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This library implements several algorithms related to the Unicode Standard:
*Look up uppercase, lowercase, and titlecase equivalents of a unicode
character.
*Implementation of grapheme and work breaking rules.
*Implementation of line breaking rules.
*Several ancillary functions, like looking up the unicode character
that corresponds to some HTML 4.0 entity (such as &, for
example), and determining the normal width or a double-width status of
a unicode character. Also, an adaptation of the iconv(3) API for this
unicode library.
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