fixed grammar to permit var-length nonnum chains (PolusAI#260)

Author: friskluft

src/nyx/strpat.cpp

@@ -223,7 +223,7 @@ bool StringPattern::tokenize (
 	std::vector<std::pair<std::string, std::string>> v
 	{
 		{ "[0-9]+" , t_NUM } ,
-		{ "[a-z]+|[A-Z]+" , t_TEXT },
+		{ "[a-z|A-Z]+" , t_TEXT },
 		{ "~|`|!|@|#|\\$|%|\\^|&|\\(|\\)|_|-|\\+|=|\\{|\\}|\\[|]|'|;|,|\\.", t_SEP },
 		{ "\\*", t_STAR }
 	};