Ensure increasing page range list

attah · Aug 19, 2022 · f9b740c · f9b740c
1 parent 371c06b
commit f9b740c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/rangelistchecker.cpp b/src/rangelistchecker.cpp
@@ -33,9 +33,15 @@ QJsonArray RangeListChecker::parse(QString str) const
     PrintParameters params;
     params.setPageRange(str.toStdString());
     QJsonArray ret;
+    size_t previous = 0;
     for(const std::pair<size_t, size_t>& p : params.pageRangeList)
     {
+        if(p.first <= previous)
+        {
+            return {};
+        }
         ret.append(QJsonObject {{"low", int(p.first)}, {"high", int(p.second)}});
+        previous = p.second;
     }
     return ret;
 }