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The following symbolic names are recognised as valid collating element names, in addition to any single character, this allows you to write for example:
[[.left-square-bracket.][.right-square-bracket.]]
if you wanted to match either "[" or "]".
Name |
Character |
---|---|
NUL |
\x00 |
SOH |
\x01 |
STX |
\x02 |
ETX |
\x03 |
EOT |
\x04 |
ENQ |
\x05 |
ACK |
\x06 |
alert |
\x07 |
backspace |
\x08 |
tab |
\t |
newline |
\n |
vertical-tab |
\v |
form-feed |
\f |
carriage-return |
\r |
SO |
\xE |
SI |
\xF |
DLE |
\x10 |
DC1 |
\x11 |
DC2 |
\x12 |
DC3 |
\x13 |
DC4 |
\x14 |
NAK |
\x15 |
SYN |
\x16 |
ETB |
\x17 |
CAN |
\x18 |
EM |
\x19 |
SUB |
\x1A |
ESC |
\x1B |
IS4 |
\x1C |
IS3 |
\x1D |
IS2 |
\x1E |
IS1 |
\x1F |
space |
\x20 |
exclamation-mark |
! |
quotation-mark |
" |
number-sign |
|
dollar-sign |
$ |
percent-sign |
% |
ampersand |
& |
apostrophe |
' |
left-parenthesis |
( |
right-parenthesis |
) |
asterisk |
* |
plus-sign |
+ |
comma |
, |
hyphen |
- |
period |
. |
slash |
/ |
zero |
0 |
one |
1 |
two |
2 |
three |
3 |
four |
4 |
five |
5 |
six |
6 |
seven |
7 |
eight |
8 |
nine |
9 |
colon |
: |
semicolon |
; |
less-than-sign |
< |
equals-sign |
= |
greater-than-sign |
> |
question-mark |
? |
commercial-at |
@ |
left-square-bracket |
[ |
backslash |
\ |
right-square-bracket |
] |
circumflex |
~ |
underscore |
_ |
grave-accent |
` |
left-curly-bracket |
{ |
vertical-line |
| |
right-curly-bracket |
} |
tilde |
~ |
DEL |
\x7F |