xevion/easy7zip
1
0
Fork 0
mirror of https://github.com/Xevion/easy7zip.git synced 2026-02-01 00:24:14 -06:00
Code Issues Packages Projects Releases Wiki Activity

4.20

Browse Source
This commit is contained in:
Igor Pavlov
2005-05-30 00:00:00 +00:00
committed by Kornel Lesiński
parent 8c1b5c7b7e
commit 3c510ba80b
926 changed files with 40559 additions and 23519 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Common/UTFConvert.cpp
+62 -41
View File
@@ -5,66 +5,87 @@
#include "UTFConvert.h"
#include "Types.h"
bool ConvertUTF8ToUnicode(const AString &utfString, UString &resultString)
static Byte kUtf8Limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
// These functions are for UTF8 <-> UTF16 conversion.
bool ConvertUTF8ToUnicode(const AString &src, UString &dest)
{
resultString.Empty();
for(int i = 0; i < utfString.Length(); i++)
dest.Empty();
for(int i = 0; i < src.Length();)
{
BYTE c = utfString[i];
Byte c = (Byte)src[i++];
if (c < 0x80)
{
resultString += c;
dest += (wchar_t)c;
continue;
}
if(c < 0xC0 || c >= 0xF0)
if(c < 0xC0)
return false;
i++;
if (i >= utfString.Length())
return false;
BYTE c2 = utfString[i];
if (c2 < 0x80)
return false;
c2 -= 0x80;
if (c2 >= 0x40)
return false;
if (c < 0xE0)
int numAdds;
for (numAdds = 1; numAdds < 5; numAdds++)
if (c < kUtf8Limits[numAdds])
break;
UInt32 value = (c - kUtf8Limits[numAdds - 1]);
do
{
resultString += wchar_t( ((wchar_t(c - 0xC0)) << 6) + c2);
continue;
if (i >= src.Length())
return false;
Byte c2 = (Byte)src[i++];
if (c2 < 0x80 || c2 >= 0xC0)
return false;
value <<= 6;
value |= (c2 - 0x80);
numAdds--;
}
while(numAdds > 0);
if (value < 0x10000)
dest += (wchar_t)(value);
else
{
value -= 0x10000;
if (value >= 0x100000)
return false;
dest += (wchar_t)(0xD800 + (value >> 10));
dest += (wchar_t)(0xDC00 + (value & 0x3FF));
}
i++;
if (i >= utfString.Length())
return false;
BYTE c3 = utfString[i];
c3 -= 0x80;
if (c3 >= 0x40)
return false;
resultString += wchar_t(((wchar_t(c - 0xE0)) << 12) +
((wchar_t(c2)) << 6) + c3);
}
return true;
}
void ConvertUnicodeToUTF8(const UString &unicodeString, AString &resultString)
bool ConvertUnicodeToUTF8(const UString &src, AString &dest)
{
resultString.Empty();
for(int i = 0; i < unicodeString.Length(); i++)
dest.Empty();
for(int i = 0; i < src.Length();)
{
wchar_t c = unicodeString[i];
if (c < 0x80)
UInt32 value = (UInt32)src[i++];
if (value < 0x80)
{
resultString += char(c);
dest += (char)value;
continue;
}
if (c < 0x07FF)
if (value >= 0xD800 && value < 0xE000)
{
resultString += char(0xC0 + (c >> 6));
resultString += char(0x80 + (c & 0x003F));
continue;
if (value >= 0xDC00)
return false;
if (i >= src.Length())
return false;
UInt32 c2 = (UInt32)src[i++];
if (c2 < 0xDC00 || c2 >= 0xE000)
return false;
value = ((value - 0xD800) << 10) | (c2 - 0xDC00);
}
resultString += char(0xE0 + (c >> 12));
resultString += char(0x80 + ((c >> 6) & 0x003F));
resultString += char(0x80 + (c & 0x003F));
int numAdds;
for (numAdds = 1; numAdds < 5; numAdds++)
if (value < (((UInt32)1) << (numAdds * 5 + 6)))
break;
dest += (char)(kUtf8Limits[numAdds - 1] + (value >> (6 * numAdds)));
do
{
numAdds--;
dest += (char)(0x80 + ((value >> (6 * numAdds)) & 0x3F));
}
while(numAdds > 0);
}
return true;
}