Jeremy Koritzinsky
8 years ago
committed by
GitHub
GitHub
17 changed files with 851 additions and 579 deletions
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using System; |
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using System.Globalization; |
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using static System.Char; |
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|
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namespace Avalonia.Utilities |
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{ |
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public struct StringTokenizer : IDisposable |
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{ |
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private const char DefaultSeparatorChar = ','; |
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private readonly string _s; |
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private readonly int _length; |
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private readonly char _separator; |
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private readonly string _exceptionMessage; |
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private readonly IFormatProvider _formatProvider; |
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private int _index; |
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private int _tokenIndex; |
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private int _tokenLength; |
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public StringTokenizer(string s, IFormatProvider formatProvider, string exceptionMessage = null) |
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: this(s, GetSeparatorFromFormatProvider(formatProvider), exceptionMessage) |
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{ |
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_formatProvider = formatProvider; |
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} |
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public StringTokenizer(string s, char separator = DefaultSeparatorChar, string exceptionMessage = null) |
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{ |
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_s = s ?? throw new ArgumentNullException(nameof(s)); |
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_length = s?.Length ?? 0; |
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_separator = separator; |
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_exceptionMessage = exceptionMessage; |
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_formatProvider = CultureInfo.InvariantCulture; |
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_index = 0; |
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_tokenIndex = -1; |
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_tokenLength = 0; |
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while (_index < _length && IsWhiteSpace(_s, _index)) |
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{ |
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_index++; |
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} |
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} |
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public string CurrentToken => _tokenIndex < 0 ? null : _s.Substring(_tokenIndex, _tokenLength); |
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public void Dispose() |
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{ |
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if (_index != _length) |
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{ |
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throw GetFormatException(); |
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} |
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} |
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|
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public bool TryReadInt32(out Int32 result, char? separator = null) |
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{ |
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var success = TryReadString(out var stringResult, separator); |
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result = success ? int.Parse(stringResult, _formatProvider) : 0; |
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return success; |
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} |
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public int ReadInt32(char? separator = null) |
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{ |
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if (!TryReadInt32(out var result, separator)) |
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{ |
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throw GetFormatException(); |
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} |
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return result; |
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} |
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public bool TryReadDouble(out double result, char? separator = null) |
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{ |
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var success = TryReadString(out var stringResult, separator); |
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result = success ? double.Parse(stringResult, _formatProvider) : 0; |
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return success; |
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} |
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public double ReadDouble(char? separator = null) |
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{ |
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if (!TryReadDouble(out var result, separator)) |
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{ |
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throw GetFormatException(); |
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} |
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return result; |
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} |
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public bool TryReadString(out string result, char? separator = null) |
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{ |
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var success = TryReadToken(separator ?? _separator); |
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result = CurrentToken; |
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return success; |
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} |
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|
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public string ReadString(char? separator = null) |
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{ |
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if (!TryReadString(out var result, separator)) |
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{ |
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throw GetFormatException(); |
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} |
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return result; |
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} |
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private bool TryReadToken(char separator) |
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{ |
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_tokenIndex = -1; |
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if (_index >= _length) |
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{ |
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return false; |
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} |
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var c = _s[_index]; |
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var index = _index; |
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var length = 0; |
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while (_index < _length) |
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{ |
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c = _s[_index]; |
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if (IsWhiteSpace(c) || c == separator) |
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{ |
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break; |
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} |
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_index++; |
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length++; |
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} |
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SkipToNextToken(separator); |
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_tokenIndex = index; |
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_tokenLength = length; |
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if (_tokenLength < 1) |
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{ |
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throw GetFormatException(); |
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} |
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return true; |
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} |
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private void SkipToNextToken(char separator) |
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{ |
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if (_index < _length) |
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{ |
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var c = _s[_index]; |
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if (c != separator && !IsWhiteSpace(c)) |
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{ |
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throw GetFormatException(); |
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} |
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var length = 0; |
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while (_index < _length) |
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{ |
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c = _s[_index]; |
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if (c == separator) |
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{ |
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length++; |
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_index++; |
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if (length > 1) |
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{ |
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throw GetFormatException(); |
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} |
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} |
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else |
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{ |
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if (!IsWhiteSpace(c)) |
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{ |
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break; |
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} |
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_index++; |
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} |
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} |
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if (length > 0 && _index >= _length) |
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{ |
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throw GetFormatException(); |
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} |
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} |
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} |
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private FormatException GetFormatException() => |
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_exceptionMessage != null ? new FormatException(_exceptionMessage) : new FormatException(); |
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private static char GetSeparatorFromFormatProvider(IFormatProvider provider) |
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{ |
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var c = DefaultSeparatorChar; |
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var formatInfo = NumberFormatInfo.GetInstance(provider); |
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if (formatInfo.NumberDecimalSeparator.Length > 0 && c == formatInfo.NumberDecimalSeparator[0]) |
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{ |
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c = ';'; |
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} |
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return c; |
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} |
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} |
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} |
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File diff suppressed because it is too large
@ -0,0 +1,224 @@ |
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using System; |
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using System.Reflection; |
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using System.Collections.Generic; |
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namespace Avalonia.Media |
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{ |
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internal static class KnownColors |
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{ |
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private static readonly IReadOnlyDictionary<string, KnownColor> _knownColorNames; |
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private static readonly IReadOnlyDictionary<uint, string> _knownColors; |
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private static readonly Dictionary<KnownColor, ISolidColorBrush> _knownBrushes; |
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static KnownColors() |
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{ |
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var knownColorNames = new Dictionary<string, KnownColor>(StringComparer.OrdinalIgnoreCase); |
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var knownColors = new Dictionary<uint, string>(); |
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foreach (var field in typeof(KnownColor).GetRuntimeFields()) |
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{ |
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if (field.FieldType != typeof(KnownColor)) continue; |
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var knownColor = (KnownColor)field.GetValue(null); |
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if (knownColor == KnownColor.None) continue; |
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knownColorNames.Add(field.Name, knownColor); |
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// some known colors have the same value, so use the first
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if (!knownColors.ContainsKey((uint)knownColor)) |
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{ |
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knownColors.Add((uint)knownColor, field.Name); |
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} |
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} |
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_knownColorNames = knownColorNames; |
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_knownColors = knownColors; |
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_knownBrushes = new Dictionary<KnownColor, ISolidColorBrush>(); |
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} |
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public static ISolidColorBrush GetKnownBrush(string s) |
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{ |
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var color = GetKnownColor(s); |
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return color != KnownColor.None ? color.ToBrush() : null; |
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} |
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public static KnownColor GetKnownColor(string s) |
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{ |
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if (_knownColorNames.TryGetValue(s, out var color)) |
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{ |
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return color; |
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} |
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return KnownColor.None; |
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} |
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public static string GetKnownColorName(uint rgb) |
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{ |
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return _knownColors.TryGetValue(rgb, out var name) ? name : null; |
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} |
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public static Color ToColor(this KnownColor color) |
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{ |
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return Color.FromUInt32((uint)color); |
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} |
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public static ISolidColorBrush ToBrush(this KnownColor color) |
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{ |
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lock (_knownBrushes) |
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{ |
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if (!_knownBrushes.TryGetValue(color, out var brush)) |
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{ |
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brush = new Immutable.ImmutableSolidColorBrush(color.ToColor()); |
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_knownBrushes.Add(color, brush); |
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} |
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return brush; |
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} |
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} |
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} |
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internal enum KnownColor : uint |
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{ |
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None, |
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AliceBlue = 0xfff0f8ff, |
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AntiqueWhite = 0xfffaebd7, |
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Aqua = 0xff00ffff, |
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Aquamarine = 0xff7fffd4, |
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Azure = 0xfff0ffff, |
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Beige = 0xfff5f5dc, |
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Bisque = 0xffffe4c4, |
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Black = 0xff000000, |
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BlanchedAlmond = 0xffffebcd, |
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Blue = 0xff0000ff, |
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BlueViolet = 0xff8a2be2, |
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Brown = 0xffa52a2a, |
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BurlyWood = 0xffdeb887, |
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CadetBlue = 0xff5f9ea0, |
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Chartreuse = 0xff7fff00, |
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Chocolate = 0xffd2691e, |
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Coral = 0xffff7f50, |
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CornflowerBlue = 0xff6495ed, |
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Cornsilk = 0xfffff8dc, |
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Crimson = 0xffdc143c, |
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Cyan = 0xff00ffff, |
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DarkBlue = 0xff00008b, |
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DarkCyan = 0xff008b8b, |
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DarkGoldenrod = 0xffb8860b, |
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DarkGray = 0xffa9a9a9, |
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DarkGreen = 0xff006400, |
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DarkKhaki = 0xffbdb76b, |
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DarkMagenta = 0xff8b008b, |
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DarkOliveGreen = 0xff556b2f, |
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DarkOrange = 0xffff8c00, |
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DarkOrchid = 0xff9932cc, |
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DarkRed = 0xff8b0000, |
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DarkSalmon = 0xffe9967a, |
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DarkSeaGreen = 0xff8fbc8f, |
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DarkSlateBlue = 0xff483d8b, |
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DarkSlateGray = 0xff2f4f4f, |
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DarkTurquoise = 0xff00ced1, |
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DarkViolet = 0xff9400d3, |
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DeepPink = 0xffff1493, |
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DeepSkyBlue = 0xff00bfff, |
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DimGray = 0xff696969, |
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DodgerBlue = 0xff1e90ff, |
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Firebrick = 0xffb22222, |
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FloralWhite = 0xfffffaf0, |
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ForestGreen = 0xff228b22, |
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Fuchsia = 0xffff00ff, |
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Gainsboro = 0xffdcdcdc, |
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GhostWhite = 0xfff8f8ff, |
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Gold = 0xffffd700, |
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Goldenrod = 0xffdaa520, |
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Gray = 0xff808080, |
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Green = 0xff008000, |
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GreenYellow = 0xffadff2f, |
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Honeydew = 0xfff0fff0, |
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HotPink = 0xffff69b4, |
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IndianRed = 0xffcd5c5c, |
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Indigo = 0xff4b0082, |
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Ivory = 0xfffffff0, |
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Khaki = 0xfff0e68c, |
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Lavender = 0xffe6e6fa, |
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LavenderBlush = 0xfffff0f5, |
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LawnGreen = 0xff7cfc00, |
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LemonChiffon = 0xfffffacd, |
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LightBlue = 0xffadd8e6, |
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LightCoral = 0xfff08080, |
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LightCyan = 0xffe0ffff, |
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LightGoldenrodYellow = 0xfffafad2, |
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LightGreen = 0xff90ee90, |
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LightGray = 0xffd3d3d3, |
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LightPink = 0xffffb6c1, |
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LightSalmon = 0xffffa07a, |
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LightSeaGreen = 0xff20b2aa, |
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LightSkyBlue = 0xff87cefa, |
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LightSlateGray = 0xff778899, |
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LightSteelBlue = 0xffb0c4de, |
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LightYellow = 0xffffffe0, |
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Lime = 0xff00ff00, |
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LimeGreen = 0xff32cd32, |
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Linen = 0xfffaf0e6, |
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Magenta = 0xffff00ff, |
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Maroon = 0xff800000, |
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MediumAquamarine = 0xff66cdaa, |
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MediumBlue = 0xff0000cd, |
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MediumOrchid = 0xffba55d3, |
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MediumPurple = 0xff9370db, |
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MediumSeaGreen = 0xff3cb371, |
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MediumSlateBlue = 0xff7b68ee, |
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MediumSpringGreen = 0xff00fa9a, |
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MediumTurquoise = 0xff48d1cc, |
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MediumVioletRed = 0xffc71585, |
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MidnightBlue = 0xff191970, |
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MintCream = 0xfff5fffa, |
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MistyRose = 0xffffe4e1, |
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Moccasin = 0xffffe4b5, |
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NavajoWhite = 0xffffdead, |
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Navy = 0xff000080, |
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OldLace = 0xfffdf5e6, |
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Olive = 0xff808000, |
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OliveDrab = 0xff6b8e23, |
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Orange = 0xffffa500, |
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OrangeRed = 0xffff4500, |
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Orchid = 0xffda70d6, |
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PaleGoldenrod = 0xffeee8aa, |
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PaleGreen = 0xff98fb98, |
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PaleTurquoise = 0xffafeeee, |
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PaleVioletRed = 0xffdb7093, |
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PapayaWhip = 0xffffefd5, |
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PeachPuff = 0xffffdab9, |
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Peru = 0xffcd853f, |
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Pink = 0xffffc0cb, |
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Plum = 0xffdda0dd, |
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PowderBlue = 0xffb0e0e6, |
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Purple = 0xff800080, |
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Red = 0xffff0000, |
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RosyBrown = 0xffbc8f8f, |
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RoyalBlue = 0xff4169e1, |
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SaddleBrown = 0xff8b4513, |
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Salmon = 0xfffa8072, |
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SandyBrown = 0xfff4a460, |
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SeaGreen = 0xff2e8b57, |
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SeaShell = 0xfffff5ee, |
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Sienna = 0xffa0522d, |
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Silver = 0xffc0c0c0, |
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SkyBlue = 0xff87ceeb, |
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SlateBlue = 0xff6a5acd, |
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SlateGray = 0xff708090, |
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Snow = 0xfffffafa, |
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SpringGreen = 0xff00ff7f, |
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SteelBlue = 0xff4682b4, |
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Tan = 0xffd2b48c, |
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Teal = 0xff008080, |
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Thistle = 0xffd8bfd8, |
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Tomato = 0xffff6347, |
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Transparent = 0x00ffffff, |
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Turquoise = 0xff40e0d0, |
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Violet = 0xffee82ee, |
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Wheat = 0xfff5deb3, |
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White = 0xffffffff, |
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WhiteSmoke = 0xfff5f5f5, |
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Yellow = 0xffffff00, |
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YellowGreen = 0xff9acd32 |
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} |
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} |
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