00001
00002
00003 #include "pch.h"
00004
00005 #ifndef CRYPTOPP_IMPORTS
00006
00007 #include "hex.h"
00008
00009 NAMESPACE_BEGIN(CryptoPP)
00010
00011 static const byte s_vecUpper[] = "0123456789ABCDEF";
00012 static const byte s_vecLower[] = "0123456789abcdef";
00013
00014 void HexEncoder::IsolatedInitialize(const NameValuePairs ¶meters)
00015 {
00016 bool uppercase = parameters.GetValueWithDefault(Name::Uppercase(), true);
00017 m_filter->Initialize(CombinedNameValuePairs(
00018 parameters,
00019 MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], false)(Name::Log2Base(), 4, true)));
00020 }
00021
00022 void HexDecoder::IsolatedInitialize(const NameValuePairs ¶meters)
00023 {
00024 BaseN_Decoder::IsolatedInitialize(CombinedNameValuePairs(
00025 parameters,
00026 MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 4, true)));
00027 }
00028
00029 const int *HexDecoder::GetDefaultDecodingLookupArray()
00030 {
00031 static volatile bool s_initialized = false;
00032 static int s_array[256];
00033
00034 if (!s_initialized)
00035 {
00036 InitializeDecodingLookupArray(s_array, s_vecUpper, 16, true);
00037 s_initialized = true;
00038 }
00039 return s_array;
00040 }
00041
00042 NAMESPACE_END
00043
00044 #endif