--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/github.com/pelletier/go-toml/v2/decode.go	Tue Aug 23 22:39:43 2022 +0200
@@ -0,0 +1,544 @@
+package toml
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"time"
+)
+
+func parseInteger(b []byte) (int64, error) {
+	if len(b) > 2 && b[0] == '0' {
+		switch b[1] {
+		case 'x':
+			return parseIntHex(b)
+		case 'b':
+			return parseIntBin(b)
+		case 'o':
+			return parseIntOct(b)
+		default:
+			panic(fmt.Errorf("invalid base '%c', should have been checked by scanIntOrFloat", b[1]))
+		}
+	}
+
+	return parseIntDec(b)
+}
+
+func parseLocalDate(b []byte) (LocalDate, error) {
+	// full-date      = date-fullyear "-" date-month "-" date-mday
+	// date-fullyear  = 4DIGIT
+	// date-month     = 2DIGIT  ; 01-12
+	// date-mday      = 2DIGIT  ; 01-28, 01-29, 01-30, 01-31 based on month/year
+	var date LocalDate
+
+	if len(b) != 10 || b[4] != '-' || b[7] != '-' {
+		return date, newDecodeError(b, "dates are expected to have the format YYYY-MM-DD")
+	}
+
+	var err error
+
+	date.Year, err = parseDecimalDigits(b[0:4])
+	if err != nil {
+		return LocalDate{}, err
+	}
+
+	date.Month, err = parseDecimalDigits(b[5:7])
+	if err != nil {
+		return LocalDate{}, err
+	}
+
+	date.Day, err = parseDecimalDigits(b[8:10])
+	if err != nil {
+		return LocalDate{}, err
+	}
+
+	if !isValidDate(date.Year, date.Month, date.Day) {
+		return LocalDate{}, newDecodeError(b, "impossible date")
+	}
+
+	return date, nil
+}
+
+func parseDecimalDigits(b []byte) (int, error) {
+	v := 0
+
+	for i, c := range b {
+		if c < '0' || c > '9' {
+			return 0, newDecodeError(b[i:i+1], "expected digit (0-9)")
+		}
+		v *= 10
+		v += int(c - '0')
+	}
+
+	return v, nil
+}
+
+func parseDateTime(b []byte) (time.Time, error) {
+	// offset-date-time = full-date time-delim full-time
+	// full-time      = partial-time time-offset
+	// time-offset    = "Z" / time-numoffset
+	// time-numoffset = ( "+" / "-" ) time-hour ":" time-minute
+
+	dt, b, err := parseLocalDateTime(b)
+	if err != nil {
+		return time.Time{}, err
+	}
+
+	var zone *time.Location
+
+	if len(b) == 0 {
+		// parser should have checked that when assigning the date time node
+		panic("date time should have a timezone")
+	}
+
+	if b[0] == 'Z' || b[0] == 'z' {
+		b = b[1:]
+		zone = time.UTC
+	} else {
+		const dateTimeByteLen = 6
+		if len(b) != dateTimeByteLen {
+			return time.Time{}, newDecodeError(b, "invalid date-time timezone")
+		}
+		var direction int
+		switch b[0] {
+		case '-':
+			direction = -1
+		case '+':
+			direction = +1
+		default:
+			return time.Time{}, newDecodeError(b[:1], "invalid timezone offset character")
+		}
+
+		if b[3] != ':' {
+			return time.Time{}, newDecodeError(b[3:4], "expected a : separator")
+		}
+
+		hours, err := parseDecimalDigits(b[1:3])
+		if err != nil {
+			return time.Time{}, err
+		}
+		if hours > 23 {
+			return time.Time{}, newDecodeError(b[:1], "invalid timezone offset hours")
+		}
+
+		minutes, err := parseDecimalDigits(b[4:6])
+		if err != nil {
+			return time.Time{}, err
+		}
+		if minutes > 59 {
+			return time.Time{}, newDecodeError(b[:1], "invalid timezone offset minutes")
+		}
+
+		seconds := direction * (hours*3600 + minutes*60)
+		if seconds == 0 {
+			zone = time.UTC
+		} else {
+			zone = time.FixedZone("", seconds)
+		}
+		b = b[dateTimeByteLen:]
+	}
+
+	if len(b) > 0 {
+		return time.Time{}, newDecodeError(b, "extra bytes at the end of the timezone")
+	}
+
+	t := time.Date(
+		dt.Year,
+		time.Month(dt.Month),
+		dt.Day,
+		dt.Hour,
+		dt.Minute,
+		dt.Second,
+		dt.Nanosecond,
+		zone)
+
+	return t, nil
+}
+
+func parseLocalDateTime(b []byte) (LocalDateTime, []byte, error) {
+	var dt LocalDateTime
+
+	const localDateTimeByteMinLen = 11
+	if len(b) < localDateTimeByteMinLen {
+		return dt, nil, newDecodeError(b, "local datetimes are expected to have the format YYYY-MM-DDTHH:MM:SS[.NNNNNNNNN]")
+	}
+
+	date, err := parseLocalDate(b[:10])
+	if err != nil {
+		return dt, nil, err
+	}
+	dt.LocalDate = date
+
+	sep := b[10]
+	if sep != 'T' && sep != ' ' && sep != 't' {
+		return dt, nil, newDecodeError(b[10:11], "datetime separator is expected to be T or a space")
+	}
+
+	t, rest, err := parseLocalTime(b[11:])
+	if err != nil {
+		return dt, nil, err
+	}
+	dt.LocalTime = t
+
+	return dt, rest, nil
+}
+
+// parseLocalTime is a bit different because it also returns the remaining
+// []byte that is didn't need. This is to allow parseDateTime to parse those
+// remaining bytes as a timezone.
+func parseLocalTime(b []byte) (LocalTime, []byte, error) {
+	var (
+		nspow = [10]int{0, 1e8, 1e7, 1e6, 1e5, 1e4, 1e3, 1e2, 1e1, 1e0}
+		t     LocalTime
+	)
+
+	// check if b matches to have expected format HH:MM:SS[.NNNNNN]
+	const localTimeByteLen = 8
+	if len(b) < localTimeByteLen {
+		return t, nil, newDecodeError(b, "times are expected to have the format HH:MM:SS[.NNNNNN]")
+	}
+
+	var err error
+
+	t.Hour, err = parseDecimalDigits(b[0:2])
+	if err != nil {
+		return t, nil, err
+	}
+
+	if t.Hour > 23 {
+		return t, nil, newDecodeError(b[0:2], "hour cannot be greater 23")
+	}
+	if b[2] != ':' {
+		return t, nil, newDecodeError(b[2:3], "expecting colon between hours and minutes")
+	}
+
+	t.Minute, err = parseDecimalDigits(b[3:5])
+	if err != nil {
+		return t, nil, err
+	}
+	if t.Minute > 59 {
+		return t, nil, newDecodeError(b[3:5], "minutes cannot be greater 59")
+	}
+	if b[5] != ':' {
+		return t, nil, newDecodeError(b[5:6], "expecting colon between minutes and seconds")
+	}
+
+	t.Second, err = parseDecimalDigits(b[6:8])
+	if err != nil {
+		return t, nil, err
+	}
+
+	if t.Second > 60 {
+		return t, nil, newDecodeError(b[6:8], "seconds cannot be greater 60")
+	}
+
+	b = b[8:]
+
+	if len(b) >= 1 && b[0] == '.' {
+		frac := 0
+		precision := 0
+		digits := 0
+
+		for i, c := range b[1:] {
+			if !isDigit(c) {
+				if i == 0 {
+					return t, nil, newDecodeError(b[0:1], "need at least one digit after fraction point")
+				}
+				break
+			}
+			digits++
+
+			const maxFracPrecision = 9
+			if i >= maxFracPrecision {
+				// go-toml allows decoding fractional seconds
+				// beyond the supported precision of 9
+				// digits. It truncates the fractional component
+				// to the supported precision and ignores the
+				// remaining digits.
+				//
+				// https://github.com/pelletier/go-toml/discussions/707
+				continue
+			}
+
+			frac *= 10
+			frac += int(c - '0')
+			precision++
+		}
+
+		if precision == 0 {
+			return t, nil, newDecodeError(b[:1], "nanoseconds need at least one digit")
+		}
+
+		t.Nanosecond = frac * nspow[precision]
+		t.Precision = precision
+
+		return t, b[1+digits:], nil
+	}
+	return t, b, nil
+}
+
+//nolint:cyclop
+func parseFloat(b []byte) (float64, error) {
+	if len(b) == 4 && (b[0] == '+' || b[0] == '-') && b[1] == 'n' && b[2] == 'a' && b[3] == 'n' {
+		return math.NaN(), nil
+	}
+
+	cleaned, err := checkAndRemoveUnderscoresFloats(b)
+	if err != nil {
+		return 0, err
+	}
+
+	if cleaned[0] == '.' {
+		return 0, newDecodeError(b, "float cannot start with a dot")
+	}
+
+	if cleaned[len(cleaned)-1] == '.' {
+		return 0, newDecodeError(b, "float cannot end with a dot")
+	}
+
+	dotAlreadySeen := false
+	for i, c := range cleaned {
+		if c == '.' {
+			if dotAlreadySeen {
+				return 0, newDecodeError(b[i:i+1], "float can have at most one decimal point")
+			}
+			if !isDigit(cleaned[i-1]) {
+				return 0, newDecodeError(b[i-1:i+1], "float decimal point must be preceded by a digit")
+			}
+			if !isDigit(cleaned[i+1]) {
+				return 0, newDecodeError(b[i:i+2], "float decimal point must be followed by a digit")
+			}
+			dotAlreadySeen = true
+		}
+	}
+
+	start := 0
+	if cleaned[0] == '+' || cleaned[0] == '-' {
+		start = 1
+	}
+	if cleaned[start] == '0' && isDigit(cleaned[start+1]) {
+		return 0, newDecodeError(b, "float integer part cannot have leading zeroes")
+	}
+
+	f, err := strconv.ParseFloat(string(cleaned), 64)
+	if err != nil {
+		return 0, newDecodeError(b, "unable to parse float: %w", err)
+	}
+
+	return f, nil
+}
+
+func parseIntHex(b []byte) (int64, error) {
+	cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:])
+	if err != nil {
+		return 0, err
+	}
+
+	i, err := strconv.ParseInt(string(cleaned), 16, 64)
+	if err != nil {
+		return 0, newDecodeError(b, "couldn't parse hexadecimal number: %w", err)
+	}
+
+	return i, nil
+}
+
+func parseIntOct(b []byte) (int64, error) {
+	cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:])
+	if err != nil {
+		return 0, err
+	}
+
+	i, err := strconv.ParseInt(string(cleaned), 8, 64)
+	if err != nil {
+		return 0, newDecodeError(b, "couldn't parse octal number: %w", err)
+	}
+
+	return i, nil
+}
+
+func parseIntBin(b []byte) (int64, error) {
+	cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:])
+	if err != nil {
+		return 0, err
+	}
+
+	i, err := strconv.ParseInt(string(cleaned), 2, 64)
+	if err != nil {
+		return 0, newDecodeError(b, "couldn't parse binary number: %w", err)
+	}
+
+	return i, nil
+}
+
+func isSign(b byte) bool {
+	return b == '+' || b == '-'
+}
+
+func parseIntDec(b []byte) (int64, error) {
+	cleaned, err := checkAndRemoveUnderscoresIntegers(b)
+	if err != nil {
+		return 0, err
+	}
+
+	startIdx := 0
+
+	if isSign(cleaned[0]) {
+		startIdx++
+	}
+
+	if len(cleaned) > startIdx+1 && cleaned[startIdx] == '0' {
+		return 0, newDecodeError(b, "leading zero not allowed on decimal number")
+	}
+
+	i, err := strconv.ParseInt(string(cleaned), 10, 64)
+	if err != nil {
+		return 0, newDecodeError(b, "couldn't parse decimal number: %w", err)
+	}
+
+	return i, nil
+}
+
+func checkAndRemoveUnderscoresIntegers(b []byte) ([]byte, error) {
+	start := 0
+	if b[start] == '+' || b[start] == '-' {
+		start++
+	}
+
+	if len(b) == start {
+		return b, nil
+	}
+
+	if b[start] == '_' {
+		return nil, newDecodeError(b[start:start+1], "number cannot start with underscore")
+	}
+
+	if b[len(b)-1] == '_' {
+		return nil, newDecodeError(b[len(b)-1:], "number cannot end with underscore")
+	}
+
+	// fast path
+	i := 0
+	for ; i < len(b); i++ {
+		if b[i] == '_' {
+			break
+		}
+	}
+	if i == len(b) {
+		return b, nil
+	}
+
+	before := false
+	cleaned := make([]byte, i, len(b))
+	copy(cleaned, b)
+
+	for i++; i < len(b); i++ {
+		c := b[i]
+		if c == '_' {
+			if !before {
+				return nil, newDecodeError(b[i-1:i+1], "number must have at least one digit between underscores")
+			}
+			before = false
+		} else {
+			before = true
+			cleaned = append(cleaned, c)
+		}
+	}
+
+	return cleaned, nil
+}
+
+func checkAndRemoveUnderscoresFloats(b []byte) ([]byte, error) {
+	if b[0] == '_' {
+		return nil, newDecodeError(b[0:1], "number cannot start with underscore")
+	}
+
+	if b[len(b)-1] == '_' {
+		return nil, newDecodeError(b[len(b)-1:], "number cannot end with underscore")
+	}
+
+	// fast path
+	i := 0
+	for ; i < len(b); i++ {
+		if b[i] == '_' {
+			break
+		}
+	}
+	if i == len(b) {
+		return b, nil
+	}
+
+	before := false
+	cleaned := make([]byte, 0, len(b))
+
+	for i := 0; i < len(b); i++ {
+		c := b[i]
+
+		switch c {
+		case '_':
+			if !before {
+				return nil, newDecodeError(b[i-1:i+1], "number must have at least one digit between underscores")
+			}
+			if i < len(b)-1 && (b[i+1] == 'e' || b[i+1] == 'E') {
+				return nil, newDecodeError(b[i+1:i+2], "cannot have underscore before exponent")
+			}
+			before = false
+		case '+', '-':
+			// signed exponents
+			cleaned = append(cleaned, c)
+			before = false
+		case 'e', 'E':
+			if i < len(b)-1 && b[i+1] == '_' {
+				return nil, newDecodeError(b[i+1:i+2], "cannot have underscore after exponent")
+			}
+			cleaned = append(cleaned, c)
+		case '.':
+			if i < len(b)-1 && b[i+1] == '_' {
+				return nil, newDecodeError(b[i+1:i+2], "cannot have underscore after decimal point")
+			}
+			if i > 0 && b[i-1] == '_' {
+				return nil, newDecodeError(b[i-1:i], "cannot have underscore before decimal point")
+			}
+			cleaned = append(cleaned, c)
+		default:
+			before = true
+			cleaned = append(cleaned, c)
+		}
+	}
+
+	return cleaned, nil
+}
+
+// isValidDate checks if a provided date is a date that exists.
+func isValidDate(year int, month int, day int) bool {
+	return month > 0 && month < 13 && day > 0 && day <= daysIn(month, year)
+}
+
+// daysBefore[m] counts the number of days in a non-leap year
+// before month m begins. There is an entry for m=12, counting
+// the number of days before January of next year (365).
+var daysBefore = [...]int32{
+	0,
+	31,
+	31 + 28,
+	31 + 28 + 31,
+	31 + 28 + 31 + 30,
+	31 + 28 + 31 + 30 + 31,
+	31 + 28 + 31 + 30 + 31 + 30,
+	31 + 28 + 31 + 30 + 31 + 30 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31,
+}
+
+func daysIn(m int, year int) int {
+	if m == 2 && isLeap(year) {
+		return 29
+	}
+	return int(daysBefore[m] - daysBefore[m-1])
+}
+
+func isLeap(year int) bool {
+	return year%4 == 0 && (year%100 != 0 || year%400 == 0)
+}