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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--               A D A . S T R I N G S . W I D E _ F I X E D                --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
--                                                                          --
-- 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.Wide_Wide_Maps; use Ada.Strings.Wide_Wide_Maps;
with Ada.Strings.Wide_Wide_Search;
 
package body Ada.Strings.Wide_Wide_Fixed is
 
   ------------------------
   -- Search Subprograms --
   ------------------------
 
   function Index
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      Going   : Direction := Forward;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
                  Wide_Wide_Maps.Identity)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      Going   : Direction := Forward;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index
     (Source : Wide_Wide_String;
      Set    : Wide_Wide_Maps.Wide_Wide_Character_Set;
      Test   : Membership := Inside;
      Going  : Direction  := Forward) return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      From    : Positive;
      Going   : Direction := Forward;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
                  Wide_Wide_Maps.Identity)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      From    : Positive;
      Going   : Direction := Forward;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index
     (Source  : Wide_Wide_String;
      Set     : Wide_Wide_Maps.Wide_Wide_Character_Set;
      From    : Positive;
      Test    : Membership := Inside;
      Going   : Direction := Forward) return Natural
   renames Ada.Strings.Wide_Wide_Search.Index;
 
   function Index_Non_Blank
     (Source : Wide_Wide_String;
      Going  : Direction := Forward) return Natural
      renames Ada.Strings.Wide_Wide_Search.Index_Non_Blank;
 
   function Index_Non_Blank
     (Source : Wide_Wide_String;
      From   : Positive;
      Going  : Direction := Forward) return Natural
   renames Ada.Strings.Wide_Wide_Search.Index_Non_Blank;
 
   function Count
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
                  Wide_Wide_Maps.Identity)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Count;
 
   function Count
     (Source  : Wide_Wide_String;
      Pattern : Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
      return Natural
   renames Ada.Strings.Wide_Wide_Search.Count;
 
   function Count
     (Source : Wide_Wide_String;
      Set    : Wide_Wide_Maps.Wide_Wide_Character_Set) return Natural
   renames Ada.Strings.Wide_Wide_Search.Count;
 
   procedure Find_Token
     (Source : Wide_Wide_String;
      Set    : Wide_Wide_Maps.Wide_Wide_Character_Set;
      Test   : Membership;
      First  : out Positive;
      Last   : out Natural)
   renames Ada.Strings.Wide_Wide_Search.Find_Token;
 
   ---------
   -- "*" --
   ---------
 
   function "*"
     (Left  : Natural;
      Right : Wide_Wide_Character) return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Left);
 
   begin
      for J in Result'Range loop
         Result (J) := Right;
      end loop;
 
      return Result;
   end "*";
 
   function "*"
     (Left  : Natural;
      Right : Wide_Wide_String) return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Left * Right'Length);
      Ptr    : Integer := 1;
 
   begin
      for J in 1 .. Left loop
         Result (Ptr .. Ptr + Right'Length - 1) := Right;
         Ptr := Ptr + Right'Length;
      end loop;
 
      return Result;
   end "*";
 
   ------------
   -- Delete --
   ------------
 
   function Delete
     (Source  : Wide_Wide_String;
      From    : Positive;
      Through : Natural) return Wide_Wide_String
   is
   begin
      if From not in Source'Range
        or else Through > Source'Last
      then
         raise Index_Error;
 
      elsif From > Through then
         return Source;
 
      else
         declare
            Len    : constant Integer := Source'Length - (Through - From + 1);
            Result : constant Wide_Wide_String
                       (Source'First .. Source'First + Len - 1) :=
                          Source (Source'First .. From - 1) &
                          Source (Through + 1 .. Source'Last);
         begin
            return Result;
         end;
      end if;
   end Delete;
 
   procedure Delete
     (Source  : in out Wide_Wide_String;
      From    : Positive;
      Through : Natural;
      Justify : Alignment := Left;
      Pad     : Wide_Wide_Character := Wide_Wide_Space)
   is
   begin
      Move (Source  => Delete (Source, From, Through),
            Target  => Source,
            Justify => Justify,
            Pad     => Pad);
   end Delete;
 
   ----------
   -- Head --
   ----------
 
   function Head
     (Source : Wide_Wide_String;
      Count  : Natural;
      Pad    : Wide_Wide_Character := Wide_Wide_Space) return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Count);
 
   begin
      if Count <= Source'Length then
         Result := Source (Source'First .. Source'First + Count - 1);
 
      else
         Result (1 .. Source'Length) := Source;
 
         for J in Source'Length + 1 .. Count loop
            Result (J) := Pad;
         end loop;
      end if;
 
      return Result;
   end Head;
 
   procedure Head
     (Source  : in out Wide_Wide_String;
      Count   : Natural;
      Justify : Alignment := Left;
      Pad     : Wide_Wide_Character := Ada.Strings.Wide_Wide_Space)
   is
   begin
      Move (Source  => Head (Source, Count, Pad),
            Target  => Source,
            Drop    => Error,
            Justify => Justify,
            Pad     => Pad);
   end Head;
 
   ------------
   -- Insert --
   ------------
 
   function Insert
     (Source   : Wide_Wide_String;
      Before   : Positive;
      New_Item : Wide_Wide_String) return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Source'Length + New_Item'Length);
 
   begin
      if Before < Source'First or else Before > Source'Last + 1 then
         raise Index_Error;
      end if;
 
      Result := Source (Source'First .. Before - 1) & New_Item &
                Source (Before .. Source'Last);
      return Result;
   end Insert;
 
   procedure Insert
     (Source   : in out Wide_Wide_String;
      Before   : Positive;
      New_Item : Wide_Wide_String;
      Drop     : Truncation := Error)
   is
   begin
      Move (Source => Insert (Source, Before, New_Item),
            Target => Source,
            Drop   => Drop);
   end Insert;
 
   ----------
   -- Move --
   ----------
 
   procedure Move
     (Source  : Wide_Wide_String;
      Target  : out Wide_Wide_String;
      Drop    : Truncation := Error;
      Justify : Alignment  := Left;
      Pad     : Wide_Wide_Character  := Wide_Wide_Space)
   is
      Sfirst  : constant Integer := Source'First;
      Slast   : constant Integer := Source'Last;
      Slength : constant Integer := Source'Length;
 
      Tfirst  : constant Integer := Target'First;
      Tlast   : constant Integer := Target'Last;
      Tlength : constant Integer := Target'Length;
 
      function Is_Padding (Item : Wide_Wide_String) return Boolean;
      --  Determinbe if all characters in Item are pad characters
 
      function Is_Padding (Item : Wide_Wide_String) return Boolean is
      begin
         for J in Item'Range loop
            if Item (J) /= Pad then
               return False;
            end if;
         end loop;
 
         return True;
      end Is_Padding;
 
   --  Start of processing for Move
 
   begin
      if Slength = Tlength then
         Target := Source;
 
      elsif Slength > Tlength then
 
         case Drop is
            when Left =>
               Target := Source (Slast - Tlength + 1 .. Slast);
 
            when Right =>
               Target := Source (Sfirst .. Sfirst + Tlength - 1);
 
            when Error =>
               case Justify is
                  when Left =>
                     if Is_Padding (Source (Sfirst + Tlength .. Slast)) then
                        Target :=
                          Source (Sfirst .. Sfirst + Target'Length - 1);
                     else
                        raise Length_Error;
                     end if;
 
                  when Right =>
                     if Is_Padding (Source (Sfirst .. Slast - Tlength)) then
                        Target := Source (Slast - Tlength + 1 .. Slast);
                     else
                        raise Length_Error;
                     end if;
 
                  when Center =>
                     raise Length_Error;
               end case;
 
         end case;
 
      --  Source'Length < Target'Length
 
      else
         case Justify is
            when Left =>
               Target (Tfirst .. Tfirst + Slength - 1) := Source;
 
               for J in Tfirst + Slength .. Tlast loop
                  Target (J) := Pad;
               end loop;
 
            when Right =>
               for J in Tfirst .. Tlast - Slength loop
                  Target (J) := Pad;
               end loop;
 
               Target (Tlast - Slength + 1 .. Tlast) := Source;
 
            when Center =>
               declare
                  Front_Pad   : constant Integer := (Tlength - Slength) / 2;
                  Tfirst_Fpad : constant Integer := Tfirst + Front_Pad;
 
               begin
                  for J in Tfirst .. Tfirst_Fpad - 1 loop
                     Target (J) := Pad;
                  end loop;
 
                  Target (Tfirst_Fpad .. Tfirst_Fpad + Slength - 1) := Source;
 
                  for J in Tfirst_Fpad + Slength .. Tlast loop
                     Target (J) := Pad;
                  end loop;
               end;
         end case;
      end if;
   end Move;
 
   ---------------
   -- Overwrite --
   ---------------
 
   function Overwrite
     (Source   : Wide_Wide_String;
      Position : Positive;
      New_Item : Wide_Wide_String) return Wide_Wide_String
   is
   begin
      if Position not in Source'First .. Source'Last + 1 then
         raise Index_Error;
      else
         declare
            Result_Length : constant Natural :=
                              Natural'Max
                                (Source'Length,
                                 Position - Source'First + New_Item'Length);
 
            Result : Wide_Wide_String (1 .. Result_Length);
 
         begin
            Result := Source (Source'First .. Position - 1) & New_Item &
                        Source (Position + New_Item'Length .. Source'Last);
            return Result;
         end;
      end if;
   end Overwrite;
 
   procedure Overwrite
     (Source   : in out Wide_Wide_String;
      Position : Positive;
      New_Item : Wide_Wide_String;
      Drop     : Truncation := Right)
   is
   begin
      Move (Source => Overwrite (Source, Position, New_Item),
            Target => Source,
            Drop   => Drop);
   end Overwrite;
 
   -------------------
   -- Replace_Slice --
   -------------------
 
   function Replace_Slice
     (Source : Wide_Wide_String;
      Low    : Positive;
      High   : Natural;
      By     : Wide_Wide_String) return Wide_Wide_String
   is
      Result_Length : Natural;
 
   begin
      if Low > Source'Last + 1 or else High < Source'First - 1 then
         raise Index_Error;
      else
         Result_Length :=
           Source'Length - Natural'Max (High - Low + 1, 0) + By'Length;
 
         declare
            Result : Wide_Wide_String (1 .. Result_Length);
 
         begin
            if High >= Low then
               Result :=
                  Source (Source'First .. Low - 1) & By &
                  Source (High + 1 .. Source'Last);
            else
               Result := Source (Source'First .. Low - 1) & By &
                         Source (Low .. Source'Last);
            end if;
 
            return Result;
         end;
      end if;
   end Replace_Slice;
 
   procedure Replace_Slice
     (Source   : in out Wide_Wide_String;
      Low      : Positive;
      High     : Natural;
      By       : Wide_Wide_String;
      Drop     : Truncation := Error;
      Justify  : Alignment  := Left;
      Pad      : Wide_Wide_Character  := Wide_Wide_Space)
   is
   begin
      Move (Replace_Slice (Source, Low, High, By), Source, Drop, Justify, Pad);
   end Replace_Slice;
 
   ----------
   -- Tail --
   ----------
 
   function Tail
     (Source : Wide_Wide_String;
      Count  : Natural;
      Pad    : Wide_Wide_Character := Wide_Wide_Space) return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Count);
 
   begin
      if Count < Source'Length then
         Result := Source (Source'Last - Count + 1 .. Source'Last);
 
      --  Pad on left
 
      else
         for J in 1 .. Count - Source'Length loop
            Result (J) := Pad;
         end loop;
 
         Result (Count - Source'Length + 1 .. Count) := Source;
      end if;
 
      return Result;
   end Tail;
 
   procedure Tail
     (Source  : in out Wide_Wide_String;
      Count   : Natural;
      Justify : Alignment := Left;
      Pad     : Wide_Wide_Character := Ada.Strings.Wide_Wide_Space)
   is
   begin
      Move (Source  => Tail (Source, Count, Pad),
            Target  => Source,
            Drop    => Error,
            Justify => Justify,
            Pad     => Pad);
   end Tail;
 
   ---------------
   -- Translate --
   ---------------
 
   function Translate
     (Source  : Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping)
      return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Source'Length);
 
   begin
      for J in Source'Range loop
         Result (J - (Source'First - 1)) := Value (Mapping, Source (J));
      end loop;
 
      return Result;
   end Translate;
 
   procedure Translate
     (Source  : in out Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping)
   is
   begin
      for J in Source'Range loop
         Source (J) := Value (Mapping, Source (J));
      end loop;
   end Translate;
 
   function Translate
     (Source  : Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
      return Wide_Wide_String
   is
      Result : Wide_Wide_String (1 .. Source'Length);
 
   begin
      for J in Source'Range loop
         Result (J - (Source'First - 1)) := Mapping (Source (J));
      end loop;
 
      return Result;
   end Translate;
 
   procedure Translate
     (Source  : in out Wide_Wide_String;
      Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
   is
   begin
      for J in Source'Range loop
         Source (J) := Mapping (Source (J));
      end loop;
   end Translate;
 
   ----------
   -- Trim --
   ----------
 
   function Trim
     (Source : Wide_Wide_String;
      Side   : Trim_End) return Wide_Wide_String
   is
      Low  : Natural := Source'First;
      High : Natural := Source'Last;
 
   begin
      if Side = Left or else Side = Both then
         while Low <= High and then Source (Low) = Wide_Wide_Space loop
            Low := Low + 1;
         end loop;
      end if;
 
      if Side = Right or else Side = Both then
         while High >= Low and then Source (High) = Wide_Wide_Space loop
            High := High - 1;
         end loop;
      end if;
 
      --  All blanks case
 
      if Low > High then
         return "";
 
      --  At least one non-blank
 
      else
         declare
            Result : constant Wide_Wide_String (1 .. High - Low + 1) :=
                       Source (Low .. High);
 
         begin
            return Result;
         end;
      end if;
   end Trim;
 
   procedure Trim
     (Source  : in out Wide_Wide_String;
      Side    : Trim_End;
      Justify : Alignment      := Left;
      Pad     : Wide_Wide_Character := Wide_Wide_Space)
   is
   begin
      Move (Source  => Trim (Source, Side),
            Target  => Source,
            Justify => Justify,
            Pad     => Pad);
   end Trim;
 
   function Trim
      (Source : Wide_Wide_String;
       Left   : Wide_Wide_Maps.Wide_Wide_Character_Set;
       Right  : Wide_Wide_Maps.Wide_Wide_Character_Set) return Wide_Wide_String
   is
      Low  : Natural := Source'First;
      High : Natural := Source'Last;
 
   begin
      while Low <= High and then Is_In (Source (Low), Left) loop
         Low := Low + 1;
      end loop;
 
      while High >= Low and then Is_In (Source (High), Right) loop
         High := High - 1;
      end loop;
 
      --  Case where source comprises only characters in the sets
 
      if Low > High then
         return "";
      else
         declare
            subtype WS is Wide_Wide_String (1 .. High - Low + 1);
 
         begin
            return WS (Source (Low .. High));
         end;
      end if;
   end Trim;
 
   procedure Trim
      (Source  : in out Wide_Wide_String;
       Left    : Wide_Wide_Maps.Wide_Wide_Character_Set;
       Right   : Wide_Wide_Maps.Wide_Wide_Character_Set;
       Justify : Alignment      := Strings.Left;
       Pad     : Wide_Wide_Character := Wide_Wide_Space)
   is
   begin
      Move (Source  => Trim (Source, Left, Right),
            Target  => Source,
            Justify => Justify,
            Pad     => Pad);
   end Trim;
 
end Ada.Strings.Wide_Wide_Fixed;

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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [a-stzfix.adb] - Blame information for rev 454

Line No.	Rev	Author	Line
1	281	jeremybenn	`------------------------------------------------------------------------------`
2			`-- --`
3			`-- GNAT RUN-TIME COMPONENTS --`
4			`-- --`
5			`-- A D A . S T R I N G S . W I D E _ F I X E D --`
6			`-- --`
7			`-- B o d y --`
8			`-- --`
9			`-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --`
10			`-- --`
11			`-- GNAT is free software; you can redistribute it and/or modify it under --`
12			`-- terms of the GNU General Public License as published by the Free Soft- --`
13			`-- ware Foundation; either version 3, or (at your option) any later ver- --`
14			`-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --`
15			`-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --`
16			`-- or FITNESS FOR A PARTICULAR PURPOSE. --`
17			`-- --`
18			`-- As a special exception under Section 7 of GPL version 3, you are granted --`
19			`-- additional permissions described in the GCC Runtime Library Exception, --`
20			`-- version 3.1, as published by the Free Software Foundation. --`
21			`-- --`
22			`-- You should have received a copy of the GNU General Public License and --`
23			`-- a copy of the GCC Runtime Library Exception along with this program; --`
24			`-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --`
25			`-- <http://www.gnu.org/licenses/>. --`
26			`-- --`
27			`-- GNAT was originally developed by the GNAT team at New York University. --`
28			`-- Extensive contributions were provided by Ada Core Technologies Inc. --`
29			`-- --`
30			`------------------------------------------------------------------------------`
31
32			`with Ada.Strings.Wide_Wide_Maps; use Ada.Strings.Wide_Wide_Maps;`
33			`with Ada.Strings.Wide_Wide_Search;`
34
35			`package body Ada.Strings.Wide_Wide_Fixed is`
36
37			`------------------------`
38			`-- Search Subprograms --`
39			`------------------------`
40
41			`function Index`
42			`(Source : Wide_Wide_String;`
43			`Pattern : Wide_Wide_String;`
44			`Going : Direction := Forward;`
45			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=`
46			`Wide_Wide_Maps.Identity)`
47			`return Natural`
48			`renames Ada.Strings.Wide_Wide_Search.Index;`
49
50			`function Index`
51			`(Source : Wide_Wide_String;`
52			`Pattern : Wide_Wide_String;`
53			`Going : Direction := Forward;`
54			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)`
55			`return Natural`
56			`renames Ada.Strings.Wide_Wide_Search.Index;`
57
58			`function Index`
59			`(Source : Wide_Wide_String;`
60			`Set : Wide_Wide_Maps.Wide_Wide_Character_Set;`
61			`Test : Membership := Inside;`
62			`Going : Direction := Forward) return Natural`
63			`renames Ada.Strings.Wide_Wide_Search.Index;`
64
65			`function Index`
66			`(Source : Wide_Wide_String;`
67			`Pattern : Wide_Wide_String;`
68			`From : Positive;`
69			`Going : Direction := Forward;`
70			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=`
71			`Wide_Wide_Maps.Identity)`
72			`return Natural`
73			`renames Ada.Strings.Wide_Wide_Search.Index;`
74
75			`function Index`
76			`(Source : Wide_Wide_String;`
77			`Pattern : Wide_Wide_String;`
78			`From : Positive;`
79			`Going : Direction := Forward;`
80			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)`
81			`return Natural`
82			`renames Ada.Strings.Wide_Wide_Search.Index;`
83
84			`function Index`
85			`(Source : Wide_Wide_String;`
86			`Set : Wide_Wide_Maps.Wide_Wide_Character_Set;`
87			`From : Positive;`
88			`Test : Membership := Inside;`
89			`Going : Direction := Forward) return Natural`
90			`renames Ada.Strings.Wide_Wide_Search.Index;`
91
92			`function Index_Non_Blank`
93			`(Source : Wide_Wide_String;`
94			`Going : Direction := Forward) return Natural`
95			`renames Ada.Strings.Wide_Wide_Search.Index_Non_Blank;`
96
97			`function Index_Non_Blank`
98			`(Source : Wide_Wide_String;`
99			`From : Positive;`
100			`Going : Direction := Forward) return Natural`
101			`renames Ada.Strings.Wide_Wide_Search.Index_Non_Blank;`
102
103			`function Count`
104			`(Source : Wide_Wide_String;`
105			`Pattern : Wide_Wide_String;`
106			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=`
107			`Wide_Wide_Maps.Identity)`
108			`return Natural`
109			`renames Ada.Strings.Wide_Wide_Search.Count;`
110
111			`function Count`
112			`(Source : Wide_Wide_String;`
113			`Pattern : Wide_Wide_String;`
114			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)`
115			`return Natural`
116			`renames Ada.Strings.Wide_Wide_Search.Count;`
117
118			`function Count`
119			`(Source : Wide_Wide_String;`
120			`Set : Wide_Wide_Maps.Wide_Wide_Character_Set) return Natural`
121			`renames Ada.Strings.Wide_Wide_Search.Count;`
122
123			`procedure Find_Token`
124			`(Source : Wide_Wide_String;`
125			`Set : Wide_Wide_Maps.Wide_Wide_Character_Set;`
126			`Test : Membership;`
127			`First : out Positive;`
128			`Last : out Natural)`
129			`renames Ada.Strings.Wide_Wide_Search.Find_Token;`
130
131			`---------`
132			`-- "*" --`
133			`---------`
134
135			`function "*"`
136			`(Left : Natural;`
137			`Right : Wide_Wide_Character) return Wide_Wide_String`
138			`is`
139			`Result : Wide_Wide_String (1 .. Left);`
140
141			`begin`
142			`for J in Result'Range loop`
143			`Result (J) := Right;`
144			`end loop;`
145
146			`return Result;`
147			`end "*";`
148
149			`function "*"`
150			`(Left : Natural;`
151			`Right : Wide_Wide_String) return Wide_Wide_String`
152			`is`
153			`Result : Wide_Wide_String (1 .. Left * Right'Length);`
154			`Ptr : Integer := 1;`
155
156			`begin`
157			`for J in 1 .. Left loop`
158			`Result (Ptr .. Ptr + Right'Length - 1) := Right;`
159			`Ptr := Ptr + Right'Length;`
160			`end loop;`
161
162			`return Result;`
163			`end "*";`
164
165			`------------`
166			`-- Delete --`
167			`------------`
168
169			`function Delete`
170			`(Source : Wide_Wide_String;`
171			`From : Positive;`
172			`Through : Natural) return Wide_Wide_String`
173			`is`
174			`begin`
175			`if From not in Source'Range`
176			`or else Through > Source'Last`
177			`then`
178			`raise Index_Error;`
179
180			`elsif From > Through then`
181			`return Source;`
182
183			`else`
184			`declare`
185			`Len : constant Integer := Source'Length - (Through - From + 1);`
186			`Result : constant Wide_Wide_String`
187			`(Source'First .. Source'First + Len - 1) :=`
188			`Source (Source'First .. From - 1) &`
189			`Source (Through + 1 .. Source'Last);`
190			`begin`
191			`return Result;`
192			`end;`
193			`end if;`
194			`end Delete;`
195
196			`procedure Delete`
197			`(Source : in out Wide_Wide_String;`
198			`From : Positive;`
199			`Through : Natural;`
200			`Justify : Alignment := Left;`
201			`Pad : Wide_Wide_Character := Wide_Wide_Space)`
202			`is`
203			`begin`
204			`Move (Source => Delete (Source, From, Through),`
205			`Target => Source,`
206			`Justify => Justify,`
207			`Pad => Pad);`
208			`end Delete;`
209
210			`----------`
211			`-- Head --`
212			`----------`
213
214			`function Head`
215			`(Source : Wide_Wide_String;`
216			`Count : Natural;`
217			`Pad : Wide_Wide_Character := Wide_Wide_Space) return Wide_Wide_String`
218			`is`
219			`Result : Wide_Wide_String (1 .. Count);`
220
221			`begin`
222			`if Count <= Source'Length then`
223			`Result := Source (Source'First .. Source'First + Count - 1);`
224
225			`else`
226			`Result (1 .. Source'Length) := Source;`
227
228			`for J in Source'Length + 1 .. Count loop`
229			`Result (J) := Pad;`
230			`end loop;`
231			`end if;`
232
233			`return Result;`
234			`end Head;`
235
236			`procedure Head`
237			`(Source : in out Wide_Wide_String;`
238			`Count : Natural;`
239			`Justify : Alignment := Left;`
240			`Pad : Wide_Wide_Character := Ada.Strings.Wide_Wide_Space)`
241			`is`
242			`begin`
243			`Move (Source => Head (Source, Count, Pad),`
244			`Target => Source,`
245			`Drop => Error,`
246			`Justify => Justify,`
247			`Pad => Pad);`
248			`end Head;`
249
250			`------------`
251			`-- Insert --`
252			`------------`
253
254			`function Insert`
255			`(Source : Wide_Wide_String;`
256			`Before : Positive;`
257			`New_Item : Wide_Wide_String) return Wide_Wide_String`
258			`is`
259			`Result : Wide_Wide_String (1 .. Source'Length + New_Item'Length);`
260
261			`begin`
262			`if Before < Source'First or else Before > Source'Last + 1 then`
263			`raise Index_Error;`
264			`end if;`
265
266			`Result := Source (Source'First .. Before - 1) & New_Item &`
267			`Source (Before .. Source'Last);`
268			`return Result;`
269			`end Insert;`
270
271			`procedure Insert`
272			`(Source : in out Wide_Wide_String;`
273			`Before : Positive;`
274			`New_Item : Wide_Wide_String;`
275			`Drop : Truncation := Error)`
276			`is`
277			`begin`
278			`Move (Source => Insert (Source, Before, New_Item),`
279			`Target => Source,`
280			`Drop => Drop);`
281			`end Insert;`
282
283			`----------`
284			`-- Move --`
285			`----------`
286
287			`procedure Move`
288			`(Source : Wide_Wide_String;`
289			`Target : out Wide_Wide_String;`
290			`Drop : Truncation := Error;`
291			`Justify : Alignment := Left;`
292			`Pad : Wide_Wide_Character := Wide_Wide_Space)`
293			`is`
294			`Sfirst : constant Integer := Source'First;`
295			`Slast : constant Integer := Source'Last;`
296			`Slength : constant Integer := Source'Length;`
297
298			`Tfirst : constant Integer := Target'First;`
299			`Tlast : constant Integer := Target'Last;`
300			`Tlength : constant Integer := Target'Length;`
301
302			`function Is_Padding (Item : Wide_Wide_String) return Boolean;`
303			`-- Determinbe if all characters in Item are pad characters`
304
305			`function Is_Padding (Item : Wide_Wide_String) return Boolean is`
306			`begin`
307			`for J in Item'Range loop`
308			`if Item (J) /= Pad then`
309			`return False;`
310			`end if;`
311			`end loop;`
312
313			`return True;`
314			`end Is_Padding;`
315
316			`-- Start of processing for Move`
317
318			`begin`
319			`if Slength = Tlength then`
320			`Target := Source;`
321
322			`elsif Slength > Tlength then`
323
324			`case Drop is`
325			`when Left =>`
326			`Target := Source (Slast - Tlength + 1 .. Slast);`
327
328			`when Right =>`
329			`Target := Source (Sfirst .. Sfirst + Tlength - 1);`
330
331			`when Error =>`
332			`case Justify is`
333			`when Left =>`
334			`if Is_Padding (Source (Sfirst + Tlength .. Slast)) then`
335			`Target :=`
336			`Source (Sfirst .. Sfirst + Target'Length - 1);`
337			`else`
338			`raise Length_Error;`
339			`end if;`
340
341			`when Right =>`
342			`if Is_Padding (Source (Sfirst .. Slast - Tlength)) then`
343			`Target := Source (Slast - Tlength + 1 .. Slast);`
344			`else`
345			`raise Length_Error;`
346			`end if;`
347
348			`when Center =>`
349			`raise Length_Error;`
350			`end case;`
351
352			`end case;`
353
354			`-- Source'Length < Target'Length`
355
356			`else`
357			`case Justify is`
358			`when Left =>`
359			`Target (Tfirst .. Tfirst + Slength - 1) := Source;`
360
361			`for J in Tfirst + Slength .. Tlast loop`
362			`Target (J) := Pad;`
363			`end loop;`
364
365			`when Right =>`
366			`for J in Tfirst .. Tlast - Slength loop`
367			`Target (J) := Pad;`
368			`end loop;`
369
370			`Target (Tlast - Slength + 1 .. Tlast) := Source;`
371
372			`when Center =>`
373			`declare`
374			`Front_Pad : constant Integer := (Tlength - Slength) / 2;`
375			`Tfirst_Fpad : constant Integer := Tfirst + Front_Pad;`
376
377			`begin`
378			`for J in Tfirst .. Tfirst_Fpad - 1 loop`
379			`Target (J) := Pad;`
380			`end loop;`
381
382			`Target (Tfirst_Fpad .. Tfirst_Fpad + Slength - 1) := Source;`
383
384			`for J in Tfirst_Fpad + Slength .. Tlast loop`
385			`Target (J) := Pad;`
386			`end loop;`
387			`end;`
388			`end case;`
389			`end if;`
390			`end Move;`
391
392			`---------------`
393			`-- Overwrite --`
394			`---------------`
395
396			`function Overwrite`
397			`(Source : Wide_Wide_String;`
398			`Position : Positive;`
399			`New_Item : Wide_Wide_String) return Wide_Wide_String`
400			`is`
401			`begin`
402			`if Position not in Source'First .. Source'Last + 1 then`
403			`raise Index_Error;`
404			`else`
405			`declare`
406			`Result_Length : constant Natural :=`
407			`Natural'Max`
408			`(Source'Length,`
409			`Position - Source'First + New_Item'Length);`
410
411			`Result : Wide_Wide_String (1 .. Result_Length);`
412
413			`begin`
414			`Result := Source (Source'First .. Position - 1) & New_Item &`
415			`Source (Position + New_Item'Length .. Source'Last);`
416			`return Result;`
417			`end;`
418			`end if;`
419			`end Overwrite;`
420
421			`procedure Overwrite`
422			`(Source : in out Wide_Wide_String;`
423			`Position : Positive;`
424			`New_Item : Wide_Wide_String;`
425			`Drop : Truncation := Right)`
426			`is`
427			`begin`
428			`Move (Source => Overwrite (Source, Position, New_Item),`
429			`Target => Source,`
430			`Drop => Drop);`
431			`end Overwrite;`
432
433			`-------------------`
434			`-- Replace_Slice --`
435			`-------------------`
436
437			`function Replace_Slice`
438			`(Source : Wide_Wide_String;`
439			`Low : Positive;`
440			`High : Natural;`
441			`By : Wide_Wide_String) return Wide_Wide_String`
442			`is`
443			`Result_Length : Natural;`
444
445			`begin`
446			`if Low > Source'Last + 1 or else High < Source'First - 1 then`
447			`raise Index_Error;`
448			`else`
449			`Result_Length :=`
450			`Source'Length - Natural'Max (High - Low + 1, 0) + By'Length;`
451
452			`declare`
453			`Result : Wide_Wide_String (1 .. Result_Length);`
454
455			`begin`
456			`if High >= Low then`
457			`Result :=`
458			`Source (Source'First .. Low - 1) & By &`
459			`Source (High + 1 .. Source'Last);`
460			`else`
461			`Result := Source (Source'First .. Low - 1) & By &`
462			`Source (Low .. Source'Last);`
463			`end if;`
464
465			`return Result;`
466			`end;`
467			`end if;`
468			`end Replace_Slice;`
469
470			`procedure Replace_Slice`
471			`(Source : in out Wide_Wide_String;`
472			`Low : Positive;`
473			`High : Natural;`
474			`By : Wide_Wide_String;`
475			`Drop : Truncation := Error;`
476			`Justify : Alignment := Left;`
477			`Pad : Wide_Wide_Character := Wide_Wide_Space)`
478			`is`
479			`begin`
480			`Move (Replace_Slice (Source, Low, High, By), Source, Drop, Justify, Pad);`
481			`end Replace_Slice;`
482
483			`----------`
484			`-- Tail --`
485			`----------`
486
487			`function Tail`
488			`(Source : Wide_Wide_String;`
489			`Count : Natural;`
490			`Pad : Wide_Wide_Character := Wide_Wide_Space) return Wide_Wide_String`
491			`is`
492			`Result : Wide_Wide_String (1 .. Count);`
493
494			`begin`
495			`if Count < Source'Length then`
496			`Result := Source (Source'Last - Count + 1 .. Source'Last);`
497
498			`-- Pad on left`
499
500			`else`
501			`for J in 1 .. Count - Source'Length loop`
502			`Result (J) := Pad;`
503			`end loop;`
504
505			`Result (Count - Source'Length + 1 .. Count) := Source;`
506			`end if;`
507
508			`return Result;`
509			`end Tail;`
510
511			`procedure Tail`
512			`(Source : in out Wide_Wide_String;`
513			`Count : Natural;`
514			`Justify : Alignment := Left;`
515			`Pad : Wide_Wide_Character := Ada.Strings.Wide_Wide_Space)`
516			`is`
517			`begin`
518			`Move (Source => Tail (Source, Count, Pad),`
519			`Target => Source,`
520			`Drop => Error,`
521			`Justify => Justify,`
522			`Pad => Pad);`
523			`end Tail;`
524
525			`---------------`
526			`-- Translate --`
527			`---------------`
528
529			`function Translate`
530			`(Source : Wide_Wide_String;`
531			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping)`
532			`return Wide_Wide_String`
533			`is`
534			`Result : Wide_Wide_String (1 .. Source'Length);`
535
536			`begin`
537			`for J in Source'Range loop`
538			`Result (J - (Source'First - 1)) := Value (Mapping, Source (J));`
539			`end loop;`
540
541			`return Result;`
542			`end Translate;`
543
544			`procedure Translate`
545			`(Source : in out Wide_Wide_String;`
546			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping)`
547			`is`
548			`begin`
549			`for J in Source'Range loop`
550			`Source (J) := Value (Mapping, Source (J));`
551			`end loop;`
552			`end Translate;`
553
554			`function Translate`
555			`(Source : Wide_Wide_String;`
556			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)`
557			`return Wide_Wide_String`
558			`is`
559			`Result : Wide_Wide_String (1 .. Source'Length);`
560
561			`begin`
562			`for J in Source'Range loop`
563			`Result (J - (Source'First - 1)) := Mapping (Source (J));`
564			`end loop;`
565
566			`return Result;`
567			`end Translate;`
568
569			`procedure Translate`
570			`(Source : in out Wide_Wide_String;`
571			`Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)`
572			`is`
573			`begin`
574			`for J in Source'Range loop`
575			`Source (J) := Mapping (Source (J));`
576			`end loop;`
577			`end Translate;`
578
579			`----------`
580			`-- Trim --`
581			`----------`
582
583			`function Trim`
584			`(Source : Wide_Wide_String;`
585			`Side : Trim_End) return Wide_Wide_String`
586			`is`
587			`Low : Natural := Source'First;`
588			`High : Natural := Source'Last;`
589
590			`begin`
591			`if Side = Left or else Side = Both then`
592			`while Low <= High and then Source (Low) = Wide_Wide_Space loop`
593			`Low := Low + 1;`
594			`end loop;`
595			`end if;`
596
597			`if Side = Right or else Side = Both then`
598			`while High >= Low and then Source (High) = Wide_Wide_Space loop`
599			`High := High - 1;`
600			`end loop;`
601			`end if;`
602
603			`-- All blanks case`
604
605			`if Low > High then`
606			`return "";`
607
608			`-- At least one non-blank`
609
610			`else`
611			`declare`
612			`Result : constant Wide_Wide_String (1 .. High - Low + 1) :=`
613			`Source (Low .. High);`
614
615			`begin`
616			`return Result;`
617			`end;`
618			`end if;`
619			`end Trim;`
620
621			`procedure Trim`
622			`(Source : in out Wide_Wide_String;`
623			`Side : Trim_End;`
624			`Justify : Alignment := Left;`
625			`Pad : Wide_Wide_Character := Wide_Wide_Space)`
626			`is`
627			`begin`
628			`Move (Source => Trim (Source, Side),`
629			`Target => Source,`
630			`Justify => Justify,`
631			`Pad => Pad);`
632			`end Trim;`
633
634			`function Trim`
635			`(Source : Wide_Wide_String;`
636			`Left : Wide_Wide_Maps.Wide_Wide_Character_Set;`
637			`Right : Wide_Wide_Maps.Wide_Wide_Character_Set) return Wide_Wide_String`
638			`is`
639			`Low : Natural := Source'First;`
640			`High : Natural := Source'Last;`
641
642			`begin`
643			`while Low <= High and then Is_In (Source (Low), Left) loop`
644			`Low := Low + 1;`
645			`end loop;`
646
647			`while High >= Low and then Is_In (Source (High), Right) loop`
648			`High := High - 1;`
649			`end loop;`
650
651			`-- Case where source comprises only characters in the sets`
652
653			`if Low > High then`
654			`return "";`
655			`else`
656			`declare`
657			`subtype WS is Wide_Wide_String (1 .. High - Low + 1);`
658
659			`begin`
660			`return WS (Source (Low .. High));`
661			`end;`
662			`end if;`
663			`end Trim;`
664
665			`procedure Trim`
666			`(Source : in out Wide_Wide_String;`
667			`Left : Wide_Wide_Maps.Wide_Wide_Character_Set;`
668			`Right : Wide_Wide_Maps.Wide_Wide_Character_Set;`
669			`Justify : Alignment := Strings.Left;`
670			`Pad : Wide_Wide_Character := Wide_Wide_Space)`
671			`is`
672			`begin`
673			`Move (Source => Trim (Source, Left, Right),`
674			`Target => Source,`
675			`Justify => Justify,`
676			`Pad => Pad);`
677			`end Trim;`
678
679			`end Ada.Strings.Wide_Wide_Fixed;`