On an iPad it is very easy to inadvertently add an unintended character from the keyboard into your code when scrolling through it debugging etc. When this happens and you miss it or are unaware it happened there is a ton of time wasted trying to find the aberrant character that has stopped your program running in its tracks. This can be solved by placing a Read Only 'switch' that is easily accessible at the top of the tool bar so you can switch edit ability and read only on and off as required, preventing unintended typos or character additions that mess up your program. This having happened to me many times causes me to write this urgent request. Having said this let me also say Textastic is Fantastic...coding on an iPad could almost not be done without it. Thanks for a great editor!
Customer support service by UserEcho