail::IsAlpha) && (dash + 5 == name.size() || name[dash + 5] == '-');
|
|
if (!hasScript) name.insert(dash == std::string::npos ? name.size() : dash, std::string("-") + std::string(script));
|
|
}
|
|
return name;
|
|
}
|
|
|
|
inline bool ParseLocale(std::string_view text, Tag& tag) {
|
|
const std::string normalised = NormalizePosixLocale(text);
|
|
return !normalised.empty() && ParseTag(normalised, tag);
|
|
}
|
|
|
|
inline int ConsoleLanguageForTag(const Tag& tag) {
|
|
int best = NoConsoleLanguage;
|
|
int bestScore = -1;
|
|
for (const std::span<const Row> group : Detail::RowGroups) {
|
|
for (const Row& row : group) {
|
|
if (row.language != tag.language) continue;
|
|
if (!row.script.empty() && row.script != tag.script) continue;
|
|
if (!row.region.empty() && row.region != tag.region) continue;
|
|
const int score = (row.script.empty() ? 0 : 2) + (row.region.empty() ? 0 : 1);
|
|
if (score > bestScore) {
|
|
best = row.id;
|
|
bestScore = score;
|
|
}
|
|
}
|
|
}
|
|
return best;
|
|
}
|
|
|
|
struct Match {
|
|
int id;
|
|
bool recognised;
|
|
};
|
|
|
|
inline Match MatchLocale(std::string_view locale) {
|
|
Tag tag;
|
|
const int id = ParseLocale(locale, tag) ? ConsoleLanguageForTag(tag) : NoConsoleLanguage;
|
|
if (id == NoConsoleLanguage) return {EnglishUs, false};
|
|
return {id, true};
|
|
}
|
|
|
|
using Environment = std::function<const char*(const char*)>;
|
|
|
|
inline std::vector<std::string> PosixHostLocales(const Environment& environment) {
|
|
const auto read = [&environment](const char* name) {
|
|
const char* value = environment(name);
|
|
return std::string_view(value != nullptr ? value : "");
|
|
};
|
|
std::string_view effective;
|
|
for (const char* name : {"LC_ALL", "LC_MESSAGES", "LANG"}) {
|
|
effective = read(name);
|
|
if (!effective.empty()) break;
|
|
}
|
|
std::vector<std::string> locales;
|
|
if (!NormalizePosixLocale(effective).empty()) {
|
|
std::string_view preferred = read("LANGUAGE");
|
|
while (!preferred.empty()) {
|
|
const std::size_t colon = preferred.find(':');
|
|
const std::string_view entry = preferred.substr(0, colon);
|
|
if (!entry.empty()) locales.emplace_back(entry);
|
|
preferred = colon == std::string_view::npos ? std::string_view{} : preferred.substr(colon + 1);
|
|
}
|
|
}
|
|
if (!effective.empty()) locales.emplace_back(effective);
|
|
return locales;
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|