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Re: Bug of NotebookRead

  • To: mathgroup at smc.vnet.net
  • Subject: [mg100189] Re: Bug of NotebookRead
  • From: dbreiss at gmail.com
  • Date: Wed, 27 May 2009 04:09:34 -0400 (EDT)
  • References: <gvdr93$757$1@smc.vnet.net>

P.S.  I have added your observation to the bug report that I
originally filed with Wolfram.  So this is all in the system...

Best regards,

--David



On May 25, 6:18 am, Hannes Kessler <HannesKess... at hushmail.com> wrote:
> Hello,
>
> cell tags could be very useful to extract quickly selected information
> from notebooks, see David Reiss presentationhttp://scientificarts.com/wor=
klife/conference2008.html
>
> But be aware of the following bug of NotebookRead applied to tagged
> cells in a structured notebook with sections and subsections:
> The section cell and the input / output cells in the example are
> tagged, but not the subsection cell. The resulting notebook contains
> only the section cell. The tagged input/ouput cells are lost as a
> consequence of the read notebook data containing a wrong CellGroupData
> [[{Cell[..]},Cell[..]] instead of a correct CellGroupData[[{Cell
> [..],Cell[..]}]. This could be fixed by a corresponding replacement
> rule. But the second input/output cell is missing completely and
> cannot be recovered at all.
>
> notebook1 = Notebook[{
>     Cell["Section 1", "Section", CellTags -> "zzz"],
>     Cell["Subsection 1 (no tag)", "Subsection"],
>     Cell[BoxData[RowBox[{"x", "=", "1"}]], "Input", CellTags ->
> "zzz"],
>     Cell[BoxData["1"], "Output", CellTags -> "zzz"],
>     Cell[BoxData[RowBox[{"y", "=", "2"}]], "Input", CellTags ->
> "zzz"],
>     Cell[BoxData["2"], "Output", CellTags -> "zzz"]
>     }];
> notebookObject = NotebookPut[notebook1, WindowTitle -> "Notebook 1"];
> NotebookFind[notebookObject, "zzz", All, CellTags];
> notebookData = NotebookRead[notebookObject]
> notebook2 = Notebook[Flatten[{notebookData}]];
> NotebookPut[notebook2, WindowTitle -> "Notebook 2"];
>
> Did anybody encounter this problem, are there workarounds? I am new to
> the tagging approach and a bit frustrated as this was my very first
> experience with it.
>
> I am using Mathematica 7.0.1 on Windows XP
>
> Best regards,
> Hannes Kessler



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