Function BREFILL

src/IO/rply.c:307–322

refills the buffer */

/* refills the buffer */
static int BREFILL(p_ply ply) {
    /* move untouched data to beginning of buffer */
    size_t size = BSIZE(ply);
    memmove(ply->buffer, BFIRST(ply), size);
    ply->buffer_last = size;
    ply->buffer_first = ply->buffer_token = 0;
    /* fill remaining with new data */
    size = fread(ply->buffer+size, 1, BUFFERSIZE-size-1, ply->fp);
    /* place sentinel so we can use str* functions with buffer */
    ply->buffer[BUFFERSIZE-1] = '\0';
    /* check if read failed */
    if (size <= 0) return 0;
    /* increase size to account for new data */
    ply->buffer_last += size;
    return 1;
}

/* We don't care about end-of-line, generally, because we
 * separate words by any white-space character.