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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- G N A T . D I R E C T O R Y _ O P E R A T I O N S . I T E R A T I O N --
-- --
-- S p e c --
-- --
-- $Revision$
-- --
-- Copyright (C) 2001 Ada Core Technologies, 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
-- Iterators among files
package GNAT.Directory_Operations.Iteration is
generic
with procedure Action
(Item : String;
Index : Positive;
Quit : in out Boolean);
procedure Find
(Root_Directory : Dir_Name_Str;
File_Pattern : String);
-- Recursively searches the directory structure rooted at Root_Directory.
-- This provides functionality similar to the UNIX 'find' command.
-- Action will be called for every item matching the regular expression
-- File_Pattern (see GNAT.Regexp). Item is the full pathname to the file
-- starting with Root_Directory that has been matched. Index is set to one
-- for the first call and is incremented by one at each call. The iterator
-- will pass in the value False on each call to Action. The iterator will
-- terminate after passing the last matched path to Action or after
-- returning from a call to Action which sets Quit to True.
-- Raises GNAT.Regexp.Error_In_Regexp if File_Pattern is ill formed.
generic
with procedure Action
(Item : String;
Index : Positive;
Quit : in out Boolean);
procedure Wildcard_Iterator (Path : Path_Name);
-- Calls Action for each path matching Path. Path can include wildcards '*'
-- and '?' and [...]. The rules are:
--
-- * can be replaced by any sequence of characters
-- ? can be replaced by a single character
-- [a-z] match one character in the range 'a' through 'z'
-- [abc] match either character 'a', 'b' or 'c'
--
-- Item is the filename that has been matched. Index is set to one for the
-- first call and is incremented by one at each call. The iterator's
-- termination can be controlled by setting Quit to True. It is by default
-- set to False.
--
-- For example, if we have the following directory structure:
-- /boo/
-- foo.ads
-- /sed/
-- foo.ads
-- file/
-- foo.ads
-- /sid/
-- foo.ads
-- file/
-- foo.ads
-- /life/
--
-- A call with expression "/s*/file/*" will call Action for the following
-- items:
-- /sed/file/foo.ads
-- /sid/file/foo.ads
end GNAT.Directory_Operations.Iteration;
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