package utf8

Import Path
	unicode/utf8 (on golang.org and go.dev)

Dependency Relation
	imports 0 packages, and imported by 26 packages

Involved Source Files
	d-> utf8.go

Exported Type Names

	(none)
Exported Values

	 func DecodeLastRune(p []byte) (r rune, size int)
		DecodeLastRune unpacks the last UTF-8 encoding in p and returns the rune and
		its width in bytes. If p is empty it returns (RuneError, 0). Otherwise, if
		the encoding is invalid, it returns (RuneError, 1). Both are impossible
		results for correct, non-empty UTF-8.

		An encoding is invalid if it is incorrect UTF-8, encodes a rune that is
		out of range, or is not the shortest possible UTF-8 encoding for the
		value. No other validation is performed.
	 func DecodeLastRuneInString(s string) (r rune, size int)
		DecodeLastRuneInString is like DecodeLastRune but its input is a string. If
		s is empty it returns (RuneError, 0). Otherwise, if the encoding is invalid,
		it returns (RuneError, 1). Both are impossible results for correct,
		non-empty UTF-8.

		An encoding is invalid if it is incorrect UTF-8, encodes a rune that is
		out of range, or is not the shortest possible UTF-8 encoding for the
		value. No other validation is performed.
	 func DecodeRune(p []byte) (r rune, size int)
		DecodeRune unpacks the first UTF-8 encoding in p and returns the rune and
		its width in bytes. If p is empty it returns (RuneError, 0). Otherwise, if
		the encoding is invalid, it returns (RuneError, 1). Both are impossible
		results for correct, non-empty UTF-8.

		An encoding is invalid if it is incorrect UTF-8, encodes a rune that is
		out of range, or is not the shortest possible UTF-8 encoding for the
		value. No other validation is performed.
	 func DecodeRuneInString(s string) (r rune, size int)
		DecodeRuneInString is like DecodeRune but its input is a string. If s is
		empty it returns (RuneError, 0). Otherwise, if the encoding is invalid, it
		returns (RuneError, 1). Both are impossible results for correct, non-empty
		UTF-8.

		An encoding is invalid if it is incorrect UTF-8, encodes a rune that is
		out of range, or is not the shortest possible UTF-8 encoding for the
		value. No other validation is performed.
	 func EncodeRune(p []byte, r rune) int
		EncodeRune writes into p (which must be large enough) the UTF-8 encoding of the rune.
		It returns the number of bytes written.
	 func FullRune(p []byte) bool
		FullRune reports whether the bytes in p begin with a full UTF-8 encoding of a rune.
		An invalid encoding is considered a full Rune since it will convert as a width-1 error rune.
	 func FullRuneInString(s string) bool
		FullRuneInString is like FullRune but its input is a string.
	const MaxRune = 1114111 // Maximum valid Unicode code point.
		Numbers fundamental to the encoding.
	 func RuneCount(p []byte) int
		RuneCount returns the number of runes in p. Erroneous and short
		encodings are treated as single runes of width 1 byte.
	 func RuneCountInString(s string) (n int)
		RuneCountInString is like RuneCount but its input is a string.
	const RuneError = 65533 // the "error" Rune or "Unicode replacement character"
		Numbers fundamental to the encoding.
	 func RuneLen(r rune) int
		RuneLen returns the number of bytes required to encode the rune.
		It returns -1 if the rune is not a valid value to encode in UTF-8.
	const RuneSelf = 128 // characters below RuneSelf are represented as themselves in a single byte.
		Numbers fundamental to the encoding.
	 func RuneStart(b byte) bool
		RuneStart reports whether the byte could be the first byte of an encoded,
		possibly invalid rune. Second and subsequent bytes always have the top two
		bits set to 10.
	const UTFMax = 4 // maximum number of bytes of a UTF-8 encoded Unicode character.
		Numbers fundamental to the encoding.
	 func Valid(p []byte) bool
		Valid reports whether p consists entirely of valid UTF-8-encoded runes.
	 func ValidRune(r rune) bool
		ValidRune reports whether r can be legally encoded as UTF-8.
		Code points that are out of range or a surrogate half are illegal.
	 func ValidString(s string) bool
		ValidString reports whether s consists entirely of valid UTF-8-encoded runes.

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