Name
|
Symbol
|
Function
|
Masked version
|
Open curly brackets
|
{
|
Delimits reference/variable names within a concatenated parameter value
|
\{
|
Close curly brackets
|
}
|
Delimits reference/variable names within a concatenated parameter value
|
\}
|
Single quote
|
'
|
Delimits a verbatim area in a parameter
|
\'
|
Two single quotes
|
''
|
Denotes an empty string
|
\'\'
|
Dollar
|
$
|
Denotes a variable
|
\$
|
Equals
|
=
|
Denotes a referenced parameter
|
\=
|
Question mark
|
?
|
Denotes a function
|
?
|
Backslash
|
\
|
The escape symbol
|
\\
|
Table 3.5. Special symbols