Random code fragment from git source code

apply.c

/* 
  A small part of 200 lines long function from Git source code.
*/
  if (inaccurate_eof &&
	    old > oldlines && old[-1] == '\n' &&
	    newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') {
		old--;
		strbuf_setlen(&newlines, newlines.len - 1);
		preimage.line_allocated[preimage.nr - 1].len--;
		postimage.line_allocated[postimage.nr - 1].len--;
	}

	leading = frag->leading;
	trailing = frag->trailing;

	/*
	 * A hunk to change lines at the beginning would begin with
	 * @@ -1,L +N,M @@
	 * but we need to be careful.  -U0 that inserts before the second
	 * line also has this pattern.
	 *
	 * And a hunk to add to an empty file would begin with
	 * @@ -0,0 +N,M @@
	 *
	 * In other words, a hunk that is (frag->oldpos <= 1) with or
	 * without leading context must match at the beginning.
	 */
	match_beginning = (!frag->oldpos ||
			   (frag->oldpos == 1 && !state->unidiff_zero));