/usr/share/ada/adainclude/xmlada/sax-attributes.ads is in libxmlada4.1-dev 4.1-4.
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-- XML/Ada - An XML suite for Ada95 --
-- --
-- Copyright (C) 2001-2010, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public --
-- License as published by the Free Software Foundation; either --
-- version 2 of the License, 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 --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public --
-- License along with this library; if not, write to the --
-- Free Software Foundation, Inc., 59 Temple Place - Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-----------------------------------------------------------------------
-- In addition to the SAX standard, we have added an extra field to
-- Attributes to memorize the default declaration for the attribute
-- (REQUIRED, IMPLIED, FIXED).
-- Likewise, enumerations are represented in a full structure, rather than
-- a simple string.
-- We have also merged the interfaces Attributes and Attributes_Impl, for
-- ease of use.
with Unicode.CES;
with Sax.Models;
package Sax.Attributes is
type Attributes is tagged private;
No_Attributes : constant Attributes;
type Default_Declaration is (Required, Implied, Fixed, Default);
-- See 3.3.2 in XML specifications
type Attribute_Type is
(Cdata, Id, Idref, Idrefs, Entity, Entities, Nmtoken, Nmtokens,
Notation, Enumeration);
-- See 3.3.1 in XML specifications. The last value "Enumeration"
-- corresponds to a model like "(a|b)*",...
--------------------------
-- Attributes interface --
--------------------------
-- In the following functions, an empty string is returned when the
-- index is out of bounds.
-- Indexes are zero-based.
function Get_Index
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Integer;
function Get_Index
(Attr : Attributes;
Local_Name : Unicode.CES.Byte_Sequence) -- no namespace
return Integer;
-- Look up the index of an attribute by Namespace name
-- (-1) is returned if there is no match
function Get_Length (Attr : Attributes) return Natural;
-- Return the number of attributes in the list
function Get_Local_Name (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence;
-- Return an attribute's local name by index
function Get_Prefix (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence;
-- Return the prefix used for the attribute in the XML file
function Get_Qname (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence;
-- Return an attribute's qualified name by index
function Get_Type (Attr : Attributes; Index : Natural)
return Attribute_Type;
-- Return an attribute's type by index
function Get_Type (Attr : Attributes; Qname : Unicode.CES.Byte_Sequence)
return Attribute_Type;
-- Return an attribute's type by XML 1.0 qualified name
function Get_Type
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Attribute_Type;
-- Return an attribute's type by Namespace name, or "CDATA" if the type
-- is unknown.
function Get_URI (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence;
-- Return an attribute's Namespace URI by index
function Get_Value (Attr : Attributes; Index : Natural)
return Unicode.CES.Byte_Sequence;
function Get_Value_As_Boolean
(Attr : Attributes; Index : Natural) return Boolean;
-- Return an attribute's value by index.
-- The second function will test the value's attribute against the standard
-- set of boolean values ("true", "1", "false", "0")
function Get_Value (Attr : Attributes; Qname : Unicode.CES.Byte_Sequence)
return Unicode.CES.Byte_Sequence;
function Get_Value_As_Boolean
(Attr : Attributes; Qname : Unicode.CES.Byte_Sequence) return Boolean;
-- Return an attribute's value by XML 1.0 qualified name
function Get_Value
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Unicode.CES.Byte_Sequence;
function Get_Value_As_Boolean
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence)
return Boolean;
-- Return an attribute's value by Namespace name
function Get_Content
(Attr : Attributes; Index : Natural) return Sax.Models.Content_Model;
-- Return the content model for the attribute.
-- This function doesn't exist in the SAX 2.0 standard.
-- If you need to keep a copy of the returned type, you must Ref it.
procedure Set_Content
(Attr : Attributes;
Index : Natural;
Content : Sax.Models.Content_Model);
-- Set the content model for the attribute.
-- Content is automatically Refed internally, so that caller is still
-- responsible for Unref-ing any reference it owns.
function Get_Default_Declaration
(Attr : Attributes; Index : Natural) return Default_Declaration;
-- Return the specification used for the default value of the attribute.
-- This function is not part of the SAX 2.0 standard.
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);
-- Add an attribute to the end of the list.
-- For the sake of speed, this function doesn't check if the attribute is
-- already in the list, this is the responsability of the application.
-- Content should be null unless Att_Type is Notation or Enumeration.
--
-- The counting for Content is incremented, so you are still responsible
-- for calling Unref after this procedure.
procedure Clear (Attr : in out Attributes);
-- Clear the list of attributes for reuse (or to free the memory allocated
-- for it). You should always call this procedure when you are done with
-- the attribute list.
procedure Remove_Attribute (Attr : in out Attributes; Index : Natural);
-- Remove an attribute from the list, by index.
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);
-- Set an attribute in the list.
-- For the sake of speed, this function doesn't check if the attribute is
-- already in the list, this is the responsability of the application.
-- Content is Refed internally, so the caller still needs to Unref it if it
-- owns a reference to the model
procedure Set_Attributes
(Attr : in out Attributes; From : Attributes'Class);
-- Copy an entire attribute object
procedure Set_Local_Name
(Attr : in out Attributes;
Index : Natural;
Local_Name : Unicode.CES.Byte_Sequence);
-- Set the local name of a specific attribute in the list
procedure Set_Qname
(Attr : in out Attributes;
Index : Natural;
Qname : Unicode.CES.Byte_Sequence);
-- Set the XML 1.0 qualified name of a specific attribute in the list
procedure Set_Type
(Attr : in out Attributes;
Index : Natural;
Att_Type : Attribute_Type);
-- Set the type of a specific attribute in the list
procedure Set_URI
(Attr : in out Attributes;
Index : Natural;
URI : Unicode.CES.Byte_Sequence);
-- Set the Namespace URI of a specific attribute in the list
procedure Set_Value
(Attr : Attributes;
Index : Natural;
Value : Unicode.CES.Byte_Sequence);
-- Set the value of a specific attribute in the list
function Get_Non_Normalized_Value
(Attr : Attributes;
URI : Unicode.CES.Byte_Sequence;
Local_Name : Unicode.CES.Byte_Sequence) return Unicode.CES.Byte_Sequence;
-- Get the value of the attribute before normalization
Out_Of_Bounds : exception;
-- Raised when Index is out of bounds in all the Set_* subprograms.
private
type Attribute;
type Attribute_Access is access Attribute;
type Attribute is record
URI : Unicode.CES.Byte_Sequence_Access;
Local_Name : Unicode.CES.Byte_Sequence_Access;
Value : Unicode.CES.Byte_Sequence_Access;
Non_Normalized_Value : Unicode.CES.Byte_Sequence_Access;
Att_Type : Attribute_Type;
Qname : Unicode.CES.Byte_Sequence_Access;
Default_Decl : Default_Declaration;
Content : Sax.Models.Content_Model := Sax.Models.Unknown_Model;
Next : Attribute_Access;
end record;
type Attributes is tagged record
Length : Natural := 0;
First : Attribute_Access;
Last : Attribute_Access;
end record;
No_Attributes : constant Attributes := (0, null, null);
end Sax.Attributes;
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