===================================================================
RCS file: /home/cvs/OpenXM/src/OpenMath/OMproxy.java,v
retrieving revision 1.26
retrieving revision 1.30
diff -u -p -r1.26 -r1.30
--- OpenXM/src/OpenMath/OMproxy.java	2000/01/21 06:27:24	1.26
+++ OpenXM/src/OpenMath/OMproxy.java	2000/03/12 14:24:21	1.30
@@ -1,5 +1,5 @@
 /**
- * $OpenXM: OpenXM/src/OpenMath/OMproxy.java,v 1.25 2000/01/20 18:55:22 tam Exp $
+ * $OpenXM: OpenXM/src/OpenMath/OMproxy.java,v 1.29 2000/01/21 07:33:18 tam Exp $
  */
 
 import JP.ac.kobe_u.math.tam.OpenXM.*;
@@ -20,27 +20,34 @@ class OMproxy implements Runnable{
     OM2OXM P = new OM2OXM();
 
     debug("OMproxy started.");
-    while(true){
-      try{
-	int ox_tag = ox.receiveOXtag();
+    try{
+      while(true){
+	try{
+	  int ox_tag = ox.receiveOXtag();
 
-	switch(ox_tag){
-	case OpenXM.OX_COMMAND:
-	  StackMachine(ox.receiveSM());
-	  break;
+	  switch(ox_tag){
+	  case OpenXM.OX_COMMAND:
+	    StackMachine(ox.receiveSM());
+	    break;
 
-	case OpenXM.OX_DATA:
-	  stack.push(ox.receiveCMO());
-	  debug("push: "+ stack.peek());
-	  break;
+	  case OpenXM.OX_DATA:
+	    stack.push(ox.receiveCMO());
+	    debug("push: "+ stack.peek());
+	    break;
+	  }
+	}catch(RuntimeException e){
+	  System.err.println(e.getMessage());
+	  e.printStackTrace();
+	  debug("error occured. stack was cleared.");
 	}
-      }catch(Throwable e){
-	System.err.println(e.getMessage());
-	e.printStackTrace();
-	debug("error occured. stack was cleared.");
       }
+    }catch(IOException e){
+      System.err.println(e.getMessage());
+      e.printStackTrace();
+      System.err.println("error occured, and recovering processes seems to be impossible.");
+    }finally{
+      System.out.println("breaking...");
     }
-    //System.out.println("breaking...");
   }
 
   /*
@@ -65,7 +72,10 @@ class OMproxy implements Runnable{
 	ox.send(stack.pop());
       }
     }catch(MathcapViolation e){
-      stack.push(new CMO_STRING(e.getMessage()));
+      try{
+	ox.send(new cmoError2(new CMO_STRING("MathcapViolation: "+
+					      e.getMessage())));
+      }catch(MathcapViolation tmp){}
     }
   }
 
@@ -75,7 +85,7 @@ class OMproxy implements Runnable{
     int argc;
 
     if(!(stack.peek() instanceof CMO_STRING)){
-      stack.push(new CMO_ERROR2());
+      stack.push(new cmoError2(new cmoNull()));
       return;
     }
     function_name = ((CMO_STRING)stack.pop()).getString();
@@ -86,7 +96,7 @@ class OMproxy implements Runnable{
     }
 
     if(argc != 1){
-      stack.push(new CMO_ERROR2());
+      stack.push(new cmoError2(new cmoNull()));
       return;
     }
 
@@ -98,7 +108,7 @@ class OMproxy implements Runnable{
       return;
     }
 
-    stack.push(new CMO_ERROR2());
+    stack.push(new cmoError2(new cmoNull()));
     return;
   }
 
@@ -154,7 +164,7 @@ class OMproxy implements Runnable{
     Object mathcap = stack.pop();
 
     if(mathcap instanceof CMO_MATHCAP){
-      stack.push(new CMO_ERROR2());
+      stack.push(new cmoError2(new cmoNull()));
     }
     ox.setMathCap((CMO_MATHCAP)mathcap);
   }
@@ -191,7 +201,7 @@ class OMproxy implements Runnable{
       str = OM2OXM.CMO2OM(obj);
     }catch(NumberFormatException e){
       debug("CMO2OMXML occuered error in trans");
-      return new CMO_ERROR2(new CMO_STRING(e.toString()));
+      return new cmoError2(new CMO_STRING(e.toString()));
     }
 
     return new CMO_STRING(str);
@@ -205,7 +215,7 @@ class OMproxy implements Runnable{
 
     debug("OMXML2CMO called: "+obj);
     if(!(obj instanceof CMO_STRING)){
-      return new CMO_ERROR2(new CMO_STRING("It's not CMO_STRING."));
+      return new cmoError2(new CMO_STRING("It's not CMO_STRING."));
     }
 
     try{
@@ -213,10 +223,10 @@ class OMproxy implements Runnable{
       ret = trans.parse(stream);
     }catch(IOException e){
       debug("OMXML2CMO occuered error in trans");
-      return new CMO_ERROR2(new CMO_STRING(e.toString()));
+      return new cmoError2(new CMO_STRING(e.toString()));
     }catch(NumberFormatException e){
       debug("OMXML2CMO occuered error in trans");
-      return new CMO_ERROR2(new CMO_STRING(e.toString()));
+      return new cmoError2(new CMO_STRING(e.toString()));
     }
 
     debug("push: "+ret);