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197 | ------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . W I D E _ T E X T _ I O . E D I T I N G --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2020, 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package Ada.Wide_Text_IO.Editing is
type Picture is private;
function Valid
(Pic_String : String;
Blank_When_Zero : Boolean := False) return Boolean;
function To_Picture
(Pic_String : String;
Blank_When_Zero : Boolean := False) return Picture;
function Pic_String (Pic : Picture) return String;
function Blank_When_Zero (Pic : Picture) return Boolean;
Max_Picture_Length : constant := 64;
Picture_Error : exception;
Default_Currency : constant Wide_String := "$";
Default_Fill : constant Wide_Character := ' ';
Default_Separator : constant Wide_Character := ',';
Default_Radix_Mark : constant Wide_Character := '.';
generic
type Num is delta <> digits <>;
Default_Currency : Wide_String :=
Wide_Text_IO.Editing.Default_Currency;
Default_Fill : Wide_Character :=
Wide_Text_IO.Editing.Default_Fill;
Default_Separator : Wide_Character :=
Wide_Text_IO.Editing.Default_Separator;
Default_Radix_Mark : Wide_Character :=
Wide_Text_IO.Editing.Default_Radix_Mark;
package Decimal_Output is
function Length
(Pic : Picture;
Currency : Wide_String := Default_Currency) return Natural;
function Valid
(Item : Num;
Pic : Picture;
Currency : Wide_String := Default_Currency) return Boolean;
function Image
(Item : Num;
Pic : Picture;
Currency : Wide_String := Default_Currency;
Fill : Wide_Character := Default_Fill;
Separator : Wide_Character := Default_Separator;
Radix_Mark : Wide_Character := Default_Radix_Mark) return Wide_String;
procedure Put
(File : File_Type;
Item : Num;
Pic : Picture;
Currency : Wide_String := Default_Currency;
Fill : Wide_Character := Default_Fill;
Separator : Wide_Character := Default_Separator;
Radix_Mark : Wide_Character := Default_Radix_Mark);
procedure Put
(Item : Num;
Pic : Picture;
Currency : Wide_String := Default_Currency;
Fill : Wide_Character := Default_Fill;
Separator : Wide_Character := Default_Separator;
Radix_Mark : Wide_Character := Default_Radix_Mark);
procedure Put
(To : out Wide_String;
Item : Num;
Pic : Picture;
Currency : Wide_String := Default_Currency;
Fill : Wide_Character := Default_Fill;
Separator : Wide_Character := Default_Separator;
Radix_Mark : Wide_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 : Wide_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 : Wide_String;
Fill_Character : Wide_Character;
Separator_Character : Wide_Character;
Radix_Point : Wide_Character) return Wide_String;
-- Formats number according to Pic
function Expand (Picture : String) return String;
end Ada.Wide_Text_IO.Editing;
|