Re: [dev-context] Storing and retrieving two-pass data

Re: [dev-context] Storing and retrieving two-pass data

[luigi scarso]

On Fri, Apr 20, 2012 at 5:30 PM, Marco <netuse@lavabit.com> wrote:
> On 2012-04-19 Wolfgang Schuster <schuster.wolfgang@googlemail.com> wrote:
>
> Hi Wolfgang,
>
> thanks for  the answer. In the first place I also  came up  with a
> similar solution  to yours. But  that's what I meant  by ”manually
> counting” and  wanted to avoid.  Apparently I missed  the obvious,
> there is no special magic needed:
>
> % doesn't seem to be necessary
> % \definedataset [test]
>
> \setdataset [test] [foo] [foo=first]
> \setdataset [test] [foo] [foo=second]
>
> \setdataset [test] [bar] [bar=first]
> \setdataset [test] [bar] [bar=second]
> \setdataset [test] [bar] [bar=third]
>
> \starttext
>        foo is: \datasetvariable{test}{foo}{foo}\crlf
>        bar is: \datasetvariable{test}{bar}{bar}
> \stoptext
>
> Wikified:
> http://wiki.contextgarden.net/System_Macros/Key_Value_Assignments#Two-pass_data
"""
Two-pass data is data that can be accessed before it has been created.
"""
Hm how can  something be read "before* being created ?

(super-luminal neutrino  is not anymore a valid answer ...)
-- 
luigi
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Re: [dev-context] Storing and retrieving two-pass data

[Marco]

On 2012-04-20 luigi scarso <luigi.scarso@gmail.com> wrote:

> """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
> Two-pass data  is data  that can  be accessed  before it  has been
> created.
> """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
> Hm how can something be read "before* being created ?
>
> (super-luminal neutrino is not anymore a valid answer ...)

- Two-pass  data is  data that  can be accessed  before it  has been
- created.

+ Two-pass data is data that is  saved to an external file (the .tuc
+ file)  instead of  being used  directly.  The reason  is that  the
+ information might not be present at that point. One example is the
+ page counter.  It's possible  to print the  total amount  of pages
+ onto the first page.

Otherwise delete the introduction  entirely. Everyone tinkering with
that  knows what  two-pass  data  is, otherwise  he  would just  use
\setvariables, right?


Marco


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Re: [dev-context] Storing and retrieving two-pass data

[luigi scarso]

On Fri, Apr 20, 2012 at 8:32 PM, Marco <netuse@lavabit.com> wrote:
> On 2012-04-20 luigi scarso <luigi.scarso@gmail.com> wrote:
>
>> """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
>> Two-pass data  is data  that can  be accessed  before it  has been
>> created.
>> """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
>> Hm how can something be read "before* being created ?
>>
>> (super-luminal neutrino is not anymore a valid answer ...)
>
> - Two-pass  data is  data that  can be accessed  before it  has been
> - created.
>
> + Two-pass data is data that is  saved to an external file (the .tuc
> + file)  instead of  being used  directly.  The reason  is that  the
> + information might not be present at that point. One example is the
> + page counter.  It's possible  to print the  total amount  of pages
> + onto the first page.
ok x me

> Otherwise delete the introduction  entirely. Everyone tinkering with
> that  knows what  two-pass  data  is, otherwise  he  would just  use
> \setvariables, right?
No no,  it's ok to keep it .

-- 
luigi
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