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