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------------------------------------------------------------------------------
-- --
-- GNAT2XML COMPONENTS --
-- --
-- G E N E R I C _ F O R M A T T E D _ O U T P U T --
-- --
-- B o d y --
-- --
-- Copyright (C) 2012-2016, AdaCore --
-- --
-- Gnat2xml 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 2, or (at your option) any later --
-- version. Gnat2xml is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY 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 distributed with GNAT; see file COPYING. If --
-- not, write to the Free Software Foundation, 59 Temple Place Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- The gnat2xml tool was derived from the Avatox sources. --
------------------------------------------------------------------------------
pragma Ada_2012;
with Ada.Finalization; use Ada.Finalization;
with ASIS_UL.Utilities;
with ASIS_UL.String_Utilities; use ASIS_UL.String_Utilities;
package body ASIS_UL.Generic_Formatted_Output is
Column : Natural := 1;
procedure Raw_Put_Char (C : Char_Type);
-- Put the character and adjust Column
procedure Put (S : Str_Type);
-- Put_Char all the characters
type Finalization is new Limited_Controlled with null record;
procedure Finalize (X : in out Finalization);
The_Finalization : Finalization;
pragma Unreferenced (The_Finalization);
-- Declare a singleton object to check that the indentation isn't messed up
-- -- we should end up at zero indentation.
----------------
-- Cur_Column --
----------------
function Cur_Column return Positive is
begin
return Column;
end Cur_Column;
--------------
-- Finalize --
--------------
procedure Finalize (X : in out Finalization) is
pragma Unreferenced (X);
begin
if ASIS_UL.Utilities.Main_Done then
if Indentation /= 0 then
raise Program_Error with "Indentation should be zero at end.";
end if;
end if;
end Finalize;
------------
-- Indent --
------------
procedure Indent
(Indentation_Amount : Natural := Default_Indentation_Amount)
is
begin
Indentation := Indentation + Indentation_Amount;
end Indent;
-------------
-- Outdent --
-------------
procedure Outdent
(Indentation_Amount : Natural := Default_Indentation_Amount)
is
begin
Indentation := Indentation - Indentation_Amount;
end Outdent;
---------
-- Put --
---------
procedure Put
(T : Template;
X1, X2, X3, X4, X5, X6 : Str_Type := (1 .. 0 => <>))
is
J : Positive := T'First;
Used : array (1 .. 6) of Boolean := (others => False);
begin
if not Output_Enabled then
return;
end if;
while J <= T'Last loop
if T (J) = '\' then
J := J + 1;
case T (J) is
when 'n' =>
Put_Char (Char_Type'Val (W_Char'Pos (NL)));
when 't' =>
Put_Char (Char_Type'Val (W_Char'Pos (W_HT)));
when '\' =>
Put_Char (Char_Type'Val (W_Char'Pos ('\')));
when 'i' =>
Indent;
when 'o' =>
Outdent;
when '1' =>
Used (1) := True;
Put (X1);
when '2' =>
Used (2) := True;
Put (X2);
when '3' =>
Used (3) := True;
Put (X3);
when '4' =>
Used (4) := True;
Put (X4);
when '5' =>
Used (5) := True;
Put (X5);
when '6' =>
Used (6) := True;
Put (X6);
when others =>
raise Program_Error;
end case;
else
Put_Char (Char_Type'Val (Character'Pos (T (J))));
end if;
J := J + 1;
end loop;
if not Used (1) then
pragma Assert (X1'Length = 0);
end if;
if not Used (2) then
pragma Assert (X2'Length = 0);
end if;
if not Used (3) then
pragma Assert (X3'Length = 0);
end if;
if not Used (4) then
pragma Assert (X4'Length = 0);
end if;
if not Used (5) then
pragma Assert (X5'Length = 0);
end if;
if not Used (6) then
pragma Assert (X6'Length = 0);
end if;
end Put;
procedure Put (S : Str_Type) is
begin
for J in S'Range loop
Put_Char (S (J));
end loop;
end Put;
--------------
-- Put_Char --
--------------
procedure Put_Char (C : Char_Type) is
begin
pragma Assert (Output_Enabled); -- too slow to check on every char
if False and then not Output_Enabled then
return;
end if;
if Column = 1 and then C /= Char_Type'Val (W_Char'Pos (NL)) then
for J in 1 .. Indentation mod 60 loop
-- The "mod 60" is so we don't indent by huge amounts
Raw_Put_Char (Char_Type'Val (W_Char'Pos (' ')));
end loop;
end if;
Raw_Put_Char (C);
end Put_Char;
------------------
-- Raw_Put_Char --
------------------
procedure Raw_Put_Char (C : Char_Type) is
begin
Basic_Put_Char (C);
if C = Char_Type'Val (W_Char'Pos (NL)) then
Column := 1;
else
Column := Column + 1;
end if;
end Raw_Put_Char;
-------------------
-- Tab_To_Column --
-------------------
procedure Tab_To_Column (Column : Positive) is
begin
while Cur_Column < Column loop
Put_Char (Char_Type'Val (W_Char'Pos (' ')));
end loop;
end Tab_To_Column;
end ASIS_UL.Generic_Formatted_Output;
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