Tibetan (Unicode block)
The Unicode block Tibetan ( engl. Tibetan, U 0 F00 to U 0 FFF) includes the characters of the Tibetan font with which the Tibetan is written.
The Unicode block U 105 F to was encoded in Unicode 1.0 in the range U 1000, which is today occupied by the Burmese Unicode block. Similar to the Unicode blocks the other Indian scriptures consonants compounds were prepared using the Viramas. The block but was completely removed in version 1.1, and only added in Unicode 2.0 in today's field again, this time with a much richer character inventory.
In contrast to the encoding in Unicode version 1.0 here the Virama is no longer used to represent consonant combinations ( it is still available to write Sanskrit texts ). There are encodes two rows of consonants: the first in a normal position, the second in subscript position. In this way, any consonant clusters can be represented, even the most complex, as they occur in the classical Tibetan. A consonant cluster always starts with the basic letters, then follow all the subscripts, then the vowel. Any special characters come last.
There are two problems with the sorting Tibetan characters which can not be changed in order to ensure the stability of the standard:
- The vowel U ( U 0 F74 ), which is under the consonant is sorted by the other, written with the consonants. This contradicts not only the logical order in Tibetan, but also the Unicode standard itself, but rarely causes problems because a consonant usually has only one vowel signs.
- The sign tsa ' Phru ( U 0 F39 ) is always sorted after all vowels, but it is this is a sign that connects to the consonants. By this order, the character is therefore not displayed correctly.