Comment 16 for bug 1698572

I have an idea how to solve the problem simply and with much greater effect: allow users to use theys favorite EXTERNAL text editor to edit formula, i.e. parameter "External math text editor path" in settings needed. It it empty - LibreOffice Math runs, else the LibreOffice (or LibreOffice Math without GUI) run this actions:

- create temp file XXXXX.eqn on trying to fornmula edit/create
- run external text editor with this file as parameter
- read file after editor closing and update formula object as it LibreOffice Math does

It's AUTOMATICALY enables features on user side:

- pair brackets highlighting
- functions highlighting
- more simple editing (change variable name with multicaret editing or vim commands, e.t.c.)
- snippets (not only for math constructions, may be used to natural greek symbols writing - [a]+[Tab] -> α instead of %alpha - more simple reading)
- macroses to text editing in some special cases

It seems to be a great effect for easy implementation - don't you think so?