/// <summary>Stores the supplied arguments and capture information, returning the parsed expression.</summary>
private RegexTree Init(string pattern, RegexOptions options, TimeSpan matchTimeout, [NotNull] ref CultureInfo?culture)
{
this.pattern = pattern;
roptions = options;
internalMatchTimeout = matchTimeout;
culture ??= RegexParser.GetTargetCulture(options);
// Parse the pattern.
RegexTree tree = RegexParser.Parse(pattern, options, culture);
// Store the relevant information, constructing the appropriate factory.
capnames = tree.CaptureNameToNumberMapping;
capslist = tree.CaptureNames;
caps = tree.CaptureNumberSparseMapping;
capsize = tree.CaptureCount;
return(tree);
}
internal Regex(string pattern, RegexOptions options, TimeSpan matchTimeout, CultureInfo?culture)
{
culture ??= RegexParser.GetTargetCulture(options);
Init(pattern, options, matchTimeout, culture);
if ((options & RegexOptions.NonBacktracking) != 0)
{
// If we're in non-backtracking mode, create the appropriate factory.
factory = new SymbolicRegexRunnerFactory(_code, options, matchTimeout, culture);
_code = null;
}
else if (RuntimeFeature.IsDynamicCodeCompiled && UseOptionC())
{
// If the compile option is set and compilation is supported, then compile the code.
factory = Compile(pattern, _code, options, matchTimeout != InfiniteMatchTimeout);
_code = null;
}
}
protected internal override RegexRunner CreateInstance() => // Create a new interpreter instance. new RegexInterpreter(_code, RegexParser.GetTargetCulture(_code.Options));