Support C# format strings in config

[9swampy]

Description

Support C# format strings in config

Related Issue

Fixes #4156

Motivation and Context

#4156

How Has This Been Tested?

I've implemented a number of formatters and added scenario coverage for implementation but a 4-eyes verification and feedback on appropriateness of scenarios included (or not) would be welcome. The specific scenrio noted on the wish-issue tested here and here.

I've an aversion to Helper classes but that's where I've dropped all this as an extension of the original StringFormatWith but please redirect if it should live elsewhere (or just needs some structure).

Screenshots (if appropriate):

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[arturcic]

please rebase and resolve the conflicts

[asbjornu]

Awesome work! ❤️

[asbjornu]

Besides the build failure, this is looking really good! The only missing part is documentation.

[arturcic]

@9swampy if you don't mind I'll have a review of this in 2 weeks time as I'm on vacation. I need to understand it a bit in detail the changes as there is a chance we will need to maintain these changes.

[phatcher]

Can I also suggest adding some tests that use the zero-suppression syntax so that we can get versions without a commits number e.g.

[TestCase(0, "{0:0000}", "0000")]
[TestCase(1, "{0:0000}", "0001")]
[TestCase(0, "{0:-0000;;''}", "")]
[TestCase(1, "{0:-0000;;''}", "-0001")]
public void ZeroFormatting(int value, string template, string expected)
{
    var candidate = string.Format(template, value);

    Assert.That(candidate, Is.EqualTo(expected));
}

[arturcic]

@9swampy could you please rebase your branch onto latest main and fix the conflict?

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[mergify]

Thank you @9swampy for your contribution!