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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . S T R I N G S . U N B O U N D E D -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2011, 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. -- -- -- ------------------------------------------------------------------------------ with Ada.Strings.Maps; with Ada.Finalization; package Ada.Strings.Unbounded is pragma Preelaborate; type Unbounded_String is private; pragma Preelaborable_Initialization (Unbounded_String); Null_Unbounded_String : constant Unbounded_String; function Length (Source : Unbounded_String) return Natural; type String_Access is access all String; procedure Free (X : in out String_Access); -------------------------------------------------------- -- Conversion, Concatenation, and Selection Functions -- -------------------------------------------------------- function To_Unbounded_String (Source : String) return Unbounded_String; function To_Unbounded_String (Length : Natural) return Unbounded_String; function To_String (Source : Unbounded_String) return String; procedure Set_Unbounded_String (Target : out Unbounded_String; Source : String); pragma Ada_05 (Set_Unbounded_String); procedure Append (Source : in out Unbounded_String; New_Item : Unbounded_String); procedure Append (Source : in out Unbounded_String; New_Item : String); procedure Append (Source : in out Unbounded_String; New_Item : Character); function "&" (Left : Unbounded_String; Right : Unbounded_String) return Unbounded_String; function "&" (Left : Unbounded_String; Right : String) return Unbounded_String; function "&" (Left : String; Right : Unbounded_String) return Unbounded_String; function "&" (Left : Unbounded_String; Right : Character) return Unbounded_String; function "&" (Left : Character; Right : Unbounded_String) return Unbounded_String; function Element (Source : Unbounded_String; Index : Positive) return Character; procedure Replace_Element (Source : in out Unbounded_String; Index : Positive; By : Character); function Slice (Source : Unbounded_String; Low : Positive; High : Natural) return String; function Unbounded_Slice (Source : Unbounded_String; Low : Positive; High : Natural) return Unbounded_String; pragma Ada_05 (Unbounded_Slice); procedure Unbounded_Slice (Source : Unbounded_String; Target : out Unbounded_String; Low : Positive; High : Natural); pragma Ada_05 (Unbounded_Slice); function "=" (Left : Unbounded_String; Right : Unbounded_String) return Boolean; function "=" (Left : Unbounded_String; Right : String) return Boolean; function "=" (Left : String; Right : Unbounded_String) return Boolean; function "<" (Left : Unbounded_String; Right : Unbounded_String) return Boolean; function "<" (Left : Unbounded_String; Right : String) return Boolean; function "<" (Left : String; Right : Unbounded_String) return Boolean; function "<=" (Left : Unbounded_String; Right : Unbounded_String) return Boolean; function "<=" (Left : Unbounded_String; Right : String) return Boolean; function "<=" (Left : String; Right : Unbounded_String) return Boolean; function ">" (Left : Unbounded_String; Right : Unbounded_String) return Boolean; function ">" (Left : Unbounded_String; Right : String) return Boolean; function ">" (Left : String; Right : Unbounded_String) return Boolean; function ">=" (Left : Unbounded_String; Right : Unbounded_String) return Boolean; function ">=" (Left : Unbounded_String; Right : String) return Boolean; function ">=" (Left : String; Right : Unbounded_String) return Boolean; ------------------------ -- Search Subprograms -- ------------------------ function Index (Source : Unbounded_String; Pattern : String; Going : Direction := Forward; Mapping : Maps.Character_Mapping := Maps.Identity) return Natural; function Index (Source : Unbounded_String; Pattern : String; Going : Direction := Forward; Mapping : Maps.Character_Mapping_Function) return Natural; function Index (Source : Unbounded_String; Set : Maps.Character_Set; Test : Membership := Inside; Going : Direction := Forward) return Natural; function Index (Source : Unbounded_String; Pattern : String; From : Positive; Going : Direction := Forward; Mapping : Maps.Character_Mapping := Maps.Identity) return Natural; pragma Ada_05 (Index); function Index (Source : Unbounded_String; Pattern : String; From : Positive; Going : Direction := Forward; Mapping : Maps.Character_Mapping_Function) return Natural; pragma Ada_05 (Index); function Index (Source : Unbounded_String; Set : Maps.Character_Set; From : Positive; Test : Membership := Inside; Going : Direction := Forward) return Natural; pragma Ada_05 (Index); function Index_Non_Blank (Source : Unbounded_String; Going : Direction := Forward) return Natural; function Index_Non_Blank (Source : Unbounded_String; From : Positive; Going : Direction := Forward) return Natural; pragma Ada_05 (Index_Non_Blank); function Count (Source : Unbounded_String; Pattern : String; Mapping : Maps.Character_Mapping := Maps.Identity) return Natural; function Count (Source : Unbounded_String; Pattern : String; Mapping : Maps.Character_Mapping_Function) return Natural; function Count (Source : Unbounded_String; Set : Maps.Character_Set) return Natural; procedure Find_Token (Source : Unbounded_String; Set : Maps.Character_Set; From : Positive; Test : Membership; First : out Positive; Last : out Natural); pragma Ada_2012 (Find_Token); procedure Find_Token (Source : Unbounded_String; Set : Maps.Character_Set; Test : Membership; First : out Positive; Last : out Natural); ------------------------------------ -- String Translation Subprograms -- ------------------------------------ function Translate (Source : Unbounded_String; Mapping : Maps.Character_Mapping) return Unbounded_String; procedure Translate (Source : in out Unbounded_String; Mapping : Maps.Character_Mapping); function Translate (Source : Unbounded_String; Mapping : Maps.Character_Mapping_Function) return Unbounded_String; procedure Translate (Source : in out Unbounded_String; Mapping : Maps.Character_Mapping_Function); --------------------------------------- -- String Transformation Subprograms -- --------------------------------------- function Replace_Slice (Source : Unbounded_String; Low : Positive; High : Natural; By : String) return Unbounded_String; procedure Replace_Slice (Source : in out Unbounded_String; Low : Positive; High : Natural; By : String); function Insert (Source : Unbounded_String; Before : Positive; New_Item : String) return Unbounded_String; procedure Insert (Source : in out Unbounded_String; Before : Positive; New_Item : String); function Overwrite (Source : Unbounded_String; Position : Positive; New_Item : String) return Unbounded_String; procedure Overwrite (Source : in out Unbounded_String; Position : Positive; New_Item : String); function Delete (Source : Unbounded_String; From : Positive; Through : Natural) return Unbounded_String; procedure Delete (Source : in out Unbounded_String; From : Positive; Through : Natural); function Trim (Source : Unbounded_String; Side : Trim_End) return Unbounded_String; procedure Trim (Source : in out Unbounded_String; Side : Trim_End); function Trim (Source : Unbounded_String; Left : Maps.Character_Set; Right : Maps.Character_Set) return Unbounded_String; procedure Trim (Source : in out Unbounded_String; Left : Maps.Character_Set; Right : Maps.Character_Set); function Head (Source : Unbounded_String; Count : Natural; Pad : Character := Space) return Unbounded_String; procedure Head (Source : in out Unbounded_String; Count : Natural; Pad : Character := Space); function Tail (Source : Unbounded_String; Count : Natural; Pad : Character := Space) return Unbounded_String; procedure Tail (Source : in out Unbounded_String; Count : Natural; Pad : Character := Space); function "*" (Left : Natural; Right : Character) return Unbounded_String; function "*" (Left : Natural; Right : String) return Unbounded_String; function "*" (Left : Natural; Right : Unbounded_String) return Unbounded_String; private pragma Inline (Length); package AF renames Ada.Finalization; Null_String : aliased String := ""; function To_Unbounded (S : String) return Unbounded_String renames To_Unbounded_String; type Unbounded_String is new AF.Controlled with record Reference : String_Access := Null_String'Access; Last : Natural := 0; end record; -- The Unbounded_String is using a buffered implementation to increase -- speed of the Append/Delete/Insert procedures. The Reference string -- pointer above contains the current string value and extra room at the -- end to be used by the next Append routine. Last is the index of the -- string ending character. So the current string value is really -- Reference (1 .. Last). pragma Stream_Convert (Unbounded_String, To_Unbounded, To_String); -- Provide stream routines without dragging in Ada.Streams pragma Finalize_Storage_Only (Unbounded_String); -- Finalization is required only for freeing storage procedure Initialize (Object : in out Unbounded_String); procedure Adjust (Object : in out Unbounded_String); procedure Finalize (Object : in out Unbounded_String); procedure Realloc_For_Chunk (Source : in out Unbounded_String; Chunk_Size : Natural); pragma Inline (Realloc_For_Chunk); -- Adjust the size allocated for the string. Add at least Chunk_Size so it -- is safe to add a string of this size at the end of the current content. -- The real size allocated for the string is Chunk_Size + x of the current -- string size. This buffered handling makes the Append unbounded string -- routines very fast. This spec is in the private part so that it can be -- accessed from children (e.g. from Unbounded.Text_IO). Null_Unbounded_String : constant Unbounded_String := (AF.Controlled with Reference => Null_String'Access, Last => 0); end Ada.Strings.Unbounded;
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