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if (typeof parseRegExp === 'undefined')
quit();
load(libdir + "regexp_parse.js");
// LeadSurrogate TrailSurrogate
test("\\uD83D\\uDC38", all_flags,
Atom("\uD83D\uDC38"));
test("X\\uD83D\\uDC38Y", no_unicode_flags,
Atom("X\uD83D\uDC38Y"));
test("X\\uD83D\\uDC38Y", unicode_flags,
Text([
Atom("X"),
Atom("\uD83D\uDC38"),
Atom("Y")
]));
// LeadSurrogate
test_mix("\\uD83D", no_unicode_flags,
Atom("\uD83D"));
test("\\uD83D", unicode_flags,
Alternative([
Atom("\uD83D"),
NegativeLookahead(CharacterClass([["\uDC00", "\uDFFF"]]))
]));
test("X\\uD83DY", unicode_flags,
Alternative([
Atom("X"),
Alternative([
Atom("\uD83D"),
NegativeLookahead(CharacterClass([["\uDC00", "\uDFFF"]]))
]),
Atom("Y")
]));
// TrailSurrogate
test_mix("\\uDC38", no_unicode_flags,
Atom("\uDC38"));
test("\\uDC38", unicode_flags,
Alternative([
Assertion("NOT_AFTER_LEAD_SURROGATE"),
Atom("\uDC38"),
]));
test("X\\uDC38Y", unicode_flags,
Alternative([
Atom("X"),
Alternative([
Assertion("NOT_AFTER_LEAD_SURROGATE"),
Atom("\uDC38"),
]),
Atom("Y")
]));
// NonSurrogate / Hex4Digits
test_mix("\\u0000", all_flags,
Atom("\u0000"));
test_mix("\\uFFFF", all_flags,
Atom("\uFFFF"));
// braced HexDigits
test_mix("\\u{0000}", unicode_flags,
Atom("\u0000"));
test_mix("\\u{FFFF}", unicode_flags,
Atom("\uFFFF"));
test("\\u{1F438}", unicode_flags,
Atom("\uD83D\uDC38"));
test("X\\u{1F438}Y", unicode_flags,
Text([
Atom("X"),
Atom("\uD83D\uDC38"),
Atom("Y")
]));
test("\\u{D83D}", unicode_flags,
Alternative([
Atom("\uD83D"),
NegativeLookahead(CharacterClass([["\uDC00", "\uDFFF"]]))
]));
test("X\\u{D83D}Y", unicode_flags,
Alternative([
Atom("X"),
Alternative([
Atom("\uD83D"),
NegativeLookahead(CharacterClass([["\uDC00", "\uDFFF"]]))
]),
Atom("Y")
]));
test("\\u{DC38}", unicode_flags,
Alternative([
Assertion("NOT_AFTER_LEAD_SURROGATE"),
Atom("\uDC38"),
]));
test("X\\u{DC38}Y", unicode_flags,
Alternative([
Atom("X"),
Alternative([
Assertion("NOT_AFTER_LEAD_SURROGATE"),
Atom("\uDC38"),
]),
Atom("Y")
]));
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