Re: Specific substitution in regular expressions

[jonadab]

in reply to Specific substitution in regular expressions

Lookbehind and lookahead will work in the specific example you give, but the more general solution, which will still work if the surrounding stuff can vary in width, is to capture the surrounding stuff and substitute it back:

$line =~ s/(12345)(99)(1234599)/$1$replace$3/;