From 198b26c2a3f6e29c7f2232acdac57a564a2577f6 Mon Sep 17 00:00:00 2001
From: Nathanael Sensfelder <SpamShield0@MultiAgentSystems.org>
Date: Wed, 11 Aug 2021 10:50:19 +0200
Subject: ...

---
 .../fate/v1/lang/computation/generic/TextJoin.java | 130 +++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/core/src/tonkadur/fate/v1/lang/computation/generic/TextJoin.java

diff --git a/src/core/src/tonkadur/fate/v1/lang/computation/generic/TextJoin.java b/src/core/src/tonkadur/fate/v1/lang/computation/generic/TextJoin.java
new file mode 100644
index 0000000..4d10497
--- /dev/null
+++ b/src/core/src/tonkadur/fate/v1/lang/computation/generic/TextJoin.java
@@ -0,0 +1,130 @@
+package tonkadur.fate.v1.lang.computation.generic;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import tonkadur.parser.Origin;
+import tonkadur.parser.ParsingError;
+
+import tonkadur.fate.v1.lang.type.Type;
+
+import tonkadur.fate.v1.lang.meta.ComputationVisitor;
+import tonkadur.fate.v1.lang.meta.Computation;
+import tonkadur.fate.v1.lang.meta.RecurrentChecks;
+
+import tonkadur.fate.v1.lang.computation.GenericComputation;
+
+public class TextJoin extends GenericComputation
+{
+   public static Collection<String> get_aliases ()
+   {
+      final Collection<String> aliases;
+
+      aliases = new ArrayList<String>();
+
+      aliases.add("join_text");
+      aliases.add("jointext");
+      aliases.add("joinText");
+      aliases.add("text_join");
+      aliases.add("textJoin");
+
+      return aliases;
+   }
+
+   public static GenericComputation build
+   (
+      final Origin origin,
+      final String _alias,
+      final List<Computation> call_parameters
+   )
+   throws Throwable
+   {
+      final Computation text_collection;
+      final Computation link;
+
+      if (call_parameters.size() != 2)
+      {
+         // TODO: Error.
+         System.err.println("Wrong number of params at " + origin.toString());
+
+         return null;
+      }
+
+      text_collection = call_parameters.get(0);
+      link = call_parameters.get(1);
+
+      text_collection.expect_non_string();
+      link.expect_string();
+
+      RecurrentChecks.assert_is_a_collection_of
+      (
+         origin,
+         text_collection.get_type(),
+         origin,
+         Type.TEXT
+      );
+
+      RecurrentChecks.assert_can_be_used_as
+      (
+         link,
+         Type.TEXT
+      );
+
+      return new TextJoin(origin, text_collection, link);
+   }
+
+   /***************************************************************************/
+   /**** MEMBERS **************************************************************/
+   /***************************************************************************/
+   protected final Computation text_collection;
+   protected final Computation link;
+
+   /***************************************************************************/
+   /**** PROTECTED ************************************************************/
+   /***************************************************************************/
+   /**** Constructors *********************************************************/
+   protected TextJoin
+   (
+      final Origin origin,
+      final Computation text_collection,
+      final Computation link
+   )
+   {
+      super(origin, Type.TEXT);
+
+      this.text_collection = text_collection;
+      this.link = link;
+   }
+
+   /***************************************************************************/
+   /**** PUBLIC ***************************************************************/
+   /***************************************************************************/
+
+   /**** Accessors ************************************************************/
+   public Computation get_text_collection ()
+   {
+      return text_collection;
+   }
+
+   public Computation get_link ()
+   {
+      return link;
+   }
+
+   /**** Misc. ****************************************************************/
+   @Override
+   public String toString ()
+   {
+      final StringBuilder sb = new StringBuilder();
+
+      sb.append("(TextJoin ");
+      sb.append(link.toString());
+      sb.append(" ");
+      sb.append(text_collection.toString());
+
+      sb.append(")");
+
+      return sb.toString();
+   }
+}
-- 
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