Added license note stuff to CLI

cli.py

@@ -19,6 +19,13 @@ import sys
 from intern import main_class
 
 if len(sys.argv) == 1: # CLI loop
+    # Show copyright note
+    print("pilang  Copyright (C) 2020  niansa")
+    print("This program comes with ABSOLUTELY NO WARRANTY; for details type `warranty'.")
+    print("This is free software, and you are welcome to redistribute it")
+    print("under certain conditions; type `license' for details.")
+    print("")
+    # Initialise interpreter
     main = main_class()
     while True:
         print(">>> ", end="", flush=True)

modules/help.py

@@ -0,0 +1,61 @@
+"""
+This file is part of pilang.
+
+pilang is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+pilang is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with pilang.  If not, see <https://www.gnu.org/licenses/>.
+"""
+import sys
+import rtypes
+
+licensenote = """pilang - a litttle, fun, weird programming language!
+Copyright (C) 2020  niansa
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>."""
+
+
+class help:
+    def __init__(self, environ):
+        self.commands = {
+            "help": self.cmd_help,
+            "license": self.cmd_license,
+            "copyright": self.cmd_license
+            }
+        self.environ = environ
+    
+    
+    def processor(self, command, args):
+        try:
+            return self.commands[command](args)
+        except KeyError:
+            return errors.nochsuchcmd
+    
+    def cmd_help(self, args):
+        return "No documentation yet.."
+    
+    def cmd_license(self, args):
+        return licensenote
+
+
+def adder(registerer):
+    registerer(help)