🚀 go-pugleaf

GNU grep does not treat the underscore as an alphabetic character because
<ctype.h> does not consider it as such.  This can be most annoying when
grepping for identifiers which have underscores in them.

Below is a context diff to dfa.h that fixes this problem.

	Roy Binz
	Solbourne Computer, Longmont, Colorado
	Domain: reb@Solbourne.COM, UUCP: {boulder,sun}!stan!reb
	Phone : 303-678-4307

------Cut Here-----
------- dfa.h -------
*** /tmp/da3205	Fri Jan 12 12:01:43 1990
--- dfa.h	Fri Jan 12 11:51:32 1990
***************
*** 129,136 ****
  #define ISALPHA(c) isalpha(c)
  #define ISUPPER(C) isupper(c)
  #else
! #define ISALNUM(c) (isascii(c) && isalnum(c))
! #define ISALPHA(c) (isascii(c) && isalpha(c))
  #define ISUPPER(c) (isascii(c) && isupper(c))
  #endif
  
--- 129,136 ----
  #define ISALPHA(c) isalpha(c)
  #define ISUPPER(C) isupper(c)
  #else
! #define ISALNUM(c) ((isascii(c) && isalnum(c)) || (c) == '_')
! #define ISALPHA(c) ((isascii(c) && isalpha(c)) || (c) == '_')
  #define ISUPPER(c) (isascii(c) && isupper(c))
  #endif
  
***************
*** 143,150 ****
  
  extern char *bcopy(), *bzero();
  
! #define ISALNUM(c) (isascii(c) && isalnum(c))
! #define ISALPHA(c) (isascii(c) && isalpha(c))
  
  #endif /* ! __STDC__ */
  
--- 143,151 ----
  
  extern char *bcopy(), *bzero();
  
! #define ISALNUM(c) ((isascii(c) && isalnum(c)) || (c) == '_')
! #define ISALPHA(c) ((isascii(c) && isalpha(c)) || (c) == '_')
! #define ISUPPER(c) (isascii(c) && isupper(c))
  
  #endif /* ! __STDC__ */
  
--
	Roy Binz
	Solbourne Computer, Longmont, Colorado
	Domain: reb@Solbourne.COM, UUCP: {boulder,sun}!stan!reb
	Phone : 303-678-4307