Sat, 07 Aug 2010 21:03:06 +0200 wenzelm simplified type XML.tree: embed Markup.T directly, avoid slightly odd triple;
Sat, 07 Aug 2010 19:52:14 +0200 wenzelm concentrate structural document notions in document.scala;
Sat, 07 Aug 2010 17:24:46 +0200 wenzelm maintain editor history independently of Swing thread, which is potentially a bottle-neck or might be unavailable (e.g. in batch mode);
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