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477 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Localization, Internationalization, Globalization for Ada --
-- --
-- Tools Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2010, Vadim Godunko <vgodunko@gmail.com> --
-- All rights reserved. --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions --
-- are met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in the --
-- documentation and/or other materials provided with the distribution. --
-- --
-- * Neither the name of the Vadim Godunko, IE nor the names of its --
-- contributors may be used to endorse or promote products derived from --
-- this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED --
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
-- $Revision: 527 $ $Date: 2010-06-16 14:22:28 +0400 (Ср, 16 июн 2010) $
------------------------------------------------------------------------------
with Ada.Characters.Conversions;
with Ada.Characters.Handling;
with GNAT.Regpat;
with Asis.Declarations;
with Asis.Definitions;
with Asis.Elements;
with Asis.Expressions;
with Asis.Iterator;
with Asis.Statements;
with Asis.Text;
package body Parser_Extractor is
type State_Information is null record;
procedure Process_Constant_Declaration (Element : Asis.Element);
procedure Process_Integer_Number_Declaration (Element : Asis.Element);
procedure Process_Case_Statement (Element : Asis.Element);
procedure Pre_Operation
(Element : Asis.Element;
Control : in out Asis.Traverse_Control;
State : in out State_Information);
procedure Post_Operation
(Element : Asis.Element;
Control : in out Asis.Traverse_Control;
State : in out State_Information) is null;
procedure Iterate is new Asis.Iterator.Traverse_Element (State_Information);
function To_Upper (Item : Wide_String) return Wide_String;
-------------
-- Extract --
-------------
procedure Extract (Element : Asis.Element) is
Control : Asis.Traverse_Control := Asis.Continue;
State : State_Information;
begin
Iterate (Element, Control, State);
end Extract;
-------------------
-- Pre_Operation --
-------------------
procedure Pre_Operation
(Element : Asis.Element;
Control : in out Asis.Traverse_Control;
State : in out State_Information) is
begin
case Asis.Elements.Element_Kind (Element) is
when Asis.A_Declaration =>
case Asis.Elements.Declaration_Kind (Element) is
when Asis.A_Constant_Declaration =>
Process_Constant_Declaration (Element);
when Asis.An_Integer_Number_Declaration =>
Process_Integer_Number_Declaration (Element);
when others =>
null;
end case;
when Asis.A_Statement =>
case Asis.Elements.Statement_Kind (Element) is
when Asis.A_Case_Statement =>
Process_Case_Statement (Element);
when others =>
null;
end case;
when others =>
null;
end case;
end Pre_Operation;
----------------------------
-- Process_Case_Statement --
----------------------------
procedure Process_Case_Statement (Element : Asis.Element) is
use type Asis.Expression_Kinds;
procedure Process_Choice
(Choice : Asis.Element;
Line : Positive;
File : Ada.Strings.Wide_Unbounded.Unbounded_Wide_String;
Text : Unbounded_Wide_String_Vectors.Vector);
--------------------
-- Process_Choice --
--------------------
procedure Process_Choice
(Choice : Asis.Element;
Line : Positive;
File : Ada.Strings.Wide_Unbounded.Unbounded_Wide_String;
Text : Unbounded_Wide_String_Vectors.Vector)
is
use type Ada.Strings.Wide_Unbounded.Unbounded_Wide_String;
Number : Natural;
begin
case Asis.Elements.Expression_Kind (Choice) is
when Asis.An_Integer_Literal =>
Number :=
Integer'Wide_Value (Asis.Expressions.Value_Image (Choice));
when others =>
null;
end case;
if Natural (Choices.Length) < Number then
Choices.Set_Length (Ada.Containers.Count_Type (Number));
end if;
Choices.Replace_Element (Number, (False, Number, Line, File, Text));
end Process_Choice;
Expression : constant Asis.Element :=
Asis.Statements.Case_Expression (Element);
Paths : constant Asis.Element_List :=
Asis.Statements.Statement_Paths (Element);
begin
if Asis.Elements.Expression_Kind (Expression) = Asis.A_Selected_Component
and then To_Upper
(Asis.Expressions.Name_Image
(Asis.Expressions.Selector (Expression))) = "RULE_ID"
then
for J in Paths'Range loop
declare
Choices : constant Asis.Element_List :=
Asis.Statements.Case_Statement_Alternative_Choices
(Paths (J));
Lines : constant Asis.Text.Line_List :=
Asis.Text.Lines (Paths (J));
Pattern : GNAT.Regpat.Pattern_Matcher :=
GNAT.Regpat.Compile ("--# line (\d+) ""(.*?)""");
Matched : Boolean := False;
Empty : Boolean := True;
Matches : GNAT.Regpat.Match_Array (0 .. 2);
Text : Unbounded_Wide_String_Vectors.Vector;
Line : Positive;
File : Ada.Strings.Wide_Unbounded.Unbounded_Wide_String;
begin
for J in Lines'Range loop
declare
Line_Image : constant Wide_String :=
Asis.Text.Line_Image (Lines (J));
begin
if not Matched then
GNAT.Regpat.Match
(Pattern,
Ada.Characters.Conversions.To_String (Line_Image),
Matches);
if Matches (0).First /= 0 then
Matched := True;
Line :=
Positive'Wide_Value
(Line_Image
(Matches (1).First .. Matches (1).Last));
File :=
Ada.Strings.Wide_Unbounded.To_Unbounded_Wide_String
(Line_Image
(Matches (2).First .. Matches (2).Last));
end if;
else
if Empty then
Empty := Line_Image'Length = 0;
end if;
if not Empty then
Text.Append
(Ada.Strings.Wide_Unbounded.To_Unbounded_Wide_String
(Line_Image));
end if;
end if;
end;
end loop;
if not Text.Is_Empty then
for J in Choices'Range loop
Process_Choice (Choices (J), Line, File, Text);
end loop;
end if;
end;
end loop;
end if;
end Process_Case_Statement;
----------------------------------
-- Process_Constant_Declaration --
----------------------------------
procedure Process_Constant_Declaration (Element : Asis.Element) is
procedure Process_Array_Of_Pair
(Expression : Asis.Element;
Values : out Pair_Vectors.Vector);
procedure Process_Array
(Expression : Asis.Element;
Values : out Integer_Vectors.Vector);
---------------------------
-- Process_Array_Of_Pair --
---------------------------
procedure Process_Array_Of_Pair
(Expression : Asis.Element;
Values : out Pair_Vectors.Vector)
is
Components : constant Asis.Element_List :=
Asis.Expressions.Array_Component_Associations (Expression);
begin
for J in Components'Range loop
declare
Pair_Components : constant Asis.Element_List :=
Asis.Expressions.Record_Component_Associations
(Asis.Expressions.Component_Expression (Components (J)));
Component_1 : constant Asis.Element :=
Asis.Expressions.Component_Expression (Pair_Components (1));
Component_2 : constant Asis.Element :=
Asis.Expressions.Component_Expression (Pair_Components (2));
Value : Pair;
begin
case Asis.Elements.Expression_Kind (Component_1) is
when Asis.An_Integer_Literal =>
Value.First :=
Integer'Wide_Value
(Asis.Expressions.Value_Image (Component_1));
when Asis.A_Function_Call =>
declare
Parameters : constant Asis.Element_List :=
Asis.Expressions.Function_Call_Parameters (Component_1);
Parameter : constant Asis.Element :=
Asis.Expressions.Actual_Parameter (Parameters (1));
begin
Value.First :=
-Integer'Wide_Value
(Asis.Expressions.Value_Image (Parameter));
end;
when others =>
null;
end case;
case Asis.Elements.Expression_Kind (Component_2) is
when Asis.An_Integer_Literal =>
Value.Second :=
Integer'Wide_Value
(Asis.Expressions.Value_Image (Component_2));
when Asis.A_Function_Call =>
declare
Parameters : constant Asis.Element_List :=
Asis.Expressions.Function_Call_Parameters (Component_2);
Parameter : constant Asis.Element :=
Asis.Expressions.Actual_Parameter (Parameters (1));
begin
Value.Second :=
-Integer'Wide_Value
(Asis.Expressions.Value_Image (Parameter));
end;
when others =>
null;
end case;
Values.Append (Value);
end;
end loop;
end Process_Array_Of_Pair;
-------------------
-- Process_Array --
-------------------
procedure Process_Array
(Expression : Asis.Element;
Values : out Integer_Vectors.Vector)
is
Components : constant Asis.Element_List :=
Asis.Expressions.Array_Component_Associations (Expression);
begin
for J in Components'Range loop
declare
Expression : constant Asis.Element :=
Asis.Expressions.Component_Expression (Components (J));
begin
case Asis.Elements.Expression_Kind (Expression) is
when Asis.An_Integer_Literal =>
Values.Append
(Integer'Wide_Value
(Asis.Expressions.Value_Image (Expression)));
when Asis.A_Function_Call =>
declare
Parameters : constant Asis.Element_List :=
Asis.Expressions.Function_Call_Parameters
(Expression);
Parameter : constant Asis.Element :=
Asis.Expressions.Actual_Parameter (Parameters (1));
begin
Values.Append
(-Integer'Wide_Value
(Asis.Expressions.Value_Image (Parameter)));
end;
when others =>
null;
end case;
end;
end loop;
end Process_Array;
Names : constant Asis.Element_List := Asis.Declarations.Names (Element);
begin
for J in Names'Range loop
declare
Image : constant Wide_String :=
To_Upper (Asis.Declarations.Defining_Name_Image (Names (J)));
Expression : constant Asis.Element :=
Asis.Declarations.Initialization_Expression (Element);
begin
if Image = "GOTO_MATRIX" then
Process_Array_Of_Pair (Expression, YY_Goto_Matrix);
elsif Image = "GOTO_OFFSET" then
Process_Array (Expression, YY_Goto_Offset);
elsif Image = "RULE_LENGTH" then
Process_Array (Expression, YY_Rule_Length);
elsif Image = "GET_LHS_RULE" then
Process_Array (Expression, YY_Get_LHS_Rule);
elsif Image = "SHIFT_REDUCE_MATRIX" then
Process_Array_Of_Pair (Expression, YY_Shift_Reduce_Matrix);
elsif Image = "SHIFT_REDUCE_OFFSET" then
Process_Array (Expression, YY_Shift_Reduce_Offset);
end if;
end;
end loop;
end Process_Constant_Declaration;
----------------------------------------
-- Process_Integer_Number_Declaration --
----------------------------------------
procedure Process_Integer_Number_Declaration (Element : Asis.Element) is
Names : Asis.Element_List := Asis.Declarations.Names (Element);
begin
for J in Names'Range loop
declare
Image : constant Wide_String :=
To_Upper (Asis.Declarations.Defining_Name_Image (Names (J)));
Expression : constant Asis.Element :=
Asis.Declarations.Initialization_Expression (Element);
begin
if Image = "DEFAULT" then
YY_Default :=
-Integer'Wide_Value
(Asis.Expressions.Value_Image
(Asis.Expressions.Actual_Parameter
(Asis.Expressions.Function_Call_Parameters
(Expression) (1))));
elsif Image = "FIRST_SHIFT_ENTRY" then
YY_First_Shift_Entry :=
Integer'Wide_Value
(Asis.Expressions.Value_Image (Expression));
elsif Image = "ACCEPT_CODE" then
YY_Accept_Code :=
-Integer'Wide_Value
(Asis.Expressions.Value_Image
(Asis.Expressions.Actual_Parameter
(Asis.Expressions.Function_Call_Parameters
(Expression) (1))));
elsif Image = "ERROR_CODE" then
YY_Error_Code :=
-Integer'Wide_Value
(Asis.Expressions.Value_Image
(Asis.Expressions.Actual_Parameter
(Asis.Expressions.Function_Call_Parameters
(Expression) (1))));
end if;
end;
end loop;
end Process_Integer_Number_Declaration;
--------------
-- To_Upper --
--------------
function To_Upper (Item : Wide_String) return Wide_String is
begin
return
Ada.Characters.Conversions.To_Wide_String
(Ada.Characters.Handling.To_Upper
(Ada.Characters.Conversions.To_String (Item)));
end To_Upper;
end Parser_Extractor;
|