What is a good configuration file tool for C#

I'm writing a new C# application which will make heavy use of a configuration file. My requirements are:

1. Human readable
2. Name value pairs
3. Hierarchical
4. [Updatable by application]

Um, to transla开发者_运维技巧te: I want to define an object and a set of configuration parameters associated with that object. The configuration parameters may be name value pairs or another object, with it's own attributes attached:

module "db" { host: "db.example.com"; encoder "zip" { compression: 10; } }

I'm less committed to requirement 4, but do consider that I would like the application to update a setting and write it back to the configuration file.

I am aware of the following options:

1. XML. Not sufficiently human readable.
2. INI file. Not hierarchal
3. JSON.
4. YAML.

JSON and YAML seem worth investigating.

Advise on using these for configuration? Any alternate tools I may want to consider?

As for persisting changes made by the application back to the config file I know that JSON and YAML can do this but can either do this WHILE saving comments which may have been in the original human edited version?

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No sense in rebuilding the wheel. Why not just use the built-in configuration API? It uses XML, so you can edit by hand at run-time if you want to. there is a built-in editor in the IDE to edit at build-time.

here is more from MSDN

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I use custom configuration files when I need to do something like that. Here's how I did it.