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Use ASCII as display text for "TAG" characters at U+E0000.

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This commit is contained in:
GoldenCrystal
2017-06-25 20:09:54 +02:00
parent 642b675b3d
commit d65f7f0a77
7 changed files with 36 additions and 21 deletions
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UnicodeInformation/UnicodeCharInfo.cs
+1 -1
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@@ -14,7 +14,7 @@ namespace System.Unicode
private readonly int codePoint;
/// <summary>The name of the code point.</summary>
private readonly string name;
private readonly int unicodeCharacterDataIndex;
internal readonly int unicodeCharacterDataIndex;
private readonly int unihanCharacterDataIndex;
private readonly string block;
UnicodeInformation/UnicodeInfo.cs
+16 -9
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@@ -2,6 +2,7 @@
using System.IO;
using System.IO.Compression;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text;
namespace System.Unicode
@@ -420,25 +421,31 @@ namespace System.Unicode
/// <summary>Gets a display text for the specified code point.</summary>
/// <param name="charInfo">The information for the code point.</param>
/// <returns>A display text for the code point, which may be the representation of the code point itself.</returns>
public static string GetDisplayText(UnicodeCharInfo charInfo)
{
if (charInfo.CodePoint <= 0x0020) return ((char)(0x2400 + charInfo.CodePoint)).ToString();
else if (charInfo.Category == UnicodeCategory.NonSpacingMark) return "\u25CC" + char.ConvertFromUtf32(charInfo.CodePoint);
else if (charInfo.CodePoint >= 0xD800 && charInfo.CodePoint <= 0xDFFF) return "\xFFFD";
else return char.ConvertFromUtf32(charInfo.CodePoint);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GetDisplayText(this UnicodeCharInfo charInfo)
=> GetDisplayText(charInfo.CodePoint, charInfo.unicodeCharacterDataIndex);
/// <summary>Gets a display text for the specified code point.</summary>
/// <param name="codePoint">The Unicode code point, for which a display text should be returned.</param>
/// <returns>A display text for the code point, which may be the representation of the code point itself.</returns>
public static string GetDisplayText(int codePoint)
{
if (codePoint <= 0x0020) return ((char)(0x2400 + codePoint)).ToString();
else if (GetCategory(codePoint) == UnicodeCategory.NonSpacingMark) return "\u25CC" + char.ConvertFromUtf32(codePoint);
if (codePoint <= 0x0020) return ((char)(0x2400 + codePoint)).ToString(); // Provide a display text for control characters, including space.
else if (GetCategory(codePoint) == UnicodeCategory.NonSpacingMark) return "\u25CC" + char.ConvertFromUtf32(codePoint);
else if (codePoint >= 0xD800 && codePoint <= 0xDFFF) return "\xFFFD";
else if (codePoint >= 0xE0020 && codePoint < 0xE007F) return char.ConvertFromUtf32(codePoint - 0xE0000); // Handle "TAG" ASCII subset by remapping it to regular ASCII
else return char.ConvertFromUtf32(codePoint);
}
private static string GetDisplayText(int codePoint, int unicodeCharacterDataIndex)
{
if (codePoint <= 0x0020) return ((char)(0x2400 + codePoint)).ToString(); // Provide a display text for control characters, including space.
else if (GetUnicodeCharacterData(unicodeCharacterDataIndex).Category == UnicodeCategory.NonSpacingMark) return "\u25CC" + char.ConvertFromUtf32(codePoint);
else if (codePoint >= 0xD800 && codePoint <= 0xDFFF) return "\xFFFD";
else if (codePoint >= 0xE0020 && codePoint < 0xE007F) return char.ConvertFromUtf32(codePoint - 0xE0000); // Handle "TAG" ASCII subset by remapping it to regular ASCII
else return char.ConvertFromUtf32(codePoint);
}
/// <summary>Gets the name of the specified code point.</summary>
/// <remarks>
/// The name referred to is the unicode Name property.