Function image_prepare

apply.c:330–352

* "buf" has the file contents to be patched (read from various sources). * attach it to "image" and add line-based index to it. * "image" now owns the "buf". */

 * "image" now owns the "buf".
 */
static void image_prepare(struct image *image, char *buf, size_t len,
			  int prepare_linetable)
{
	const char *cp, *ep;

	image_clear(image);
	strbuf_attach(&image->buf, buf, len, len + 1);

	if (!prepare_linetable)
		return;

	ep = image->buf.buf + image->buf.len;
	cp = image->buf.buf;
	while (cp < ep) {
		const char *next;
		for (next = cp; next < ep && *next != '\n'; next++)
			;
		if (next < ep)
			next++;
		image_add_line(image, cp, next - cp, 0);
		cp = next;
	}
}

static void image_remove_first_line(struct image *img)
{