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* 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
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3 changed files with 8 additions and 6 deletions
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Thu Apr 1 14:30:16 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* enc/utf_16{be,le}.c (utf16{be,le}_mbc_to_code): simplified.
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Thu Apr 1 14:07:51 2010 NARUSE, Yui <naruse@ruby-lang.org>
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* util.c (BSD__hdtoa): don't use C99 macros. (FP_NORMAL etc)
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@ -108,9 +108,8 @@ utf16be_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED,
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OnigCodePoint code;
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if (UTF16_IS_SURROGATE_FIRST(*p)) {
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code = ((((p[0] - 0xd8) << 2) + ((p[1] & 0xc0) >> 6) + 1) << 16)
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+ ((((p[1] & 0x3f) << 2) + (p[2] - 0xdc)) << 8)
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+ p[3];
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code = ((((p[0] << 8) + p[1]) & 0x03ff) << 10)
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+ (((p[2] << 8) + p[3]) & 0x03ff) + 0x10000;
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}
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else {
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code = p[0] * 256 + p[1];
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@ -102,9 +102,8 @@ utf16le_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED,
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UChar c1 = *(p+1);
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if (UTF16_IS_SURROGATE_FIRST(c1)) {
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code = ((((c1 - 0xd8) << 2) + ((c0 & 0xc0) >> 6) + 1) << 16)
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+ ((((c0 & 0x3f) << 2) + (p[3] - 0xdc)) << 8)
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+ p[2];
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code = ((((c1 << 8) + c0) & 0x03ff) << 10)
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+ (((p[3] << 8) + p[2]) & 0x03ff) + 0x10000;
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}
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else {
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code = c1 * 256 + p[0];
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