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add node type

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Nitload
2026-02-02 00:38:15 +08:00
parent c056938e7c
commit 73b222bbc6
1 changed files with 48 additions and 62 deletions
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StgSharp.RegularAnalysis/RegulartMachine/Node.Char.cs
+48 -62
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@@ -1,9 +1,9 @@
//----------------------------------------------------------------------- //-----------------------------------------------------------------------
// ----------------------------------------------------------------------- // -----------------------------------------------------------------------
// file="RegularExpression.Node.Char" // file="Node.Char"
// Project: StgSharp // Project: StgSharp
// AuthorGroup: Nitload // AuthorGroup: Nitload Space
// Copyright (c) Nitload. All rights reserved. // Copyright (c) Nitload Space. All rights reserved.
// //
// Permission is hereby granted, free of charge, to any person obtaining a copy // Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal // of this software and associated documentation files (the "Software"), to deal
@@ -34,74 +34,60 @@ using System.Text;
using System.Threading.Tasks; using System.Threading.Tasks;
namespace StgSharp.RegularAnalysis namespace StgSharp.RegularAnalysis
{ {
internal class RegularExpressionCharNode : RegularStateNode internal class RegularExpressionEpsilonNode : RegularStateNode
{
}
internal class RegularExpressionCharNode : RegularStateNode
{
private char _char;
public RegularExpressionCharNode(char c)
{ {
_char = c;
private char _char;
public RegularExpressionCharNode(
char c
)
{
_char = c;
}
public override NodeType Type => NodeType.CHAR;
public override bool IsValidateFrom(
RegularStateNode former,
RegularContext context
)
{
int pos = context.Position;
char c = context.CurrentCharSpan[pos + 1];
return c == _char;
}
} }
internal class RegularExpressionCharsetNode : RegularStateNode public override NodeType Type => NodeType.CHAR;
public override bool IsValidateFrom(RegularStateNode former, RegularContext context)
{ {
int pos = context.Position;
char c = context.CurrentCharSpan[pos + 1];
return c == _char;
}
private bool _isNegated; }
private HashSet<char> _charset;
public RegularExpressionCharsetNode( internal class RegularExpressionCharsetNode : RegularStateNode
IEnumerable<char> charset, {
bool isNegated = false
)
{
_charset = new(charset);
_isNegated = isNegated;
}
public RegularExpressionCharsetNode( private bool _isNegated;
ReadOnlySpan<char> charset, private HashSet<char> _charset;
bool isNegated = false
)
{
_charset = new(charset.Length);
foreach (char item in _charset) {
_charset.Add(item);
}
_isNegated = isNegated;
}
public override NodeType Type => NodeType.CHARSET; public RegularExpressionCharsetNode(IEnumerable<char> charset, bool isNegated = false)
{
_charset = new(charset);
_isNegated = isNegated;
}
public override bool IsValidateFrom( public RegularExpressionCharsetNode(ReadOnlySpan<char> charset, bool isNegated = false)
RegularStateNode former, {
RegularContext context _charset = new(charset.Length);
) _isNegated = isNegated;
{ }
int pos = context.Position;
char c = context.CurrentCharSpan[pos + 1];
bool contains = _charset.Contains(c);
return _isNegated ? !contains : contains;
}
public override NodeType Type => NodeType.CHARSET;
public override bool IsValidateFrom(RegularStateNode former, RegularContext context)
{
int pos = context.Position;
char c = context.CurrentCharSpan[pos + 1];
bool contains = _charset.Contains(c);
return _isNegated ? !contains : contains;
}
} }
} }