XSLT 2.0 and XPath 2.0 Programmer's Reference, 4th Edition (818 page)

'
(entity reference)

"
(entity reference)

(entity reference)

$

as regex metacharacter.
See also
metacharacters

in replacement string

in variable references

.
symbol

//
and

context item expression

ContextItemExpr

decimal point

different roles of

function body and

regex metacharacter.
See
metacharacters

separator character

as thousands separator

undefined

,
symbol