Pattern Syntax
Pattern
Syntax
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-
Describes
PCRE
regex
syntax
Regular Expression Details
Meta-characters
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Part
of
a
pattern
that
is
in
square
brackets
is
called
a
"character
class".
In
a
character
class
the
only
meta-
characters
are:
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-
The
following
sections
describe
the
use
of
each
of
the
meta-characters.