The Ini file manager consists of a single package, Config, which can read and modify informations from various configuration files known as "ini" files. They are called "ini" files because they have often the ".ini" extension, but some also have ".inf", ".cfg" extensions. They are actually text files which look like the following:

 ; Comment line
 
 [Section 1]
 a_string = abcd     # a comment here...
 a_number = +123.456 ; another comment
 
 [Section 2]
 a_string = efgh

For more examples in this format, just search files with the .ini extension on your computer! The Config package is typically used as in the following demo procedure:

    with Config; use Config;
    with Ada.Text_IO; use Ada.Text_IO;
    procedure Small_demo is
      c: Configuration;
    begin
      Init(c, "config.ini");
      Put_Line(Value_Of(c, "Section 2", "a_string"));
    end;

• config.ads : package specification
• config.adb : package body
• tests/test_config.adb : test/demo procedure
• ini_files.gpr : project file for the GNAT compiler
• ini_files_oa.prj : project file for the ObjectAda compiler
• README.md : this file

There is NO WARRANTY in this software. Read copyright notice in config.ads.

For building with GNAT/GCC: - type "gprbuild -p -P ini_files.gpr" in the command line or - use the project file, ini_files.gpr, from the GNAT Programming Studio (GPS); press F4 or - copy the two files config.ads and config.adb to your project or - open test_config.adb with AdaGIDE, press F3 or - your way...

For building with ObjectAda, you can use the ini_files_oa.prj project file.

For other compilers, it should be simple as well: have config.ads, config.adb, test_config.adb at the same place and build test_config as the main program.

As a result there is a test_config[.exe] executable.

Chances are that the only usage you'll make of Config will be to read values from a configuration file. This is done with the function Value_Of as in the example above.

If you need to update the configuration file, you can replace single values (Replace_Value) or whole sections (Replace_Section). If you need to rewrite the entire configuration file, it is simpler to do it in one go, with Put_Line's.

Look at test_config.adb for a complete example, especially when it comes to handle numerical errors contained in a configuration file.

Enjoy!

Gautier de Montmollin & Rolf Ebert