Adds Constants.

1 files changed, 93 insertions, 0 deletions

diff --git a/src/core/src/tonkadur/fate/v1/lang/Constant.java b/src/core/src/tonkadur/fate/v1/lang/Constant.java
new file mode 100644
index 0000000..7123b26
--- /dev/null
+++ b/src/core/src/tonkadur/fate/v1/lang/Constant.java
@@ -0,0 +1,93 @@
+package tonkadur.fate.v1.lang;
+
+import tonkadur.parser.Origin;
+
+import tonkadur.fate.v1.lang.meta.ValueNode;
+
+public class Constant extends ValueNode
+{
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final String as_string;
+
+   /***************************************************************************/
+   /**** PROTECTED ************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   protected Constant
+   (
+      final Origin origin,
+      final Type result_type,
+      final String as_string
+   )
+   {
+      super(origin, result_type);
+
+      this.as_string = as_string;
+   }
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   public Constant build (final Origin origin, final String as_string)
+   {
+      try
+      {
+         Integer.valueOf(as_string);
+
+         return new Constant(origin, Type.INT, as_string);
+      }
+      catch (final NumberFormatException nfe)
+      {
+         /* That's fine, we're just testing... */
+      }
+
+      try
+      {
+         Float.valueOf(as_string);
+
+         return new Constant(origin, Type.FLOAT, as_string);
+      }
+      catch (final NumberFormatException nfe)
+      {
+         /* That's fine, we're just testing... */
+      }
+
+      try
+      {
+         Boolean.valueOf(as_string);
+
+         return new Constant(origin, Type.BOOLEAN, as_string);
+      }
+      catch (final NumberFormatException nfe)
+      {
+         /* That's fine, we're just testing... */
+      }
+
+      return new Constant(origin, Type.STRING, as_string);
+   }
+
+   /**** Accessors ************************************************************/
+   public String get_value_as_string ()
+   {
+      return as_string;
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb = new StringBuilder();
+
+      sb.append(origin.toString());
+      sb.append("(");
+      sb.append(type.get_name());
+      sb.append(" Constant ");
+      sb.append(as_string);
+      sb.append(")");
+
+      return sb.toString();
+   }
+}