{"text": "Below is a perplexing mix of formats, strings, and structures designed to torment even the most seasoned regex guru:\n\n1) \"some.\\\"deep\\\"(local)\"@xn--e1afmkfd.xn--p1ai is an email with quotes and parentheses in the local-part, plus a punycode domain.\n2) Meanwhile, here's an IPv6 email with a zone index: complex.user+tag@[IPv6:fe80::1%eth0].\n3) A tricky phone number: +44 20 7946 0999 #extension, with optional whitespace and a '#'.\n4) Over-the-top date/time: 9999-12-31T23:59:59.999999+14:00.\n5) Look at this bracket notation with escaped quotes: data['strange.key\\\"part'][0]['another\\'one'].nested.\n6) A multiline function call:\n\n   functionCall(\n     param,\n     { \"nested\": \"obj\\\"val\" },\n     another => run(\"escaped\")\n   )\n\n7) The multiline comment with bizarre characters: /* multiline (with) [curly] {braces} and slash(es) / *? + ??? comment */\n8) A mailto link with query params: mailto:dotted.name+filter@sub.domain.co.uk?subject=Test&cc=copy@example.com\n9) Here's an LDAP reference: ldap://[2001:db8::7]/ou=people,dc=example,dc=com??one?(cn=John\\,Doe)\n10) A leap second date/time: 2024-12-31T23:59:60Z\n11) An ISO week-based date/time: 2025-W07-2T12:34:56-05:30\n12) Another phone style: tel:+1-202-555-0100;ext=001\n13) Strange email with semicolons: name;with;semicolons <strange;name@domain.net>\n14) Negative lookahead cameo: regex(?!fail)\n15) An IDN with Cyrillic TLD: C0mpl3x_TLD@domain.рф\n\nWe also have random strings meant to mislead naive patterns:\n- Random non-matching date: 2030-13-40\n- Not really an email: @not-an-address.\n- A misleading phone: +999(123)(fake)\n- Some stray bracket references: data[key][???]\n\nGood luck matching exactly the 15 target items!\n", "targetItems": ["\"some.\\\"deep\\\"(local)\"@xn--e1afmkfd.xn--p1ai", "complex.user+tag@[IPv6:fe80::1%eth0]", "+44 20 7946 0999 #extension", "9999-12-31T23:59:59.999999+14:00", "data['strange.key\\\"part'][0]['another\\'one'].nested", "functionCall(\n     param,\n     { \"nested\": \"obj\\\"val\" },\n     another => run(\"escaped\")\n   )", "/* multiline (with) [curly] {braces} and slash(es) / *? + ??? comment */", "mailto:dotted.name+filter@sub.domain.co.uk?subject=Test&cc=copy@example.com", "ldap://[2001:db8::7]/ou=people,dc=example,dc=com??one?(cn=John\\,Doe)", "2024-12-31T23:59:60Z", "2025-W07-2T12:34:56-05:30", "tel:+1-202-555-0100;ext=001", "name;with;semicolons <strange;name@domain.net>", "regex(?!fail)", "C0mpl3x_TLD@domain.рф"]}