// © 2019 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html // lsr.cpp // created: 2019may08 Markus W. Scherer #include "unicode/utypes.h" #include "charstr.h" #include "cmemory.h" #include "cstring.h" #include "lsr.h" #include "uinvchar.h" #include "ustr_imp.h" U_NAMESPACE_BEGIN LSR::LSR(char prefix, const char *lang, const char *scr, const char *r, int32_t f, UErrorCode &errorCode) : language(nullptr), script(nullptr), region(r), regionIndex(indexForRegion(region)), flags(f) { if (U_SUCCESS(errorCode)) { CharString langScript; langScript.append(prefix, errorCode).append(lang, errorCode).append('\0', errorCode); int32_t scriptOffset = langScript.length(); langScript.append(prefix, errorCode).append(scr, errorCode); owned = langScript.cloneData(errorCode); if (U_SUCCESS(errorCode)) { language = owned; script = owned + scriptOffset; } } } LSR::LSR(LSR &&other) U_NOEXCEPT : language(other.language), script(other.script), region(other.region), owned(other.owned), regionIndex(other.regionIndex), flags(other.flags), hashCode(other.hashCode) { if (owned != nullptr) { other.language = other.script = ""; other.owned = nullptr; other.hashCode = 0; } } void LSR::deleteOwned() { uprv_free(owned); } LSR &LSR::operator=(LSR &&other) U_NOEXCEPT { this->~LSR(); language = other.language; script = other.script; region = other.region; regionIndex = other.regionIndex; flags = other.flags; owned = other.owned; hashCode = other.hashCode; if (owned != nullptr) { other.language = other.script = ""; other.owned = nullptr; other.hashCode = 0; } return *this; } UBool LSR::isEquivalentTo(const LSR &other) const { return uprv_strcmp(language, other.language) == 0 && uprv_strcmp(script, other.script) == 0 && regionIndex == other.regionIndex && // Compare regions if both are ill-formed (and their indexes are 0). (regionIndex > 0 || uprv_strcmp(region, other.region) == 0); } bool LSR::operator==(const LSR &other) const { return uprv_strcmp(language, other.language) == 0 && uprv_strcmp(script, other.script) == 0 && regionIndex == other.regionIndex && // Compare regions if both are ill-formed (and their indexes are 0). (regionIndex > 0 || uprv_strcmp(region, other.region) == 0) && flags == other.flags; } int32_t LSR::indexForRegion(const char *region) { int32_t c = region[0]; int32_t a = c - '0'; if (0 <= a && a <= 9) { // digits: "419" int32_t b = region[1] - '0'; if (b < 0 || 9 < b) { return 0; } c = region[2] - '0'; if (c < 0 || 9 < c || region[3] != 0) { return 0; } return (10 * a + b) * 10 + c + 1; } else { // letters: "DE" a = uprv_upperOrdinal(c); if (a < 0 || 25 < a) { return 0; } int32_t b = uprv_upperOrdinal(region[1]); if (b < 0 || 25 < b || region[2] != 0) { return 0; } return 26 * a + b + 1001; } return 0; } LSR &LSR::setHashCode() { if (hashCode == 0) { uint32_t h = ustr_hashCharsN(language, static_cast<int32_t>(uprv_strlen(language))); h = h * 37 + ustr_hashCharsN(script, static_cast<int32_t>(uprv_strlen(script))); h = h * 37 + regionIndex; hashCode = h * 37 + flags; } return *this; } U_NAMESPACE_END