Adds user prompts for String and Integer.

I think so are seen frequently enough to warrant an addition.

11 files changed, 703 insertions, 25 deletions

diff --git a/src/core/src/tonkadur/fate/v1/lang/instruction/PromptInteger.java b/src/core/src/tonkadur/fate/v1/lang/instruction/PromptInteger.java
new file mode 100644
index 0000000..ae28617
--- /dev/null
+++ b/src/core/src/tonkadur/fate/v1/lang/instruction/PromptInteger.java
@@ -0,0 +1,150 @@
+package tonkadur.fate.v1.lang.instruction;
+
+import java.util.Collections;
+
+import tonkadur.error.ErrorManager;
+
+import tonkadur.parser.Origin;
+
+import tonkadur.fate.v1.error.InvalidTypeException;
+
+import tonkadur.fate.v1.lang.type.Type;
+
+import tonkadur.fate.v1.lang.meta.InstructionVisitor;
+import tonkadur.fate.v1.lang.meta.Instruction;
+import tonkadur.fate.v1.lang.meta.Computation;
+
+public class PromptInteger extends Instruction
+{
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final Computation target;
+   protected final Computation min;
+   protected final Computation max;
+   protected final Computation label;
+
+   /***************************************************************************/
+   /**** PROTECTED ************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   protected PromptInteger
+   (
+      final Origin origin,
+      final Computation target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   {
+      super(origin);
+
+      this.target = target;
+      this.min = min;
+      this.max = max;
+      this.label = label;
+   }
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   public static PromptInteger build
+   (
+      final Origin origin,
+      final Computation target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   throws InvalidTypeException
+   {
+      if (!target.get_type().can_be_used_as(Type.INT))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               target.get_origin(),
+               target.get_type(),
+               Collections.singletonList(Type.INT)
+            )
+         );
+      }
+
+      if (!min.get_type().can_be_used_as(Type.INT))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               min.get_origin(),
+               min.get_type(),
+               Collections.singletonList(Type.INT)
+            )
+         );
+      }
+
+      if (!max.get_type().can_be_used_as(Type.INT))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               min.get_origin(),
+               min.get_type(),
+               Collections.singletonList(Type.INT)
+            )
+         );
+      }
+
+      return new PromptInteger(origin, target, min, max, label);
+   }
+
+   /**** Accessors ************************************************************/
+   @Override
+   public void get_visited_by (final InstructionVisitor iv)
+   throws Throwable
+   {
+      iv.visit_prompt_integer(this);
+   }
+
+   public Computation get_target ()
+   {
+      return target;
+   }
+
+   public Computation get_max ()
+   {
+      return max;
+   }
+
+   public Computation get_min ()
+   {
+      return min;
+   }
+
+   public Computation get_label ()
+   {
+      return label;
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb = new StringBuilder();
+
+      sb.append("(PromptInteger ");
+      sb.append(target.toString());
+      sb.append(" ");
+      sb.append(min.toString());
+      sb.append(" ");
+      sb.append(max.toString());
+      sb.append(" ");
+      sb.append(label.toString());
+      sb.append(")");
+
+      return sb.toString();
+   }
+}
diff --git a/src/core/src/tonkadur/fate/v1/lang/instruction/PromptString.java b/src/core/src/tonkadur/fate/v1/lang/instruction/PromptString.java
new file mode 100644
index 0000000..e857952
--- /dev/null
+++ b/src/core/src/tonkadur/fate/v1/lang/instruction/PromptString.java
@@ -0,0 +1,150 @@
+package tonkadur.fate.v1.lang.instruction;
+
+import java.util.Collections;
+
+import tonkadur.error.ErrorManager;
+
+import tonkadur.parser.Origin;
+
+import tonkadur.fate.v1.error.InvalidTypeException;
+
+import tonkadur.fate.v1.lang.type.Type;
+
+import tonkadur.fate.v1.lang.meta.InstructionVisitor;
+import tonkadur.fate.v1.lang.meta.Instruction;
+import tonkadur.fate.v1.lang.meta.Computation;
+
+public class PromptString extends Instruction
+{
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final Computation target;
+   protected final Computation min;
+   protected final Computation max;
+   protected final Computation label;
+
+   /***************************************************************************/
+   /**** PROTECTED ************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   protected PromptString
+   (
+      final Origin origin,
+      final Computation target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   {
+      super(origin);
+
+      this.target = target;
+      this.min = min;
+      this.max = max;
+      this.label = label;
+   }
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   public static PromptString build
+   (
+      final Origin origin,
+      final Computation target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   throws InvalidTypeException
+   {
+      if (!target.get_type().can_be_used_as(Type.STRING))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               target.get_origin(),
+               target.get_type(),
+               Collections.singletonList(Type.STRING)
+            )
+         );
+      }
+
+      if (!min.get_type().can_be_used_as(Type.INT))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               min.get_origin(),
+               min.get_type(),
+               Collections.singletonList(Type.INT)
+            )
+         );
+      }
+
+      if (!max.get_type().can_be_used_as(Type.INT))
+      {
+         ErrorManager.handle
+         (
+            new InvalidTypeException
+            (
+               min.get_origin(),
+               min.get_type(),
+               Collections.singletonList(Type.INT)
+            )
+         );
+      }
+
+      return new PromptString(origin, target, min, max, label);
+   }
+
+   /**** Accessors ************************************************************/
+   @Override
+   public void get_visited_by (final InstructionVisitor iv)
+   throws Throwable
+   {
+      iv.visit_prompt_string(this);
+   }
+
+   public Computation get_target ()
+   {
+      return target;
+   }
+
+   public Computation get_max ()
+   {
+      return max;
+   }
+
+   public Computation get_min ()
+   {
+      return min;
+   }
+
+   public Computation get_label ()
+   {
+      return label;
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb = new StringBuilder();
+
+      sb.append("(PromptString ");
+      sb.append(target.toString());
+      sb.append(" ");
+      sb.append(min.toString());
+      sb.append(" ");
+      sb.append(max.toString());
+      sb.append(" ");
+      sb.append(label.toString());
+      sb.append(")");
+
+      return sb.toString();
+   }
+}
diff --git a/src/core/src/tonkadur/fate/v1/lang/meta/InstructionVisitor.java b/src/core/src/tonkadur/fate/v1/lang/meta/InstructionVisitor.java
index afaa151..6e0da72 100644
--- a/src/core/src/tonkadur/fate/v1/lang/meta/InstructionVisitor.java
+++ b/src/core/src/tonkadur/fate/v1/lang/meta/InstructionVisitor.java
@@ -65,6 +65,12 @@ public interface InstructionVisitor
    public void visit_instruction_list (final InstructionList n)
    throws Throwable;
 
+   public void visit_prompt_integer (final PromptInteger n)
+   throws Throwable;
+
+   public void visit_prompt_string (final PromptString n)
+   throws Throwable;
+
    public void visit_player_choice (final PlayerChoice n)
    throws Throwable;
 
diff --git a/src/core/src/tonkadur/fate/v1/parser/FateLexer.g4 b/src/core/src/tonkadur/fate/v1/parser/FateLexer.g4
index 1525d42..271a766 100644
--- a/src/core/src/tonkadur/fate/v1/parser/FateLexer.g4
+++ b/src/core/src/tonkadur/fate/v1/parser/FateLexer.g4
@@ -85,6 +85,8 @@ REMOVE_ONE_KW: L_PAREN 'remove'US'one' SEP+;
 REMOVE_AT_KW: L_PAREN ('remove'US('elem'('ent')?US)?'at') SEP+;
 REQUIRE_EXTENSION_KW: L_PAREN 'require'US'extension' SEP+;
 REQUIRE_KW: L_PAREN 'require' SEP+;
+PROMPT_STRING_KW: L_PAREN 'prompt_string' SEP+;
+PROMPT_INTEGER_KW: L_PAREN 'prompt_int'('eger'?) SEP+;
 SET_FIELDS_KW: L_PAREN 'set'US'fields' SEP+;
 SET_KW: L_PAREN 'set'(US(('val''ue'?)|('var''iable'?)))? SEP+;
 LIST_KW: L_PAREN 'list' SEP+;
diff --git a/src/core/src/tonkadur/fate/v1/parser/FateParser.g4 b/src/core/src/tonkadur/fate/v1/parser/FateParser.g4
index 2c6aeca..4c0a7a0 100644
--- a/src/core/src/tonkadur/fate/v1/parser/FateParser.g4
+++ b/src/core/src/tonkadur/fate/v1/parser/FateParser.g4
@@ -512,6 +512,50 @@ returns [Instruction result]
       }
    }
 
+   | PROMPT_STRING_KW
+         target=value_reference WS+
+         min_size=value WS+
+         max_size=value WS+
+         paragraph WS*
+      R_PAREN
+   {
+      $result =
+         PromptString.build
+         (
+            CONTEXT.get_origin_at
+            (
+               ($PROMPT_STRING_KW.getLine()),
+               ($PROMPT_STRING_KW.getCharPositionInLine())
+            ),
+            ($target.result),
+            ($min_size.result),
+            ($max_size.result),
+            ($paragraph.result)
+         );
+   }
+
+   | PROMPT_INTEGER_KW
+         target=value_reference WS+
+         min_size=value WS+
+         max_size=value WS+
+         paragraph WS*
+      R_PAREN
+   {
+      $result =
+         PromptInteger.build
+         (
+            CONTEXT.get_origin_at
+            (
+               ($PROMPT_INTEGER_KW.getLine()),
+               ($PROMPT_INTEGER_KW.getCharPositionInLine())
+            ),
+            ($target.result),
+            ($min_size.result),
+            ($max_size.result),
+            ($paragraph.result)
+         );
+   }
+
    | ADD_KW value WS+ value_reference WS* R_PAREN
    {
       $result =
@@ -1420,13 +1464,10 @@ returns [Instruction result]
       }
       WS+
       {
-         BREAKABLE_LEVELS++;
          HIERARCHICAL_VARIABLES.push(new ArrayList());
       }
       player_choice_list
       {
-         BREAKABLE_LEVELS--;
-
          for (final String s: HIERARCHICAL_VARIABLES.pop())
          {
             LOCAL_VARIABLES.peekFirst().remove(s);
diff --git a/src/core/src/tonkadur/wyrd/v1/compiler/fate/v1/InstructionCompiler.java b/src/core/src/tonkadur/wyrd/v1/compiler/fate/v1/InstructionCompiler.java
index 4672f21..deb0772 100644
--- a/src/core/src/tonkadur/wyrd/v1/compiler/fate/v1/InstructionCompiler.java
+++ b/src/core/src/tonkadur/wyrd/v1/compiler/fate/v1/InstructionCompiler.java
@@ -33,6 +33,8 @@ import tonkadur.wyrd.v1.lang.instruction.Display;
 import tonkadur.wyrd.v1.lang.instruction.End;
 import tonkadur.wyrd.v1.lang.instruction.EventCall;
 import tonkadur.wyrd.v1.lang.instruction.Remove;
+import tonkadur.wyrd.v1.lang.instruction.PromptString;
+import tonkadur.wyrd.v1.lang.instruction.PromptInteger;
 import tonkadur.wyrd.v1.lang.instruction.ResolveChoices;
 import tonkadur.wyrd.v1.lang.instruction.SetPC;
 import tonkadur.wyrd.v1.lang.instruction.SetValue;
@@ -1310,14 +1312,7 @@ implements tonkadur.fate.v1.lang.meta.InstructionVisitor
          result.add(cc.get_init());
       }
 
-      labels_only.add
-      (
-         new AddChoice
-         (
-            cc.get_computation(),
-            compiler.assembler().get_label_constant(start_of_effect)
-         )
-      );
+      labels_only.add(new AddChoice(cc.get_computation()));
 
       labels_only.add
       (
@@ -1974,4 +1969,130 @@ implements tonkadur.fate.v1.lang.meta.InstructionVisitor
       value_cc.release_registers();
       address_cc.release_registers();
    }
+
+   @Override
+   public void visit_prompt_integer
+   (
+      final tonkadur.fate.v1.lang.instruction.PromptInteger n
+   )
+   throws Throwable
+   {
+      /*
+       * Fate: (prompt_integer target min max label)
+       * Wyrd: (prompt_integer target min max label)
+       */
+      final ComputationCompiler target_cc, min_cc, max_cc, label_cc;
+
+      target_cc = new ComputationCompiler(compiler);
+      min_cc = new ComputationCompiler(compiler);
+      max_cc = new ComputationCompiler(compiler);
+      label_cc = new ComputationCompiler(compiler);
+
+      n.get_target().get_visited_by(target_cc);
+
+      if (target_cc.has_init())
+      {
+         result.add(target_cc.get_init());
+      }
+
+      n.get_min().get_visited_by(min_cc);
+
+      if (min_cc.has_init())
+      {
+         result.add(min_cc.get_init());
+      }
+
+      n.get_max().get_visited_by(max_cc);
+
+      if (max_cc.has_init())
+      {
+         result.add(max_cc.get_init());
+      }
+
+      n.get_label().get_visited_by(label_cc);
+
+      if (label_cc.has_init())
+      {
+         result.add(label_cc.get_init());
+      }
+
+      result.add
+      (
+         new PromptInteger
+         (
+            target_cc.get_address(),
+            min_cc.get_computation(),
+            max_cc.get_computation(),
+            label_cc.get_computation()
+         )
+      );
+
+      target_cc.release_registers();
+      min_cc.release_registers();
+      max_cc.release_registers();
+      label_cc.release_registers();
+   }
+
+   @Override
+   public void visit_prompt_string
+   (
+      final tonkadur.fate.v1.lang.instruction.PromptString n
+   )
+   throws Throwable
+   {
+      /*
+       * Fate: (prompt_integer target min max label)
+       * Wyrd: (prompt_integer target min max label)
+       */
+      final ComputationCompiler target_cc, min_cc, max_cc, label_cc;
+
+      target_cc = new ComputationCompiler(compiler);
+      min_cc = new ComputationCompiler(compiler);
+      max_cc = new ComputationCompiler(compiler);
+      label_cc = new ComputationCompiler(compiler);
+
+      n.get_target().get_visited_by(target_cc);
+
+      if (target_cc.has_init())
+      {
+         result.add(target_cc.get_init());
+      }
+
+      n.get_min().get_visited_by(min_cc);
+
+      if (min_cc.has_init())
+      {
+         result.add(min_cc.get_init());
+      }
+
+      n.get_max().get_visited_by(max_cc);
+
+      if (max_cc.has_init())
+      {
+         result.add(max_cc.get_init());
+      }
+
+      n.get_label().get_visited_by(label_cc);
+
+      if (label_cc.has_init())
+      {
+         result.add(label_cc.get_init());
+      }
+
+      result.add
+      (
+         new PromptString
+         (
+            target_cc.get_address(),
+            min_cc.get_computation(),
+            max_cc.get_computation(),
+            label_cc.get_computation()
+         )
+      );
+
+      target_cc.release_registers();
+      min_cc.release_registers();
+      max_cc.release_registers();
+      label_cc.release_registers();
+   }
 }
diff --git a/src/core/src/tonkadur/wyrd/v1/lang/instruction/AddChoice.java b/src/core/src/tonkadur/wyrd/v1/lang/instruction/AddChoice.java
index e8da2c5..02f4bc8 100644
--- a/src/core/src/tonkadur/wyrd/v1/lang/instruction/AddChoice.java
+++ b/src/core/src/tonkadur/wyrd/v1/lang/instruction/AddChoice.java
@@ -10,16 +10,14 @@ public class AddChoice extends Instruction
    /**** MEMBERS **************************************************************/
    /***************************************************************************/
    protected final Computation label;
-   protected final Computation address;
 
    /***************************************************************************/
    /**** PUBLIC ***************************************************************/
    /***************************************************************************/
    /**** Constructors *********************************************************/
-   public AddChoice (final Computation label, final Computation address)
+   public AddChoice (final Computation label)
    {
       this.label = label;
-      this.address = address;
    }
 
    /**** Accessors ************************************************************/
@@ -28,11 +26,6 @@ public class AddChoice extends Instruction
       return label;
    }
 
-   public Computation get_address ()
-   {
-      return address;
-   }
-
    @Override
    public void get_visited_by (final InstructionVisitor iv)
    throws Throwable
@@ -50,8 +43,6 @@ public class AddChoice extends Instruction
 
       sb.append("(AddChoice ");
       sb.append(label.toString());
-      sb.append(" ");
-      sb.append(address.toString());
       sb.append(")");
 
       return sb.toString();
diff --git a/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptInteger.java b/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptInteger.java
new file mode 100644
index 0000000..237a9a5
--- /dev/null
+++ b/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptInteger.java
@@ -0,0 +1,83 @@
+package tonkadur.wyrd.v1.lang.instruction;
+
+import tonkadur.wyrd.v1.lang.computation.Address;
+
+import tonkadur.wyrd.v1.lang.meta.Computation;
+import tonkadur.wyrd.v1.lang.meta.Instruction;
+import tonkadur.wyrd.v1.lang.meta.InstructionVisitor;
+
+public class PromptInteger extends Instruction
+{
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final Address target;
+   protected final Computation min, max, label;
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   public PromptInteger
+   (
+      final Address target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   {
+      this.target = target;
+      this.min = min;
+      this.max = max;
+      this.label = label;
+   }
+
+   /**** Accessors ************************************************************/
+   public Address get_target()
+   {
+      return target;
+   }
+
+   public Computation get_min()
+   {
+      return min;
+   }
+
+   public Computation get_max()
+   {
+      return max;
+   }
+
+   public Computation get_label()
+   {
+      return label;
+   }
+
+   @Override
+   public void get_visited_by (final InstructionVisitor iv)
+   throws Throwable
+   {
+      iv.visit_prompt_integer(this);
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb;
+
+      sb = new StringBuilder();
+
+      sb.append("(PromptInteger ");
+      sb.append(target.toString());
+      sb.append(" ");
+      sb.append(min.toString());
+      sb.append(" ");
+      sb.append(max.toString());
+      sb.append(" ");
+      sb.append(label.toString());
+      sb.append(")");
+
+      return sb.toString();
+   }
+}
diff --git a/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptString.java b/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptString.java
new file mode 100644
index 0000000..a24ac61
--- /dev/null
+++ b/src/core/src/tonkadur/wyrd/v1/lang/instruction/PromptString.java
@@ -0,0 +1,83 @@
+package tonkadur.wyrd.v1.lang.instruction;
+
+import tonkadur.wyrd.v1.lang.computation.Address;
+
+import tonkadur.wyrd.v1.lang.meta.Computation;
+import tonkadur.wyrd.v1.lang.meta.Instruction;
+import tonkadur.wyrd.v1.lang.meta.InstructionVisitor;
+
+public class PromptString extends Instruction
+{
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final Address target;
+   protected final Computation min, max, label;
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   public PromptString
+   (
+      final Address target,
+      final Computation min,
+      final Computation max,
+      final Computation label
+   )
+   {
+      this.target = target;
+      this.min = min;
+      this.max = max;
+      this.label = label;
+   }
+
+   /**** Accessors ************************************************************/
+   public Address get_target()
+   {
+      return target;
+   }
+
+   public Computation get_min()
+   {
+      return min;
+   }
+
+   public Computation get_max()
+   {
+      return max;
+   }
+
+   public Computation get_label()
+   {
+      return label;
+   }
+
+   @Override
+   public void get_visited_by (final InstructionVisitor iv)
+   throws Throwable
+   {
+      iv.visit_prompt_string(this);
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb;
+
+      sb = new StringBuilder();
+
+      sb.append("(PromptString ");
+      sb.append(target.toString());
+      sb.append(" ");
+      sb.append(min.toString());
+      sb.append(" ");
+      sb.append(max.toString());
+      sb.append(" ");
+      sb.append(label.toString());
+      sb.append(")");
+
+      return sb.toString();
+   }
+}
diff --git a/src/core/src/tonkadur/wyrd/v1/lang/meta/InstructionVisitor.java b/src/core/src/tonkadur/wyrd/v1/lang/meta/InstructionVisitor.java
index 8db6db0..63ca737 100644
--- a/src/core/src/tonkadur/wyrd/v1/lang/meta/InstructionVisitor.java
+++ b/src/core/src/tonkadur/wyrd/v1/lang/meta/InstructionVisitor.java
@@ -28,6 +28,12 @@ public interface InstructionVisitor
    public void visit_set_pc (final SetPC n)
    throws Throwable;
 
+   public void visit_prompt_integer (final PromptInteger n)
+   throws Throwable;
+
+   public void visit_prompt_string (final PromptString n)
+   throws Throwable;
+
    public void visit_set_value (final SetValue n)
    throws Throwable;
 }
diff --git a/src/json-export/src/tonkadur/jsonexport/InstructionCompiler.java b/src/json-export/src/tonkadur/jsonexport/InstructionCompiler.java
index 8376be4..01b8e76 100644
--- a/src/json-export/src/tonkadur/jsonexport/InstructionCompiler.java
+++ b/src/json-export/src/tonkadur/jsonexport/InstructionCompiler.java
@@ -15,19 +15,16 @@ public class InstructionCompiler implements InstructionVisitor
    public void visit_add_choice (final AddChoice n)
    throws Throwable
    {
-      final ComputationCompiler label_cc, address_cc;
+      final ComputationCompiler label_cc;
 
       label_cc = new ComputationCompiler();
-      address_cc = new ComputationCompiler();
 
       n.get_label().get_visited_by(label_cc);
-      n.get_address().get_visited_by(address_cc);
 
       result = new JSONObject();
 
       result.put("category", "add_choice");
       result.put("label", label_cc.get_result());
-      result.put("address", address_cc.get_result());
    }
 
    public void visit_assert (final Assert n)
@@ -152,6 +149,54 @@ public class InstructionCompiler implements InstructionVisitor
       result.put("value", val_cc.get_result());
    }
 
+   public void visit_prompt_integer (final PromptInteger n)
+   throws Throwable
+   {
+      final ComputationCompiler target_cc, min_cc, max_cc, label_cc;
+
+      target_cc = new ComputationCompiler();
+      min_cc = new ComputationCompiler();
+      max_cc = new ComputationCompiler();
+      label_cc = new ComputationCompiler();
+
+      n.get_target().get_visited_by(target_cc);
+      n.get_min().get_visited_by(min_cc);
+      n.get_max().get_visited_by(max_cc);
+      n.get_label().get_visited_by(label_cc);
+
+      result = new JSONObject();
+
+      result.put("category", "prompt_integer");
+      result.put("target", target_cc.get_result());
+      result.put("min", min_cc.get_result());
+      result.put("max", max_cc.get_result());
+      result.put("label", label_cc.get_result());
+   }
+
+   public void visit_prompt_string (final PromptString n)
+   throws Throwable
+   {
+      final ComputationCompiler target_cc, min_cc, max_cc, label_cc;
+
+      target_cc = new ComputationCompiler();
+      min_cc = new ComputationCompiler();
+      max_cc = new ComputationCompiler();
+      label_cc = new ComputationCompiler();
+
+      n.get_target().get_visited_by(target_cc);
+      n.get_min().get_visited_by(min_cc);
+      n.get_max().get_visited_by(max_cc);
+      n.get_label().get_visited_by(label_cc);
+
+      result = new JSONObject();
+
+      result.put("category", "prompt_string");
+      result.put("target", target_cc.get_result());
+      result.put("min", min_cc.get_result());
+      result.put("max", max_cc.get_result());
+      result.put("label", label_cc.get_result());
+   }
+
    public JSONObject get_result ()
    {
       return result;