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Unicode blocks in ConTeXt (view source)
Revision as of 13:54, 25 October 2017
, 13:54, 25 October 2017no edit summary
Every block is an interval of code points. Different blocks are disjoint from each other, and every code point belongs to at least one block. Thus, the blocks form a partition of the set of all Unicode code points. The number of code points in a block varies. Some have just 16 code points, and some others have thousands of code points.
A code block starts at a code point that is a multiple of 16. The number of code points in each block is also a multiple of 16. Thus, the hexadecimal representation of the first code point in a block is of the form ''pqrs''0, and that of the last code point in it is of the form ''tuvw''F, where ''p'', ''q'', ''r'', ''s'', ''t'', ''u'', ''v'', and ''vw'', are hexadecimal digits.
The Unicode standard gives every block a unique name that describes the common semantic nature of its code points. These names are case insensitive, and the hyphens, spaces, and underscores, in them are insignificant. For example, one can refer to the block whose Unicode name is {{code|Myanmar Extended-A}} as {{code|myanmarextendeda}}, {{code|MyanmarExtendedA}}, or {{code|myanmar_extended_a}}. ConTeXt chooses the first of these alternative styles for the names of blocks, as described below.
