+ README, minor fixes

README.md

@@ -0,0 +1,22 @@
+# telegram.sh, a telegram bot api library in bash
+
+This library aims to make creating quick-and-dirty bots in Bash as easy as possible.
+
+```
+#!/bin/bash
+source tg.sh
+TELEGRAM_TOKEN=""
+
+function _on_msg() {
+	echo "${event[from_username]}: ${event[text]}"
+
+	if [[ "${event[text]}" == "o/" ]]; then
+		tg_send ${event[chat_id]} "\o"
+	fi
+}
+
+tg_start
+```
+
+The above example is all you need to create a basic telegram bot.
+The library is currently very WiP. Please proceed with caution.

tg.sh

@@ -2,8 +2,13 @@
 TELEGRAM_TOKEN=""
 PARSE_MODE="MarkdownV2"
 
+function _escape_text() {
+	sed 's/[][`~!@#$%^&*():;<>.,?\|{}=+-]/\\&/g' <<< "$1"
+}
+
 # tg_send(chat, text, file, type)
-function tg_send_message() {
+function tg_send() {
+	text="$(_escape_text "$2")"
 	if [[ $3 != '' ]]; then
 		local type_snake=$4
 		[[ $4 == '' ]] && local type_snake='document'
@@ -15,16 +20,16 @@ function tg_send_message() {
 		[[ $4 == 'voice' ]] && local type="Voice"
 		[[ $4 == 'video_note' ]] && local type="VideoNote"
 		
-		curl -s
+		curl -s \
 			 -F chat_id=$1 \
-			 -F caption="$2" \
+			 -F caption="$text" \
 			 -F parse_mode=$PARSE_MODE \
 		 	 -F $type_snake=@$3 \
 		 	 "https://api.telegram.org/bot${TELEGRAM_TOKEN}/send${type}"
 	else
-		curl -s
+		curl -s \
 			 -F chat_id=$1 \
-			 -F text="$2" \
+			 -F text="$text" \
 			 -F parse_mode=$PARSE_MODE \
 			 "https://api.telegram.org/bot${TELEGRAM_TOKEN}/sendMessage"
 	fi
@@ -82,10 +87,10 @@ function _on_voice() {
 
 #jq_to_array(jq_expression)
 function _jq_to_array() {
-	declare -ga "_tmp=($(jq -r "$1" | sed 's/[][`~!@#$%^&*():;<>.,?/\|{}=+-]/\\&/g' ))"
+	declare -ga "_tmp=($(jq -r "$1" | sed 's/[][`~!@#$%^&*():;<>.,?\|{}=+-]/\\&/g;'"s@\\\'@\\'@g" ))"
 }
 
-
+function tg_start() {
 	_offset=0
 	while true; do
 		IFS=$'\n'
@@ -189,3 +194,4 @@ while true; do
 		[[ $_update_id != '' ]] && _offset=$((_update_id+1))
 		echo $_offset
 	done
+}