Sun, 22 Aug 2010 16:43:20 +0200 wenzelm removed obsolete Markup_Tree.flatten/filter;
Sun, 22 Aug 2010 16:37:15 +0200 wenzelm Isabelle_Hyperlinks: select relevant information directly from Markup_Tree, without intermediate RefInfo;
Sun, 22 Aug 2010 13:59:47 +0200 wenzelm Document_View.text_area_extension: select relevant information directly from Markup_Tree, without intermediate TypeInfo;
Sun, 22 Aug 2010 13:52:24 +0200 wenzelm tuned signatures;
Sun, 22 Aug 2010 12:54:12 +0200 wenzelm Command.State: accumulate markup reports uniformly;
Fri, 20 Aug 2010 22:35:01 +0200 wenzelm Markup_Tree.select: misc simplification, proper restriction of parent in subtree;
Fri, 20 Aug 2010 22:32:15 +0200 wenzelm added Text.Range.- convenience;
Fri, 20 Aug 2010 20:11:25 +0200 wenzelm tuned signatures;
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