diff options
Diffstat (limited to 'contrib/cvs/diff/ed.c')
| -rw-r--r-- | contrib/cvs/diff/ed.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/contrib/cvs/diff/ed.c b/contrib/cvs/diff/ed.c deleted file mode 100644 index 74fc2a4..0000000 --- a/contrib/cvs/diff/ed.c +++ /dev/null @@ -1,198 +0,0 @@ -/* Output routines for ed-script format. - Copyright (C) 1988, 89, 91, 92, 93, 1998 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. - -*/ - -#include "diff.h" - -static void print_ed_hunk PARAMS((struct change *)); -static void print_rcs_hunk PARAMS((struct change *)); -static void pr_forward_ed_hunk PARAMS((struct change *)); - -/* Print our script as ed commands. */ - -void -print_ed_script (script) - struct change *script; -{ - print_script (script, find_reverse_change, print_ed_hunk); -} - -/* Print a hunk of an ed diff */ - -static void -print_ed_hunk (hunk) - struct change *hunk; -{ - int f0, l0, f1, l1; - int deletes, inserts; - -#if 0 - hunk = flip_script (hunk); -#endif -#ifdef DEBUG - debug_script (hunk); -#endif - - /* Determine range of line numbers involved in each file. */ - analyze_hunk (hunk, &f0, &l0, &f1, &l1, &deletes, &inserts); - if (!deletes && !inserts) - return; - - begin_output (); - - /* Print out the line number header for this hunk */ - print_number_range (',', &files[0], f0, l0); - printf_output ("%c\n", change_letter (inserts, deletes)); - - /* Print new/changed lines from second file, if needed */ - if (inserts) - { - int i; - int inserting = 1; - for (i = f1; i <= l1; i++) - { - /* Resume the insert, if we stopped. */ - if (! inserting) - printf_output ("%da\n", - i - f1 + translate_line_number (&files[0], f0) - 1); - inserting = 1; - - /* If the file's line is just a dot, it would confuse `ed'. - So output it with a double dot, and set the flag LEADING_DOT - so that we will output another ed-command later - to change the double dot into a single dot. */ - - if (files[1].linbuf[i][0] == '.' - && files[1].linbuf[i][1] == '\n') - { - printf_output ("..\n"); - printf_output (".\n"); - /* Now change that double dot to the desired single dot. */ - printf_output ("%ds/^\\.\\././\n", - i - f1 + translate_line_number (&files[0], f0)); - inserting = 0; - } - else - /* Line is not `.', so output it unmodified. */ - print_1_line ("", &files[1].linbuf[i]); - } - - /* End insert mode, if we are still in it. */ - if (inserting) - printf_output (".\n"); - } -} - -/* Print change script in the style of ed commands, - but print the changes in the order they appear in the input files, - which means that the commands are not truly useful with ed. */ - -void -pr_forward_ed_script (script) - struct change *script; -{ - print_script (script, find_change, pr_forward_ed_hunk); -} - -static void -pr_forward_ed_hunk (hunk) - struct change *hunk; -{ - int i; - int f0, l0, f1, l1; - int deletes, inserts; - - /* Determine range of line numbers involved in each file. */ - analyze_hunk (hunk, &f0, &l0, &f1, &l1, &deletes, &inserts); - if (!deletes && !inserts) - return; - - begin_output (); - - printf_output ("%c", change_letter (inserts, deletes)); - print_number_range (' ', files, f0, l0); - printf_output ("\n"); - - /* If deletion only, print just the number range. */ - - if (!inserts) - return; - - /* For insertion (with or without deletion), print the number range - and the lines from file 2. */ - - for (i = f1; i <= l1; i++) - print_1_line ("", &files[1].linbuf[i]); - - printf_output (".\n"); -} - -/* Print in a format somewhat like ed commands - except that each insert command states the number of lines it inserts. - This format is used for RCS. */ - -void -print_rcs_script (script) - struct change *script; -{ - print_script (script, find_change, print_rcs_hunk); -} - -/* Print a hunk of an RCS diff */ - -static void -print_rcs_hunk (hunk) - struct change *hunk; -{ - int i; - int f0, l0, f1, l1; - int deletes, inserts; - int tf0, tl0, tf1, tl1; - - /* Determine range of line numbers involved in each file. */ - analyze_hunk (hunk, &f0, &l0, &f1, &l1, &deletes, &inserts); - if (!deletes && !inserts) - return; - - begin_output (); - - translate_range (&files[0], f0, l0, &tf0, &tl0); - - if (deletes) - { - printf_output ("d"); - /* For deletion, print just the starting line number from file 0 - and the number of lines deleted. */ - printf_output ("%d %d\n", - tf0, - (tl0 >= tf0 ? tl0 - tf0 + 1 : 1)); - } - - if (inserts) - { - printf_output ("a"); - - /* Take last-line-number from file 0 and # lines from file 1. */ - translate_range (&files[1], f1, l1, &tf1, &tl1); - printf_output ("%d %d\n", - tl0, - (tl1 >= tf1 ? tl1 - tf1 + 1 : 1)); - - /* Print the inserted lines. */ - for (i = f1; i <= l1; i++) - print_1_line ("", &files[1].linbuf[i]); - } -} |
