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regex ir opt code on rewrite

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This commit is contained in:
Youmu Liu
2026-06-25 19:52:11 +08:00
parent 45f9b04b6d
commit 5cd2b8b4ba
7 changed files with 281 additions and 185 deletions
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StgSharp.RegularAnalysis/Text/RegexIR.cs
+49 -17
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@@ -37,16 +37,34 @@ namespace StgSharp.RegularAnalysis.Text
internal enum RegexIRCommand
{
Match_Seq = 0,
Match_Set = 1,
Condition = 3,
Try = 4,
Count = 5,
Count_Seq = 6,
Count_Set = 7,
Pop = 8,
Pack = 9,
Find_Seq = 10,
Match_Seq = 1 << 0,
Match_Set = 1 << 1,
Condition = 1 << 2,
Try = 1 << 3,
Count_Complex = 1 << 4,
Count_Seq = 1 << 5,
Count_Set = 1 << 6,
Pop = 1 << 7,
Pack = 1 << 8,
Find_Seq = 1 << 9,
Match = Match_Seq | Match_Set,
Count = Count_Seq | Count_Set | Count_Complex,
}
internal interface IRegexCount
{
bool IsGreedy { get; }
bool IsStar { get; }
bool IsPlus { get; }
int Min { get; }
int Max { get; }
}
@@ -163,29 +181,33 @@ namespace StgSharp.RegularAnalysis.Text
}
internal sealed class RegexCountIR(
internal sealed class RegexCountComplexIR(
int min,
int max,
bool isGreedy,
int operation
) : RegexIR
) : RegexIR, IRegexCount
{
public bool IsGreedy { get; } = isGreedy;
public bool IsStar => Min == 0 && Max < 0;
public bool IsPlus => Min == 1 && Max < 0;
public int Min { get; } = min;
public int Max { get; } = max;
public int OperationIndex { get; } = operation;
public int OperationCount { get; } = operation;
internal override RegexIRCommand Command { get; } = RegexIRCommand.Count;
internal override RegexIRCommand Command { get; } = RegexIRCommand.Count_Complex;
internal override string AsCommand(
int lineNum
)
{
return $"[{lineNum}]\t COUNT {(IsGreedy ? "GREEDY" : "NON_GREEDY")} MIN: {Min} MAX: {Max} OPERATION: {OperationIndex}";
return $"[{lineNum}]\t COUNT {(IsGreedy ? "GREEDY" : "NON_GREEDY")} MIN: {Min} MAX: {Max} OPERATION: {OperationCount}";
}
}
@@ -195,11 +217,15 @@ namespace StgSharp.RegularAnalysis.Text
int max,
bool isGreedy,
string seq
) : RegexIR
) : RegexIR, IRegexCount
{
public bool IsGreedy { get; } = isGreedy;
public bool IsStar => Min == 0 && Max < 0;
public bool IsPlus => Min == 1 && Max < 0;
public int Min { get; } = min;
public int Max { get; } = max;
@@ -222,11 +248,17 @@ namespace StgSharp.RegularAnalysis.Text
int max,
bool isGreedy,
string set
) : RegexIR
) : RegexIR, IRegexCount
{
public bool IsGreedy { get; } = isGreedy;
public bool IsDotStar => CharSet == "." && Min == 0 && Max < 0;
public bool IsStar => Min == 0 && Max < 0;
public bool IsPlus => Min == 1 && Max < 0;
public int Min { get; } = min;
public int Max { get; } = max;