- Implemented --claim=ns3,I switch to filter certain claims.

src/arachne.c

@@ -2237,9 +2237,6 @@ arachneClaim (Claimlist cl)
 {
   // Skip the dummy claims
   if (!isTermEqual (cl->type, CLAIM_Empty))
-    {
-      // Any other claims might be filterered
-      if (switches.filterClaim == NULL || switches.filterClaim == cl->type)
     {
       // Some claims are always true!
       if (!cl->alwaystrue)
@@ -2362,7 +2359,6 @@ arachneClaim (Claimlist cl)
 	      eprintf ("Proof complete for this claim.\n");
 	    }
 	}
-	}
       claimStatusReport (sys, cl);
       if (switches.xml)
 	{

src/compiler.c

@@ -1,6 +1,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <limits.h>
+#include <string.h>
 #include "tac.h"
 #include "term.h"
 #include "termlist.h"
@@ -431,11 +432,31 @@ claimCreate (const System sys, const Protocol protocol, const Role role,
   Claimlist cl;
   Term labeltuple;
 
-  /* check for ignored claim types */
-  if (switches.filterClaim != NULL && switches.filterClaim != claim)
+  if (switches.filterProtocol != NULL)
     {
-      /* abort the construction of the node */
-      return;
+      // only this protocol
+      if (strcmp
+	  (switches.filterProtocol, TermSymb (protocol->nameterm)->text) != 0)
+	{
+	  // not this protocol; return
+	  return NULL;
+	}
+      // and maybe also a specific label?
+      if (switches.filterLabel != NULL)
+	{
+	  Term t;
+
+	  t = label;
+	  while (isTermTuple (t))
+	    {
+	      t = TermOp2 (t);
+	    }
+	  if (strcmp (switches.filterLabel, TermSymb (t)->text) != 0)
+	    {
+	      // not this label; return
+	      return NULL;
+	    }
+	}
     }
 
   /* generate full unique label */
@@ -556,16 +577,15 @@ commEvent (int event, Tac tc)
 	  /* effectively, labels are bound to the protocol */
 	  level--;
 	  /* leaves a garbage tuple. dunnoh what to do with it */
-	  label =
-	    makeTermTuple (thisProtocol->nameterm, levelConst (tc->t1.sym));
+	  label = levelConst (tc->t1.sym);
 	  level++;
 	}
       else
 	{
 	  /* leaves a garbage tuple. dunnoh what to do with it */
+	}
+    }
   label = makeTermTuple (thisProtocol->nameterm, label);
-	}
-    }
 
   /**
    * Parse the specific event type
@@ -1017,7 +1037,17 @@ protocolCompile (Symbol prots, Tac tc, Tac tcroles)
   Protocol pr;
   Term t;
 
-  if (levelFind (prots, level) != NULL)
+  /* make new (empty) current protocol with name */
+  pr = protocolCreate (levelConst (prots));
+  thisProtocol = pr;
+  {
+    // check for double name declarations
+    Protocol prold;
+
+    prold = sys->protocols;
+    while (prold != NULL)
+      {
+	if (isTermEqual (pr->nameterm, prold->nameterm))
 	  {
 	    globalError++;
 	    eprintf ("error: Double declaration of protocol ");
@@ -1025,9 +1055,10 @@ protocolCompile (Symbol prots, Tac tc, Tac tcroles)
 	    eprintf (" ");
 	    errorTac (tc->lineno);
 	  }
-  /* make new (empty) current protocol with name */
-  pr = protocolCreate (levelConst (prots));
-  thisProtocol = pr;
+	prold = prold->next;
+      }
+  }
+
   /* add protocol to list */
   pr->next = sys->protocols;
   sys->protocols = pr;

src/switches.c

@@ -53,7 +53,8 @@ switchesInit (int argc, char **argv)
   switches.maxproofdepth = INT_MAX;
   switches.maxtracelength = INT_MAX;
   switches.runs = 5;		// default is 5 for usability, but -r 0 or --maxruns=0 will set it back to INT_MAX
-  switches.filterClaim = NULL;	// default check all claims
+  switches.filterProtocol = NULL;	// default check all claims
+  switches.filterLabel = NULL;	// default check all claims
   switches.maxAttacks = 0;	// no maximum default
 
   // Arachne
@@ -299,6 +300,20 @@ switcher (const int process, int index, int commandline)
     arg_pointer = argv[index];
   }
 
+  //! Retrieve a (string) argument
+  char *string_argument (void)
+  {
+    char *result;
+
+    if (arg_pointer == NULL)
+      {
+	error ("Argument expected.");
+      }
+    result = arg_pointer;
+    arg_next ();
+    return result;
+  }
+
   //! Parse an argument into an integer
   int integer_argument (void)
   {
@@ -480,6 +495,30 @@ switcher (const int process, int index, int commandline)
 	}
     }
 
+  if (detect (' ', "claim", 1))
+    {
+      if (!process)
+	{
+	  helptext ("--claim=<protocol>[,<label>]",
+		    "check only a certain claim");
+	}
+      else
+	{
+	  char *second;
+
+	  switches.filterProtocol = string_argument ();
+	  second = strchr (switches.filterProtocol, ',');
+	  if (second != NULL)
+	    {
+	      // Cut off first part (turn ',' into '\0'; string is disposable) and proceed to next character.
+	      second[0] = '\0';
+	      second++;
+	      switches.filterLabel = second;
+	    }
+	  return index;
+	}
+    }
+
   if (detect (' ', "remove-claims", 0))
     {
       if (!process)

src/switches.h

@@ -23,7 +23,8 @@ struct switchdata
   int maxproofdepth;		//!< Maximum proof depth
   int maxtracelength;		//!< Maximum trace length allowed
   int runs;			//!< The number of runs as in the switch
-  Term filterClaim;		//!< Which claim should be checked?
+  char *filterProtocol;		//!< Which claim should be checked?
+  char *filterLabel;		//!< Which claim should be checked?
   int maxAttacks;		//!< When not 0, maximum number of attacks
 
   // Arachne

src/todo.txt

@@ -1,9 +1,3 @@
-- Add --filter-claim and --filter-label switches; parse as symbols, and
-  turn into (global?) terms, add to switches termlists. Later check them
-  using two new term functions:
-  const char *termSymbolString(Term t);
-  int termSymbolEqual(Term t1, Term t2);
-  Iteration through the termlist should be done by hand.
 - --check is slightly f***ed up because there is no good semantics for
   the --disable intruder check. As a result, it is now too strict can
   cause correct protocols to fail. Fix.