Search notes:
Perl regular expressions
character ranges
negative lookahead
,
negative lookbehind
,
Using
/e
to
substitute within matched region
.
named groups
Repeating capturing group vs capturing repeating group
Match between
Non capturing groups
See also
perlretut
Perl
regular expressions
The
-P flag of grep
interprets the given pattern as PCRE (Perl compatible regular expressions) rather than the default of a
basic regular expression
.
The
PHP
function prefix
pcre_
reminds that these functions use Perl regular expressions.
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