Regular Expression Pocket Reference

Name

split

Synopsis

split /PATTERN/, EXPR, LIMIT
split /PATTERN/, EXPR
split /PATTERN/
split

Return a list of substrings surrounding matches of PATTERN in EXPR. If LIMIT, the list contains substrings surrounding the first LIMIT matches. The pattern argument is a match operator, so use m if you want alternate delimiters (e.g., split m{PATTERN}). The match permits the same modifiers as m{}. Table 1-8 lists the after-match variables.

Table 1-8. After-match variables

Variable	Meaning
$1, $2, ...	Captured submatches.
@-	$-[0] offset of start of match. $-[n] offset of start of $n.
@+	$+[0] offset of end of match. $+[n] offset of end of $n.
$+	Last parenthesized match.
$'	Text before match. Causes all regular expressions to be slower. Same as substr($input, 0, $-[0]).
$&	Text of match. Causes all regular expressions to be slower. Same as substr($input, $-[0], $+[0] - $-[0]).
$'	Text after match. Causes all regular expressions to be slower. Same as substr($input, $+[0]).
$^N	Text of most recently closed capturing parentheses.
$*	If true, /m is assumed for all matches without a /s.
$^R	The result value of the most recently executed code construct within a pattern match.