Tickle Text supports editing of a wide variety of text files or scripts, including .txt, .py, .tcl, .css, .html, .c, .sh, .pl, .xml, .tmx, LaTeX, etc., of course, like any other text editor (I wrote this document in LaTeX using Tickle Text!).
Tickle Text has all kinds of groOvy and useful features.
Tickle Text is "themeable", in that the colors of its interface are completely configurable.
Tickle Text includes an integrated dictionary, calculator and a calendar.
It will call an xterm or wish terminal. It shows line numbers, can insert a date, count your words, goto line #,
insert special characters, open multiple windows, open a browser (for checking html files while editing them), export to PDF,
both from any text file, AND from .tex (LaTeX) files (like this present document, for example).