public SimpleTextParser(IPunctuationContainer punctuationContainer)
{
if (punctuationContainer == null) throw new ArgumentNullException(nameof(punctuationContainer));
var punctConCopy = punctuationContainer.Clone() as IPunctuationContainer;
if (IsPunctuationInvalid(punctConCopy))
throw new FormatException("Punctuation must not contain spaces or be empty");
_punctuationContainer = punctConCopy;
// set _textParserRegex
var orderedSep = PunctuationContainer.SentencesSeparators.OrderByDescending(x => x.Length);
string sep1 = String.Join(@"|", orderedSep.Select(Regex.Escape).ToArray());
string pattern = $"(.+?({sep1}))(?=(\\s+|$))";
_textParserRegex = new Regex(pattern);
// set _sentenceParserRegex
string sep2 = String.Join(@"", orderedSep.Select(Regex.Escape).ToArray());
orderedSep = PunctuationContainer.SyntacticConstructionsSeparators.OrderByDescending(x => x.Length);
string sep3 = String.Join(@"|", orderedSep.Select(Regex.Escape).ToArray());
string sep4 = String.Join(@"", orderedSep.Select(Regex.Escape).ToArray());
pattern = $"(([^{sep4}{sep2}\\s]*[{sep2}]*[^{sep4}{sep2}\\s]+)|\\s+|{sep3}|{sep1})";
_sentenceParserRegex = new Regex(pattern);
// set _expressionParserRegex
pattern = $"(([^{sep4}{sep2}\\s]*[{sep2}]*[^{sep4}{sep2}\\s]+)|\\s+|{sep3}|{sep1})";
_expressionParserRegex = new Regex(pattern);
}
private static bool IsPunctuationInvalid(IPunctuationContainer punctuation)
{
return punctuation.SentencesSeparators.Any(sep => sep == String.Empty || sep.Contains(" ")) ||
punctuation.SyntacticConstructionsSeparators.Any(sep => sep == String.Empty || sep.Contains(" "));
}
