use rpmEVRoverlap() in ranges_overlap()

1 files changed, 13 insertions, 56 deletions

diff --git a/URPM.xs b/URPM.xs
index ea6631f..5ba8da3 100644
--- a/URPM.xs
+++ b/URPM.xs
@@ -347,64 +347,21 @@ ranges_overlap(uint32_t aflags, char *sa, uint32_t bflags, char *sb) {
   if (!aflags || !bflags)
     return 1; /* really faster to test it there instead of later */
   else {
-    int sense = 0;
     char *eosa = strchr(sa, ']');
     char *eosb = strchr(sb, ']');
-    char *ea, *va, *ra, *eb, *vb, *rb;
-
-    if (eosa) *eosa = 0;
-    if (eosb) *eosb = 0;
-    /* parse sa as an [epoch:]version[-release] */
-    for (ea = sa; *sa >= '0' && *sa <= '9'; ++sa);
-    if (*sa == ':') {
-      *sa++ = 0; /* ea could be an empty string (should be interpreted as 0) */
-      va = sa;
-    } else {
-      va = ea; /* no epoch */
-      ea = NULL;
-    }
-    if ((ra = strrchr(sa, '-'))) *ra++ = 0;
-    /* parse sb as an [epoch:]version[-release] */
-    for (eb = sb; *sb >= '0' && *sb <= '9'; ++sb);
-    if (*sb == ':') {
-      *sb++ = 0; /* ea could be an empty string (should be interpreted as 0) */
-      vb = sb;
-    } else {
-      vb = eb; /* no epoch */
-      eb = NULL;
-    }
-    if ((rb = strrchr(sb, '-'))) *rb++ = 0;
-    /* now compare epoch */
-    if (ea && eb)
-      sense = rpmvercmp(*ea ? ea : "0", *eb ? eb : "0");
-    else if (ea && *ea && atol(ea) > 0)
-      sense = 1;
-    else if (eb && *eb && atol(eb) > 0)
-      sense = -1;
-    /* now compare version and release if epoch has not been enough */
-    if (sense == 0) {
-      sense = rpmvercmp(va, vb);
-      if (sense == 0 && ra && *ra && rb && *rb)
-	sense = rpmvercmp(ra, rb);
-    }
-    /* restore all character that have been modified inline */
-    if (rb) rb[-1] = '-';
-    if (ra) ra[-1] = '-';
-    if (eb) vb[-1] = ':';
-    if (ea) va[-1] = ':';
-    if (eosb) *eosb = ']';
-    if (eosa) *eosa = ']';
-    /* finish the overlap computation */
-    if (sense < 0 && ((aflags & RPMSENSE_GREATER) || (bflags & RPMSENSE_LESS)))
-      return 1;
-    else if (sense > 0 && ((aflags & RPMSENSE_LESS) || (bflags & RPMSENSE_GREATER)))
-      return 1;
-    else if (sense == 0 && (((aflags & RPMSENSE_EQUAL) && (bflags & RPMSENSE_EQUAL)) ||
-			    ((aflags & RPMSENSE_LESS) && (bflags & RPMSENSE_LESS)) ||
-			    ((aflags & RPMSENSE_GREATER) && (bflags & RPMSENSE_GREATER))))
-      return 1;
-    else
-      return 0;
+    EVR_t lEVR = rpmEVRnew(aflags, 0),
+          rEVR = rpmEVRnew(bflags, 0);
+
+    backup_char(eosa);
+    backup_char(eosb);
+    rpmEVRparse(sa, lEVR);
+    rpmEVRparse(sb, rEVR);
+    /* TODO: upstream bug? should rpmEVRparse really reset Flags? */
+    lEVR->Flags = aflags;
+    rEVR->Flags = bflags;
+    restore_chars();
+
+    return rpmEVRoverlap(lEVR,rEVR);
   }
 }