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MathGroup Archive 2006

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RE: Re: Re: Change CellTags with FrontEnd

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68839] RE: [mg68777] Re: [mg68698] Re: Change CellTags with FrontEnd
  • From: "Ingolf Dahl" <ingolf.dahl at telia.com>
  • Date: Mon, 21 Aug 2006 03:27:33 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
The following three commands seem to be equivalent:

LinkWrite[$ParentLink,
FrontEnd`SelectionAddCellTags[nb, "newtag"]] 

MathLink`CallFrontEnd[FrontEnd`SelectionAddCellTags[nb, "newtag"]]

FrontEndExecute[FrontEnd`SelectionAddCellTags[nb, "newtag"]]

Likewise, the following three commands seem to be equivalent with each
other:

LinkWrite[$ParentLink,
FrontEnd`CellInformation[nb]];LinkRead[$ParentLink]

MathLink`CallFrontEnd[FrontEnd`CellInformation[nb]]

FrontEndExecute[FrontEnd`CellInformation[nb]]

(FrontEnd` before CellInformation can be omitted.)
The version with LinkWrite is the only variant that I have seen published
anywhere.
Is the MathLink form to prefer before the FrontEndExecute? Is there any
difference (e.g. in buttons) between the commands? FrontEndExecute is a few
letters shorter to write, but will it become obsolete?

Best regards

Ingolf Dahl
Sweden

> -----Original Message-----
> From: John Fultz [mailto:jfultz at wolfram.com] 
To: mathgroup at smc.vnet.net
> Subject: [mg68839] [mg68777] Re: [mg68698] Re: Change CellTags with FrontEnd
> 
> Here's what you want...
> 
> LinkWrite[$ParentLink,
> FrontEnd`SelectionAddCellTags[FrontEnd`InputNotebook[], "newtag"]]
> 
> That last argument can be a list as well as a single string, 
> and there's a complementary SelectionRemoveCellTags[] 
> command, too, which accepts the same syntax.  Sorry for not 
> sending this out in response to your first request, which I 
> saw, but hit me at a particularly busy time and slipped 
> through the cracks.
> 
> And, while we're talking about notebook programming, let me 
> add one more important point.  In 5.2 (and future) front 
> ends, the preferred incantation is no longer LinkWrite, but 
> MathLink`CallFrontEnd.  In this case, for example, it would be...
> 
> MathLink`CallFrontEnd[FrontEnd`SelectionAddCellTags[nb, "newtag"]]
> 
> It is generally true that anyplace where LinkWrite of 
> $ParentLink used to be used to communicate with the FE, 
> MathLink`CallFrontEnd is recommended in
> 5.2 and will be required in all future versions of Mathematica.
> 
> Sincerely,
> 
> John Fultz
> jfultz at wolfram.com
> User Interface Group
> Wolfram Research, Inc.
> 
> 
> On Thu, 17 Aug 2006 04:17:58 -0400 (EDT), Markus Huber wrote:
> > Unfortunately this is not what I was looking for.
> >
> > But I found a possibility how to do it with the FrontEnd:
> >
> > SetOptions[NotebookSelection@InputNotebook[], CellTags -> ...];
> >
> > One problem still remains: You can only set CellTags this way (and 
> > overwrite existing ones), not add CellTags (that is what I 
> was looking 
> > for).
> >
> > Markus Huber
> >
> > David Park schrieb:
> >
> >> Ingolf Dahl has an extensive package for manipulating cell 
> tags. It 
> >> is available at
> >>
> >> And a new version of my package is available at 
> >> http://web.telia.com/~u31815170/Mathematica/
> >>
> >> and his email address for more information is 
> ingolf.dahl at telia.com.
> >>
> >> David Park
> >> djmp at earthlink.net
> >> http://home.earthlink.net/~djmp/
> >>
> >> From: mqh [mailto:mhla at gmx.at]
To: mathgroup at smc.vnet.net
> >
> >>
> >> I'd like to change the celltags of several cells that are not 
> >> adjacent via a program (not via the menu). Doing this for 
> one cell is 
> >> no
> >> problem: I use a rule like
> >>
> >> {Cell[a_, st_String, b___, CellTags -> tgs_, c___] :> 
> Cell[a, st, b, 
> >> CellTags -> Union[Flatten[{tgs, newtag}]], c], Cell[a_, st_String, 
> >> b___ /; FreeQ[{b}, CellTags, \[Infinity]]] :> Cell[a, st, 
> b, CellTags 
> >> -> settag]}.
> >>
> >> The problem arises now if several cells are selected: I 
> read them in, 
> >> apply the rule and paste them back, but the new cells 
> appear now at 
> >> the wrong place. One can simply imitate this behaviour of M by 
> >> selecting several not adjacent cells and doing copy and paste: One 
> >> will see that the cells are pasted at the wrong place.
> >> Doing the same thing via the menu entry Find > Add/Remove 
> Cell Tags 
> >> this is no problem at all. So it appears to me that a 
> solution using 
> >> the FrontEnd would be the best thing. But: I can find no 
> >> documentation about a FrontEndToken like "AddCellTags". The best 
> >> thing I can do is use
> >>
> >> FrontEndTokenExecute[CellTagsEditDialog]
> >>
> >> to open the dialog to change CellTags, but this is not what I want.
> >> So can anybody tell me if there is an additional 
> FrontEndToken that 
> >> can do what I want or has another idea? It should work for 
> M4.0 - M5.2.
> 
> 



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