mirror of
https://github.com/kwsch/PKHeX
synced 2024-09-20 14:21:59 +00:00
1b294f7c97
* Split Gen1/2 string & pokelist conversion methods * Refactor pokelist to direct read/write, skip on save if blanked * Add settings editor for SaveLanguage overrides
258 lines
11 KiB
C#
258 lines
11 KiB
C#
using System;
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namespace PKHeX.Core;
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/// <summary>
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/// Logic for converting a <see cref="string"/> for Generation 1.
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/// </summary>
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/// <remarks>Slight differences when compared to <seealso cref="StringConverter2"/>.</remarks>
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public static class StringConverter1
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{
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public const byte TerminatorCode = 0x50;
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public const byte TerminatorZero = 0x00;
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public const byte TradeOTCode = 0x5D;
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public const byte SpaceCode = 0x7F;
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public const char Terminator = '\0';
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public const char TradeOT = '*';
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public static bool GetIsJapanese(ReadOnlySpan<char> str) => AllJapanese(str);
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private static bool AllJapanese(ReadOnlySpan<char> str)
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{
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foreach (var x in str)
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{
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if (!IsJapanese(x))
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return false;
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}
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return true;
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static bool IsJapanese(char c) => c is >= '\u3000' and <= '\u30FC';
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}
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public static bool GetIsEnglish(ReadOnlySpan<char> str) => !GetIsJapanese(str);
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public static bool GetIsJapanese(ReadOnlySpan<byte> raw) => AllCharsInTable(raw, TableJP);
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public static bool GetIsEnglish(ReadOnlySpan<byte> raw) => AllCharsInTable(raw, TableEN);
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private static bool AllCharsInTable(ReadOnlySpan<byte> data, ReadOnlySpan<char> table)
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{
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foreach (var c in data)
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{
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var b = table[c];
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if (b == Terminator && c is not (TerminatorCode or TerminatorZero))
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return false;
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}
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return true;
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}
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/// <summary>
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/// Checks if the input byte array is definitely of German origin (any ÄÖÜäöü)
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/// </summary>
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/// <param name="data">Raw string bytes</param>
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/// <returns>Indication if the data is from a definitely-german string</returns>
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public static bool IsG12German(ReadOnlySpan<byte> data)
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{
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foreach (var b in data)
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{
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if (IsGermanicGlyph(b))
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return true;
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}
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return false;
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}
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private static bool IsGermanicGlyph(byte b) => b - 0xC0u <= 6;
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private static bool IsGermanicGlyph(char c)
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{
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ulong i = c - (uint)'Ä';
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ulong shift = 0x8000208080002080ul << (int)i;
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ulong mask = i - 64;
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return (long)(shift & mask) < 0;
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}
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/// <summary>
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/// Checks if the input byte array is definitely of German origin (any ÄÖÜäöü)
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/// </summary>
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/// <param name="value">Input string</param>
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/// <returns>Indication if the data is from a definitely-german string</returns>
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public static bool IsG12German(ReadOnlySpan<char> value)
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{
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foreach (var c in value)
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{
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if (IsGermanicGlyph(c))
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return true;
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}
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return false;
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}
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/// <summary>
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/// Converts Generation 1 encoded data into a string.
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/// </summary>
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/// <param name="data">Encoded data.</param>
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/// <param name="jp">Data source is Japanese.</param>
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/// <returns>Decoded string.</returns>
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public static string GetString(ReadOnlySpan<byte> data, bool jp)
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{
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Span<char> result = stackalloc char[data.Length];
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int length = LoadString(data, result, jp);
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return new string(result[..length]);
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}
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/// <inheritdoc cref="GetString(ReadOnlySpan{byte},bool)"/>
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/// <param name="data">Encoded data</param>
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/// <param name="result">Decoded character result buffer</param>
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/// <param name="jp">Data source is Japanese.</param>
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/// <returns>Character count loaded.</returns>
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public static int LoadString(ReadOnlySpan<byte> data, Span<char> result, bool jp)
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{
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if (data.Length == 0)
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return 0;
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if (data[0] == TradeOTCode) // In-game Trade
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{
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result[0] = TradeOT;
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return 1;
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}
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int i = 0;
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var dict = jp ? TableJP : TableEN;
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for (; i < data.Length; i++)
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{
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var value = data[i];
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var c = dict[value];
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if (c == Terminator) // Stop if Terminator
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break;
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result[i] = c;
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}
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return i;
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}
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/// <summary>
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/// Converts a string to Generation 1 encoded data.
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/// </summary>
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/// <param name="destBuffer">Span of bytes to write encoded string data</param>
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/// <param name="value">Decoded string.</param>
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/// <param name="maxLength">Maximum length of the input <see cref="value"/></param>
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/// <param name="jp">Data destination is Japanese.</param>
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/// <param name="option">Buffer pre-formatting option</param>
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/// <returns>Encoded data.</returns>
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public static int SetString(Span<byte> destBuffer, ReadOnlySpan<char> value, int maxLength, bool jp,
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StringConverterOption option = StringConverterOption.Clear50)
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{
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if (option is StringConverterOption.ClearZero)
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destBuffer.Clear();
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else if (option is StringConverterOption.Clear50)
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destBuffer.Fill(TerminatorCode);
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else if (option is StringConverterOption.Clear7F)
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destBuffer.Fill(SpaceCode);
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if (value.Length == 0)
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return 0;
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if (value[0] == TradeOT) // Handle "[TRAINER]"
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{
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destBuffer[0] = TradeOTCode;
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destBuffer[1] = TerminatorCode;
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return 2;
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}
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if (value.Length > maxLength)
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value = value[..maxLength]; // Hard cap
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var dict = jp ? TableJP : TableEN;
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int i = 0;
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for (; i < value.Length; i++)
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{
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if (!TryGetIndex(dict, value[i], out var index))
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break;
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destBuffer[i] = index;
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}
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int count = i;
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if (count == destBuffer.Length)
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return count;
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destBuffer[count] = TerminatorCode;
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return count + 1;
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}
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private static bool TryGetIndex(in ReadOnlySpan<char> dict, char c, out byte result)
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{
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var index = dict.IndexOf(c);
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if (index == -1)
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return TryGetUserFriendlyRemap(dict, c, out result);
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// \0 shouldn't really be user-entered, but just in case
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result = (byte)index;
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return index != default;
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}
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// べ (U+3079), ぺ (U+307A), へ (U+3078), and り (U+308A)
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internal const string Hiragana = "べぺへり";
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/// <summary>
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/// Tries to remap the user input to a valid character.
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/// </summary>
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private static bool TryGetUserFriendlyRemap(in ReadOnlySpan<char> dict, char c, out byte result)
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{
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if (Hiragana.Contains(c))
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{
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int index = dict.IndexOf((char)(c + (char)0x60));
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result = (byte)index;
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return true; // Valid Hiragana will always be found if it's in the table
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}
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result = default;
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return false;
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}
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#region Gen 1 Character Tables
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internal const char NUL = Terminator;
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internal const char TOT = TradeOT;
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internal const char LPK = '{'; // Pk
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internal const char LMN = '}'; // Mn
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internal const char MNY = '¥'; // Yen
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internal const char LPO = '@'; // Po
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internal const char LKE = '#'; // Ke
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internal const char LEA = '%'; // é for Box
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public const char DOT = '․'; // . for MR.MIME (U+2024, not U+002E)
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internal const char SPF = ' '; // Full-width space (U+3000)
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public const char SPH = ' '; // Half-width space
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public static ReadOnlySpan<char> TableEN =>
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[
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 00-0F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 10-1F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 20-2F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 30-3F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 40-4F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, TOT, NUL, NUL, // 50-5F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 60-6F
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LPO, LKE, '“', '”', NUL, '…', NUL, NUL, NUL, '┌', '─', '┐', '│', '└', '┘', SPH, // 70-7F
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', // 80-8F
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'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '(', ')', ':', ';', '[', ']', // 90-9F
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', // A0-AF
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'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'à', 'è', 'é', 'ù', 'À', 'Á', // B0-BF
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'Ä', 'Ö', 'Ü', 'ä', 'ö', 'ü', 'È', 'É', 'Ì', 'Í', 'Ñ', 'Ò', 'Ó', 'Ù', 'Ú', 'á', // C0-CF
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'ì', 'í', 'ñ', 'ò', 'ó', 'ú', NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, '←', '\'', // D0-DF
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'’', LPK, LMN, '-', NUL, NUL, '?', '!', DOT, '&', LEA, '→', '▷', '▶', '▼', '♂', // E0-EF
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MNY, '×', '.', '/', ',', '♀', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', // F0-FF
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];
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public static ReadOnlySpan<char> TableJP =>
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[
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NUL, NUL, NUL, NUL, NUL, 'ガ', 'ギ', 'グ', 'ゲ', 'ゴ', 'ザ', 'ジ', 'ズ', 'ゼ', 'ゾ', 'ダ', // 00-0F
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'ヂ', 'ヅ', 'デ', 'ド', NUL, NUL, NUL, NUL, NUL, 'バ', 'ビ', 'ブ', 'ボ', NUL, NUL, NUL, // 10-1F
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NUL, NUL, NUL, NUL, NUL, NUL, 'が', 'ぎ', 'ぐ', 'げ', 'ご', 'ざ', 'じ', 'ず', 'ぜ', 'ぞ', // 20-2F
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'だ', 'ぢ', 'づ', 'で', 'ど', NUL, NUL, NUL, NUL, NUL, 'ば', 'び', 'ぶ', 'ベ', 'ぼ', NUL, // 30-3F
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'パ', 'ピ', 'プ', 'ポ', 'ぱ', 'ぴ', 'ぷ', 'ペ', 'ぽ', NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 40-4F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, TOT, NUL, NUL, // 50-5F
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NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, // 60-6F
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'「', '」', '『', '』', '・', '⋯', NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, NUL, SPF, // 70-7F
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'ア', 'イ', 'ウ', 'エ', 'オ', 'カ', 'キ', 'ク', 'ケ', 'コ', 'サ', 'シ', 'ス', 'セ', 'ソ', 'タ', // 80-8F
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'チ', 'ツ', 'テ', 'ト', 'ナ', 'ニ', 'ヌ', 'ネ', 'ノ', 'ハ', 'ヒ', 'フ', 'ホ', 'マ', 'ミ', 'ム', // 90-9F
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'メ', 'モ', 'ヤ', 'ユ', 'ヨ', 'ラ', 'ル', 'レ', 'ロ', 'ワ', 'ヲ', 'ン', 'ッ', 'ャ', 'ュ', 'ョ', // A0-AF
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'ィ', 'あ', 'い', 'う', 'え', 'お', 'か', 'き', 'く', 'け', 'こ', 'さ', 'し', 'す', 'せ', 'そ', // B0-BF
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'た', 'ち', 'つ', 'て', 'と', 'な', 'に', 'ぬ', 'ね', 'の', 'は', 'ひ', 'ふ', 'ヘ', 'ほ', 'ま', // C0-CF
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'み', 'む', 'め', 'も', 'や', 'ゆ', 'よ', 'ら', 'リ', 'る', 'れ', 'ろ', 'わ', 'を', 'ん', 'っ', // D0-DF
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'ゃ', 'ゅ', 'ょ', 'ー', 'ﾟ', 'ﾞ', '？', '！', '。', 'ァ', 'ゥ', 'ェ', NUL, NUL, NUL, '♂', // E0-EF
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MNY, NUL, '．', '／', 'ォ', '♀', '０', '１', '２', '３', '４', '５', '６', '７', '８', '９', // F0-FF
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];
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#endregion
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}
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