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335 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Localization, Internationalization, Globalization for Ada --
-- --
-- Tools Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2010-2012, 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: 3163 $ $Date: 2012-10-08 23:22:48 +0400 (Пн, 08 окт 2012) $
------------------------------------------------------------------------------
with Ada.Command_Line;
with Ada.Directories;
with Ada.Integer_Wide_Text_IO;
with Ada.Strings.Wide_Unbounded.Wide_Text_IO;
with Ada.Wide_Text_IO;
with Wide_Put_File_Header;
with Parser_Extractor;
package body Parser_Generator is
use Ada.Integer_Wide_Text_IO;
use Ada.Strings.Wide_Unbounded;
use Ada.Strings.Wide_Unbounded.Wide_Text_IO;
use Ada.Wide_Text_IO;
use Parser_Extractor;
function Parser_Template_File_Name return String;
-- Returns file name of the parser's template.
function Parser_File_Name return String;
-- Returns file name of the parser's implementation file.
function Parser_Tables_File_Name return String;
-- Returns file name of the parser's tables data.
----------------------
-- Parser_File_Name --
----------------------
function Parser_File_Name return String is
Template : constant String
:= Ada.Directories.Simple_Name (Parser_Template_File_Name);
begin
return Template (Template'First .. Template'Last - 3);
end Parser_File_Name;
-----------------------------
-- Parser_Tables_File_Name --
-----------------------------
function Parser_Tables_File_Name return String is
begin
return Ada.Directories.Base_Name (Parser_File_Name) & "-tables.ads";
end Parser_Tables_File_Name;
-------------------------------
-- Parser_Template_File_Name --
-------------------------------
function Parser_Template_File_Name return String is
begin
return Ada.Command_Line.Argument (3);
end Parser_Template_File_Name;
--------------------------
-- Generate_Parser_Code --
--------------------------
procedure Generate_Parser_Code is
Input : File_Type;
Output : File_Type;
Buffer : Wide_String (1 .. 1024);
Last : Natural;
begin
Open (Input, In_File, Parser_Template_File_Name, "wcem=8");
Create (Output, Out_File, Parser_File_Name, "wcem=8");
while not End_Of_File (Input) loop
Get_Line (Input, Buffer, Last);
if Buffer (1 .. Last) = "%%" then
for J in 1 .. Natural (Choices.Length) loop
declare
Element : constant Choice_Information := Choices.Element (J);
begin
if not Element.Is_Empty then
New_Line (Output);
Put (Output, " when ");
Put (Output, Element.Choice, 0);
Put_Line (Output, " =>");
for J in 1 .. Natural (Element.Text.Length) loop
if Length (Element.Text.Element (J)) /= 0 then
Put (Output, " ");
Put_Line (Output, Element.Text.Element (J));
else
New_Line (Output);
end if;
end loop;
end if;
end;
end loop;
else
Put_Line (Output, Buffer (1 .. Last));
end if;
end loop;
Close (Output);
Close (Input);
end Generate_Parser_Code;
----------------------------
-- Generate_Parser_Tables --
----------------------------
procedure Generate_Parser_Tables is
Output : File_Type;
procedure Generate_Array
(Name : Wide_String;
Values : Integer_Vectors.Vector);
procedure Generate_Array_Of_Pair
(Name : Wide_String;
Values : Pair_Vectors.Vector);
--------------------
-- Generate_Array --
--------------------
procedure Generate_Array
(Name : Wide_String;
Values : Integer_Vectors.Vector) is
begin
New_Line (Output);
Put (Output, " ");
Put (Output, Name);
Put (Output, " : constant array (0 .. ");
Put (Output, Integer (Values.Length) - 1, 0);
Put_Line (Output, ") of Integer :=");
for J in 0 .. Natural (Values.Length) - 1 loop
if J = 0 then
Put (Output, " (");
elsif J mod 8 = 0 then
Put_Line (Output, ",");
Put (Output, " ");
else
Put (Output, ",");
end if;
Put (Output, Values.Element (J), 5);
end loop;
Put_Line (Output, ");");
end Generate_Array;
----------------------------
-- Generate_Array_Of_Pair --
----------------------------
procedure Generate_Array_Of_Pair
(Name : Wide_String;
Values : Pair_Vectors.Vector) is
begin
New_Line (Output);
Put (Output, " YY_");
Put (Output, Name);
Put (Output, "_Matrix : constant array (");
Put (Output, Values.First_Index, 0);
Put (Output, " .. ");
Put (Output, Values.Last_Index, 0);
Put (Output, ") of ");
Put (Output, Name);
Put_Line (Output, "_Entry :=");
for J in Values.First_Index .. Values.Last_Index loop
if J = Values.First_Index then
Put (Output, " (");
elsif (J - Values.First_Index) mod 4 = 0 then
Put_Line (Output, ",");
Put (Output, " ");
else
Put (Output, ", ");
end if;
Put (Output, "(");
Put (Output, Values.Element (J).First, 5);
Put (Output, ", ");
Put (Output, Values.Element (J).Second, 5);
Put (Output, ")");
end loop;
Put_Line (Output, ");");
end Generate_Array_Of_Pair;
begin
Create (Output, Out_File, Parser_Tables_File_Name, "wcem=8");
if Ada.Command_Line.Argument (1) = "regexp" then
Wide_Put_File_Header
(Output,
"Localization, Internationalization, Globalization for Ada",
2010,
2010);
elsif Ada.Command_Line.Argument (1) = "xml" then
Wide_Put_File_Header
(Output,
"XML Processor",
2010,
2012);
end if;
Put_Line (Output, "pragma Style_Checks (""-t"");");
Put_Line
(Output,
"-- GNAT: Disable check for token separation rules, because format o"
& "f the");
Put_Line
(Output,
"-- tables is not compatible with them.");
New_Line (Output);
if Ada.Command_Line.Argument (1) = "regexp" then
Put (Output, "private package Matreshka.Internals.Regexps.Compiler");
elsif Ada.Command_Line.Argument (1) = "xml" then
Put (Output, "private package XML.SAX.Simple_Readers");
end if;
Put_Line (Output, ".Parser.Tables is");
if Ada.Command_Line.Argument (1) = "regexp" then
New_Line (Output);
Put_Line (Output, " pragma Preelaborate;");
end if;
New_Line (Output);
Put_Line (Output, " type Goto_Entry is record");
Put_Line (Output, " Nonterm : Integer;");
Put_Line (Output, " Newstate : Integer;");
Put_Line (Output, " end record;");
New_Line (Output);
Put_Line (Output, " type Shift_Reduce_Entry is record");
Put_Line (Output, " T : Integer;");
Put_Line (Output, " Act : Integer;");
Put_Line (Output, " end record;");
New_Line (Output);
Put (Output, " YY_Default : constant := ");
Put (Output, YY_Default, 5);
Put_Line (Output, ";");
Put (Output, " YY_First_Shift_Entry : constant := ");
Put (Output, YY_First_Shift_Entry, 5);
Put_Line (Output, ";");
Put (Output, " YY_Accept_Code : constant := ");
Put (Output, YY_Accept_Code, 5);
Put_Line (Output, ";");
Put (Output, " YY_Error_Code : constant := ");
Put (Output, YY_Error_Code, 5);
Put_Line (Output, ";");
-- Generate goto matrix
Generate_Array_Of_Pair ("Goto", YY_Goto_Matrix);
Generate_Array ("YY_Goto_Offset", YY_Goto_Offset);
Generate_Array ("YY_Rule_Length", YY_Rule_Length);
Generate_Array ("YY_Get_LHS_Rule", YY_Get_LHS_Rule);
-- Generate shitf-reduce matrix
Generate_Array_Of_Pair ("Shift_Reduce", YY_Shift_Reduce_Matrix);
Generate_Array ("YY_Shift_Reduce_Offset", YY_Shift_Reduce_Offset);
New_Line (Output);
if Ada.Command_Line.Argument (1) = "regexp" then
Put (Output, "end Matreshka.Internals.Regexps.Compiler");
elsif Ada.Command_Line.Argument (1) = "xml" then
Put (Output, "end XML.SAX.Simple_Readers");
end if;
Put_Line (Output, ".Parser.Tables;");
Close (Output);
end Generate_Parser_Tables;
end Parser_Generator;
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