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378 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- XML Processor --
-- --
-- Testsuite Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2010-2011, 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: 1484 $ $Date: 2011-02-17 12:59:46 +0300 (Чт, 17 фев 2011) $
------------------------------------------------------------------------------
with Ada.Characters.Wide_Wide_Latin_1;
with Ada.Containers.Ordered_Maps;
with Ada.Strings.Wide_Wide_Fixed;
package body XMLConf.Canonical_Writers is
use Ada.Characters.Wide_Wide_Latin_1;
use type League.Strings.Universal_String;
package Universal_String_Integer_Maps is
new Ada.Containers.Ordered_Maps
(League.Strings.Universal_String, Positive);
function Escape_Character_Data
(Item : League.Strings.Universal_String;
Version : XML_Version)
return League.Strings.Universal_String;
-- Escape character data according to canonical form representation.
-- '&', '<', '>' and '"' characters are replaced by general entity
-- reference; TAB, CR and LF characters are replaced by character
-- reference in hexadecimal format.
procedure Set_Version (Self : in out Canonical_Writer);
-- Sets version.
----------------
-- Characters --
----------------
overriding procedure Characters
(Self : in out Canonical_Writer;
Text : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Self.Result.Append (Escape_Character_Data (Text, Self.Version));
end Characters;
-------------
-- End_DTD --
-------------
overriding procedure End_DTD
(Self : in out Canonical_Writer;
Success : in out Boolean)
is
procedure Output_Notation (Position : Notation_Maps.Cursor);
-- Outputs notation declaration.
---------------------
-- Output_Notation --
---------------------
procedure Output_Notation (Position : Notation_Maps.Cursor) is
Notation : constant Notation_Information
:= Notation_Maps.Element (Position);
begin
if Notation.Public_Id.Is_Empty then
Self.Result.Append
("<!NOTATION "
& Notation.Name
& " SYSTEM '"
& Notation.System_Id
& "'>"
& LF);
elsif Notation.System_Id.Is_Empty then
Self.Result.Append
("<!NOTATION "
& Notation.Name
& " PUBLIC '"
& Notation.Public_Id
& "'>"
& LF);
else
Self.Result.Append
("<!NOTATION "
& Notation.Name
& " PUBLIC '"
& Notation.Public_Id
& "' '"
& Notation.System_Id
& "'>"
& LF);
end if;
end Output_Notation;
begin
if not Self.Notations.Is_Empty then
Self.Result.Append ("<!DOCTYPE " & Self.Name & " [" & LF);
Self.Notations.Iterate (Output_Notation'Access);
Self.Result.Append
(League.Strings.To_Universal_String ("]>" & LF));
end if;
end End_DTD;
-----------------
-- End_Element --
-----------------
overriding procedure End_Element
(Self : in out Canonical_Writer;
Namespace_URI : League.Strings.Universal_String;
Local_Name : League.Strings.Universal_String;
Qualified_Name : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Self.Result.Append ("</" & Qualified_Name & ">");
end End_Element;
------------------
-- Error_String --
------------------
overriding function Error_String
(Self : Canonical_Writer) return League.Strings.Universal_String is
begin
return League.Strings.Empty_Universal_String;
end Error_String;
---------------------------
-- Escape_Character_Data --
---------------------------
function Escape_Character_Data
(Item : League.Strings.Universal_String;
Version : XML_Version)
return League.Strings.Universal_String
is
Result : League.Strings.Universal_String := Item;
C : Wide_Wide_Character;
begin
for J in reverse 1 .. Item.Length loop
C := Result.Element (J).To_Wide_Wide_Character;
if C = '&' then
Result.Replace (J, J, "&");
elsif C = '<' then
Result.Replace (J, J, "<");
elsif C = '>' then
Result.Replace (J, J, ">");
elsif C = '"' then
Result.Replace (J, J, """);
else
case Version is
when Unspecified =>
raise Program_Error;
when XML_1_0 =>
if C = Wide_Wide_Character'Val (9) then
Result.Replace (J, J, "	");
elsif C = Wide_Wide_Character'Val (10) then
Result.Replace (J, J, " ");
elsif C = Wide_Wide_Character'Val (13) then
Result.Replace (J, J, " ");
end if;
when XML_1_1 =>
if C in Wide_Wide_Character'Val (16#01#)
.. Wide_Wide_Character'Val (16#1F#)
or C in Wide_Wide_Character'Val (16#7F#)
.. Wide_Wide_Character'Val (16#9F#)
then
Result.Replace
(J,
J,
"&#"
& Ada.Strings.Wide_Wide_Fixed.Trim
(Integer'Wide_Wide_Image
(Wide_Wide_Character'Pos (C)),
Ada.Strings.Both)
& ";");
end if;
end case;
end if;
end loop;
return Result;
end Escape_Character_Data;
--------------------------
-- Ignorable_Whitespace --
--------------------------
overriding procedure Ignorable_Whitespace
(Self : in out Canonical_Writer;
Text : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Set_Version (Self);
Self.Result.Append (Escape_Character_Data (Text, Self.Version));
end Ignorable_Whitespace;
--------------------------
-- Notation_Declaration --
--------------------------
overriding procedure Notation_Declaration
(Self : in out Canonical_Writer;
Name : League.Strings.Universal_String;
Public_Id : League.Strings.Universal_String;
System_Id : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Self.Notations.Insert (Name, (Name, Public_Id, System_Id));
end Notation_Declaration;
----------------------------
-- Processing_Instruction --
----------------------------
overriding procedure Processing_Instruction
(Self : in out Canonical_Writer;
Target : League.Strings.Universal_String;
Data : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Set_Version (Self);
Self.Result.Append ("<?" & Target & " " & Data & "?>");
end Processing_Instruction;
--------------------------
-- Set_Document_Locator --
--------------------------
overriding procedure Set_Document_Locator
(Self : in out Canonical_Writer;
Locator : XML.SAX.Locators.SAX_Locator) is
begin
Self.Locator := Locator;
end Set_Document_Locator;
-----------------
-- Set_Version --
-----------------
procedure Set_Version (Self : in out Canonical_Writer) is
use League.Strings;
begin
if Self.Version = Unspecified then
if Self.Locator.Version = To_Universal_String ("1.0") then
Self.Version := XML_1_0;
elsif Self.Locator.Version = To_Universal_String ("1.1") then
-- Self.Result.Prepend ("<?xml version=""1.1""?>");
Self.Result := "<?xml version=""1.1""?>" & Self.Result;
Self.Version := XML_1_1;
else
raise Program_Error;
end if;
end if;
end Set_Version;
---------------
-- Start_DTD --
---------------
overriding procedure Start_DTD
(Self : in out Canonical_Writer;
Name : League.Strings.Universal_String;
Public_Id : League.Strings.Universal_String;
System_Id : League.Strings.Universal_String;
Success : in out Boolean) is
begin
Set_Version (Self);
Self.Name := Name;
end Start_DTD;
-------------------
-- Start_Element --
-------------------
overriding procedure Start_Element
(Self : in out Canonical_Writer;
Namespace_URI : League.Strings.Universal_String;
Local_Name : League.Strings.Universal_String;
Qualified_Name : League.Strings.Universal_String;
Attributes : XML.SAX.Attributes.SAX_Attributes;
Success : in out Boolean)
is
use League.Strings;
use Universal_String_Integer_Maps;
Map : Universal_String_Integer_Maps.Map;
Position : Universal_String_Integer_Maps.Cursor;
Index : Positive;
begin
Set_Version (Self);
Self.Result.Append ("<" & Qualified_Name);
for J in 1 .. Attributes.Length loop
Map.Insert (Attributes.Qualified_Name (J), J);
end loop;
Position := Map.First;
while Has_Element (Position) loop
Index := Element (Position);
Self.Result.Append
(" "
& Attributes.Qualified_Name (Index)
& "="""
& Escape_Character_Data (Attributes.Value (Index), Self.Version)
& '"');
Next (Position);
end loop;
Self.Result.Append ('>');
end Start_Element;
----------
-- Text --
----------
function Text
(Self : Canonical_Writer) return League.Strings.Universal_String is
begin
return Self.Result;
end Text;
end XMLConf.Canonical_Writers;
|