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Rework token building

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This commit is contained in:
Andrew Cooper
2022-02-11 08:19:02 +11:00
parent 3b42ffd18d
commit a7cedfbf7e
2 changed files with 50 additions and 36 deletions
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43
00_Common/dotnet/Games.Common/IO/Token.cs
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@@ -4,34 +4,41 @@ namespace Games.Common.IO
{
internal class Token
{
protected readonly StringBuilder _builder;
private int _trailingWhiteSpaceCount;
private readonly string _value;
private Token()
private Token(string value)
{
_builder = new StringBuilder();
_value = value;
}
public Token Append(char character)
public override string ToString() => _value;
internal class Builder
{
_builder.Append(character);
private readonly StringBuilder _builder = new();
private bool _isQuoted;
private int _trailingWhiteSpaceCount;
_trailingWhiteSpaceCount = char.IsWhiteSpace(character) ? _trailingWhiteSpaceCount + 1 : 0;
public Builder Append(char character)
{
_builder.Append(character);
return this;
}
_trailingWhiteSpaceCount = char.IsWhiteSpace(character) ? _trailingWhiteSpaceCount + 1 : 0;
public override string ToString() => _builder.ToString(0, _builder.Length - _trailingWhiteSpaceCount);
return this;
}
public static Token Create() => new();
public Builder SetIsQuoted()
{
_isQuoted = true;
return this;
}
public static Token CreateQuoted() => new QuotedToken();
public static implicit operator string(Token token) => token.ToString();
internal class QuotedToken : Token
{
public override string ToString() => _builder.ToString();
public Token Build()
{
if (!_isQuoted) { _builder.Length -= _trailingWhiteSpaceCount; }
return new Token(_builder.ToString());
}
}
}
}