1170 lines
34 KiB
C++
1170 lines
34 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 2007-2008, 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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* File PLURRULE.CPP
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*
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* Modification History:
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*
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* Date Name Description
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*******************************************************************************
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*/
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#include "unicode/uniset.h"
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#include "unicode/utypes.h"
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#include "unicode/plurrule.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "hash.h"
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#include "ucln_in.h"
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#include "umutex.h"
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#include "plurrule_impl.h"
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#include "putilimp.h"
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#include "ustrfmt.h"
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#if !UCONFIG_NO_FORMATTING
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// gPluralRuleLocaleHash is a global hash table that maps locale name to
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// the pointer of PluralRule. gPluralRuleLocaleHash is built only once and
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// destroried at end of application. We don't need the gPluralRuleLocaleHash
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// when we move plural rules data to resource bundle in ICU4.x release.
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static UMTX pRulesLock = 0;
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static Hashtable *gPluralRuleLocaleHash=NULL;
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U_CDECL_BEGIN
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static void U_CALLCONV
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deletePHashRules(void *obj) {
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delete (RuleChain *)obj;
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}
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static UBool plural_rules_cleanup(void) {
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if (gPluralRuleLocaleHash) {
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delete gPluralRuleLocaleHash;
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gPluralRuleLocaleHash = NULL;
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}
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umtx_destroy(&pRulesLock);
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return TRUE;
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}
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U_CDECL_END
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U_NAMESPACE_BEGIN
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// TODO: Plural rule data - will move to ResourceBundle.
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#define NUMBER_PLURAL_RULES 13
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static const UChar uCharPluralRules[NUMBER_PLURAL_RULES][128] = {
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// other: n/ja,ko,tr,v
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{LOW_O,LOW_T,LOW_H,LOW_E,LOW_R,COLON,SPACE,LOW_N,SLASH,LOW_J,LOW_A,COMMA,LOW_K,LOW_O,COMMA,LOW_T,
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LOW_R,COMMA,LOW_V,LOW_I, 0},
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// one: n is 1/da,de,el,en,eo,es,et,fi,fo,he,hu,it,nb,nl,nn,no,pt,sv
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SLASH,LOW_D,LOW_A,COMMA,LOW_D,
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LOW_E,COMMA,LOW_E,LOW_L,COMMA,LOW_E,LOW_N,COMMA,LOW_E,LOW_O,COMMA,LOW_E,LOW_S,COMMA,LOW_E,LOW_T,
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COMMA,LOW_F,LOW_I,COMMA,LOW_F,LOW_O,COMMA,LOW_H,LOW_E,COMMA,LOW_H,LOW_U,COMMA,LOW_I,LOW_T,COMMA,
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LOW_N,LOW_B,COMMA,LOW_N,LOW_L,COMMA,LOW_N,LOW_N,COMMA,LOW_N,LOW_O,COMMA,LOW_P,LOW_T,COMMA,LOW_S,
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LOW_V, 0},
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// one: n in 0..1/fr,pt_BR
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_N,SPACE,U_ZERO,DOT,DOT,U_ONE,SLASH,LOW_F,
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LOW_R,COMMA,LOW_P,LOW_T,LOWLINE,CAP_B,CAP_R, 0},
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// zero: n is 0; one: n mod 10 is 1 and n mod 100 is not 11/lv
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{LOW_Z,LOW_E,LOW_R,LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ZERO,SEMI_COLON,SPACE,LOW_O,
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LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,LOW_S,SPACE,
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U_ONE,SPACE,LOW_A,LOW_N,LOW_D,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,SPACE,
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LOW_I,LOW_S,SPACE,LOW_N,LOW_O,LOW_T,SPACE,U_ONE,U_ONE,SLASH,LOW_L,LOW_V, 0},
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// one: n is 1; two: n is 2/ga
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_T,LOW_W,
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LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_TWO,SLASH,LOW_G,LOW_A, 0},
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// zero: n is 0; one: n is 1; zero: n mod 100 in 1..19/ro
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{LOW_Z,LOW_E,LOW_R,LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ZERO,SEMI_COLON,SPACE,LOW_O,
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LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_Z,LOW_E,LOW_R,
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LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,SPACE,LOW_I,LOW_N,SPACE,
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U_ONE,DOT,DOT,U_ONE,U_NINE,SLASH,LOW_R,LOW_O, 0},
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// other: n mod 100 in 11..19; one: n mod 10 is 1; few: n mod 10 in 2..9/lt
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{LOW_O,LOW_T,LOW_H,LOW_E,LOW_R,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,
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SPACE,LOW_I,LOW_N,SPACE,U_ONE,U_ONE,DOT,DOT,U_ONE,U_NINE,SEMI_COLON,SPACE,LOW_O,LOW_N,LOW_E,COLON,
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SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,
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SPACE,LOW_F,LOW_E,LOW_W,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,
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LOW_N,SPACE,U_TWO,DOT,DOT,U_NINE,SLASH,LOW_L,LOW_T, 0},
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// one: n mod 10 is 1 and n mod 100 is not 11; few: n mod 10 in 2..4
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// and n mod 100 not in 12..14/hr,ru,sr,uk
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,LOW_S,
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SPACE,U_ONE,SPACE,LOW_A,LOW_N,LOW_D,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,
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SPACE,LOW_I,LOW_S,SPACE,LOW_N,LOW_O,LOW_T,SPACE,U_ONE,U_ONE,SEMI_COLON,SPACE,LOW_F,LOW_E,LOW_W,
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COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,LOW_N,SPACE,U_TWO,DOT,
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DOT,U_FOUR,SPACE,LOW_A,LOW_N,LOW_D,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,
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U_ZERO,U_ZERO,SPACE,LOW_N,LOW_O,LOW_T,SPACE,LOW_I,LOW_N,SPACE,U_ONE,U_TWO,DOT,DOT,U_ONE,U_FOUR,
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SLASH,LOW_H,LOW_R,COMMA,LOW_R,LOW_U,COMMA,LOW_S,LOW_R,COMMA,LOW_U,LOW_K, 0},
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// one: n is 1; few: n in 2..4/cs,sk
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_F,LOW_E,
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LOW_W,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_N,SPACE,U_TWO,DOT,DOT,U_FOUR,SLASH,LOW_C,LOW_S,COMMA,
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LOW_S,LOW_K, 0},
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// one: n is 1; few: n mod 10 in 2..4 and n mod 100 not in 12..14/pl
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_F,LOW_E,
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LOW_W,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,SPACE,LOW_I,LOW_N,SPACE,U_TWO,
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DOT,DOT,U_FOUR,SPACE,LOW_A,LOW_N,LOW_D,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,
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U_ZERO,SPACE,LOW_N,LOW_O,LOW_T,SPACE,LOW_I,LOW_N,SPACE,U_ONE,U_TWO,DOT,DOT,U_ONE,U_FOUR,SLASH,
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LOW_P,LOW_L, 0},
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// one: n mod 100 is 1; two: n mod 100 is 2; few: n mod 100 in 3..4/sl
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{LOW_O,LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,SPACE,LOW_I,
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LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_T,LOW_W,LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,
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SPACE,U_ONE,U_ZERO,U_ZERO,SPACE,LOW_I,LOW_S,SPACE,U_TWO,SEMI_COLON,SPACE,LOW_F,LOW_E,LOW_W,COLON,
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SPACE,LOW_N,SPACE,LOW_M,LOW_O,LOW_D,SPACE,U_ONE,U_ZERO,U_ZERO,SPACE,LOW_I,LOW_N,SPACE,U_THREE,DOT,
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DOT,U_FOUR,SLASH,LOW_S,LOW_L, 0},
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// zero: n is 0; one: n is 1; two: n is 2; few: n is 3..10; many: n in 11..99/ar
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{LOW_Z,LOW_E,LOW_R,LOW_O,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ZERO,SEMI_COLON,SPACE,LOW_O,
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LOW_N,LOW_E,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_ONE,SEMI_COLON,SPACE,LOW_T,LOW_W,LOW_O,
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COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_TWO,SEMI_COLON,SPACE,LOW_F,LOW_E,LOW_W,COLON,SPACE,
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LOW_N,SPACE,LOW_I,LOW_S,SPACE,U_THREE,DOT,DOT,U_ONE,U_ZERO,SEMI_COLON,SPACE,LOW_M,LOW_A,LOW_N,
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LOW_Y,COLON,SPACE,LOW_N,SPACE,LOW_I,LOW_N,SPACE,U_ONE,U_ONE,DOT,DOT,U_NINE,U_NINE,SLASH,LOW_A,
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LOW_R, 0},
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};
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static const UChar PLURAL_KEYWORD_ZERO[] = {LOW_Z,LOW_E,LOW_R,LOW_O, 0};
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static const UChar PLURAL_KEYWORD_ONE[]={LOW_O,LOW_N,LOW_E,0};
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static const UChar PLURAL_KEYWORD_TWO[]={LOW_T,LOW_W,LOW_O,0};
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static const UChar PLURAL_KEYWORD_FEW[]={LOW_F,LOW_E,LOW_W,0};
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static const UChar PLURAL_KEYWORD_MANY[]={LOW_M,LOW_A,LOW_N,LOW_Y,0};
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static const UChar PLURAL_KEYWORD_OTHER[]={LOW_O,LOW_T,LOW_H,LOW_E,LOW_R,0};
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static const UChar PLURAL_DEFAULT_RULE[]={LOW_O,LOW_T,LOW_H,LOW_E,LOW_R,COLON,SPACE,LOW_N,0};
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static const UChar PK_IN[]={LOW_I,LOW_N,0};
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static const UChar PK_NOT[]={LOW_N,LOW_O,LOW_T,0};
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static const UChar PK_IS[]={LOW_I,LOW_S,0};
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static const UChar PK_MOD[]={LOW_M,LOW_O,LOW_D,0};
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static const UChar PK_AND[]={LOW_A,LOW_N,LOW_D,0};
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static const UChar PK_OR[]={LOW_O,LOW_R,0};
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static const UChar PK_VAR_N[]={LOW_N,0};
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(PluralRules)
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(PluralKeywordEnumeration)
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PluralRules::PluralRules(UErrorCode& status)
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:
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fLocaleStringsHash(NULL),
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mRules(NULL),
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mParser(new RuleParser())
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{
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initHashtable(status);
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if (U_SUCCESS(status)) {
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getRuleData(status);
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}
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}
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PluralRules::PluralRules(const PluralRules& other)
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: UObject(other),
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fLocaleStringsHash(NULL),
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mRules(NULL),
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mParser(new RuleParser())
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{
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*this=other;
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}
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PluralRules::~PluralRules() {
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delete mRules;
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delete mParser;
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}
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PluralRules*
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PluralRules::clone() const {
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return new PluralRules(*this);
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}
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PluralRules&
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PluralRules::operator=(const PluralRules& other) {
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if (this != other) {
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fLocaleStringsHash=other.fLocaleStringsHash;
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delete mRules;
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mRules = new RuleChain(*other.mRules);
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delete mParser;
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mParser = new RuleParser();
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}
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return *this;
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}
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PluralRules* U_EXPORT2
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PluralRules::createRules(const UnicodeString& description, UErrorCode& status) {
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RuleChain rules;
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PluralRules *newRules = new PluralRules(status);
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if ( (newRules != NULL)&& U_SUCCESS(status) ) {
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newRules->parseDescription((UnicodeString &)description, rules, status);
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if (U_SUCCESS(status)) {
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newRules->addRules(rules, status);
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}
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}
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if (U_FAILURE(status)) {
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delete newRules;
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return NULL;
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}
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else {
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return newRules;
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}
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}
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PluralRules* U_EXPORT2
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PluralRules::createDefaultRules(UErrorCode& status) {
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return createRules(PLURAL_DEFAULT_RULE, status);
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}
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PluralRules* U_EXPORT2
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PluralRules::forLocale(const Locale& locale, UErrorCode& status) {
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RuleChain *locRules;
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PluralRules *newRules = new PluralRules(status);
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if (U_FAILURE(status)) {
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delete newRules;
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return NULL;
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}
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UnicodeString localeName(locale.getName());
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umtx_lock(&pRulesLock);
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locRules = (RuleChain *) (newRules->fLocaleStringsHash->get(localeName));
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umtx_unlock(&pRulesLock);
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if (locRules == NULL) {
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// Check parent locales.
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char parentLocale[ULOC_FULLNAME_CAPACITY];
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const char *curLocaleName=locale.getName();
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int32_t localeNameLen=0;
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uprv_strcpy(parentLocale, curLocaleName);
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while ((localeNameLen=uloc_getParent(parentLocale, parentLocale, ULOC_FULLNAME_CAPACITY, &status)) > 0) {
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umtx_lock(&pRulesLock);
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locRules = (RuleChain *) (newRules->fLocaleStringsHash->get(localeName));
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umtx_unlock(&pRulesLock);
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if (locRules != NULL) {
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break;
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}
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}
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}
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if (locRules==NULL) {
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return createRules(PLURAL_DEFAULT_RULE, status);
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}
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newRules->addRules(*locRules, status);
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return newRules;
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}
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UnicodeString
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PluralRules::select(int32_t number) const {
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if (mRules == NULL) {
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return PLURAL_DEFAULT_RULE;
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}
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else {
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return mRules->select(number);
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}
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}
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StringEnumeration*
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PluralRules::getKeywords(UErrorCode& status) const {
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if (U_FAILURE(status)) return NULL;
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StringEnumeration* nameEnumerator = new PluralKeywordEnumeration(status);
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return nameEnumerator;
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}
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UBool
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PluralRules::isKeyword(const UnicodeString& keyword) const {
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if ( mRules == NULL) {
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return (UBool)( keyword == PLURAL_DEFAULT_RULE );
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}
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else {
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return mRules->isKeyword(keyword);
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}
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}
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UnicodeString
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PluralRules::getKeywordOther() const {
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return PLURAL_KEYWORD_OTHER;
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}
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UBool
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PluralRules::operator==(const PluralRules& other) const {
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int32_t limit;
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UBool sameList = TRUE;
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const UnicodeString *ptrKeyword;
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UErrorCode status= U_ZERO_ERROR;
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if ( this == &other ) {
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return TRUE;
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}
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StringEnumeration* myKeywordList = getKeywords(status);
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StringEnumeration* otherKeywordList =other.getKeywords(status);
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if (myKeywordList->count(status)!=otherKeywordList->count(status)) {
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sameList = FALSE;
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}
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else {
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myKeywordList->reset(status);
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while (sameList && (ptrKeyword=myKeywordList->snext(status))!=NULL) {
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if (!other.isKeyword(*ptrKeyword)) {
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sameList = FALSE;
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}
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}
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otherKeywordList->reset(status);
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while (sameList && (ptrKeyword=otherKeywordList->snext(status))!=NULL) {
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if (!this->isKeyword(*ptrKeyword)) {
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sameList = FALSE;
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}
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}
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delete myKeywordList;
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delete otherKeywordList;
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if (!sameList) {
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return FALSE;
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}
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}
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if ((limit=this->getRepeatLimit()) != other.getRepeatLimit()) {
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return FALSE;
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}
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UnicodeString myKeyword, otherKeyword;
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for (int32_t i=0; i<limit; ++i) {
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myKeyword = this->select(i);
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otherKeyword = other.select(i);
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if (myKeyword!=otherKeyword) {
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return FALSE;
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}
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}
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return TRUE;
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}
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void
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PluralRules::getRuleData(UErrorCode& status) {
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UnicodeString ruleData;
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UnicodeString localeData;
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UnicodeString localeName;
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int32_t i;
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UChar cSlash = (UChar)0x002F;
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i=0;
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while ( i<NUMBER_PLURAL_RULES && U_SUCCESS(status) ) {
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RuleChain rules;
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UnicodeString pluralRuleData = UnicodeString(uCharPluralRules[i]);
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int32_t slashIndex = pluralRuleData.indexOf(cSlash);
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if ( slashIndex < 0 ) {
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break;
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}
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ruleData=UnicodeString(pluralRuleData, 0, slashIndex);
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localeData=UnicodeString(pluralRuleData, slashIndex+1);
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parseDescription(ruleData, rules, status);
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int32_t curIndex=0;
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while (curIndex < localeData.length() && U_SUCCESS(status)) {
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getNextLocale(localeData, &curIndex, localeName);
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addRules(localeName, rules, TRUE, status);
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}
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i++;
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}
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}
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void
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PluralRules::parseDescription(UnicodeString& data, RuleChain& rules, UErrorCode &status)
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{
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int32_t ruleIndex=0;
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UnicodeString token;
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tokenType type;
|
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tokenType prevType=none;
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RuleChain *ruleChain=NULL;
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AndConstraint *curAndConstraint=NULL;
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OrConstraint *orNode=NULL;
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|
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UnicodeString ruleData = data.toLower();
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while (ruleIndex< ruleData.length()) {
|
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mParser->getNextToken(ruleData, &ruleIndex, token, type, status);
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|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
mParser->checkSyntax(prevType, type, status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
switch (type) {
|
|
case tAnd:
|
|
curAndConstraint = curAndConstraint->add();
|
|
break;
|
|
case tOr:
|
|
orNode=rules.ruleHeader;
|
|
while (orNode->next != NULL) {
|
|
orNode = orNode->next;
|
|
}
|
|
orNode->next= new OrConstraint();
|
|
orNode=orNode->next;
|
|
orNode->next=NULL;
|
|
curAndConstraint = orNode->add();
|
|
break;
|
|
case tIs:
|
|
curAndConstraint->rangeHigh=-1;
|
|
break;
|
|
case tNot:
|
|
curAndConstraint->notIn=TRUE;
|
|
break;
|
|
case tIn:
|
|
curAndConstraint->rangeHigh=PLURAL_RANGE_HIGH;
|
|
break;
|
|
case tNumber:
|
|
if ( (curAndConstraint->op==AndConstraint::MOD)&&
|
|
(curAndConstraint->opNum == -1 ) ) {
|
|
curAndConstraint->opNum=getNumberValue(token);
|
|
}
|
|
else {
|
|
if (curAndConstraint->rangeLow == -1) {
|
|
curAndConstraint->rangeLow=getNumberValue(token);
|
|
}
|
|
else {
|
|
curAndConstraint->rangeHigh=getNumberValue(token);
|
|
}
|
|
}
|
|
break;
|
|
case tMod:
|
|
curAndConstraint->op=AndConstraint::MOD;
|
|
break;
|
|
case tKeyword:
|
|
if (ruleChain==NULL) {
|
|
ruleChain = &rules;
|
|
}
|
|
else {
|
|
while (ruleChain->next!=NULL){
|
|
ruleChain=ruleChain->next;
|
|
}
|
|
ruleChain=ruleChain->next=new RuleChain();
|
|
}
|
|
orNode = ruleChain->ruleHeader = new OrConstraint();
|
|
curAndConstraint = orNode->add();
|
|
ruleChain->keyword = token;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
prevType=type;
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
PluralRules::getNumberValue(const UnicodeString& token) const {
|
|
int32_t i;
|
|
char digits[128];
|
|
|
|
for (i=0; i<token.length() && i<127; ++i) {
|
|
digits[i]=(char)token.charAt(i);
|
|
}
|
|
digits[i]='\0';
|
|
|
|
return((int32_t)atoi(digits));
|
|
}
|
|
|
|
|
|
void
|
|
PluralRules::getNextLocale(const UnicodeString& localeData, int32_t* curIndex, UnicodeString& localeName) {
|
|
int32_t i=*curIndex;
|
|
|
|
localeName.remove();
|
|
while (i< localeData.length()) {
|
|
if ( (localeData.charAt(i)!= SPACE) && (localeData.charAt(i)!= COMMA) ) {
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
while (i< localeData.length()) {
|
|
if ( (localeData.charAt(i)== SPACE) || (localeData.charAt(i)== COMMA) ) {
|
|
break;
|
|
}
|
|
localeName+=localeData.charAt(i++);
|
|
}
|
|
*curIndex=i;
|
|
}
|
|
|
|
|
|
int32_t
|
|
PluralRules::getRepeatLimit() const {
|
|
return mRules->getRepeatLimit();
|
|
}
|
|
|
|
void
|
|
PluralRules::initHashtable(UErrorCode& status) {
|
|
if (fLocaleStringsHash!=NULL) {
|
|
return;
|
|
}
|
|
UBool needsInit;
|
|
UMTX_CHECK(&pRulesLock, (gPluralRuleLocaleHash == NULL), needsInit);/* This is here to prevent race conditions. */
|
|
|
|
if (needsInit) {
|
|
// This static PluralRule hashtable residents in memory until end of application.
|
|
umtx_lock(&pRulesLock);
|
|
if ((gPluralRuleLocaleHash = new Hashtable(TRUE, status))!=NULL) {
|
|
ucln_i18n_registerCleanup(UCLN_I18N_PLURAL_RULE, plural_rules_cleanup);
|
|
gPluralRuleLocaleHash->setValueDeleter(deletePHashRules);
|
|
fLocaleStringsHash = gPluralRuleLocaleHash;
|
|
umtx_unlock(&pRulesLock);
|
|
return;
|
|
}
|
|
umtx_unlock(&pRulesLock);
|
|
}
|
|
else {
|
|
fLocaleStringsHash = gPluralRuleLocaleHash;
|
|
}
|
|
}
|
|
|
|
void
|
|
PluralRules::addRules(RuleChain& rules, UErrorCode& status) {
|
|
addRules(mLocaleName, rules, FALSE, status);
|
|
}
|
|
|
|
void
|
|
PluralRules::addRules(const UnicodeString& localeName, RuleChain& rules, UBool addToHash, UErrorCode& status) {
|
|
RuleChain *newRule = new RuleChain(rules);
|
|
if ( addToHash )
|
|
{
|
|
{
|
|
umtx_lock(&pRulesLock);
|
|
if ( (RuleChain *)fLocaleStringsHash->get(localeName) == NULL ) {
|
|
fLocaleStringsHash->put(localeName, newRule, status);
|
|
umtx_unlock(&pRulesLock);
|
|
}
|
|
else {
|
|
umtx_unlock(&pRulesLock);
|
|
delete newRule;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
this->mRules=newRule;
|
|
}
|
|
newRule->setRepeatLimit();
|
|
}
|
|
|
|
AndConstraint::AndConstraint() {
|
|
op = AndConstraint::NONE;
|
|
opNum=-1;
|
|
rangeLow=-1;
|
|
rangeHigh=-1;
|
|
notIn=FALSE;
|
|
next=NULL;
|
|
}
|
|
|
|
|
|
AndConstraint::AndConstraint(const AndConstraint& other) {
|
|
this->op = other.op;
|
|
this->opNum=other.opNum;
|
|
this->rangeLow=other.rangeLow;
|
|
this->rangeHigh=other.rangeHigh;
|
|
this->notIn=other.notIn;
|
|
if (other.next==NULL) {
|
|
this->next=NULL;
|
|
}
|
|
else {
|
|
this->next = new AndConstraint(*other.next);
|
|
}
|
|
}
|
|
|
|
AndConstraint::~AndConstraint() {
|
|
if (next!=NULL) {
|
|
delete next;
|
|
}
|
|
}
|
|
|
|
|
|
UBool
|
|
AndConstraint::isFulfilled(int32_t number) {
|
|
UBool result=TRUE;
|
|
int32_t value=number;
|
|
|
|
if ( op == MOD ) {
|
|
value = value % opNum;
|
|
}
|
|
if ( rangeHigh == -1 ) {
|
|
if ( rangeLow == -1 ) {
|
|
result = TRUE; // empty rule
|
|
}
|
|
else {
|
|
if ( value == rangeLow ) {
|
|
result = TRUE;
|
|
}
|
|
else {
|
|
result = FALSE;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if ((rangeLow <= value) && (value <= rangeHigh)) {
|
|
result = TRUE;
|
|
}
|
|
else {
|
|
result = FALSE;
|
|
}
|
|
}
|
|
if (notIn) {
|
|
return !result;
|
|
}
|
|
else {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
AndConstraint::updateRepeatLimit(int32_t maxLimit) {
|
|
|
|
if ( op == MOD ) {
|
|
return uprv_max(opNum, maxLimit);
|
|
}
|
|
else {
|
|
if ( rangeHigh == -1 ) {
|
|
return(rangeLow>maxLimit? rangeLow : maxLimit);
|
|
return uprv_max(rangeLow, maxLimit);
|
|
}
|
|
else{
|
|
return uprv_max(rangeHigh, maxLimit);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
AndConstraint*
|
|
AndConstraint::add()
|
|
{
|
|
this->next = new AndConstraint();
|
|
return this->next;
|
|
}
|
|
|
|
OrConstraint::OrConstraint() {
|
|
childNode=NULL;
|
|
next=NULL;
|
|
}
|
|
|
|
OrConstraint::OrConstraint(const OrConstraint& other) {
|
|
if ( other.childNode == NULL ) {
|
|
this->childNode = NULL;
|
|
}
|
|
else {
|
|
this->childNode = new AndConstraint(*(other.childNode));
|
|
}
|
|
if (other.next == NULL ) {
|
|
this->next = NULL;
|
|
}
|
|
else {
|
|
this->next = new OrConstraint(*(other.next));
|
|
}
|
|
}
|
|
|
|
OrConstraint::~OrConstraint() {
|
|
if (childNode!=NULL) {
|
|
delete childNode;
|
|
}
|
|
if (next!=NULL) {
|
|
delete next;
|
|
}
|
|
}
|
|
|
|
AndConstraint*
|
|
OrConstraint::add()
|
|
{
|
|
OrConstraint *curOrConstraint=this;
|
|
{
|
|
while (curOrConstraint->next!=NULL) {
|
|
curOrConstraint = curOrConstraint->next;
|
|
}
|
|
curOrConstraint->next = NULL;
|
|
curOrConstraint->childNode = new AndConstraint();
|
|
}
|
|
return curOrConstraint->childNode;
|
|
}
|
|
|
|
UBool
|
|
OrConstraint::isFulfilled(int32_t number) {
|
|
OrConstraint* orRule=this;
|
|
UBool result=FALSE;
|
|
|
|
while (orRule!=NULL && !result) {
|
|
result=TRUE;
|
|
AndConstraint* andRule = orRule->childNode;
|
|
while (andRule!=NULL && result) {
|
|
result = andRule->isFulfilled(number);
|
|
andRule=andRule->next;
|
|
}
|
|
orRule = orRule->next;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
RuleChain::RuleChain() {
|
|
ruleHeader=NULL;
|
|
next = NULL;
|
|
repeatLimit=0;
|
|
}
|
|
|
|
RuleChain::RuleChain(const RuleChain& other) {
|
|
|
|
this->repeatLimit = other.repeatLimit;
|
|
this->keyword=other.keyword;
|
|
if (other.ruleHeader != NULL) {
|
|
this->ruleHeader = new OrConstraint(*(other.ruleHeader));
|
|
}
|
|
else {
|
|
this->ruleHeader = NULL;
|
|
}
|
|
if (other.next != NULL ) {
|
|
this->next = new RuleChain(*other.next);
|
|
}
|
|
else
|
|
{
|
|
this->next = NULL;
|
|
}
|
|
}
|
|
|
|
RuleChain::~RuleChain() {
|
|
if (next != NULL) {
|
|
delete next;
|
|
}
|
|
if ( ruleHeader != NULL ) {
|
|
delete ruleHeader;
|
|
}
|
|
}
|
|
|
|
UnicodeString
|
|
RuleChain::select(int32_t number) const {
|
|
|
|
if ( ruleHeader != NULL ) {
|
|
if (ruleHeader->isFulfilled(number)) {
|
|
return keyword;
|
|
}
|
|
}
|
|
if ( next != NULL ) {
|
|
return next->select(number);
|
|
}
|
|
else {
|
|
return PLURAL_KEYWORD_OTHER;
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
RuleChain::dumpRules(UnicodeString& result) {
|
|
UChar digitString[16];
|
|
|
|
if ( ruleHeader != NULL ) {
|
|
result += keyword;
|
|
OrConstraint* orRule=ruleHeader;
|
|
while ( orRule != NULL ) {
|
|
AndConstraint* andRule=orRule->childNode;
|
|
while ( andRule != NULL ) {
|
|
if ( (andRule->op==AndConstraint::NONE) && (andRule->rangeHigh==-1) ) {
|
|
result += UNICODE_STRING_SIMPLE(" n is ");
|
|
if (andRule->notIn) {
|
|
result += UNICODE_STRING_SIMPLE("not ");
|
|
}
|
|
uprv_itou(digitString,16, andRule->rangeLow,10,0);
|
|
result += UnicodeString(digitString);
|
|
}
|
|
else {
|
|
if (andRule->op==AndConstraint::MOD) {
|
|
result += UNICODE_STRING_SIMPLE(" n mod ");
|
|
uprv_itou(digitString,16, andRule->opNum,10,0);
|
|
result += UnicodeString(digitString);
|
|
}
|
|
else {
|
|
result += UNICODE_STRING_SIMPLE(" n ");
|
|
}
|
|
if (andRule->rangeHigh==-1) {
|
|
if (andRule->notIn) {
|
|
result += UNICODE_STRING_SIMPLE(" is not ");
|
|
uprv_itou(digitString,16, andRule->rangeLow,10,0);
|
|
result += UnicodeString(digitString);
|
|
}
|
|
else {
|
|
result += UNICODE_STRING_SIMPLE(" is ");
|
|
uprv_itou(digitString,16, andRule->rangeLow,10,0);
|
|
result += UnicodeString(digitString);
|
|
}
|
|
}
|
|
else {
|
|
if (andRule->notIn) {
|
|
result += UNICODE_STRING_SIMPLE(" not in ");
|
|
uprv_itou(digitString,16, andRule->rangeLow,10,0);
|
|
result += UnicodeString(digitString);
|
|
result += UNICODE_STRING_SIMPLE(" .. ");
|
|
uprv_itou(digitString,16, andRule->rangeHigh,10,0);
|
|
result += UnicodeString(digitString);
|
|
}
|
|
else {
|
|
result += UNICODE_STRING_SIMPLE(" in ");
|
|
uprv_itou(digitString,16, andRule->rangeLow,10,0);
|
|
result += UnicodeString(digitString);
|
|
result += UNICODE_STRING_SIMPLE(" .. ");
|
|
uprv_itou(digitString,16, andRule->rangeHigh,10,0);
|
|
}
|
|
}
|
|
}
|
|
if ( (andRule=andRule->next) != NULL) {
|
|
result += PK_AND;
|
|
}
|
|
}
|
|
if ( (orRule = orRule->next) != NULL ) {
|
|
result += PK_OR;
|
|
}
|
|
}
|
|
}
|
|
if ( next != NULL ) {
|
|
next->dumpRules(result);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
RuleChain::getRepeatLimit () {
|
|
return repeatLimit;
|
|
}
|
|
|
|
void
|
|
RuleChain::setRepeatLimit () {
|
|
int32_t limit=0;
|
|
|
|
if ( next != NULL ) {
|
|
next->setRepeatLimit();
|
|
limit = next->repeatLimit;
|
|
}
|
|
|
|
if ( ruleHeader != NULL ) {
|
|
OrConstraint* orRule=ruleHeader;
|
|
while ( orRule != NULL ) {
|
|
AndConstraint* andRule=orRule->childNode;
|
|
while ( andRule != NULL ) {
|
|
limit = andRule->updateRepeatLimit(limit);
|
|
andRule = andRule->next;
|
|
}
|
|
orRule = orRule->next;
|
|
}
|
|
}
|
|
repeatLimit = limit;
|
|
}
|
|
|
|
UErrorCode
|
|
RuleChain::getKeywords(int32_t capacityOfKeywords, UnicodeString* keywords, int32_t& arraySize) const {
|
|
if ( arraySize < capacityOfKeywords-1 ) {
|
|
keywords[arraySize++]=keyword;
|
|
}
|
|
else {
|
|
return U_BUFFER_OVERFLOW_ERROR;
|
|
}
|
|
|
|
if ( next != NULL ) {
|
|
return next->getKeywords(capacityOfKeywords, keywords, arraySize);
|
|
}
|
|
else {
|
|
return U_ZERO_ERROR;
|
|
}
|
|
}
|
|
|
|
UBool
|
|
RuleChain::isKeyword(const UnicodeString& keyword) const {
|
|
if ( this->keyword == keyword ) {
|
|
return TRUE;
|
|
}
|
|
|
|
if ( next != NULL ) {
|
|
return next->isKeyword(keyword);
|
|
}
|
|
else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
RuleParser::RuleParser() {
|
|
UErrorCode err=U_ZERO_ERROR;
|
|
const UnicodeString idStart=UNICODE_STRING_SIMPLE("[[a-z]]");
|
|
const UnicodeString idContinue=UNICODE_STRING_SIMPLE("[[a-z][A-Z][_][0-9]]");
|
|
idStartFilter = new UnicodeSet(idStart, err);
|
|
idContinueFilter = new UnicodeSet(idContinue, err);
|
|
}
|
|
|
|
RuleParser::~RuleParser() {
|
|
delete idStartFilter;
|
|
delete idContinueFilter;
|
|
}
|
|
|
|
void
|
|
RuleParser::checkSyntax(tokenType prevType, tokenType curType, UErrorCode &status)
|
|
{
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
switch(prevType) {
|
|
case none:
|
|
case tSemiColon:
|
|
if (curType!=tKeyword) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tVariableN :
|
|
if (curType != tIs && curType != tMod && curType != tIn && curType != tNot) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tZero:
|
|
case tOne:
|
|
case tTwo:
|
|
case tFew:
|
|
case tMany:
|
|
case tOther:
|
|
case tKeyword:
|
|
if (curType != tColon) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tColon :
|
|
if (curType != tVariableN) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tIs:
|
|
if ( curType != tNumber && curType != tNot) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tNot:
|
|
if (curType != tNumber && curType != tIn) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tMod:
|
|
case tDot:
|
|
case tIn:
|
|
case tAnd:
|
|
case tOr:
|
|
if (curType != tNumber && curType != tVariableN) {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
case tNumber:
|
|
if (curType != tDot && curType != tSemiColon && curType != tIs && curType != tNot &&
|
|
curType != tIn && curType != tAnd && curType != tOr)
|
|
{
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
break;
|
|
default:
|
|
status = U_UNEXPECTED_TOKEN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
RuleParser::getNextToken(const UnicodeString& ruleData,
|
|
int32_t *ruleIndex,
|
|
UnicodeString& token,
|
|
tokenType& type,
|
|
UErrorCode &status)
|
|
{
|
|
int32_t curIndex= *ruleIndex;
|
|
UChar ch;
|
|
tokenType prevType=none;
|
|
|
|
while (curIndex<ruleData.length()) {
|
|
ch = ruleData.charAt(curIndex);
|
|
if ( !inRange(ch, type) ) {
|
|
status = U_ILLEGAL_CHARACTER;
|
|
return;
|
|
}
|
|
switch (type) {
|
|
case tSpace:
|
|
if ( *ruleIndex != curIndex ) { // letter
|
|
token=UnicodeString(ruleData, *ruleIndex, curIndex-*ruleIndex);
|
|
*ruleIndex=curIndex;
|
|
type=prevType;
|
|
getKeyType(token, type, status);
|
|
return;
|
|
}
|
|
else {
|
|
*ruleIndex=*ruleIndex+1;
|
|
}
|
|
break; // consective space
|
|
case tColon:
|
|
case tSemiColon:
|
|
if ( *ruleIndex != curIndex ) {
|
|
token=UnicodeString(ruleData, *ruleIndex, curIndex-*ruleIndex);
|
|
*ruleIndex=curIndex;
|
|
type=prevType;
|
|
getKeyType(token, type, status);
|
|
return;
|
|
}
|
|
else {
|
|
*ruleIndex=curIndex+1;
|
|
return;
|
|
}
|
|
case tLetter:
|
|
if ((type==prevType)||(prevType==none)) {
|
|
prevType=type;
|
|
break;
|
|
}
|
|
break;
|
|
case tNumber:
|
|
if ((type==prevType)||(prevType==none)) {
|
|
prevType=type;
|
|
break;
|
|
}
|
|
else {
|
|
*ruleIndex=curIndex+1;
|
|
return;
|
|
}
|
|
case tDot:
|
|
if (prevType==none) { // first dot
|
|
prevType=type;
|
|
continue;
|
|
}
|
|
else {
|
|
if ( *ruleIndex != curIndex ) {
|
|
token=UnicodeString(ruleData, *ruleIndex, curIndex-*ruleIndex);
|
|
*ruleIndex=curIndex; // letter
|
|
type=prevType;
|
|
getKeyType(token, type, status);
|
|
return;
|
|
}
|
|
else { // two consective dots
|
|
*ruleIndex=curIndex+2;
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
status = U_UNEXPECTED_TOKEN;
|
|
return;
|
|
}
|
|
curIndex++;
|
|
}
|
|
if ( curIndex>=ruleData.length() ) {
|
|
if ( (type == tLetter)||(type == tNumber) ) {
|
|
token=UnicodeString(ruleData, *ruleIndex, curIndex-*ruleIndex);
|
|
getKeyType(token, type, status);
|
|
}
|
|
*ruleIndex = ruleData.length();
|
|
}
|
|
}
|
|
|
|
UBool
|
|
RuleParser::inRange(UChar ch, tokenType& type) {
|
|
if ((ch>=CAP_A) && (ch<=CAP_Z)) {
|
|
// we assume all characters are in lower case already.
|
|
return FALSE;
|
|
}
|
|
if ((ch>=LOW_A) && (ch<=LOW_Z)) {
|
|
type = tLetter;
|
|
return TRUE;
|
|
}
|
|
if ((ch>=U_ZERO) && (ch<=U_NINE)) {
|
|
type = tNumber;
|
|
return TRUE;
|
|
}
|
|
switch (ch) {
|
|
case COLON:
|
|
type = tColon;
|
|
return TRUE;
|
|
case SPACE:
|
|
type = tSpace;
|
|
return TRUE;
|
|
case SEMI_COLON:
|
|
type = tSemiColon;
|
|
return TRUE;
|
|
case DOT:
|
|
type = tDot;
|
|
return TRUE;
|
|
default :
|
|
type = none;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
RuleParser::getKeyType(const UnicodeString& token, tokenType& keyType, UErrorCode &status)
|
|
{
|
|
if ( keyType==tNumber) {
|
|
}
|
|
else if (token==PK_VAR_N) {
|
|
keyType = tVariableN;
|
|
}
|
|
else if (token==PK_IS) {
|
|
keyType = tIs;
|
|
}
|
|
else if (token==PK_AND) {
|
|
keyType = tAnd;
|
|
}
|
|
else if (token==PK_IN) {
|
|
keyType = tIn;
|
|
}
|
|
else if (token==PK_NOT) {
|
|
keyType = tNot;
|
|
}
|
|
else if (token==PK_MOD) {
|
|
keyType = tMod;
|
|
}
|
|
else if (token==PK_OR) {
|
|
keyType = tOr;
|
|
}
|
|
else if ( isValidKeyword(token) ) {
|
|
keyType = tKeyword;
|
|
}
|
|
else {
|
|
status = U_UNEXPECTED_TOKEN;
|
|
}
|
|
}
|
|
|
|
UBool
|
|
RuleParser::isValidKeyword(const UnicodeString& token) {
|
|
if ( token.length()==0 ) {
|
|
return FALSE;
|
|
}
|
|
if ( idStartFilter->contains(token.charAt(0) )==TRUE ) {
|
|
int32_t i;
|
|
for (i=1; i< token.length(); i++) {
|
|
if (idContinueFilter->contains(token.charAt(i))== FALSE) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
PluralKeywordEnumeration::PluralKeywordEnumeration(UErrorCode& status) :
|
|
fKeywordNames(status)
|
|
{
|
|
pos=0;
|
|
}
|
|
|
|
const UnicodeString*
|
|
PluralKeywordEnumeration::snext(UErrorCode& status) {
|
|
if (U_SUCCESS(status) && pos < fKeywordNames.size()) {
|
|
return (const UnicodeString*)fKeywordNames.elementAt(pos++);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
PluralKeywordEnumeration::reset(UErrorCode& /*status*/) {
|
|
pos=0;
|
|
}
|
|
|
|
int32_t
|
|
PluralKeywordEnumeration::count(UErrorCode& /*status*/) const {
|
|
return fKeywordNames.size();
|
|
}
|
|
|
|
PluralKeywordEnumeration::~PluralKeywordEnumeration() {
|
|
UnicodeString *s;
|
|
for (int32_t i=0; i<fKeywordNames.size(); ++i) {
|
|
if ((s=(UnicodeString *)fKeywordNames.elementAt(i))!=NULL) {
|
|
delete s;
|
|
}
|
|
}
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|