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-rw-r--r--vendor/github.com/aws/aws-sdk-go/internal/ini/value_util.go284
1 files changed, 284 insertions, 0 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/internal/ini/value_util.go b/vendor/github.com/aws/aws-sdk-go/internal/ini/value_util.go
new file mode 100644
index 000000000..305999d29
--- /dev/null
+++ b/vendor/github.com/aws/aws-sdk-go/internal/ini/value_util.go
@@ -0,0 +1,284 @@
+package ini
+
+import (
+ "fmt"
+)
+
+// getStringValue will return a quoted string and the amount
+// of bytes read
+//
+// an error will be returned if the string is not properly formatted
+func getStringValue(b []rune) (int, error) {
+ if b[0] != '"' {
+ return 0, NewParseError("strings must start with '\"'")
+ }
+
+ endQuote := false
+ i := 1
+
+ for ; i < len(b) && !endQuote; i++ {
+ if escaped := isEscaped(b[:i], b[i]); b[i] == '"' && !escaped {
+ endQuote = true
+ break
+ } else if escaped {
+ /*c, err := getEscapedByte(b[i])
+ if err != nil {
+ return 0, err
+ }
+
+ b[i-1] = c
+ b = append(b[:i], b[i+1:]...)
+ i--*/
+
+ continue
+ }
+ }
+
+ if !endQuote {
+ return 0, NewParseError("missing '\"' in string value")
+ }
+
+ return i + 1, nil
+}
+
+// getBoolValue will return a boolean and the amount
+// of bytes read
+//
+// an error will be returned if the boolean is not of a correct
+// value
+func getBoolValue(b []rune) (int, error) {
+ if len(b) < 4 {
+ return 0, NewParseError("invalid boolean value")
+ }
+
+ n := 0
+ for _, lv := range literalValues {
+ if len(lv) > len(b) {
+ continue
+ }
+
+ if isLitValue(lv, b) {
+ n = len(lv)
+ }
+ }
+
+ if n == 0 {
+ return 0, NewParseError("invalid boolean value")
+ }
+
+ return n, nil
+}
+
+// getNumericalValue will return a numerical string, the amount
+// of bytes read, and the base of the number
+//
+// an error will be returned if the number is not of a correct
+// value
+func getNumericalValue(b []rune) (int, int, error) {
+ if !isDigit(b[0]) {
+ return 0, 0, NewParseError("invalid digit value")
+ }
+
+ i := 0
+ helper := numberHelper{}
+
+loop:
+ for negativeIndex := 0; i < len(b); i++ {
+ negativeIndex++
+
+ if !isDigit(b[i]) {
+ switch b[i] {
+ case '-':
+ if helper.IsNegative() || negativeIndex != 1 {
+ return 0, 0, NewParseError("parse error '-'")
+ }
+
+ n := getNegativeNumber(b[i:])
+ i += (n - 1)
+ helper.Determine(b[i])
+ continue
+ case '.':
+ if err := helper.Determine(b[i]); err != nil {
+ return 0, 0, err
+ }
+ case 'e', 'E':
+ if err := helper.Determine(b[i]); err != nil {
+ return 0, 0, err
+ }
+
+ negativeIndex = 0
+ case 'b':
+ if helper.numberFormat == hex {
+ break
+ }
+ fallthrough
+ case 'o', 'x':
+ if i == 0 && b[i] != '0' {
+ return 0, 0, NewParseError("incorrect base format, expected leading '0'")
+ }
+
+ if i != 1 {
+ return 0, 0, NewParseError(fmt.Sprintf("incorrect base format found %s at %d index", string(b[i]), i))
+ }
+
+ if err := helper.Determine(b[i]); err != nil {
+ return 0, 0, err
+ }
+ default:
+ if isWhitespace(b[i]) {
+ break loop
+ }
+
+ if isNewline(b[i:]) {
+ break loop
+ }
+
+ if !(helper.numberFormat == hex && isHexByte(b[i])) {
+ if i+2 < len(b) && !isNewline(b[i:i+2]) {
+ return 0, 0, NewParseError("invalid numerical character")
+ } else if !isNewline([]rune{b[i]}) {
+ return 0, 0, NewParseError("invalid numerical character")
+ }
+
+ break loop
+ }
+ }
+ }
+ }
+
+ return helper.Base(), i, nil
+}
+
+// isDigit will return whether or not something is an integer
+func isDigit(b rune) bool {
+ return b >= '0' && b <= '9'
+}
+
+func hasExponent(v []rune) bool {
+ return contains(v, 'e') || contains(v, 'E')
+}
+
+func isBinaryByte(b rune) bool {
+ switch b {
+ case '0', '1':
+ return true
+ default:
+ return false
+ }
+}
+
+func isOctalByte(b rune) bool {
+ switch b {
+ case '0', '1', '2', '3', '4', '5', '6', '7':
+ return true
+ default:
+ return false
+ }
+}
+
+func isHexByte(b rune) bool {
+ if isDigit(b) {
+ return true
+ }
+ return (b >= 'A' && b <= 'F') ||
+ (b >= 'a' && b <= 'f')
+}
+
+func getValue(b []rune) (int, error) {
+ i := 0
+
+ for i < len(b) {
+ if isNewline(b[i:]) {
+ break
+ }
+
+ if isOp(b[i:]) {
+ break
+ }
+
+ valid, n, err := isValid(b[i:])
+ if err != nil {
+ return 0, err
+ }
+
+ if !valid {
+ break
+ }
+
+ i += n
+ }
+
+ return i, nil
+}
+
+// getNegativeNumber will return a negative number from a
+// byte slice. This will iterate through all characters until
+// a non-digit has been found.
+func getNegativeNumber(b []rune) int {
+ if b[0] != '-' {
+ return 0
+ }
+
+ i := 1
+ for ; i < len(b); i++ {
+ if !isDigit(b[i]) {
+ return i
+ }
+ }
+
+ return i
+}
+
+// isEscaped will return whether or not the character is an escaped
+// character.
+func isEscaped(value []rune, b rune) bool {
+ if len(value) == 0 {
+ return false
+ }
+
+ switch b {
+ case '\'': // single quote
+ case '"': // quote
+ case 'n': // newline
+ case 't': // tab
+ case '\\': // backslash
+ default:
+ return false
+ }
+
+ return value[len(value)-1] == '\\'
+}
+
+func getEscapedByte(b rune) (rune, error) {
+ switch b {
+ case '\'': // single quote
+ return '\'', nil
+ case '"': // quote
+ return '"', nil
+ case 'n': // newline
+ return '\n', nil
+ case 't': // table
+ return '\t', nil
+ case '\\': // backslash
+ return '\\', nil
+ default:
+ return b, NewParseError(fmt.Sprintf("invalid escaped character %c", b))
+ }
+}
+
+func removeEscapedCharacters(b []rune) []rune {
+ for i := 0; i < len(b); i++ {
+ if isEscaped(b[:i], b[i]) {
+ c, err := getEscapedByte(b[i])
+ if err != nil {
+ return b
+ }
+
+ b[i-1] = c
+ b = append(b[:i], b[i+1:]...)
+ i--
+ }
+ }
+
+ return b
+}