Re: [racket-users] Writing a blank to a file

2016-03-02 Thread Matthias Felleisen 

(with-output-to-string #; "marco.txt" (lambda () (printf " ")))

(Replace 'string' with 'file' and delete the comment char #;)


On Mar 2, 2016, at 1:12 PM, Marco Morazan  wrote:

> 
> Hi All,
> 
> I seem to recall I knew how to do this once, but can't recall the details.
> 
> How do we write a blank to a text file without the parallel bars appearing?
> 
> So, (write '| | outfile) produces | | in the file. I want to eliminate the 
> vertical bars.
> 
> Thanks,
> 
> Marco
> 
> -- 
> 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.

-- 
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.

Re: [racket-users] Writing a blank to a file

2016-03-02 Thread Neil Van Dyke 

Marco Morazan wrote on 03/02/2016 01:12 PM:

How do we write a blank to a text file without the parallel bars appearing?

So, (write '| | outfile) produces | | in the file. I want to eliminate the 
vertical bars.


That quote and vertical bars are creating an unusual symbol.  Do you 
instead want to write a string or character?


(write-string " " outfile)
(display " " outfile)
(write-char #\space outfile)
(display #\space outfile)

Neil V.

--
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.

Re: [racket-users] Writing a blank to a file

2016-03-02 Thread Marco Morazan 
On Wednesday, March 2, 2016 at 1:15:30 PM UTC-5, Stephen Chang wrote:
> Use display? or set read-accept-bar-quote to #f

Thanks! Works like a charm! :-)

Marco

> 
> On Wed, Mar 2, 2016 at 1:12 PM, Marco Morazan  wrote:
> >
> > Hi All,
> >
> > I seem to recall I knew how to do this once, but can't recall the details.
> >
> > How do we write a blank to a text file without the parallel bars appearing?
> >
> > So, (write '| | outfile) produces | | in the file. I want to eliminate the 
> > vertical bars.
> >
> > Thanks,
> >
> > Marco
> >
> > --
> > 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.

-- 
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.

Re: [racket-users] Writing a blank to a file

2016-03-02 Thread Leif Andersen 
To clarify what Stephen wrote there a bit, you should probably want to
only use `display` here. To a first approximation, `write` is used for
writing out values that you can read back in with `read`. (This
doesn't work in general and you actually want to make things
marshlable if that is your goal, but that's the general idea anyway.)

`display` on the other hand, is used for writing out arbitrary text to
`current-output-port`. For this reason, I tend to like `printf` and
`format` more than `display`.

~Leif Andersen


On Wed, Mar 2, 2016 at 1:15 PM, Stephen Chang  wrote:
> Use display? or set read-accept-bar-quote to #f
>
> On Wed, Mar 2, 2016 at 1:12 PM, Marco Morazan  wrote:
>>
>> Hi All,
>>
>> I seem to recall I knew how to do this once, but can't recall the details.
>>
>> How do we write a blank to a text file without the parallel bars appearing?
>>
>> So, (write '| | outfile) produces | | in the file. I want to eliminate the 
>> vertical bars.
>>
>> Thanks,
>>
>> Marco
>>
>> --
>> 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.
>
> --
> 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.

-- 
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.

Re: [racket-users] Writing a blank to a file

2016-03-02 Thread Stephen Chang 
Use display? or set read-accept-bar-quote to #f

On Wed, Mar 2, 2016 at 1:12 PM, Marco Morazan  wrote:
>
> Hi All,
>
> I seem to recall I knew how to do this once, but can't recall the details.
>
> How do we write a blank to a text file without the parallel bars appearing?
>
> So, (write '| | outfile) produces | | in the file. I want to eliminate the 
> vertical bars.
>
> Thanks,
>
> Marco
>
> --
> 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.

-- 
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.

[racket-users] Writing a blank to a file

2016-03-02 Thread Marco Morazan 

Hi All,

I seem to recall I knew how to do this once, but can't recall the details.

How do we write a blank to a text file without the parallel bars appearing?

So, (write '| | outfile) produces | | in the file. I want to eliminate the 
vertical bars.

Thanks,

Marco

-- 
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.