Thank you! Yes, that does explain almost everything. I'm pretty sure I read that section, but I obviously completely failed to understood it, possibly because I didn't understand that "svara" didn't refer to vowels. (Ghu only knows what I made of the passage.)
There's still the problem of the combination of visarga plus accent: in the examples, the accents should be centered on the ta, not on the visarga, yes? I don't know if that's a problem with the shaping engine or with the font, though. I'll update the sourceforge ticket and the sample files. Best wishes, David. P.S. I just noticed that my comments about the accents and Devanagari digits is out-of-date: somehow I didn't notice that they work in the latest version of XeTeX. I think the udatta should be better centered, but that looks like a problem with the font. > From: ShreeDevi Kumar <shreesh...@gmail.com> > Date: Sun, 24 May 2015 11:00:09 +0530 > > Please see http://www.unicode.org/versions/Unicode7.0.0/ch12.pdf > Page 443 and 444 > Rule R10 > > " > Modifier Mark Rules. > > In addition to vowel signs, three other types of combining marks may be > applied to a component of an orthographic syllable or to the syllable as a > whole: nukta, bindus, and svaras. > > R10 > > Other modifying marks, in particular bindus and svaras, apply to the > orthographic syllable as a whole and should follow (in the memory > representation) all other characters that constitute the syllable.* The > bindus should follow any vowel signs, and the svaras should come last.* > " > > As per the above, "\V{Violet} marks a semantically invalid reordering of > the Unicode characters that happens to produce acceptable output." is > actually the correct ordering of unicode characters: > > ta̍ṃ & ta + udatta + anusvara & \R{\1त॑ं}\\ > > > taṃ̍ & ta + anusvara + udatta & \V{\1तं॑} \\ > > > ta̱ṃ & ta + anudatta + anusvara & \R{\1त॒ं}\\ > > > taṃ̱ & ta + anusvara + anudatta & \V{\1तं॒} \\[\medskipamount] > > > ta̍m̐ & ta + udatta + candrabindu & \R{\1त॑ँ}\\ > > > tam̐̍ & ta + candrabindu + udatta & \V{\1तँ॑} \\ > > > ta̱m̐ & ta + anudatta + candrabindu & \R{\1त॒ँ}\\ > > > tam̱̐ & ta + candrabindu + anudatta & \V{\1तँ॒} \\[\medskipamount] > > > ta̍ḥ & ta + udatta + visarga & \R{\1त॑ः}\\ > > > taḥ̍ & ta + visarga + udatta & \B{\1तः॑} \\ > > > ta̱ḥ & ta + anudatta + visarga & \R{\1त॒ः}\\ > > > taḥ̱ & ta + visarga + anudatta & \B{\1तः॒} \\[\medskipamount] > > > > > ShreeDevi > ____________________________________________________________ > भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com > > On Fri, May 22, 2015 at 7:44 PM, David M. Jones <d...@dmj.ams.org> wrote: > > > I posted this to the XeTeX sourceforge tracker a couple of weeks ago, > > and it was suggested that I also mention it here. The sourceforge > > ticket is > > > > https://sourceforge.net/p/xetex/bugs/111/ > > > > and the zip file is > > > > > > https://sourceforge.net/p/xetex/bugs/111/attachment/xetex-indic-bug.zip > > > > Cheers, > > David. > > > > P.S. There's actually a third class of bug that is clearly visible in > > the table at the top of my document, but which I didn't mention > > explicitly: XeTeX won't typeset one of the Devanagari combining > > characters in isolation without adding a prothetic dotted circle > > (U+25CC). > > > > =========================================================================== > > > > On a lark, I've been experimenting with typesetting Vedic Sanskrit, > > specifically verses from the Ṛg-Veda, using the Murty Hindi font from > > Tiro Typeworks. So far, XeTeX works beautifully, with two exceptions > > involving the Vedic udatta and anudatta accent marks: > > > > a) They don't attach properly to the Devanagari digits 1 and 3, and > > > > b) They don't combine properly with the candrabindu, anusvara, and > > visarga signs. > > > > luaTeX does render these correctly, so it doesn't appear to be a > > problem with the font itself. > > > > I've included a zip file with a test file and sample output from > > luaTeX and XeTeX. > > > > Is this a bug, or am I missing something obvious? > > > > > > -------------------------------------------------- > > Subscriptions, Archive, and List information, etc.: > > http://tug.org/mailman/listinfo/xetex > > -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
