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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-08 16:08:50 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-08 16:08:50 +0000 |
commit | 6db9e77e64d41da7080b937322775813c58ba72e (patch) | |
tree | 6c43d39af7bb7bbe0d9ac69e7621d2f3801ba4bc /enc | |
parent | fbe9c1026d4b4ef9a1f115c928a84962b31b1270 (diff) | |
download | ruby-6db9e77e64d41da7080b937322775813c58ba72e.tar.gz |
* enc/trans/utf_16_32.erb.c (fun_so_from_utf_32le): implemented.
(fun_so_to_utf_32le): implemented.
[ruby-dev:35777]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18447 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'enc')
-rw-r--r-- | enc/trans/utf_16_32.erb.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/enc/trans/utf_16_32.erb.c b/enc/trans/utf_16_32.erb.c index 2cf7560b4e..86f1ed4727 100644 --- a/enc/trans/utf_16_32.erb.c +++ b/enc/trans/utf_16_32.erb.c @@ -170,12 +170,55 @@ fun_so_to_utf_32be(rb_transcoding* t, const unsigned char* s, size_t l, unsigned static int fun_so_from_utf_32le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o) { - return 1; + if (!s[2]) { + if (s[1]==0 && s[0]<0x80) { + o[0] = s[0]; + return 1; + } + else if (s[1]<0x08) { + o[0] = 0xC0 | (s[1]<<2) | (s[0]>>6); + o[1] = 0x80 | (s[0]&0x3F); + return 2; + } + else { + o[0] = 0xE0 | (s[1]>>4); + o[1] = 0x80 | ((s[1]&0x0F)<<2) | (s[0]>>6); + o[2] = 0x80 | (s[0]&0x3F); + return 3; + } + } + else { + o[0] = 0xF0 | (s[2]>>2); + o[1] = 0x80 | ((s[2]&0x03)<<4) | (s[1]>>4); + o[2] = 0x80 | ((s[1]&0x0F)<<2) | (s[0]>>6); + o[3] = 0x80 | (s[0]&0x3F); + return 4; + } } static int fun_so_to_utf_32le(rb_transcoding* t, const unsigned char* s, size_t l, unsigned char* o) { + o[3] = 0; + if (!(s[0]&0x80)) { + o[2] = o[1] = 0x00; + o[0] = s[0]; + } + else if ((s[0]&0xE0)==0xC0) { + o[2] = 0x00; + o[1] = (s[0]>>2)&0x07; + o[0] = ((s[0]&0x03)<<6) | (s[1]&0x3F); + } + else if ((s[0]&0xF0)==0xE0) { + o[2] = 0x00; + o[1] = (s[0]<<4) | ((s[1]>>2)^0x20); + o[0] = (s[1]<<6) | (s[2]^0x80); + } + else { + o[2] = ((s[0]&0x07)<<2) | ((s[1]>>4)&0x03); + o[1] = ((s[1]&0x0F)<<4) | ((s[2]>>2)&0x0F); + o[0] = ((s[2]&0x03)<<6) | (s[3]&0x3F); + } return 4; } |