fix regressions on a[^b]*c cases

test.sh

@@ -92,6 +92,10 @@ abc\\\\>
 [-+]?\\\\<(0[xX][0-9a-fA-FUL]+|[0-9.]{1,}[0-9eEfFuULl]+|[0-9]+)\\\\>
 [-+]?\\\\<(0[xX][0-9a-fA-FUL]+|[0-9.]{1,}[0-9eEfFuULl]+|[0-9]+)\\\\>
 qwerty.*$
+([a-zA-Z0-9_][^1]*[a-zA-Z0-9_])|(\\\\\$([^\$]+)\\\\\$)
+([a-zA-Z0-9_][^1]*[a-zA-Z0-9_])|(\\\\\$([^\$]+)\\\\\$)
+(h[^1]*b)|(\\\\\$([^\$]+)\\\\\$)
+(h[^1]*b)|(\\\\\$([^\$]+)\\\\\$)
 "
 input="\
 abcdef
@@ -185,6 +189,10 @@ world
  x37247
   124435.7727ULL
  jjdfjk sjdjjsqwerty jdfjdfhhdhfdjjjfj jjjdf
+$\"},  /* email */
+$\"},  /* email */$
+$  hbbbb
+$ hsdhs $ 
 "
 expect="\
 (0,3)
@@ -278,6 +286,10 @@ expect="\
 -nomatch-
 (2,16)(2,16)
 (14,44)
+(9,14)(9,14)(?,?)(?,?)
+(0,18)(?,?)(0,18)(1,17)
+(3,8)(3,8)(?,?)(?,?)
+(0,9)(?,?)(0,9)(1,8)
 (0,0)
 "