| Subject | English | Italian |
| comp., MS | control escape sequence | sequenza di escape di controllo (In regular expressions, a backslash followed by the letter "c" followed by one of the letters "a" through "z" or "A" through 'Z'. It matches the ASCII control character that is named by that letter) |
| comp., MS | escape sequence | sequenza di escape (A character combination consisting of an escape character, usually a backslash, followed by a letter or by a combination of digits) |
| comp., MS | hexadecimal escape sequence | sequenza di escape esadecimale (In regular expressions, a backslash followed by the letter "x" followed by a sequence of hexadecimal digits. It matches a character in the target sequence that has the value that is specified by the two digits) |
| comp., MS | octal escape sequence | sequenza di escape ottale (In regular expressions, a backslash followed by one, two, or three octal digits (0-7). It matches a character in the target sequence that has the value that is specified by those digits) |
| comp., MS | unicode escape sequence | sequenza di escape Unicode (In regular expressions, a backslash followed by the letter "u" followed by four hexadecimal digits. It matches a character in the target sequence that has the value that is specified by the four digits) |