[racket-users] repeated code in interactions of scribble

2017-09-22 Thread Jos Koot 
Hi,
What would be the easiest way to avoid duplication of code in interactions 
within a scribble/manual document?
I often place examples in such a document.
In some of them I need the same auxiliary procedures.
How to avoid duplicating them?
The most nice solution would be the appearance of a hyperlink within an 
interaction to a procedure in a previous interaction.
In the docs of Racket I see examples that do refer to procedures defined in 
previous examples.
Hence it must be possible.
I have looked around how it is done in the Racket docs, but it has not become 
clear to me how to acheive my goal.
Thanks, Jos.

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Re: [racket-users] tabular text display

2017-09-22 Thread Tony Garnock-Jones 
Not yet parameterised or extracted for separate use, but:

  raco pkg install tabular


https://github.com/tonyg/racket-tabular/blob/29e91c9475407da4c5bee03abc2e6043693b3ff6/tabular/main.rkt#L681-L765

Example output:

Welcome to Racket v6.10.1.1.
> (require (submod tabular test))
> (require tabular)




> emp
 last-name  |department-id
--
"Rafferty"  |31
"Jones" |33
"Heisenberg"|33
"Robinson"  |34
"Smith" |34
"Williams"  |#f

> dept
department-id|department-name
-
31   |"Sales"
33   |"Engineering"
34   |"Clerical"
35   |"Marketing"

> (table-natural-join emp dept)
 last-name  |department-id|department-name
--
"Rafferty"  |31   |"Sales"
"Jones" |33   |"Engineering"
"Heisenberg"|33   |"Engineering"
"Robinson"  |34   |"Clerical"
"Smith" |34   |"Clerical"

> (->table #:columns '(X Y Z) '(("a" "bcd" "ef") ("gh" "hhu.thnt" "t")))
 X  |Y | Z

"a" |"bcd" |"ef"
"gh"|"hhu.thnt"|"t"




On 09/21/2017 10:03 PM, 'John Clements' via users-redirect wrote:
> Before I go re-inventing the wheel, I want to ask you folks: has anyone 
> written a library that prints out tabular data in a textual format?
> 
> E.G: given 
> 
> ‘((“a” “bcd” “ef”) (“gh” “hhu.thnt” “t”)
> 
> returns
> 
> "
> --
> | a  | bcd  | ef |
> | gh | hhu.thnt | t  |
> ———
> “
> 
> (sorry about the horrible damage that Apple Mail inflicts upon this message.)
> 
> … in the style of postgresql and similar display engines?
> 
> It’s easy to write one of these, but if someone else has done it, it will 
> probably have nice bells and whistles that mine won’t.
> 
> John
> 
> 
> 
> 
> 
> 
> 

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Re: [racket-users] tabular text display

2017-09-22 Thread Laurent 
There's something like that buried in my bazaar package, maybe it's
sufficient for your needs:
https://github.com/Metaxal/bazaar/blob/master/text-table.rkt

The main submodule prints the examples.

It provides two ways to output tables. The first one 'table->string' is the
simplest one and the example outputs:

  a │   b │c │  d │ e │  f │  g │h
——
123 │ 456 │   77 │ 54 │ 1 │ 5646547987 │ 41 │1
——
111 │  22 │  │ 44 │ 5 │  6 │  7 │ 

The second one is more tweakable but more complicated and the example
produces:
╔╦╦╦╗
║i   ║║f1  ║f2  ║
╠╬╬╬╣
╠╬╬╬╣
║a   ║║b   ║c   ║
╠╬╬╬╣
║x   ║║y   ║z   ║
╚╩╩╩╝

If I had time I would merge the two and make it both simple and tweakable...

On Fri, Sep 22, 2017 at 7:07 AM, 'John Clements' via users-redirect <
us...@plt-scheme.org> wrote:

>
> > On Sep 21, 2017, at 16:10, Jay McCarthy  wrote:
> >
> > `raco pkg show` implements something very close that you could turn
> > into a library
> >
> > https://github.com/racket/racket/blob/master/racket/
> collects/pkg/private/show.rkt#L102
>
> Ah! Nice!
>
> John
>
> >
> > On Thu, Sep 21, 2017 at 5:03 PM, 'John Clements' via users-redirect
> >  wrote:
> >> Before I go re-inventing the wheel, I want to ask you folks: has anyone
> written a library that prints out tabular data in a textual format?
> >>
> >> E.G: given
> >>
> >> ‘((“a” “bcd” “ef”) (“gh” “hhu.thnt” “t”)
> >>
> >> returns
> >>
> >> "
> >> --
> >> | a  | bcd  | ef |
> >> | gh | hhu.thnt | t  |
> >> ———
> >> “
> >>
> >> (sorry about the horrible damage that Apple Mail inflicts upon this
> message.)
> >>
> >> … in the style of postgresql and similar display engines?
> >>
> >> It’s easy to write one of these, but if someone else has done it, it
> will probably have nice bells and whistles that mine won’t.
> >>
> >> John
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> --
> >> You received this message because you are subscribed to the Google
> Groups "Racket Users" group.
> >> To unsubscribe from this group and stop receiving emails from it, send
> an email to racket-users+unsubscr...@googlegroups.com.
> >> For more options, visit https://groups.google.com/d/optout.
> >
> >
> >
> > --
> > -=[ Jay McCarthy   http://jeapostrophe.github.io]=-
> > -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=-
> > -=[ Moses 1:33: And worlds without number have I created; ]=-
> >
> > --
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>
>
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Re: [racket-users] tabular text display

2017-09-22 Thread 'John Clements' via users-redirect 

> On Sep 21, 2017, at 16:10, Jay McCarthy  wrote:
> 
> `raco pkg show` implements something very close that you could turn
> into a library
> 
> https://github.com/racket/racket/blob/master/racket/collects/pkg/private/show.rkt#L102

Ah! Nice!

John

> 
> On Thu, Sep 21, 2017 at 5:03 PM, 'John Clements' via users-redirect
>  wrote:
>> Before I go re-inventing the wheel, I want to ask you folks: has anyone 
>> written a library that prints out tabular data in a textual format?
>> 
>> E.G: given
>> 
>> ‘((“a” “bcd” “ef”) (“gh” “hhu.thnt” “t”)
>> 
>> returns
>> 
>> "
>> --
>> | a  | bcd  | ef |
>> | gh | hhu.thnt | t  |
>> ———
>> “
>> 
>> (sorry about the horrible damage that Apple Mail inflicts upon this message.)
>> 
>> … in the style of postgresql and similar display engines?
>> 
>> It’s easy to write one of these, but if someone else has done it, it will 
>> probably have nice bells and whistles that mine won’t.
>> 
>> John
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> --
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users+unsubscr...@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
> 
> 
> 
> -- 
> -=[ Jay McCarthy   http://jeapostrophe.github.io]=-
> -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=-
> -=[ Moses 1:33: And worlds without number have I created; ]=-
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
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