2141 lines
69 KiB
C++
2141 lines
69 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 2011-2012, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/calendar.h"
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#include "unicode/tzfmt.h"
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#include "unicode/numsys.h"
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#include "unicode/uchar.h"
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#include "unicode/udat.h"
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#include "tzgnames.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "putilimp.h"
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#include "uassert.h"
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#include "ucln_in.h"
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#include "umutex.h"
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#include "uresimp.h"
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#include "ureslocs.h"
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#include "uvector.h"
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#include "zonemeta.h"
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U_NAMESPACE_BEGIN
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static const char gZoneStringsTag[] = "zoneStrings";
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static const char gGmtFormatTag[]= "gmtFormat";
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static const char gGmtZeroFormatTag[] = "gmtZeroFormat";
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static const char gHourFormatTag[]= "hourFormat";
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static const UChar TZID_GMT[] = {0x0045, 0x0074, 0x0063, 0x002F, 0x0047, 0x004D, 0x0054, 0}; // Etc/GMT
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static const UChar DEFAULT_GMT_PATTERN[] = {0x0047, 0x004D, 0x0054, 0x007B, 0x0030, 0x007D, 0}; // GMT{0}
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//static const UChar DEFAULT_GMT_ZERO[] = {0x0047, 0x004D, 0x0054, 0}; // GMT
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static const UChar DEFAULT_GMT_POSITIVE_HM[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0}; // +HH:mm
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static const UChar DEFAULT_GMT_POSITIVE_HMS[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0}; // +HH:mm:ss
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static const UChar DEFAULT_GMT_NEGATIVE_HM[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0}; // -HH:mm
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static const UChar DEFAULT_GMT_NEGATIVE_HMS[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0}; // -HH:mm:ss
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static const UChar32 DEFAULT_GMT_DIGITS[] = {
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0x0030, 0x0031, 0x0032, 0x0033, 0x0034,
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0x0035, 0x0036, 0x0037, 0x0038, 0x0039
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};
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static const UChar DEFAULT_GMT_OFFSET_SEP = 0x003A; // ':'
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static const UChar ARG0[] = {0x007B, 0x0030, 0x007D}; // "{0}"
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static const int ARG0_LEN = 3;
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static const UChar DEFAULT_GMT_OFFSET_MINUTE_PATTERN[] = {0x006D, 0x006D, 0}; // "mm"
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static const UChar DEFAULT_GMT_OFFSET_SECOND_PATTERN[] = {0x0073, 0x0073, 0}; // "ss"
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static const UChar ALT_GMT_STRINGS[][4] = {
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{0x0047, 0x004D, 0x0054, 0}, // GMT
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{0x0055, 0x0054, 0x0043, 0}, // UTC
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{0x0055, 0x0054, 0, 0}, // UT
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{0, 0, 0, 0}
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};
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// Order of GMT offset pattern parsing, *_HMS must be evaluated first
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// because *_HM is most likely a substring of *_HMS
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static const int32_t PARSE_GMT_OFFSET_TYPES[] = {
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UTZFMT_PAT_POSITIVE_HMS,
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UTZFMT_PAT_NEGATIVE_HMS,
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UTZFMT_PAT_POSITIVE_HM,
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UTZFMT_PAT_NEGATIVE_HM,
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-1
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};
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static const UChar SINGLEQUOTE = 0x0027;
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static const UChar PLUS = 0x002B;
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static const UChar MINUS = 0x002D;
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static const UChar ISO8601_UTC = 0x005A; // 'Z'
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static const UChar ISO8601_SEP = 0x003A; // ':'
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static const int32_t MILLIS_PER_HOUR = 60 * 60 * 1000;
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static const int32_t MILLIS_PER_MINUTE = 60 * 1000;
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static const int32_t MILLIS_PER_SECOND = 1000;
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// Maximum offset (exclusive) in millisecond supported by offset formats
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static int32_t MAX_OFFSET = 24 * MILLIS_PER_HOUR;
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// Maximum values for GMT offset fields
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static const int32_t MAX_OFFSET_HOUR = 23;
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static const int32_t MAX_OFFSET_MINUTE = 59;
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static const int32_t MAX_OFFSET_SECOND = 59;
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static const int32_t UNKNOWN_OFFSET = 0x7FFFFFFF;
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static const int32_t ALL_SPECIFIC_NAME_TYPES = UTZNM_LONG_STANDARD | UTZNM_LONG_DAYLIGHT | UTZNM_SHORT_STANDARD | UTZNM_SHORT_DAYLIGHT;
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static const int32_t ALL_GENERIC_NAME_TYPES = UTZGNM_LOCATION | UTZGNM_LONG | UTZGNM_SHORT;
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#define STYLE_FLAG(c) (1 << (c))
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#define DIGIT_VAL(c) (0x0030 <= (c) && (c) <= 0x0039 ? (c) - 0x0030 : -1)
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#define MAX_OFFSET_DIGITS 6
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// ------------------------------------------------------------------
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// GMTOffsetField
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//
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// This class represents a localized GMT offset pattern
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// item and used by TimeZoneFormat
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// ------------------------------------------------------------------
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class GMTOffsetField : public UMemory {
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public:
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enum FieldType {
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TEXT = 0,
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HOUR = 1,
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MINUTE = 2,
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SECOND = 4
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};
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virtual ~GMTOffsetField();
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static GMTOffsetField* createText(const UnicodeString& text, UErrorCode& status);
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static GMTOffsetField* createTimeField(FieldType type, uint8_t width, UErrorCode& status);
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static UBool isValid(FieldType type, int32_t width);
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static FieldType getTypeByLetter(UChar ch);
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FieldType getType() const;
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uint8_t getWidth() const;
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const UChar* getPatternText(void) const;
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private:
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UChar* fText;
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FieldType fType;
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uint8_t fWidth;
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GMTOffsetField();
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};
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GMTOffsetField::GMTOffsetField()
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: fText(NULL), fType(TEXT), fWidth(0) {
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}
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GMTOffsetField::~GMTOffsetField() {
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if (fText) {
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uprv_free(fText);
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}
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}
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GMTOffsetField*
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GMTOffsetField::createText(const UnicodeString& text, UErrorCode& status) {
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if (U_FAILURE(status)) {
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return NULL;
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}
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GMTOffsetField* result = new GMTOffsetField();
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if (result == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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int32_t len = text.length();
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result->fText = (UChar*)uprv_malloc((len + 1) * sizeof(UChar));
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if (result->fText == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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delete result;
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return NULL;
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}
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u_strncpy(result->fText, text.getBuffer(), len);
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result->fText[len] = 0;
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result->fType = TEXT;
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return result;
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}
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GMTOffsetField*
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GMTOffsetField::createTimeField(FieldType type, uint8_t width, UErrorCode& status) {
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U_ASSERT(type != TEXT);
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if (U_FAILURE(status)) {
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return NULL;
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}
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GMTOffsetField* result = new GMTOffsetField();
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if (result == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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result->fType = type;
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result->fWidth = width;
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return result;
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}
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UBool
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GMTOffsetField::isValid(FieldType type, int32_t width) {
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switch (type) {
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case HOUR:
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return (width == 1 || width == 2);
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case MINUTE:
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case SECOND:
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return (width == 2);
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default:
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U_ASSERT(FALSE);
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}
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return (width > 0);
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}
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GMTOffsetField::FieldType
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GMTOffsetField::getTypeByLetter(UChar ch) {
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if (ch == 0x0048 /* H */) {
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return HOUR;
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} else if (ch == 0x006D /* m */) {
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return MINUTE;
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} else if (ch == 0x0073 /* s */) {
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return SECOND;
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}
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return TEXT;
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}
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inline GMTOffsetField::FieldType
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GMTOffsetField::getType() const {
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return fType;
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}
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inline uint8_t
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GMTOffsetField::getWidth() const {
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return fWidth;
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}
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inline const UChar*
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GMTOffsetField::getPatternText(void) const {
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return fText;
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}
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U_CDECL_BEGIN
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static void U_CALLCONV
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deleteGMTOffsetField(void *obj) {
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delete static_cast<GMTOffsetField *>(obj);
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}
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U_CDECL_END
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// ------------------------------------------------------------------
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// TimeZoneFormat
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// ------------------------------------------------------------------
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TimeZoneFormat)
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TimeZoneFormat::TimeZoneFormat(const Locale& locale, UErrorCode& status)
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: fLock(NULL),fLocale(locale), fTimeZoneNames(NULL), fTimeZoneGenericNames(NULL), fDefParseOptionFlags(0) {
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for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) {
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fGMTOffsetPatternItems[i] = NULL;
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}
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const char* region = fLocale.getCountry();
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int32_t regionLen = uprv_strlen(region);
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if (regionLen == 0) {
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char loc[ULOC_FULLNAME_CAPACITY];
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uloc_addLikelySubtags(fLocale.getName(), loc, sizeof(loc), &status);
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regionLen = uloc_getCountry(loc, fTargetRegion, sizeof(fTargetRegion), &status);
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if (U_SUCCESS(status)) {
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fTargetRegion[regionLen] = 0;
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} else {
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return;
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}
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} else if (regionLen < (int32_t)sizeof(fTargetRegion)) {
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uprv_strcpy(fTargetRegion, region);
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} else {
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fTargetRegion[0] = 0;
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}
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fTimeZoneNames = TimeZoneNames::createInstance(locale, status);
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// fTimeZoneGenericNames is lazily instantiated
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const UChar* gmtPattern = NULL;
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const UChar* hourFormats = NULL;
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UResourceBundle *zoneBundle = ures_open(U_ICUDATA_ZONE, locale.getName(), &status);
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UResourceBundle *zoneStringsArray = ures_getByKeyWithFallback(zoneBundle, gZoneStringsTag, NULL, &status);
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if (U_SUCCESS(status)) {
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const UChar* resStr;
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int32_t len;
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resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gGmtFormatTag, &len, &status);
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if (len > 0) {
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gmtPattern = resStr;
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}
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resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gGmtZeroFormatTag, &len, &status);
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if (len > 0) {
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fGMTZeroFormat.setTo(TRUE, resStr, len);
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}
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resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gHourFormatTag, &len, &status);
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if (len > 0) {
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hourFormats = resStr;
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}
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ures_close(zoneStringsArray);
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ures_close(zoneBundle);
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}
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if (gmtPattern == NULL) {
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gmtPattern = DEFAULT_GMT_PATTERN;
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}
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initGMTPattern(UnicodeString(gmtPattern, -1), status);
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UBool useDefHourFmt = TRUE;
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if (hourFormats) {
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UChar *sep = u_strchr(hourFormats, (UChar)0x003B /* ';' */);
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if (sep != NULL) {
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fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM].setTo(FALSE, hourFormats, (int32_t)(sep - hourFormats));
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fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM].setTo(TRUE, sep + 1, -1);
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expandOffsetPattern(fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM], fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HMS]);
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expandOffsetPattern(fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM], fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HMS]);
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useDefHourFmt = FALSE;
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}
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}
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if (useDefHourFmt) {
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fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM].setTo(TRUE, DEFAULT_GMT_POSITIVE_HM, -1);
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fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HMS].setTo(TRUE, DEFAULT_GMT_POSITIVE_HMS, -1);
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fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM].setTo(TRUE, DEFAULT_GMT_NEGATIVE_HM, -1);
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fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HMS].setTo(TRUE, DEFAULT_GMT_NEGATIVE_HMS, -1);
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}
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initGMTOffsetPatterns(status);
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NumberingSystem* ns = NumberingSystem::createInstance(locale, status);
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UBool useDefDigits = TRUE;
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if (ns && !ns->isAlgorithmic()) {
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UnicodeString digits = ns->getDescription();
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useDefDigits = !toCodePoints(digits, fGMTOffsetDigits, 10);
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}
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if (useDefDigits) {
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uprv_memcpy(fGMTOffsetDigits, DEFAULT_GMT_DIGITS, sizeof(UChar32) * 10);
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}
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delete ns;
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}
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TimeZoneFormat::TimeZoneFormat(const TimeZoneFormat& other)
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: Format(other), fTimeZoneNames(NULL), fTimeZoneGenericNames(NULL) {
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for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) {
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fGMTOffsetPatternItems[i] = NULL;
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}
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*this = other;
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}
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TimeZoneFormat::~TimeZoneFormat() {
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delete fTimeZoneNames;
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delete fTimeZoneGenericNames;
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for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) {
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delete fGMTOffsetPatternItems[i];
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}
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umtx_destroy(&fLock);
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}
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TimeZoneFormat&
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TimeZoneFormat::operator=(const TimeZoneFormat& other) {
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if (this == &other) {
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return *this;
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}
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delete fTimeZoneNames;
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delete fTimeZoneGenericNames;
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fTimeZoneGenericNames = NULL;
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fLocale = other.fLocale;
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uprv_memcpy(fTargetRegion, other.fTargetRegion, sizeof(fTargetRegion));
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fTimeZoneNames = other.fTimeZoneNames->clone();
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if (other.fTimeZoneGenericNames) {
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fTimeZoneGenericNames = other.fTimeZoneGenericNames->clone();
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}
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fGMTPattern = other.fGMTPattern;
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fGMTPatternPrefix = other.fGMTPatternPrefix;
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fGMTPatternSuffix = other.fGMTPatternSuffix;
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UErrorCode status = U_ZERO_ERROR;
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for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) {
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fGMTOffsetPatterns[i] = other.fGMTOffsetPatterns[i];
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delete fGMTOffsetPatternItems[i];
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}
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initGMTOffsetPatterns(status);
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U_ASSERT(U_SUCCESS(status));
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fGMTZeroFormat = other.fGMTZeroFormat;
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uprv_memcpy(fGMTOffsetDigits, other.fGMTOffsetDigits, sizeof(fGMTOffsetDigits));
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fDefParseOptionFlags = other.fDefParseOptionFlags;
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return *this;
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}
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UBool
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TimeZoneFormat::operator==(const Format& other) const {
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TimeZoneFormat* tzfmt = (TimeZoneFormat*)&other;
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UBool isEqual =
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fLocale == tzfmt->fLocale
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&& fGMTPattern == tzfmt->fGMTPattern
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&& fGMTZeroFormat == tzfmt->fGMTZeroFormat
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&& *fTimeZoneNames == *tzfmt->fTimeZoneNames;
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for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS && isEqual; i++) {
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isEqual = fGMTOffsetPatterns[i] == tzfmt->fGMTOffsetPatterns[i];
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}
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for (int32_t i = 0; i < 10 && isEqual; i++) {
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isEqual = fGMTOffsetDigits[i] == tzfmt->fGMTOffsetDigits[i];
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}
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// TODO
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// Check fTimeZoneGenericNames. For now,
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// if fTimeZoneNames is same, fTimeZoneGenericNames should
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// be also equivalent.
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return isEqual;
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}
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Format*
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TimeZoneFormat::clone() const {
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return new TimeZoneFormat(*this);
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}
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TimeZoneFormat* U_EXPORT2
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TimeZoneFormat::createInstance(const Locale& locale, UErrorCode& status) {
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TimeZoneFormat* tzfmt = new TimeZoneFormat(locale, status);
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if (U_SUCCESS(status)) {
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return tzfmt;
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}
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delete tzfmt;
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return NULL;
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}
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// ------------------------------------------------------------------
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// Setter and Getter
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const TimeZoneNames*
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TimeZoneFormat::getTimeZoneNames() const {
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return (const TimeZoneNames*)fTimeZoneNames;
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}
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void
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TimeZoneFormat::adoptTimeZoneNames(TimeZoneNames *tznames) {
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delete fTimeZoneNames;
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fTimeZoneNames = tznames;
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// TODO - We should also update fTimeZoneGenericNames
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}
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void
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TimeZoneFormat::setTimeZoneNames(const TimeZoneNames &tznames) {
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delete fTimeZoneNames;
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fTimeZoneNames = tznames.clone();
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// TODO - We should also update fTimeZoneGenericNames
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}
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void
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TimeZoneFormat::setDefaultParseOptions(int32_t flags) {
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fDefParseOptionFlags = flags;
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}
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int32_t
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TimeZoneFormat::getDefaultParseOptions(void) const {
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return fDefParseOptionFlags;
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}
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UnicodeString&
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TimeZoneFormat::getGMTPattern(UnicodeString& pattern) const {
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return pattern.setTo(fGMTPattern);
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}
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void
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TimeZoneFormat::setGMTPattern(const UnicodeString& pattern, UErrorCode& status) {
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initGMTPattern(pattern, status);
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}
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UnicodeString&
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TimeZoneFormat::getGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, UnicodeString& pattern) const {
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return pattern.setTo(fGMTOffsetPatterns[type]);
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}
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void
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TimeZoneFormat::setGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, const UnicodeString& pattern, UErrorCode& status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
if (pattern == fGMTOffsetPatterns[type]) {
|
|
// No need to reset
|
|
return;
|
|
}
|
|
|
|
OffsetFields required = (type == UTZFMT_PAT_POSITIVE_HMS || type == UTZFMT_PAT_NEGATIVE_HMS) ? FIELDS_HMS : FIELDS_HM;
|
|
|
|
UVector* patternItems = parseOffsetPattern(pattern, required, status);
|
|
if (patternItems == NULL) {
|
|
return;
|
|
}
|
|
|
|
fGMTOffsetPatterns[type].setTo(pattern);
|
|
delete fGMTOffsetPatternItems[type];
|
|
fGMTOffsetPatternItems[type] = patternItems;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::getGMTOffsetDigits(UnicodeString& digits) const {
|
|
digits.remove();
|
|
for (int32_t i = 0; i < 10; i++) {
|
|
digits.append(fGMTOffsetDigits[i]);
|
|
}
|
|
return digits;
|
|
}
|
|
|
|
void
|
|
TimeZoneFormat::setGMTOffsetDigits(const UnicodeString& digits, UErrorCode& status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
UChar32 digitArray[10];
|
|
if (!toCodePoints(digits, digitArray, 10)) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
uprv_memcpy(fGMTOffsetDigits, digitArray, sizeof(UChar32)*10);
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::getGMTZeroFormat(UnicodeString& gmtZeroFormat) const {
|
|
return gmtZeroFormat.setTo(fGMTZeroFormat);
|
|
}
|
|
|
|
void
|
|
TimeZoneFormat::setGMTZeroFormat(const UnicodeString& gmtZeroFormat, UErrorCode& status) {
|
|
if (U_SUCCESS(status)) {
|
|
if (gmtZeroFormat.isEmpty()) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
} else if (gmtZeroFormat != fGMTZeroFormat) {
|
|
fGMTZeroFormat.setTo(gmtZeroFormat);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// Format and Parse
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::format(UTimeZoneFormatStyle style, const TimeZone& tz, UDate date,
|
|
UnicodeString& name, UTimeZoneFormatTimeType* timeType /* = NULL */) const {
|
|
if (timeType) {
|
|
*timeType = UTZFMT_TIME_TYPE_UNKNOWN;
|
|
}
|
|
switch (style) {
|
|
case UTZFMT_STYLE_GENERIC_LOCATION:
|
|
formatGeneric(tz, UTZGNM_LOCATION, date, name);
|
|
break;
|
|
case UTZFMT_STYLE_GENERIC_LONG:
|
|
formatGeneric(tz, UTZGNM_LONG, date, name);
|
|
break;
|
|
case UTZFMT_STYLE_GENERIC_SHORT:
|
|
formatGeneric(tz, UTZGNM_SHORT, date, name);
|
|
break;
|
|
case UTZFMT_STYLE_SPECIFIC_LONG:
|
|
formatSpecific(tz, UTZNM_LONG_STANDARD, UTZNM_LONG_DAYLIGHT, date, name, timeType);
|
|
break;
|
|
case UTZFMT_STYLE_SPECIFIC_SHORT:
|
|
formatSpecific(tz, UTZNM_SHORT_STANDARD, UTZNM_SHORT_DAYLIGHT, date, name, timeType);
|
|
break;
|
|
case UTZFMT_STYLE_RFC822:
|
|
case UTZFMT_STYLE_ISO8601:
|
|
case UTZFMT_STYLE_LOCALIZED_GMT:
|
|
// will be handled below
|
|
break;
|
|
}
|
|
|
|
if (name.isEmpty()) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
int32_t rawOffset, dstOffset;
|
|
tz.getOffset(date, FALSE, rawOffset, dstOffset, status);
|
|
if (U_SUCCESS(status)) {
|
|
switch (style) {
|
|
case UTZFMT_STYLE_RFC822:
|
|
formatOffsetRFC822(rawOffset + dstOffset, name, status);
|
|
break;
|
|
case UTZFMT_STYLE_ISO8601:
|
|
formatOffsetISO8601(rawOffset + dstOffset, name, status);
|
|
break;
|
|
default:
|
|
formatOffsetLocalizedGMT(rawOffset + dstOffset, name, status);
|
|
break;
|
|
}
|
|
if (timeType) {
|
|
*timeType = (dstOffset != 0) ? UTZFMT_TIME_TYPE_DAYLIGHT : UTZFMT_TIME_TYPE_STANDARD;
|
|
}
|
|
}
|
|
U_ASSERT(U_SUCCESS(status));
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::format(const Formattable& obj, UnicodeString& appendTo,
|
|
FieldPosition& pos, UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
return appendTo;
|
|
}
|
|
UDate date = Calendar::getNow();
|
|
if (obj.getType() == Formattable::kObject) {
|
|
const UObject* formatObj = obj.getObject();
|
|
const TimeZone* tz = dynamic_cast<const TimeZone*>(formatObj);
|
|
if (tz == NULL) {
|
|
const Calendar* cal = dynamic_cast<const Calendar*>(formatObj);
|
|
if (cal != NULL) {
|
|
tz = &cal->getTimeZone();
|
|
date = cal->getTime(status);
|
|
}
|
|
}
|
|
if (tz != NULL) {
|
|
int32_t rawOffset, dstOffset;
|
|
tz->getOffset(date, FALSE, rawOffset, dstOffset, status);
|
|
UnicodeString result;
|
|
formatOffsetLocalizedGMT(rawOffset + dstOffset, result, status);
|
|
if (U_SUCCESS(status)) {
|
|
appendTo.append(result);
|
|
if (pos.getField() == UDAT_TIMEZONE_FIELD) {
|
|
pos.setBeginIndex(0);
|
|
pos.setEndIndex(result.length());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return appendTo;
|
|
}
|
|
|
|
TimeZone*
|
|
TimeZoneFormat::parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
|
|
UTimeZoneFormatTimeType* timeType /*= NULL*/) const {
|
|
return parse(style, text, pos, getDefaultParseOptions(), timeType);
|
|
}
|
|
|
|
TimeZone*
|
|
TimeZoneFormat::parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
|
|
int32_t parseOptions, UTimeZoneFormatTimeType* timeType /* = NULL */) const {
|
|
if (timeType) {
|
|
*timeType = UTZFMT_TIME_TYPE_UNKNOWN;
|
|
}
|
|
|
|
int32_t startIdx = pos.getIndex();
|
|
int32_t maxPos = text.length();
|
|
int32_t offset;
|
|
|
|
UBool fallbackLocalizedGMT = FALSE;
|
|
if (style == UTZFMT_STYLE_SPECIFIC_LONG || style == UTZFMT_STYLE_SPECIFIC_SHORT
|
|
|| style == UTZFMT_STYLE_GENERIC_LONG || style == UTZFMT_STYLE_GENERIC_SHORT || style == UTZFMT_STYLE_GENERIC_LOCATION) {
|
|
// above styles may use localized gmt format as fallback
|
|
fallbackLocalizedGMT = TRUE;
|
|
}
|
|
|
|
int32_t evaluated = 0;
|
|
ParsePosition tmpPos(startIdx);
|
|
|
|
int32_t parsedOffset = UNKNOWN_OFFSET; // stores successfully parsed offset for later use
|
|
int32_t parsedPos = -1; // stores successfully parsed offset position for later use
|
|
|
|
// Try localized GMT format first if necessary
|
|
if (fallbackLocalizedGMT) {
|
|
UBool hasDigitOffset = FALSE;
|
|
offset = parseOffsetLocalizedGMT(text, tmpPos, &hasDigitOffset);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
// Even when the input text was successfully parsed as a localized GMT format text,
|
|
// we may still need to evaluate the specified style if -
|
|
// 1) GMT zero format was used, and
|
|
// 2) The input text was not completely processed
|
|
if (tmpPos.getIndex() == maxPos || hasDigitOffset) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
parsedOffset = offset;
|
|
parsedPos = tmpPos.getIndex();
|
|
}
|
|
evaluated |= STYLE_FLAG(UTZFMT_STYLE_LOCALIZED_GMT);
|
|
|
|
tmpPos.setIndex(startIdx);
|
|
tmpPos.setErrorIndex(-1);
|
|
}
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UnicodeString tzID;
|
|
UTimeZoneFormatTimeType parsedTimeType = UTZFMT_TIME_TYPE_UNKNOWN;
|
|
|
|
// Try the specified style
|
|
switch (style) {
|
|
case UTZFMT_STYLE_RFC822:
|
|
{
|
|
offset = parseOffsetRFC822(text, tmpPos);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case UTZFMT_STYLE_LOCALIZED_GMT:
|
|
{
|
|
offset = parseOffsetLocalizedGMT(text, tmpPos);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case UTZFMT_STYLE_ISO8601:
|
|
{
|
|
offset = parseOffsetISO8601(text, tmpPos);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
// Note: ISO 8601 parser also support basic format (without ':'),
|
|
// which is same with RFC 822 format.
|
|
evaluated |= STYLE_FLAG(UTZFMT_STYLE_RFC822);
|
|
}
|
|
break;
|
|
|
|
case UTZFMT_STYLE_SPECIFIC_LONG:
|
|
case UTZFMT_STYLE_SPECIFIC_SHORT:
|
|
{
|
|
// Specific styles
|
|
int32_t nameTypes = 0;
|
|
if (style == UTZFMT_STYLE_SPECIFIC_LONG) {
|
|
nameTypes = (UTZNM_LONG_STANDARD | UTZNM_LONG_DAYLIGHT);
|
|
} else {
|
|
U_ASSERT(style == UTZFMT_STYLE_SPECIFIC_SHORT);
|
|
nameTypes = (UTZNM_SHORT_STANDARD | UTZNM_SHORT_DAYLIGHT);
|
|
}
|
|
LocalPointer<TimeZoneNames::MatchInfoCollection> specificMatches(fTimeZoneNames->find(text, startIdx, nameTypes, status));
|
|
if (U_FAILURE(status)) {
|
|
pos.setErrorIndex(startIdx);
|
|
return NULL;
|
|
}
|
|
if (!specificMatches.isNull()) {
|
|
int32_t matchIdx = -1;
|
|
int32_t matchPos = -1;
|
|
for (int32_t i = 0; i < specificMatches->size(); i++) {
|
|
matchPos = startIdx + specificMatches->getMatchLengthAt(i);
|
|
if (matchPos > parsedPos) {
|
|
matchIdx = i;
|
|
parsedPos = matchPos;
|
|
}
|
|
}
|
|
if (matchIdx >= 0) {
|
|
if (timeType) {
|
|
*timeType = getTimeType(specificMatches->getNameTypeAt(matchIdx));
|
|
}
|
|
pos.setIndex(matchPos);
|
|
getTimeZoneID(specificMatches.getAlias(), matchIdx, tzID);
|
|
U_ASSERT(!tzID.isEmpty());
|
|
return TimeZone::createTimeZone(tzID);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case UTZFMT_STYLE_GENERIC_LONG:
|
|
case UTZFMT_STYLE_GENERIC_SHORT:
|
|
case UTZFMT_STYLE_GENERIC_LOCATION:
|
|
{
|
|
int32_t genericNameTypes = 0;
|
|
switch (style) {
|
|
case UTZFMT_STYLE_GENERIC_LOCATION:
|
|
genericNameTypes = UTZGNM_LOCATION;
|
|
break;
|
|
|
|
case UTZFMT_STYLE_GENERIC_LONG:
|
|
genericNameTypes = UTZGNM_LONG | UTZGNM_LOCATION;
|
|
break;
|
|
|
|
case UTZFMT_STYLE_GENERIC_SHORT:
|
|
genericNameTypes = UTZGNM_SHORT | UTZGNM_LOCATION;
|
|
break;
|
|
|
|
default:
|
|
U_ASSERT(FALSE);
|
|
}
|
|
|
|
int32_t len = 0;
|
|
const TimeZoneGenericNames *gnames = getTimeZoneGenericNames(status);
|
|
if (U_SUCCESS(status)) {
|
|
len = gnames->findBestMatch(text, startIdx, genericNameTypes, tzID, parsedTimeType, status);
|
|
}
|
|
if (U_FAILURE(status)) {
|
|
pos.setErrorIndex(startIdx);
|
|
return NULL;
|
|
}
|
|
if (len > 0) {
|
|
// Found a match
|
|
if (timeType) {
|
|
*timeType = parsedTimeType;
|
|
}
|
|
pos.setIndex(startIdx + len);
|
|
U_ASSERT(!tzID.isEmpty());
|
|
return TimeZone::createTimeZone(tzID);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
evaluated |= STYLE_FLAG(style);
|
|
|
|
|
|
if (parsedPos > startIdx) {
|
|
// When the specified style is one of SPECIFIC_XXX or GENERIC_XXX, we tried to parse the input
|
|
// as localized GMT format earlier. If parsedOffset is positive, it means it was successfully
|
|
// parsed as localized GMT format, but offset digits were not detected (more specifically, GMT
|
|
// zero format). Then, it tried to find a match within the set of display names, but could not
|
|
// find a match. At this point, we can safely assume the input text contains the localized
|
|
// GMT format.
|
|
U_ASSERT(parsedOffset != UNKNOWN_OFFSET);
|
|
pos.setIndex(parsedPos);
|
|
return createTimeZoneForOffset(parsedOffset);
|
|
}
|
|
|
|
// Failed to parse the input text as the time zone format in the specified style.
|
|
// Check the longest match among other styles below.
|
|
U_ASSERT(parsedPos < 0);
|
|
U_ASSERT(parsedOffset == UNKNOWN_OFFSET);
|
|
tmpPos.setIndex(startIdx);
|
|
tmpPos.setErrorIndex(-1);
|
|
|
|
// ISO 8601
|
|
if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_ISO8601)) == 0) {
|
|
UBool hasDigitOffset = FALSE;
|
|
offset = parseOffsetISO8601(text, tmpPos, FALSE, &hasDigitOffset);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
if (tmpPos.getIndex() == maxPos || hasDigitOffset) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
// Note: When ISO 8601 format contains offset digits, it should not
|
|
// collide with other formats (except RFC 822, which is compatible with
|
|
// ISO 8601 basic format). However, ISO 8601 UTC format "Z" (single letter)
|
|
// may collide with other names. In this case, we need to evaluate other
|
|
// names.
|
|
parsedOffset = offset;
|
|
parsedPos = tmpPos.getIndex();
|
|
U_ASSERT(parsedPos == startIdx + 1); // only when "Z" is used
|
|
}
|
|
tmpPos.setIndex(startIdx);
|
|
tmpPos.setErrorIndex(-1);
|
|
}
|
|
|
|
// RFC 822
|
|
// Note: ISO 8601 parser supports RFC 822 format. So we do not need to parse
|
|
// it as RFC 822 here. This might be changed in future when we support
|
|
// strict format option for ISO 8601 or RFC 822.
|
|
|
|
//if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_RFC822)) == 0) {
|
|
// offset = parseOffsetRFC822(text, tmpPos);
|
|
// if (tmpPos.getErrorIndex() == -1) {
|
|
// pos.setIndex(tmpPos.getIndex());
|
|
// return createTimeZoneForOffset(offset);
|
|
// }
|
|
// tmpPos.setIndex(startIdx);
|
|
// tmpPos.setErrorIndex(-1);
|
|
//}
|
|
|
|
// Localized GMT format
|
|
if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_LOCALIZED_GMT)) == 0) {
|
|
UBool hasDigitOffset = FALSE;
|
|
offset = parseOffsetLocalizedGMT(text, tmpPos, &hasDigitOffset);
|
|
if (tmpPos.getErrorIndex() == -1) {
|
|
if (tmpPos.getIndex() == maxPos || hasDigitOffset) {
|
|
pos.setIndex(tmpPos.getIndex());
|
|
return createTimeZoneForOffset(offset);
|
|
}
|
|
// Evaluate other names - see the comment earlier in this method.
|
|
parsedOffset = offset;
|
|
parsedPos = tmpPos.getIndex();
|
|
}
|
|
}
|
|
|
|
// When ParseOption.ALL_STYLES is available, we also try to look all possible display names.
|
|
// For example, when style is GENERIC_LONG, "EST" (SPECIFIC_SHORT) is never
|
|
// used for America/New_York. With parseAllStyles true, this code parses "EST"
|
|
// as America/New_York.
|
|
|
|
// Note: Adding all possible names into the trie used by the implementation is quite heavy operation,
|
|
// which we want to avoid normally (note that we cache the trie, so this is applicable to the
|
|
// first time only as long as the cache does not expire).
|
|
if (parseOptions & UTZFMT_PARSE_OPTION_ALL_STYLES) {
|
|
// Try all specific names first
|
|
LocalPointer<TimeZoneNames::MatchInfoCollection> spAllMatches(fTimeZoneNames->find(text, startIdx, ALL_SPECIFIC_NAME_TYPES, status));
|
|
if (U_FAILURE(status)) {
|
|
pos.setErrorIndex(startIdx);
|
|
return NULL;
|
|
}
|
|
int32_t spMatchIdx = -1;
|
|
if (!spAllMatches.isNull()) {
|
|
int32_t matchPos = -1;
|
|
for (int32_t i = 0; i < spAllMatches->size(); i++) {
|
|
matchPos = startIdx + spAllMatches->getMatchLengthAt(i);
|
|
if (matchPos > parsedPos) {
|
|
spMatchIdx = i;
|
|
parsedPos = matchPos;
|
|
}
|
|
}
|
|
}
|
|
int32_t genMatchLen = -1;
|
|
if (parsedPos < maxPos) {
|
|
const TimeZoneGenericNames *gnames = getTimeZoneGenericNames(status);
|
|
if (U_SUCCESS(status)) {
|
|
genMatchLen = gnames->findBestMatch(text, startIdx, ALL_GENERIC_NAME_TYPES, tzID, parsedTimeType, status);
|
|
}
|
|
if (U_FAILURE(status)) {
|
|
pos.setErrorIndex(startIdx);
|
|
return NULL;
|
|
}
|
|
}
|
|
// Pick up better match
|
|
if (startIdx + genMatchLen > parsedPos) {
|
|
// use generic name match
|
|
parsedPos = startIdx + genMatchLen;
|
|
if (timeType) {
|
|
*timeType = parsedTimeType;
|
|
}
|
|
pos.setIndex(parsedPos);
|
|
U_ASSERT(!tzID.isEmpty());
|
|
return TimeZone::createTimeZone(tzID);
|
|
} else if (spMatchIdx >= 0) {
|
|
// use specific name match
|
|
if (timeType) {
|
|
*timeType = getTimeType(spAllMatches->getNameTypeAt(spMatchIdx));
|
|
}
|
|
pos.setIndex(parsedPos);
|
|
getTimeZoneID(spAllMatches.getAlias(), spMatchIdx, tzID);
|
|
U_ASSERT(!tzID.isEmpty());
|
|
return TimeZone::createTimeZone(tzID);
|
|
}
|
|
}
|
|
|
|
if (parsedPos > startIdx) {
|
|
// Parsed successfully as one of 'offset' format
|
|
U_ASSERT(parsedOffset != UNKNOWN_OFFSET);
|
|
pos.setIndex(parsedPos);
|
|
return createTimeZoneForOffset(parsedOffset);
|
|
}
|
|
|
|
pos.setErrorIndex(startIdx);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
TimeZoneFormat::parseObject(const UnicodeString& source, Formattable& result,
|
|
ParsePosition& parse_pos) const {
|
|
result.adoptObject(parse(UTZFMT_STYLE_GENERIC_LOCATION, source, parse_pos, UTZFMT_PARSE_OPTION_ALL_STYLES));
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// Private zone name format/parse implementation
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatGeneric(const TimeZone& tz, int32_t genType, UDate date, UnicodeString& name) const {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
const TimeZoneGenericNames* gnames = getTimeZoneGenericNames(status);
|
|
if (U_FAILURE(status)) {
|
|
name.setToBogus();
|
|
return name;
|
|
}
|
|
|
|
if (genType == UTZGNM_LOCATION) {
|
|
const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(tz);
|
|
if (canonicalID == NULL) {
|
|
name.setToBogus();
|
|
return name;
|
|
}
|
|
return gnames->getGenericLocationName(UnicodeString(canonicalID), name);
|
|
}
|
|
return gnames->getDisplayName(tz, (UTimeZoneGenericNameType)genType, date, name);
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatSpecific(const TimeZone& tz, UTimeZoneNameType stdType, UTimeZoneNameType dstType,
|
|
UDate date, UnicodeString& name, UTimeZoneFormatTimeType *timeType) const {
|
|
if (fTimeZoneNames == NULL) {
|
|
name.setToBogus();
|
|
return name;
|
|
}
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UBool isDaylight = tz.inDaylightTime(date, status);
|
|
const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(tz);
|
|
|
|
if (U_FAILURE(status) || canonicalID == NULL) {
|
|
name.setToBogus();
|
|
return name;
|
|
}
|
|
|
|
if (isDaylight) {
|
|
fTimeZoneNames->getDisplayName(UnicodeString(canonicalID), dstType, date, name);
|
|
} else {
|
|
fTimeZoneNames->getDisplayName(UnicodeString(canonicalID), stdType, date, name);
|
|
}
|
|
|
|
if (timeType && !name.isEmpty()) {
|
|
*timeType = isDaylight ? UTZFMT_TIME_TYPE_DAYLIGHT : UTZFMT_TIME_TYPE_STANDARD;
|
|
}
|
|
return name;
|
|
}
|
|
|
|
const TimeZoneGenericNames*
|
|
TimeZoneFormat::getTimeZoneGenericNames(UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
|
|
UBool create;
|
|
UMTX_CHECK(&gZoneMetaLock, (fTimeZoneGenericNames == NULL), create);
|
|
if (create) {
|
|
TimeZoneFormat *nonConstThis = const_cast<TimeZoneFormat *>(this);
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
if (fTimeZoneGenericNames == NULL) {
|
|
nonConstThis->fTimeZoneGenericNames = TimeZoneGenericNames::createInstance(fLocale, status);
|
|
}
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
}
|
|
|
|
return fTimeZoneGenericNames;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// Zone offset format and parse
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatOffsetRFC822(int32_t offset, UnicodeString& result, UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
result.setToBogus();
|
|
return result;
|
|
}
|
|
if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) {
|
|
result.setToBogus();
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return result;
|
|
}
|
|
|
|
// Note: FIELDS_HMS as maxFields is an ICU extension. RFC822 specification
|
|
// defines exactly 4 digits for the offset field in HHss format.
|
|
return formatOffsetWithAsciiDigits(offset, 0, FIELDS_HM, FIELDS_HMS, result);
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatOffsetISO8601(int32_t offset, UnicodeString& result, UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
result.setToBogus();
|
|
return result;
|
|
}
|
|
if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) {
|
|
result.setToBogus();
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return result;
|
|
}
|
|
|
|
if (offset == 0) {
|
|
result.setTo(ISO8601_UTC);
|
|
return result;
|
|
}
|
|
return formatOffsetWithAsciiDigits(offset, ISO8601_SEP, FIELDS_HM, FIELDS_HMS, result);
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatOffsetLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
result.setToBogus();
|
|
return result;
|
|
}
|
|
if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) {
|
|
result.setToBogus();
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return result;
|
|
}
|
|
|
|
if (offset == 0) {
|
|
result.setTo(fGMTZeroFormat);
|
|
return result;
|
|
}
|
|
|
|
UBool positive = TRUE;
|
|
if (offset < 0) {
|
|
offset = -offset;
|
|
positive = FALSE;
|
|
}
|
|
|
|
int32_t offsetH = offset / MILLIS_PER_HOUR;
|
|
offset = offset % MILLIS_PER_HOUR;
|
|
int32_t offsetM = offset / MILLIS_PER_MINUTE;
|
|
offset = offset % MILLIS_PER_MINUTE;
|
|
int32_t offsetS = offset / MILLIS_PER_SECOND;
|
|
|
|
U_ASSERT(offsetH <= MAX_OFFSET_HOUR && offsetM <= MAX_OFFSET_MINUTE && offsetS <= MAX_OFFSET_SECOND);
|
|
|
|
const UVector* offsetPatternItems = NULL;
|
|
if (positive) {
|
|
offsetPatternItems = (offsetS == 0) ?
|
|
fGMTOffsetPatternItems[UTZFMT_PAT_POSITIVE_HM] :
|
|
fGMTOffsetPatternItems[UTZFMT_PAT_POSITIVE_HMS];
|
|
} else {
|
|
offsetPatternItems = (offsetS == 0) ?
|
|
fGMTOffsetPatternItems[UTZFMT_PAT_NEGATIVE_HM] :
|
|
fGMTOffsetPatternItems[UTZFMT_PAT_NEGATIVE_HMS];
|
|
}
|
|
|
|
U_ASSERT(offsetPatternItems != NULL);
|
|
|
|
// Building the GMT format string
|
|
result.setTo(fGMTPatternPrefix);
|
|
|
|
for (int32_t i = 0; i < offsetPatternItems->size(); i++) {
|
|
const GMTOffsetField* item = (GMTOffsetField*)offsetPatternItems->elementAt(i);
|
|
GMTOffsetField::FieldType type = item->getType();
|
|
|
|
switch (type) {
|
|
case GMTOffsetField::TEXT:
|
|
result.append(item->getPatternText(), -1);
|
|
break;
|
|
|
|
case GMTOffsetField::HOUR:
|
|
appendOffsetDigits(result, offsetH, item->getWidth());
|
|
break;
|
|
|
|
case GMTOffsetField::MINUTE:
|
|
appendOffsetDigits(result, offsetM, item->getWidth());
|
|
break;
|
|
|
|
case GMTOffsetField::SECOND:
|
|
appendOffsetDigits(result, offsetS, item->getWidth());
|
|
break;
|
|
}
|
|
}
|
|
|
|
result.append(fGMTPatternSuffix);
|
|
return result;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetRFC822(const UnicodeString& text, ParsePosition& pos) const {
|
|
int32_t start = pos.getIndex();
|
|
if (start >= text.length()) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
int32_t sign = 1;
|
|
UChar signChar = text.charAt(start);
|
|
if (signChar == PLUS) {
|
|
sign = 1;
|
|
} else if (signChar == MINUS) {
|
|
sign = -1;
|
|
} else {
|
|
// Not an RFC822 offset string
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
// Parse digits
|
|
pos.setIndex(start + 1);
|
|
int32_t offset = parseAbuttingAsciiOffsetFields(text, pos, FIELDS_H, FIELDS_HMS, false);
|
|
|
|
if (pos.getErrorIndex() != -1) {
|
|
pos.setIndex(start); // reset
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
return sign * offset;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos) const {
|
|
return parseOffsetISO8601(text, pos, FALSE);
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const {
|
|
return parseOffsetLocalizedGMT(text, pos, NULL);
|
|
}
|
|
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// Private zone offset format/parse implementation
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos, UBool extendedOnly, UBool* hasDigitOffset /* = NULL */) const {
|
|
if (hasDigitOffset) {
|
|
*hasDigitOffset = FALSE;
|
|
}
|
|
int32_t start = pos.getIndex();
|
|
if (start >= text.length()) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
UChar firstChar = text.charAt(start);
|
|
if (firstChar == ISO8601_UTC || firstChar == (UChar)(ISO8601_UTC + 0x20)) {
|
|
// "Z" (or "z") - indicates UTC
|
|
pos.setIndex(start + 1);
|
|
return 0;
|
|
}
|
|
|
|
int32_t sign = 1;
|
|
if (firstChar == PLUS) {
|
|
sign = 1;
|
|
} else if (firstChar == MINUS) {
|
|
sign = -1;
|
|
} else {
|
|
// Not an ISO 8601 offset string
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
ParsePosition posOffset(start + 1);
|
|
int32_t offset = parseAsciiOffsetFields(text, posOffset, ISO8601_SEP, FIELDS_H, FIELDS_HMS, FALSE);
|
|
if (posOffset.getErrorIndex() == -1 && !extendedOnly && (posOffset.getIndex() - start <= 3)) {
|
|
// If the text is successfully parsed as extended format with the options above, it can be also parsed
|
|
// as basic format. For example, "0230" can be parsed as offset 2:00 (only first digits are valid for
|
|
// extended format), but it can be parsed as offset 2:30 with basic format. We use longer result.
|
|
ParsePosition posBasic(start + 1);
|
|
int32_t tmpOffset = parseAbuttingAsciiOffsetFields(text, posBasic, FIELDS_H, FIELDS_HMS, FALSE);
|
|
if (posBasic.getErrorIndex() == -1 && posBasic.getIndex() > posOffset.getIndex()) {
|
|
offset = tmpOffset;
|
|
posOffset.setIndex(posBasic.getIndex());
|
|
}
|
|
}
|
|
|
|
if (posOffset.getErrorIndex() != -1) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
pos.setIndex(posOffset.getIndex());
|
|
if (hasDigitOffset) {
|
|
*hasDigitOffset = TRUE;
|
|
}
|
|
return sign * offset;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos, UBool* hasDigitOffset) const {
|
|
int32_t start = pos.getIndex();
|
|
int32_t idx = start;
|
|
UBool parsed = FALSE;
|
|
int32_t offset = 0;
|
|
|
|
if (hasDigitOffset) {
|
|
*hasDigitOffset = FALSE;
|
|
}
|
|
|
|
do {
|
|
// Prefix part
|
|
int32_t len = fGMTPatternPrefix.length();
|
|
if (len > 0 && text.caseCompare(idx, len, fGMTPatternPrefix, 0) != 0) {
|
|
// prefix match failed
|
|
break;
|
|
}
|
|
idx += len;
|
|
|
|
// Offset part
|
|
offset = parseOffsetFields(text, idx, FALSE, len);
|
|
if (len == 0) {
|
|
// offset field match failed
|
|
break;
|
|
}
|
|
idx += len;
|
|
|
|
// Suffix part
|
|
len = fGMTPatternSuffix.length();
|
|
if (len > 0 && text.caseCompare(idx, len, fGMTPatternSuffix, 0) != 0) {
|
|
// no suffix match
|
|
break;
|
|
}
|
|
idx += len;
|
|
parsed = TRUE;
|
|
|
|
} while (false);
|
|
|
|
if (parsed) {
|
|
if (hasDigitOffset) {
|
|
*hasDigitOffset = TRUE;
|
|
}
|
|
pos.setIndex(idx);
|
|
return offset;
|
|
}
|
|
|
|
// Try the default patterns
|
|
int32_t parsedLength = 0;
|
|
offset = parseOffsetDefaultLocalizedGMT(text, start, parsedLength);
|
|
if (parsedLength > 0) {
|
|
if (hasDigitOffset) {
|
|
*hasDigitOffset = TRUE;
|
|
}
|
|
pos.setIndex(start + parsedLength);
|
|
return offset;
|
|
}
|
|
|
|
// Check if this is a GMT zero format
|
|
if (text.caseCompare(start, fGMTZeroFormat.length(), fGMTZeroFormat, 0) == 0) {
|
|
pos.setIndex(start + fGMTZeroFormat.length());
|
|
return 0;
|
|
}
|
|
|
|
// Check if this is a default GMT zero format
|
|
for (int32_t i = 0; ALT_GMT_STRINGS[i][0] != 0; i++) {
|
|
const UChar* defGMTZero = ALT_GMT_STRINGS[i];
|
|
int32_t defGMTZeroLen = u_strlen(defGMTZero);
|
|
if (text.caseCompare(start, defGMTZeroLen, defGMTZero, 0) == 0) {
|
|
pos.setIndex(start + defGMTZeroLen);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Nothing matched
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetFields(const UnicodeString& text, int32_t start, UBool minimumHourWidth, int32_t& parsedLen) const {
|
|
int32_t offset = 0;
|
|
UBool sawVarHourAndAbuttingField = FALSE;
|
|
|
|
parsedLen = 0;
|
|
|
|
for (int32_t patidx = 0; PARSE_GMT_OFFSET_TYPES[patidx] >= 0; patidx++) {
|
|
int32_t gmtPatType = PARSE_GMT_OFFSET_TYPES[patidx];
|
|
int32_t offsetH = 0, offsetM = 0, offsetS = 0;
|
|
int32_t idx = start;
|
|
UVector* items = fGMTOffsetPatternItems[gmtPatType];
|
|
U_ASSERT(items != NULL);
|
|
|
|
UBool failed = FALSE;
|
|
for (int32_t i = 0; i < items->size(); i++) {
|
|
int32_t tmpParsedLen = 0;
|
|
const GMTOffsetField* field = (const GMTOffsetField*)items->elementAt(i);
|
|
GMTOffsetField::FieldType fieldType = field->getType();
|
|
if (fieldType == GMTOffsetField::TEXT) {
|
|
const UChar* patStr = field->getPatternText();
|
|
tmpParsedLen = u_strlen(patStr);
|
|
if (text.caseCompare(idx, tmpParsedLen, patStr, 0) != 0) {
|
|
failed = TRUE;
|
|
break;
|
|
}
|
|
idx += tmpParsedLen;
|
|
} else {
|
|
if (fieldType == GMTOffsetField::HOUR) {
|
|
uint8_t minDigits = 1;
|
|
uint8_t maxDigits = minimumHourWidth ? 1 : 2;
|
|
if (!minimumHourWidth && !sawVarHourAndAbuttingField) {
|
|
if (i + 1 < items->size()) {
|
|
const GMTOffsetField* nextField = (const GMTOffsetField*)items->elementAt(i + 1);
|
|
if (nextField->getType() != GMTOffsetField::TEXT) {
|
|
sawVarHourAndAbuttingField = true;
|
|
}
|
|
}
|
|
}
|
|
offsetH = parseOffsetFieldWithLocalizedDigits(text, idx, minDigits, maxDigits, 0, MAX_OFFSET_HOUR, tmpParsedLen);
|
|
} else if (fieldType == GMTOffsetField::MINUTE) {
|
|
offsetM = parseOffsetFieldWithLocalizedDigits(text, idx, 2, 2, 0, MAX_OFFSET_MINUTE, tmpParsedLen);
|
|
} else if (fieldType == GMTOffsetField::SECOND) {
|
|
offsetS = parseOffsetFieldWithLocalizedDigits(text, idx, 2, 2, 0, MAX_OFFSET_SECOND, tmpParsedLen);
|
|
}
|
|
|
|
if (tmpParsedLen == 0) {
|
|
failed = TRUE;
|
|
break;
|
|
}
|
|
idx += tmpParsedLen;
|
|
}
|
|
}
|
|
if (!failed) {
|
|
int32_t sign = (gmtPatType == UTZFMT_PAT_POSITIVE_HM || gmtPatType == UTZFMT_PAT_POSITIVE_HMS) ? 1 : -1;
|
|
offset = ((((offsetH * 60) + offsetM) * 60) + offsetS) * 1000 * sign;
|
|
parsedLen = idx - start;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (parsedLen == 0 && sawVarHourAndAbuttingField && !minimumHourWidth) {
|
|
// When hour field is variable width and another non-literal pattern
|
|
// field follows, the parse loop above might eat up the digit from
|
|
// the abutting field. For example, with pattern "-Hmm" and input "-100",
|
|
// the hour is parsed as -10 and fails to parse minute field.
|
|
//
|
|
// If this is the case, try parsing the text one more time with the arg
|
|
// minimumHourWidth = true
|
|
//
|
|
// Note: This fallback is not applicable when quitAtHourField is true, because
|
|
// the option is designed for supporting the case like "GMT+5". In this case,
|
|
// we should get better result for parsing hour digits as much as possible.
|
|
|
|
return parseOffsetFields(text, start, true, parsedLen);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseAbuttingOffsetFields(const UnicodeString& text, int32_t start, int32_t& parsedLen) const {
|
|
int32_t digits[MAX_OFFSET_DIGITS];
|
|
int32_t parsed[MAX_OFFSET_DIGITS]; // accumulative offsets
|
|
|
|
// Parse digits into int[]
|
|
int32_t idx = start;
|
|
int32_t len = 0;
|
|
int32_t numDigits = 0;
|
|
for (int32_t i = 0; i < MAX_OFFSET_DIGITS; i++) {
|
|
digits[i] = parseSingleLocalizedDigit(text, idx, len);
|
|
if (digits[i] < 0) {
|
|
break;
|
|
}
|
|
idx += len;
|
|
parsed[i] = idx - start;
|
|
numDigits++;
|
|
}
|
|
|
|
if (numDigits == 0) {
|
|
parsedLen = 0;
|
|
return 0;
|
|
}
|
|
|
|
int32_t offset = 0;
|
|
while (numDigits > 0) {
|
|
int32_t hour = 0;
|
|
int32_t min = 0;
|
|
int32_t sec = 0;
|
|
|
|
U_ASSERT(numDigits > 0 && numDigits <= MAX_OFFSET_DIGITS);
|
|
switch (numDigits) {
|
|
case 1: // H
|
|
hour = digits[0];
|
|
break;
|
|
case 2: // HH
|
|
hour = digits[0] * 10 + digits[1];
|
|
break;
|
|
case 3: // Hmm
|
|
hour = digits[0];
|
|
min = digits[1] * 10 + digits[2];
|
|
break;
|
|
case 4: // HHmm
|
|
hour = digits[0] * 10 + digits[1];
|
|
min = digits[2] * 10 + digits[3];
|
|
break;
|
|
case 5: // Hmmss
|
|
hour = digits[0];
|
|
min = digits[1] * 10 + digits[2];
|
|
sec = digits[3] * 10 + digits[4];
|
|
break;
|
|
case 6: // HHmmss
|
|
hour = digits[0] * 10 + digits[1];
|
|
min = digits[2] * 10 + digits[3];
|
|
sec = digits[4] * 10 + digits[5];
|
|
break;
|
|
}
|
|
if (hour <= MAX_OFFSET_HOUR && min <= MAX_OFFSET_MINUTE && sec <= MAX_OFFSET_SECOND) {
|
|
// found a valid combination
|
|
offset = hour * MILLIS_PER_HOUR + min * MILLIS_PER_MINUTE + sec * MILLIS_PER_SECOND;
|
|
parsedLen = parsed[numDigits - 1];
|
|
break;
|
|
}
|
|
numDigits--;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetDefaultLocalizedGMT(const UnicodeString& text, int start, int32_t& parsedLen) const {
|
|
int32_t idx = start;
|
|
int32_t offset = 0;
|
|
int32_t parsed = 0;
|
|
|
|
do {
|
|
// check global default GMT alternatives
|
|
int32_t gmtLen = 0;
|
|
|
|
for (int32_t i = 0; ALT_GMT_STRINGS[i][0] != 0; i++) {
|
|
const UChar* gmt = ALT_GMT_STRINGS[i];
|
|
int32_t len = u_strlen(gmt);
|
|
if (text.caseCompare(start, len, gmt, 0) == 0) {
|
|
gmtLen = len;
|
|
break;
|
|
}
|
|
}
|
|
if (gmtLen == 0) {
|
|
break;
|
|
}
|
|
idx += gmtLen;
|
|
|
|
// offset needs a sign char and a digit at minimum
|
|
if (idx + 1 >= text.length()) {
|
|
break;
|
|
}
|
|
|
|
// parse sign
|
|
int32_t sign = 1;
|
|
UChar c = text.charAt(idx);
|
|
if (c == PLUS) {
|
|
sign = 1;
|
|
} else if (c == MINUS) {
|
|
sign = -1;
|
|
} else {
|
|
break;
|
|
}
|
|
idx++;
|
|
|
|
// offset part
|
|
// try the default pattern with the separator first
|
|
int32_t lenWithSep = 0;
|
|
int32_t offsetWithSep = parseDefaultOffsetFields(text, idx, DEFAULT_GMT_OFFSET_SEP, lenWithSep);
|
|
if (lenWithSep == text.length() - idx) {
|
|
// maximum match
|
|
offset = offsetWithSep * sign;
|
|
idx += lenWithSep;
|
|
} else {
|
|
// try abutting field pattern
|
|
int32_t lenAbut = 0;
|
|
int32_t offsetAbut = parseAbuttingOffsetFields(text, idx, lenAbut);
|
|
|
|
if (lenWithSep > lenAbut) {
|
|
offset = offsetWithSep * sign;
|
|
idx += lenWithSep;
|
|
} else {
|
|
offset = offsetAbut * sign;
|
|
idx += lenAbut;
|
|
}
|
|
}
|
|
parsed = idx - start;
|
|
} while (false);
|
|
|
|
parsedLen = parsed;
|
|
return offset;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseDefaultOffsetFields(const UnicodeString& text, int32_t start, UChar separator, int32_t& parsedLen) const {
|
|
int32_t max = text.length();
|
|
int32_t idx = start;
|
|
int32_t len = 0;
|
|
int32_t hour = 0, min = 0, sec = 0;
|
|
|
|
parsedLen = 0;
|
|
|
|
do {
|
|
hour = parseOffsetFieldWithLocalizedDigits(text, idx, 1, 2, 0, MAX_OFFSET_HOUR, len);
|
|
if (len == 0) {
|
|
break;
|
|
}
|
|
idx += len;
|
|
|
|
if (idx + 1 < max && text.charAt(idx) == separator) {
|
|
min = parseOffsetFieldWithLocalizedDigits(text, idx + 1, 2, 2, 0, MAX_OFFSET_MINUTE, len);
|
|
if (len == 0) {
|
|
break;
|
|
}
|
|
idx += (1 + len);
|
|
|
|
if (idx + 1 < max && text.charAt(idx) == separator) {
|
|
sec = parseOffsetFieldWithLocalizedDigits(text, idx + 1, 2, 2, 0, MAX_OFFSET_SECOND, len);
|
|
if (len == 0) {
|
|
break;
|
|
}
|
|
idx += (1 + len);
|
|
}
|
|
}
|
|
} while (FALSE);
|
|
|
|
if (idx == start) {
|
|
return 0;
|
|
}
|
|
|
|
parsedLen = idx - start;
|
|
return hour * MILLIS_PER_HOUR + min * MILLIS_PER_MINUTE + sec * MILLIS_PER_SECOND;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseOffsetFieldWithLocalizedDigits(const UnicodeString& text, int32_t start, uint8_t minDigits, uint8_t maxDigits, uint16_t minVal, uint16_t maxVal, int32_t& parsedLen) const {
|
|
parsedLen = 0;
|
|
|
|
int32_t decVal = 0;
|
|
int32_t numDigits = 0;
|
|
int32_t idx = start;
|
|
int32_t digitLen = 0;
|
|
|
|
while (idx < text.length() && numDigits < maxDigits) {
|
|
int32_t digit = parseSingleLocalizedDigit(text, idx, digitLen);
|
|
if (digit < 0) {
|
|
break;
|
|
}
|
|
int32_t tmpVal = decVal * 10 + digit;
|
|
if (tmpVal > maxVal) {
|
|
break;
|
|
}
|
|
decVal = tmpVal;
|
|
numDigits++;
|
|
idx += digitLen;
|
|
}
|
|
|
|
// Note: maxVal is checked in the while loop
|
|
if (numDigits < minDigits || decVal < minVal) {
|
|
decVal = -1;
|
|
numDigits = 0;
|
|
} else {
|
|
parsedLen = idx - start;
|
|
}
|
|
|
|
return decVal;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseSingleLocalizedDigit(const UnicodeString& text, int32_t start, int32_t& len) const {
|
|
int32_t digit = -1;
|
|
len = 0;
|
|
if (start < text.length()) {
|
|
UChar32 cp = text.char32At(start);
|
|
|
|
// First, try digits configured for this instance
|
|
for (int32_t i = 0; i < 10; i++) {
|
|
if (cp == fGMTOffsetDigits[i]) {
|
|
digit = i;
|
|
break;
|
|
}
|
|
}
|
|
// If failed, check if this is a Unicode digit
|
|
if (digit < 0) {
|
|
int32_t tmp = u_charDigitValue(cp);
|
|
digit = (tmp >= 0 && tmp <= 9) ? tmp : -1;
|
|
}
|
|
|
|
if (digit >= 0) {
|
|
int32_t next = text.moveIndex32(start, 1);
|
|
len = next - start;
|
|
}
|
|
}
|
|
return digit;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::formatOffsetWithAsciiDigits(int32_t offset, UChar sep, OffsetFields minFields, OffsetFields maxFields, UnicodeString& result) {
|
|
U_ASSERT(maxFields >= minFields);
|
|
U_ASSERT(offset > -MAX_OFFSET && offset < MAX_OFFSET);
|
|
|
|
UChar sign = PLUS;
|
|
if (offset < 0) {
|
|
sign = MINUS;
|
|
offset = -offset;
|
|
}
|
|
result.setTo(sign);
|
|
|
|
int fields[3];
|
|
fields[0] = offset / MILLIS_PER_HOUR;
|
|
offset = offset % MILLIS_PER_HOUR;
|
|
fields[1] = offset / MILLIS_PER_MINUTE;
|
|
offset = offset % MILLIS_PER_MINUTE;
|
|
fields[2] = offset / MILLIS_PER_SECOND;
|
|
|
|
U_ASSERT(fields[0] >= 0 && fields[0] <= MAX_OFFSET_HOUR);
|
|
U_ASSERT(fields[1] >= 0 && fields[1] <= MAX_OFFSET_MINUTE);
|
|
U_ASSERT(fields[2] >= 0 && fields[2] <= MAX_OFFSET_SECOND);
|
|
|
|
int32_t lastIdx = maxFields;
|
|
while (lastIdx > minFields) {
|
|
if (fields[lastIdx] != 0) {
|
|
break;
|
|
}
|
|
lastIdx--;
|
|
}
|
|
|
|
for (int32_t idx = 0; idx <= lastIdx; idx++) {
|
|
if (sep && idx != 0) {
|
|
result.append(sep);
|
|
}
|
|
result.append((UChar)(0x0030 + fields[idx]/10));
|
|
result.append((UChar)(0x0030 + fields[idx]%10));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseAbuttingAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth) {
|
|
int32_t start = pos.getIndex();
|
|
|
|
int32_t minDigits = 2 * (minFields + 1) - (fixedHourWidth ? 0 : 1);
|
|
int32_t maxDigits = 2 * (maxFields + 1);
|
|
|
|
U_ASSERT(maxDigits <= MAX_OFFSET_DIGITS);
|
|
|
|
int32_t digits[MAX_OFFSET_DIGITS] = {};
|
|
int32_t numDigits = 0;
|
|
int32_t idx = start;
|
|
while (numDigits < maxDigits && idx < text.length()) {
|
|
UChar uch = text.charAt(idx);
|
|
int32_t digit = DIGIT_VAL(uch);
|
|
if (digit < 0) {
|
|
break;
|
|
}
|
|
digits[numDigits] = digit;
|
|
numDigits++;
|
|
idx++;
|
|
}
|
|
|
|
if (fixedHourWidth && (numDigits & 1)) {
|
|
// Fixed digits, so the number of digits must be even number. Truncating.
|
|
numDigits--;
|
|
}
|
|
|
|
if (numDigits < minDigits) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
int32_t hour = 0, min = 0, sec = 0;
|
|
UBool bParsed = FALSE;
|
|
while (numDigits >= minDigits) {
|
|
switch (numDigits) {
|
|
case 1: //H
|
|
hour = digits[0];
|
|
break;
|
|
case 2: //HH
|
|
hour = digits[0] * 10 + digits[1];
|
|
break;
|
|
case 3: //Hmm
|
|
hour = digits[0];
|
|
min = digits[1] * 10 + digits[2];
|
|
break;
|
|
case 4: //HHmm
|
|
hour = digits[0] * 10 + digits[1];
|
|
min = digits[2] * 10 + digits[3];
|
|
break;
|
|
case 5: //Hmmss
|
|
hour = digits[0];
|
|
min = digits[1] * 10 + digits[2];
|
|
sec = digits[3] * 10 + digits[4];
|
|
break;
|
|
case 6: //HHmmss
|
|
hour = digits[0] * 10 + digits[1];
|
|
min = digits[2] * 10 + digits[3];
|
|
sec = digits[4] * 10 + digits[5];
|
|
break;
|
|
}
|
|
|
|
if (hour <= MAX_OFFSET_HOUR && min <= MAX_OFFSET_MINUTE && sec <= MAX_OFFSET_SECOND) {
|
|
// Successfully parsed
|
|
bParsed = true;
|
|
break;
|
|
}
|
|
|
|
// Truncating
|
|
numDigits -= (fixedHourWidth ? 2 : 1);
|
|
hour = min = sec = 0;
|
|
}
|
|
|
|
if (!bParsed) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
pos.setIndex(start + numDigits);
|
|
return ((((hour * 60) + min) * 60) + sec) * 1000;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneFormat::parseAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, UChar sep, OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth) {
|
|
int32_t start = pos.getIndex();
|
|
int32_t fieldVal[] = {0, 0, 0};
|
|
int32_t fieldLen[] = {0, -1, -1};
|
|
for (int32_t idx = start, fieldIdx = 0; idx < text.length() && fieldIdx <= maxFields; idx++) {
|
|
UChar c = text.charAt(idx);
|
|
if (c == sep) {
|
|
if (fieldLen[fieldIdx] < 0) {
|
|
// next field - expected
|
|
fieldLen[fieldIdx] = 0;
|
|
} else if (fieldIdx == 0 && !fixedHourWidth) {
|
|
// 1 digit hour, move to next field
|
|
fieldIdx++;
|
|
fieldLen[fieldIdx] = 0;
|
|
} else {
|
|
// otherwise, premature field
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
int32_t digit = DIGIT_VAL(c);
|
|
if (digit < 0) {
|
|
// not a digit
|
|
break;
|
|
}
|
|
fieldVal[fieldIdx] = fieldVal[fieldIdx] * 10 + digit;
|
|
fieldLen[fieldIdx]++;
|
|
if (fieldLen[fieldIdx] >= 2) {
|
|
// parsed 2 digits, move to next field
|
|
fieldIdx++;
|
|
}
|
|
}
|
|
|
|
int32_t offset = 0;
|
|
int32_t parsedLen = 0;
|
|
int32_t parsedFields = -1;
|
|
do {
|
|
// hour
|
|
if (fieldLen[0] == 0 || (fieldLen[0] == 1 && fixedHourWidth)) {
|
|
break;
|
|
}
|
|
if (fieldVal[0] > MAX_OFFSET_HOUR) {
|
|
if (fixedHourWidth) {
|
|
break;
|
|
}
|
|
offset = (fieldVal[0] / 10) * MILLIS_PER_HOUR;
|
|
parsedFields = FIELDS_H;
|
|
parsedLen = 1;
|
|
break;
|
|
}
|
|
offset = fieldVal[0] * MILLIS_PER_HOUR;
|
|
parsedLen = fieldLen[0];
|
|
parsedFields = FIELDS_H;
|
|
|
|
// minute
|
|
if (fieldLen[1] != 2 || fieldVal[1] > MAX_OFFSET_MINUTE) {
|
|
break;
|
|
}
|
|
offset += fieldVal[1] * MILLIS_PER_MINUTE;
|
|
parsedLen += (1 + fieldLen[1]);
|
|
parsedFields = FIELDS_HM;
|
|
|
|
// second
|
|
if (fieldLen[2] != 2 || fieldVal[2] > MAX_OFFSET_SECOND) {
|
|
break;
|
|
}
|
|
offset += fieldVal[2] * MILLIS_PER_SECOND;
|
|
parsedLen += (1 + fieldLen[2]);
|
|
parsedFields = FIELDS_HMS;
|
|
} while (false);
|
|
|
|
if (parsedFields < minFields) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
pos.setIndex(start + parsedLen);
|
|
return offset;
|
|
}
|
|
|
|
void
|
|
TimeZoneFormat::appendOffsetDigits(UnicodeString& buf, int32_t n, uint8_t minDigits) const {
|
|
U_ASSERT(n >= 0 && n < 60);
|
|
int32_t numDigits = n >= 10 ? 2 : 1;
|
|
for (int32_t i = 0; i < minDigits - numDigits; i++) {
|
|
buf.append(fGMTOffsetDigits[0]);
|
|
}
|
|
if (numDigits == 2) {
|
|
buf.append(fGMTOffsetDigits[n / 10]);
|
|
}
|
|
buf.append(fGMTOffsetDigits[n % 10]);
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// Private misc
|
|
void
|
|
TimeZoneFormat::initGMTPattern(const UnicodeString& gmtPattern, UErrorCode& status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
// This implementation not perfect, but sufficient practically.
|
|
int32_t idx = gmtPattern.indexOf(ARG0, ARG0_LEN, 0);
|
|
if (idx < 0) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return;
|
|
}
|
|
fGMTPattern.setTo(gmtPattern);
|
|
unquote(gmtPattern.tempSubString(0, idx), fGMTPatternPrefix);
|
|
unquote(gmtPattern.tempSubString(idx + ARG0_LEN), fGMTPatternSuffix);
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::unquote(const UnicodeString& pattern, UnicodeString& result) {
|
|
if (pattern.indexOf(SINGLEQUOTE) < 0) {
|
|
result.setTo(pattern);
|
|
return result;
|
|
}
|
|
result.remove();
|
|
UBool isPrevQuote = FALSE;
|
|
UBool inQuote = FALSE;
|
|
for (int32_t i = 0; i < pattern.length(); i++) {
|
|
UChar c = pattern.charAt(i);
|
|
if (c == SINGLEQUOTE) {
|
|
if (isPrevQuote) {
|
|
result.append(c);
|
|
isPrevQuote = FALSE;
|
|
} else {
|
|
isPrevQuote = TRUE;
|
|
}
|
|
inQuote = !inQuote;
|
|
} else {
|
|
isPrevQuote = FALSE;
|
|
result.append(c);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
UVector*
|
|
TimeZoneFormat::parseOffsetPattern(const UnicodeString& pattern, OffsetFields required, UErrorCode& status) {
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
UVector* result = new UVector(deleteGMTOffsetField, NULL, status);
|
|
if (result == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
int32_t checkBits = 0;
|
|
UBool isPrevQuote = FALSE;
|
|
UBool inQuote = FALSE;
|
|
UnicodeString text;
|
|
GMTOffsetField::FieldType itemType = GMTOffsetField::TEXT;
|
|
int32_t itemLength = 1;
|
|
|
|
for (int32_t i = 0; i < pattern.length(); i++) {
|
|
UChar ch = pattern.charAt(i);
|
|
if (ch == SINGLEQUOTE) {
|
|
if (isPrevQuote) {
|
|
text.append(SINGLEQUOTE);
|
|
isPrevQuote = FALSE;
|
|
} else {
|
|
isPrevQuote = TRUE;
|
|
if (itemType != GMTOffsetField::TEXT) {
|
|
if (GMTOffsetField::isValid(itemType, itemLength)) {
|
|
GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, (uint8_t)itemLength, status);
|
|
result->addElement(fld, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
break;
|
|
}
|
|
itemType = GMTOffsetField::TEXT;
|
|
}
|
|
}
|
|
inQuote = !inQuote;
|
|
} else {
|
|
isPrevQuote = FALSE;
|
|
if (inQuote) {
|
|
text.append(ch);
|
|
} else {
|
|
GMTOffsetField::FieldType tmpType = GMTOffsetField::getTypeByLetter(ch);
|
|
if (tmpType != GMTOffsetField::TEXT) {
|
|
// an offset time pattern character
|
|
if (tmpType == itemType) {
|
|
itemLength++;
|
|
} else {
|
|
if (itemType == GMTOffsetField::TEXT) {
|
|
if (text.length() > 0) {
|
|
GMTOffsetField* textfld = GMTOffsetField::createText(text, status);
|
|
result->addElement(textfld, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
text.remove();
|
|
}
|
|
} else {
|
|
if (GMTOffsetField::isValid(itemType, itemLength)) {
|
|
GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status);
|
|
result->addElement(fld, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
itemType = tmpType;
|
|
itemLength = 1;
|
|
checkBits |= tmpType;
|
|
}
|
|
} else {
|
|
// a string literal
|
|
if (itemType != GMTOffsetField::TEXT) {
|
|
if (GMTOffsetField::isValid(itemType, itemLength)) {
|
|
GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status);
|
|
result->addElement(fld, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
break;
|
|
}
|
|
itemType = GMTOffsetField::TEXT;
|
|
}
|
|
text.append(ch);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// handle last item
|
|
if (U_SUCCESS(status)) {
|
|
if (itemType == GMTOffsetField::TEXT) {
|
|
if (text.length() > 0) {
|
|
GMTOffsetField* tfld = GMTOffsetField::createText(text, status);
|
|
result->addElement(tfld, status);
|
|
}
|
|
} else {
|
|
if (GMTOffsetField::isValid(itemType, itemLength)) {
|
|
GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status);
|
|
result->addElement(fld, status);
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
}
|
|
}
|
|
|
|
// Check all required fields are set
|
|
if (U_SUCCESS(status)) {
|
|
int32_t reqBits = 0;
|
|
switch (required) {
|
|
case FIELDS_H:
|
|
reqBits = GMTOffsetField::HOUR;
|
|
break;
|
|
case FIELDS_HM:
|
|
reqBits = GMTOffsetField::HOUR | GMTOffsetField::MINUTE;
|
|
break;
|
|
case FIELDS_HMS:
|
|
reqBits = GMTOffsetField::HOUR | GMTOffsetField::MINUTE | GMTOffsetField::SECOND;
|
|
break;
|
|
}
|
|
if (checkBits == reqBits) {
|
|
// all required fields are set, no extra fields
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
|
|
// error
|
|
delete result;
|
|
return NULL;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::expandOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result) {
|
|
U_ASSERT(u_strlen(DEFAULT_GMT_OFFSET_MINUTE_PATTERN) == 2);
|
|
|
|
int32_t idx_mm = offsetHM.indexOf(DEFAULT_GMT_OFFSET_MINUTE_PATTERN, 2, 0);
|
|
if (idx_mm < 0) {
|
|
// we cannot do anything with this...
|
|
result.setTo(offsetHM);
|
|
result.append(DEFAULT_GMT_OFFSET_SEP);
|
|
result.append(DEFAULT_GMT_OFFSET_SECOND_PATTERN, -1);
|
|
return result;
|
|
}
|
|
|
|
UnicodeString sep;
|
|
int32_t idx_H = offsetHM.tempSubString(0, idx_mm).lastIndexOf(0x0048 /* H */);
|
|
if (idx_H >= 0) {
|
|
sep = offsetHM.tempSubString(idx_H + 1, idx_mm - (idx_H + 1));
|
|
}
|
|
result.setTo(offsetHM.tempSubString(0, idx_mm + 2));
|
|
result.append(sep);
|
|
result.append(DEFAULT_GMT_OFFSET_SECOND_PATTERN, -1);
|
|
result.append(offsetHM.tempSubString(idx_mm + 2));
|
|
return result;
|
|
}
|
|
|
|
void
|
|
TimeZoneFormat::initGMTOffsetPatterns(UErrorCode& status) {
|
|
for (int32_t type = 0; type <= UTZFMT_PAT_NEGATIVE_HMS; type++) {
|
|
switch (type) {
|
|
case UTZFMT_PAT_POSITIVE_HM:
|
|
case UTZFMT_PAT_NEGATIVE_HM:
|
|
fGMTOffsetPatternItems[type] = parseOffsetPattern(fGMTOffsetPatterns[type], FIELDS_HM, status);
|
|
break;
|
|
case UTZFMT_PAT_POSITIVE_HMS:
|
|
case UTZFMT_PAT_NEGATIVE_HMS:
|
|
fGMTOffsetPatternItems[type] = parseOffsetPattern(fGMTOffsetPatterns[type], FIELDS_HMS, status);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
UBool
|
|
TimeZoneFormat::toCodePoints(const UnicodeString& str, UChar32* codeArray, int32_t size) {
|
|
int32_t count = str.countChar32();
|
|
if (count != size) {
|
|
return FALSE;
|
|
}
|
|
|
|
for (int32_t idx = 0, start = 0; idx < size; idx++) {
|
|
codeArray[idx] = str.char32At(start);
|
|
start = str.moveIndex32(start, 1);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
TimeZone*
|
|
TimeZoneFormat::createTimeZoneForOffset(int32_t offset) const {
|
|
if (offset == 0) {
|
|
// when offset is 0, we should use "Etc/GMT"
|
|
return TimeZone::createTimeZone(UnicodeString(TZID_GMT));
|
|
}
|
|
return ZoneMeta::createCustomTimeZone(offset);
|
|
}
|
|
|
|
UTimeZoneFormatTimeType
|
|
TimeZoneFormat::getTimeType(UTimeZoneNameType nameType) {
|
|
switch (nameType) {
|
|
case UTZNM_LONG_STANDARD:
|
|
case UTZNM_SHORT_STANDARD:
|
|
return UTZFMT_TIME_TYPE_STANDARD;
|
|
|
|
case UTZNM_LONG_DAYLIGHT:
|
|
case UTZNM_SHORT_DAYLIGHT:
|
|
return UTZFMT_TIME_TYPE_DAYLIGHT;
|
|
|
|
default:
|
|
U_ASSERT(FALSE);
|
|
}
|
|
return UTZFMT_TIME_TYPE_UNKNOWN;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneFormat::getTimeZoneID(const TimeZoneNames::MatchInfoCollection* matches, int32_t idx, UnicodeString& tzID) const {
|
|
if (!matches->getTimeZoneIDAt(idx, tzID)) {
|
|
UnicodeString mzID;
|
|
if (matches->getMetaZoneIDAt(idx, mzID)) {
|
|
fTimeZoneNames->getReferenceZoneID(mzID, fTargetRegion, tzID);
|
|
}
|
|
}
|
|
return tzID;
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif
|