[ilreq] When does the ABNF work for Tamil conjuncts?

r12a has just created a new issue for https://github.com/w3c/ilreq:

== When does the ABNF work for Tamil conjuncts? ==
The document largely gives the impression that the ABNF rules indicate what must be kept together for "text segmentation, line breaking , drop letter, letter spacing in horizontal text and vertical text representation".

However, is that true for Tamil?  Conjuncts in Tamil don't interact with left-positioned vowel signs in the same way as Devanagari or Bengali.  Here are some examples i took from the UDHR.


1. in these words the left-positioned vowel appears between the two consonants in a cluster"
 யாவற்றையும்
 yāvaṟṟaiyum
 
 கௌரவத்தையும்
 kauravattaiyum
 
 அசிரத்தையும் அவற்றை
 acirattaiyum avaṟṟai
 
 ஏற்கப்பெற்று
 ēṟkappeṟṟu
 
 எல்லோரும்
 ellōrum

2. in these the vowel shaping interacts only with the final consonant:
 செயல்களுக்கு
 ceyalkaḷukku
 
 கேட்டுக்
 kēṭṭuk

3. this one has a doubled consonant at the word end, but doesn't need two viramas
 பராதீனப்படுத்த
 parātīṉappaṭutt

The table of examples of the ABNF doesn't include this type of conjunct, only ones such as க்ஷ, ஶ்ரீ , and ஸ்ரீ , which are special because they ligate.

So, given examples such as those in the list above, is it or is it not normal to keep conjunct consonants together in Tamil for text segmentation, line breaking , drop letter, letter spacing in horizontal text and vertical text representation?

Please view or discuss this issue at https://github.com/w3c/ilreq/issues/31 using your GitHub account

Received on Wednesday, 12 April 2017 19:43:30 UTC