Update vendor

vendor/github.com/jedib0t/go-pretty/v6/text/format.go

@@ -0,0 +1,100 @@
+package text
+
+import (
+	"strings"
+	"unicode"
+)
+
+// Format lets you transform the text in supported methods while keeping escape
+// sequences in the string intact and untouched.
+type Format int
+
+// Format enumerations
+const (
+	FormatDefault Format = iota // default_Case
+	FormatLower                 // lower
+	FormatTitle                 // Title
+	FormatUpper                 // UPPER
+)
+
+// Apply converts the text as directed.
+func (tc Format) Apply(text string) string {
+	switch tc {
+	case FormatLower:
+		return strings.ToLower(text)
+	case FormatTitle:
+		return toTitle(text)
+	case FormatUpper:
+		return toUpper(text)
+	default:
+		return text
+	}
+}
+
+func toTitle(text string) string {
+	prev, inEscSeq := ' ', false
+	return strings.Map(
+		func(r rune) rune {
+			if r == EscapeStartRune {
+				inEscSeq = true
+			}
+			if !inEscSeq {
+				if isSeparator(prev) {
+					prev = r
+					r = unicode.ToUpper(r)
+				} else {
+					prev = r
+				}
+			}
+			if inEscSeq && r == EscapeStopRune {
+				inEscSeq = false
+			}
+			return r
+		},
+		text,
+	)
+}
+
+func toUpper(text string) string {
+	inEscSeq := false
+	return strings.Map(
+		func(r rune) rune {
+			if r == EscapeStartRune {
+				inEscSeq = true
+			}
+			if !inEscSeq {
+				r = unicode.ToUpper(r)
+			}
+			if inEscSeq && r == EscapeStopRune {
+				inEscSeq = false
+			}
+			return r
+		},
+		text,
+	)
+}
+
+// isSeparator returns true if the given rune is a separator. This function is
+// lifted straight out of the standard library @ strings/strings.go.
+func isSeparator(r rune) bool {
+	// ASCII alphanumerics and underscore are not separators
+	if r <= 0x7F {
+		switch {
+		case '0' <= r && r <= '9':
+			return false
+		case 'a' <= r && r <= 'z':
+			return false
+		case 'A' <= r && r <= 'Z':
+			return false
+		case r == '_':
+			return false
+		}
+		return true
+	}
+	// Letters and digits are not separators
+	if unicode.IsLetter(r) || unicode.IsDigit(r) {
+		return false
+	}
+	// Otherwise, all we can do for now is treat spaces as separators.
+	return unicode.IsSpace(r)
+}