Function expand_tabs

libraries/hoedown/src/document.c:2697–2729

}

static void expand_tabs(hoedown_buffer *ob, const uint8_t *line, size_t size)
{
    /* This code makes two assumptions:
     * - Input is valid UTF-8.  (Any byte with top two bits 10 is skipped,
     *   whether or not it is a valid UTF-8 continuation byte.)
     * - Input contains no combining characters.  (Combining characters
     *   should be skipped but are not.)
     */
    size_t  i = 0, tab = 0;

    while (i < size) {
        size_t org = i;

        while (i < size && line[i] != '\t') {
            /* ignore UTF-8 continuation bytes */
            if ((line[i] & 0xc0) != 0x80)
                tab++;
            i++;
        }

        if (i > org)
            hoedown_buffer_put(ob, line + org, i - org);

        if (i >= size)
            break;

        do {
            hoedown_buffer_putc(ob, ' '); tab++;
        } while (tab % 4);

        i++;
    }
}

/**********************
 * EXPORTED FUNCTIONS *