I need a desktop (either Windows or ideally AIR based, so it runs on both Mac and Windows) that
- has one window in which the user pastes a number (could be several thousand) of lines of text
- an output window in which all lines of text are concatenated into one long line of text (no linebreaks) plus there is some text before and after each original line: they need to be able to select all of this output text and copy it so they can paste it elsewhere.
The text at the beginning and the end of each line is always the same (and also the same for each line, apart from the very first and very last line), so can be programmed in.
additionally, the user can also load a file containing the original lines of text (could be .txt or .csv) and they can also export the result as .txt or .csv)