From 7e3e79d0833953f8243e304a86a96b7e41a310a6 Mon Sep 17 00:00:00 2001 From: nobu Date: Thu, 1 Apr 2010 05:30:25 +0000 Subject: * enc/utf_16{be,le}.c (utf16{be,le}_mbc_to_code): simplified. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- enc/utf_16be.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'enc/utf_16be.c') diff --git a/enc/utf_16be.c b/enc/utf_16be.c index d6e2c953b7..1e33c2ec7d 100644 --- a/enc/utf_16be.c +++ b/enc/utf_16be.c @@ -108,9 +108,8 @@ utf16be_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED, OnigCodePoint code; if (UTF16_IS_SURROGATE_FIRST(*p)) { - code = ((((p[0] - 0xd8) << 2) + ((p[1] & 0xc0) >> 6) + 1) << 16) - + ((((p[1] & 0x3f) << 2) + (p[2] - 0xdc)) << 8) - + p[3]; + code = ((((p[0] << 8) + p[1]) & 0x03ff) << 10) + + (((p[2] << 8) + p[3]) & 0x03ff) + 0x10000; } else { code = p[0] * 256 + p[1]; -- cgit v1.2.3