Crashes with current dump

[p-sodmann]

The Parser crashes if I try to parse a current dump of wiktionary.

Full output:

PronounParser: contains parenthesis welcher

PronounParser: contains parenthesis welcher

PronounParser: contains parenthesis welcher

PronounParser: contains parenthesis welcher

NounParser: contains parenthesis: Zeche

VerbSchwachUntrennbarParser: Flexion:sperbern parsing arguments, possible empty parameter

Error Verb Flexparser: Flexion:wohltun, wohltue
ich tu

AdjectiveFlexParser: No definition block: Flexion:heben/Gerundivum

Unbehandelte Ausnahme: System.InvalidOperationException: Die Sequenz enthält keine Elemente.

bei System.Linq.Enumerable.First[TSource](IEnumerable`1 source)

bei IWNLP.Parser.FlexParser.VerbFlexParser.Parse(String word, String[] text) in C:\works\tools\iwnlp\IWNLP\IWNLP.Parser\FlexParser\VerbFlexParser.cs:Zeile 28.

bei IWNLP.Parser.WiktionaryParser.ParseText(String word, String textInput, Int32 wikiID) in C:\works\tools\iwnlp\IWNLP\IWNLP.Parser\WiktionaryParser.cs:Zeile 95.

bei IWNLP.Parser.Program.Main(String[] args) in C:\works\tools\iwnlp\IWNLP\IWNLP.Parser\Program.cs:Zeile 50.

[Liebeck]

I added some exception handling to prevent further crashes. With the current dump, there are 3 unit tests failing but I don't have time to fix them right now. Pull requests are welcome ;-)

[p-sodmann]

Thank you for fixing the bug.