Does this happen every time? Unfortunately, I can't reproduce it on my device. 

Currently there isn't. Would you like to get a http:// link after you copy it on an FTP server? How is the app supposed to know which directory on the server corresponds to which public url?

Hello,

you can add your own themes to Textastic: http://www.textasticapp.com/v4/manual/lessons/How_can_I_add_my_own_syntax_definitions__themes_and_templates.html

I've found an Xcode theme at https://github.com/earcar/xcode-default.tmtheme

Sounds like a good idea. I'll consider it.

I have seen two similar App Store reviews from people with Chinese user names. So, I assume that it has something to do with Chinese settings.

Can you please tell me which language and keyboard settings in the iOS settings you choose? A screenshot of both might help, as I can't read Chinese.

You could also try to switch to another language like English and tell me if this fixes the crash.

Hello,

the latest version on the App Store actually is Textastic 4.1. Can you please send me the crash report? See http://feedback.textasticapp.com/topic/48133-how-do-i-send-crash-reports/

Hello,

you can add your own syntax definitions to Textastic using TextMate bundles.

There seems to be a TextMate bundle for Lasso at https://github.com/bfad/Lasso-TM-Bundle

Here's how to install it in Textastic:

iPad: http://www.textasticapp.com/v4/manual/lessons/How_can_I_add_my_own_syntax_definitions__themes_and_templates.html

iPhone: http://www.textasticapp.com/iphone/manual/lessons/How_can_I_add_my_own_syntax_definitions__themes_and_templates.html

The next update will work on 5.0.