char* mio_get_line(const MFP* mfp)
{
int size = 1;
int pos;
char* buf = NULL;
char* s;
char* t;
assert(mfp_is_valid(mfp));
do
{
pos = size - 1;
size += BUF_SIZE_INC - 1;
buf = (buf == NULL) ? malloc((size_t)size) : realloc(buf, (size_t)size);
t = &buf[pos];
buf[size - 1] = '@';
s = mio_gets(mfp, t, BUF_SIZE_INC);
}
while(s != NULL && buf[size - 1] == '\0' && buf[size - 2] != '\n');
/* nothing read at all ?
*/
if (s == NULL && size == BUF_SIZE_INC)
{
free(buf);
buf = NULL;
}
return buf;
}
static const char *selectByLines (MIO *input,
const char* (* lineTaster) (const char *, void *),
const char* defaultLang,
void *userData)
{
char line[0x800];
while (mio_gets(input, line, sizeof(line))) {
const char *lang = lineTaster (line, userData);
if (lang)
return lang;
}
return defaultLang;
}
