[XeTeX] Trouble with displaying word containing 3 conjunct consonants in Devanagari

[Benct Philip Jonsson]

Excellent!  Now I only need better eyesight...

/BP

Guido Herzog skrev:
> Test  the following code
> 
> %!TEX TS-program =  xetex
> %!TEX encoding   =  UTF-8 Unicode
> 
> % glyphlist.tex -- to find glyphs and their index
> 
> \parindent 0pt
> 
>  \font\test="Chandas"    at 14pt
> %\font\test="Charis SIL" at 14pt
> 
> \newcount\charcountA \charcountA 0
> 
> \newcount\charcountB \charcountB \XeTeXcountglyphs\test \advance\charcountB -1
> \newcount\charcountC \charcountC 0
> 
> \def\ystrut {\vrule height 15.0pt depth 5.5pt width 0pt}
> 
> \advance\vsize 4\baselineskip
> 
> \loop
>  \advance\charcountC 1
>  \leavevmode
>  \hbox{\hbox to 10mm{\hss\number\charcountA\quad}%
>        \hbox to 10mm{\test\XeTeXglyph\charcountA\ystrut\hss}%
>       }%
>  \ifnum\charcountC = 8 \endgraf          \charcountC 0 \fi
>  \ifnum\charcountA < \charcountB \advance\charcountA 1
> \repeat
> 
> \bye
> 
>> Date: Mon, 21 Sep 2009 15:22:41 +0200
>> From: bpj at melroch.se
>> To: xetex at tug.org
>> Subject: Re: [XeTeX] Trouble with displaying word containing 3 conjunct	consonants in Devanagari
>>
>> Ravi Parimi skrev:
>>> On Sun, Sep 20, 2009 at 11:30 AM, Benct Philip Jonsson <bpj at melroch.se> wrote:
>>>> Ravi Parimi skrev:
>>>>> Hi,
>>>>>
>>>>> I'm using xelatex Version 3.1415926-2.2-0.999.6 (Web2C 7.5.7) on Max
>>>>> OSX 10.5.8 with Devanagari MT.
>>>>>
>>>>> There's a word that contains the following sequence of letters: ङ् ख्
>>>>> ये (which is zf + Kf + ye using the devanagri qwerty keys). When run
>>>>> through xelatex, I see that the final य (y) doesn't merge into the
>>>>> previous two letters. Instead, I see a halant character intervening
>>>>> the first two letters (ङ् + ख्) and the final letter (य).
>>>> Are you sure the conjunct exists in the font?
>>>> It looks like a conjunct which would require
>>>> its own glyph.
>>> Is there a way to figure out (other than creating the .tex and
>>> processing it with xelatex) what level of conjuncts are supported by
>>> the font I'm using (Devanagari MT). Also, would you know if there are
>>> other fonts which support a wider variety of glyphs, conjuncts etc.
>>> for the Mac?
>>>
>>> Thanks
>>>
>> Just test with a number of other fonts and see if you get
>> the conjunct in them.  As far as I'm aware any TTF/OTF
>> font should work on the Mac (I'm on Ubuntu).  A good place to
>> start would be
>>
>> <http://www.wazu.jp/gallery/Fonts_Devanagari.html>
>>
>> Chandas while not being the most beautiful font produces the
>> desired conjunct without a glitch!
>>
>> As someone else said XeTeX lets you get any glyph in a font
>> with a \XeTeXglyph command.
>>
>> The trouble is to find out what glyph exist and what glyph index 
>> number they have.  This script is helpful:
>>
>> %!TEX TS-program =  xetex
>> %!TEX encoding =  UTF-8 Unicode
>>
>> % glyphlist.tex -- to find glyphs and their index
>>
>> \font\test="Chandas" at 14pt
>>
>> \newcount\charcount \charcount0
>>
>> \raggedright
>>
>> \loop\number\charcount
>> \hbox{\test\XeTeXglyph\charcount} % \hfill\break % Uncomment for 
>> more easily scanned list!
>>   \ifnum\charcount<4450 \advance\charcount1 \repeat
>> % First set this number to something very high and
>> % run the file with xetex.  You will get an error
>> %
>> %	** ERROR ** Invalid glyph index (gid <number>)
>> %
>> % If you don't get this error message there are more
>> % glyphs in the font than your trial number; increase
>> % the number and try again!
>> %
>> % Now set the number to the number in the error
>> % message -1 and xetex it again. You will get a
>> % compact list of all glyphs in the font.
>>
>> \bye
>>
>> You can just hope that the glyphs in a font come in some
>> logical order, since the list can be hard to scan.
>> For example I couldn't find the ;nkhy glyph in Chandas
>> although I evidently could evoke it with ङ्ख्य in XeLaTeX!
>>
>> Once you find a glyph something like \def\ipaB{\XeTeXglyph2886}
>> (To get the IPA-style beta in Junicode) is helpful.
>>
>> /BP 8^)>
>> -- 
>> Benct Philip Jonsson -- melroch atte melroch dotte se
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>   "C'est en vain que nos Josués littéraires crient
>>   à la langue de s'arrêter; les langues ni le soleil
>>   ne s'arrêtent plus. Le jour où elles se *fixent*,
>>   c'est qu'elles meurent."           (Victor Hugo)
>>
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