diff options
Diffstat (limited to 'src/StringUtils.cpp')
| -rw-r--r-- | src/StringUtils.cpp | 93 |
1 files changed, 85 insertions, 8 deletions
diff --git a/src/StringUtils.cpp b/src/StringUtils.cpp index f7aeeed26..0b38297ef 100644 --- a/src/StringUtils.cpp +++ b/src/StringUtils.cpp @@ -47,15 +47,13 @@ AString & AppendVPrintf(AString & str, const char *format, va_list args) #endif // _MSC_VER // Allocate a buffer and printf into it: - str.resize(len + 1); - // HACK: we're accessing AString's internal buffer in a way that is NOT guaranteed to always work. But it works on all STL implementations tested. - // I can't think of any other way that is safe, doesn't allocate twice as much space as needed and doesn't use C++11 features like the move constructor + std::vector<char> Buffer(len + 1); #ifdef _MSC_VER - vsprintf_s((char *)str.data(), len + 1, format, args); + vsprintf_s((char *)&(Buffer.front()), Buffer.size(), format, args); #else // _MSC_VER - vsnprintf((char *)str.data(), len + 1, format, args); + vsnprintf((char *)&(Buffer.front()), Buffer.size(), format, args); #endif // else _MSC_VER - str.resize(len); + str.append(&(Buffer.front()), Buffer.size() - 1); return str; } @@ -612,7 +610,7 @@ AString StripColorCodes(const AString & a_Message) { AString res(a_Message); size_t idx = 0; - while (true) + for (;;) { idx = res.find("\xc2\xa7", idx); if (idx == AString::npos) @@ -759,7 +757,86 @@ AString Base64Decode(const AString & a_Base64String) } } res.resize(o >> 3); - return res;} + return res; +} + + + + + +AString Base64Encode(const AString & a_Input) +{ + static const char BASE64[64] = { + 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P', + 'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f', + 'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v', + 'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/' + }; + + AString output; + output.resize(((a_Input.size() + 2) / 3) * 4); + + size_t output_index = 0; + size_t size_full24 = (a_Input.size() / 3) * 3; + + for (size_t i = 0; i < size_full24; i += 3) + { + output[output_index++] = BASE64[(unsigned char)a_Input[i] >> 2]; + output[output_index++] = BASE64[((unsigned char)a_Input[i] << 4 | (unsigned char)a_Input[i + 1] >> 4) & 63]; + output[output_index++] = BASE64[((unsigned char)a_Input[i + 1] << 2 | (unsigned char)a_Input[i + 2] >> 6) & 63]; + output[output_index++] = BASE64[(unsigned char)a_Input[i + 2] & 63]; + } + + if (size_full24 < a_Input.size()) + { + output[output_index++] = BASE64[(unsigned char)a_Input[size_full24] >> 2]; + if (size_full24 + 1 == a_Input.size()) + { + output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4) & 63]; + output[output_index++] = '='; + } + else + { + output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4 | (unsigned char)a_Input[size_full24 + 1] >> 4) & 63]; + output[output_index++] = BASE64[((unsigned char)a_Input[size_full24 + 1] << 2) & 63]; + } + + output[output_index++] = '='; + } + ASSERT(output_index == output.size()); + + return output; +} + + + + + +short GetBEShort(const char * a_Mem) +{ + return (((short)a_Mem[0]) << 8) | a_Mem[1]; +} + + + + + +int GetBEInt(const char * a_Mem) +{ + return (((int)a_Mem[0]) << 24) | (((int)a_Mem[1]) << 16) | (((int)a_Mem[2]) << 8) | a_Mem[3]; +} + + + + + +void SetBEInt(char * a_Mem, Int32 a_Value) +{ + a_Mem[0] = a_Value >> 24; + a_Mem[1] = (a_Value >> 16) & 0xff; + a_Mem[2] = (a_Value >> 8) & 0xff; + a_Mem[3] = a_Value & 0xff; +} |