Re: Fwd: Fwd: Re: CSS Text issues

Dear All ,
The latest link is available at http://w3cindia.in/Indic-req-draft/Revised-Indic-layout-requirements.html. The discussion may take place around this document. 
Best Regards,
Somnath
 
On 07/14/14 10:46 PM, Richard Ishida <ishida@w3.org> wrote:
> 
> Forwarding an email from Swaran Lata containing information that is not yet in the latest version of the indic layout requirements doc.
> 
> RI
> 
> 
> 
> -------- Original Message --------
> Subject:  Fwd: Re: CSS Text issues
> Date:  Fri, 27 Jun 2014 17:05:58 +0530
> From:  Swaran Lata <slata@deity.gov.in>
> To:  member-i18n-core@w3.org <member-i18n-core@w3.org>
> CC:  Koji Ishii <kojiishi@gluesoft.co.jp>, "Phillips, Addison"
> <addison@lab126.com>, fantasai <fantasai@inkedblade.net>, Richard Ishida
> <ishida@w3.org>
> 
> 
> 
>   Dear All ,
> Specific requirements for Indic languages requirments on issue 316  and
> 334 are as below. May pl be considered.
> *[css-text] I18N-ISSUE-316: Line breaking defaults*
> 
> In Indian languages, it is recommended that line should be break
> preferably at word boundary .If unavoidable the guiding principles are
> as below:
> 
> Rule 1: New line cannot begin with following symbols/Punctuation marks.
> Also these should be retain with the associated text
> 
> ·Closing brackets
> 
> ·Devanagari Danda /Purnaviram
> 
> ·Commas
> 
> ·Visarga
> 
> ·Decimal symbols
> 
> ·Semicolon
> 
> ·Repetition of punctuation marks such as semicolon with closing
> brackets, Semicolon with single/ Double quotes , Closing brackets with
> commas/Semicolon etc
> 
> ·Mathematical operators
> 
> Rule 2: The definition of Indic syllable may be used to break the line
> and a hyphen should be at the breaking point so that word can be read
> intuitively
> 
> Rule 3: The hyphenated words can be broken at the hyphen e.g.:नर-नारी
> should be treated as:नर- on the first line and नारी on the next line
> 
> Rule 4: Expression with mathematical symbol should be treated as single
> unit so that at the end of the line expression shouldn’t breaks at
> operator level
> 
> Rule 5: Breaking should not be allowed at numerical values such as
> currency values, year etc. e.g.“100.00” or “10,000”, nor in “12:59”
> 
> **
> 
> *2.**[css-text] I18N-ISSUE-334: 'letter-spacing' and Indic*
> 
> **
> 
> For letter spacing in Indian languages it is recommended that spacing
> should follow Indic syllable definition. The ABNF form of Indic syllable
> is given below :
> 
> *V[m] |{CH}C[v][m]|CH*
> 
> 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
> 
> Here is the some examples of letter spacing that based on abovedefinition :
> 
> 1.अं त र्रा ष्ट्री य क र ण
> 
> 2.स्वा ग त म्
> 
> 3.सु स ज्जि त
> 
> 4.स म्प्र ति
> 
> The above examples corresponds to Unicode tailored grapheme cluster
> instead of extended grapheme cluster. So it is recommended that the
> letter spacing in Indian languages should based on the Indic syllable
> definition.
> 
> The issues may be discussed further.
> /Swaran Lata.
> 
> 
> 
-- 

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