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MathGroup Archive 2007

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Re: Are comments safe inside notebook cells

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77770] Re: Are comments safe inside notebook cells
  • From: "David Park" <djmpark at comcast.net>
  • Date: Sat, 16 Jun 2007 03:32:33 -0400 (EDT)
  • References: <200706140923.FAA06702@smc.vnet.net> <f4tiv5$fg5$1@smc.vnet.net>

6.0 doesn't make one improvement that would have been useful. Namely it 
throws away the comments when converting between various forms.

Here is an input cell:

f[x_] :=
 Module[{c = 3},
  (* Add c = 3 to x *)
  x + c]

Select the cell and use Ctrl-Shift-I or Ctrl-Shift-T to convert the cell to 
InputForm or TraditionalForm. The comment is lost.


-- 
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/




"Daniel Lichtblau" <danl at wolfram.com> wrote in message 
news:f4tiv5$fg5$1 at smc.vnet.net...
> John Fultz wrote:
>> On Wed, 13 Jun 2007 07:19:10 -0400 (EDT), Andrew Moylan wrote:
>>
>>>Prior to version 6, it has been considered unsafe to place comments (*
>>>like this *) inside e.g. Input cells, because it could lead to
>>>Mathematica corrupting the underlying notebook. Can anyone comment on
>>>whether this is still the case in version 6?
>>
>>
>> Many of these problems have been fixed.  I don't want to make any 
>> absolute
>> guarantees that no such problems exist anymore (it is enormously 
>> difficult and
>> time-consuming to prove a total absence of such bugs), but I can say with
>> considerable certainty that 6.0 is much better than 5.2 in this regard.
>>
>> I believe some problems yet remain when mixing styles and comments, but 
>> the
>> presence and configurability of the syntax coloring features will 
>> hopefully makethis less of an issue.  Aside from that, I think we've 
>> cracked most of these
>> problems, and I'll be curious to hear people's experiences.
>>
>> Sincerely,
>>
>> John Fultz
>> jfultz at wolfram.com
>> User Interface Group
>> Wolfram Research, Inc.
>
>
> Well...since you ask...my experience is that the Mathematica front end
> handles code comments substantially better in version 6 than in past
> releases.
>
> Daniel Lichtblau
> Wolfram Research
>
>
> 



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