mirror of
https://github.com/Facepunch/sbox-public.git
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71f266059a
This commit imports the C# engine code and game files, excluding C++ source code. [Source-Commit: ceb3d758046e50faa6258bc3b658a30c97743268]
108 lines
4.0 KiB
C#
108 lines
4.0 KiB
C#
// RichTextKit
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// Copyright © 2019-2020 Topten Software. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this product except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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namespace Topten.RichTextKit
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{
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/// <summary>
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/// Helper for looking up unicode character class information
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/// </summary>
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internal static class UnicodeClasses
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{
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static UnicodeClasses()
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{
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// Load trie resources
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_bidiTrie = new UnicodeTrie( typeof( LineBreaker ).Assembly.GetManifestResourceStream( "Topten.RichTextKit.Resources.BidiClasses.trie" ) );
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_classesTrie = new UnicodeTrie( typeof( LineBreaker ).Assembly.GetManifestResourceStream( "Topten.RichTextKit.Resources.LineBreakClasses.trie" ) );
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_boundaryTrie = new UnicodeTrie( typeof( LineBreaker ).Assembly.GetManifestResourceStream( "Topten.RichTextKit.Resources.WordBoundaryClasses.trie" ) );
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_graphemeTrie = new UnicodeTrie( typeof( LineBreaker ).Assembly.GetManifestResourceStream( "Topten.RichTextKit.Resources.GraphemeClusterClasses.trie" ) );
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}
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static UnicodeTrie _bidiTrie;
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static UnicodeTrie _classesTrie;
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static UnicodeTrie _boundaryTrie;
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static UnicodeTrie _graphemeTrie;
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/// <summary>
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/// Get the directionality of a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's directionality</returns>
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public static Directionality Directionality( int codePoint )
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{
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return (Directionality)(_bidiTrie.Get( codePoint ) >> 24);
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}
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/// <summary>
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/// Get the directionality of a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's directionality</returns>
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public static uint BidiData( int codePoint )
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{
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return _bidiTrie.Get( codePoint );
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}
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/// <summary>
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/// Get the bracket type for a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's paired bracked type</returns>
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public static PairedBracketType PairedBracketType( int codePoint )
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{
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return (PairedBracketType)((_bidiTrie.Get( codePoint ) >> 16) & 0xFF);
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}
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/// <summary>
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/// Get the associated bracket type for a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's opposite bracket, or 0 if not a bracket</returns>
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public static int AssociatedBracket( int codePoint )
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{
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return (int)(_bidiTrie.Get( codePoint ) & 0xFFFF);
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}
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/// <summary>
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/// Get the line break class for a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's line break class</returns>
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public static LineBreakClass LineBreakClass( int codePoint )
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{
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return (LineBreakClass)_classesTrie.Get( codePoint );
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}
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/// <summary>
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/// Get the line break class for a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's line break class</returns>
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public static WordBoundaryClass BoundaryGroup( int codePoint )
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{
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return (WordBoundaryClass)_boundaryTrie.Get( codePoint );
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}
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/// <summary>
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/// Get the grapheme cluster class for a Unicode Code Point
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/// </summary>
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/// <param name="codePoint">The code point in question</param>
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/// <returns>The code point's grapheme cluster class</returns>
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public static GraphemeClusterClass GraphemeClusterClass( int codePoint )
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{
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return (GraphemeClusterClass)_graphemeTrie.Get( codePoint );
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}
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}
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}
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