- Added '--extend-nonreads' switch. It is totally untested, and I hope

Gijs will have a look at it and tell me whether it actually works.

src/switches.c

@@ -73,9 +73,11 @@ switchesInit (int argc, char **argv)
   switches.reportClaims = 0;	// default don't report on claims
   switches.xml = 0;		// default no xml output
   switches.human = false;	// not human friendly by default
-  switches.reportMemory;
-  switches.reportTime;
-  switches.reportStates;
+  switches.reportMemory = 0;
+  switches.reportTime = 0;
+  switches.reportStates = 0;
+  switches.extendNonReads = 0;	// default off
+
   // Obsolete
   switches.latex = 0;		// latex output?
 
@@ -449,6 +451,20 @@ switcher (const int process, int index)
 	}
     }
 
+  if (detect (' ', "extend-nonreads", 0))
+    {
+      if (!process)
+	{
+	  /* discourage: hide
+	   */
+	}
+      else
+	{
+	  switches.extendNonReads = 1;
+	  return index;
+	}
+    }
+
   /* ==================
    *  External options
    */

src/switches.h

@@ -55,6 +55,8 @@ struct switchdata
   int reportMemory;		//!< Memory display switch.
   int reportTime;		//!< Time display switch.
   int reportStates;		//!< Progress display switch. (traversed states)
+  int extendNonReads;		//!< Show further events in arachne xml output.
+
   //! Latex output switch.
   /**
    * Obsolete. Use globalLatex instead.

src/xmlout.c

@@ -711,9 +711,36 @@ xmlOutRuns (const System sys)
 	Roledef rd;
 	int index;
 
+	//! Test whether to display this event
+	/**
+	 * Could be integrated into a single line on the while loop,
+	 * but that makes it rather hard to understand.
+	 */
+	int showthis (void)
+	{
+	  if (rd != NULL)
+	    {
+	      if (index < sys->runs[run].step)
+		{
+		  return true;
+		}
+	      else
+		{
+		  if (switches.extendNonReads)
+		    {
+		      if (rd->type != READ)
+			{
+			  return true;
+			}
+		    }
+		}
+	    }
+	  return false;
+	}
+
 	index = 0;
 	rd = sys->runs[run].start;
-	while (rd != NULL && index < sys->runs[run].step)
+	while (showthis ())
 	  {
 	    xmlOutEvent (sys, rd, run, index);
 	    index++;
@@ -752,6 +779,9 @@ xmlOutSemitrace (const System sys)
   xmlIndentPrint ();
   printf ("<attack");
   /* add trace length attribute */
+  /* Note that this is the length of the attack leading up to the broken
+   * claim, thus without any run extensions (--extend-nonreads).
+   */
   printf (" tracelength=\"%i\"", get_semitrace_length ());
   /* add attack id attribute (within this scyther call) */
   printf (" id=\"%i\"", sys->attackid);