vendor: update

12 files changed, 444 insertions, 309 deletions

diff --git a/vendor/github.com/BurntSushi/toml/README.md b/vendor/github.com/BurntSushi/toml/README.md
index 3651cfa96..639e6c399 100644
--- a/vendor/github.com/BurntSushi/toml/README.md
+++ b/vendor/github.com/BurntSushi/toml/README.md
@@ -9,7 +9,7 @@ See the [releases page](https://github.com/BurntSushi/toml/releases) for a
 changelog; this information is also in the git tag annotations (e.g. `git show
 v0.4.0`).
 
-This library requires Go 1.13 or newer; add it to your go.mod with:
+This library requires Go 1.18 or newer; add it to your go.mod with:
 
     % go get github.com/BurntSushi/toml@latest
 
diff --git a/vendor/github.com/BurntSushi/toml/decode.go b/vendor/github.com/BurntSushi/toml/decode.go
index 4d38f3bfc..c05a0b7e5 100644
--- a/vendor/github.com/BurntSushi/toml/decode.go
+++ b/vendor/github.com/BurntSushi/toml/decode.go
@@ -6,7 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
+	"io/fs"
 	"math"
 	"os"
 	"reflect"
@@ -18,13 +18,13 @@ import (
 // Unmarshaler is the interface implemented by objects that can unmarshal a
 // TOML description of themselves.
 type Unmarshaler interface {
-	UnmarshalTOML(interface{}) error
+	UnmarshalTOML(any) error
 }
 
 // Unmarshal decodes the contents of data in TOML format into a pointer v.
 //
 // See [Decoder] for a description of the decoding process.
-func Unmarshal(data []byte, v interface{}) error {
+func Unmarshal(data []byte, v any) error {
 	_, err := NewDecoder(bytes.NewReader(data)).Decode(v)
 	return err
 }
@@ -32,12 +32,12 @@ func Unmarshal(data []byte, v interface{}) error {
 // Decode the TOML data in to the pointer v.
 //
 // See [Decoder] for a description of the decoding process.
-func Decode(data string, v interface{}) (MetaData, error) {
+func Decode(data string, v any) (MetaData, error) {
 	return NewDecoder(strings.NewReader(data)).Decode(v)
 }
 
 // DecodeFile reads the contents of a file and decodes it with [Decode].
-func DecodeFile(path string, v interface{}) (MetaData, error) {
+func DecodeFile(path string, v any) (MetaData, error) {
 	fp, err := os.Open(path)
 	if err != nil {
 		return MetaData{}, err
@@ -46,6 +46,17 @@ func DecodeFile(path string, v interface{}) (MetaData, error) {
 	return NewDecoder(fp).Decode(v)
 }
 
+// DecodeFS reads the contents of a file from [fs.FS] and decodes it with
+// [Decode].
+func DecodeFS(fsys fs.FS, path string, v any) (MetaData, error) {
+	fp, err := fsys.Open(path)
+	if err != nil {
+		return MetaData{}, err
+	}
+	defer fp.Close()
+	return NewDecoder(fp).Decode(v)
+}
+
 // Primitive is a TOML value that hasn't been decoded into a Go value.
 //
 // This type can be used for any value, which will cause decoding to be delayed.
@@ -58,7 +69,7 @@ func DecodeFile(path string, v interface{}) (MetaData, error) {
 // overhead of reflection. They can be useful when you don't know the exact type
 // of TOML data until runtime.
 type Primitive struct {
-	undecoded interface{}
+	undecoded any
 	context   Key
 }
 
@@ -122,7 +133,7 @@ var (
 )
 
 // Decode TOML data in to the pointer `v`.
-func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
+func (dec *Decoder) Decode(v any) (MetaData, error) {
 	rv := reflect.ValueOf(v)
 	if rv.Kind() != reflect.Ptr {
 		s := "%q"
@@ -136,8 +147,8 @@ func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
 		return MetaData{}, fmt.Errorf("toml: cannot decode to nil value of %q", reflect.TypeOf(v))
 	}
 
-	// Check if this is a supported type: struct, map, interface{}, or something
-	// that implements UnmarshalTOML or UnmarshalText.
+	// Check if this is a supported type: struct, map, any, or something that
+	// implements UnmarshalTOML or UnmarshalText.
 	rv = indirect(rv)
 	rt := rv.Type()
 	if rv.Kind() != reflect.Struct && rv.Kind() != reflect.Map &&
@@ -148,7 +159,7 @@ func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
 
 	// TODO: parser should read from io.Reader? Or at the very least, make it
 	// read from []byte rather than string
-	data, err := ioutil.ReadAll(dec.r)
+	data, err := io.ReadAll(dec.r)
 	if err != nil {
 		return MetaData{}, err
 	}
@@ -179,7 +190,7 @@ func (dec *Decoder) Decode(v interface{}) (MetaData, error) {
 // will only reflect keys that were decoded. Namely, any keys hidden behind a
 // Primitive will be considered undecoded. Executing this method will update the
 // undecoded keys in the meta data. (See the example.)
-func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
+func (md *MetaData) PrimitiveDecode(primValue Primitive, v any) error {
 	md.context = primValue.context
 	defer func() { md.context = nil }()
 	return md.unify(primValue.undecoded, rvalue(v))
@@ -190,7 +201,7 @@ func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
 //
 // Any type mismatch produces an error. Finding a type that we don't know
 // how to handle produces an unsupported type error.
-func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unify(data any, rv reflect.Value) error {
 	// Special case. Look for a `Primitive` value.
 	// TODO: #76 would make this superfluous after implemented.
 	if rv.Type() == primitiveType {
@@ -207,7 +218,11 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
 
 	rvi := rv.Interface()
 	if v, ok := rvi.(Unmarshaler); ok {
-		return v.UnmarshalTOML(data)
+		err := v.UnmarshalTOML(data)
+		if err != nil {
+			return md.parseErr(err)
+		}
+		return nil
 	}
 	if v, ok := rvi.(encoding.TextUnmarshaler); ok {
 		return md.unifyText(data, v)
@@ -227,14 +242,6 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
 		return md.unifyInt(data, rv)
 	}
 	switch k {
-	case reflect.Ptr:
-		elem := reflect.New(rv.Type().Elem())
-		err := md.unify(data, reflect.Indirect(elem))
-		if err != nil {
-			return err
-		}
-		rv.Set(elem)
-		return nil
 	case reflect.Struct:
 		return md.unifyStruct(data, rv)
 	case reflect.Map:
@@ -258,14 +265,13 @@ func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
 	return md.e("unsupported type %s", rv.Kind())
 }
 
-func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
-	tmap, ok := mapping.(map[string]interface{})
+func (md *MetaData) unifyStruct(mapping any, rv reflect.Value) error {
+	tmap, ok := mapping.(map[string]any)
 	if !ok {
 		if mapping == nil {
 			return nil
 		}
-		return md.e("type mismatch for %s: expected table but found %T",
-			rv.Type().String(), mapping)
+		return md.e("type mismatch for %s: expected table but found %s", rv.Type().String(), fmtType(mapping))
 	}
 
 	for key, datum := range tmap {
@@ -304,14 +310,14 @@ func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
 	return nil
 }
 
-func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyMap(mapping any, rv reflect.Value) error {
 	keyType := rv.Type().Key().Kind()
 	if keyType != reflect.String && keyType != reflect.Interface {
 		return fmt.Errorf("toml: cannot decode to a map with non-string key type (%s in %q)",
 			keyType, rv.Type())
 	}
 
-	tmap, ok := mapping.(map[string]interface{})
+	tmap, ok := mapping.(map[string]any)
 	if !ok {
 		if tmap == nil {
 			return nil
@@ -347,7 +353,7 @@ func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
 	return nil
 }
 
-func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyArray(data any, rv reflect.Value) error {
 	datav := reflect.ValueOf(data)
 	if datav.Kind() != reflect.Slice {
 		if !datav.IsValid() {
@@ -361,7 +367,7 @@ func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
 	return md.unifySliceArray(datav, rv)
 }
 
-func (md *MetaData) unifySlice(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifySlice(data any, rv reflect.Value) error {
 	datav := reflect.ValueOf(data)
 	if datav.Kind() != reflect.Slice {
 		if !datav.IsValid() {
@@ -388,7 +394,7 @@ func (md *MetaData) unifySliceArray(data, rv reflect.Value) error {
 	return nil
 }
 
-func (md *MetaData) unifyString(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyString(data any, rv reflect.Value) error {
 	_, ok := rv.Interface().(json.Number)
 	if ok {
 		if i, ok := data.(int64); ok {
@@ -408,7 +414,7 @@ func (md *MetaData) unifyString(data interface{}, rv reflect.Value) error {
 	return md.badtype("string", data)
 }
 
-func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyFloat64(data any, rv reflect.Value) error {
 	rvk := rv.Kind()
 
 	if num, ok := data.(float64); ok {
@@ -429,7 +435,7 @@ func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
 	if num, ok := data.(int64); ok {
 		if (rvk == reflect.Float32 && (num < -maxSafeFloat32Int || num > maxSafeFloat32Int)) ||
 			(rvk == reflect.Float64 && (num < -maxSafeFloat64Int || num > maxSafeFloat64Int)) {
-			return md.parseErr(errParseRange{i: num, size: rvk.String()})
+			return md.parseErr(errUnsafeFloat{i: num, size: rvk.String()})
 		}
 		rv.SetFloat(float64(num))
 		return nil
@@ -438,7 +444,7 @@ func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
 	return md.badtype("float", data)
 }
 
-func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyInt(data any, rv reflect.Value) error {
 	_, ok := rv.Interface().(time.Duration)
 	if ok {
 		// Parse as string duration, and fall back to regular integer parsing
@@ -481,7 +487,7 @@ func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
 	return nil
 }
 
-func (md *MetaData) unifyBool(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyBool(data any, rv reflect.Value) error {
 	if b, ok := data.(bool); ok {
 		rv.SetBool(b)
 		return nil
@@ -489,12 +495,12 @@ func (md *MetaData) unifyBool(data interface{}, rv reflect.Value) error {
 	return md.badtype("boolean", data)
 }
 
-func (md *MetaData) unifyAnything(data interface{}, rv reflect.Value) error {
+func (md *MetaData) unifyAnything(data any, rv reflect.Value) error {
 	rv.Set(reflect.ValueOf(data))
 	return nil
 }
 
-func (md *MetaData) unifyText(data interface{}, v encoding.TextUnmarshaler) error {
+func (md *MetaData) unifyText(data any, v encoding.TextUnmarshaler) error {
 	var s string
 	switch sdata := data.(type) {
 	case Marshaler:
@@ -523,27 +529,29 @@ func (md *MetaData) unifyText(data interface{}, v encoding.TextUnmarshaler) erro
 		return md.badtype("primitive (string-like)", data)
 	}
 	if err := v.UnmarshalText([]byte(s)); err != nil {
-		return err
+		return md.parseErr(err)
 	}
 	return nil
 }
 
-func (md *MetaData) badtype(dst string, data interface{}) error {
-	return md.e("incompatible types: TOML value has type %T; destination has type %s", data, dst)
+func (md *MetaData) badtype(dst string, data any) error {
+	return md.e("incompatible types: TOML value has type %s; destination has type %s", fmtType(data), dst)
 }
 
 func (md *MetaData) parseErr(err error) error {
 	k := md.context.String()
+	d := string(md.data)
 	return ParseError{
+		Message:  err.Error(),
+		err:      err,
 		LastKey:  k,
-		Position: md.keyInfo[k].pos,
+		Position: md.keyInfo[k].pos.withCol(d),
 		Line:     md.keyInfo[k].pos.Line,
-		err:      err,
-		input:    string(md.data),
+		input:    d,
 	}
 }
 
-func (md *MetaData) e(format string, args ...interface{}) error {
+func (md *MetaData) e(format string, args ...any) error {
 	f := "toml: "
 	if len(md.context) > 0 {
 		f = fmt.Sprintf("toml: (last key %q): ", md.context)
@@ -556,7 +564,7 @@ func (md *MetaData) e(format string, args ...interface{}) error {
 }
 
 // rvalue returns a reflect.Value of `v`. All pointers are resolved.
-func rvalue(v interface{}) reflect.Value {
+func rvalue(v any) reflect.Value {
 	return indirect(reflect.ValueOf(v))
 }
 
@@ -600,3 +608,8 @@ func isUnifiable(rv reflect.Value) bool {
 	}
 	return false
 }
+
+// fmt %T with "interface {}" replaced with "any", which is far more readable.
+func fmtType(t any) string {
+	return strings.ReplaceAll(fmt.Sprintf("%T", t), "interface {}", "any")
+}
diff --git a/vendor/github.com/BurntSushi/toml/decode_go116.go b/vendor/github.com/BurntSushi/toml/decode_go116.go
deleted file mode 100644
index 086d0b686..000000000
--- a/vendor/github.com/BurntSushi/toml/decode_go116.go
+++ /dev/null
@@ -1,19 +0,0 @@
-//go:build go1.16
-// +build go1.16
-
-package toml
-
-import (
-	"io/fs"
-)
-
-// DecodeFS reads the contents of a file from [fs.FS] and decodes it with
-// [Decode].
-func DecodeFS(fsys fs.FS, path string, v interface{}) (MetaData, error) {
-	fp, err := fsys.Open(path)
-	if err != nil {
-		return MetaData{}, err
-	}
-	defer fp.Close()
-	return NewDecoder(fp).Decode(v)
-}
diff --git a/vendor/github.com/BurntSushi/toml/deprecated.go b/vendor/github.com/BurntSushi/toml/deprecated.go
index b9e309717..155709a80 100644
--- a/vendor/github.com/BurntSushi/toml/deprecated.go
+++ b/vendor/github.com/BurntSushi/toml/deprecated.go
@@ -15,15 +15,15 @@ type TextMarshaler encoding.TextMarshaler
 // Deprecated: use encoding.TextUnmarshaler
 type TextUnmarshaler encoding.TextUnmarshaler
 
+// DecodeReader is an alias for NewDecoder(r).Decode(v).
+//
+// Deprecated: use NewDecoder(reader).Decode(&value).
+func DecodeReader(r io.Reader, v any) (MetaData, error) { return NewDecoder(r).Decode(v) }
+
 // PrimitiveDecode is an alias for MetaData.PrimitiveDecode().
 //
 // Deprecated: use MetaData.PrimitiveDecode.
-func PrimitiveDecode(primValue Primitive, v interface{}) error {
+func PrimitiveDecode(primValue Primitive, v any) error {
 	md := MetaData{decoded: make(map[string]struct{})}
 	return md.unify(primValue.undecoded, rvalue(v))
 }
-
-// DecodeReader is an alias for NewDecoder(r).Decode(v).
-//
-// Deprecated: use NewDecoder(reader).Decode(&value).
-func DecodeReader(r io.Reader, v interface{}) (MetaData, error) { return NewDecoder(r).Decode(v) }
diff --git a/vendor/github.com/BurntSushi/toml/doc.go b/vendor/github.com/BurntSushi/toml/doc.go
index 81a7c0fe9..82c90a905 100644
--- a/vendor/github.com/BurntSushi/toml/doc.go
+++ b/vendor/github.com/BurntSushi/toml/doc.go
@@ -2,9 +2,6 @@
 //
 // This package supports TOML v1.0.0, as specified at https://toml.io
 //
-// There is also support for delaying decoding with the Primitive type, and
-// querying the set of keys in a TOML document with the MetaData type.
-//
 // The github.com/BurntSushi/toml/cmd/tomlv package implements a TOML validator,
 // and can be used to verify if TOML document is valid. It can also be used to
 // print the type of each key.
diff --git a/vendor/github.com/BurntSushi/toml/encode.go b/vendor/github.com/BurntSushi/toml/encode.go
index 9cd25d757..73366c0d9 100644
--- a/vendor/github.com/BurntSushi/toml/encode.go
+++ b/vendor/github.com/BurntSushi/toml/encode.go
@@ -2,6 +2,7 @@ package toml
 
 import (
 	"bufio"
+	"bytes"
 	"encoding"
 	"encoding/json"
 	"errors"
@@ -76,6 +77,17 @@ type Marshaler interface {
 	MarshalTOML() ([]byte, error)
 }
 
+// Marshal returns a TOML representation of the Go value.
+//
+// See [Encoder] for a description of the encoding process.
+func Marshal(v any) ([]byte, error) {
+	buff := new(bytes.Buffer)
+	if err := NewEncoder(buff).Encode(v); err != nil {
+		return nil, err
+	}
+	return buff.Bytes(), nil
+}
+
 // Encoder encodes a Go to a TOML document.
 //
 // The mapping between Go values and TOML values should be precisely the same as
@@ -115,26 +127,21 @@ type Marshaler interface {
 // NOTE: only exported keys are encoded due to the use of reflection. Unexported
 // keys are silently discarded.
 type Encoder struct {
-	// String to use for a single indentation level; default is two spaces.
-	Indent string
-
+	Indent     string // string for a single indentation level; default is two spaces.
+	hasWritten bool   // written any output to w yet?
 	w          *bufio.Writer
-	hasWritten bool // written any output to w yet?
 }
 
 // NewEncoder create a new Encoder.
 func NewEncoder(w io.Writer) *Encoder {
-	return &Encoder{
-		w:      bufio.NewWriter(w),
-		Indent: "  ",
-	}
+	return &Encoder{w: bufio.NewWriter(w), Indent: "  "}
 }
 
 // Encode writes a TOML representation of the Go value to the [Encoder]'s writer.
 //
 // An error is returned if the value given cannot be encoded to a valid TOML
 // document.
-func (enc *Encoder) Encode(v interface{}) error {
+func (enc *Encoder) Encode(v any) error {
 	rv := eindirect(reflect.ValueOf(v))
 	err := enc.safeEncode(Key([]string{}), rv)
 	if err != nil {
@@ -280,18 +287,30 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 	case reflect.Float32:
 		f := rv.Float()
 		if math.IsNaN(f) {
+			if math.Signbit(f) {
+				enc.wf("-")
+			}
 			enc.wf("nan")
 		} else if math.IsInf(f, 0) {
-			enc.wf("%cinf", map[bool]byte{true: '-', false: '+'}[math.Signbit(f)])
+			if math.Signbit(f) {
+				enc.wf("-")
+			}
+			enc.wf("inf")
 		} else {
 			enc.wf(floatAddDecimal(strconv.FormatFloat(f, 'f', -1, 32)))
 		}
 	case reflect.Float64:
 		f := rv.Float()
 		if math.IsNaN(f) {
+			if math.Signbit(f) {
+				enc.wf("-")
+			}
 			enc.wf("nan")
 		} else if math.IsInf(f, 0) {
-			enc.wf("%cinf", map[bool]byte{true: '-', false: '+'}[math.Signbit(f)])
+			if math.Signbit(f) {
+				enc.wf("-")
+			}
+			enc.wf("inf")
 		} else {
 			enc.wf(floatAddDecimal(strconv.FormatFloat(f, 'f', -1, 64)))
 		}
@@ -304,7 +323,7 @@ func (enc *Encoder) eElement(rv reflect.Value) {
 	case reflect.Interface:
 		enc.eElement(rv.Elem())
 	default:
-		encPanic(fmt.Errorf("unexpected type: %T", rv.Interface()))
+		encPanic(fmt.Errorf("unexpected type: %s", fmtType(rv.Interface())))
 	}
 }
 
@@ -712,7 +731,7 @@ func (enc *Encoder) writeKeyValue(key Key, val reflect.Value, inline bool) {
 	}
 }
 
-func (enc *Encoder) wf(format string, v ...interface{}) {
+func (enc *Encoder) wf(format string, v ...any) {
 	_, err := fmt.Fprintf(enc.w, format, v...)
 	if err != nil {
 		encPanic(err)
diff --git a/vendor/github.com/BurntSushi/toml/error.go b/vendor/github.com/BurntSushi/toml/error.go
index efd68865b..1dd523211 100644
--- a/vendor/github.com/BurntSushi/toml/error.go
+++ b/vendor/github.com/BurntSushi/toml/error.go
@@ -67,21 +67,36 @@ type ParseError struct {
 // Position of an error.
 type Position struct {
 	Line  int // Line number, starting at 1.
+	Col   int // Error column, starting at 1.
 	Start int // Start of error, as byte offset starting at 0.
-	Len   int // Lenght in bytes.
+	Len   int // Lenght of the error in bytes.
 }
 
-func (pe ParseError) Error() string {
-	msg := pe.Message
-	if msg == "" { // Error from errorf()
-		msg = pe.err.Error()
+func (p Position) withCol(tomlFile string) Position {
+	var (
+		pos   int
+		lines = strings.Split(tomlFile, "\n")
+	)
+	for i := range lines {
+		ll := len(lines[i]) + 1 // +1 for the removed newline
+		if pos+ll >= p.Start {
+			p.Col = p.Start - pos + 1
+			if p.Col < 1 { // Should never happen, but just in case.
+				p.Col = 1
+			}
+			break
+		}
+		pos += ll
 	}
+	return p
+}
 
+func (pe ParseError) Error() string {
 	if pe.LastKey == "" {
-		return fmt.Sprintf("toml: line %d: %s", pe.Position.Line, msg)
+		return fmt.Sprintf("toml: line %d: %s", pe.Position.Line, pe.Message)
 	}
 	return fmt.Sprintf("toml: line %d (last key %q): %s",
-		pe.Position.Line, pe.LastKey, msg)
+		pe.Position.Line, pe.LastKey, pe.Message)
 }
 
 // ErrorWithPosition returns the error with detailed location context.
@@ -92,35 +107,37 @@ func (pe ParseError) ErrorWithPosition() string {
 		return pe.Error()
 	}
 
+	// TODO: don't show control characters as literals? This may not show up
+	// well everywhere.
+
 	var (
 		lines = strings.Split(pe.input, "\n")
-		col   = pe.column(lines)
 		b     = new(strings.Builder)
 	)
-
-	msg := pe.Message
-	if msg == "" {
-		msg = pe.err.Error()
-	}
-
-	// TODO: don't show control characters as literals? This may not show up
-	// well everywhere.
-
 	if pe.Position.Len == 1 {
 		fmt.Fprintf(b, "toml: error: %s\n\nAt line %d, column %d:\n\n",
-			msg, pe.Position.Line, col+1)
+			pe.Message, pe.Position.Line, pe.Position.Col)
 	} else {
 		fmt.Fprintf(b, "toml: error: %s\n\nAt line %d, column %d-%d:\n\n",
-			msg, pe.Position.Line, col, col+pe.Position.Len)
+			pe.Message, pe.Position.Line, pe.Position.Col, pe.Position.Col+pe.Position.Len-1)
 	}
 	if pe.Position.Line > 2 {
-		fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line-2, lines[pe.Position.Line-3])
+		fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line-2, expandTab(lines[pe.Position.Line-3]))
 	}
 	if pe.Position.Line > 1 {
-		fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line-1, lines[pe.Position.Line-2])
+		fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line-1, expandTab(lines[pe.Position.Line-2]))
 	}
-	fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line, lines[pe.Position.Line-1])
-	fmt.Fprintf(b, "% 10s%s%s\n", "", strings.Repeat(" ", col), strings.Repeat("^", pe.Position.Len))
+
+	/// Expand tabs, so that the ^^^s are at the correct position, but leave
+	/// "column 10-13" intact. Adjusting this to the visual column would be
+	/// better, but we don't know the tabsize of the user in their editor, which
+	/// can be 8, 4, 2, or something else. We can't know. So leaving it as the
+	/// character index is probably the "most correct".
+	expanded := expandTab(lines[pe.Position.Line-1])
+	diff := len(expanded) - len(lines[pe.Position.Line-1])
+
+	fmt.Fprintf(b, "% 7d | %s\n", pe.Position.Line, expanded)
+	fmt.Fprintf(b, "% 10s%s%s\n", "", strings.Repeat(" ", pe.Position.Col-1+diff), strings.Repeat("^", pe.Position.Len))
 	return b.String()
 }
 
@@ -142,34 +159,47 @@ func (pe ParseError) ErrorWithUsage() string {
 	return m
 }
 
-func (pe ParseError) column(lines []string) int {
-	var pos, col int
-	for i := range lines {
-		ll := len(lines[i]) + 1 // +1 for the removed newline
-		if pos+ll >= pe.Position.Start {
-			col = pe.Position.Start - pos
-			if col < 0 { // Should never happen, but just in case.
-				col = 0
+func expandTab(s string) string {
+	var (
+		b    strings.Builder
+		l    int
+		fill = func(n int) string {
+			b := make([]byte, n)
+			for i := range b {
+				b[i] = ' '
 			}
-			break
+			return string(b)
+		}
+	)
+	b.Grow(len(s))
+	for _, r := range s {
+		switch r {
+		case '\t':
+			tw := 8 - l%8
+			b.WriteString(fill(tw))
+			l += tw
+		default:
+			b.WriteRune(r)
+			l += 1
 		}
-		pos += ll
 	}
-
-	return col
+	return b.String()
 }
 
 type (
 	errLexControl       struct{ r rune }
 	errLexEscape        struct{ r rune }
 	errLexUTF8          struct{ b byte }
-	errLexInvalidNum    struct{ v string }
-	errLexInvalidDate   struct{ v string }
+	errParseDate        struct{ v string }
 	errLexInlineTableNL struct{}
 	errLexStringNL      struct{}
 	errParseRange       struct {
-		i    interface{} // int or float
-		size string      // "int64", "uint16", etc.
+		i    any    // int or float
+		size string // "int64", "uint16", etc.
+	}
+	errUnsafeFloat struct {
+		i    interface{} // float32 or float64
+		size string      // "float32" or "float64"
 	}
 	errParseDuration struct{ d string }
 )
@@ -183,18 +213,20 @@ func (e errLexEscape) Error() string        { return fmt.Sprintf(`invalid escape
 func (e errLexEscape) Usage() string        { return usageEscape }
 func (e errLexUTF8) Error() string          { return fmt.Sprintf("invalid UTF-8 byte: 0x%02x", e.b) }
 func (e errLexUTF8) Usage() string          { return "" }
-func (e errLexInvalidNum) Error() string    { return fmt.Sprintf("invalid number: %q", e.v) }
-func (e errLexInvalidNum) Usage() string    { return "" }
-func (e errLexInvalidDate) Error() string   { return fmt.Sprintf("invalid date: %q", e.v) }
-func (e errLexInvalidDate) Usage() string   { return "" }
+func (e errParseDate) Error() string        { return fmt.Sprintf("invalid datetime: %q", e.v) }
+func (e errParseDate) Usage() string        { return usageDate }
 func (e errLexInlineTableNL) Error() string { return "newlines not allowed within inline tables" }
 func (e errLexInlineTableNL) Usage() string { return usageInlineNewline }
 func (e errLexStringNL) Error() string      { return "strings cannot contain newlines" }
 func (e errLexStringNL) Usage() string      { return usageStringNewline }
 func (e errParseRange) Error() string       { return fmt.Sprintf("%v is out of range for %s", e.i, e.size) }
 func (e errParseRange) Usage() string       { return usageIntOverflow }
-func (e errParseDuration) Error() string    { return fmt.Sprintf("invalid duration: %q", e.d) }
-func (e errParseDuration) Usage() string    { return usageDuration }
+func (e errUnsafeFloat) Error() string {
+	return fmt.Sprintf("%v is out of the safe %s range", e.i, e.size)
+}
+func (e errUnsafeFloat) Usage() string   { return usageUnsafeFloat }
+func (e errParseDuration) Error() string { return fmt.Sprintf("invalid duration: %q", e.d) }
+func (e errParseDuration) Usage() string { return usageDuration }
 
 const usageEscape = `
 A '\' inside a "-delimited string is interpreted as an escape character.
@@ -251,19 +283,35 @@ bug in the program that uses too small of an integer.
 The maximum and minimum values are:
 
     size   │ lowest         │ highest
-    ───────┼────────────────┼──────────
+    ───────┼────────────────┼──────────────
     int8   │ -128           │ 127
     int16  │ -32,768        │ 32,767
     int32  │ -2,147,483,648 │ 2,147,483,647
     int64  │ -9.2 × 10¹⁷    │ 9.2 × 10¹⁷
     uint8  │ 0              │ 255
-    uint16 │ 0              │ 65535
-    uint32 │ 0              │ 4294967295
+    uint16 │ 0              │ 65,535
+    uint32 │ 0              │ 4,294,967,295
     uint64 │ 0              │ 1.8 × 10¹⁸
 
 int refers to int32 on 32-bit systems and int64 on 64-bit systems.
 `
 
+const usageUnsafeFloat = `
+This number is outside of the "safe" range for floating point numbers; whole
+(non-fractional) numbers outside the below range can not always be represented
+accurately in a float, leading to some loss of accuracy.
+
+Explicitly mark a number as a fractional unit by adding ".0", which will incur
+some loss of accuracy; for example:
+
+	f = 2_000_000_000.0
+
+Accuracy ranges:
+
+	float32 =            16,777,215
+	float64 = 9,007,199,254,740,991
+`
+
 const usageDuration = `
 A duration must be as "number<unit>", without any spaces. Valid units are:
 
@@ -277,3 +325,23 @@ A duration must be as "number<unit>", without any spaces. Valid units are:
 You can combine multiple units; for example "5m10s" for 5 minutes and 10
 seconds.
 `
+
+const usageDate = `
+A TOML datetime must be in one of the following formats:
+
+    2006-01-02T15:04:05Z07:00   Date and time, with timezone.
+    2006-01-02T15:04:05         Date and time, but without timezone.
+    2006-01-02                  Date without a time or timezone.
+    15:04:05                    Just a time, without any timezone.
+
+Seconds may optionally have a fraction, up to nanosecond precision:
+
+    15:04:05.123
+    15:04:05.856018510
+`
+
+// TOML 1.1:
+// The seconds part in times is optional, and may be omitted:
+//     2006-01-02T15:04Z07:00
+//     2006-01-02T15:04
+//     15:04
diff --git a/vendor/github.com/BurntSushi/toml/lex.go b/vendor/github.com/BurntSushi/toml/lex.go
index 3545a6ad6..6878d9d69 100644
--- a/vendor/github.com/BurntSushi/toml/lex.go
+++ b/vendor/github.com/BurntSushi/toml/lex.go
@@ -17,6 +17,7 @@ const (
 	itemEOF
 	itemText
 	itemString
+	itemStringEsc
 	itemRawString
 	itemMultilineString
 	itemRawMultilineString
@@ -53,6 +54,7 @@ type lexer struct {
 	state    stateFn
 	items    chan item
 	tomlNext bool
+	esc      bool
 
 	// Allow for backing up up to 4 runes. This is necessary because TOML
 	// contains 3-rune tokens (""" and ''').
@@ -164,7 +166,7 @@ func (lx *lexer) next() (r rune) {
 	}
 
 	r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
-	if r == utf8.RuneError {
+	if r == utf8.RuneError && w == 1 {
 		lx.error(errLexUTF8{lx.input[lx.pos]})
 		return utf8.RuneError
 	}
@@ -270,7 +272,7 @@ func (lx *lexer) errorPos(start, length int, err error) stateFn {
 }
 
 // errorf is like error, and creates a new error.
-func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
+func (lx *lexer) errorf(format string, values ...any) stateFn {
 	if lx.atEOF {
 		pos := lx.getPos()
 		pos.Line--
@@ -333,9 +335,7 @@ func lexTopEnd(lx *lexer) stateFn {
 		lx.emit(itemEOF)
 		return nil
 	}
-	return lx.errorf(
-		"expected a top-level item to end with a newline, comment, or EOF, but got %q instead",
-		r)
+	return lx.errorf("expected a top-level item to end with a newline, comment, or EOF, but got %q instead", r)
 }
 
 // lexTable lexes the beginning of a table. Namely, it makes sure that
@@ -492,6 +492,9 @@ func lexKeyEnd(lx *lexer) stateFn {
 		lx.emit(itemKeyEnd)
 		return lexSkip(lx, lexValue)
 	default:
+		if r == '\n' {
+			return lx.errorPrevLine(fmt.Errorf("expected '.' or '=', but got %q instead", r))
+		}
 		return lx.errorf("expected '.' or '=', but got %q instead", r)
 	}
 }
@@ -560,6 +563,9 @@ func lexValue(lx *lexer) stateFn {
 	if r == eof {
 		return lx.errorf("unexpected EOF; expected value")
 	}
+	if r == '\n' {
+		return lx.errorPrevLine(fmt.Errorf("expected value but found %q instead", r))
+	}
 	return lx.errorf("expected value but found %q instead", r)
 }
 
@@ -698,7 +704,12 @@ func lexString(lx *lexer) stateFn {
 		return lexStringEscape
 	case r == '"':
 		lx.backup()
-		lx.emit(itemString)
+		if lx.esc {
+			lx.esc = false
+			lx.emit(itemStringEsc)
+		} else {
+			lx.emit(itemString)
+		}
 		lx.next()
 		lx.ignore()
 		return lx.pop()
@@ -748,6 +759,7 @@ func lexMultilineString(lx *lexer) stateFn {
 				lx.backup() /// backup: don't include the """ in the item.
 				lx.backup()
 				lx.backup()
+				lx.esc = false
 				lx.emit(itemMultilineString)
 				lx.next() /// Read over ''' again and discard it.
 				lx.next()
@@ -837,6 +849,7 @@ func lexMultilineStringEscape(lx *lexer) stateFn {
 }
 
 func lexStringEscape(lx *lexer) stateFn {
+	lx.esc = true
 	r := lx.next()
 	switch r {
 	case 'e':
@@ -879,10 +892,8 @@ func lexHexEscape(lx *lexer) stateFn {
 	var r rune
 	for i := 0; i < 2; i++ {
 		r = lx.next()
-		if !isHexadecimal(r) {
-			return lx.errorf(
-				`expected two hexadecimal digits after '\x', but got %q instead`,
-				lx.current())
+		if !isHex(r) {
+			return lx.errorf(`expected two hexadecimal digits after '\x', but got %q instead`, lx.current())
 		}
 	}
 	return lx.pop()
@@ -892,10 +903,8 @@ func lexShortUnicodeEscape(lx *lexer) stateFn {
 	var r rune
 	for i := 0; i < 4; i++ {
 		r = lx.next()
-		if !isHexadecimal(r) {
-			return lx.errorf(
-				`expected four hexadecimal digits after '\u', but got %q instead`,
-				lx.current())
+		if !isHex(r) {
+			return lx.errorf(`expected four hexadecimal digits after '\u', but got %q instead`, lx.current())
 		}
 	}
 	return lx.pop()
@@ -905,10 +914,8 @@ func lexLongUnicodeEscape(lx *lexer) stateFn {
 	var r rune
 	for i := 0; i < 8; i++ {
 		r = lx.next()
-		if !isHexadecimal(r) {
-			return lx.errorf(
-				`expected eight hexadecimal digits after '\U', but got %q instead`,
-				lx.current())
+		if !isHex(r) {
+			return lx.errorf(`expected eight hexadecimal digits after '\U', but got %q instead`, lx.current())
 		}
 	}
 	return lx.pop()
@@ -975,7 +982,7 @@ func lexDatetime(lx *lexer) stateFn {
 // lexHexInteger consumes a hexadecimal integer after seeing the '0x' prefix.
 func lexHexInteger(lx *lexer) stateFn {
 	r := lx.next()
-	if isHexadecimal(r) {
+	if isHex(r) {
 		return lexHexInteger
 	}
 	switch r {
@@ -1109,7 +1116,7 @@ func lexBaseNumberOrDate(lx *lexer) stateFn {
 		return lexOctalInteger
 	case 'x':
 		r = lx.peek()
-		if !isHexadecimal(r) {
+		if !isHex(r) {
 			lx.errorf("not a hexidecimal number: '%s%c'", lx.current(), r)
 		}
 		return lexHexInteger
@@ -1207,7 +1214,7 @@ func (itype itemType) String() string {
 		return "EOF"
 	case itemText:
 		return "Text"
-	case itemString, itemRawString, itemMultilineString, itemRawMultilineString:
+	case itemString, itemStringEsc, itemRawString, itemMultilineString, itemRawMultilineString:
 		return "String"
 	case itemBool:
 		return "Bool"
@@ -1240,7 +1247,7 @@ func (itype itemType) String() string {
 }
 
 func (item item) String() string {
-	return fmt.Sprintf("(%s, %s)", item.typ.String(), item.val)
+	return fmt.Sprintf("(%s, %s)", item.typ, item.val)
 }
 
 func isWhitespace(r rune) bool { return r == '\t' || r == ' ' }
@@ -1256,10 +1263,7 @@ func isControl(r rune) bool { // Control characters except \t, \r, \n
 func isDigit(r rune) bool  { return r >= '0' && r <= '9' }
 func isBinary(r rune) bool { return r == '0' || r == '1' }
 func isOctal(r rune) bool  { return r >= '0' && r <= '7' }
-func isHexadecimal(r rune) bool {
-	return (r >= '0' && r <= '9') || (r >= 'a' && r <= 'f') || (r >= 'A' && r <= 'F')
-}
-
+func isHex(r rune) bool    { return (r >= '0' && r <= '9') || (r|0x20 >= 'a' && r|0x20 <= 'f') }
 func isBareKeyChar(r rune, tomlNext bool) bool {
 	if tomlNext {
 		return (r >= 'A' && r <= 'Z') ||
diff --git a/vendor/github.com/BurntSushi/toml/meta.go b/vendor/github.com/BurntSushi/toml/meta.go
index 2e78b24e9..e61453730 100644
--- a/vendor/github.com/BurntSushi/toml/meta.go
+++ b/vendor/github.com/BurntSushi/toml/meta.go
@@ -13,7 +13,7 @@ type MetaData struct {
 	context Key // Used only during decoding.
 
 	keyInfo map[string]keyInfo
-	mapping map[string]interface{}
+	mapping map[string]any
 	keys    []Key
 	decoded map[string]struct{}
 	data    []byte // Input file; for errors.
@@ -31,12 +31,12 @@ func (md *MetaData) IsDefined(key ...string) bool {
 	}
 
 	var (
-		hash      map[string]interface{}
+		hash      map[string]any
 		ok        bool
-		hashOrVal interface{} = md.mapping
+		hashOrVal any = md.mapping
 	)
 	for _, k := range key {
-		if hash, ok = hashOrVal.(map[string]interface{}); !ok {
+		if hash, ok = hashOrVal.(map[string]any); !ok {
 			return false
 		}
 		if hashOrVal, ok = hash[k]; !ok {
@@ -94,28 +94,55 @@ func (md *MetaData) Undecoded() []Key {
 type Key []string
 
 func (k Key) String() string {
-	ss := make([]string, len(k))
-	for i := range k {
-		ss[i] = k.maybeQuoted(i)
+	// This is called quite often, so it's a bit funky to make it faster.
+	var b strings.Builder
+	b.Grow(len(k) * 25)
+outer:
+	for i, kk := range k {
+		if i > 0 {
+			b.WriteByte('.')
+		}
+		if kk == "" {
+			b.WriteString(`""`)
+		} else {
+			for _, r := range kk {
+				// "Inline" isBareKeyChar
+				if !((r >= 'A' && r <= 'Z') || (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') || r == '_' || r == '-') {
+					b.WriteByte('"')
+					b.WriteString(dblQuotedReplacer.Replace(kk))
+					b.WriteByte('"')
+					continue outer
+				}
+			}
+			b.WriteString(kk)
+		}
 	}
-	return strings.Join(ss, ".")
+	return b.String()
 }
 
 func (k Key) maybeQuoted(i int) string {
 	if k[i] == "" {
 		return `""`
 	}
-	for _, c := range k[i] {
-		if !isBareKeyChar(c, false) {
-			return `"` + dblQuotedReplacer.Replace(k[i]) + `"`
+	for _, r := range k[i] {
+		if (r >= 'A' && r <= 'Z') || (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') || r == '_' || r == '-' {
+			continue
 		}
+		return `"` + dblQuotedReplacer.Replace(k[i]) + `"`
 	}
 	return k[i]
 }
 
+// Like append(), but only increase the cap by 1.
 func (k Key) add(piece string) Key {
+	if cap(k) > len(k) {
+		return append(k, piece)
+	}
 	newKey := make(Key, len(k)+1)
 	copy(newKey, k)
 	newKey[len(k)] = piece
 	return newKey
 }
+
+func (k Key) parent() Key  { return k[:len(k)-1] } // all except the last piece.
+func (k Key) last() string { return k[len(k)-1] }  // last piece of this key.
diff --git a/vendor/github.com/BurntSushi/toml/parse.go b/vendor/github.com/BurntSushi/toml/parse.go
index 9c1915369..3f2c090c8 100644
--- a/vendor/github.com/BurntSushi/toml/parse.go
+++ b/vendor/github.com/BurntSushi/toml/parse.go
@@ -2,6 +2,7 @@ package toml
 
 import (
 	"fmt"
+	"math"
 	"os"
 	"strconv"
 	"strings"
@@ -20,9 +21,9 @@ type parser struct {
 
 	ordered []Key // List of keys in the order that they appear in the TOML data.
 
-	keyInfo   map[string]keyInfo     // Map keyname → info about the TOML key.
-	mapping   map[string]interface{} // Map keyname → key value.
-	implicits map[string]struct{}    // Record implicit keys (e.g. "key.group.names").
+	keyInfo   map[string]keyInfo  // Map keyname → info about the TOML key.
+	mapping   map[string]any      // Map keyname → key value.
+	implicits map[string]struct{} // Record implicit keys (e.g. "key.group.names").
 }
 
 type keyInfo struct {
@@ -49,6 +50,7 @@ func parse(data string) (p *parser, err error) {
 	// it anyway.
 	if strings.HasPrefix(data, "\xff\xfe") || strings.HasPrefix(data, "\xfe\xff") { // UTF-16
 		data = data[2:]
+		//lint:ignore S1017 https://github.com/dominikh/go-tools/issues/1447
 	} else if strings.HasPrefix(data, "\xef\xbb\xbf") { // UTF-8
 		data = data[3:]
 	}
@@ -63,7 +65,7 @@ func parse(data string) (p *parser, err error) {
 	if i := strings.IndexRune(data[:ex], 0); i > -1 {
 		return nil, ParseError{
 			Message:  "files cannot contain NULL bytes; probably using UTF-16; TOML files must be UTF-8",
-			Position: Position{Line: 1, Start: i, Len: 1},
+			Position: Position{Line: 1, Col: 1, Start: i, Len: 1},
 			Line:     1,
 			input:    data,
 		}
@@ -71,7 +73,7 @@ func parse(data string) (p *parser, err error) {
 
 	p = &parser{
 		keyInfo:   make(map[string]keyInfo),
-		mapping:   make(map[string]interface{}),
+		mapping:   make(map[string]any),
 		lx:        lex(data, tomlNext),
 		ordered:   make([]Key, 0),
 		implicits: make(map[string]struct{}),
@@ -90,26 +92,27 @@ func parse(data string) (p *parser, err error) {
 
 func (p *parser) panicErr(it item, err error) {
 	panic(ParseError{
+		Message:  err.Error(),
 		err:      err,
-		Position: it.pos,
+		Position: it.pos.withCol(p.lx.input),
 		Line:     it.pos.Len,
 		LastKey:  p.current(),
 	})
 }
 
-func (p *parser) panicItemf(it item, format string, v ...interface{}) {
+func (p *parser) panicItemf(it item, format string, v ...any) {
 	panic(ParseError{
 		Message:  fmt.Sprintf(format, v...),
-		Position: it.pos,
+		Position: it.pos.withCol(p.lx.input),
 		Line:     it.pos.Len,
 		LastKey:  p.current(),
 	})
 }
 
-func (p *parser) panicf(format string, v ...interface{}) {
+func (p *parser) panicf(format string, v ...any) {
 	panic(ParseError{
 		Message:  fmt.Sprintf(format, v...),
-		Position: p.pos,
+		Position: p.pos.withCol(p.lx.input),
 		Line:     p.pos.Line,
 		LastKey:  p.current(),
 	})
@@ -121,10 +124,11 @@ func (p *parser) next() item {
 	if it.typ == itemError {
 		if it.err != nil {
 			panic(ParseError{
-				Position: it.pos,
+				Message:  it.err.Error(),
+				err:      it.err,
+				Position: it.pos.withCol(p.lx.input),
 				Line:     it.pos.Line,
 				LastKey:  p.current(),
-				err:      it.err,
 			})
 		}
 
@@ -139,7 +143,7 @@ func (p *parser) nextPos() item {
 	return it
 }
 
-func (p *parser) bug(format string, v ...interface{}) {
+func (p *parser) bug(format string, v ...any) {
 	panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
 }
 
@@ -194,11 +198,11 @@ func (p *parser) topLevel(item item) {
 		p.assertEqual(itemKeyEnd, k.typ)
 
 		/// The current key is the last part.
-		p.currentKey = key[len(key)-1]
+		p.currentKey = key.last()
 
 		/// All the other parts (if any) are the context; need to set each part
 		/// as implicit.
-		context := key[:len(key)-1]
+		context := key.parent()
 		for i := range context {
 			p.addImplicitContext(append(p.context, context[i:i+1]...))
 		}
@@ -207,7 +211,8 @@ func (p *parser) topLevel(item item) {
 		/// Set value.
 		vItem := p.next()
 		val, typ := p.value(vItem, false)
-		p.set(p.currentKey, val, typ, vItem.pos)
+		p.setValue(p.currentKey, val)
+		p.setType(p.currentKey, typ, vItem.pos)
 
 		/// Remove the context we added (preserving any context from [tbl] lines).
 		p.context = outerContext
@@ -222,7 +227,7 @@ func (p *parser) keyString(it item) string {
 	switch it.typ {
 	case itemText:
 		return it.val
-	case itemString, itemMultilineString,
+	case itemString, itemStringEsc, itemMultilineString,
 		itemRawString, itemRawMultilineString:
 		s, _ := p.value(it, false)
 		return s.(string)
@@ -239,9 +244,11 @@ var datetimeRepl = strings.NewReplacer(
 
 // value translates an expected value from the lexer into a Go value wrapped
 // as an empty interface.
-func (p *parser) value(it item, parentIsArray bool) (interface{}, tomlType) {
+func (p *parser) value(it item, parentIsArray bool) (any, tomlType) {
 	switch it.typ {
 	case itemString:
+		return it.val, p.typeOfPrimitive(it)
+	case itemStringEsc:
 		return p.replaceEscapes(it, it.val), p.typeOfPrimitive(it)
 	case itemMultilineString:
 		return p.replaceEscapes(it, p.stripEscapedNewlines(stripFirstNewline(it.val))), p.typeOfPrimitive(it)
@@ -274,7 +281,7 @@ func (p *parser) value(it item, parentIsArray bool) (interface{}, tomlType) {
 	panic("unreachable")
 }
 
-func (p *parser) valueInteger(it item) (interface{}, tomlType) {
+func (p *parser) valueInteger(it item) (any, tomlType) {
 	if !numUnderscoresOK(it.val) {
 		p.panicItemf(it, "Invalid integer %q: underscores must be surrounded by digits", it.val)
 	}
@@ -298,7 +305,7 @@ func (p *parser) valueInteger(it item) (interface{}, tomlType) {
 	return num, p.typeOfPrimitive(it)
 }
 
-func (p *parser) valueFloat(it item) (interface{}, tomlType) {
+func (p *parser) valueFloat(it item) (any, tomlType) {
 	parts := strings.FieldsFunc(it.val, func(r rune) bool {
 		switch r {
 		case '.', 'e', 'E':
@@ -322,7 +329,9 @@ func (p *parser) valueFloat(it item) (interface{}, tomlType) {
 		p.panicItemf(it, "Invalid float %q: '.' must be followed by one or more digits", it.val)
 	}
 	val := strings.Replace(it.val, "_", "", -1)
-	if val == "+nan" || val == "-nan" { // Go doesn't support this, but TOML spec does.
+	signbit := false
+	if val == "+nan" || val == "-nan" {
+		signbit = val == "-nan"
 		val = "nan"
 	}
 	num, err := strconv.ParseFloat(val, 64)
@@ -333,6 +342,9 @@ func (p *parser) valueFloat(it item) (interface{}, tomlType) {
 			p.panicItemf(it, "Invalid float value: %q", it.val)
 		}
 	}
+	if signbit {
+		num = math.Copysign(num, -1)
+	}
 	return num, p.typeOfPrimitive(it)
 }
 
@@ -352,7 +364,7 @@ var dtTypes = []struct {
 	{"15:04", internal.LocalTime, true},
 }
 
-func (p *parser) valueDatetime(it item) (interface{}, tomlType) {
+func (p *parser) valueDatetime(it item) (any, tomlType) {
 	it.val = datetimeRepl.Replace(it.val)
 	var (
 		t   time.Time
@@ -365,26 +377,44 @@ func (p *parser) valueDatetime(it item) (interface{}, tomlType) {
 		}
 		t, err = time.ParseInLocation(dt.fmt, it.val, dt.zone)
 		if err == nil {
+			if missingLeadingZero(it.val, dt.fmt) {
+				p.panicErr(it, errParseDate{it.val})
+			}
 			ok = true
 			break
 		}
 	}
 	if !ok {
-		p.panicItemf(it, "Invalid TOML Datetime: %q.", it.val)
+		p.panicErr(it, errParseDate{it.val})
 	}
 	return t, p.typeOfPrimitive(it)
 }
 
-func (p *parser) valueArray(it item) (interface{}, tomlType) {
+// Go's time.Parse() will accept numbers without a leading zero; there isn't any
+// way to require it. https://github.com/golang/go/issues/29911
+//
+// Depend on the fact that the separators (- and :) should always be at the same
+// location.
+func missingLeadingZero(d, l string) bool {
+	for i, c := range []byte(l) {
+		if c == '.' || c == 'Z' {
+			return false
+		}
+		if (c < '0' || c > '9') && d[i] != c {
+			return true
+		}
+	}
+	return false
+}
+
+func (p *parser) valueArray(it item) (any, tomlType) {
 	p.setType(p.currentKey, tomlArray, it.pos)
 
 	var (
-		types []tomlType
-
-		// Initialize to a non-nil empty slice. This makes it consistent with
-		// how S = [] decodes into a non-nil slice inside something like struct
-		// { S []string }. See #338
-		array = []interface{}{}
+		// Initialize to a non-nil slice to make it consistent with how S = []
+		// decodes into a non-nil slice inside something like struct { S
+		// []string }. See #338
+		array = make([]any, 0, 2)
 	)
 	for it = p.next(); it.typ != itemArrayEnd; it = p.next() {
 		if it.typ == itemCommentStart {
@@ -394,21 +424,20 @@ func (p *parser) valueArray(it item) (interface{}, tomlType) {
 
 		val, typ := p.value(it, true)
 		array = append(array, val)
-		types = append(types, typ)
 
-		// XXX: types isn't used here, we need it to record the accurate type
+		// XXX: type isn't used here, we need it to record the accurate type
 		// information.
 		//
 		// Not entirely sure how to best store this; could use "key[0]",
 		// "key[1]" notation, or maybe store it on the Array type?
-		_ = types
+		_ = typ
 	}
 	return array, tomlArray
 }
 
-func (p *parser) valueInlineTable(it item, parentIsArray bool) (interface{}, tomlType) {
+func (p *parser) valueInlineTable(it item, parentIsArray bool) (any, tomlType) {
 	var (
-		hash         = make(map[string]interface{})
+		topHash      = make(map[string]any)
 		outerContext = p.context
 		outerKey     = p.currentKey
 	)
@@ -436,11 +465,11 @@ func (p *parser) valueInlineTable(it item, parentIsArray bool) (interface{}, tom
 		p.assertEqual(itemKeyEnd, k.typ)
 
 		/// The current key is the last part.
-		p.currentKey = key[len(key)-1]
+		p.currentKey = key.last()
 
 		/// All the other parts (if any) are the context; need to set each part
 		/// as implicit.
-		context := key[:len(key)-1]
+		context := key.parent()
 		for i := range context {
 			p.addImplicitContext(append(p.context, context[i:i+1]...))
 		}
@@ -448,7 +477,21 @@ func (p *parser) valueInlineTable(it item, parentIsArray bool) (interface{}, tom
 
 		/// Set the value.
 		val, typ := p.value(p.next(), false)
-		p.set(p.currentKey, val, typ, it.pos)
+		p.setValue(p.currentKey, val)
+		p.setType(p.currentKey, typ, it.pos)
+
+		hash := topHash
+		for _, c := range context {
+			h, ok := hash[c]
+			if !ok {
+				h = make(map[string]any)
+				hash[c] = h
+			}
+			hash, ok = h.(map[string]any)
+			if !ok {
+				p.panicf("%q is not a table", p.context)
+			}
+		}
 		hash[p.currentKey] = val
 
 		/// Restore context.
@@ -456,7 +499,7 @@ func (p *parser) valueInlineTable(it item, parentIsArray bool) (interface{}, tom
 	}
 	p.context = outerContext
 	p.currentKey = outerKey
-	return hash, tomlHash
+	return topHash, tomlHash
 }
 
 // numHasLeadingZero checks if this number has leading zeroes, allowing for '0',
@@ -486,9 +529,9 @@ func numUnderscoresOK(s string) bool {
 			}
 		}
 
-		// isHexadecimal is a superset of all the permissable characters
-		// surrounding an underscore.
-		accept = isHexadecimal(r)
+		// isHexis a superset of all the permissable characters surrounding an
+		// underscore.
+		accept = isHex(r)
 	}
 	return accept
 }
@@ -511,21 +554,19 @@ func numPeriodsOK(s string) bool {
 // Establishing the context also makes sure that the key isn't a duplicate, and
 // will create implicit hashes automatically.
 func (p *parser) addContext(key Key, array bool) {
-	var ok bool
-
-	// Always start at the top level and drill down for our context.
+	/// Always start at the top level and drill down for our context.
 	hashContext := p.mapping
-	keyContext := make(Key, 0)
+	keyContext := make(Key, 0, len(key)-1)
 
-	// We only need implicit hashes for key[0:-1]
-	for _, k := range key[0 : len(key)-1] {
-		_, ok = hashContext[k]
+	/// We only need implicit hashes for the parents.
+	for _, k := range key.parent() {
+		_, ok := hashContext[k]
 		keyContext = append(keyContext, k)
 
 		// No key? Make an implicit hash and move on.
 		if !ok {
 			p.addImplicit(keyContext)
-			hashContext[k] = make(map[string]interface{})
+			hashContext[k] = make(map[string]any)
 		}
 
 		// If the hash context is actually an array of tables, then set
@@ -534,9 +575,9 @@ func (p *parser) addContext(key Key, array bool) {
 		// Otherwise, it better be a table, since this MUST be a key group (by
 		// virtue of it not being the last element in a key).
 		switch t := hashContext[k].(type) {
-		case []map[string]interface{}:
+		case []map[string]any:
 			hashContext = t[len(t)-1]
-		case map[string]interface{}:
+		case map[string]any:
 			hashContext = t
 		default:
 			p.panicf("Key '%s' was already created as a hash.", keyContext)
@@ -547,39 +588,33 @@ func (p *parser) addContext(key Key, array bool) {
 	if array {
 		// If this is the first element for this array, then allocate a new
 		// list of tables for it.
-		k := key[len(key)-1]
+		k := key.last()
 		if _, ok := hashContext[k]; !ok {
-			hashContext[k] = make([]map[string]interface{}, 0, 4)
+			hashContext[k] = make([]map[string]any, 0, 4)
 		}
 
 		// Add a new table. But make sure the key hasn't already been used
 		// for something else.
-		if hash, ok := hashContext[k].([]map[string]interface{}); ok {
-			hashContext[k] = append(hash, make(map[string]interface{}))
+		if hash, ok := hashContext[k].([]map[string]any); ok {
+			hashContext[k] = append(hash, make(map[string]any))
 		} else {
 			p.panicf("Key '%s' was already created and cannot be used as an array.", key)
 		}
 	} else {
-		p.setValue(key[len(key)-1], make(map[string]interface{}))
+		p.setValue(key.last(), make(map[string]any))
 	}
-	p.context = append(p.context, key[len(key)-1])
-}
-
-// set calls setValue and setType.
-func (p *parser) set(key string, val interface{}, typ tomlType, pos Position) {
-	p.setValue(key, val)
-	p.setType(key, typ, pos)
+	p.context = append(p.context, key.last())
 }
 
 // setValue sets the given key to the given value in the current context.
 // It will make sure that the key hasn't already been defined, account for
 // implicit key groups.
-func (p *parser) setValue(key string, value interface{}) {
+func (p *parser) setValue(key string, value any) {
 	var (
-		tmpHash    interface{}
+		tmpHash    any
 		ok         bool
 		hash       = p.mapping
-		keyContext Key
+		keyContext = make(Key, 0, len(p.context)+1)
 	)
 	for _, k := range p.context {
 		keyContext = append(keyContext, k)
@@ -587,11 +622,11 @@ func (p *parser) setValue(key string, value interface{}) {
 			p.bug("Context for key '%s' has not been established.", keyContext)
 		}
 		switch t := tmpHash.(type) {
-		case []map[string]interface{}:
+		case []map[string]any:
 			// The context is a table of hashes. Pick the most recent table
 			// defined as the current hash.
 			hash = t[len(t)-1]
-		case map[string]interface{}:
+		case map[string]any:
 			hash = t
 		default:
 			p.panicf("Key '%s' has already been defined.", keyContext)
@@ -618,9 +653,8 @@ func (p *parser) setValue(key string, value interface{}) {
 			p.removeImplicit(keyContext)
 			return
 		}
-
-		// Otherwise, we have a concrete key trying to override a previous
-		// key, which is *always* wrong.
+		// Otherwise, we have a concrete key trying to override a previous key,
+		// which is *always* wrong.
 		p.panicf("Key '%s' has already been defined.", keyContext)
 	}
 
@@ -683,8 +717,11 @@ func stripFirstNewline(s string) string {
 // the next newline. After a line-ending backslash, all whitespace is removed
 // until the next non-whitespace character.
 func (p *parser) stripEscapedNewlines(s string) string {
-	var b strings.Builder
-	var i int
+	var (
+		b strings.Builder
+		i int
+	)
+	b.Grow(len(s))
 	for {
 		ix := strings.Index(s[i:], `\`)
 		if ix < 0 {
@@ -714,9 +751,8 @@ func (p *parser) stripEscapedNewlines(s string) string {
 			continue
 		}
 		if !strings.Contains(s[i:j], "\n") {
-			// This is not a line-ending backslash.
-			// (It's a bad escape sequence, but we can let
-			// replaceEscapes catch it.)
+			// This is not a line-ending backslash. (It's a bad escape sequence,
+			// but we can let replaceEscapes catch it.)
 			i++
 			continue
 		}
@@ -727,79 +763,78 @@ func (p *parser) stripEscapedNewlines(s string) string {
 }
 
 func (p *parser) replaceEscapes(it item, str string) string {
-	replaced := make([]rune, 0, len(str))
-	s := []byte(str)
-	r := 0
-	for r < len(s) {
-		if s[r] != '\\' {
-			c, size := utf8.DecodeRune(s[r:])
-			r += size
-			replaced = append(replaced, c)
+	var (
+		b    strings.Builder
+		skip = 0
+	)
+	b.Grow(len(str))
+	for i, c := range str {
+		if skip > 0 {
+			skip--
 			continue
 		}
-		r += 1
-		if r >= len(s) {
+		if c != '\\' {
+			b.WriteRune(c)
+			continue
+		}
+
+		if i >= len(str) {
 			p.bug("Escape sequence at end of string.")
 			return ""
 		}
-		switch s[r] {
+		switch str[i+1] {
 		default:
-			p.bug("Expected valid escape code after \\, but got %q.", s[r])
+			p.bug("Expected valid escape code after \\, but got %q.", str[i+1])
 		case ' ', '\t':
-			p.panicItemf(it, "invalid escape: '\\%c'", s[r])
+			p.panicItemf(it, "invalid escape: '\\%c'", str[i+1])
 		case 'b':
-			replaced = append(replaced, rune(0x0008))
-			r += 1
+			b.WriteByte(0x08)
+			skip = 1
 		case 't':
-			replaced = append(replaced, rune(0x0009))
-			r += 1
+			b.WriteByte(0x09)
+			skip = 1
 		case 'n':
-			replaced = append(replaced, rune(0x000A))
-			r += 1
+			b.WriteByte(0x0a)
+			skip = 1
 		case 'f':
-			replaced = append(replaced, rune(0x000C))
-			r += 1
+			b.WriteByte(0x0c)
+			skip = 1
 		case 'r':
-			replaced = append(replaced, rune(0x000D))
-			r += 1
+			b.WriteByte(0x0d)
+			skip = 1
 		case 'e':
 			if p.tomlNext {
-				replaced = append(replaced, rune(0x001B))
-				r += 1
+				b.WriteByte(0x1b)
+				skip = 1
 			}
 		case '"':
-			replaced = append(replaced, rune(0x0022))
-			r += 1
+			b.WriteByte(0x22)
+			skip = 1
 		case '\\':
-			replaced = append(replaced, rune(0x005C))
-			r += 1
+			b.WriteByte(0x5c)
+			skip = 1
+		// The lexer guarantees the correct number of characters are present;
+		// don't need to check here.
 		case 'x':
 			if p.tomlNext {
-				escaped := p.asciiEscapeToUnicode(it, s[r+1:r+3])
-				replaced = append(replaced, escaped)
-				r += 3
+				escaped := p.asciiEscapeToUnicode(it, str[i+2:i+4])
+				b.WriteRune(escaped)
+				skip = 3
 			}
 		case 'u':
-			// At this point, we know we have a Unicode escape of the form
-			// `uXXXX` at [r, r+5). (Because the lexer guarantees this
-			// for us.)
-			escaped := p.asciiEscapeToUnicode(it, s[r+1:r+5])
-			replaced = append(replaced, escaped)
-			r += 5
+			escaped := p.asciiEscapeToUnicode(it, str[i+2:i+6])
+			b.WriteRune(escaped)
+			skip = 5
 		case 'U':
-			// At this point, we know we have a Unicode escape of the form
-			// `uXXXX` at [r, r+9). (Because the lexer guarantees this
-			// for us.)
-			escaped := p.asciiEscapeToUnicode(it, s[r+1:r+9])
-			replaced = append(replaced, escaped)
-			r += 9
+			escaped := p.asciiEscapeToUnicode(it, str[i+2:i+10])
+			b.WriteRune(escaped)
+			skip = 9
 		}
 	}
-	return string(replaced)
+	return b.String()
 }
 
-func (p *parser) asciiEscapeToUnicode(it item, bs []byte) rune {
-	s := string(bs)
+func (p *parser) asciiEscapeToUnicode(it item, s string) rune {
 	hex, err := strconv.ParseUint(strings.ToLower(s), 16, 32)
 	if err != nil {
 		p.bug("Could not parse '%s' as a hexadecimal number, but the lexer claims it's OK: %s", s, err)
diff --git a/vendor/github.com/BurntSushi/toml/type_fields.go b/vendor/github.com/BurntSushi/toml/type_fields.go
index 254ca82e5..10c51f7ee 100644
--- a/vendor/github.com/BurntSushi/toml/type_fields.go
+++ b/vendor/github.com/BurntSushi/toml/type_fields.go
@@ -25,10 +25,8 @@ type field struct {
 // breaking ties with index sequence.
 type byName []field
 
-func (x byName) Len() int { return len(x) }
-
+func (x byName) Len() int      { return len(x) }
 func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
 func (x byName) Less(i, j int) bool {
 	if x[i].name != x[j].name {
 		return x[i].name < x[j].name
@@ -45,10 +43,8 @@ func (x byName) Less(i, j int) bool {
 // byIndex sorts field by index sequence.
 type byIndex []field
 
-func (x byIndex) Len() int { return len(x) }
-
+func (x byIndex) Len() int      { return len(x) }
 func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
 func (x byIndex) Less(i, j int) bool {
 	for k, xik := range x[i].index {
 		if k >= len(x[j].index) {
diff --git a/vendor/github.com/BurntSushi/toml/type_toml.go b/vendor/github.com/BurntSushi/toml/type_toml.go
index 4e90d7737..1c090d331 100644
--- a/vendor/github.com/BurntSushi/toml/type_toml.go
+++ b/vendor/github.com/BurntSushi/toml/type_toml.go
@@ -22,13 +22,8 @@ func typeIsTable(t tomlType) bool {
 
 type tomlBaseType string
 
-func (btype tomlBaseType) typeString() string {
-	return string(btype)
-}
-
-func (btype tomlBaseType) String() string {
-	return btype.typeString()
-}
+func (btype tomlBaseType) typeString() string { return string(btype) }
+func (btype tomlBaseType) String() string     { return btype.typeString() }
 
 var (
 	tomlInteger   tomlBaseType = "Integer"
@@ -54,7 +49,7 @@ func (p *parser) typeOfPrimitive(lexItem item) tomlType {
 		return tomlFloat
 	case itemDatetime:
 		return tomlDatetime
-	case itemString:
+	case itemString, itemStringEsc:
 		return tomlString
 	case itemMultilineString:
 		return tomlString