199 lines
7.8 KiB
Ada
199 lines
7.8 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . W I D E _ W I D E _ T E X T _ I O . E D I T I N G --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
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-- --
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-- This specification is derived from the Ada Reference Manual for use with --
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-- GNAT. The copyright notice above, and the license provisions that follow --
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-- apply solely to the contents of the part following the private keyword. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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package Ada.Wide_Wide_Text_IO.Editing is
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type Picture is private;
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function Valid
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(Pic_String : String;
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Blank_When_Zero : Boolean := False) return Boolean;
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function To_Picture
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(Pic_String : String;
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Blank_When_Zero : Boolean := False) return Picture;
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function Pic_String (Pic : Picture) return String;
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function Blank_When_Zero (Pic : Picture) return Boolean;
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Max_Picture_Length : constant := 64;
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Picture_Error : exception;
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Default_Currency : constant Wide_Wide_String := "$";
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Default_Fill : constant Wide_Wide_Character := ' ';
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Default_Separator : constant Wide_Wide_Character := ',';
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Default_Radix_Mark : constant Wide_Wide_Character := '.';
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generic
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type Num is delta <> digits <>;
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Default_Currency : Wide_Wide_String :=
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Wide_Wide_Text_IO.Editing.Default_Currency;
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Default_Fill : Wide_Wide_Character :=
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Wide_Wide_Text_IO.Editing.Default_Fill;
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Default_Separator : Wide_Wide_Character :=
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Wide_Wide_Text_IO.Editing.Default_Separator;
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Default_Radix_Mark : Wide_Wide_Character :=
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Wide_Wide_Text_IO.Editing.Default_Radix_Mark;
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package Decimal_Output is
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function Length
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(Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency) return Natural;
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function Valid
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(Item : Num;
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Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency) return Boolean;
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function Image
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(Item : Num;
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Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency;
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Fill : Wide_Wide_Character := Default_Fill;
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Separator : Wide_Wide_Character := Default_Separator;
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Radix_Mark : Wide_Wide_Character := Default_Radix_Mark)
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return Wide_Wide_String;
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procedure Put
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(File : File_Type;
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Item : Num;
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Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency;
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Fill : Wide_Wide_Character := Default_Fill;
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Separator : Wide_Wide_Character := Default_Separator;
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Radix_Mark : Wide_Wide_Character := Default_Radix_Mark);
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procedure Put
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(Item : Num;
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Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency;
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Fill : Wide_Wide_Character := Default_Fill;
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Separator : Wide_Wide_Character := Default_Separator;
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Radix_Mark : Wide_Wide_Character := Default_Radix_Mark);
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procedure Put
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(To : out Wide_Wide_String;
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Item : Num;
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Pic : Picture;
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Currency : Wide_Wide_String := Default_Currency;
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Fill : Wide_Wide_Character := Default_Fill;
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Separator : Wide_Wide_Character := Default_Separator;
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Radix_Mark : Wide_Wide_Character := Default_Radix_Mark);
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end Decimal_Output;
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private
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MAX_PICSIZE : constant := 50;
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MAX_MONEYSIZE : constant := 10;
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Invalid_Position : constant := -1;
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subtype Pic_Index is Natural range 0 .. MAX_PICSIZE;
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type Picture_Record (Length : Pic_Index := 0) is record
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Expanded : String (1 .. Length);
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end record;
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type Format_Record is record
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Picture : Picture_Record;
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-- Read only
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Blank_When_Zero : Boolean;
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-- Read/write
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Original_BWZ : Boolean;
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-- The following components get written
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Star_Fill : Boolean := False;
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Radix_Position : Integer := Invalid_Position;
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Sign_Position,
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Second_Sign : Integer := Invalid_Position;
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Start_Float,
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End_Float : Integer := Invalid_Position;
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Start_Currency,
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End_Currency : Integer := Invalid_Position;
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Max_Leading_Digits : Integer := 0;
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Max_Trailing_Digits : Integer := 0;
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Max_Currency_Digits : Integer := 0;
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Floater : Wide_Wide_Character := '!';
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-- Initialized to illegal value
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end record;
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type Picture is record
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Contents : Format_Record;
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end record;
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type Number_Attributes is record
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Negative : Boolean := False;
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Has_Fraction : Boolean := False;
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Start_Of_Int,
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End_Of_Int,
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Start_Of_Fraction,
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End_Of_Fraction : Integer := Invalid_Position; -- invalid value
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end record;
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function Parse_Number_String (Str : String) return Number_Attributes;
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-- Assumed format is 'IMAGE or Fixed_IO.Put format (depends on no
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-- trailing blanks...)
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procedure Precalculate (Pic : in out Format_Record);
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-- Precalculates fields from the user supplied data
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function Format_Number
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(Pic : Format_Record;
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Number : String;
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Currency_Symbol : Wide_Wide_String;
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Fill_Character : Wide_Wide_Character;
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Separator_Character : Wide_Wide_Character;
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Radix_Point : Wide_Wide_Character) return Wide_Wide_String;
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-- Formats number according to Pic
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function Expand (Picture : String) return String;
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end Ada.Wide_Wide_Text_IO.Editing;
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