mirror of
https://github.com/reactos/reactos.git
synced 2024-07-06 20:55:16 +00:00
76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
|
|
/*
|
|
* Convert ansi to utf-8
|
|
* it does not support more that utf-16
|
|
* the table we are using is base on utf-16 then we convert the table to utf-8
|
|
*
|
|
* All table lookup the ansi char to utf-16 then we calc the utf-8 format.
|
|
*/
|
|
|
|
#include "oem437.h" /* windows oem 437 */
|
|
#include "oem850.h" /* windows oem 850 */
|
|
#include "Windows28591.h" /* windows 28591 aka ISO-2859-1 (Latin 1) */
|
|
#include "Windows28592.h" /* windows 28592 aka ISO-2859-2 (Latin 2) */
|
|
|
|
int ansiCodePage(int codepage, unsigned char *inBuffer, unsigned char *outBuffer, int Lenght)
|
|
{
|
|
int t;
|
|
int ch;
|
|
int pos=0;
|
|
|
|
for (t=0;t<Lenght;t++)
|
|
{
|
|
ch=-1;
|
|
if (codepage == 437)
|
|
{
|
|
ch = (int) table_OEM437[ ((unsigned char)inBuffer[t])];
|
|
}
|
|
|
|
if (codepage == 850)
|
|
{
|
|
ch = (int) table_OEM850[ ((unsigned char)inBuffer[t])];
|
|
}
|
|
|
|
if (codepage == 28591)
|
|
{
|
|
ch = (int) table_Windows28591[ ((unsigned char)inBuffer[t])];
|
|
}
|
|
if (codepage == 28592)
|
|
{
|
|
ch = (int) table_Windows28592[ ((unsigned char)inBuffer[t])];
|
|
}
|
|
|
|
|
|
|
|
|
|
if (ch == -1)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (ch <= 0x7F)
|
|
{
|
|
outBuffer[pos]=ch;
|
|
pos++;
|
|
}
|
|
else if (ch <=0x07FF) // 1 1111 11 1111
|
|
{
|
|
outBuffer[pos]= 0xC0 | (0x1F & (ch >> 6)); // 110x xxxx
|
|
outBuffer[pos+1]= 0x80 | (0x3f & ch); // 11xx xxxx
|
|
pos+=2;
|
|
}
|
|
|
|
else if (ch <=0xFFFF) // 11 11 11 11 11 11 11 11
|
|
{
|
|
outBuffer[pos]= 0xC2 | (0xf & (ch >> 12)); // 1110xxxx
|
|
outBuffer[pos+1]= 0x80 | (0x3f & (ch >> 6)); // 10xxxxxx
|
|
outBuffer[pos+1]= 0x80 | (0x3f & ch); // 10xxxxxx
|
|
pos+=3;
|
|
}
|
|
|
|
}
|
|
|
|
return pos;
|
|
}
|
|
|