zuzu-rust 0.4.0

Rust implementation of ZuzuScript
Documentation 
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from std/string/encode import decode, encode,
	ENCODING_UTF8, ENCODING_UTF16, ENCODING_UTF32, ENCODING_LATIN;
from std/string import to_binary;
from test/more import *;

is(
	typeof( encode( "héllo", "UTF-8" ) ),
	"BinaryString",
	"UTF-8 encode returns a BinaryString",
);
is(
	decode( encode( "héllo", "UTF-8" ), "UTF-8" ),
	decode( encode( "héllo", "utf-8" ), "utf-8" ),
	"UTF-8 decoding is case-insensitive",
);
is(
	decode( encode( "héllo", "UTF-8" ), "UTF-8" ),
	"héllo",
	"UTF-8 decode is inverse",
);

is(
	length( encode( "😀", "UTF-16" ) ) mod 2,
	0,
	"UTF-16 output has 16-bit units",
);
is(
	decode( encode( "h😀", "UTF-16" ), "utf-16" ),
	"h😀",
	"UTF-16 decode is inverse",
);

is(
	typeof( encode( "h😀", "UTF-32" ) ),
	"BinaryString",
	"UTF-32 encode returns a BinaryString",
);
is(
	decode( encode( "h😀", "UTF-32" ), "Utf-32" ),
	"h😀",
	"UTF-32 decode is inverse",
);

is(
	decode( encode( "café", "ISO-8859-1" ), "ISO-8859-1" ),
	"café",
	"ISO-8859-1 supports latin-1 text",
);

like(
	exception( function () {
		encode( to_binary("x"), "UTF-8" );
	}),
	/TypeException/,
	"encode rejects BinaryString input",
);
like(
	exception( function () {
		decode( "x", "UTF-8" );
	}),
	/TypeException/,
	"decode rejects String input",
);
ok(
	exception( function () {
		encode( "x", "bogus" );
	} ) != null,
	"unsupported encode encodings are rejected",
);
ok(
	exception( function () {
		decode( encode( "x", "UTF-8" ), "bogus" );
	} ) != null,
	"unsupported decode encodings are rejected",
);

is(ENCODING_UTF8,  "UTF-8",      "ENCODING_UTF8 constant");
is(ENCODING_UTF16, "UTF-16",     "ENCODING_UTF16 constant");
is(ENCODING_UTF32, "UTF-32",     "ENCODING_UTF32 constant");
is(ENCODING_LATIN, "ISO-8859-1", "ENCODING_LATIN constant");

done_testing();