vendor: update to latest versions of everything

vendor/github.com/aws/aws-sdk-go/internal/ini/literal_tokens.go

@@ -0,0 +1,317 @@
+package ini
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+var (
+	runesTrue  = []rune("true")
+	runesFalse = []rune("false")
+)
+
+var literalValues = [][]rune{
+	runesTrue,
+	runesFalse,
+}
+
+func isBoolValue(b []rune) bool {
+	for _, lv := range literalValues {
+		if isLitValue(lv, b) {
+			return true
+		}
+	}
+	return false
+}
+
+func isLitValue(want, have []rune) bool {
+	if len(have) < len(want) {
+		return false
+	}
+
+	for i := 0; i < len(want); i++ {
+		if want[i] != have[i] {
+			return false
+		}
+	}
+
+	return true
+}
+
+// isNumberValue will return whether not the leading characters in
+// a byte slice is a number. A number is delimited by whitespace or
+// the newline token.
+//
+// A number is defined to be in a binary, octal, decimal (int | float), hex format,
+// or in scientific notation.
+func isNumberValue(b []rune) bool {
+	negativeIndex := 0
+	helper := numberHelper{}
+	needDigit := false
+
+	for i := 0; i < len(b); i++ {
+		negativeIndex++
+
+		switch b[i] {
+		case '-':
+			if helper.IsNegative() || negativeIndex != 1 {
+				return false
+			}
+			helper.Determine(b[i])
+			needDigit = true
+			continue
+		case 'e', 'E':
+			if err := helper.Determine(b[i]); err != nil {
+				return false
+			}
+			negativeIndex = 0
+			needDigit = true
+			continue
+		case 'b':
+			if helper.numberFormat == hex {
+				break
+			}
+			fallthrough
+		case 'o', 'x':
+			needDigit = true
+			if i == 0 {
+				return false
+			}
+
+			fallthrough
+		case '.':
+			if err := helper.Determine(b[i]); err != nil {
+				return false
+			}
+			needDigit = true
+			continue
+		}
+
+		if i > 0 && (isNewline(b[i:]) || isWhitespace(b[i])) {
+			return !needDigit
+		}
+
+		if !helper.CorrectByte(b[i]) {
+			return false
+		}
+		needDigit = false
+	}
+
+	return !needDigit
+}
+
+func isValid(b []rune) (bool, int, error) {
+	if len(b) == 0 {
+		// TODO: should probably return an error
+		return false, 0, nil
+	}
+
+	return isValidRune(b[0]), 1, nil
+}
+
+func isValidRune(r rune) bool {
+	return r != ':' && r != '=' && r != '[' && r != ']' && r != ' ' && r != '\n'
+}
+
+// ValueType is an enum that will signify what type
+// the Value is
+type ValueType int
+
+func (v ValueType) String() string {
+	switch v {
+	case NoneType:
+		return "NONE"
+	case DecimalType:
+		return "FLOAT"
+	case IntegerType:
+		return "INT"
+	case StringType:
+		return "STRING"
+	case BoolType:
+		return "BOOL"
+	}
+
+	return ""
+}
+
+// ValueType enums
+const (
+	NoneType = ValueType(iota)
+	DecimalType
+	IntegerType
+	StringType
+	QuotedStringType
+	BoolType
+)
+
+// Value is a union container
+type Value struct {
+	Type ValueType
+	raw  []rune
+
+	integer int64
+	decimal float64
+	boolean bool
+	str     string
+}
+
+func newValue(t ValueType, base int, raw []rune) (Value, error) {
+	v := Value{
+		Type: t,
+		raw:  raw,
+	}
+	var err error
+
+	switch t {
+	case DecimalType:
+		v.decimal, err = strconv.ParseFloat(string(raw), 64)
+		if err != nil {
+			panic(err)
+		}
+	case IntegerType:
+		if base != 10 {
+			raw = raw[2:]
+		}
+
+		v.integer, err = strconv.ParseInt(string(raw), base, 64)
+	case StringType:
+		v.str = string(raw)
+	case QuotedStringType:
+		v.str = string(raw[1 : len(raw)-1])
+	case BoolType:
+		v.boolean = runeCompare(v.raw, runesTrue)
+	}
+
+	return v, err
+}
+
+// Append will append values and change the type to a string
+// type.
+func (v *Value) Append(tok Token) {
+	r := tok.Raw()
+	if v.Type != QuotedStringType {
+		v.Type = StringType
+		r = tok.raw[1 : len(tok.raw)-1]
+	}
+	if tok.Type() != TokenLit {
+		v.raw = append(v.raw, tok.Raw()...)
+	} else {
+		v.raw = append(v.raw, r...)
+	}
+}
+
+func (v Value) String() string {
+	switch v.Type {
+	case DecimalType:
+		return fmt.Sprintf("decimal: %f", v.decimal)
+	case IntegerType:
+		return fmt.Sprintf("integer: %d", v.integer)
+	case StringType:
+		return fmt.Sprintf("string: %s", string(v.raw))
+	case QuotedStringType:
+		return fmt.Sprintf("quoted string: %s", string(v.raw))
+	case BoolType:
+		return fmt.Sprintf("bool: %t", v.boolean)
+	default:
+		return "union not set"
+	}
+}
+
+func newLitToken(b []rune) (Token, int, error) {
+	n := 0
+	var err error
+
+	token := Token{}
+	if b[0] == '"' {
+		n, err = getStringValue(b)
+		if err != nil {
+			return token, n, err
+		}
+
+		token = newToken(TokenLit, b[:n], QuotedStringType)
+	} else if isNumberValue(b) {
+		var base int
+		base, n, err = getNumericalValue(b)
+		if err != nil {
+			return token, 0, err
+		}
+
+		value := b[:n]
+		vType := IntegerType
+		if contains(value, '.') || hasExponent(value) {
+			vType = DecimalType
+		}
+		token = newToken(TokenLit, value, vType)
+		token.base = base
+	} else if isBoolValue(b) {
+		n, err = getBoolValue(b)
+
+		token = newToken(TokenLit, b[:n], BoolType)
+	} else {
+		n, err = getValue(b)
+		token = newToken(TokenLit, b[:n], StringType)
+	}
+
+	return token, n, err
+}
+
+// IntValue returns an integer value
+func (v Value) IntValue() int64 {
+	return v.integer
+}
+
+// FloatValue returns a float value
+func (v Value) FloatValue() float64 {
+	return v.decimal
+}
+
+// BoolValue returns a bool value
+func (v Value) BoolValue() bool {
+	return v.boolean
+}
+
+func isTrimmable(r rune) bool {
+	switch r {
+	case '\n', ' ':
+		return true
+	}
+	return false
+}
+
+// StringValue returns the string value
+func (v Value) StringValue() string {
+	switch v.Type {
+	case StringType:
+		return strings.TrimFunc(string(v.raw), isTrimmable)
+	case QuotedStringType:
+		// preserve all characters in the quotes
+		return string(removeEscapedCharacters(v.raw[1 : len(v.raw)-1]))
+	default:
+		return strings.TrimFunc(string(v.raw), isTrimmable)
+	}
+}
+
+func contains(runes []rune, c rune) bool {
+	for i := 0; i < len(runes); i++ {
+		if runes[i] == c {
+			return true
+		}
+	}
+
+	return false
+}
+
+func runeCompare(v1 []rune, v2 []rune) bool {
+	if len(v1) != len(v2) {
+		return false
+	}
+
+	for i := 0; i < len(v1); i++ {
+		if v1[i] != v2[i] {
+			return false
+		}
+	}
+
+	return true
+}