marijnh/CodeMirror2 — pull request #661 by Carreau (2012-07-25 12:34:57+00:00)
Title: add space deletion to previous tabstop behavior

this allows to bind backspace to delete space until previous tabstop.
is deleting cm.tabSize space is not possible, it falls back to deleting
1 character, or delete selection if smth is selected.

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hi,

I was not able to achieve the behavior I wanted only by configuring codemirror with availlable options, so I patched it and propose the change upstream.
Basically I want to indent with (4) space, and delete to the previous n*tabSize when possible, otherwise fall back to del 1 character.

Thanks.
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Matthias