private Regex tryCompileRegex()
{
if (SearchType.regex == searchType)
{
if (String.Empty == regexPattern)
{
this.warn("Regex is empty");
return(null);
}
return(tryCompileRegex(regexPattern, regexOptions));
}
if (SearchType.boolean == searchType)
{
if (String.IsNullOrWhiteSpace(booleanPattern))
{
this.warn("Boolean expression is empty");
return(null);
}
String convertedRegexPattern = BooleanExpressions.combined(BooleanExpressions.bifurcated(SimpleExpressions.tokenised(booleanPattern)));
return(tryCompileRegex(convertedRegexPattern, RegexOptions.IgnoreCase | RegexOptions.Singleline));
}
if (SearchType.simple == searchType)
{
if (String.IsNullOrWhiteSpace(simplePattern))
{
this.warn("Simple expression is empty");
return(null);
}
String convertedRegexPattern = SimpleExpressions.joined(SimpleExpressions.tokenised(simplePattern));
return(tryCompileRegex(convertedRegexPattern, RegexOptions.IgnoreCase | RegexOptions.Singleline));
}
return(null);
}
public static String combined(IEnumerable <String[]> thisStringArrayIEnumerable)
{
return(String.Format("({0})", String.Join(@"|", thisStringArrayIEnumerable.Select(a => SimpleExpressions.joined(a)))));
}