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-- String table.
-- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
--
-- GHDL 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, or (at your option) any later
-- version.
--
-- GHDL 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 GHDL; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with System;
with Types; use Types;
package Str_Table is
-- String8 are arrays (or strings) of Nat8 elements. They are used to
-- store analyzed string or bit string literals. The elements are the
-- position of literals, so it is possible to use them for enumerated types
-- containing at most 256 elements (which is the case of standard.bit and
-- std_logic_1164.std_ulogic).
-- It is not possible to free a string8.
-- Create a new string8; this also close the previous string8.
-- Initial length is 0.
function Create_String8 return String8_Id;
-- Append a new element to the being created string8.
procedure Append_String8 (El : Nat8);
procedure Append_String8_Char (El : Character);
pragma Inline (Append_String8_Char);
-- Resize (reduce or expand) the current string8. When expanded, new
-- elements are uninitialized.
procedure Resize_String8 (Len : Nat32);
-- Get/Set N-th element of String8 ID. There is no bound checking.
function Element_String8 (Id : String8_Id; N : Pos32) return Nat8;
procedure Set_Element_String8 (Id : String8_Id; N : Pos32; Val : Nat8);
-- Utility function: get N-th element of ID as a character. Valid only
-- if the elements of ID are Latin-1 codes.
function Char_String8 (Id : String8_Id; N : Pos32) return Character;
pragma Inline (Char_String8);
-- Utility function: get the LEN elements as a string.
function String_String8 (Id : String8_Id; Len : Nat32) return String;
-- Utility function: get the address of string8 ID. Note that as soon
-- as a character is appended (using Append_String8) or a string8 is
-- resized (using Resize_String8), an address previously returned is not
-- valid anymore.
function String8_Address (Id : String8_Id) return System.Address;
-- Free all the memory and reinitialize the package.
procedure Initialize;
end Str_Table;
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