added -n flag from rcs diff

[unix-history] / usr / src / usr.bin / diff / diff / diffreg.c

diff --git a/usr/src/usr.bin/diff/diff/diffreg.c b/usr/src/usr.bin/diff/diff/diffreg.c
index 33988de..37f1661 100644 (file)
--- a/usr/src/usr.bin/diff/diff/diffreg.c
+++ b/usr/src/usr.bin/diff/diff/diffreg.c
@@ -1,4 +1,4 @@
-static char sccsid[] = "@(#)diffreg.c 4.12 %G%";
+static char sccsid[] = "@(#)diffreg.c 4.13 %G%";

 
 #include "diff.h"
 /*
 
 #include "diff.h"
 /*


@@ -730,6 +730,16 @@ change(a,b,c,d)
                range(a,b," ");
                putchar('\n');
                break;
                range(a,b," ");
                putchar('\n');
                break;

+        case D_NREVERSE:
+                if (a>b)
+                        printf("a%d %d\n",b,d-c+1);
+                else {
+                        printf("d%d %d\n",a,b-a+1);
+                        if (!(c>d))
+                           /* add changed lines */
+                           printf("a%d %d\n",b, d-c+1);
+                }
+                break;

        }
        if(opt == D_NORMAL || opt == D_IFDEF) {
                fetch(ixold,a,b,input[0],"< ", 1);
        }
        if(opt == D_NORMAL || opt == D_IFDEF) {
                fetch(ixold,a,b,input[0],"< ", 1);