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3.1.1.4.1.1.2 Disallowed Characters

  • Article

The following characters are disallowed and MUST NOT be used. The disallowed characters and their appropriate replacement values are noted in the table.

Characters that MUST NOT be used in a file name are shown in the following table.

A character whose value is less than 0x20 MUST be replaced with !00xx where xx is the hexadecimal value of the character (for example, the value of 0x10 is replaced with !0010). A character whose value is greater than or equal to 0x7F MUST be replaced with !00xx where xx is the hexadecimal value of the character (for example, the value of 0x80 is replaced with !0080).

 Name

 Character

 Value in !xxxx format

Exclamation point

!

!0021

Inch or quotation mark

"

!0022

Number sign

#

!0023

Percent

%

!0025

Ampersand

&

!0026

Apostrophe

'

!0027

Opening parenthesis

(

!0028

Closing parenthesis

)

!0029

Asterisk

*

!002a

Plus sign

+

!002b

Comma

,

!002c

Slash mark

/

!002f

Colon

:

!003a

Semicolon

;

!003b

Less than sign

<

!003c

Equal sign

=

!003d

Greater than sign

>

!003e

Question mark

?

!003f

Opening bracket

[

!005b

Backslash

\

!005c

Closing bracket

]

!005d

Caret or circumflex

^

!005e

Grave accent

`

!0060

Opening brace

{

!007b

Pipe or vertical line

|

!007c

Closing brace

}

!007d