Add non UTF-8 encoding support

go.mod

@@ -1,3 +1,5 @@
 module github.com/thoj/go-ircevent
 
 go 1.12
+
+require golang.org/x/text v0.3.2

go.sum

@@ -0,0 +1,3 @@
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

irc.go

@@ -30,6 +30,8 @@ import (
 	"strconv"
 	"strings"
 	"time"
+
+	"golang.org/x/text/encoding"
 )
 
 const (
@@ -41,7 +43,8 @@ var ErrDisconnected = errors.New("Disconnect Called")
 // Read data from a connection. To be used as a goroutine.
 func (irc *Connection) readLoop() {
 	defer irc.Done()
-	br := bufio.NewReaderSize(irc.socket, 512)
+	r := irc.Encoding.NewDecoder().Reader(irc.socket)
+	br := bufio.NewReaderSize(r, 512)
 
 	errChan := irc.ErrorChan()
 
@@ -155,6 +158,7 @@ func parseToEvent(msg string) (*Event, error) {
 // Loop to write to a connection. To be used as a goroutine.
 func (irc *Connection) writeLoop() {
 	defer irc.Done()
+	w := irc.Encoding.NewEncoder().Writer(irc.socket)
 	errChan := irc.ErrorChan()
 	for {
 		select {
@@ -172,7 +176,7 @@ func (irc *Connection) writeLoop() {
 			// Set a write deadline based on the time out
 			irc.socket.SetWriteDeadline(time.Now().Add(irc.Timeout))
 
-			_, err := irc.socket.Write([]byte(b))
+			_, err := w.Write([]byte(b))
 
 			// Past blocking write, bin timeout
 			var zero time.Time
@@ -465,6 +469,10 @@ func (irc *Connection) Connect(server string) error {
 		return err
 	}
 
+	if irc.Encoding == nil {
+		irc.Encoding = encoding.Nop
+	}
+
 	irc.stopped = false
 	irc.Log.Printf("Connected to %s (%s)\n", irc.Server, irc.socket.RemoteAddr())
 

irc_struct.go

@@ -12,6 +12,8 @@ import (
 	"regexp"
 	"sync"
 	"time"
+
+	"golang.org/x/text/encoding"
 )
 
 type Connection struct {
@@ -35,6 +37,7 @@ type Connection struct {
 	PingFreq         time.Duration
 	KeepAlive        time.Duration
 	Server           string
+	Encoding         encoding.Encoding
 
 	RealName string // The real name we want to display.
 	// If zero-value defaults to the user.