Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/github.com/json-iterator/go/iter_float.go b/vendor/github.com/json-iterator/go/iter_float.go
new file mode 100644
index 0000000..b975463
--- /dev/null
+++ b/vendor/github.com/json-iterator/go/iter_float.go
@@ -0,0 +1,339 @@
+package jsoniter
+
+import (
+ "encoding/json"
+ "io"
+ "math/big"
+ "strconv"
+ "strings"
+ "unsafe"
+)
+
+var floatDigits []int8
+
+const invalidCharForNumber = int8(-1)
+const endOfNumber = int8(-2)
+const dotInNumber = int8(-3)
+
+func init() {
+ floatDigits = make([]int8, 256)
+ for i := 0; i < len(floatDigits); i++ {
+ floatDigits[i] = invalidCharForNumber
+ }
+ for i := int8('0'); i <= int8('9'); i++ {
+ floatDigits[i] = i - int8('0')
+ }
+ floatDigits[','] = endOfNumber
+ floatDigits[']'] = endOfNumber
+ floatDigits['}'] = endOfNumber
+ floatDigits[' '] = endOfNumber
+ floatDigits['\t'] = endOfNumber
+ floatDigits['\n'] = endOfNumber
+ floatDigits['.'] = dotInNumber
+}
+
+// ReadBigFloat read big.Float
+func (iter *Iterator) ReadBigFloat() (ret *big.Float) {
+ str := iter.readNumberAsString()
+ if iter.Error != nil && iter.Error != io.EOF {
+ return nil
+ }
+ prec := 64
+ if len(str) > prec {
+ prec = len(str)
+ }
+ val, _, err := big.ParseFloat(str, 10, uint(prec), big.ToZero)
+ if err != nil {
+ iter.Error = err
+ return nil
+ }
+ return val
+}
+
+// ReadBigInt read big.Int
+func (iter *Iterator) ReadBigInt() (ret *big.Int) {
+ str := iter.readNumberAsString()
+ if iter.Error != nil && iter.Error != io.EOF {
+ return nil
+ }
+ ret = big.NewInt(0)
+ var success bool
+ ret, success = ret.SetString(str, 10)
+ if !success {
+ iter.ReportError("ReadBigInt", "invalid big int")
+ return nil
+ }
+ return ret
+}
+
+//ReadFloat32 read float32
+func (iter *Iterator) ReadFloat32() (ret float32) {
+ c := iter.nextToken()
+ if c == '-' {
+ return -iter.readPositiveFloat32()
+ }
+ iter.unreadByte()
+ return iter.readPositiveFloat32()
+}
+
+func (iter *Iterator) readPositiveFloat32() (ret float32) {
+ i := iter.head
+ // first char
+ if i == iter.tail {
+ return iter.readFloat32SlowPath()
+ }
+ c := iter.buf[i]
+ i++
+ ind := floatDigits[c]
+ switch ind {
+ case invalidCharForNumber:
+ return iter.readFloat32SlowPath()
+ case endOfNumber:
+ iter.ReportError("readFloat32", "empty number")
+ return
+ case dotInNumber:
+ iter.ReportError("readFloat32", "leading dot is invalid")
+ return
+ case 0:
+ if i == iter.tail {
+ return iter.readFloat32SlowPath()
+ }
+ c = iter.buf[i]
+ switch c {
+ case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+ iter.ReportError("readFloat32", "leading zero is invalid")
+ return
+ }
+ }
+ value := uint64(ind)
+ // chars before dot
+non_decimal_loop:
+ for ; i < iter.tail; i++ {
+ c = iter.buf[i]
+ ind := floatDigits[c]
+ switch ind {
+ case invalidCharForNumber:
+ return iter.readFloat32SlowPath()
+ case endOfNumber:
+ iter.head = i
+ return float32(value)
+ case dotInNumber:
+ break non_decimal_loop
+ }
+ if value > uint64SafeToMultiple10 {
+ return iter.readFloat32SlowPath()
+ }
+ value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
+ }
+ // chars after dot
+ if c == '.' {
+ i++
+ decimalPlaces := 0
+ if i == iter.tail {
+ return iter.readFloat32SlowPath()
+ }
+ for ; i < iter.tail; i++ {
+ c = iter.buf[i]
+ ind := floatDigits[c]
+ switch ind {
+ case endOfNumber:
+ if decimalPlaces > 0 && decimalPlaces < len(pow10) {
+ iter.head = i
+ return float32(float64(value) / float64(pow10[decimalPlaces]))
+ }
+ // too many decimal places
+ return iter.readFloat32SlowPath()
+ case invalidCharForNumber, dotInNumber:
+ return iter.readFloat32SlowPath()
+ }
+ decimalPlaces++
+ if value > uint64SafeToMultiple10 {
+ return iter.readFloat32SlowPath()
+ }
+ value = (value << 3) + (value << 1) + uint64(ind)
+ }
+ }
+ return iter.readFloat32SlowPath()
+}
+
+func (iter *Iterator) readNumberAsString() (ret string) {
+ strBuf := [16]byte{}
+ str := strBuf[0:0]
+load_loop:
+ for {
+ for i := iter.head; i < iter.tail; i++ {
+ c := iter.buf[i]
+ switch c {
+ case '+', '-', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+ str = append(str, c)
+ continue
+ default:
+ iter.head = i
+ break load_loop
+ }
+ }
+ if !iter.loadMore() {
+ break
+ }
+ }
+ if iter.Error != nil && iter.Error != io.EOF {
+ return
+ }
+ if len(str) == 0 {
+ iter.ReportError("readNumberAsString", "invalid number")
+ }
+ return *(*string)(unsafe.Pointer(&str))
+}
+
+func (iter *Iterator) readFloat32SlowPath() (ret float32) {
+ str := iter.readNumberAsString()
+ if iter.Error != nil && iter.Error != io.EOF {
+ return
+ }
+ errMsg := validateFloat(str)
+ if errMsg != "" {
+ iter.ReportError("readFloat32SlowPath", errMsg)
+ return
+ }
+ val, err := strconv.ParseFloat(str, 32)
+ if err != nil {
+ iter.Error = err
+ return
+ }
+ return float32(val)
+}
+
+// ReadFloat64 read float64
+func (iter *Iterator) ReadFloat64() (ret float64) {
+ c := iter.nextToken()
+ if c == '-' {
+ return -iter.readPositiveFloat64()
+ }
+ iter.unreadByte()
+ return iter.readPositiveFloat64()
+}
+
+func (iter *Iterator) readPositiveFloat64() (ret float64) {
+ i := iter.head
+ // first char
+ if i == iter.tail {
+ return iter.readFloat64SlowPath()
+ }
+ c := iter.buf[i]
+ i++
+ ind := floatDigits[c]
+ switch ind {
+ case invalidCharForNumber:
+ return iter.readFloat64SlowPath()
+ case endOfNumber:
+ iter.ReportError("readFloat64", "empty number")
+ return
+ case dotInNumber:
+ iter.ReportError("readFloat64", "leading dot is invalid")
+ return
+ case 0:
+ if i == iter.tail {
+ return iter.readFloat64SlowPath()
+ }
+ c = iter.buf[i]
+ switch c {
+ case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+ iter.ReportError("readFloat64", "leading zero is invalid")
+ return
+ }
+ }
+ value := uint64(ind)
+ // chars before dot
+non_decimal_loop:
+ for ; i < iter.tail; i++ {
+ c = iter.buf[i]
+ ind := floatDigits[c]
+ switch ind {
+ case invalidCharForNumber:
+ return iter.readFloat64SlowPath()
+ case endOfNumber:
+ iter.head = i
+ return float64(value)
+ case dotInNumber:
+ break non_decimal_loop
+ }
+ if value > uint64SafeToMultiple10 {
+ return iter.readFloat64SlowPath()
+ }
+ value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
+ }
+ // chars after dot
+ if c == '.' {
+ i++
+ decimalPlaces := 0
+ if i == iter.tail {
+ return iter.readFloat64SlowPath()
+ }
+ for ; i < iter.tail; i++ {
+ c = iter.buf[i]
+ ind := floatDigits[c]
+ switch ind {
+ case endOfNumber:
+ if decimalPlaces > 0 && decimalPlaces < len(pow10) {
+ iter.head = i
+ return float64(value) / float64(pow10[decimalPlaces])
+ }
+ // too many decimal places
+ return iter.readFloat64SlowPath()
+ case invalidCharForNumber, dotInNumber:
+ return iter.readFloat64SlowPath()
+ }
+ decimalPlaces++
+ if value > uint64SafeToMultiple10 {
+ return iter.readFloat64SlowPath()
+ }
+ value = (value << 3) + (value << 1) + uint64(ind)
+ }
+ }
+ return iter.readFloat64SlowPath()
+}
+
+func (iter *Iterator) readFloat64SlowPath() (ret float64) {
+ str := iter.readNumberAsString()
+ if iter.Error != nil && iter.Error != io.EOF {
+ return
+ }
+ errMsg := validateFloat(str)
+ if errMsg != "" {
+ iter.ReportError("readFloat64SlowPath", errMsg)
+ return
+ }
+ val, err := strconv.ParseFloat(str, 64)
+ if err != nil {
+ iter.Error = err
+ return
+ }
+ return val
+}
+
+func validateFloat(str string) string {
+ // strconv.ParseFloat is not validating `1.` or `1.e1`
+ if len(str) == 0 {
+ return "empty number"
+ }
+ if str[0] == '-' {
+ return "-- is not valid"
+ }
+ dotPos := strings.IndexByte(str, '.')
+ if dotPos != -1 {
+ if dotPos == len(str)-1 {
+ return "dot can not be last character"
+ }
+ switch str[dotPos+1] {
+ case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+ default:
+ return "missing digit after dot"
+ }
+ }
+ return ""
+}
+
+// ReadNumber read json.Number
+func (iter *Iterator) ReadNumber() (ret json.Number) {
+ return json.Number(iter.readNumberAsString())
+}