diff options
Diffstat (limited to 'doc/syntax/literals.rdoc')
| -rw-r--r-- | doc/syntax/literals.rdoc | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/doc/syntax/literals.rdoc b/doc/syntax/literals.rdoc index 1d4ca80ada..7fcd7ca3a3 100644 --- a/doc/syntax/literals.rdoc +++ b/doc/syntax/literals.rdoc @@ -83,8 +83,31 @@ Any internal <tt>"</tt> must be escaped: "This string has a quote: \". As you can see, it is escaped" -Double-quote strings allow escaped characters such as <tt>\n</tt> for newline, -<tt>\t</tt> for tab, etc. +Double-quote strings allow escaped characters such as <tt>\n</tt> for +newline, <tt>\t</tt> for tab, etc. The full list of supported escape +sequences are as follows: + + \0 null, ASCII 00h (NUL) + \a bell, ASCII 07h (BEL) + \b backspace, ASCII 08h (BS) + \t horizontal tab, ASCII 09h (TAB) + \n newline (line feed), ASCII 0Ah (LF) + \v vertical tab, ASCII 0Bh (VT) + \f form feed, ASCII 0Ch (FF) + \r carriage return, ASCII 0Dh (CR) + \e escape, ASCII 1Bh (ESC) + \s space, ASCII 20h (SPC) + \\ backslash, \ + \nnn octal bit pattern, where nnn is 1-3 octal digits ([0-7]) + \xnn hexadecimal bit pattern, where nn is 1-2 hexadecimal digits ([0-9a-fA-F]) + \unnnn Unicode character, where nnnn is exactly 4 hexadecimal digits ([0-9a-fA-F]) + \u{nnnn ...} Unicode character(s), where each nnnn is 1-6 hexadecimal digits ([0-9a-fA-F]) + \cx or \C-x control character, where x is an ASCII printable character + \M-x meta character, where x is an ASCII printable character + \M-\C-x meta control character, where x is an ASCII printable character + +Any other charater followed by a backslash is interpreted as the +character itself. Double-quote strings allow interpolation of other values using <tt>#{...}</tt>: |