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Diffstat (limited to 'xdiff/xdiffi.c')
-rw-r--r--xdiff/xdiffi.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c
index 1b7012a119..2358a2d632 100644
--- a/xdiff/xdiffi.c
+++ b/xdiff/xdiffi.c
@@ -394,6 +394,7 @@ static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1,
xch->i2 = i2;
xch->chg1 = chg1;
xch->chg2 = chg2;
+ xch->ignore = 0;
return xch;
}
@@ -490,7 +491,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
/*
* Try to move back the possibly merged group of changes, to match
- * the recorded postion in the other file.
+ * the recorded position in the other file.
*/
while (ixref < ix) {
rchg[--ixs] = 1;
@@ -544,7 +545,9 @@ static int xdl_call_hunk_func(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
xdchange_t *xch, *xche;
for (xch = xscr; xch; xch = xche->next) {
- xche = xdl_get_hunk(xch, xecfg);
+ xche = xdl_get_hunk(&xch, xecfg);
+ if (!xch)
+ break;
if (xecfg->hunk_func(xch->i1, xche->i1 + xche->chg1 - xch->i1,
xch->i2, xche->i2 + xche->chg2 - xch->i2,
ecb->priv) < 0)
@@ -553,6 +556,27 @@ static int xdl_call_hunk_func(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
return 0;
}
+static void xdl_mark_ignorable(xdchange_t *xscr, xdfenv_t *xe, long flags)
+{
+ xdchange_t *xch;
+
+ for (xch = xscr; xch; xch = xch->next) {
+ int ignore = 1;
+ xrecord_t **rec;
+ long i;
+
+ rec = &xe->xdf1.recs[xch->i1];
+ for (i = 0; i < xch->chg1 && ignore; i++)
+ ignore = xdl_blankline(rec[i]->ptr, rec[i]->size, flags);
+
+ rec = &xe->xdf2.recs[xch->i2];
+ for (i = 0; i < xch->chg2 && ignore; i++)
+ ignore = xdl_blankline(rec[i]->ptr, rec[i]->size, flags);
+
+ xch->ignore = ignore;
+ }
+}
+
int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
xdemitconf_t const *xecfg, xdemitcb_t *ecb) {
xdchange_t *xscr;
@@ -571,6 +595,9 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
return -1;
}
if (xscr) {
+ if (xpp->flags & XDF_IGNORE_BLANK_LINES)
+ xdl_mark_ignorable(xscr, &xe, xpp->flags);
+
if (ef(&xe, xscr, ecb, xecfg) < 0) {
xdl_free_script(xscr);