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"include" <file>
Include the contents of <file>.
"unmap" <sequence range>
Remove mapping for byte sequence range.
"remap" <sequence range> "to" "U+"<code point> ["using" <endian>]
Like "map", except assume all sequence is already defined
and redefine them instead.
["readonly"] "map" <sequence range> "to" "U+"<code point> ["using" <endian>]
Map a byte sequence range to a code point range.
If a sequence is already defined, fail.
<code point> (hexadecimal) shall be the code point for the
lowest valued sequence in <sequence range>
If multiple byte sequences, <endian> may be "big-endian" or "little-endian"
to specify the significance of the bytes in the sequence, alternative
value calculations can be specified in <sequence range>
If "readonly" is present, the mapping should only be used when decoding,
not when encoding. For each mapped code point, there must exist exactly
on mapping that is not "readonly".
<sequence range>
<byte>
Single byte range.
<byte> [<value calculation>] (", " <byte> [<value calculation>]) ...
A sequence of bytes, in storage order.
<value calculation> shall appear on all or no <byte>, and
shall appear if and only if <endian> was not used but at
least two <byte>s are valued (have multiple legal values).
<byte>
<value>
Single byte, not valued.
<value>(["-"|"+"]<value>)...
The <value>s should be ordered by mapping value.
The first <value> is the lowest values byte in domain (valued 0).
"-" creates a range from the previous <value> upto and include
the <value> behind it
"+" creates a domain disjunction, skipping over the values
between, but excluding, the values between the <value>s
on either side of it
<value calculation>
"<<<" <positive decimal>
set the relative significance of the byte, 0 is least significant.
<value>
<positive decimal>
0x<positive hexadecimal>
\ may be used on the end of a line to replace the <newline> with a space.
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