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[
"This resource is focused on highlighting issues with UTS #46 ToASCII",
{
"comment": "Label with hyphens in 3rd and 4th position",
"input": "aa--",
"output": "aa--"
},
{
"input": "a†--",
"output": "xn--a---kp0a"
},
{
"input": "ab--c",
"output": "ab--c"
},
{
"comment": "Label with leading hyphen",
"input": "-x",
"output": "-x"
},
{
"input": "-†",
"output": "xn----xhn"
},
{
"input": "-x.xn--zca",
"output": "-x.xn--zca"
},
{
"input": "-x.ß",
"output": "-x.xn--zca"
},
{
"comment": "Label with trailing hyphen",
"input": "x-.xn--zca",
"output": "x-.xn--zca"
},
{
"input": "x-.ß",
"output": "x-.xn--zca"
},
{
"comment": "Empty labels",
"input": "x..xn--zca",
"output": "x..xn--zca"
},
{
"input": "x..ß",
"output": "x..xn--zca"
},
{
"comment": "Invalid Punycode",
"input": "xn--a",
"output": null
},
{
"input": "xn--a.xn--zca",
"output": null
},
{
"input": "xn--a.ß",
"output": null
},
{
"input": "xn--ls8h=",
"output": null
},
{
"comment": "Invalid Punycode (contains non-ASCII character)",
"input": "xn--tešla",
"output": null
},
{
"comment": "Valid Punycode",
"input": "xn--zca.xn--zca",
"output": "xn--zca.xn--zca"
},
{
"comment": "Mixed",
"input": "xn--zca.ß",
"output": "xn--zca.xn--zca"
},
{
"input": "ab--c.xn--zca",
"output": "ab--c.xn--zca"
},
{
"input": "ab--c.ß",
"output": "ab--c.xn--zca"
},
{
"comment": "CheckJoiners is true",
"input": "\u200D.example",
"output": null
},
{
"input": "xn--1ug.example",
"output": null
},
{
"comment": "CheckBidi is true",
"input": "يa",
"output": null
},
{
"input": "xn--a-yoc",
"output": null
},
{
"comment": "processing_option is Nontransitional_Processing",
"input": "ශ්රී",
"output": "xn--10cl1a0b660p"
},
{
"input": "نامهای",
"output": "xn--mgba3gch31f060k"
},
{
"comment": "U+FFFD",
"input": "\uFFFD.com",
"output": null
},
{
"comment": "U+FFFD character encoded in Punycode",
"input": "xn--zn7c.com",
"output": null
},
{
"comment": "Label longer than 63 code points",
"input": "x01234567890123456789012345678901234567890123456789012345678901x",
"output": "x01234567890123456789012345678901234567890123456789012345678901x"
},
{
"input": "x01234567890123456789012345678901234567890123456789012345678901†",
"output": "xn--x01234567890123456789012345678901234567890123456789012345678901-6963b"
},
{
"input": "x01234567890123456789012345678901234567890123456789012345678901x.xn--zca",
"output": "x01234567890123456789012345678901234567890123456789012345678901x.xn--zca"
},
{
"input": "x01234567890123456789012345678901234567890123456789012345678901x.ß",
"output": "x01234567890123456789012345678901234567890123456789012345678901x.xn--zca"
},
{
"comment": "Domain excluding TLD longer than 253 code points",
"input": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.x",
"output": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.x"
},
{
"input": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.xn--zca",
"output": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.xn--zca"
},
{
"input": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.ß",
"output": "01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.01234567890123456789012345678901234567890123456789.0123456789012345678901234567890123456789012345678.xn--zca"
},
{
"comment": "IDNA ignored code points",
"input": "a\u00ADb",
"output": "ab"
},
{
"comment": "Interesting UseSTD3ASCIIRules=false cases",
"input": "≠",
"output": "xn--1ch"
},
{
"input": "≮",
"output": "xn--gdh"
},
{
"input": "≯",
"output": "xn--hdh"
}
]