Convert core (except toke.c) to use isFOO_utf8_safe()

The previous commit added this feature; now this commit uses it in core.
toke.c is deferred to the next commit to aid in possible future
bisecting, because some of the changes there seem somewhat more likely
to expose bugs.

1 files changed, 8 insertions, 3 deletions

diff --git a/pp_pack.c b/pp_pack.c
index a75229acca..ee4c69e0ae 100644
--- a/pp_pack.c
+++ b/pp_pack.c
@@ -1073,9 +1073,14 @@ S_unpack_rec(pTHX_ tempsym_t* symptr, const char *s, const char *strbeg, const c
 		/* 'A' strips both nulls and spaces */
 		const char *ptr;
 		if (utf8 && (symptr->flags & FLAG_WAS_UTF8)) {
-		    for (ptr = s+len-1; ptr >= s; ptr--)
-			if (*ptr != 0 && !UTF8_IS_CONTINUATION(*ptr) &&
-			    !isSPACE_utf8(ptr)) break;
+                    for (ptr = s+len-1; ptr >= s; ptr--) {
+                        if (   *ptr != 0
+                            && !UTF8_IS_CONTINUATION(*ptr)
+                            && !isSPACE_utf8_safe(ptr, strend))
+                        {
+                            break;
+                        }
+                    }
 		    if (ptr >= s) ptr += UTF8SKIP(ptr);
 		    else ptr++;
 		    if (ptr > s+len)