rebase: vendor files required for kmip

Signed-off-by: Rakshith R <rar@redhat.com>

vendor/github.com/gemalto/kmip-go/internal/kmiputil/names.go

@@ -0,0 +1,62 @@
+package kmiputil
+
+import (
+	"regexp"
+	"strings"
+
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
+)
+
+var (
+	nonWordAtWordBoundary = regexp.MustCompile(`(\W)([a-zA-Z][a-z])`)
+	startingDigits        = regexp.MustCompile(`^([\d]+)(.*)`)
+)
+
+// NormalizeName converts a string into the CamelCase format required for the XML and JSON encoding
+// of KMIP values.  It should be used for tag names, type names, and enumeration value names.
+// Implementation of 5.4.1.1 and 5.5.1.1 from the KMIP Profiles specification.
+func NormalizeName(s string) string {
+	// 1. Replace round brackets ‘(‘, ‘)’ with spaces
+	s = strings.Map(func(r rune) rune {
+		switch r {
+		case '(', ')':
+			return ' '
+		}
+
+		return r
+	}, s)
+
+	// 2. If a non-word char (not alpha, digit or underscore) is followed by a letter (either upper or lower case) then a lower case letter, replace the non-word char with space
+	s = nonWordAtWordBoundary.ReplaceAllString(s, " $2")
+
+	// 3. Replace remaining non-word chars (except whitespace) with underscore.
+	s = strings.Map(func(r rune) rune {
+		switch {
+		case r >= 'a' && r <= 'z':
+		case r >= 'A' && r <= 'Z':
+		case r >= '0' && r <= '9':
+		case r == '_':
+		case r == ' ':
+		default:
+			return '_'
+		}
+
+		return r
+	}, s)
+
+	words := strings.Split(s, " ")
+
+	for i, w := range words {
+		if i == 0 {
+			// 4. If the first word begins with a digit, move all digits at start of first word to end of first word
+			w = startingDigits.ReplaceAllString(w, `$2$1`)
+		}
+
+		// 5. Capitalize the first letter of each word
+		words[i] = cases.Title(language.AmericanEnglish, cases.NoLower).String(w)
+	}
+
+	// 6. Concatenate all words with spaces removed
+	return strings.Join(words, "")
+}