* Flush current Python implem.

src/frontends/aadl/ocarina-fe_aadl-parser.adb

@@ -81,7 +81,7 @@ package body Ocarina.FE_AADL.Parser is
 
       Initialize_Option_Scan;
       loop
-         C := Getopt ("* y s f I:");
+         C := Getopt ("* y s f w I:");
          case C is
             when ASCII.NUL =>
                exit;
@@ -92,7 +92,7 @@ package body Ocarina.FE_AADL.Parser is
             when 'I' =>
                Add_Library_Path (Parameter);
 
-            when 'f' | 's' =>
+            when 'f' | 's' | 'w' =>
                Add_Pre_Prop_Sets := True;
 
             when others =>

src/main/ocarina-python.adb

@@ -31,18 +31,15 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
-with Ada.Text_IO;             use Ada.Text_IO;
-with GNATCOLL.Scripts;        use GNATCOLL.Scripts;
-with GNATCOLL.Scripts.Python; use GNATCOLL.Scripts.Python;
+with Ada.Directories;           use Ada.Directories;
+with Ada.Environment_Variables; use Ada.Environment_Variables;
+with Ada.Text_IO;               use Ada.Text_IO;
 
-with Ocarina.Utils;
+with GNATCOLL.Scripts;          use GNATCOLL.Scripts;
 
-package body Ocarina.Python is
+with Ocarina.Python_Cmd;
 
-   function Register_Scripts_And_Functions
-     return GNATCOLL.Scripts.Scripts_Repository;
-   --  Register the various scripting languages and the functions we
-   --  export to them
+package body Ocarina.Python is
 
    -------------
    -- Console --
@@ -116,92 +113,73 @@ package body Ocarina.Python is
       Put (Standard_Error, Txt);
    end Insert_Error;
 
-   ----------------
-   -- On_Version --
-   ----------------
-
-   procedure On_Version (Data : in out Callback_Data'Class; Command : String);
-
-   procedure On_Version
-     (Data : in out Callback_Data'Class;
-      Command : String)
-   is
-      pragma Unreferenced (Data, Command);
-   begin
-      Ocarina.Utils.Version;
-   end On_Version;
-
-   ---------------
-   -- On_Status --
-   ---------------
-
-   procedure On_Status (Data : in out Callback_Data'Class; Command : String);
-
-   procedure On_Status
-     (Data : in out Callback_Data'Class;
-      Command : String)
-   is
-      pragma Unreferenced (Data, Command);
-   begin
-      Ocarina.Utils.Print_Status;
-   end On_Status;
-
-   ------------------------------------
-   -- Register_Scripts_And_Functions --
-   ------------------------------------
-
-   function Register_Scripts_And_Functions return Scripts_Repository is
-      Repo : Scripts_Repository;
-   begin
-      --  Register all scripting languages. In practice, you only need to
-      --  register those you intend to support
-
-      Repo := new Scripts_Repository_Record;
-      Register_Python_Scripting (Repo, "Ocarina");
-      Register_Standard_Classes (Repo, "Console");
-
-      --  Register our custom functions
-
-      --  version() function
-      Register_Command
-        (Repo, "version", 0, 0, Handler => On_Version'Unrestricted_Access);
-
-      --  status() function
-      Register_Command
-        (Repo, "status", 0, 0, Handler => On_Status'Unrestricted_Access);
-
-      return Repo;
-   end Register_Scripts_And_Functions;
-
    ----------------
    -- Run_Python --
    ----------------
 
    procedure Run_Python is
-      Repo   : Scripts_Repository := Register_Scripts_And_Functions;
+      Repo   : Scripts_Repository :=
+        Ocarina.Python_Cmd.Register_Scripts_And_Functions;
       Buffer : String (1 .. 1000);
       Last   : Integer;
       Errors : Boolean;
       Console : aliased Text_Console;
-   begin
-      Put_Line ("Ocarina interactive Python shell");
-      Put_Line ("Please type python commands:");
 
-      Set_Default_Console
-        (Lookup_Scripting_Language (Repo, "python"), Console'Unchecked_Access);
+      File : Ada.Text_IO.File_Type;
+   begin
+      --  Detect whether we are calling Ocarina directly, implying an
+      --  interactive session, or using it through a specific scripts.
+
+      declare
+         Env_Underscore : constant String := Value ("_");
+         --  This magic env. variable stores the name of the current
+         --  function being used.
+
+      begin
+         if Base_Name (Env_Underscore) = "ocarina" then
+            --  XXX to be tested on Windows ...
+
+            Put_Line ("Ocarina interactive Python shell");
+            Put_Line ("Please type python commands:");
+            Set_Default_Console
+              (Lookup_Scripting_Language (Repo, "python"),
+               Console'Unchecked_Access);
+         else
+            Ada.Text_IO.Open (File, Ada.Text_IO.In_File, Env_Underscore);
+            Set_Input (File);
+         end if;
+      end;
+
+      --  Iterate over all lines for the input buffer
 
       loop
-         Get_Line (Buffer, Last);
-         Execute_Command
-           (Script       => Lookup_Scripting_Language (Repo, "python"),
-            Command      => Buffer (1 .. Last),
-            Show_Command => False,
-            Hide_Output  => False,
-            Errors       => Errors);
+         Get_Line (Current_Input, Buffer, Last);
+
+         --  Remove comments
+
+         for J in Buffer'First .. Last loop
+            if Buffer (J) = '#' then
+               Last := J;
+               exit;
+            end if;
+         end loop;
+
+         if Last > Buffer'First then
+            Execute_Command
+              (Script       => Lookup_Scripting_Language (Repo, "python"),
+               Command      => Buffer (Buffer'First .. Last),
+               Show_Command => False,
+               Hide_Output  => False,
+               Errors       => Errors);
+         end if;
       end loop;
+
    exception
       when End_Error =>
          Destroy (Repo);
+         if Is_Open (File) then
+            Close (File);
+         end if;
    end Run_Python;
 
 end Ocarina.Python;

src/main/ocarina-python_cmd.adb

+with GNATCOLL.Scripts;        use GNATCOLL.Scripts;
+with GNATCOLL.Scripts.Python; use GNATCOLL.Scripts.Python;
+
+with Ocarina.Utils;
+
+package body Ocarina.Python_Cmd is
+
+   ----------------
+   -- On_Version --
+   ----------------
+
+   procedure On_Version (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Version
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Data, Command);
+   begin
+      Ocarina.Utils.Version;
+   end On_Version;
+
+   ---------------
+   -- On_Status --
+   ---------------
+
+   procedure On_Status (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Status
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Data, Command);
+   begin
+      Ocarina.Utils.Print_Status;
+   end On_Status;
+
+   -----------------------
+   -- On_Load_AADL_File --
+   -----------------------
+
+   procedure On_Load_AADL_File
+     (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Load_AADL_File
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Command);
+   begin
+      Ocarina.Utils.Load_AADL_File (Nth_Arg (Data, 1, ""));
+   end On_Load_AADL_File;
+
+   --------------------
+   -- On_Instantiate --
+   ---------------------
+
+   procedure On_Instantiate
+     (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Instantiate
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Command);
+   begin
+      Ocarina.Utils.Instantiate (Nth_Arg (Data, 1, ""));
+   end On_Instantiate;
+
+   ----------------
+   -- On_Analyze --
+   ----------------
+
+   procedure On_Analyze
+     (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Analyze
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Command, Data);
+   begin
+      Ocarina.Utils.Analyze;
+   end On_Analyze;
+
+   -----------------
+   -- On_Generate --
+   -----------------
+
+   procedure On_Generate
+     (Data : in out Callback_Data'Class; Command : String);
+
+   procedure On_Generate
+     (Data : in out Callback_Data'Class;
+      Command : String)
+   is
+      pragma Unreferenced (Command);
+   begin
+      Ocarina.Utils.Generate (Nth_Arg (Data, 1, ""));
+   end On_Generate;
+
+   ------------------------------------
+   -- Register_Scripts_And_Functions --
+   ------------------------------------
+
+   function Register_Scripts_And_Functions return Scripts_Repository is
+      Repo : Scripts_Repository;
+   begin
+      --  Register all scripting languages. In practice, you only need to
+      --  register those you intend to support
+
+      Repo := new Scripts_Repository_Record;
+      Register_Python_Scripting (Repo, "ocarina");
+      Register_Standard_Classes (Repo, "Console");
+
+      --  Register our custom functions
+
+      --  version() function
+      Register_Command
+        (Repo, "version", 0, 0, Handler => On_Version'Unrestricted_Access);
+
+      --  status() function
+      Register_Command
+        (Repo, "status", 0, 0, Handler => On_Status'Unrestricted_Access);
+
+      --  load() function
+      Register_Command
+        (Repo, "load", 1, 1, Handler => On_Load_AADL_File'Unrestricted_Access);
+
+      --  analyze() function
+      Register_Command
+        (Repo, "analyze", 0, 0,
+         Handler => On_Analyze'Unrestricted_Access);
+
+      --  instantiate() function
+      Register_Command
+        (Repo, "instantiate", 1, 1,
+         Handler => On_Instantiate'Unrestricted_Access);
+
+      --  generate() function
+      Register_Command
+        (Repo, "generate", 1, 1,
+         Handler => On_Generate'Unrestricted_Access);
+
+      return Repo;
+   end Register_Scripts_And_Functions;
+
+end Ocarina.Python_Cmd;

src/main/ocarina-python_cmd.ads

+with GNATCOLL.Scripts;
+
+package Ocarina.Python_Cmd is
+
+   --  This package provides a central access to register functions to
+   --  the Python bindings
+
+   function Register_Scripts_And_Functions
+     return GNATCOLL.Scripts.Scripts_Repository;
+   --  Register the Python scripting language, and the functions we
+   --  export
+
+end Ocarina.Python_Cmd;

src/main/ocarina-scripts.adb

@@ -32,11 +32,9 @@
 ------------------------------------------------------------------------------
 
 with Errors;                           use Errors;
-with Locations;                        use Locations;
 with Namet;                            use Namet;
 with Output;                           use Output;
 with Types;                            use Types;
-with Utils;                            use Utils;
 
 with Ada.Unchecked_Deallocation;
 with Ada.Exceptions;                   use Ada.Exceptions;
@@ -45,13 +43,8 @@ with Ada.Text_IO;
 
 with GNAT.OS_Lib;                      use GNAT.OS_Lib;
 
-with Ocarina.Parser;                   use Ocarina.Parser;
 with Ocarina.Backends;                 use Ocarina.Backends;
-
-with Ocarina.Files;                    use Ocarina.Files;
 with Ocarina.Instances;                use Ocarina.Instances;
-with Ocarina.Options;                  use Ocarina.Options;
-with Ocarina.Analyzer;                 use Ocarina.Analyzer;
 with Ocarina.Transfo.Fusions;          use Ocarina.Transfo.Fusions;
 with Ocarina.Transfo.Move;             use Ocarina.Transfo.Move;
 with Ocarina.Transfo.Optim;            use Ocarina.Transfo.Optim;
@@ -64,7 +57,6 @@ package body Ocarina.Scripts is
    -------------------
 
    procedure Ocarina_Shell is
-
       use Ada.Text_IO;
 
       function "+" (S : String) return String_Access;
@@ -100,10 +92,7 @@ package body Ocarina.Scripts is
       Cmmd    : Command;
       Success : Boolean;
 
-      AADL_Root             : Node_Id := No_Node;
-      File_Name             : Name_Id;
-      Buffer                : Location;
-      Language              : Name_Id;
+      AADL_Root             : constant Node_Id := No_Node;
 
       ---------
       -- "+" --
@@ -251,15 +240,12 @@ package body Ocarina.Scripts is
       end Next;
 
    begin
-      Language := Get_String_Name ("aadl");
-
       if Standard_Input then
          Write_Line ("Ocarina shell, type help for information");
       end if;
 
       --  Console main loop: read inputs and process them
 
-      <<Main>>
       loop
          Argc := Count;
          if Argc > 0
@@ -280,59 +266,26 @@ package body Ocarina.Scripts is
                      Show_Help;
 
                   when Analyze =>
-                     Success := Analyze (Language, AADL_Root);
-                     if not Success then
-                        Write_Line ("Cannot analyze AADL specifications");
-                     else
-                        Write_Line ("Model analyzed sucessfully");
-                     end if;
+                     Ocarina.Utils.Analyze;
 
                   when Instantiate =>
                      if Argc = 2 then
-                        Root_System_Name := To_Lower
-                          (Get_String_Name (Argument (2).all));
-                     end if;
-                     AADL_Root := Instantiate_Model (AADL_Root);
-                     if Present (AADL_Root) then
-                        Write_Line ("Model instantiated sucessfully");
+                        Ocarina.Utils.Instantiate (Argument (2).all);
+                     else
+                        Ocarina.Utils.Instantiate ("");
                      end if;
 
                   when Generate =>
                      if Argc /= 2 then
                         raise Syntax_Error;
                      end if;
-                     Set_Current_Backend_Name (Argument (2).all);
-                     Write_Line ("Generating code for "
-                                 & Argument (2).all);
-                     Generate_Code (AADL_Root);
+                     Ocarina.Utils.Generate (Argument (2).all);
 
                   when Load =>
                      if Argc /= 2 then
                         raise Syntax_Error;
                      end if;
-                     Set_Str_To_Name_Buffer (Argument (2).all);
-
-                     File_Name := Search_File (Name_Find);
-                     if File_Name = No_Name then
-                        Write_Line ("cannot find file "
-                                      & Argument (2).all);
-                        goto Main;
-                     end if;
-
-                     Buffer := Load_File (File_Name);
-                     if File_Name = No_Name then
-                        Write_Line ("cannot read file "
-                                      & Argument (2).all);
-                        goto Main;
-                     end if;
-                     AADL_Root := Parse (Language, AADL_Root, Buffer);
-                     Exit_On_Error
-                       (No (AADL_Root),
-                        "cannot parse AADL specifications");
-
-                     Write_Line
-                       ("File " & Argument (2).all
-                        & " loaded and parsed sucessfully");
+                     Ocarina.Utils.Load_AADL_File (Argument (2).all);
 
                   when Brute_Optimize =>
                      declare

src/main/ocarina-utils.adb

@@ -35,17 +35,31 @@ with Ada.Command_Line;           use Ada.Command_Line;
 with GNAT.Directory_Operations;  use GNAT.Directory_Operations;
 with GNAT.OS_Lib;                use GNAT.OS_Lib;
 
+with Errors;                     use Errors;
+with Locations;                  use Locations;
 with Namet;                      use Namet;
 with Output;                     use Output;
+with Types;                      use Types;
+with Utils;                      use Utils;
 
+with Ocarina.Analyzer;           use Ocarina.Analyzer;
 with Ocarina.Backends;           use Ocarina.Backends;
 with Ocarina.Configuration;      use Ocarina.Configuration;
 with Ocarina.FE_AADL;            use Ocarina.FE_AADL;
+with Ocarina.FE_AADL.Parser;
 with Ocarina.FE_REAL;            use Ocarina.FE_REAL;
-with Ocarina.Options; use Ocarina.Options;
+with Ocarina.Instances;          use Ocarina.Instances;
+with Ocarina.Parser;             use Ocarina.Parser;
+with Ocarina.Options;            use Ocarina.Options;
+with Ocarina.Files;              use Ocarina.Files;
 
 package body Ocarina.Utils is
 
+   AADL_Root             : Node_Id := No_Node;
+   File_Name             : Name_Id;
+   Buffer                : Location;
+   Language              : Name_Id;
+
    -------------
    -- Version --
    -------------
@@ -74,6 +88,8 @@ package body Ocarina.Utils is
       Write_Line ("AADL version: " & Ocarina.AADL_Version'Img);
       Write_Line ("Library Path: "
                     & Get_Name_String (Default_Library_Path));
+      Write_Line ("Load predefined property sets "
+                    & Ocarina.FE_AADL.Parser.Add_Pre_Prop_Sets'Img);
    end Print_Status;
 
    -----------
@@ -134,4 +150,76 @@ package body Ocarina.Utils is
       Free (Exec_Suffix);
    end Usage;
 
+   --------------------
+   -- Load_AADL_File --
+   --------------------
+
+   procedure Load_AADL_File (Filename : String) is
+   begin
+      Language := Get_String_Name ("aadl");
+      Set_Str_To_Name_Buffer (Filename);
+
+      File_Name := Search_File (Name_Find);
+      if File_Name = No_Name then
+         Write_Line ("Cannot find file " & Filename);
+         return;
+      end if;
+
+      Buffer := Load_File (File_Name);
+      if File_Name = No_Name then
+         Write_Line ("Cannot read file " & Filename);
+         return;
+      end if;
+
+      AADL_Root := Parse (Language, AADL_Root, Buffer);
+      Exit_On_Error
+        (No (AADL_Root),
+         "Cannot parse AADL specifications");
+      Write_Line
+        ("File " & Filename
+           & " loaded and parsed sucessfully");
+   end Load_AADL_File;
+
+   -------------
+   -- Analyze --
+   -------------
+
+   procedure Analyze is
+      Success : Boolean;
+   begin
+      Success := Analyze (Language, AADL_Root);
+      if not Success then
+         Write_Line ("Cannot analyze AADL specifications");
+      else
+         Write_Line ("Model analyzed sucessfully");
+      end if;
+   end Analyze;
+
+   -----------------
+   -- Instantiate --
+   -----------------
+
+   procedure Instantiate (Root_System : String) is
+   begin
+      if Root_System /= "" then
+         Root_System_Name := To_Lower
+           (Get_String_Name (Root_System));
+      end if;
+      AADL_Root := Instantiate_Model (AADL_Root);
+      if Present (AADL_Root) then
+         Write_Line ("Model instantiated sucessfully");
+      end if;
+   end Instantiate;
+
+   --------------
+   -- Generate --
+   --------------
+
+   procedure Generate (Backend_Name : String) is
+   begin
+      Set_Current_Backend_Name (Backend_Name);
+      Write_Line ("Generating code using backend " & Backend_Name);
+      Generate_Code (AADL_Root);
+   end Generate;
+
 end Ocarina.Utils;

src/main/ocarina-utils.ads

@@ -40,5 +40,11 @@ package Ocarina.Utils is
    --  Display a message describing the usage of Ocarina
 
    procedure Print_Status;
+   --  Display status information on Ocarina
+
+   procedure Load_AADL_File (Filename : String);
+   procedure Analyze;
+   procedure Instantiate (Root_System : String);
+   procedure Generate (Backend_Name : String);
 
 end Ocarina.Utils;

src/main/ocarina_cmd.adb

@@ -67,9 +67,9 @@ with Ocarina.Parser;                   use Ocarina.Parser;
 with Ocarina.Property_Sets;            use Ocarina.Property_Sets;
 with Ocarina.FE_AADL.Parser;           use Ocarina.FE_AADL.Parser;
 with Ocarina.ME_REAL.Tokens;
-with Ocarina.Scripts;                    use Ocarina.Scripts;
-with Ocarina.Utils; use Ocarina.Utils;
-with Ocarina.Python; use Ocarina.Python;
+with Ocarina.Scripts;                  use Ocarina.Scripts;
+with Ocarina.Utils;                    use Ocarina.Utils;
+with Ocarina.Python;                   use Ocarina.Python;
 with Ocarina.ME_AADL.AADL_Instances.Nodes;