* string.c: New static function rb_str_ascii_casemap; special-casing

  :ascii option in rb_str_upcase_bang and rb_str_downcase_bang.
* regenc.c: Fix a bug (wrong use of unnecessary slack at end of string).
* regenc.h -> include/ruby/oniguruma.h: Move declaration of
  onigenc_ascii_only_case_map so that it is visible in string.c.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55329 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 3 deletions

diff --git a/regenc.c b/regenc.c
index abc0c029c8..d345b0f8d5 100644
--- a/regenc.c
+++ b/regenc.c
@@ -968,9 +968,7 @@ onigenc_ascii_only_case_map (OnigCaseFoldType* flagP, const OnigUChar** pp, cons
   OnigCaseFoldType flags = *flagP;
   int codepoint_length;
 
-  to_end -= 4; /* longest possible length of a single character */
-
-  while (*pp<end && to<=to_end) {
+  while (*pp<end && to<to_end) {
     codepoint_length = ONIGENC_PRECISE_MBC_ENC_LEN(enc, *pp, end);
     if (codepoint_length < 0)
       return codepoint_length; /* encoding invalid */