Hi,

I'd like to report a bug that has been around for a while (R 2.11.1 GUI 1.34 Leopard build 64-bit (5589), but this was already in earlier versions). 

When using the "match braces/quotes" feature of the built in editor, it messes up the undo function to the point that the code becomes completely garbled when undoing and redoing typing. This can be easily replicated by typing for instance x(y)) and then cmd-z. When repeating this a few times, the effect accumulates and gets worse. I have lost quite some code because of this.

On a related note, it would be nice to have an option of temporarily disabling the matching braces function (with a key combination maybe), if one needs to type braces around some existing code for instance. This is not part of the bug, but it would be a handy feature.

Kind regards,
Claude

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Claude Flener
Researcher
Department of Geography
20014 University of Turku
Finland

http://sci.utu.fi/fluvial
http://www.claudeflener.com
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