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Difference between revisions of "Character escape codes"

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| align=center| NUL || align=center|%0 ||   || 00 || ASCII NUL
 
| align=center| NUL || align=center|%0 ||   || 00 || ASCII NUL
 
|-
 
|-
| align=center|   || align=center|%xhh || align=center|%#hh ||   || 'hh' is the character code as 2 hex digits. Note that you must use 2 digits.
+
| align=center|   || align=center|%xhh || align=center|%#hh ||   || 'hh' is the ASCII character code as 2 hex digits. Note that you must use 2 digits.
 
|-
 
|-
 
| align=center|   || align=center|%l ||   || 80 || Extended NUL ('\x80')
 
| align=center|   || align=center|%l ||   || 80 || Extended NUL ('\x80')

Revision as of 22:09, 31 March 2008

Escape sequences use an escape character to change the meaning of the characters which follow it. In the event handler backslash (\) or percent (%) can be used as escape character.

Char Code Alt. code Hex Description
, %, %c 2C Comma
( %( %o 28 Opening parenthese
) %) %p 29 Closing parenthese
" %" %d 22 Double quote
; %; %e 3B Semicolon
\ %\   5C Backslash
% %%   25 Percent
TAB %t   09 ASCII TAB (Horisontal tab)
SP %s   20 Space
CR %r   0D Carriage return
LF %n   0A Line feed
BEL %a   07 Bell (Alert)
BS %b   08 Backspace
NUL %0   00 ASCII NUL
  %xhh %#hh   'hh' is the ASCII character code as 2 hex digits. Note that you must use 2 digits.
  %l   80 Extended NUL ('\x80')
  %q     to quote next character in string (if not parameter or end of string)



Example: CR (Carriage Return) can be generated by any of the following escape sequences:

\r
%r
\x0D
%x0D
%#0D