Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 310 insertions, 0 deletions

diff --git a/intl/icu/source/i18n/dtptngen_impl.h b/intl/icu/source/i18n/dtptngen_impl.h
new file mode 100644
index 0000000000..74fe925b2f
--- /dev/null
+++ b/intl/icu/source/i18n/dtptngen_impl.h
@@ -0,0 +1,310 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+* Copyright (C) 2007-2016, International Business Machines Corporation and
+* others. All Rights Reserved.
+*******************************************************************************
+*
+* File DTPTNGEN.H
+*
+*******************************************************************************
+*/
+
+#ifndef __DTPTNGEN_IMPL_H__
+#define __DTPTNGEN_IMPL_H__
+
+#include "unicode/udatpg.h"
+
+#include "unicode/strenum.h"
+#include "unicode/unistr.h"
+#include "uvector.h"
+
+// TODO(claireho): Split off Builder class.
+// TODO(claireho): If splitting off Builder class: As subclass or independent?
+
+#define MAX_PATTERN_ENTRIES 52
+#define MAX_CLDR_FIELD_LEN  60
+#define MAX_DT_TOKEN        50
+#define MAX_RESOURCE_FIELD  12
+#define MAX_AVAILABLE_FORMATS  12
+#define NONE          0
+#define EXTRA_FIELD   0x10000
+#define MISSING_FIELD  0x1000
+#define MAX_STRING_ENUMERATION  200
+#define SINGLE_QUOTE      ((char16_t)0x0027)
+#define FORWARDSLASH      ((char16_t)0x002F)
+#define BACKSLASH         ((char16_t)0x005C)
+#define SPACE             ((char16_t)0x0020)
+#define QUOTATION_MARK    ((char16_t)0x0022)
+#define ASTERISK          ((char16_t)0x002A)
+#define PLUSSITN          ((char16_t)0x002B)
+#define COMMA             ((char16_t)0x002C)
+#define HYPHEN            ((char16_t)0x002D)
+#define DOT               ((char16_t)0x002E)
+#define COLON             ((char16_t)0x003A)
+#define CAP_A             ((char16_t)0x0041)
+#define CAP_B             ((char16_t)0x0042)
+#define CAP_C             ((char16_t)0x0043)
+#define CAP_D             ((char16_t)0x0044)
+#define CAP_E             ((char16_t)0x0045)
+#define CAP_F             ((char16_t)0x0046)
+#define CAP_G             ((char16_t)0x0047)
+#define CAP_H             ((char16_t)0x0048)
+#define CAP_J             ((char16_t)0x004A)
+#define CAP_K             ((char16_t)0x004B)
+#define CAP_L             ((char16_t)0x004C)
+#define CAP_M             ((char16_t)0x004D)
+#define CAP_O             ((char16_t)0x004F)
+#define CAP_Q             ((char16_t)0x0051)
+#define CAP_S             ((char16_t)0x0053)
+#define CAP_T             ((char16_t)0x0054)
+#define CAP_U             ((char16_t)0x0055)
+#define CAP_V             ((char16_t)0x0056)
+#define CAP_W             ((char16_t)0x0057)
+#define CAP_X             ((char16_t)0x0058)
+#define CAP_Y             ((char16_t)0x0059)
+#define CAP_Z             ((char16_t)0x005A)
+#define LOWLINE           ((char16_t)0x005F)
+#define LOW_A             ((char16_t)0x0061)
+#define LOW_B             ((char16_t)0x0062)
+#define LOW_C             ((char16_t)0x0063)
+#define LOW_D             ((char16_t)0x0064)
+#define LOW_E             ((char16_t)0x0065)
+#define LOW_F             ((char16_t)0x0066)
+#define LOW_G             ((char16_t)0x0067)
+#define LOW_H             ((char16_t)0x0068)
+#define LOW_I             ((char16_t)0x0069)
+#define LOW_J             ((char16_t)0x006A)
+#define LOW_K             ((char16_t)0x006B)
+#define LOW_L             ((char16_t)0x006C)
+#define LOW_M             ((char16_t)0x006D)
+#define LOW_N             ((char16_t)0x006E)
+#define LOW_O             ((char16_t)0x006F)
+#define LOW_P             ((char16_t)0x0070)
+#define LOW_Q             ((char16_t)0x0071)
+#define LOW_R             ((char16_t)0x0072)
+#define LOW_S             ((char16_t)0x0073)
+#define LOW_T             ((char16_t)0x0074)
+#define LOW_U             ((char16_t)0x0075)
+#define LOW_V             ((char16_t)0x0076)
+#define LOW_W             ((char16_t)0x0077)
+#define LOW_X             ((char16_t)0x0078)
+#define LOW_Y             ((char16_t)0x0079)
+#define LOW_Z             ((char16_t)0x007A)
+#define DT_NARROW         -0x101
+#define DT_SHORTER        -0x102
+#define DT_SHORT          -0x103
+#define DT_LONG           -0x104
+#define DT_NUMERIC         0x100
+#define DT_DELTA           0x10
+
+U_NAMESPACE_BEGIN
+
+const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
+const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
+
+typedef enum dtStrEnum {
+    DT_BASESKELETON,
+    DT_SKELETON,
+    DT_PATTERN
+}dtStrEnum;
+
+typedef struct dtTypeElem {
+    char16_t               patternChar;
+    UDateTimePatternField  field;
+    int16_t                type;
+    int16_t                minLen;
+    int16_t                weight;
+} dtTypeElem;
+
+// A compact storage mechanism for skeleton field strings.  Several dozen of these will be created
+// for a typical DateTimePatternGenerator instance.
+class SkeletonFields : public UMemory {
+public:
+    SkeletonFields();
+    void clear();
+    void copyFrom(const SkeletonFields& other);
+    void clearField(int32_t field);
+    char16_t getFieldChar(int32_t field) const;
+    int32_t getFieldLength(int32_t field) const;
+    void populate(int32_t field, const UnicodeString& value);
+    void populate(int32_t field, char16_t repeatChar, int32_t repeatCount);
+    UBool isFieldEmpty(int32_t field) const;
+    UnicodeString& appendTo(UnicodeString& string) const;
+    UnicodeString& appendFieldTo(int32_t field, UnicodeString& string) const;
+    char16_t getFirstChar() const;
+    inline bool operator==(const SkeletonFields& other) const;
+    inline bool operator!=(const SkeletonFields& other) const;
+
+private:
+    int8_t chars[UDATPG_FIELD_COUNT];
+    int8_t lengths[UDATPG_FIELD_COUNT];
+};
+
+inline bool SkeletonFields::operator==(const SkeletonFields& other) const {
+    return (uprv_memcmp(chars, other.chars, sizeof(chars)) == 0
+        && uprv_memcmp(lengths, other.lengths, sizeof(lengths)) == 0);
+}
+
+inline bool SkeletonFields::operator!=(const SkeletonFields& other) const {
+    return (! operator==(other));
+}
+
+class PtnSkeleton : public UMemory {
+public:
+    int32_t type[UDATPG_FIELD_COUNT];
+    SkeletonFields original;
+    SkeletonFields baseOriginal;
+    UBool addedDefaultDayPeriod;
+
+    PtnSkeleton();
+    PtnSkeleton(const PtnSkeleton& other);
+    void copyFrom(const PtnSkeleton& other);
+    void clear();
+    UBool equals(const PtnSkeleton& other) const;
+    UnicodeString getSkeleton() const;
+    UnicodeString getBaseSkeleton() const;
+    char16_t getFirstChar() const;
+
+    // TODO: Why is this virtual, as well as the other destructors in this file? We don't want
+    // vtables when we don't use class objects polymorphically.
+    virtual ~PtnSkeleton();
+};
+
+class PtnElem : public UMemory {
+public:
+    UnicodeString basePattern;
+    LocalPointer<PtnSkeleton> skeleton;
+    UnicodeString pattern;
+    UBool         skeletonWasSpecified; // if specified in availableFormats, not derived
+    LocalPointer<PtnElem> next;
+
+    PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
+    virtual ~PtnElem();
+};
+
+class FormatParser : public UMemory {
+public:
+    UnicodeString items[MAX_DT_TOKEN];
+    int32_t itemNumber;
+
+    FormatParser();
+    virtual ~FormatParser();
+    void set(const UnicodeString& patternString);
+    void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
+    UBool isPatternSeparator(const UnicodeString& field) const;
+    static UBool isQuoteLiteral(const UnicodeString& s);
+    static int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, true); }
+    static int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
+
+private:
+   typedef enum TokenStatus {
+       START,
+       ADD_TOKEN,
+       SYNTAX_ERROR,
+       DONE
+   } TokenStatus;
+
+   TokenStatus status;
+   virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
+};
+
+class DistanceInfo : public UMemory {
+public:
+    int32_t missingFieldMask;
+    int32_t extraFieldMask;
+
+    DistanceInfo() {}
+    virtual ~DistanceInfo();
+    void clear() { missingFieldMask = extraFieldMask = 0; }
+    void setTo(const DistanceInfo& other);
+    void addMissing(int32_t field) { missingFieldMask |= (1<<field); }
+    void addExtra(int32_t field) { extraFieldMask |= (1<<field); }
+};
+
+class DateTimeMatcher: public UMemory {
+public:
+    PtnSkeleton skeleton;
+
+    void getBasePattern(UnicodeString& basePattern);
+    UnicodeString getPattern();
+    void set(const UnicodeString& pattern, FormatParser* fp);
+    void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
+    void copyFrom(const PtnSkeleton& skeleton);
+    void copyFrom();
+    PtnSkeleton* getSkeletonPtr();
+    UBool equals(const DateTimeMatcher* other) const;
+    int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo) const;
+    DateTimeMatcher();
+    DateTimeMatcher(const DateTimeMatcher& other);
+    DateTimeMatcher& operator=(const DateTimeMatcher& other);
+    virtual ~DateTimeMatcher();
+    int32_t getFieldMask() const;
+};
+
+class PatternMap : public UMemory {
+public:
+    PtnElem *boot[MAX_PATTERN_ENTRIES];
+    PatternMap();
+    virtual  ~PatternMap();
+    void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
+    const UnicodeString* getPatternFromBasePattern(const UnicodeString& basePattern, UBool& skeletonWasSpecified) const;
+    const UnicodeString* getPatternFromSkeleton(const PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0) const;
+    void copyFrom(const PatternMap& other, UErrorCode& status);
+    PtnElem* getHeader(char16_t baseChar) const;
+    UBool equals(const PatternMap& other) const;
+private:
+    UBool isDupAllowed;
+    PtnElem*  getDuplicateElem(const UnicodeString& basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
+}; // end  PatternMap
+
+class PatternMapIterator : public UMemory {
+public:
+    PatternMapIterator(UErrorCode &status);
+    virtual ~PatternMapIterator();
+    void set(PatternMap& patternMap);
+    PtnSkeleton* getSkeleton() const;
+    UBool hasNext() const;
+    DateTimeMatcher& next();
+private:
+    int32_t bootIndex;
+    PtnElem *nodePtr;
+    LocalPointer<DateTimeMatcher> matcher;
+    PatternMap *patternMap;
+};
+
+class DTSkeletonEnumeration : public StringEnumeration {
+public:
+    DTSkeletonEnumeration(PatternMap& patternMap, dtStrEnum type, UErrorCode& status);
+    virtual ~DTSkeletonEnumeration();
+    static UClassID U_EXPORT2 getStaticClassID();
+    virtual UClassID getDynamicClassID() const override;
+    virtual const UnicodeString* snext(UErrorCode& status) override;
+    virtual void reset(UErrorCode& status) override;
+    virtual int32_t count(UErrorCode& status) const override;
+private:
+    int32_t pos;
+    UBool isCanonicalItem(const UnicodeString& item);
+    LocalPointer<UVector> fSkeletons;
+};
+
+class DTRedundantEnumeration : public StringEnumeration {
+public:
+    DTRedundantEnumeration();
+    virtual ~DTRedundantEnumeration();
+    static UClassID U_EXPORT2 getStaticClassID();
+    virtual UClassID getDynamicClassID() const override;
+    virtual const UnicodeString* snext(UErrorCode& status) override;
+    virtual void reset(UErrorCode& status) override;
+    virtual int32_t count(UErrorCode& status) const override;
+    void add(const UnicodeString &pattern, UErrorCode& status);
+private:
+    int32_t pos;
+    UBool isCanonicalItem(const UnicodeString& item) const;
+    LocalPointer<UVector> fPatterns;
+};
+
+U_NAMESPACE_END
+
+#endif