+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- P R J . U T I L --
--- --
--- S p e c --
--- --
--- $Revision: 1.2.12.1 $
--- --
--- Copyright (C) 2001 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 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. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
---
--- Utilities when using project files.
-
-with GNAT.OS_Lib; use GNAT.OS_Lib;
-with Types; use Types;
-
-package Prj.Util is
-
- function Value_Of
- (Variable : Variable_Value;
- Default : String)
- return String;
- -- Get the value of a single string variable. If Variable is
- -- Nil_Variable_Value, is a string list or is defaulted, return Default.
-
- function Value_Of
- (Index : Name_Id;
- In_Array : Array_Element_Id)
- return Name_Id;
- -- Get a single string array component.
- -- Returns No_Name if there is no component Index (case sensitive),
- -- if In_Array is null, or if the component is a String list.
-
- function Value_Of
- (Index : Name_Id;
- In_Array : Array_Element_Id)
- return Variable_Value;
- -- Get a string array component (single String or String list).
- -- Returns Nil_Variable_Value if there is no component Index
- -- (case sensitive), or if In_Array is null.
-
- function Value_Of
- (Name : Name_Id;
- Attribute_Or_Array_Name : Name_Id;
- In_Package : Package_Id)
- return Variable_Value;
- -- In a specific package,
- -- - if there exists an array Variable_Or_Array_Name with an index
- -- Name, returns the corresponding component,
- -- - otherwise if there is a attribute Attribute_Or_Array_Name,
- -- returns this attribute,
- -- - otherwise, returns Nil_Variable_Value.
- -- If In_Package is null, returns Nil_Variable_Value.
-
- function Value_Of
- (Index : Name_Id;
- In_Array : Name_Id;
- In_Arrays : Array_Id)
- return Name_Id;
- -- Get a string array component in an array of an array list.
- -- Returns No_Name if there is no component Index (case sensitive),
- -- if In_Arrays is null, if In_Array is not found in In_Arrays,
- -- or if the component is a String list.
-
- function Value_Of
- (Name : Name_Id;
- In_Arrays : Array_Id)
- return Array_Element_Id;
- -- Returns a specified array in an array list. Returns No_Array_Element
- -- if In_Arrays is null or if Name is not the name of an array in
- -- In_Arrays. The caller must ensure that Name is in lower case.
-
- function Value_Of
- (Name : Name_Id;
- In_Packages : Package_Id)
- return Package_Id;
- -- Returns a specified package in a package list. Returns No_Package
- -- if In_Packages is null or if Name is not the name of a package in
- -- Package_List. The caller must ensure that Name is in lower case.
-
- function Value_Of
- (Variable_Name : Name_Id;
- In_Variables : Variable_Id)
- return Variable_Value;
- -- Returns a specified variable in a variable list. Returns null if
- -- In_Variables is null or if Variable_Name is not the name of a
- -- variable in In_Variables. Caller must ensure that Name is lower case.
-
- procedure Write_Str
- (S : String;
- Max_Length : Positive;
- Separator : Character);
- -- Output string S using Output.Write_Str. If S is too long to fit in
- -- one line of Max_Length, cut it in several lines, using Separator as
- -- the last character of each line, if possible.
-
- type Text_File is limited private;
- -- Represents a text file. Default is invalid text file.
-
- function Is_Valid (File : Text_File) return Boolean;
- -- Returns True if File designates an open text file that
- -- has not yet been closed.
-
- procedure Open (File : out Text_File; Name : String);
- -- Open a text file. If this procedure fails, File is invalid.
-
- function End_Of_File (File : Text_File) return Boolean;
- -- Returns True if the end of the text file File has been
- -- reached. Fails if File is invalid.
-
- procedure Get_Line
- (File : Text_File;
- Line : out String;
- Last : out Natural);
- -- Reads a line from an open text file. Fails if File is invalid.
-
- procedure Close (File : in out Text_File);
- -- Close an open text file. File becomes invalid.
- -- Fails if File is already invalid.
-
-private
-
- type Text_File_Data is record
- FD : File_Descriptor := Invalid_FD;
- Buffer : String (1 .. 1_000);
- Buffer_Len : Natural;
- Cursor : Natural := 0;
- End_Of_File_Reached : Boolean := False;
- end record;
-
- type Text_File is access Text_File_Data;
-
-end Prj.Util;
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