Strip IRC colors sent to Whatsapp

bridge/whatsapp/whatsapp.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"strings"
 	"time"
+	"regexp"
 
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
@@ -243,6 +244,10 @@ func (b *Bwhatsapp) JoinChannel(channel config.ChannelInfo) error {
 func (b *Bwhatsapp) Send(msg config.Message) (string, error) {
 	b.Log.Debugf("=> Receiving %#v", msg)
 
+	// Strip IRC colors sent to Whatsapp
+	re := regexp.MustCompile(`\x03(?:\d{1,2}(?:,\d{1,2})?)?|[[:cntrl:]]`)
+	msg.Text = re.ReplaceAllString(msg.Text, "")
+
 	// Delete message
 	if msg.Event == config.EventMsgDelete {
 		if msg.ID == "" {