I'd like to see support for TypeScript and React added. What can I do to help? Can I assist writing/porting syntax definitions somehow?

Textastic can support asciidoc following the Textmate extension but it is not in the list of supported language, please add it.

See http://www.wuala.com

To detect man-in-the-middle attacks SSH clients are supposed to check the host key of the server, for example by comparing it with a known good key. Should the client neglect to check the server key (or an attacker manage to steal the private key of the server) the connection becomes vulnerable to active man-in-the-middle attacks when using password-based authentication.

Add host key checking to Textastic.

I am wondering whether it would be possible to use the app Anyfont to add custom fonts on iOS that Textastic could use. According to the Anyfont app description: "With AnyFont you can install additional fonts on your device which can then be used by other apps which make use of the device's font book."

https://itunes.apple.com/us/app/anyfont/id821560738?mt=8

Does Textastic use the device's font book?

It would be really usefull to highlight every occurrences of the currently selected word (a la Eclispe for example).

I would love to see Multicursor functionality similar to the one available in Sublime, Atom or VSCode. They improve productivity a lot and save a lot of double/triple typing or search and replace processes.

The growing adoption of Textastic brings new opportunities for applications in general writing.

The auto-correction option in Textastic allows the user to use the iOS spelling suggestions above the embedded keyboard, but greater functionality can be leveraged from the iOS spelling checker.

The idea: include the red underlined mark from the iOS spelling checker into the text editor when the auto-correct option is activated (or with an additional setting).

The benefit: Textastic would significantly enhance the functionality for users of plain text, latex files, taskpaper files, among others.