change notation of point mutation from one aa to antother, related to issue #32

src/core/peptidextp.cpp

@@ -51,9 +51,17 @@ PeptideXtp::getModifString(bool without_label [[maybe_unused]]) const
       QStringList aamodif;
       for(auto &&aa_modif : aa_modif_list)
         {
-          if(!aa_modif->isInternal())
+          if(aa_modif->getAccession().startsWith("MUTATION:"))
+            { // pm@5:N=>T
+              aamodif << QString(aa_modif->getAccession())
+                           .replace("MUTATION:", QString("pm").arg(i));
+            }
+          else
             {
-              aamodif << QString::number(aa_modif->getMass(), 'f', 2);
+              if(!aa_modif->isInternal())
+                {
+                  aamodif << QString::number(aa_modif->getMass(), 'f', 2);
+                }
             }
         }
       aamodif.sort();