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Character set support
The charset unit can be used to load single-byte character set (code page) descriptions. It is used in the fpwidestring unit to add support for converting single-byte codepage strings to Unicode strings (and vice versa).
Data of a code page may be included using one of the ready-made units, or can be loaded (in a binary form) at runtime with the loadbinaryunicodemapping function. The binary files have the .bcm extension and are produced by the creumap utility distributed with Free Pascal.
Pre-made units are available for the following codepages: cp895, cp932, cp936, cp949 and cp950.