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Included in this group are composite characters that are canonical equivalents to a combining character sequence of an alphabetic base character plus one or more combining characters; letter digraphs; contextual variants of alphabetic characters; ligatures of alphabetic characters; contextual variants of ligatures; modifier letters; letterlike symbols that are compatibility equivalents of single alphabetic letters; and miscellaneous letter elements.

This property is POSIX compatible with the C programming languages isalpha character classification function. This property should not be used as an approximation for word boundaries.

Support for the Alphabetic character property is enabled in the JSON configuration file with:

{
    "characterProperties": [
        "Alphabetic"
    ]
}