b64df2bf74
HarfBuzz: Update to version 7.3.0 ICU4C: Update to version 73.1 FreeType: Update to version 2.13.0
114 lines
3.5 KiB
C++
114 lines
3.5 KiB
C++
// © 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) 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) 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
|