Helpers

[brikis98]

This PR adds a bunch of handy string and math helpers to boilerplate, such as dasherize, snakeCase, and round. This allows us to use a single value entered by a user in many different ways. For example, if a boilerplate.yml file defines a variable called companyName, and the user enters the name “Acme Co”, with these helpers, it’s now easy to generate a variety of different types of valid code with that text, such as:

• Java package name: {{ .companyName | camelCase }} => “AcmeCo”
• Terraform resource name: {{ .companyName | snakeCase }} => “acme_co”
• CSS class name: {{ .companyName | dasherize }} => “acme-co”

BTW, this took quite a bit longer than expected because Go does not have many of these basic string and math manipulation functions built in. It doesn't even have a method to round numbers!! I found some open source implementations, but most were broken and incomplete, so I implemented my own with a thorough suite of tests.

[brikis98]

@josh-padnick This is ready for review.

[josh-padnick]

It doesn't even have a method to round numbers!! I found some open source implementations, but most were broken and incomplete, so I implemented my own with a thorough suite of tests.

That is crazy. I had to google it myself to satisfy my incredulity!

[josh-padnick]

This code looks excellent. Nicely done as usual!