I guess they are issues. You have to select a font with all glyphs for latin-1 
first. Try unifont or some apl fonts if they are available on mac. 

Display control characters or illegal utf8 characters is another issue.

How j ide interpret and display box characters is yet another issue.

29.03.2014, в 10:53, Pascal Jasmin <[email protected]> написал(а):

> j7 (gtk) displays octal for binary data it decides that it can't print.  J8 
> and jhs shows a pretty glyph in the same font, but its the same glyph for 
> every char > 127.
> 
> The proposal is why not display them as 
>  u: 4 64 $ a.
> 
> 
> ┌┬┐├┼┤└┴┘│─  I assume are special coded already?
> 
> 
> 
> ----- Original Message -----
> From: bill lam <[email protected]>
> To: "[email protected]" <[email protected]>
> Cc: 
> Sent: Friday, March 28, 2014 8:16:14 PM
> Subject: Re: [Jprogramming] font with extended ascii? -display binary data
> 
> If you meant display them as octal like \123 then the ide must also escape 
> all \ otherwise you cannot distinguish between textual and binary data, 
> meaning the sum scan would displayed as
> 
> +/\\ i.5
> 
> 29.03.2014, в 0:11, Pascal Jasmin <[email protected]> написал(а):
> 
>> J stores the full 8 bits of binary data.  There very well may be a great 
>> reason not to provide a friendly display for binary data, I just don't see 
>> it yet.
>> 
>> On another note, there seems to be a case for an extra dyad form for u: .  
>> Say 9 u:
>> 
>> It would behave as monad u: does for char and wchar, but for any other 
>> argument type (including integers) would return ] y.  I understand it not 
>> being a priority since this can be implemented by users with 3!:0 checking.
>> 
>> 
>> ----- Original Message -----
>> From: Raul Miller <[email protected]>
>> To: Programming forum <[email protected]>
>> Cc: 
>> Sent: Friday, March 28, 2014 10:22:18 AM
>> Subject: Re: [Jprogramming] font with extended ascii? -display binary data
>> 
>> "Normal ascii" occupies only 7 bits, so it's 128{.a. (or u: i.128).
>> 
>> The problems created by what to do with the other half of they byte (along
>> with our love/hate relationship with standards and professionalism) have a
>> lot to do with why we are using ascii instead of ebcdic.
>> 
>> Thanks,
>> 
>> -- 
>> Raul
>> 
>> 
>> 
>> On Fri, Mar 28, 2014 at 11:04 AM, Pascal Jasmin 
>> <[email protected]>wrote:
>> 
>>> thank you Raul,
>>> 
>>> On further thought, it appears to be impractical to use larger than base
>>> 128 for binary encoding.
>>> 
>>> A friendlier display of my numeric list compression routine is possible
>>> though u:
>>> 
>>> BASE128 =: BASE64 , a.{~ 192 + i.64
>>> 
>>> 
>>>      u:  compresslistnum   1000000239482039420348x 2 248 +"1 i. 3 3
>>> bN5o8ÒÁDâïA BÀ ýA
>>> bN5o8ÒÁDâïà DA þÀ
>>> bN5o8ÒÁDâðÀ EÀ AÀA
>>> 
>>> 
>>> 
>>> There is a formatting problem displaying boxed unicode data.  Is there any
>>> chance that normal ascii could display as above for codes 192+? or boxed
>>> unicode could line up?
>>> 
>>> and
>>> 
>>>     BASE128 i. 'bN5o8ÒÁDâðÀ EÀ AÀA'
>>> 27 13 57 40 60 67 128 67 128 3 67 128 67 128 67 128 128 4 67 128 128 0 67
>>> 128 0
>>> 
>>> basically show that all of the extended characters are not found in
>>> BASE128 but
>>> 
>>>      a. i. 'bN5o8ÒÁDâðÀ EÀ AÀA'
>>> 98 78 53 111 56 195 146 195 129 68 195 162 195 176 195 128 32 69 195 128
>>> 32 65 195 128 65
>>> 
>>> shows that 2 characters are embedded for extended chars (195 x), and
>>> intermixed with single codes.
>>> 
>>> Worth noting is that the extended characters display in my html email
>>> client.
>>> 
>>> 
>>> 
>>> 
>>> ----- Original Message -----
>>> From: Raul Miller <[email protected]>
>>> To: Programming forum <[email protected]>
>>> Cc:
>>> Sent: Friday, March 28, 2014 9:07:15 AM
>>> Subject: Re: [Jprogramming] font with extended ascii? -display binary data
>>> 
>>> There's http://www.unicode.org/charts/PDF/U0080.pdf
>>> 
>>> But it's not an informal page.
>>> 
>>> 240-248 corresponds to the rightmost column (the one with the caption 00F),
>>> and the top half of that column (00F0 through 00F8 in the small print at
>>> the bottom of each cell).
>>> 
>>> Thanks,
>>> 
>>> --
>>> Raul
>>> 
>>> 
>>> 
>>> On Fri, Mar 28, 2014 at 9:48 AM, Pascal Jasmin <[email protected]
>>>> wrote:
>>> 
>>>> Jqt uses menlo as default font.  Printing binary data over 127 all
>>> produce
>>>> identical "not found" glyphs.  Is it a font issue? and is there a  fixed
>>>> width font that would display extended ascii as this list (or as much of
>>> it
>>>> as possible)? iso-latin 1?  Is there some informal code page that shows a
>>>> printable character for every (or 240-248) binary value(s)?
>>>> 
>>>> http://www.danshort.com/ASCIImap/
>>>> 
>>>> 
>>>> A related question is wd edit will not display the prettier line drawing
>>>> (box character set) symbols even when the font is set to Menlo.  Is
>>> there a
>>>> workaround for that?
>>>> ----------------------------------------------------------------------
>>>> For information about J forums see http://www.jsoftware.com/forums.htm
> 
>> 
>>> 
>>>> 
>>> ----------------------------------------------------------------------
>>> For information about J forums see http://www.jsoftware.com/forums.htm
>>> 
>>> ----------------------------------------------------------------------
>>> For information about J forums see http://www.jsoftware.com/forums.htm
>>> 
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
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