43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
#include "Base64Stream.h"
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namespace pdf2htmlEX {
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using std::ostream;
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ostream & Base64Stream::dumpto(ostream & out)
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{
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unsigned char buf[3];
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while(in->read((char*)buf, 3))
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{
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out << base64_encoding[(buf[0] & 0xfc)>>2]
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<< base64_encoding[((buf[0] & 0x03)<<4) | ((buf[1] & 0xf0)>>4)]
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<< base64_encoding[((buf[1] & 0x0f)<<2) | ((buf[2] & 0xc0)>>6)]
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<< base64_encoding[(buf[2] & 0x3f)];
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}
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auto cnt = in->gcount();
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if(cnt > 0)
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{
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for(int i = cnt; i < 3; ++i)
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buf[i] = 0;
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out << base64_encoding[(buf[0] & 0xfc)>>2]
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<< base64_encoding[((buf[0] & 0x03)<<4) | ((buf[1] & 0xf0)>>4)];
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if(cnt > 1)
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{
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out << base64_encoding[(buf[1] & 0x0f)<<2];
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}
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else
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{
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out << '=';
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}
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out << '=';
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}
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return out;
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}
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const char * Base64Stream::base64_encoding = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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} //namespace pdf2htmlEX
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