Fwd: ABNF defintion of Indic syllable

Dear All,
 
Pl find the revised definition of Indic Syllable as per the appended mail , which has been circulated on June 17, 2014. The definition is generic in nature to suit most of Indian Languages [11 languages tested]. Pl send your feedback  towards finalization. 
 
With regards,
Somnath
 
-------- Original Message --------
From: Swaran Lata <slata@deity.gov.in>
Date: Jun 17, 2014 5:20:20 PM
Subject: ABNF defintion of Indic syllable
To: public-i18n-indic@w3.org
Cc: Somnath Chandra <schandra@mit.gov.in>, Manoj Jain <mjain@mit.gov.in>
 

Dear All,


The definition of Indic syllable has been revised as under :

V[m] |{CH}C[v][m]|CH




The Linguistic definition of Indic syllable has been mapped to ABNF(Augmented Backus–Naur Form) for the purpose of text segmentation, Line breaking , Drop letter, letter spacing in horizontal text and vertical text representation. The definition has been elaborated taking Hindi as an example.




The definition is combination of 3 rules :




Rule 1 : V[m]

Rule 2 : {CH}C[v][m]

Rule 3 : CH  (This rule is applicable only at the end of the word)




V(Upper case) is complete vowel

m is modifier(Anusvara/Visarga/Chandrabindu)

C is Consonant as per Unicode definition which may or may not include nukta

 v (lower case) is any dependent vowel or vowel sign (mātrā)

H is halant / virama

| is a rule seperator

[ ] - The enclosed items is optional under this bracket

{} - The enclosed item/items occurs once or repeated multiple times




Examples:

Rule 1 : V[m]



Sl. No.

Examples

Definition

1.      

अ, ई, उ

V (Vowel) is a syllable



2.      

अं, उँ, आः

V+ Modifier is a syllable






Rule 2 : {CH}C[v][m]



Sl. No.

Examples

Definition

1.      

र, क, ज, ल, म 

Consonant is a syllable

2.      

प्प,क्ख,च्त, ज्ज्व, त्क्ल,त्स्न





Zero or more Consonant + Virama sequences followed by consonant is a syllable



3.      

र्त, र्त्स, र्त्स्न, र्त्स्न्य, फ़्क़

Zero or more Consonant (Nukta) +Virama  followed by consonant is a syllable



4.      

र्ता, र्त्स्न्या, फ़्जी, क्या

Zero or more consonant+ (Nukta)+ virāma sequences followed by a consonant (+Nukta) followed by a vowel sign is a syllable

5.      

तः,स्तं, स्त्रँ, स्तः, फ़्ज़ँ  







zero or more consonant+ (Nukta)+ virāma sequences followed by a consonant (+Nukta) followed by modifier is a syllable

6.      

र्त्स्न्या: त्स्न्युं, त्स्न्युँ, फ़्ज़ें,हिं

zero or more consonant+ (Nukta)+ virāma sequences followed by a consonant (+Nukta) followed by a vowel sign and modifier is a syllable

7.      

स्थि,ज्जि,ख्वा

Zero or more Consonant +halant sequences followed by a consonant followed by vowel sign is a syllable




Rule 3 : CH

त् , व् , म् , भ् etc are syllable in Hindi only at the end of the word 

Examples of combination of the rules :

1.   स्वागतम् -  CHCv + C + C + CH has following syllables :



स्वा

CHCv

ग

C

त

C

म्

CH




2. भरतनाट्यम- C + C + C + Cv + CHC + C



भ

C

र

C

त

C

ना

Cv

ट्य

CHC

म

C




3. सद्बुद्धि - C + CHCv + CHCv



स

C

द्बु

CHCv

द्धि

CHCv




The proposed definition is generic in nature and has already being tested for 11 Indian languages i.e Hindi, Marathi, Bengali, Nepali, Tamil, Telugu, Kannada, Gujarati, Punjabi, Oriya  & Malayalam. The new rule for CH(Consonant+ Halant) occurrence at the end of the word has been introduced. The link of the test suite is available at http://w3cindia.in/syllable-generator.aspx.The testing of the remaining languages is underway.

            I request you to kindly give your valuable feedback.




regards,

-- 

Swaran Lata,
Director & HoD (TDIL Programme)
Department of Electronics and Information Technology (DeitY), MC&IT,
Government of India,
Electronics Niketan, 6, CGO Complex, Room No. 2072
Lodhi Road, New Delhi - 110 003
INDIA



Telfax: +91-11-24363525 (D), +91-11-24301272
E-mail: slata@deity.gov.in

 
 
-- 

Dr. Somnath Chandra
Scientist-E
Dept. of Electronics & Information Technology
Ministry of Communications & Information Technology
Govt. of India
Tel:+91-11-24364744,24301856
Fax: +91-11-24363099
e-mail :schandra@mit.gov.in