I presume that the varcaser was never designed/intended to be used with input with spaces. However I do hope that it still works -- this is what I discovered:

varcaser.Caser{
			From: varcaser.LowerCamelCase, To: varcaser.LowerSnakeCase}.
			String("GNU PYTHON Standard")

The output of above code is not "gnu python standard", but oddly, it is

gn_u _pytho_n _standard

I.e., look at those extra "_" that the plain "gnu python standard" doesn't have.

Would you consider it bug?
Would it possibly be fixed?

Thx

Introduction

Current implementation of Varcaser doesn't implement strings.replacer. There's an internal interface in go's std-lib: strings.replacer. It is the good way to standardize all string-replacers.

Problem

The implementation doesn't allow us to use Varcaser, where strings.replacer is expected.

Solution

Implement the interface.

Notes

This Issue has solution in the PR #3

For varcaser.Caser{ From: varcaser.ScreamingSnakeCase, To: varcaser.UpperCamelCaseKeepCaps}
the output is wrong IMHO --

E.g., for MY_CONSTANT_VARIABLE, I'm expecting the output to be MyConstantVariable, but I'm currently getting MYCONSTANTVARIABLE instead.