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------------------------------------------------------------------------------
-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2010-2017, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- --
-- --
-- --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
pragma Ada_05;
with Ada.Text_IO; use Ada.Text_IO;
with Input_Sources.File; use Input_Sources.File;
with Input_Sources; use Input_Sources;
with Sax.Exceptions; use Sax.Exceptions;
with Sax.Readers; use Sax.Readers;
with Sax.Symbols; use Sax.Symbols;
with Sax.Utils; use Sax.Utils;
with Unicode.CES; use Unicode.CES;
procedure Cleanup_Schema is
type My_Reader is new Sax.Readers.Reader with record
In_Annotation : Natural := 0;
Omit_Schema_Node : Boolean := False;
-- If True, will not display the schema node
Open_Tag_Was_Closed : Boolean := True;
-- Whether the <open> tag of the current node was closed. This is so
-- that we can have empty nodes printed as <open/>.
end record;
overriding procedure Error
(Handler : in out My_Reader;
Except : Sax.Exceptions.Sax_Parse_Exception'Class) is null;
overriding procedure Start_Element
(Handler : in out My_Reader;
NS : Sax.Utils.XML_NS;
Local_Name : Sax.Symbols.Symbol;
Atts : Sax_Attribute_List);
overriding procedure End_Element
(Handler : in out My_Reader;
NS : Sax.Utils.XML_NS;
Local_Name : Sax.Symbols.Symbol);
overriding procedure Characters
(Handler : in out My_Reader;
Ch : Unicode.CES.Byte_Sequence);
overriding procedure Ignorable_Whitespace
(Handler : in out My_Reader;
Ch : Unicode.CES.Byte_Sequence) is null;
procedure Put_Prefix (P : Symbol);
-- Print "P:" if [P] is defined
----------------
-- Put_Prefix --
----------------
procedure Put_Prefix (P : Symbol) is
begin
if P /= No_Symbol and then P /= Empty_String then
Put (Get (P).all & ":");
end if;
end Put_Prefix;
-------------------
-- Start_Element --
-------------------
overriding procedure Start_Element
(Handler : in out My_Reader;
NS : Sax.Utils.XML_NS;
Local_Name : Sax.Symbols.Symbol;
Atts : Sax_Attribute_List)
is
Att_Length : constant Natural := Get_Length (Atts);
begin
if Handler.Omit_Schema_Node and then Local_Name = "schema" then
return;
end if;
if not Handler.Open_Tag_Was_Closed then
Put (">");
Handler.Open_Tag_Was_Closed := True;
end if;
if Local_Name = "annotation" then
Handler.In_Annotation := Handler.In_Annotation + 1;
end if;
if Local_Name = "include" then
Handler.In_Annotation := Handler.In_Annotation + 1;
for A in 1 .. Att_Length loop
if Get_Name (Atts, A).Local = "schemaLocation" then
declare
R : My_Reader;
Input2 : File_Input;
begin
R.Omit_Schema_Node := True;
Open (Get (Get_Value (Atts, A)).all, Input2);
Parse (R, Input2);
Close (Input2);
end;
end if;
end loop;
end if;
if Handler.In_Annotation /= 0 then
return;
end if;
Put ("<");
Put_Prefix (Get_Prefix (NS));
Put (Get (Local_Name).all);
Handler.Open_Tag_Was_Closed := False;
for A in 1 .. Att_Length loop
Put (" " & Get_Qname (Atts, A) & "='"
& Get (Get_Value (Atts, A)).all & "'");
end loop;
end Start_Element;
-----------------
-- End_Element --
-----------------
overriding procedure End_Element
(Handler : in out My_Reader;
NS : Sax.Utils.XML_NS;
Local_Name : Sax.Symbols.Symbol)
is
begin
if Handler.Omit_Schema_Node and then Local_Name = "schema" then
return;
end if;
if Local_Name = "annotation" or else Local_Name = "include" then
Handler.In_Annotation := Handler.In_Annotation - 1;
return;
end if;
if Handler.In_Annotation /= 0 then
return;
end if;
if not Handler.Open_Tag_Was_Closed then
Put ("/>");
Handler.Open_Tag_Was_Closed := True;
else
Put ("</");
Put_Prefix (Get_Prefix (NS));
Put (Get (Local_Name).all & ">");
end if;
end End_Element;
----------------
-- Characters --
----------------
overriding procedure Characters
(Handler : in out My_Reader;
Ch : Unicode.CES.Byte_Sequence) is
begin
if Handler.In_Annotation /= 0 then
return;
end if;
if not Handler.Open_Tag_Was_Closed then
Put (">");
Handler.Open_Tag_Was_Closed := True;
end if;
Put (Ch);
end Characters;
Input : File_Input;
Reader : My_Reader;
begin
Set_Feature (Reader, Validation_Feature, False);
-- Include xmlns: attributes
Set_Feature (Reader, Namespace_Prefixes_Feature, True);
Put ("<?xml version='1.0'?>");
Open ("schema.xsd", Input);
Parse (Reader, Input);
Close (Input);
end Cleanup_Schema;
|
