kubernetes/vendor/google.golang.org/protobuf/internal/encoding/text/decode_string.go

// parseStringValue parses string field token.
// This differs from parseString since the text format allows
// multiple back-to-back string literals where they are semantically treated
// as a single large string with all values concatenated.
//
// E.g., `"foo" "bar" "baz"` => "foobarbaz"
func (d *Decoder) parseStringValue() (Token, error) { … }

// parseString parses a string value enclosed in " or '.
func (d *Decoder) parseString() (string, error) { … }

// indexNeedEscapeInString returns the index of the character that needs
// escaping. If no characters need escaping, this returns the input length.
func indexNeedEscapeInBytes(b []byte) int { … }

// UnmarshalString returns an unescaped string given a textproto string value.
// String value needs to contain single or double quotes. This is only used by
// internal/encoding/defval package for unmarshaling bytes.
func UnmarshalString(s string) (string, error) { … }