swapcase

Swap the case of a string using a word based algorithm.

Conversion algorithm:

• Upper case character converts to Lower case
• Title case character converts to Lower case
• Lower case character after Whitespace or at start converts to Title case
• Other Lower case character converts to Upper case
• Whitespace is defined by unicode.IsSpace(char)

swapcase "This Is A.Test"

This above will produce tHIS iS a.tEST.