Substitute old pktline encoder/decoder with new pktline scanner (#84)

* replace old pktline package with new pktline scanner

* remove error checks on pktline.NewFromString

* fix deppend bug

* reduce memory garbage when pktline.NewFromStrings

* improve int to hex conversion to help gc

* make intToHex func private

* clean function names

1 files changed, 0 insertions, 64 deletions

diff --git a/formats/pktline/encoder.go b/formats/pktline/encoder.go
deleted file mode 100644
index 18efa25..0000000
--- a/formats/pktline/encoder.go
+++ /dev/null
@@ -1,64 +0,0 @@
-package pktline
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-)
-
-var (
-	//ErrOverflow is triggered when the line length exceed the MaxLength
-	ErrOverflow = errors.New("unexpected string length (overflow)")
-)
-
-// Encoder implements a pkt-line format encoder
-type Encoder struct {
-	lines []string
-}
-
-// NewEncoder returns a new Encoder
-func NewEncoder() *Encoder {
-	return &Encoder{make([]string, 0)}
-}
-
-// AddLine encode and adds a line to the encoder
-func (e *Encoder) AddLine(line string) error {
-	le, err := EncodeFromString(line + "\n")
-	if err != nil {
-		return err
-	}
-
-	e.lines = append(e.lines, le)
-	return nil
-}
-
-// AddFlush adds a flush-pkt to the encoder
-func (e *Encoder) AddFlush() {
-	e.lines = append(e.lines, "0000")
-}
-
-// Reader returns a string.Reader over the encoder
-func (e *Encoder) Reader() *strings.Reader {
-	data := strings.Join(e.lines, "")
-
-	return strings.NewReader(data)
-}
-
-// EncodeFromString encodes a string to pkt-line format
-func EncodeFromString(line string) (string, error) {
-	return Encode([]byte(line))
-}
-
-// Encode encodes a byte slice to pkt-line format
-func Encode(line []byte) (string, error) {
-	if line == nil {
-		return "0000", nil
-	}
-
-	l := len(line) + HeaderLength
-	if l > MaxLength {
-		return "", ErrOverflow
-	}
-
-	return fmt.Sprintf("%04x%s", l, line), nil
-}