/usr/share/ada/adainclude/xmlada/sax-attributes.adb is in libxmlada5-dev 4.4.2014-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2001-2014, 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 along --
-- with this program; see the file COPYING3. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
with Unicode.CES; use Unicode.CES;
with Unchecked_Deallocation;
with Sax.Models; use Sax.Models;
package body Sax.Attributes is
procedure Free (Attr : in out Attribute);
-- Free the memory allocated for a single attribute.
-- This doesn't free the memory allocated for Attr itself, nor any other
-- node in the list.
procedure Free_Node is new Unchecked_Deallocation
(Attribute, Attribute_Access);
function Get
(Attr : Attributes'Class; Index : Natural) return Attribute_Access;
-- Return the Index-th attribute in the list, or raise Out_Of_Bounds if
-- Index is too big
procedure Get (Attr : Attributes'Class;
Qname : Byte_Sequence;
Index : out Integer;
Att : out Attribute_Access);
-- Return the first attribute whose Qname matches
procedure Get (Attr : Attributes'Class;
URI : Byte_Sequence;
Local_Name : Byte_Sequence;
Index : out Integer;
Att : out Attribute_Access);
-- Return the first attribute whose name matches
----------
-- Free --
----------
procedure Free (Attr : in out Attribute) is
begin
Free (Attr.URI);
Free (Attr.Local_Name);
if Attr.Non_Normalized_Value /= Attr.Value then
Free (Attr.Non_Normalized_Value);
end if;
Attr.Non_Normalized_Value := null;
Free (Attr.Value);
Free (Attr.Qname);
Unref (Attr.Content);
-- Do not free Attr.Content, since this is a pointer to an external
-- structure, shared by all attributes with the same model
end Free;
---------
-- Get --
---------
function Get (Attr : Attributes'Class; Index : Natural)
return Attribute_Access
is
Tmp : Attribute_Access := Attr.First;
begin
if Index >= Attr.Length then
raise Out_Of_Bounds;
end if;
for J in 0 .. Index - 1 loop
Tmp := Tmp.Next;
end loop;
pragma Assert (Tmp /= null, "Get returned a null attribute");
return Tmp;
end Get;
---------
-- Get --
---------
procedure Get (Attr : Attributes'Class;
Qname : Byte_Sequence;
Index : out Integer;
Att : out Attribute_Access) is
begin
Index := 0;
Att := Attr.First;
while Att /= null loop
if Att.Qname.all = Qname then
return;
end if;
Index := Index + 1;
Att := Att.Next;
end loop;
Index := -1;
end Get;
---------
-- Get --
---------
procedure Get (Attr : Attributes'Class;
URI : Byte_Sequence;
Local_Name : Byte_Sequence;
Index : out Integer;
Att : out Attribute_Access) is
begin
Index := 0;
Att := Attr.First;
while Att /= null loop
if Att.URI.all = URI
and then Att.Local_Name.all = Local_Name
then
return;
end if;
Att := Att.Next;
Index := Index + 1;
end loop;
Index := -1;
end Get;
-------------------
-- Add_Attribute --
-------------------
procedure Add_Attribute
(Attr : in out Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence;
Qname : Unicode.CES.Byte_Sequence;
Att_Type : Attribute_Type;
Content : Sax.Models.Content_Model;
Value : Unicode.CES.Byte_Sequence;
Default_Decl : Default_Declaration := Default) is
begin
if Attr.Last = null then
Attr.First := new Attribute;
Attr.Last := Attr.First;
else
Attr.Last.Next := new Attribute;
Attr.Last := Attr.Last.Next;
end if;
Attr.Last.URI := new Byte_Sequence'(URI);
Attr.Last.Local_Name := new Byte_Sequence'(Local_Name);
Attr.Last.Att_Type := Att_Type;
Attr.Last.Value := new Byte_Sequence'(Value);
Attr.Last.Non_Normalized_Value := Attr.Last.Value;
Attr.Last.Qname := new Byte_Sequence'(Qname);
Attr.Last.Default_Decl := Default_Decl;
Attr.Last.Content := Content;
Ref (Attr.Last.Content);
Attr.Length := Attr.Length + 1;
end Add_Attribute;
-----------
-- Clear --
-----------
procedure Clear (Attr : in out Attributes) is
Tmp : Attribute_Access;
begin
while Attr.First /= null loop
Tmp := Attr.First.Next;
Free (Attr.First.all);
Free_Node (Attr.First);
Attr.First := Tmp;
end loop;
Attr.Last := null;
Attr.Length := 0;
end Clear;
----------------------
-- Remove_Attribute --
----------------------
procedure Remove_Attribute
(Attr : in out Attributes;
Index : Natural)
is
Tmp : Attribute_Access;
Tmp2 : Attribute_Access;
begin
if Index = 0 then
Tmp := Attr.First;
if Attr.Last = Attr.First then
Attr.Last := null;
end if;
Attr.First := Attr.First.Next;
Free (Tmp.all);
Free_Node (Tmp);
else
Tmp := Get (Attr, Index - 1);
if Attr.Last = Tmp then
Attr.Last := Attr.First;
while Attr.Last.Next /= null loop
Attr.Last := Attr.Last.Next;
end loop;
end if;
Tmp2 := Tmp.Next;
Tmp.Next := Tmp2.Next;
Free (Tmp2.all);
Free_Node (Tmp2);
end if;
Attr.Length := Attr.Length - 1;
end Remove_Attribute;
-------------------
-- Set_Attribute --
-------------------
procedure Set_Attribute
(Attr : in out Attributes;
Index : Natural;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence;
Qname : Unicode.CES.Byte_Sequence;
Att_Type : Attribute_Type;
Content : Sax.Models.Content_Model;
Value : Unicode.CES.Byte_Sequence;
Default_Decl : Default_Declaration := Default)
is
Att : constant Attribute_Access := Get (Attr, Index);
begin
Free (Att.all);
Att.URI := new Byte_Sequence'(URI);
Att.Local_Name := new Byte_Sequence'(Local_Name);
Att.Att_Type := Att_Type;
Att.Value := new Byte_Sequence'(Value);
Att.Non_Normalized_Value := Att.Value;
Att.Qname := new Byte_Sequence'(Qname);
Att.Default_Decl := Default_Decl;
Att.Content := Content;
Ref (Att.Content);
end Set_Attribute;
--------------------
-- Set_Attributes --
--------------------
procedure Set_Attributes
(Attr : in out Attributes;
From : Attributes'Class)
is
Length : constant Natural := Get_Length (From);
Att : Attribute_Access;
begin
for J in 0 .. Length - 1 loop
Att := Get (From, J);
Add_Attribute (Attr,
URI => Att.URI.all,
Local_Name => Att.Local_Name.all,
Qname => Att.Qname.all,
Att_Type => Att.Att_Type,
Content => Att.Content,
Value => Att.Value.all);
end loop;
end Set_Attributes;
--------------------
-- Set_Local_Name --
--------------------
procedure Set_Local_Name
(Attr : in out Attributes;
Index : Natural;
Local_Name : Unicode.CES.Byte_Sequence)
is
Tmp : constant Attribute_Access := Get (Attr, Index);
begin
Free (Tmp.Local_Name);
Tmp.Local_Name := new Byte_Sequence'(Local_Name);
end Set_Local_Name;
---------------
-- Set_Qname --
---------------
procedure Set_Qname
(Attr : in out Attributes;
Index : Natural;
Qname : Unicode.CES.Byte_Sequence)
is
Tmp : constant Attribute_Access := Get (Attr, Index);
begin
Free (Tmp.Qname);
Tmp.Qname := new Byte_Sequence'(Qname);
end Set_Qname;
--------------
-- Set_Type --
--------------
procedure Set_Type
(Attr : in out Attributes;
Index : Natural;
Att_Type : Attribute_Type) is
begin
Get (Attr, Index).Att_Type := Att_Type;
end Set_Type;
-------------
-- Set_URI --
-------------
procedure Set_URI
(Attr : in out Attributes;
Index : Natural;
URI : Unicode.CES.Byte_Sequence)
is
Tmp : constant Attribute_Access := Get (Attr, Index);
begin
Free (Tmp.URI);
Tmp.URI := new Byte_Sequence'(URI);
end Set_URI;
---------------
-- Set_Value --
---------------
procedure Set_Value
(Attr : Attributes;
Index : Natural;
Value : Unicode.CES.Byte_Sequence)
is
Tmp : constant Attribute_Access := Get (Attr, Index);
begin
pragma Assert (Tmp /= null, "Unexpected null attribute");
if Tmp.Non_Normalized_Value /= Tmp.Value then
Free (Tmp.Value);
end if;
Tmp.Value := new Byte_Sequence'(Value);
end Set_Value;
---------------
-- Get_Index --
---------------
function Get_Index
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Integer
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, URI, Local_Name, J, Tmp);
return J;
end Get_Index;
---------------
-- Get_Index --
---------------
function Get_Index
(Attr : Attributes;
Local_Name : Unicode.CES.Byte_Sequence) -- no namespace
return Integer is
begin
return Get_Index (Attr, URI => "", Local_Name => Local_Name);
end Get_Index;
----------------
-- Get_Length --
----------------
function Get_Length (Attr : Attributes) return Natural is
begin
return Attr.Length;
end Get_Length;
--------------------
-- Get_Local_Name --
--------------------
function Get_Local_Name (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence is
begin
return Get (Attr, Index).Local_Name.all;
end Get_Local_Name;
---------------
-- Get_Qname --
---------------
function Get_Qname (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence is
begin
return Get (Attr, Index).Qname.all;
end Get_Qname;
----------------
-- Get_Prefix --
----------------
function Get_Prefix (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence
is
QName : constant Unicode.CES.Byte_Sequence_Access :=
Get (Attr, Index).Qname;
Pos : constant Natural := Ada.Strings.Fixed.Index
(String (QName.all), ":");
begin
if Pos < QName'First then
return "";
else
return QName (QName'First .. Pos - 1);
end if;
end Get_Prefix;
--------------
-- Get_Type --
--------------
function Get_Type (Attr : Attributes; Index : Natural)
return Attribute_Type is
begin
return Get (Attr, Index).Att_Type;
end Get_Type;
--------------
-- Get_Type --
--------------
function Get_Type
(Attr : Attributes;
Qname : Unicode.CES.Byte_Sequence)
return Attribute_Type
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, Qname, J, Tmp);
if Tmp = null then
return Cdata; -- 3.3.3: If not defined, treated as CDATA
end if;
return Tmp.Att_Type;
end Get_Type;
--------------
-- Get_Type --
--------------
function Get_Type
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Attribute_Type
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, URI, Local_Name, J, Tmp);
return Tmp.Att_Type;
end Get_Type;
-------------
-- Get_URI --
-------------
function Get_URI (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence is
begin
return Get (Attr, Index).URI.all;
end Get_URI;
---------------
-- Get_Value --
---------------
function Get_Value (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence is
begin
return Get (Attr, Index).Value.all;
end Get_Value;
--------------------------
-- Get_Value_As_Boolean --
--------------------------
function Get_Value_As_Boolean
(Attr : Attributes; Index : Natural) return Boolean
is
Val : constant Byte_Sequence_Access := Get (Attr, Index).Value;
begin
return Val.all = "true" or else Val.all = "1";
end Get_Value_As_Boolean;
---------------
-- Get_Value --
---------------
function Get_Value
(Attr : Attributes;
Qname : Unicode.CES.Byte_Sequence)
return Unicode.CES.Byte_Sequence
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, Qname, J, Tmp);
return Tmp.Value.all;
end Get_Value;
------------------------------
-- Get_Non_Normalized_Value --
------------------------------
function Get_Non_Normalized_Value
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence) return Unicode.CES.Byte_Sequence
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, URI, Local_Name, J, Tmp);
if Tmp /= null then
return Tmp.Non_Normalized_Value.all;
else
return "";
end if;
end Get_Non_Normalized_Value;
--------------------------
-- Get_Value_As_Boolean --
--------------------------
function Get_Value_As_Boolean
(Attr : Attributes;
Qname : Unicode.CES.Byte_Sequence)
return Boolean
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, Qname, J, Tmp);
return Tmp.Value.all = "true" or else Tmp.Value.all = "1";
end Get_Value_As_Boolean;
---------------
-- Get_Value --
---------------
function Get_Value
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Unicode.CES.Byte_Sequence
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, URI, Local_Name, J, Tmp);
if Tmp /= null then
return Tmp.Value.all;
else
return "";
end if;
end Get_Value;
--------------------------
-- Get_Value_As_Boolean --
--------------------------
function Get_Value_As_Boolean
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Boolean
is
J : Integer;
Tmp : Attribute_Access;
begin
Get (Attr, URI, Local_Name, J, Tmp);
return Tmp.Value.all = "true" or else Tmp.Value.all = "1";
end Get_Value_As_Boolean;
-----------------------------
-- Get_Default_Declaration --
-----------------------------
function Get_Default_Declaration
(Attr : Attributes; Index : Natural) return Default_Declaration is
begin
return Get (Attr, Index).Default_Decl;
end Get_Default_Declaration;
-----------------
-- Set_Content --
-----------------
procedure Set_Content
(Attr : Attributes;
Index : Natural;
Content : Sax.Models.Content_Model) is
begin
Unref (Get (Attr, Index).Content);
Get (Attr, Index).Content := Content;
Ref (Content);
end Set_Content;
-----------------
-- Get_Content --
-----------------
function Get_Content (Attr : Attributes; Index : Natural)
return Sax.Models.Content_Model is
begin
return Get (Attr, Index).Content;
end Get_Content;
end Sax.Attributes;
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