Request For Suggestion 4000: தமிழ் ஜனிகோட் வரைவிலக்கணம்Tamil Unicode Definitions

Request For Suggestion 5000: Sequence of Input Method for diacritics.
 

JPG graphic images of major Tamil characters/glyphs

Stored values and Rendering

Win2000 Keyboard Layout வின்டோ2000 தமிழ் விசைப்பலகை

Test for correct display of Tamil Characters

ஜுநிகோட் சரியாக தெரிகின்றதா என்பதை நுணுக்கமாக பார்க்கவும்.

0.1 Tamil Diacritics (To be defined)

0.2 Tamil based International Diacritics (for common use) (To be defined)

0.3 International Diacritics (Usage for Tamil to be defined) (Consider placing diacritics in front of alphabets and rear of alphabets and their usage for various languages too)

1.1 Tamil: Leading Vowels (These characters are already defined. (Note: Both Independent and Leading vowels are denoted by same character.))

2.0 Tamil: Trailing Vowels (Note: not the same as lowercase)

2.0.1 Already defined: Trailing Vowels (aa, i, ii, u, uu, e, ee, o, oo, ai, ou, au)

(Real slot allocation but represents the imaginary/inherent "a" for descriptive displays)

(Note: Description: The Primary Aytham/ aHenum should not have any ristrictions on usage. Note: There may be possible ristrictions on a similar character in Thevanagari.)

In order to facilitate the use of diacritics a standardised sequence of input method of code points need to be established. The suggestions should consider Unicode processing as a primary data processing system.

Request 5000-v1: Should the code points for diacritics be input before or after the code point of an alphabet. As Unicode utilises linear processing of standard alphabets, all relative processings are designed using linearity of these code points.

As an example, In Tamil this linearity takes the form of consonant + trailing vowel to form the consonant-vowel ligature. By placing the code point of a descriptive diacritic in front of a consonant all other standard processings can be kept untouched. However, this has the reverse effect if the code point of a descriptive diacritic is placed in front of a vowel as opposed to a consonant. This is because a trailing vowel combines with a consonant.

Solution 1: Con-diacritic + Consonant + vow-diacritic + vowel

` + k + ^ + i `k^i (ki)

Solution 2: Con-diacritic + Consonant + vowel + vow-diacritic

` + k + i + ^ `ki^ (ki)

Solution 3: Consonant + Con-diacritic + vowel + vow-diacritic

k + ` + i + ^ k`i^ (ki)

While a uniform method of inputting diacritics seems ideal, this method may cause unmanageable burden on Unicode itself. Suggestions, comments and recommendations are welcome for this RFS 5000.

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JPG graphic images of major Tamil characters/glyphs.

0.1/
Aytha ezuththuhaL (Tamil Diacritics) to be located within the international code points for diacritics. Rendering of diacritics should be made application friendly.

0.2/
International Rupees and Bisa to be allocated respective currency codes.
Also invetigate the use of sub-identifier such as IndRs/=, EeRs/=, SlRs/= 

1/   முன், மற்றும் சுதந்திர உயிர்஀எழுத்துகள்
அஆ இஈ உஊ எஏ ஐ ஒஓ ஔ   -------------12

2/   பின் உயிர்஀எழுத்துகள்
? ா  ி  ீ  ு ூ ெ ே ை ொ ோ ௌ  -------------12

3/   1ம், 2ம், 3ம் வகை ஆய்த஀எழுத்துகள்

4/ அகர மெய் எழுத்துகள்
கஙசஞடணதநபமயரலவழளறன    -------------18
--------------------------ஸஷஹஜ ----------4
---------------------------------க்ஷ --------1

5/
 

6/  Absolute zero, relative zero, zero and numerals

7/ Reserved
 

8/ Reserved
 

10/
 

11/   மெய் எழுத்துகள்  Consonants
 

12/
 

13/
 

14/
 

Rendering, Glyph substitution, and other shaping necessities

Many believe that Tamil should not be put through the complex rendering process as it does not use a resource consuming complex writing system. In addition to this a mechanism to include the use of aytham/diacritics for Tamil is in need of Unicode support.

As I am involved in the research of Tamil writing systems and Tamil phonemes, I've had to get involved into the art of font creation. I was initially involved with single byte coding to provide the additional computing facility for Tamil research.

As the double byte Unicode is gradually taking prominence, it has become necessary to adapt to Unicode.

Following is a piece of information that I'm currently investigating to find out weather what the apparently compulsory rendering (by that I mean the minimum functionality of an operating system and not of a font's internal substitution/rendering system) is going to be a hindering influence for the Languages in question. This compulsory part can cause severe limitations to the growth of Languages as it is not apparently independent from Operating System.

Notice the differences in,  ke=ek=e'k=(கெ)

க கா கி கீ கு கூ கெ கே கை கொ கோ கௌ

Please report any technical problems in displaying and printing  TabAvarangal2 and TSC_Avarangal (including TamilUnicode) Font and AvarangalUni Font to