drop named classes because of no new functionality

test.sh

@@ -14,12 +14,9 @@ abc+
 ([0-9]*)(?:([a-z]*)(?:[0-9]*))
 (?:)
 1?:
-\\\d+
-\\\s+
-\\\w+
-(\\\w+)\\\s+(\\\w+)
-(\\\S+)\\\s+(\\\D+)
-(([0-9]*)([a-z]*)\\\d*)
+[0-9]+
+[a-zA-Z0-9_]+
+(([0-9]*)([a-z]*)[a-zA-Z0-9_]*)
 [a]*
 ([yab]*)(e*)([cd])
 ([yab]*)(e*)([^y]?)$
@@ -64,10 +61,7 @@ abcccdef
 1234hello568
 1:
 123abc456
- 	123abc456
 123abc_456 abc
-ABC 	123hello456 abc
-ABC 	helloabc456 abc
 123hello456
 a
 xyac
@@ -113,10 +107,7 @@ expect="\
 (0,0)
 (0,2)
 (0,3)
-(0,2)
 (0,10)
-(0,16)(0,3)(5,16)
-(0,13)(0,3)(5,13)
 (0,11)(0,11)(0,3)(3,8)
 (0,1)
 (1,4)(1,3)(3,3)(3,4)