208 lines
8.1 KiB
Ada
208 lines
8.1 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 _ 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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-- $Revision: 1.3 $ --
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-- --
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-- Copyright (C) 1992-1997 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 2, 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. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
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-- MA 02111-1307, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
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-- --
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------------------------------------------------------------------------------
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package Ada.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 : in String;
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Blank_When_Zero : in Boolean := False)
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return Boolean;
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function To_Picture
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(Pic_String : in String;
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Blank_When_Zero : in Boolean := False)
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return Picture;
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function Pic_String (Pic : in Picture) return String;
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function Blank_When_Zero (Pic : in 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_String := "$";
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Default_Fill : constant Wide_Character := ' ';
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Default_Separator : constant Wide_Character := ',';
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Default_Radix_Mark : constant Wide_Character := '.';
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generic
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type Num is delta <> digits <>;
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Default_Currency : in Wide_String :=
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Wide_Text_IO.Editing.Default_Currency;
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Default_Fill : in Wide_Character :=
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Wide_Text_IO.Editing.Default_Fill;
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Default_Separator : in Wide_Character :=
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Wide_Text_IO.Editing.Default_Separator;
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Default_Radix_Mark : in Wide_Character :=
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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 : in Picture;
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Currency : in Wide_String := Default_Currency)
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return Natural;
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function Valid
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(Item : Num;
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Pic : in Picture;
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Currency : in Wide_String := Default_Currency)
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return Boolean;
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function Image
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(Item : Num;
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Pic : in Picture;
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Currency : in Wide_String := Default_Currency;
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Fill : in Wide_Character := Default_Fill;
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Separator : in Wide_Character := Default_Separator;
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Radix_Mark : in Wide_Character := Default_Radix_Mark)
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return Wide_String;
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procedure Put
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(File : in File_Type;
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Item : Num;
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Pic : in Picture;
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Currency : in Wide_String := Default_Currency;
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Fill : in Wide_Character := Default_Fill;
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Separator : in Wide_Character := Default_Separator;
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Radix_Mark : in Wide_Character := Default_Radix_Mark);
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procedure Put
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(Item : Num;
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Pic : in Picture;
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Currency : in Wide_String := Default_Currency;
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Fill : in Wide_Character := Default_Fill;
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Separator : in Wide_Character := Default_Separator;
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Radix_Mark : in Wide_Character := Default_Radix_Mark);
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procedure Put
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(To : out Wide_String;
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Item : Num;
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Pic : in Picture;
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Currency : in Wide_String := Default_Currency;
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Fill : in Wide_Character := Default_Fill;
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Separator : in Wide_Character := Default_Separator;
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Radix_Mark : in 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_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_String;
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Fill_Character : Wide_Character;
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Separator_Character : Wide_Character;
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Radix_Point : Wide_Character)
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return Wide_String;
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-- Formats number according to Pic
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function Expand (Picture : in String) return String;
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end Ada.Wide_Text_IO.Editing;
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