Ada 程式設計/庫/Ada.Strings.Maps

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此語言功能從 Ada 95 開始可用。

Ada.Strings.Maps 是 預定義語言環境 自 Ada 95 以來的一部分。

規範

--                     Standard Ada library specification
--   Copyright (c) 2003-2018 Maxim Reznik <reznikmm@gmail.com>
--   Copyright (c) 2004-2016 AXE Consultants
--   Copyright (c) 2004, 2005, 2006 Ada-Europe
--   Copyright (c) 2000 The MITRE Corporation, Inc.
--   Copyright (c) 1992, 1993, 1994, 1995 Intermetrics, Inc.
--   SPDX-License-Identifier: BSD-3-Clause and LicenseRef-AdaReferenceManual
-- -------------------------------------------------------------------------

package Ada.Strings.Maps is
   pragma Pure (Maps);

   --  Representation for a set of character values:
   type Character_Set is private;
   pragma Preelaborable_Initialization (Character_Set);

   Null_Set : constant Character_Set;

   type Character_Range is
      record
         Low  : Character;
         High : Character;
      end record;
   --  Represents Character range Low..High

   type Character_Ranges is
     array (Positive range <>) of Character_Range;

   function To_Set
     (Ranges : in Character_Ranges) return Character_Set;

   function To_Set    (Span   : in Character_Range) return Character_Set;

   function To_Ranges
     (Set    : in Character_Set) return Character_Ranges;

   function "="   (Left, Right : in Character_Set) return Boolean;

   function "not" (Right : in Character_Set)       return Character_Set;
   function "and" (Left, Right : in Character_Set) return Character_Set;
   function "or"  (Left, Right : in Character_Set) return Character_Set;
   function "xor" (Left, Right : in Character_Set) return Character_Set;
   function "-"   (Left, Right : in Character_Set) return Character_Set;

   function Is_In (Element : in Character;
                   Set     : in Character_Set)
                  return Boolean;

   function Is_Subset (Elements : in Character_Set;
                       Set      : in Character_Set)
                      return Boolean;

   function "<=" (Left  : in Character_Set;
                  Right : in Character_Set)
                 return Boolean renames Is_Subset;

   --  Alternative representation for a set of character values:
   subtype Character_Sequence is String;

   function To_Set
     (Sequence  : in Character_Sequence)return Character_Set;

   function To_Set (Singleton : in Character)     return Character_Set;

   function To_Sequence
     (Set  : in Character_Set) return Character_Sequence;

   --  Representation for a character to character mapping:
   type Character_Mapping is private;
   pragma Preelaborable_Initialization (Character_Mapping);

   function Value (Map     : in Character_Mapping;
                   Element : in Character)
                  return Character;

   Identity : constant Character_Mapping;

   function To_Mapping (From, To : in Character_Sequence)
                       return Character_Mapping;

   function To_Domain (Map : in Character_Mapping)
                      return Character_Sequence;
   function To_Range  (Map : in Character_Mapping)
                      return Character_Sequence;

   type Character_Mapping_Function is
     access function (From : in Character) return Character;

private

   pragma Import (Ada, Character_Set);
   pragma Import (Ada, Null_Set);
   pragma Import (Ada, Character_Mapping);
   pragma Import (Ada, Identity);

end Ada.Strings.Maps;

另請參閱

華夏公益教科書

• Ada 程式設計/庫/Ada
• Ada 程式設計/字串

外部示例

• 在以下位置搜尋 Ada.Strings.Maps 的示例：Rosetta 程式碼，GitHub (片段)，任何 Alire 包 或 本華夏公益教科書。
• 在以下位置搜尋與 Ada.Strings.Maps 相關的帖子：Stack Overflow，comp.lang.ada 或 任何與 Ada 相關的頁面。

Ada 參考手冊

Ada 95

• A.4.2: 包 Strings.Maps ^[註釋]

Ada 2005

• A.4.2: 包 Strings.Maps ^[註釋]

Ada 2012

• A.4.2: 包 Strings.Maps ^[註釋]

開源實現

FSF GNAT

• 規範：a-strmap.ads
• 主體：a-strmap.adb

drake

• 規範：strings/a-strmap.ads
• 主體：strings/a-strmap.adb