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<font face="Comic Sans MS">It is not a TeXworks problem, as pointed
ot by Philip Taylor (in XeTeX) and as I controlled in XeLaTeX. <br>
<br>
It could be a problem of your installation of the TeX distribution
or your TeXworks installation.<br>
<br>
By the way, which distribution you are using and which TeXworks?<br>
<br>
--<br>
Alain<br>
<br>
</font>
<div class="moz-cite-prefix">Le 23/09/2015 01:43, David J. Perry a
écrit :<br>
</div>
<blockquote cite="mid:9A125B7C3FD949E88A8E41D52BE39D53@HPstudy"
type="cite">Thank you for the reply, Dennis. I don't think it's a
Windows issue, though, since the characters in question work
correctly in several other Windows programs (Word, Libreoffice,
Notepad) -- that's why I think it's a TeXworks issue. The
characters are in the Old Italic block of Unicode, U+10300 and
higher.
<br>
<br>
Could TeXworks have an issue with characters in the supplementary
planes? I don't normally use any of these scripts except Old
Italic. To test this, I just copied some characters from the
Runic block and pasted them into Notepad -- OK. Then I pasted
them into TeXworks and changed the font to one that I know
supports Runic. This time I got black rectangles. (This was a
different font from the one that I used with Old Italic.)
Furthermore, the .notdef glyph in this font has the shape of a
tall narrow rectange, but I am seeing almost squares. There does
seem to be something going on here.
<br>
<br>
----- Original Message ----- From: "Dennis Pepler"
<a class="moz-txt-link-rfc2396E" href="mailto:dgpepler@dunelm.org.uk"><dgpepler@dunelm.org.uk></a>
<br>
To: <a class="moz-txt-link-rfc2396E" href="mailto:texworks@tug.org"><texworks@tug.org></a>
<br>
Sent: Tuesday, September 22, 2015 11:16 AM
<br>
Subject: Re: [texworks] texworks Digest, Vol 85, Issue 9 -
rectangles
<br>
<br>
<br>
The rectangles are "notdef" characters. They appear when Windows
detects what it considers asa “not defined” character. You may
have a problem with default ignorable code points.
<br>
This comes about because of the concept of"default ignorable code
points". Windows has incorporated andprogressively enhanced its
Unicode support since Windows 2000. Where in thepast legacy
applications running in legacy versions of Windows took
charactersfrom the range 128-159 and displayed them, it appears
that Windows will nowintercept calls for characters in hacked
(customised) fonts and display (ornot!) one of the three variants
stipulated for this scenario:· a zero width character (the screen
is blankwhere a glyph should appear, and characters either side of
the glyph appear tobe adjacent)· a space (i.e. decimal 32) – blank
space on thescreen again.· the rectangle Microsoft refers to
internally as'notdef'
<br>
These are "defaultignorable code points". Copy the "blank spaces"
or the rectangles - whichever - and paste into MS Word. Then check
each character position in turn using the Alt-X trick to reveal
the intended code point value.
<br>
Contact me off-list if you wish.
<br>
Dennis Pepler
<br>
<br>
Sent: Tuesday, 22 September 2015, 11:00
<br>
Subject: texworks Digest, Vol 85, Issue 9
<br>
<br>
1. Re: Plane 1 characters not visible in TeXworks (David J. Perry)
<br>
This is a followup to my post from yesterday. Things get weirder.
<br>
<br>
Earlier tonight I opened TexWorks to do some more work on the file
I
<br>
used yesterday. This time I saw empty rectangles where the Old
Italic
<br>
characters are. This is better than nothing, although I'm still
not
<br>
sure why the characters won't display.
<br>
<br>
A few minutes ago I wanted to make a last-minute correction and
opened
<br>
the file again. Same computer, same fonts, same everything as
earlier
<br>
today, but now we are back to total blanks. ???
<br>
<br>
<br>
<br>
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