- HTML5
12.12.- C
\u0031\u0032\u002E (C99)\U000031\U000032\U00002E (C99)\x31\x32\x2E (encoding-dependent)\061\062\056 (encoding-dependent)- C++
\u{31}\u{32}\u{2E} (C++23)\x{31}\x{32}\x{2E} (C++23, encoding-dependent)\o{061}\o{062}\o{056} (C++23, encoding-dependent)\U00000031\U00000032\U0000002E\u0031\u0032\u002E\x31\x32\x2E (encoding-dependent)\061\062\056 (encoding-dependent)- Java
\u0031\u0032\u002E- JavaScript
\u{31}\u{32}\u{2E}\u0031\u0032\u002E\x31\x32\x2E- CSS
\31\32\2E\000031\000032\00002E- Quoted-Printable
=31=32=2E- URL
%31%32%2E