Support German with Solid text engine for NumbifyBuilder

[rus4j]

We want to be able to configure Numbify for German language with Solid text via NumbifyBuilder:

Numbify de = new NumbifyBuilder()
    .german(Currency.NUMBER)
    .build();

de.toText(1_024); // eintausendvierundzwanzig

Requirements

• Add public NumbifyBuilder german(Currency currency) to NumbifyBuilder.
• By default this method should use SolidText as text engine for int and decimal part of the number.
• Add simple test to GermanTest, DeCurrencyTest and DeCurrencyDecimalTest.

[vismitha05]

Hi @numbify-team First-time contributor here. I'd love to implement German localization!

Planned implementation:

• Add german(Currency.NUMBER) method to NumbifyBuilder
• Implement German number-to-text rules (eintausendvierundzwanzig)
• Add tests for 1-10k numbers
• Update README example

Can I take this? Thanks!

[rus4j]

Hi @vismitha05!
Thank you for your willingness to help. There are a few details that need to be mentioned:

• German number to text rules itself are already implemented in add german lang support #26. We are waiting to merge that.
• There are plans to rewrite README file completely. So going to create a separate issue for that.

So there a few things left to do:

• add .german(...) method to NumbifyBuilder as your plan said
• also add some methods to NumbifyBuilder for various TextEngine features. Like SolidText, DigitByDigitText, CustomText.
• tests

If you are ready to take this, I will add more details in issue description with examples as soon as #26 is ready

[vismitha05]

Thanks for the clarification, @rus4j
Yes, I’m happy to take this on. I’ll wait for #26 to be merged and then follow the updated issue details. Looking forward to it!

[rus4j]

@vismitha05, #26 has been merged, so this issue can be taken.
See the updated Requirements block in issue description. Thanks!