File : agpl-strings.adb


------------------------------------------------------------------------------

--                         ADAGIO - ADALID - AENEA.                         --

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--                            Copyright (C) 2003                            --

--                                 A. Mosteo.                               --

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--  Authors: A. Mosteo. (adagio@mosteo.com)                                 --

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------------------------------------------------------------------------------

--  $Id: agpl-strings.adb,v 1.3 2004/02/03 22:52:08 Jano Exp $


with Ada.Characters.Handling;
with Ada.Strings;
with Ada.Strings.Fixed;

with Text_io;

package body Agpl.Strings is

   ------------------------------------------------------------------------

   -- Pos                                                                --

   ------------------------------------------------------------------------

   -- Pos of Pattern in S, starting at Start

   -- Returns 0 if not found

   function Pos (S : in String; Pattern : in String; Start : in Positive := 1)
      return Natural
   is
      use Ada.Strings.Fixed;
   begin
      return Index (S (Start .. S'Last), Pattern);
   end Pos;

   ------------------------------------------------------------------------

   -- To_lower                                                           --

   ------------------------------------------------------------------------

   function To_lower (This : in String) return String is
   begin
      return Ada.Characters.Handling.To_lower (This);
   end To_lower;

   ------------------------------------------------------------------------

   -- To_upper                                                           --

   ------------------------------------------------------------------------

   function To_upper (This : in String) return String is
   begin
      return Ada.Characters.Handling.To_upper (This);
   end To_upper;

   ------------------------------------------------------------------------

   -- Trim                                                               --

   ------------------------------------------------------------------------

   function Trim (This : in String) return String is
   begin
      return Ada.Strings.Fixed.Trim (This, Ada.Strings.Both);
   end Trim;

   ------------------------------------------------------------------------

   -- To_string                                                          --

   ------------------------------------------------------------------------

   function To_string (N : Integer) return String is
   begin
      return Trim (Integer'Image (N));
   end To_string;

   function To_string (N : Float; Decimals : Natural := 2) return String is
      package f_io is new Text_io.Float_io (Float);
      S    : String (1 .. 100);
   begin
      f_io.Put (S, N, Aft => Decimals, Exp => 0);
      return Trim (S);
   end To_string;

   ------------------------------------------------------------------------

   -- Rpad                                                               --

   ------------------------------------------------------------------------

   function Rpad (
      S    : in String; 
      Size : in Natural; 
      Fill : in Character := ' ') return String 
   is
      Pre : String := (1 .. Size => Fill) & S;
   begin
      return Pre (Pre'Last - Size + 1 .. Pre'Last);
   end Rpad;

end Agpl.Strings;