public static async Task <Regex> GetRegexAsync(RegexEngine engine, string pattern, RegexOptions?options = null, TimeSpan?matchTimeout = null)
{
if (options is null)
{
Assert.Null(matchTimeout);
}
switch (engine)
{
case RegexEngine.Interpreter:
return
(options is null ? new Regex(pattern) :
matchTimeout is null ? new Regex(pattern, options.Value) :
new Regex(pattern, options.Value, matchTimeout.Value));
case RegexEngine.Compiled:
return
(options is null ? new Regex(pattern, RegexOptions.Compiled) :
matchTimeout is null ? new Regex(pattern, options.Value | RegexOptions.Compiled) :
new Regex(pattern, options.Value | RegexOptions.Compiled, matchTimeout.Value));
case RegexEngine.SourceGenerated:
return(await RegexGeneratorHelper.SourceGenRegexAsync(pattern, options, matchTimeout));
}
throw new ArgumentException($"Unknown engine: {engine}");
}
public static async Task <Regex> GetRegexAsync(RegexEngine engine, [StringSyntax(StringSyntaxAttribute.Regex)] string pattern, RegexOptions options, Globalization.CultureInfo culture)
{
if (engine == RegexEngine.SourceGenerated)
{
return(await RegexGeneratorHelper.SourceGenRegexAsync(pattern, culture, options));
}
using (new System.Tests.ThreadCultureChange(culture))
{
return(await GetRegexAsync(engine, pattern, options));
}
}
