Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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POSIX Symbolic Names

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


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