Text fields marked with a icon can contain backslash-style escape codes for encoding newlines, carriage returns, unprintable characters, or any arbitrary byte.
Every escape code begins with a backslash, and then either a single character representing a built-in escapable character, or an "x" and two case-insensitive hexadecimal digits. See the examples below for more information.
Special Escape Codes
The following list contains all the built-in escapable characters; any other non-printable character must be encoded as a byte:
\\– single backslash
\f– form feed
\r– carriage return
\v– vertical tab
\0– null byte
\r\n– the CR+LF grapheme
\xAF\xFF– two arbitrary bytes with values
QUIT\r\n– FTP QUIT command
QUIT\x0d\x0a– FTP QUIT command as above, but using byte syntax instead