Single Character Escape 

Identifies a set containing only one character, usually because that character is difficult or impossible to write directly into a regular expression.

Syntax

SingleCharEsc ::= '\' [nrt\|.?*+(){} #x2Dx5B#X5D#x5E]

Remarks

The following table shows valid single character escapes and their descriptions.

Valid single character escapes Set of characters C(R)

\n

The new line character (#xA).

\r

The return character (#xD).

\t

The tab character (#x9).

\\

\

\|

|

\.

.

\-

-

\^

^

\?

?

\*

*

\+

+

\{

{

\}

}

\(

(

\)

)

\{

{

\}

}

\[

[

\]

]

See Also

Reference

XML Schema Regular Expressions
XML Schema Regular Expressions Reference Chart

Concepts

Data Type Facets