Fix broken charclass handling

Add setlocale LC_CTYPE

usr.bin/tr/str.c

@@ -151,17 +151,29 @@ typedef struct {
 } CLASS;
 
 static CLASS classes[] = {
+#undef isalnum
 	{ "alnum",  isalnum,  },
+#undef isalpha
 	{ "alpha",  isalpha,  },
+#undef isblank
 	{ "blank",  isblank,  },
+#undef iscntrl
 	{ "cntrl",  iscntrl,  },
+#undef isdigit
 	{ "digit",  isdigit,  },
+#undef isgraph
 	{ "graph",  isgraph,  },
+#undef islower
 	{ "lower",  islower,  },
+#undef isprint
 	{ "print",  isprint,  },
+#undef ispunct
 	{ "punct",  ispunct,  },
+#undef isspace
 	{ "space",  isspace,  },
+#undef isupper
 	{ "upper",  isupper,  },
+#undef isxdigit
 	{ "xdigit", isxdigit, },
 };
 
@@ -279,9 +291,6 @@ genseq(s)
 	s->state = s->cnt ? SEQUENCE : INFINITE;
 }
 
-/* Use the #defines isXXX() here, DON'T use them above. */
-#include <ctype.h>
-
 /*
  * Translate \??? into a character.  Up to 3 octal digits, if no digits either
  * an escape code or a literal character.

usr.bin/tr/tr.c

@@ -41,6 +41,7 @@ static char copyright[] =
 static char sccsid[] = "@(#)tr.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
 
+#include <locale.h>
 #include <sys/types.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -96,6 +97,8 @@ main(argc, argv)
 	register int ch, cnt, lastch, *p;
 	int cflag, dflag, sflag, isstring2;
 
+	(void) setlocale(LC_CTYPE, "");
+
 	cflag = dflag = sflag = 0;
 	while ((ch = getopt(argc, argv, "cds")) != EOF)
 		switch((char)ch) {