A method of [encoding] [UNICODE] characters. It takes a variable number of bytes per character, but has the good property of making those characters from the [ASCII] subset (a majority of those found in most [Tcl] programs and much other text) single bytes.

Internally, Tcl uses a pseudo-UTF-8 encoding for most of its strings. This differs from the standard encoding in exactly one way: the NUL character (\u0000) is encoded using two bytes (i.e. in denormalized form). This means that we can use strings as binary-safe containers while still maintaining the C-string property of having a zero byte terminate the string.


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