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
