It has been requested on the mailing list that this plugin be updated a little bit. Here are the suggestions:
The "<" one is what was actually asked for and would be the easiest to implement.
So the option pane would look like:
Autocomplete:
[X] parens - (
[X] braces -
[X brackets - {
[X] apostrophe - '
[X] quotes - "
[ ] lessthan - <
[X] Enable autopaired characters on startup
[X] Don't autopair apostrophe following a letter
[X] Remove autopair characters on backspace
[X] Autopair characters around selections
The items that are [X] respresent the current default for the plugin and should remain the current default.
Ollie Rutherfurd is no longer developing jEdit, so someone else will need to volunteer.
The "custom" textfield could (maybe) be done in such a way that perl custom brackets are supported.
In perl the "m" and "s" regex operators can accept any character as delimiter. So if the custom field would split the entered text on whitespace and take each pair as the "brackets" to use, one could for example use:
To have auto brackets for stuff like:
…just thinking loud… ;)