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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . T E X T _ I O . E D I T I N G --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-1997 Free Software Foundation, Inc. --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
-- apply solely to the contents of the part following the private keyword. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT 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 distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package Ada.Text_IO.Editing is
type Picture is private;
function Valid
(Pic_String : in String;
Blank_When_Zero : in Boolean := False)
return Boolean;
function To_Picture
(Pic_String : in String;
Blank_When_Zero : in Boolean := False)
return Picture;
function Pic_String (Pic : in Picture) return String;
function Blank_When_Zero (Pic : in Picture) return Boolean;
Max_Picture_Length : constant := 64;
Picture_Error : exception;
Default_Currency : constant String := "$";
Default_Fill : constant Character := ' ';
Default_Separator : constant Character := ',';
Default_Radix_Mark : constant Character := '.';
generic
type Num is delta <> digits <>;
Default_Currency : in String := Editing.Default_Currency;
Default_Fill : in Character := Editing.Default_Fill;
Default_Separator : in Character := Editing.Default_Separator;
Default_Radix_Mark : in Character := Editing.Default_Radix_Mark;
package Decimal_Output is
function Length
(Pic : in Picture;
Currency : in String := Default_Currency)
return Natural;
function Valid
(Item : Num;
Pic : in Picture;
Currency : in String := Default_Currency)
return Boolean;
function Image
(Item : Num;
Pic : in Picture;
Currency : in String := Default_Currency;
Fill : in Character := Default_Fill;
Separator : in Character := Default_Separator;
Radix_Mark : in Character := Default_Radix_Mark)
return String;
procedure Put
(File : in Ada.Text_IO.File_Type;
Item : Num;
Pic : in Picture;
Currency : in String := Default_Currency;
Fill : in Character := Default_Fill;
Separator : in Character := Default_Separator;
Radix_Mark : in Character := Default_Radix_Mark);
procedure Put
(Item : Num;
Pic : in Picture;
Currency : in String := Default_Currency;
Fill : in Character := Default_Fill;
Separator : in Character := Default_Separator;
Radix_Mark : in Character := Default_Radix_Mark);
procedure Put
(To : out String;
Item : Num;
Pic : in Picture;
Currency : in String := Default_Currency;
Fill : in Character := Default_Fill;
Separator : in Character := Default_Separator;
Radix_Mark : in Character := Default_Radix_Mark);
end Decimal_Output;
private
MAX_PICSIZE : constant := 50;
MAX_MONEYSIZE : constant := 10;
Invalid_Position : constant := -1;
subtype Pic_Index is Natural range 0 .. MAX_PICSIZE;
type Picture_Record (Length : Pic_Index := 0) is record
Expanded : String (1 .. Length);
end record;
type Format_Record is record
Picture : Picture_Record;
-- Read only
Blank_When_Zero : Boolean;
-- Read/write
Original_BWZ : Boolean;
-- The following components get written
Star_Fill : Boolean := False;
Radix_Position : Integer := Invalid_Position;
Sign_Position,
Second_Sign : Integer := Invalid_Position;
Start_Float,
End_Float : Integer := Invalid_Position;
Start_Currency,
End_Currency : Integer := Invalid_Position;
Max_Leading_Digits : Integer := 0;
Max_Trailing_Digits : Integer := 0;
Max_Currency_Digits : Integer := 0;
Floater : Character := '!';
-- Initialized to illegal value
end record;
type Picture is record
Contents : Format_Record;
end record;
type Number_Attributes is record
Negative : Boolean := False;
Has_Fraction : Boolean := False;
Start_Of_Int,
End_Of_Int,
Start_Of_Fraction,
End_Of_Fraction : Integer := Invalid_Position; -- invalid value
end record;
function Parse_Number_String (Str : String) return Number_Attributes;
-- Assumed format is 'IMAGE or Fixed_IO.Put format (depends on no
-- trailing blanks...)
procedure Precalculate (Pic : in out Format_Record);
-- Precalculates fields from the user supplied data
function Format_Number
(Pic : Format_Record;
Number : String;
Currency_Symbol : String;
Fill_Character : Character;
Separator_Character : Character;
Radix_Point : Character)
return String;
-- Formats number according to Pic
function Expand (Picture : in String) return String;
end Ada.Text_IO.Editing;
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