<div dir="ltr">Hi<br><br>I recieved this email from one of the users and he believes that is a bug.<br><br>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br clear="all">Dear Mr. Khalighi<br><br> This is Massoud Babaie-Zadeh. I was one of the people active in preparing FarsiTeX.<br>
<br>
First of all, thank you very much for your efforts in preparing
XePersian package. I hope that with your efforts, we will have finally
a complete Persian typesetting system compatible with all latex
packages.<br><br> I send you this email to inform you about
(according me) a very important bug in XePersian. This bug existed also
in the very early versions of FarsiTeX. I think that correcting it in
XePersian should not be difficult for you, and needs just that someone
signals the existence of this bug.<br><br> This bug is related to
the difference between Persian and English in adjusting the end of
lines. In English, for stretching a line, some spaces (glue) are added
between the words. In Persian, however, some letters inside the words
are stretched (what is called in Persian calligraphy a "KESHIDEH").
Adding spaces between words to adjust a Persian line produces less
beautiful documents (and I guess that for this reason you have disabled
it in XePersian). However, the "Keshideh" system does not exist in
XePersian. (In MS-Word this system existed even in its very old
versions on Win3.1, and without implementing it in FarsiTeX, the output
was less beautiful even than those old MS-Word outputs).<br><br>
As a demonstration, please find attached 2 examples prepared by
FarsiTeX and XePersian. For FarsiTeX, I prefer that you look at the .ps
output, because the pdf version is not very well displayed, but in .ps
and also in print it has no problem.<br><br> Just as a note: I don't
remember, but I think that tex can itself support such a thing
(changing its default glue system), and adding some kind of `rule'
between the letters of the words. In first implementation FarsiTeX, it
had been used. But since such a system does not work for outlined fonts
("Font-hayeh too-khaali"), in the late versions of FarsiTeX the team
has added a special character to each font for doing this task. Since
you use standard fonts, maybe the second one is not very easy (I am not
sure however), but even adding the first system solves the problem in
99% of cases. I think that for more details, it would be very nice if
you contact Roozbeh Pournader (I think also that some part of this job
is done in Farsitex during the conversion from ftx to tex, but I don't
know how much it is essential).<br><br>
Another note: When you see some discontinuity between the letters in
the pdf (or dvi) of the output of FarsiTeX, it is not a bug: it is in
fact this stretching character which has been added between almost any
two letters of the words to adjust the line.<br><br>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br><br>So is this the XePersian's bug or it has got to be fixed inside the xetex engine?<br><br><br>-- <br>
VK<br>
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