질문자 :weston
[0-9] 또는 \d 대신 정규식에서 [0123456789] 를 사용한 답변에 대해 댓글을 달았습니다. 나는 아마도 문자 집합보다 범위나 숫자 지정자를 사용하는 것이 더 효율적일 것이라고 말했다.
나는 오늘 그것을 테스트하기로 결정했고 (적어도 C# 정규식 엔진에서) \d 가 크게 다르지 않은 것처럼 보이는 다른 둘 중 하나보다 덜 효율적으로 보인다는 것을 놀랍게도 발견했습니다. 다음은 실제로 숫자가 포함된 5077이 포함된 1000개의 임의 문자로 구성된 10000개 이상의 임의 문자열에 대한 테스트 결과입니다.
Regex \d took 00:00:00.2141226 result: 5077/10000 Regex [0-9] took 00:00:00.1357972 result: 5077/10000 63.42 % of first Regex [0123456789] took 00:00:00.1388997 result: 5077/10000 64.87 % of first
나는 두 가지 이유로 놀랐습니다. 누군가가 밝힐 수 있다면 관심을 가질 것입니다.
- 범위가 세트보다 훨씬 더 효율적으로 구현될 것이라고 생각했을 것입니다.
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\d [0-9] 보다 더 나쁜 이유를 이해할 수 없습니다. [0-9] 를 줄인 것보다 \d 더 많은 것이 있습니까?
테스트 코드는 다음과 같습니다.
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; using System.Text.RegularExpressions; namespace SO_RegexPerformance { class Program { static void Main(string[] args) { var rand = new Random(1234); var strings = new List<string>(); //10K random strings for (var i = 0; i < 10000; i++) { //generate random string var sb = new StringBuilder(); for (var c = 0; c < 1000; c++) { //add az randomly sb.Append((char)('a' + rand.Next(26))); } //in roughly 50% of them, put a digit if (rand.Next(2) == 0) { //replace 1 char with a digit 0-9 sb[rand.Next(sb.Length)] = (char)('0' + rand.Next(10)); } strings.Add(sb.ToString()); } var baseTime = testPerfomance(strings, @"\d"); Console.WriteLine(); var testTime = testPerfomance(strings, "[0-9]"); Console.WriteLine(" {0:P2} of first", testTime.TotalMilliseconds / baseTime.TotalMilliseconds); testTime = testPerfomance(strings, "[0123456789]"); Console.WriteLine(" {0:P2} of first", testTime.TotalMilliseconds / baseTime.TotalMilliseconds); } private static TimeSpan testPerfomance(List<string> strings, string regex) { var sw = new Stopwatch(); int successes = 0; var rex = new Regex(regex); sw.Start(); foreach (var str in strings) { if (rex.Match(str).Success) { successes++; } } sw.Stop(); Console.Write("Regex {0,-12} took {1} result: {2}/{3}", regex, sw.Elapsed, successes, strings.Count); return sw.Elapsed; } } }
\d 는 모든 유니코드 숫자를 검사하지만 [0-9] 는 이 10자로 제한됩니다. 예를 들어, 페르시아어 숫자 ۱۲۳۴۵۶۷۸۹ \d [0-9] 와 일치하지 않는 유니코드 숫자의 예입니다.
다음 코드를 사용하여 이러한 모든 문자 목록을 생성할 수 있습니다.
var sb = new StringBuilder(); for(UInt16 i = 0; i < UInt16.MaxValue; i++) { string str = Convert.ToChar(i).ToString(); if (Regex.IsMatch(str, @"\d")) sb.Append(str); } Console.WriteLine(sb.ToString());
다음을 생성합니다.
012345678901234567890123456789߀߁߂߃߄߅߆߇߈߉012345678 9 01২345678901234567890123456789 ୦୧୨୩୪୫୬୭୮୯ 0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 ᠐᠑᠒᠓᠔᠕᠖᠗᠘᠙ ᥆᥇᥈᥉᥊᥋᥌᥍᥎᥏ ᧐᧑᧒᧓᧔᧕᧖᧗᧘᧙ ᭐᭑᭒᭓᭔᭕᭖᭗᭘᭙᮰᮱᮲᮳᮴᮵᮶᮷᮸᮹᱀᱁᱂᱃᱄᱅᱆᱇᱈᱉᱐᱑᱒᱓᱔᱕᱖᱗᱘᱙꘠꘡꘢꘣꘤꘥꘦꘧꘨꘩꣐꣑꣒꣓꣔꣕꣖꣗꣘꣙꤀꤁꤂꤃꤄꤅꤆꤇꤈꤉꩐꩑꩒꩓꩔꩕꩖꩗꩘꩙0123456789
문서에서 이를 알아차린 ByteBlast에게 감사를 표합니다. 정규식 생성자를 변경하기만 하면 됩니다.
var rex = new Regex(regex, RegexOptions.ECMAScript);
새로운 타이밍 제공:
Regex \d took 00:00:00.1355787 result: 5077/10000 Regex [0-9] took 00:00:00.1360403 result: 5077/10000 100.34 % of first Regex [0123456789] took 00:00:00.1362112 result: 5077/10000 100.47 % of first
From 정규식의 "\d"는 숫자를 의미합니까? :
[0-9] \d 와 동일하지 않습니다. [0-9] 0123456789 문자만 일치하는 반면 \d 는 [0-9] 및 기타 숫자 문자와 일치합니다(예: 동부 아라비아 숫자 ٠١٢٣٤٥٦٧٨٩
Sina Iravianian의 최고 답변에 추가하여 유니코드 코드 포인트의 전체 범위를 사용하는 코드의 .NET 4.5 버전(해당 버전만 UTF16 출력을 지원하므로 처음 세 줄 참조)이 있습니다. 상위 유니코드 평면에 대한 적절한 지원이 없기 때문에 많은 사람들이 상위 유니코드 평면을 항상 확인하고 포함하는 것을 인식하지 못합니다. 그럼에도 불구하고 때때로 그들은 몇 가지 중요한 문자를 포함합니다.
업데이트
\d 는 정규식에서 BMP가 아닌 문자를 지원하지 않기 때문에 ( xanatos 덕분에) 유니코드 문자 데이터베이스를 사용하는 버전입니다.
업데이트 2
damilola-adegunwa 덕분에 UCD에 대한 누락된 참조를 추가했습니다(NuGet 패키지 UnicodeInformation를 통해). 또한 최신 .NET 코어 버전 및 UTF-8 출력으로 업데이트되었습니다.
// reference https://www.nuget.org/packages/UnicodeInformation/ using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Globalization; using System.Unicode; public class Program { public static void Main() { var unicodeEncoding = new UTF8Encoding(false); Console.OutputEncoding = unicodeEncoding; var numberCategories = new HashSet<UnicodeCategory>(new []{ UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, UnicodeCategory.OtherNumber }); var numberLikeChars = from codePoint in Enumerable.Range(0, 0x10ffff) where codePoint > UInt16.MaxValue || (!char.IsLowSurrogate((char) codePoint) && !char.IsHighSurrogate((char) codePoint)) let charInfo = UnicodeInfo.GetCharInfo(codePoint) where numberCategories.Contains(charInfo.Category) let codePointString = char.ConvertFromUtf32(codePoint) select (codePoint, charInfo, codePointString); foreach (var (codePoint, charInfo, codePointString) in numberLikeChars) { Console.Write("U+{0} ", codePoint.ToString("X6")); Console.Write(" {0,-4}", codePointString); Console.Write(" {0,-40}", charInfo.Name ?? charInfo.OldName); Console.Write(" {0,-6}", CharUnicodeInfo.GetNumericValue(codePointString, 0)); Console.Write(" {0,-6}", CharUnicodeInfo.GetDigitValue(codePointString, 0)); Console.Write(" {0,-6}", CharUnicodeInfo.GetDecimalDigitValue(codePointString, 0)); Console.WriteLine(" {0}", charInfo.Category); } } }
다음 출력을 생성합니다.
U+000030 0 DIGIT ZERO 0 0 0 DecimalDigitNumber U+000031 1 DIGIT ONE 1 1 1 DecimalDigitNumber U+000032 2 DIGIT TWO 2 2 2 DecimalDigitNumber U+000033 3 DIGIT THREE 3 3 3 DecimalDigitNumber U+000034 4 DIGIT FOUR 4 4 4 DecimalDigitNumber U+000035 5 DIGIT FIVE 5 5 5 DecimalDigitNumber U+000036 6 DIGIT SIX 6 6 6 DecimalDigitNumber U+000037 7 DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000038 8 DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000039 9 DIGIT NINE 9 9 9 DecimalDigitNumber U+0000B2 ² SUPERSCRIPT TWO 2 2 -1 OtherNumber U+0000B3 ³ SUPERSCRIPT THREE 3 3 -1 OtherNumber U+0000B9 ¹ SUPERSCRIPT ONE 1 1 -1 OtherNumber U+0000BC ¼ VULGAR FRACTION ONE QUARTER 0.25 -1 -1 OtherNumber U+0000BD ½ VULGAR FRACTION ONE HALF 0.5 -1 -1 OtherNumber U+0000BE ¾ VULGAR FRACTION THREE QUARTERS 0.75 -1 -1 OtherNumber U+000660 ٠ ARABIC-INDIC DIGIT ZERO 0 0 0 DecimalDigitNumber U+000661 ١ ARABIC-INDIC DIGIT ONE 1 1 1 DecimalDigitNumber U+000662 ٢ ARABIC-INDIC DIGIT TWO 2 2 2 DecimalDigitNumber U+000663 ٣ ARABIC-INDIC DIGIT THREE 3 3 3 DecimalDigitNumber U+000664 ٤ ARABIC-INDIC DIGIT FOUR 4 4 4 DecimalDigitNumber U+000665 ٥ ARABIC-INDIC DIGIT FIVE 5 5 5 DecimalDigitNumber U+000666 ٦ ARABIC-INDIC DIGIT SIX 6 6 6 DecimalDigitNumber U+000667 ٧ ARABIC-INDIC DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000668 ٨ ARABIC-INDIC DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000669 ٩ ARABIC-INDIC DIGIT NINE 9 9 9 DecimalDigitNumber U+0006F0 ۰ EXTENDED ARABIC-INDIC DIGIT ZERO 0 0 0 DecimalDigitNumber U+0006F1 ۱ EXTENDED ARABIC-INDIC DIGIT ONE 1 1 1 DecimalDigitNumber U+0006F2 ۲ EXTENDED ARABIC-INDIC DIGIT TWO 2 2 2 DecimalDigitNumber U+0006F3 ۳ EXTENDED ARABIC-INDIC DIGIT THREE 3 3 3 DecimalDigitNumber U+0006F4 ۴ EXTENDED ARABIC-INDIC DIGIT FOUR 4 4 4 DecimalDigitNumber U+0006F5 ۵ EXTENDED ARABIC-INDIC DIGIT FIVE 5 5 5 DecimalDigitNumber U+0006F6 ۶ EXTENDED ARABIC-INDIC DIGIT SIX 6 6 6 DecimalDigitNumber U+0006F7 ۷ EXTENDED ARABIC-INDIC DIGIT SEVEN 7 7 7 DecimalDigitNumber U+0006F8 ۸ EXTENDED ARABIC-INDIC DIGIT EIGHT 8 8 8 DecimalDigitNumber U+0006F9 ۹ EXTENDED ARABIC-INDIC DIGIT NINE 9 9 9 DecimalDigitNumber U+0007C0 ߀ NKO DIGIT ZERO 0 0 0 DecimalDigitNumber U+0007C1 ߁ NKO DIGIT ONE 1 1 1 DecimalDigitNumber U+0007C2 ߂ NKO DIGIT TWO 2 2 2 DecimalDigitNumber U+0007C3 ߃ NKO DIGIT THREE 3 3 3 DecimalDigitNumber U+0007C4 ߄ NKO DIGIT FOUR 4 4 4 DecimalDigitNumber U+0007C5 ߅ NKO DIGIT FIVE 5 5 5 DecimalDigitNumber U+0007C6 ߆ NKO DIGIT SIX 6 6 6 DecimalDigitNumber U+0007C7 ߇ NKO DIGIT SEVEN 7 7 7 DecimalDigitNumber U+0007C8 ߈ NKO DIGIT EIGHT 8 8 8 DecimalDigitNumber U+0007C9 ߉ NKO DIGIT NINE 9 9 9 DecimalDigitNumber U+000966 ० DEVANAGARI DIGIT ZERO 0 0 0 DecimalDigitNumber U+000967 १ DEVANAGARI DIGIT ONE 1 1 1 DecimalDigitNumber U+000968 २ DEVANAGARI DIGIT TWO 2 2 2 DecimalDigitNumber U+000969 ३ DEVANAGARI DIGIT THREE 3 3 3 DecimalDigitNumber U+00096A ४ DEVANAGARI DIGIT FOUR 4 4 4 DecimalDigitNumber U+00096B ५ DEVANAGARI DIGIT FIVE 5 5 5 DecimalDigitNumber U+00096C ६ DEVANAGARI DIGIT SIX 6 6 6 DecimalDigitNumber U+00096D ७ DEVANAGARI DIGIT SEVEN 7 7 7 DecimalDigitNumber U+00096E ८ DEVANAGARI DIGIT EIGHT 8 8 8 DecimalDigitNumber U+00096F ९ DEVANAGARI DIGIT NINE 9 9 9 DecimalDigitNumber U+0009E6 ০ BENGALI DIGIT ZERO 0 0 0 DecimalDigitNumber U+0009E7 ১ BENGALI DIGIT ONE 1 1 1 DecimalDigitNumber U+0009E8 ২ BENGALI DIGIT TWO 2 2 2 DecimalDigitNumber U+0009E9 ৩ BENGALI DIGIT THREE 3 3 3 DecimalDigitNumber U+0009EA ৪ BENGALI DIGIT FOUR 4 4 4 DecimalDigitNumber U+0009EB ৫ BENGALI DIGIT FIVE 5 5 5 DecimalDigitNumber U+0009EC ৬ BENGALI DIGIT SIX 6 6 6 DecimalDigitNumber U+0009ED ৭ BENGALI DIGIT SEVEN 7 7 7 DecimalDigitNumber U+0009EE ৮ BENGALI DIGIT EIGHT 8 8 8 DecimalDigitNumber U+0009EF ৯ BENGALI DIGIT NINE 9 9 9 DecimalDigitNumber U+0009F4 ৴ BENGALI CURRENCY NUMERATOR ONE 0.0625 -1 -1 OtherNumber U+0009F5 ৵ BENGALI CURRENCY NUMERATOR TWO 0.125 -1 -1 OtherNumber U+0009F6 ৶ BENGALI CURRENCY NUMERATOR THREE 0.1875 -1 -1 OtherNumber U+0009F7 ৷ BENGALI CURRENCY NUMERATOR FOUR 0.25 -1 -1 OtherNumber U+0009F8 ৸ BENGALI CURRENCY NUMERATOR ONE LESS THAN THE DENOMINATOR 0.75 -1 -1 OtherNumber U+0009F9 ৹ BENGALI CURRENCY DENOMINATOR SIXTEEN 16 -1 -1 OtherNumber U+000A66 ੦ GURMUKHI DIGIT ZERO 0 0 0 DecimalDigitNumber U+000A67 ੧ GURMUKHI DIGIT ONE 1 1 1 DecimalDigitNumber U+000A68 ੨ GURMUKHI DIGIT TWO 2 2 2 DecimalDigitNumber U+000A69 ੩ GURMUKHI DIGIT THREE 3 3 3 DecimalDigitNumber U+000A6A ੪ GURMUKHI DIGIT FOUR 4 4 4 DecimalDigitNumber U+000A6B ੫ GURMUKHI DIGIT FIVE 5 5 5 DecimalDigitNumber U+000A6C ੬ GURMUKHI DIGIT SIX 6 6 6 DecimalDigitNumber U+000A6D ੭ GURMUKHI DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000A6E ੮ GURMUKHI DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000A6F ੯ GURMUKHI DIGIT NINE 9 9 9 DecimalDigitNumber U+000AE6 ૦ GUJARATI DIGIT ZERO 0 0 0 DecimalDigitNumber U+000AE7 ૧ GUJARATI DIGIT ONE 1 1 1 DecimalDigitNumber U+000AE8 ૨ GUJARATI DIGIT TWO 2 2 2 DecimalDigitNumber U+000AE9 ૩ GUJARATI DIGIT THREE 3 3 3 DecimalDigitNumber U+000AEA ૪ GUJARATI DIGIT FOUR 4 4 4 DecimalDigitNumber U+000AEB ૫ GUJARATI DIGIT FIVE 5 5 5 DecimalDigitNumber U+000AEC ૬ GUJARATI DIGIT SIX 6 6 6 DecimalDigitNumber U+000AED ૭ GUJARATI DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000AEE ૮ GUJARATI DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000AEF ૯ GUJARATI DIGIT NINE 9 9 9 DecimalDigitNumber U+000B66 ୦ ORIYA DIGIT ZERO 0 0 0 DecimalDigitNumber U+000B67 ୧ ORIYA DIGIT ONE 1 1 1 DecimalDigitNumber U+000B68 ୨ ORIYA DIGIT TWO 2 2 2 DecimalDigitNumber U+000B69 ୩ ORIYA DIGIT THREE 3 3 3 DecimalDigitNumber U+000B6A ୪ ORIYA DIGIT FOUR 4 4 4 DecimalDigitNumber U+000B6B ୫ ORIYA DIGIT FIVE 5 5 5 DecimalDigitNumber U+000B6C ୬ ORIYA DIGIT SIX 6 6 6 DecimalDigitNumber U+000B6D ୭ ORIYA DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000B6E ୮ ORIYA DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000B6F ୯ ORIYA DIGIT NINE 9 9 9 DecimalDigitNumber U+000B72 ୲ ORIYA FRACTION ONE QUARTER 0.25 -1 -1 OtherNumber U+000B73 ୳ ORIYA FRACTION ONE HALF 0.5 -1 -1 OtherNumber U+000B74 ୴ ORIYA FRACTION THREE QUARTERS 0.75 -1 -1 OtherNumber U+000B75 ୵ ORIYA FRACTION ONE SIXTEENTH 0.0625 -1 -1 OtherNumber U+000B76 ୶ ORIYA FRACTION ONE EIGHTH 0.125 -1 -1 OtherNumber U+000B77 ୷ ORIYA FRACTION THREE SIXTEENTHS 0.1875 -1 -1 OtherNumber U+000BE6 ௦ TAMIL DIGIT ZERO 0 0 0 DecimalDigitNumber U+000BE7 ௧ TAMIL DIGIT ONE 1 1 1 DecimalDigitNumber U+000BE8 ௨ TAMIL DIGIT TWO 2 2 2 DecimalDigitNumber U+000BE9 ௩ TAMIL DIGIT THREE 3 3 3 DecimalDigitNumber U+000BEA ௪ TAMIL DIGIT FOUR 4 4 4 DecimalDigitNumber U+000BEB ௫ TAMIL DIGIT FIVE 5 5 5 DecimalDigitNumber U+000BEC ௬ TAMIL DIGIT SIX 6 6 6 DecimalDigitNumber U+000BED ௭ TAMIL DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000BEE ௮ TAMIL DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000BEF ௯ TAMIL DIGIT NINE 9 9 9 DecimalDigitNumber U+000BF0 ௰ TAMIL NUMBER TEN 10 -1 -1 OtherNumber U+000BF1 ௱ TAMIL NUMBER ONE HUNDRED 100 -1 -1 OtherNumber U+000BF2 ௲ TAMIL NUMBER ONE THOUSAND 1000 -1 -1 OtherNumber U+000C66 ౦ TELUGU DIGIT ZERO 0 0 0 DecimalDigitNumber U+000C67 ౧ TELUGU DIGIT ONE 1 1 1 DecimalDigitNumber U+000C68 ౨ TELUGU DIGIT TWO 2 2 2 DecimalDigitNumber U+000C69 ౩ TELUGU DIGIT THREE 3 3 3 DecimalDigitNumber U+000C6A ౪ TELUGU DIGIT FOUR 4 4 4 DecimalDigitNumber U+000C6B ౫ TELUGU DIGIT FIVE 5 5 5 DecimalDigitNumber U+000C6C ౬ TELUGU DIGIT SIX 6 6 6 DecimalDigitNumber U+000C6D ౭ TELUGU DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000C6E ౮ TELUGU DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000C6F ౯ TELUGU DIGIT NINE 9 9 9 DecimalDigitNumber U+000C78 ౸ TELUGU FRACTION DIGIT ZERO FOR ODD POWERS OF FOUR 0 -1 -1 OtherNumber U+000C79 ౹ TELUGU FRACTION DIGIT ONE FOR ODD POWERS OF FOUR 1 -1 -1 OtherNumber U+000C7A ౺ TELUGU FRACTION DIGIT TWO FOR ODD POWERS OF FOUR 2 -1 -1 OtherNumber U+000C7B ౻ TELUGU FRACTION DIGIT THREE FOR ODD POWERS OF FOUR 3 -1 -1 OtherNumber U+000C7C ౼ TELUGU FRACTION DIGIT ONE FOR EVEN POWERS OF FOUR 1 -1 -1 OtherNumber U+000C7D ౽ TELUGU FRACTION DIGIT TWO FOR EVEN POWERS OF FOUR 2 -1 -1 OtherNumber U+000C7E ౾ TELUGU FRACTION DIGIT THREE FOR EVEN POWERS OF FOUR 3 -1 -1 OtherNumber U+000CE6 ೦ KANNADA DIGIT ZERO 0 0 0 DecimalDigitNumber U+000CE7 ೧ KANNADA DIGIT ONE 1 1 1 DecimalDigitNumber U+000CE8 ೨ KANNADA DIGIT TWO 2 2 2 DecimalDigitNumber U+000CE9 ೩ KANNADA DIGIT THREE 3 3 3 DecimalDigitNumber U+000CEA ೪ KANNADA DIGIT FOUR 4 4 4 DecimalDigitNumber U+000CEB ೫ KANNADA DIGIT FIVE 5 5 5 DecimalDigitNumber U+000CEC ೬ KANNADA DIGIT SIX 6 6 6 DecimalDigitNumber U+000CED ೭ KANNADA DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000CEE ೮ KANNADA DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000CEF ೯ KANNADA DIGIT NINE 9 9 9 DecimalDigitNumber U+000D58 ൘ MALAYALAM FRACTION ONE ONE-HUNDRED-AND-SIXTIETH 0.00625 -1 -1 OtherNumber U+000D59 ൙ MALAYALAM FRACTION ONE FORTIETH 0.025 -1 -1 OtherNumber U+000D5A ൚ MALAYALAM FRACTION THREE EIGHTIETHS 0.0375 -1 -1 OtherNumber U+000D5B ൛ MALAYALAM FRACTION ONE TWENTIETH 0.05 -1 -1 OtherNumber U+000D5C ൜ MALAYALAM FRACTION ONE TENTH 0.1 -1 -1 OtherNumber U+000D5D ൝ MALAYALAM FRACTION THREE TWENTIETHS 0.15 -1 -1 OtherNumber U+000D5E ൞ MALAYALAM FRACTION ONE FIFTH 0.2 -1 -1 OtherNumber U+000D66 ൦ MALAYALAM DIGIT ZERO 0 0 0 DecimalDigitNumber U+000D67 ൧ MALAYALAM DIGIT ONE 1 1 1 DecimalDigitNumber U+000D68 ൨ MALAYALAM DIGIT TWO 2 2 2 DecimalDigitNumber U+000D69 ൩ MALAYALAM DIGIT THREE 3 3 3 DecimalDigitNumber U+000D6A ൪ MALAYALAM DIGIT FOUR 4 4 4 DecimalDigitNumber U+000D6B ൫ MALAYALAM DIGIT FIVE 5 5 5 DecimalDigitNumber U+000D6C ൬ MALAYALAM DIGIT SIX 6 6 6 DecimalDigitNumber U+000D6D ൭ MALAYALAM DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000D6E ൮ MALAYALAM DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000D6F ൯ MALAYALAM DIGIT NINE 9 9 9 DecimalDigitNumber U+000D70 ൰ MALAYALAM NUMBER TEN 10 -1 -1 OtherNumber U+000D71 ൱ MALAYALAM NUMBER ONE HUNDRED 100 -1 -1 OtherNumber U+000D72 ൲ MALAYALAM NUMBER ONE THOUSAND 1000 -1 -1 OtherNumber U+000D73 ൳ MALAYALAM FRACTION ONE QUARTER 0.25 -1 -1 OtherNumber U+000D74 ൴ MALAYALAM FRACTION ONE HALF 0.5 -1 -1 OtherNumber U+000D75 ൵ MALAYALAM FRACTION THREE QUARTERS 0.75 -1 -1 OtherNumber U+000D76 ൶ MALAYALAM FRACTION ONE SIXTEENTH 0.0625 -1 -1 OtherNumber U+000D77 ൷ MALAYALAM FRACTION ONE EIGHTH 0.125 -1 -1 OtherNumber U+000D78 ൸ MALAYALAM FRACTION THREE SIXTEENTHS 0.1875 -1 -1 OtherNumber U+000DE6 ෦ SINHALA LITH DIGIT ZERO 0 0 0 DecimalDigitNumber U+000DE7 ෧ SINHALA LITH DIGIT ONE 1 1 1 DecimalDigitNumber U+000DE8 ෨ SINHALA LITH DIGIT TWO 2 2 2 DecimalDigitNumber U+000DE9 ෩ SINHALA LITH DIGIT THREE 3 3 3 DecimalDigitNumber U+000DEA ෪ SINHALA LITH DIGIT FOUR 4 4 4 DecimalDigitNumber U+000DEB ෫ SINHALA LITH DIGIT FIVE 5 5 5 DecimalDigitNumber U+000DEC ෬ SINHALA LITH DIGIT SIX 6 6 6 DecimalDigitNumber U+000DED ෭ SINHALA LITH DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000DEE ෮ SINHALA LITH DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000DEF ෯ SINHALA LITH DIGIT NINE 9 9 9 DecimalDigitNumber U+000E50 ๐ THAI DIGIT ZERO 0 0 0 DecimalDigitNumber U+000E51 ๑ THAI DIGIT ONE 1 1 1 DecimalDigitNumber U+000E52 ๒ THAI DIGIT TWO 2 2 2 DecimalDigitNumber U+000E53 ๓ THAI DIGIT THREE 3 3 3 DecimalDigitNumber U+000E54 ๔ THAI DIGIT FOUR 4 4 4 DecimalDigitNumber U+000E55 ๕ THAI DIGIT FIVE 5 5 5 DecimalDigitNumber U+000E56 ๖ THAI DIGIT SIX 6 6 6 DecimalDigitNumber U+000E57 ๗ THAI DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000E58 ๘ THAI DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000E59 ๙ THAI DIGIT NINE 9 9 9 DecimalDigitNumber U+000ED0 ໐ LAO DIGIT ZERO 0 0 0 DecimalDigitNumber U+000ED1 ໑ LAO DIGIT ONE 1 1 1 DecimalDigitNumber U+000ED2 ໒ LAO DIGIT TWO 2 2 2 DecimalDigitNumber U+000ED3 ໓ LAO DIGIT THREE 3 3 3 DecimalDigitNumber U+000ED4 ໔ LAO DIGIT FOUR 4 4 4 DecimalDigitNumber U+000ED5 ໕ LAO DIGIT FIVE 5 5 5 DecimalDigitNumber U+000ED6 ໖ LAO DIGIT SIX 6 6 6 DecimalDigitNumber U+000ED7 ໗ LAO DIGIT SEVEN 7 7 7 DecimalDigitNumber U+000ED8 ໘ LAO DIGIT EIGHT 8 8 8 DecimalDigitNumber U+000ED9 ໙ LAO DIGIT NINE 9 9 9 DecimalDigitNumber ... U+01F10B DINGBAT CIRCLED SANS-SERIF DIGIT ZERO 0 -1 -1 OtherNumber U+01F10C DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT ZERO 0 -1 -1 OtherNumber U+01FBF0 SEGMENTED DIGIT ZERO -1 -1 -1 DecimalDigitNumber U+01FBF1 SEGMENTED DIGIT ONE -1 -1 -1 DecimalDigitNumber U+01FBF2 SEGMENTED DIGIT TWO -1 -1 -1 DecimalDigitNumber U+01FBF3 SEGMENTED DIGIT THREE -1 -1 -1 DecimalDigitNumber U+01FBF4 SEGMENTED DIGIT FOUR -1 -1 -1 DecimalDigitNumber U+01FBF5 SEGMENTED DIGIT FIVE -1 -1 -1 DecimalDigitNumber U+01FBF6 SEGMENTED DIGIT SIX -1 -1 -1 DecimalDigitNumber U+01FBF7 SEGMENTED DIGIT SEVEN -1 -1 -1 DecimalDigitNumber U+01FBF8 SEGMENTED DIGIT EIGHT -1 -1 -1 DecimalDigitNumber U+01FBF9 SEGMENTED DIGIT NINE -1 -1 -1 DecimalDigitNumber
\d는 모든 유니코드를 검사하지만 [0-9]는 이 10자로 제한됩니다. 10자리만 사용하면 됩니다. 다른 사람들은 \d를 사용하는 것이 좋습니다. 적게 쓰기 때문에.
출처 : http:www.stackoverflow.com/questions/16621738/d-less-efficient-than-0-9