In the
exp
property, you can enclose portions of the regular expression in parentheses. In the
replacement
property, you can use:
$0
to identify the entire text that matches the regular expression
$1
to identify the substring that matches the first parenthesized portion of the regular expression
$2
,
$3
, and so forth, to identify the substrings that match the second, third, etc. parenthesized portions
For example, suppose you set:
exp = abc([0-9]+)(def)
replacement = $1
This replaces
abc5624def
with
5624
.
Alternatively, suppose you set:
exp = abc([0-9]+)(def)
replacement = $2ZYX$1
This replaces
abc5624def
with
defZYX5624
.
