kubernetes/vendor/github.com/fatih/camelcase/camelcase.go

// Split splits the camelcase word and returns a list of words. It also
// supports digits. Both lower camel case and upper camel case are supported.
// For more info please check: http://en.wikipedia.org/wiki/CamelCase
//
// Examples
//
//   "" =>                     [""]
//   "lowercase" =>            ["lowercase"]
//   "Class" =>                ["Class"]
//   "MyClass" =>              ["My", "Class"]
//   "MyC" =>                  ["My", "C"]
//   "HTML" =>                 ["HTML"]
//   "PDFLoader" =>            ["PDF", "Loader"]
//   "AString" =>              ["A", "String"]
//   "SimpleXMLParser" =>      ["Simple", "XML", "Parser"]
//   "vimRPCPlugin" =>         ["vim", "RPC", "Plugin"]
//   "GL11Version" =>          ["GL", "11", "Version"]
//   "99Bottles" =>            ["99", "Bottles"]
//   "May5" =>                 ["May", "5"]
//   "BFG9000" =>              ["BFG", "9000"]
//   "BöseÜberraschung" =>     ["Böse", "Überraschung"]
//   "Two  spaces" =>          ["Two", "  ", "spaces"]
//   "BadUTF8\xe2\xe2\xa1" =>  ["BadUTF8\xe2\xe2\xa1"]
//
// Splitting rules
//
//  1) If string is not valid UTF-8, return it without splitting as
//     single item array.
//  2) Assign all unicode characters into one of 4 sets: lower case
//     letters, upper case letters, numbers, and all other characters.
//  3) Iterate through characters of string, introducing splits
//     between adjacent characters that belong to different sets.
//  4) Iterate through array of split strings, and if a given string
//     is upper case:
//       if subsequent string is lower case:
//         move last character of upper case string to beginning of
//         lower case string
func Split(src string) (entries []string) { … }