From: Jacob Keller <jacob.kel...@gmail.com>
It is a common pattern in xdl_change_compact to check that hashes and
strings match. The resulting code to perform this change causes very
long lines and makes it hard to follow the intention. Introduce a helper
function recs_match which performs both checks to increase
code readability.
Signed-off-by: Jacob Keller <jacob.e.kel...@intel.com>
Signed-off-by: Stefan Beller <sbel...@google.com>
---
xdiff/xdiffi.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c
index 2358a2d..748eeb9 100644
--- a/xdiff/xdiffi.c
+++ b/xdiff/xdiffi.c
@@ -400,6 +400,14 @@ static xdchange_t *xdl_add_change(xdchange_t *xscr, long
i1, long i2, long chg1,
}
+static int recs_match(xrecord_t **recs, long ixs, long ix, long flags)
+{
+ return (recs[ixs]->ha == recs[ix]->ha &&
+ xdl_recmatch(recs[ixs]->ptr, recs[ixs]->size,
+ recs[ix]->ptr, recs[ix]->size,
+ flags));
+}
+
int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
long ix, ixo, ixs, ixref, grpsiz, nrec = xdf->nrec;
char *rchg = xdf->rchg, *rchgo = xdfo->rchg;
@@ -442,8 +450,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long
flags) {
* the last line of the current change group, shift
backward
* the group.
*/
- while (ixs > 0 && recs[ixs - 1]->ha == recs[ix - 1]->ha
&&
- xdl_recmatch(recs[ixs - 1]->ptr, recs[ixs -
1]->size, recs[ix - 1]->ptr, recs[ix - 1]->size, flags)) {
+ while (ixs > 0 && recs_match(recs, ixs - 1, ix - 1,
flags)) {
rchg[--ixs] = 1;
rchg[--ix] = 0;
@@ -470,8 +477,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long
flags) {
* the line next of the current change group, shift
forward
* the group.
*/
- while (ix < nrec && recs[ixs]->ha == recs[ix]->ha &&
- xdl_recmatch(recs[ixs]->ptr, recs[ixs]->size,
recs[ix]->ptr, recs[ix]->size, flags)) {
+ while (ix < nrec && recs_match(recs, ixs, ix, flags)) {
rchg[ixs++] = 0;
rchg[ix++] = 1;
--
2.8.1.189.gd13d43c
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