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refactor(PlossParser): 优化正则匹配逻辑避免重复匹配

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2026-07-06 09:09:33 +08:00
parent d4ea6b454f
commit 440088648b
1 changed files with 35 additions and 27 deletions
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62
src/WCTDataMiner.Core/Parsers/PlossParser.cs
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@@ -29,47 +29,55 @@ public class PlossParser : IParser<PlossRecord>
RegexOptions.Compiled
);
/// <summary>
/// 匹配类型枚举
/// </summary>
public enum MatchType { None, Header, Fod, Legacy }
/// <summary>
/// 单次匹配结果（避免重复正则匹配）
/// </summary>
public (MatchType Type, Match Match) TryMatch(string line)
{
var headerMatch = HeaderPattern.Match(line);
if (headerMatch.Success)
return (MatchType.Header, headerMatch);
var fodMatch = FodPattern.Match(line);
if (fodMatch.Success)
return (MatchType.Fod, fodMatch);
var legacyMatch = LegacyPattern.Match(line);
if (legacyMatch.Success)
return (MatchType.Legacy, legacyMatch);
return (MatchType.None, Match.Empty);
}
/// <summary>
/// 判断是否可以解析该行（任意一行）
/// </summary>
public bool CanParse(string line) =>
HeaderPattern.IsMatch(line) || FodPattern.IsMatch(line) || LegacyPattern.IsMatch(line);
public bool CanParse(string line) => TryMatch(line).Type != MatchType.None;
/// <summary>
/// 判断是否为多行记录的起始行（header行）
/// </summary>
public bool IsMultiLineStart(string line) => HeaderPattern.IsMatch(line);
public bool IsMultiLineStart(string line) => TryMatch(line).Type == MatchType.Header;
/// <summary>
/// 单行解析（兼容旧格式）
/// </summary>
public ParseResult<PlossRecord> Parse(string line, Guid scenarioId)
{
// 尝试匹配旧格式
var legacyMatch = LegacyPattern.Match(line);
if (legacyMatch.Success)
{
return ParseLegacyFormat(legacyMatch, scenarioId);
}
var (type, match) = TryMatch(line);
// 尝试匹配第二行（新格式）
var fodMatch = FodPattern.Match(line);
if (fodMatch.Success)
return type switch
{
return ParseFodLine(fodMatch, scenarioId);
}
// 尝试匹配第一行
var headerMatch = HeaderPattern.Match(line);
if (headerMatch.Success)
{
return ParseHeaderLine(headerMatch, scenarioId);
}
return ParseResult<PlossRecord>.Failure(
"FORMAT_MISMATCH",
"Line does not match Ploss pattern"
);
MatchType.Legacy => ParseLegacyFormat(match, scenarioId),
MatchType.Fod => ParseFodLine(match, scenarioId),
MatchType.Header => ParseHeaderLine(match, scenarioId),
_ => ParseResult<PlossRecord>.Failure("FORMAT_MISMATCH", "Line does not match Ploss pattern")
};
}
/// <summary>
@@ -77,7 +85,7 @@ public class PlossParser : IParser<PlossRecord>
/// </summary>
public ParseResult<PlossRecord>? ParseMultiLine(string[] lines, Guid scenarioId)
{
if (lines.Length < 2)
if (lines.Length < 2 || lines[0] == null || lines[1] == null)
return null;
var headerMatch = HeaderPattern.Match(lines[0].Trim());