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- /* Normal-format output routines for GNU DIFF.
- Copyright (C) 1988, 1989, 1993 Free Software Foundation, Inc.
-
- This file is part of GNU DIFF.
-
- GNU DIFF is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GNU DIFF is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU DIFF; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- #include "diff.h"
-
- static void print_normal_hunk PARAMS((struct change *));
-
- /* Print the edit-script SCRIPT as a normal diff.
- INF points to an array of descriptions of the two files. */
-
- void
- print_normal_script (script)
- struct change *script;
- {
- print_script (script, find_change, print_normal_hunk);
- }
-
- /* Print a hunk of a normal diff.
- This is a contiguous portion of a complete edit script,
- describing changes in consecutive lines. */
-
- static void
- print_normal_hunk (hunk)
- struct change *hunk;
- {
- int first0, last0, first1, last1, deletes, inserts;
- register int i;
-
- /* Determine range of line numbers involved in each file. */
- analyze_hunk (hunk, &first0, &last0, &first1, &last1, &deletes, &inserts);
- if (!deletes && !inserts)
- return;
-
- begin_output ();
-
- /* Print out the line number header for this hunk */
- print_number_range (',', &files[0], first0, last0);
- fprintf (outfile, "%c", change_letter (inserts, deletes));
- print_number_range (',', &files[1], first1, last1);
- fprintf (outfile, "\n");
-
- /* Print the lines that the first file has. */
- if (deletes)
- for (i = first0; i <= last0; i++)
- print_1_line ("<", &files[0].linbuf[i]);
-
- if (inserts && deletes)
- fprintf (outfile, "---\n");
-
- /* Print the lines that the second file has. */
- if (inserts)
- for (i = first1; i <= last1; i++)
- print_1_line (">", &files[1].linbuf[i]);
- }
-