Strip /post from text string

mods/mastodon.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"strings"
 
 	"git.fromouter.space/hamcha/tg"
 	"github.com/mattn/go-mastodon"
@@ -130,7 +131,13 @@ func mastodon_message(broker *tg.Broker, update tg.APIMessage) {
 			return
 		}
 
-		status, err := sendToot(*(update.Text), "")
+		// Strip command from beginning of text string, if it's there
+		text := *(update.Text)
+		if strings.HasPrefix(text, "/post ") || strings.HasPrefix(text, "/post@"+*botname+" ") {
+			text = text[strings.IndexRune(text, ' ')+1:]
+		}
+
+		status, err := sendToot(text, "")
 		if err != nil {
 			log.Printf("[mastodon] Send toot failed: %s\n", err.Error())
 			broker.SendTextMessage(update.Chat, "<b>ERRORE!</b> @hamcha controlla la console!", &tg.MessageOptions{