| Subject | English | Spanish |
| comp., MS | control escape sequence | secuencia Control Esc (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) |
| IT | escape sequence | secuencia de escape |
| comp., MS | escape sequence | secuencia de escape (A character combination consisting of an escape character, usually a backslash, followed by a letter or by a combination of digits) |
| IT | escape sequence | secuencia de cambio de código |
| comp., MS | hexadecimal escape sequence | secuencia de escape hexadecimal (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 | secuencia de escape octal (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 | secuencia de 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) |