Java dilinde bir dilin unicode karakterleri elde etme

Question

Java'da herhangi bir yol var mı? Böylece belirli bir dilin tüm Unicode karakterlerini (örneğin Bengalce veya Arapça) alabilir miyim?

Answer 1

java.lang.Character sınıfının UnicodeBlock adlı bir iç statik sınıfı vardır. tüm karakterleri yineleme

Character.UnicodeBlock block = Character.UnicodeBlock.ARABIC; 

By (ya da daha doğrusu, Unicode kod puan) bulmak her kontrol etmek onun Unicode Blok mümkündür:: Sen, örneğin, thusly Arapça Unicode Blok alabilirsiniz

public static void main(String[] args) { 
    Set<Character> arabicChars = findCharactersInUnicodeBlock(Character.UnicodeBlock.ARABIC); 
    Set<Character> bengaliChars = findCharactersInUnicodeBlock(Character.UnicodeBlock.BENGALI); 
} 

private static Set<Character> findCharactersInUnicodeBlock(final Character.UnicodeBlock block) { 
    final Set<Character> chars = new HashSet<Character>(); 
    for (int codePoint = Character.MIN_CODE_POINT; codePoint <= Character.MAX_CODE_POINT; codePoint++) { 
     if (block == Character.UnicodeBlock.of(codePoint)) { 
      chars.add((char) codePoint); 
     } 
    } 
    return chars; 
} 

Answer 2

1,7'ye kadar, Java'nın Unicode'daki komut dosyaları için desteği yoktur. Java olsa da, oldukça eski Unicode özellik desteği var. Temelde Unicode'un antilillennial enkarnasyonlarında sıkışmış. Bu gerçek bir sorun. Onlar, JDK7 ile Unicode 6'ya yetişeceklerini iddia ediyorlar, ancak henüz uygun bir mülk desteğine sahip olacağına dair bir kanıt görmedim. Unicode 6.0'da

, temel Multilingual düzlemi olanların 1,020 ile genel Arapça olarak saymak 1.051 kod noktaları vardır:

% unichars --bmp '\p{Script=Arabic}' | wc -l 
    1020 

% unichars -a '\p{Script=Arabic}' | wc -l 
    1051 

unichars programı Perl ile yazılmış olmasıdır işleri nedeni, ve Perl, her zaman mükemmel Unicode özellik desteğine sahiptir. Bunu Unicode 6.0'a karşı çalıştırıyorum; Unicode'un önceki sürümlerinde biraz daha az vardı. Aslında, 17 yeni Arapça karakter için Unicode 6.0:

% unichars -a '\p{Script=Arabic}' '\p{Age:6.0}' | wc -l 
     17 

Eklenmiştir. Komut dosyaları bloklardan farklıdır. Belirli bir bloktaki tüm kod noktaları aynı betikte değildir. Aynı derecede önemli olan, genellikle tuhaf bloklarda dağılmış belirli bir senaryonun karakterlerini buluyorsunuz.

% unichars '\p{InGreek}' '\P{IsGreek}'ˋ | wc -l 
    18 

Ve Arapça blokta 13 Arap olmayan karakterler:

% unichars '\p{InArabic}' '\P{IsArabic}' | wc -l 
    13 

Artı 4 Yunan bloklar vardır

Örneğin

, Yunan blokta 18 olmayan Yunan karakterler vardır ve 4 (veya 5) Arap olanlar:

% uniprops -l | grep 'Block:.*Greek' 
Block:Ancient_Greek_Musical_Notation 
Block:Ancient_Greek_Numbers 
Block:Greek 
Block:Greek_And_Coptic 
Block:Greek_Extended 

% uniprops -l | grep 'Block:.*Arab' 
Block:Arabic 
Block:Arabic_Presentation_Forms_A 
Block:Arabic_Presentation_Forms_B 
Block:Arabic_Supplement 
Block:Old_South_Arabian 

\p{Block:Greek} ve \p{Greek_and_Coptic} ali olan Ases, ama geri kalanı hepsi ayrı.

Ancak tüm bu bloklara baksanız bile, bazılarını özleyeceksiniz. Örneğin:

% unichars '\p{IsGreek}' '[^\p{InAncient_Greek_Musical_Notation}\p{InAncient_Greek_Numbers}\p{InGreek}\p{InGreek_Extended}]' 
ᴦ 7462 1D26 GREEK LETTER SMALL CAPITAL GAMMA 
ᴧ 7463 1D27 GREEK LETTER SMALL CAPITAL LAMDA 
ᴨ 7464 1D28 GREEK LETTER SMALL CAPITAL PI 
ᴩ 7465 1D29 GREEK LETTER SMALL CAPITAL RHO 
ᴪ 7466 1D2A GREEK LETTER SMALL CAPITAL PSI 
ᵝ 7517 1D5D MODIFIER LETTER SMALL BETA 
ᵞ 7518 1D5E MODIFIER LETTER SMALL GREEK GAMMA 
ᵟ 7519 1D5F MODIFIER LETTER SMALL DELTA 
ᵠ 7520 1D60 MODIFIER LETTER SMALL GREEK PHI 
ᵡ 7521 1D61 MODIFIER LETTER SMALL CHI 
ᵦ 7526 1D66 GREEK SUBSCRIPT SMALL LETTER BETA 
ᵧ 7527 1D67 GREEK SUBSCRIPT SMALL LETTER GAMMA 
ᵨ 7528 1D68 GREEK SUBSCRIPT SMALL LETTER RHO 
ᵩ 7529 1D69 GREEK SUBSCRIPT SMALL LETTER PHI 
ᵪ 7530 1D6A GREEK SUBSCRIPT SMALL LETTER CHI 
ᶿ 7615 1DBF MODIFIER LETTER SMALL THETA 
Ω 8486 2126 OHM SIGN 

Sorun görüyor musunuz?

BTW, tüm olası özellikleri listelemekten daha fazlası için uniprops'u kullanırsınız. Ayrıca size herhangi bir kod noktası özelliklerini verebilir: bunları yararlı bulursanız, uniprops ve unichars programlar için kaynak indirebilirsiniz

% uniprops -a 1dbf 9e6 NEL Greek:Omicron 
U+1DBF <ᶿ> \N{ MODIFIER LETTER SMALL THETA }: 
    \w \pL \p{L_} \p{Lm} 
    All Any Alnum Alpha Alphabetic Assigned Greek Is_Greek InPhoneticExtensionsSupplement Case_Ignorable CI Cased Changes_When_NFKC_Casefolded CWKCF L Lm Gr_Base Grapheme_Base Graph GrBase Grek ID_Continue IDC ID_Start IDS Letter L_ Modifier_Letter Lower Lowercase Print Word XID_Continue XIDC XID_Start XIDS 
    Age:4.1 Bidi_Class:L Bidi_Class=Left_To_Right Bidi_Class:Left_To_Right Bc=L Block:Phonetic_Extensions_Supplement Canonical_Combining_Class:0 Canonical_Combining_Class=Not_Reordered Canonical_Combining_Class:Not_Reordered Ccc=NR Canonical_Combining_Class:NR Decomposition_Type:Non_Canon Decomposition_Type=Non_Canonical 
     Decomposition_Type:Non_Canonical Dt=NonCanon Decomposition_Type:Sup Decomposition_Type=Super Decomposition_Type:Super Dt=Sup East_Asian_Width=Neutral East_Asian_Width:Neutral Grapheme_Cluster_Break:Other GCB=XX Grapheme_Cluster_Break:XX Grapheme_Cluster_Break=Other Script=Greek Hangul_Syllable_Type:NA 
     Hangul_Syllable_Type=Not_Applicable Hangul_Syllable_Type:Not_Applicable Hst=NA Joining_Group:No_Joining_Group Jg=NoJoiningGroup Joining_Type:Non_Joining Jt=U Joining_Type:U Joining_Type=Non_Joining Line_Break:AL Line_Break=Alphabetic Line_Break:Alphabetic Lb=AL Numeric_Type:None Nt=None Numeric_Value:NaN Nv=NaN Present_In:4.1 
     In=4.1 Present_In:5.0 In=5.0 Present_In:5.1 In=5.1 Present_In:5.2 In=5.2 Script:Greek Sc=Grek Script:Grek Sentence_Break:LO Sentence_Break=Lower Sentence_Break:Lower SB=LO Word_Break:ALetter WB=LE Word_Break:LE Word_Break=ALetter 
U+09E6 <০> \N{ BENGALI DIGIT ZERO }: 
    \w \d \pN \p{Nd} 
    All Any Alnum Assigned Beng Bengali InBengali Is_Bengali Decimal_Number Digit Nd N Gr_Base Grapheme_Base Graph GrBase ID_Continue IDC Number Print Word XID_Continue XIDC 
    Age:1.1 Script=Bengali Block=Bengali Bidi_Class:L Bidi_Class=Left_To_Right Bidi_Class:Left_To_Right Bc=L Block:Bengali Canonical_Combining_Class:0 Canonical_Combining_Class=Not_Reordered Canonical_Combining_Class:Not_Reordered Ccc=NR Canonical_Combining_Class:NR Decomposition_Type:None Dt=None East_Asian_Width=Neutral 
     East_Asian_Width:Neutral Grapheme_Cluster_Break:Other GCB=XX Grapheme_Cluster_Break:XX Grapheme_Cluster_Break=Other Hangul_Syllable_Type:NA Hangul_Syllable_Type=Not_Applicable Hangul_Syllable_Type:Not_Applicable Hst=NA Joining_Group:No_Joining_Group Jg=NoJoiningGroup Joining_Type:Non_Joining Jt=U Joining_Type:U 
     Joining_Type=Non_Joining Line_Break:NU Line_Break=Numeric Line_Break:Numeric Lb=NU Numeric_Type:De Numeric_Type=Decimal Numeric_Type:Decimal Nt=De Numeric_Value:0 Nv=0 Present_In:1.1 Age=1.1 In=1.1 Present_In:2.0 In=2.0 Present_In:2.1 In=2.1 Present_In:3.0 In=3.0 Present_In:3.1 In=3.1 Present_In:3.2 In=3.2 Present_In:4.0 In=4.0 
     Present_In:4.1 In=4.1 Present_In:5.0 In=5.0 Present_In:5.1 In=5.1 Present_In:5.2 In=5.2 Script:Beng Script:Bengali Sc=Beng Sentence_Break:NU Sentence_Break=Numeric Sentence_Break:Numeric SB=NU Word_Break:NU Word_Break=Numeric Word_Break:Numeric WB=NU 
U+0085 <U+0085> \N{ NEXT LINE (NEL) }: 
    \s \v \R \pC \p{Cc} 
    All Any Assigned InLatin1 C Other Cc Cntrl Common Zyyy Control Pat_WS Pattern_White_Space PatWS Space SpacePerl VertSpace White_Space WSpace 
    Age:1.1 Bidi_Class:B Bidi_Class=Paragraph_Separator Bidi_Class:Paragraph_Separator Bc=B Block:Latin_1 Block=Latin_1_Supplement Block:Latin_1_Supplement Blk=Latin1 Canonical_Combining_Class:0 Canonical_Combining_Class=Not_Reordered Canonical_Combining_Class:Not_Reordered Ccc=NR Canonical_Combining_Class:NR Script=Common 
     Decomposition_Type:None Dt=None East_Asian_Width=Neutral East_Asian_Width:Neutral Grapheme_Cluster_Break:CN Grapheme_Cluster_Break=Control Grapheme_Cluster_Break:Control GCB=CN Hangul_Syllable_Type:NA Hangul_Syllable_Type=Not_Applicable Hangul_Syllable_Type:Not_Applicable Hst=NA Joining_Group:No_Joining_Group Jg=NoJoiningGroup 
     Joining_Type:Non_Joining Jt=U Joining_Type:U Joining_Type=Non_Joining Line_Break:Next_Line Lb=NL Line_Break:NL Line_Break=Next_Line Numeric_Type:None Nt=None Numeric_Value:NaN Nv=NaN Present_In:1.1 Age=1.1 In=1.1 Present_In:2.0 In=2.0 Present_In:2.1 In=2.1 Present_In:3.0 In=3.0 Present_In:3.1 In=3.1 Present_In:3.2 In=3.2 
     Present_In:4.0 In=4.0 Present_In:4.1 In=4.1 Present_In:5.0 In=5.0 Present_In:5.1 In=5.1 Present_In:5.2 In=5.2 Script:Common Sc=Zyyy Script:Zyyy Sentence_Break:SE Sentence_Break=Sep Sentence_Break:Sep SB=SE Word_Break:Newline WB=NL Word_Break:NL Word_Break=Newline 
U+039F <Ο> \N{ GREEK CAPITAL LETTER OMICRON }: 
    \w \pL \p{LC} \p{L_} \p{L&} \p{Lu} 
    All Any Alnum Alpha Alphabetic Assigned Greek Is_Greek InGreek Cased Cased_Letter LC Changes_When_Casefolded CWCF Changes_When_Casemapped CWCM Changes_When_Lowercased CWL Changes_When_NFKC_Casefolded CWKCF Lu L Gr_Base Grapheme_Base Graph GrBase Grek Greek_And_Coptic ID_Continue IDC ID_Start IDS Letter L_ Uppercase_Letter Print Upper 
     Uppercase Word XID_Continue XIDC XID_Start XIDS 
    Age:1.1 Bidi_Class:L Bidi_Class=Left_To_Right Bidi_Class:Left_To_Right Bc=L Block:Greek Block=Greek_And_Coptic Block:Greek_And_Coptic Blk=Greek Canonical_Combining_Class:0 Canonical_Combining_Class=Not_Reordered Canonical_Combining_Class:Not_Reordered Ccc=NR Canonical_Combining_Class:NR Decomposition_Type:None Dt=None 
     East_Asian_Width:A East_Asian_Width=Ambiguous East_Asian_Width:Ambiguous Ea=A Grapheme_Cluster_Break:Other GCB=XX Grapheme_Cluster_Break:XX Grapheme_Cluster_Break=Other Script=Greek Hangul_Syllable_Type:NA Hangul_Syllable_Type=Not_Applicable Hangul_Syllable_Type:Not_Applicable Hst=NA Joining_Group:No_Joining_Group Jg=NoJoiningGroup 
     Joining_Type:Non_Joining Jt=U Joining_Type:U Joining_Type=Non_Joining Line_Break:AL Line_Break=Alphabetic Line_Break:Alphabetic Lb=AL Numeric_Type:None Nt=None Numeric_Value:NaN Nv=NaN Present_In:1.1 Age=1.1 In=1.1 Present_In:2.0 In=2.0 Present_In:2.1 In=2.1 Present_In:3.0 In=3.0 Present_In:3.1 In=3.1 Present_In:3.2 In=3.2 
     Present_In:4.0 In=4.0 Present_In:4.1 In=4.1 Present_In:5.0 In=5.0 Present_In:5.1 In=5.1 Present_In:5.2 In=5.2 Script:Greek Sc=Grek Script:Grek Sentence_Break:UP Sentence_Break=Upper Sentence_Break:Upper SB=UP Word_Break:ALetter WB=LE Word_Break:LE Word_Break=ALetter 

. Grupta uninames üçte biri var. Hepsi talimatlar ve örnekler ile birlikte gelir.

Bu özelliklerden bazıları henüz Java'da doğrudan bulunmuyor olsa da, isterseniz Java kodunu oluşturmak için Perl'i kullanmanız yeterlidir; Her zaman kendim yaparım. :)