diff options
author | redpony <redpony@ec762483-ff6d-05da-a07a-a48fb63a330f> | 2010-08-11 02:37:10 +0000 |
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committer | redpony <redpony@ec762483-ff6d-05da-a07a-a48fb63a330f> | 2010-08-11 02:37:10 +0000 |
commit | a53461650fbdcd3cfe7543d28af9647ac3e5e47e (patch) | |
tree | e812756c733b34f9c16894265204acfa9f9998a9 /decoder/hg_io.cc | |
parent | 19b59489bb600f438ad96f04ec5d5c5b6616c9c2 (diff) |
major refactor, break bad circular deps
git-svn-id: https://ws10smt.googlecode.com/svn/trunk@509 ec762483-ff6d-05da-a07a-a48fb63a330f
Diffstat (limited to 'decoder/hg_io.cc')
-rw-r--r-- | decoder/hg_io.cc | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/decoder/hg_io.cc b/decoder/hg_io.cc index 52a8565a..1af8261e 100644 --- a/decoder/hg_io.cc +++ b/decoder/hg_io.cc @@ -622,56 +622,3 @@ void HypergraphIO::WriteAsCFG(const Hypergraph& hg) { } } -namespace B64 { - -static const char cb64[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; -static const char cd64[]="|$$$}rstuvwxyz{$$$$$$$>?@ABCDEFGHIJKLMNOPQRSTUVW$$$$$$XYZ[\\]^_`abcdefghijklmnopq"; - -static void encodeblock(const unsigned char* in, ostream* os, int len) { - char out[4]; - out[0] = cb64[ in[0] >> 2 ]; - out[1] = cb64[ ((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4) ]; - out[2] = (len > 1 ? cb64[ ((in[1] & 0x0f) << 2) | ((in[2] & 0xc0) >> 6) ] : '='); - out[3] = (len > 2 ? cb64[ in[2] & 0x3f ] : '='); - os->write(out, 4); -} - -void b64encode(const char* data, const size_t size, ostream* out) { - size_t cur = 0; - while(cur < size) { - int len = min(static_cast<size_t>(3), size - cur); - encodeblock(reinterpret_cast<const unsigned char*>(&data[cur]), out, len); - cur += len; - } -} - -static void decodeblock(const unsigned char* in, unsigned char* out) { - out[0] = (unsigned char ) (in[0] << 2 | in[1] >> 4); - out[1] = (unsigned char ) (in[1] << 4 | in[2] >> 2); - out[2] = (unsigned char ) (((in[2] << 6) & 0xc0) | in[3]); -} - -bool b64decode(const unsigned char* data, const size_t insize, char* out, const size_t outsize) { - size_t cur = 0; - size_t ocur = 0; - unsigned char in[4]; - while(cur < insize) { - assert(ocur < outsize); - for (int i = 0; i < 4; ++i) { - unsigned char v = data[cur]; - v = (unsigned char) ((v < 43 || v > 122) ? '\0' : cd64[ v - 43 ]); - if (!v) { - cerr << "B64 decode error at offset " << cur << " offending character: " << (int)data[cur] << endl; - return false; - } - v = (unsigned char) ((v == '$') ? '\0' : v - 61); - if (v) in[i] = v - 1; else in[i] = 0; - ++cur; - } - decodeblock(in, reinterpret_cast<unsigned char*>(&out[ocur])); - ocur += 3; - } - return true; -} -} - |