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Character escape codes

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Revision as of 14:17, 21 October 2008 by Asle (talk)

Escape sequences use an escape character to change the meaning of the characters which follow it. In the Event Handler backslash (\) is used as escape character. Escape sequences might be used in the EDO command to generate non-printable ASCII characters.

Some frequently used escape sequences:

\r = Carriage Return
\n = Line Feed
\t = Tab 
\xhh = hh is any ASCII value in HEX

Escape sequences:

Escape sequence Result Hex code Description
\, , 2C Comma
\( ( 28 Opening parenthese
\) ) 29 Closing parenthese
\" " 22 Double quote
\; ; 3B Semicolon
\\ \ 5C Backslash
\% % 25 Percent
\t TAB 09 ASCII TAB (Horisontal tab)
\s SP 20 Space
\r CR 0D Carriage return
\n LF 0A Line feed
\a BEL 07 Bell (Alert)
\b BS 08 Backspace
\0 NUL 00 ASCII NUL
\l   80 Extended NUL ('\x80')
\!     Comment / ignore rest of string
\xhh     'hh' is the ASCII character code as 2 hex digits. Note that you must use 2 digits.
\#hh     'hh' is the ASCII character code as 2 hex digits. Note that you must use 2 digits.



By using the escape sequence '\xhh' all sorts of ASCII characters can be generated.