imports/imhex
1
0
Fork 0
mirror of https://github.com/WerWolv/ImHex.git synced 2026-03-30 13:05:25 -05:00
Code Issues Packages Projects Releases Wiki Activity

feat: Add ignore case and UTF16 search options to sequence searching

Browse Source
This commit is contained in:
WerWolv
2023-12-19 14:34:35 +01:00
parent c7ab4a4569
commit 96db2074c6
6 changed files with 150 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
lib/libimhex/source/helpers/utils.cpp
View File

@@ -485,6 +485,70 @@ namespace hex {
return result;
}
std::wstring utf8ToUtf16(const std::string& utf8) {
std::vector<u32> unicodes;
for (size_t byteIndex = 0; byteIndex < utf8.size();) {
u32 unicode = 0;
size_t unicodeSize = 0;
u8 ch = utf8[byteIndex];
byteIndex += 1;
if (ch <= 0x7F) {
unicode = ch;
unicodeSize = 0;
} else if (ch <= 0xBF) {
return { };
} else if (ch <= 0xDF) {
unicode = ch&0x1F;
unicodeSize = 1;
} else if (ch <= 0xEF) {
unicode = ch&0x0F;
unicodeSize = 2;
} else if (ch <= 0xF7) {
unicode = ch&0x07;
unicodeSize = 3;
} else {
return { };
}
for (size_t unicodeByteIndex = 0; unicodeByteIndex < unicodeSize; unicodeByteIndex += 1) {
if (byteIndex == utf8.size())
return { };
u8 byte = utf8[byteIndex];
if (byte < 0x80 || byte > 0xBF)
return { };
unicode <<= 6;
unicode += byte & 0x3F;
byteIndex += 1;
}
if (unicode >= 0xD800 && unicode <= 0xDFFF)
return { };
if (unicode > 0x10FFFF)
return { };
unicodes.push_back(unicode);
}
std::wstring utf16;
for (auto unicode : unicodes) {
if (unicode <= 0xFFFF)
utf16 += static_cast<wchar_t>(unicode);
else {
unicode -= 0x10000;
utf16 += static_cast<wchar_t>(((unicode >> 10) + 0xD800));
utf16 += static_cast<wchar_t>(((unicode & 0x3FF) + 0xDC00));
}
}
return utf16;
}
float float16ToFloat32(u16 float16) {
u32 sign = float16 >> 15;
u32 exponent = (float16 >> 10) & 0x1F;