int
utf2ascii (const char** const inbuf, size_t* const inbytesleft,
char** const outbuf, size_t* const outbytesleft)
{
if (inbuf == NULL || *inbuf == NULL || inbytesleft == NULL ||
outbuf == NULL || *outbuf == NULL || outbytesleft == NULL)
return EFAULT; // ---------->
if (u2c_table == NULL) {
return no_conv (inbuf, inbytesleft, outbuf, outbytesleft);
}
const unsigned char* src = (const unsigned char*) (*inbuf);
char* dest = *outbuf;
while (*inbytesleft > 0 && *outbytesleft > 0) {
unsigned char const c = (unsigned char) *src;
uint16_t s = 0x0;
bool s_ok = false;
int count = 1;
if (c <= 0x7f) {
s = c;
s_ok = true;
} else if (c >= 0xc0 && c <= 0xdf &&
*inbytesleft > 1 &&
(src[1] & 0xc0) == 0x80) {
s = ((c & 0x1f) << 6) | (src[1] & 0x3f);
s_ok = (s > 0x7f); // detect illegal overlong sequence
count = 2;
} else if (c >= 0xe0 && c <= 0xef &&
*inbytesleft > 2 &&
(src[1] & 0xc0) == 0x80 &&
(src[2] & 0xc0) == 0x80) {
s = ((c & 0x0f) << 12) | ((src[1] & 0x3f) << 6);
s |= (src[2] & 0x3f);
s_ok = (s > 0x7ff); // detect illegal overlong sequence
count = 3;
}
src += count;
(*inbytesleft) -= count;
(*outbytesleft)--;
if (s_ok && s < u2c_table_size) {
*(dest++) = u2c_table[s];
} else {
*(dest++) = ERROR_CHAR_ASCII;
// Skip all extraneous continuation bytes
while ( *inbytesleft > 0 && (*src & 0xc0) == 0x80 ) {
src++;
(*inbytesleft)--;
}
}
}
*outbuf = dest;
*inbuf = (const char*) src;
return (*inbytesleft > 0 ? E2BIG : 0);
}
void in_nor(t_main *main)
{
if (find(main, 's') == 1 && main->width > 0 && main->zeroetat == 1)
main->print = ft_strjoin("0", main->print);
else
{
if (main->zeroetat == 1 && no_conv(main) == 1 && main->width > 0)
main->print = ft_strjoin("0", main->print);
else if (main->zeroetat == 1 && main->width > 0 && main->accurate <= 0)
main->print = ft_strjoin("0", main->print);
else
main->print = ft_strjoin(" ", main->print);
}
}
int
ascii2utf (const char** const inbuf, size_t* const inbytesleft,
char** const outbuf, size_t* const outbytesleft)
{
if (inbuf == NULL || *inbuf == NULL || inbytesleft == NULL ||
outbuf == NULL || *outbuf == NULL || outbytesleft == NULL)
return EFAULT; // ---------->
if (c2u_table == NULL) {
return no_conv (inbuf, inbytesleft, outbuf, outbytesleft);
}
const unsigned char* src = (const unsigned char*) (*inbuf);
char* dest = *outbuf;
while (*inbytesleft > 0 && *outbytesleft > 0) {
uint16_t s = c2u_table[*src];
int count;
if (s <= 0x7f)
count = 1;
else if (s <= 0x7ff)
count = 2;
else
count = 3;
if (count > *outbytesleft)
break; // ---------->
switch (count) { // note: code falls through cases!
case 3: dest[2] = 0x80 | (s & 0x3f); s = s >> 6; s |= 0x800;
case 2: dest[1] = 0x80 | (s & 0x3f); s = s >> 6; s |= 0xc0;
case 1: dest[0] = s;
}
dest += count;
(*outbytesleft) -= count;
src++;
(*inbytesleft)--;
}
*outbuf = dest;
*inbuf = (const char*) src;
return ((*inbytesleft) > 0 ? E2BIG : 0);
}
