To get the right context in the thrown error string.

Rev: lib/modules/Parser.pmod/C.pmod:1.25
Rev: lib/modules/Parser.pmod/Pike.pmod:1.10

lib/modules/Parser.pmod/C.pmod

@@ -173,7 +173,7 @@ array(string) split(string data)
 	  if(data[pos]=='\\') pos++;
           int end=search(data, "'", pos+1)+1;
           if(!end)
-            throw( ({sprintf("Unknown token %O\n",data[pos..pos+20]) }) );
+            throw( ({sprintf("Unknown token %O\n",data[pos-1..pos+19]) }) );
           pos=end;
           break;
 

lib/modules/Parser.pmod/Pike.pmod

@@ -205,8 +205,10 @@ array(string) split(string data)
 	  pos++;
 	  if(data[pos]=='\\') pos++;
           int end=search(data, "'", pos)+1;
-          if (!end)
+          if (!end) {
+            --pos;
             UNKNOWN_TOKEN;
+          }
           pos=end;
 	  break;