// Test character classes.
[[:alnum:]][^[:lower:]A][_[:blank:]]
 /\/\/ aa_
\      aB_
 \     0B_
 /\/\/ asd
  \    00-
 /\/\/ AA_
   \   AB 
    \  aB	
 /\/\/ AA	
     \ 5+_
      \5+ 
 /\/\/ 5+-
      /55_
     / vC 
 /\/\/ vA 
    /  +  
   /   haha+ haha
 /\/\/ hahaa haha
  /    hahaB_haha
 /\/\/ hah@B_haha
 /     haha  haha
 /\/\/ hahaA-HAHA
/      hah4-_haha

// Test character classes.
[[:alnum:]][^[:lower:]A][_[:blank:]][[:punct:]]
 /\/\/ aa_.
\      aB_!
 \     0B_"
 /\/\/ asd#
  \    00 _
 /\/\/ AA_%
   \   AB ,
    \  aB	;
 /\/\/ AA	:
     \ 5+_'
      \5+ =
 /\/\/ 5+-}
      /55_^
     / vC ~
 /\/\/ vA |
    /  +A  *
   /   haha+ .haha
 /\/\/ hahaa .haha
  /    hahaB_.haha
 /\/\/ hah@B_.haha
 /     haha  .haha
 /\/\/ hahaA-.HAHA
/      hah4-_.haha

Add punctuation to testcase for character classes.
Add punctuation to testcase for character classes.
