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SimpleAutomata.cs
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using System;
using System.Collections.Generic;
using System.Linq;
/////////////////////////////////////////////////////////////////////////////
// author : CretaPark ([email protected])
// SimpleAutomata.cs
/////////////////////////////////////////////////////////////////////////////
namespace UInput
{
public class SimpleAutomata
{
public const char UNDERBAR_IDLE = '＿';
private enum EndUpStyle { none, endUp, alone }
/// <summary>
/// 자음, 모음 집합을 구현하기 위한 구조체입니다.
/// </summary>
private struct GlyphInfo {
/// <summary>
/// 0x3131로부터 상대적인 위치
/// </summary>
public uint index;
/// <summary>
/// 범위를 기준으로 하는 상대위치
/// </summary>
public uint globalIndex;
/// <summary>
/// 조립이 가능한 글자 집합
/// </summary>
public string constructGlyphs;
public EndUpStyle endUpStyle;
public GlyphInfo(uint index, uint globalIndex)
{
this.index = index;
this.globalIndex = globalIndex;
constructGlyphs = null;
endUpStyle = EndUpStyle.none;
}
public GlyphInfo(uint index, uint globalIndex, EndUpStyle endUpStyle)
{
this.index = index;
this.globalIndex = globalIndex;
constructGlyphs = null;
this.endUpStyle = endUpStyle;
}
public GlyphInfo(uint index, uint globalIndex, string constructGlyphs)
{
this.index = index;
this.globalIndex = globalIndex;
this.constructGlyphs = constructGlyphs;
endUpStyle = EndUpStyle.none;
}
}
private enum AutomataScope { idle, first, second, last }
/// <summary>
/// 현재 오토마타를 보여줍니다.
/// </summary>
public static char buildResult { get; private set; }
/// <summary>
/// 현재 오토마타가 조합되고 있는 상태인 지 알려줍니다.
/// </summary>
public static bool isBuilding { get {
return characterHistory.Count != 0;
} }
/// <summary>
/// 오토마타를 포함하지 않는 현재 만들어진 텍스트입니다.
/// </summary>
public static string currentText = "";
/// <summary>
/// 오토마타가 초성, 중성, 종성인 지 가리키는 플래그입니다.
/// </summary>
private static AutomataScope currentScope;
/// <summary>
/// 오토마타 상태에서 되돌리기를 사용할 때 이용하는 목록입니다.
/// </summary>
private static List<char> characterHistory = new List<char>();
/// <summary>
/// 오토마타 상태에서 되돌리기를 사용할 때 이용하는 목록입니다.
/// </summary>
private static List<AutomataScope> scopeHistory = new List<AutomataScope>();
/// <summary>
/// 자음 집합입니다.
/// </summary>
private static readonly Dictionary<char, GlyphInfo> Consonant = new Dictionary<char, GlyphInfo>() {
{ 'ㄱ', new GlyphInfo(0, 0 , "ㄱㅅ" )},
{ 'ㄲ', new GlyphInfo(1, 1 )},
{ 'ㄳ', new GlyphInfo(2, 0 )},
{ 'ㄴ', new GlyphInfo(3, 2 , "ㅈㅎ" )},
{ 'ㄵ', new GlyphInfo(4, 0 )},
{ 'ㄶ', new GlyphInfo(5, 0 )},
{ 'ㄷ', new GlyphInfo(6, 3 , "ㄷ" )},
{ 'ㄸ', new GlyphInfo(7, 4 , EndUpStyle.endUp)},
{ 'ㄹ', new GlyphInfo(8, 5 , "ㄱㅁㅂㅅㅌㅍㅎ")},
{ 'ㄺ', new GlyphInfo(9, 0 )},
{ 'ㄻ', new GlyphInfo(10, 0 )},
{ 'ㄼ', new GlyphInfo(11, 0 )},
{ 'ㄽ', new GlyphInfo(12, 0 )},
{ 'ㄾ', new GlyphInfo(13, 0 )},
{ 'ㄿ', new GlyphInfo(14, 0 )},
{ 'ㅀ', new GlyphInfo(15, 0 )},
{ 'ㅁ', new GlyphInfo(16, 6 , EndUpStyle.alone)},
{ 'ㅂ', new GlyphInfo(17, 7 , "ㅂㅅ" )},
{ 'ㅃ', new GlyphInfo(18, 8 , EndUpStyle.endUp)},
{ 'ㅄ', new GlyphInfo(19, 0 )},
{ 'ㅅ', new GlyphInfo(20, 9 , "ㅅ" )},
{ 'ㅆ', new GlyphInfo(21, 10 )},
{ 'ㅇ', new GlyphInfo(22, 11 , EndUpStyle.alone)},
{ 'ㅈ', new GlyphInfo(23, 12 , "ㅈ" )},
{ 'ㅉ', new GlyphInfo(24, 13 , EndUpStyle.endUp)},
{ 'ㅊ', new GlyphInfo(25, 14 , EndUpStyle.alone)},
{ 'ㅋ', new GlyphInfo(26, 15 , EndUpStyle.alone)},
{ 'ㅌ', new GlyphInfo(27, 16 , EndUpStyle.alone)},
{ 'ㅍ', new GlyphInfo(28, 17 , EndUpStyle.alone)},
{ 'ㅎ', new GlyphInfo(29, 18 , EndUpStyle.alone)}
};
/// <summary>
/// 모음 집합입니다.
/// </summary>
private static readonly Dictionary<char, GlyphInfo> Vowel = new Dictionary<char, GlyphInfo>() {
{ 'ㅏ', new GlyphInfo(0, 0, "ㅣㅏ" )},
{ 'ㅐ', new GlyphInfo(1, 0 )},
{ 'ㅑ', new GlyphInfo(2, 1, "ㅣ" )},
{ 'ㅒ', new GlyphInfo(3, 0 )},
{ 'ㅓ', new GlyphInfo(4, 2, "ㅣㅓ" )},
{ 'ㅔ', new GlyphInfo(5, 0 )},
{ 'ㅕ', new GlyphInfo(6, 3, "ㅣ" )},
{ 'ㅖ', new GlyphInfo(7, 0 )},
{ 'ㅗ', new GlyphInfo(8, 4, "ㅏㅐㅣㅗ")},
{ 'ㅘ', new GlyphInfo(9, 0, "ㅣ" )},
{ 'ㅙ', new GlyphInfo(10, 0 )},
{ 'ㅚ', new GlyphInfo(11, 0 )},
{ 'ㅛ', new GlyphInfo(12, 5 )},
{ 'ㅜ', new GlyphInfo(13, 6, "ㅓㅔㅣㅜ")},
{ 'ㅝ', new GlyphInfo(14, 0, "ㅣ" )},
{ 'ㅞ', new GlyphInfo(15, 0 )},
{ 'ㅟ', new GlyphInfo(16, 0 )},
{ 'ㅠ', new GlyphInfo(17, 7 )},
{ 'ㅡ', new GlyphInfo(18, 8, "ㅣ" )},
{ 'ㅢ', new GlyphInfo(19, 0 )},
{ 'ㅣ', new GlyphInfo(20, 9 )}
};
/// <summary>
/// 오토마타로 만들어지는 글리프를 되돌리거나 텍스트에서 문자를 제거합니다.
/// </summary>
public static bool UndoAutomata(){
buildResult = UNDERBAR_IDLE;
if (characterHistory.Count > 0) {
if (Consonant.ContainsKey(characterHistory[characterHistory.Count - 1])) {
uint glyph = characterHistory[characterHistory.Count - 1];
GlyphInfo data = Consonant[Convert.ToChar(glyph)];
if (data.constructGlyphs == null &&
data.endUpStyle != EndUpStyle.alone) {
while (data.constructGlyphs == null)
data = Consonant[Convert.ToChar(--glyph)];
characterHistory[characterHistory.Count - 1] = Convert.ToChar(glyph);
buildResult = BuildGlyph(characterHistory);
return true;
}
} else if (Vowel.ContainsKey(characterHistory[characterHistory.Count - 1])) {
uint glyph = characterHistory[characterHistory.Count - 1];
GlyphInfo data = Vowel[Convert.ToChar(glyph)];
if (data.constructGlyphs == null) {
while (data.constructGlyphs == null ||
(data.constructGlyphs != null && data.constructGlyphs.Length <= 1))
data = Vowel[Convert.ToChar(--glyph)];
characterHistory[characterHistory.Count - 1] = Convert.ToChar(glyph);
buildResult = BuildGlyph(characterHistory);
return true;
}
}
characterHistory.RemoveAt(characterHistory.Count - 1);
scopeHistory.RemoveAt(scopeHistory.Count - 1);
currentScope = scopeHistory.Count > 0 ? scopeHistory[scopeHistory.Count - 1] : AutomataScope.idle;
buildResult = BuildGlyph(characterHistory);
} else if (currentText.Length > 1) {
currentText = currentText.Remove(currentText.Length - 1);
} else
currentText = "";
return false;
}
/// <summary>
/// 자음 또는 모음인 글자를 오토마타에 적용합니다.
/// </summary>
/// <param name="glyph">자음 또는 모음인 글자</param>
/// <exception cref="Exception">글자가 자음/모음이 아닌 문자</exception>
public static void PushAutomata(char glyph)
{
if (glyph == ' ' || glyph == '_' || glyph == '＿') {
if (characterHistory.Count != 0)
EscapeGlyph();
else
currentText += " ";
return;
}
uint scope = Convert.ToUInt32(glyph);
if (scope < 0x3131 || scope > 0x3163)
throw new Exception("악");
scope -= 0x3131;
uint cacheGlyph;
switch (currentScope) {
default:
case AutomataScope.idle:
if (Consonant.ContainsKey(glyph)) {
characterHistory.Clear();
scopeHistory.Clear();
characterHistory.Add(glyph);
scopeHistory.Add(currentScope = AutomataScope.first);
}
break;
case AutomataScope.first:
if (characterHistory.Count != 1)
goto default;
if (Vowel.ContainsKey(glyph)) {
characterHistory.Add(glyph);
scopeHistory.Add(currentScope = AutomataScope.second);
} else if (Consonant.ContainsKey(glyph)) {
if (Consonant[characterHistory[0]]
.constructGlyphs == null) {
EscapeGlyph(glyph);
} else if (Consonant[characterHistory[0]]
.constructGlyphs.Contains(glyph)) {
cacheGlyph = Convert.ToUInt32(characterHistory[0])
+ (uint)Consonant[characterHistory[0]]
.constructGlyphs.IndexOf(glyph)
+ 1;
characterHistory[0] = Convert.ToChar(cacheGlyph);
} else {
EscapeGlyph(glyph);
}
} else {
EscapeGlyph(glyph);
}
break;
case AutomataScope.second:
if (characterHistory.Count != 2)
goto default;
if (Consonant.ContainsKey(glyph)) {
characterHistory.Add(glyph);
scopeHistory.Add(currentScope = AutomataScope.last);
} else if (Vowel.ContainsKey(glyph)) {
if (Vowel[characterHistory[1]]
.constructGlyphs == null) {
EscapeGlyph();
} else if (Vowel[characterHistory[1]]
.constructGlyphs.Contains(glyph)) {
cacheGlyph = Convert.ToUInt32(characterHistory[1])
+ (uint)Vowel[characterHistory[1]]
.constructGlyphs.IndexOf(glyph)
+ 1;
characterHistory[1] = Convert.ToChar(cacheGlyph);
} else {
EscapeGlyph();
}
} else {
EscapeGlyph();
}
break;
case AutomataScope.last:
if (characterHistory.Count != 3)
goto default;
if (Vowel.ContainsKey(glyph)) {
EscapeGlyph(glyph);
} else if (Consonant.ContainsKey(glyph)) {
if (Consonant[characterHistory[2]]
.constructGlyphs == null) {
EscapeGlyph(glyph);
} else if (Consonant[characterHistory[2]]
.constructGlyphs.Contains(glyph)) {
cacheGlyph = Convert.ToUInt32(characterHistory[2])
+ (uint)Consonant[characterHistory[2]]
.constructGlyphs.IndexOf(glyph)
+ 1;
if (Consonant[Convert.ToChar(cacheGlyph)].endUpStyle
== EndUpStyle.endUp) {
UndoAutomata();
EscapeGlyph();
characterHistory.Clear();
characterHistory.Add(Convert.ToChar(cacheGlyph));
scopeHistory.Clear();
scopeHistory.Add(currentScope = AutomataScope.first);
} else
characterHistory[2] = Convert.ToChar(cacheGlyph);
} else {
EscapeGlyph(glyph);
}
}
break;
}
buildResult = BuildGlyph(characterHistory);
}
[Obsolete("사용 안할 지 고민 중...")]
public static void PushAutomata(string glyph)
=> PushAutomata(glyph[0]);
/// <summary>
/// 오토마타 스코프에 잡힌 문자에서 탈출합니다.
/// </summary>
public static void EscapeGlyph()
{
char build = BuildGlyph(characterHistory);
if (build != '\0')
currentText += build;
characterHistory.Clear();
scopeHistory.Clear();
scopeHistory.Add(currentScope = AutomataScope.idle);
buildResult = UNDERBAR_IDLE;
}
/// <summary>
/// 오토마타 스코프 글자에서 만약 <paramref name="castChar"/>이 모음이거나 이중 자음이지만,
/// <para>한 글자에 있는 것이 불가능한 경우, 마지막 문자를 가져와 다음 오토마타를 만들어 붙이고 탈출합니다.</para>
/// </summary>
/// <param name="castChar">다음 오토마타에 붙일 새 문자</param>
private static void EscapeGlyph(char castChar)
{
//if (characterHistory.Count <= 2) return;
if (Vowel.ContainsKey(castChar)) {
char lastIndex = characterHistory[characterHistory.Count - 1];
if (UndoAutomata()) {
GlyphInfo data = Consonant[characterHistory[characterHistory.Count - 1]];
lastIndex = data.constructGlyphs[(int)Consonant[lastIndex].index - (int)data.index - 1];
}
EscapeGlyph();
characterHistory.Add(lastIndex);
scopeHistory.Add(currentScope = AutomataScope.first);
} else {
EscapeGlyph();
scopeHistory.Add(currentScope = AutomataScope.idle);
}
PushAutomata(castChar);
}
/// <summary>
/// 오토마타에서 글자로 조립합니다.
/// </summary>
/// <param name="characterHistory">조립 할 오토마타 기록 리스트</param>
/// <returns></returns>
private static char BuildGlyph(List<char> characterHistory)
{
if (characterHistory.Count == 0)
return '\0';
if (characterHistory.Count == 1)
return characterHistory[0];
uint glyph = 0xAC00
+ 0x24C
* Consonant[characterHistory[0]].globalIndex;
glyph += 0x1C
* Vowel[characterHistory[1]].index;
if (characterHistory.Count == 2)
return Convert.ToChar(glyph);
uint indexValue = Consonant[characterHistory[2]].index;
if (indexValue > Consonant['ㅉ'].index)
indexValue -= 3;
else if (indexValue > Consonant['ㅃ'].index)
indexValue -= 2;
else if (indexValue > Consonant['ㄸ'].index)
indexValue--;
glyph += indexValue + 1;
return Convert.ToChar(glyph);
}
}
}