Number of high surrogate values.
Source position: unicodedata.pas line 142
| const HIGH_SURROGATE_COUNT = HIGH_SURROGATE_END - HIGH_SURROGATE_BEGIN + 1; | 
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 | Last value for low surrogate values. | |
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 | First value for low surrogate values. | |
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 | Last value for high surrogate values. | |
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 | First value for high surrogate values. |