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-rw-r--r--xdiff/xmerge.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/xdiff/xmerge.c b/xdiff/xmerge.c
index 1fe7a1b060..352207e516 100644
--- a/xdiff/xmerge.c
+++ b/xdiff/xmerge.c
@@ -38,8 +38,9 @@ static int xdl_append_merge(xdmerge_t **merge, int mode,
long i1, long chg1, long i2, long chg2)
{
xdmerge_t *m = *merge;
- if (m && mode == m->mode &&
- (i1 == m->i1 + m->chg1 || i2 == m->i2 + m->chg2)) {
+ if (m && (i1 <= m->i1 + m->chg1 || i2 <= m->i2 + m->chg2)) {
+ if (mode != m->mode)
+ m->mode = 0;
m->chg1 = i1 + chg1 - m->i1;
m->chg2 = i2 + chg2 - m->i2;
} else {
@@ -313,22 +314,10 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, const char *name1,
i1 = xscr1->i1 + xscr1->chg1;
i2 = xscr2->i1 + xscr2->chg1;
- if (i1 > i2) {
- xscr1->chg1 -= i1 - i2;
- xscr1->i1 = i2;
- xscr1->i2 += xscr1->chg2;
- xscr1->chg2 = 0;
+ if (i1 >= i2)
xscr2 = xscr2->next;
- } else if (i2 > i1) {
- xscr2->chg1 -= i2 - i1;
- xscr2->i1 = i1;
- xscr2->i2 += xscr2->chg2;
- xscr2->chg2 = 0;
- xscr1 = xscr1->next;
- } else {
+ if (i2 >= i1)
xscr1 = xscr1->next;
- xscr2 = xscr2->next;
- }
}
while (xscr1) {
if (!changes)