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Scripts > Token definitions > Regular expressions > Locale dependant features > Collating Element Names
Digraphs (Connection of two letters to a sound)
The following are treated as valid digraphs when used as a collating name:
"ae", "Ae", "AE", "ch", "Ch", "CH", "ll", "Ll", "LL", "ss", "Ss", "SS", "nj", "Nj", "NJ", "dz", "Dz", "DZ", "lj", "Lj", "LJ".
POSIX Symbolic Names
The following symbolic names are recognised as valid collating element names, in addition to any single character:
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
|
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