feat: Added EscapeMarkdown and Client#SendMarkdownMessage

client.go

@@ -7,8 +7,11 @@ import (
 	"net/http"
 	"net/url"
 	"strconv"
+	"strings"
 )
 
+const badChars = "_*[]()~`>#+-=|{}.!"
+
 type Client struct {
 	Key    string
 	Offset int64
@@ -37,6 +40,18 @@ func (c *Client) GetUpdates() (Response, error) {
 	return res, err
 }
 
+func EscapeMarkdown(msg string) string {
+	for _, char := range badChars {
+		ch := string(char)
+		msg = strings.Replace(msg, ch, "\\"+ch, -1)
+	}
+	return msg
+}
+
+func (c *Client) SendMarkdownMessage(chatId, body string) (*SendMessageResponse, error) {
+	return c.SendMessage(chatId, body, url.Values{"parse_mode": {"MarkdownV2"}})
+}
+
 func (c *Client) SendMessage(chatId, body string, options ...url.Values) (ret *SendMessageResponse, err error) {
 	values := url.Values{
 		"chat_id": {chatId},