use strict;
my $str = '[{
storeName: "testName",
address: "12345 Road",
address2: "Suite 500",
city: "testCity",
storeImage: "http://www.testLink.com",
state: "testState",
phone: "999-999-9999",
lat: 99.9999, lng: -99.9999
}]';
my $regex = qr/([{,]\s*)([^"':]+)(\s*:)/p;
my $subst = '\\1"\\2"\\3';
my $result = $str =~ s/$regex/$subst/rg;
print "The result of the substitution is' $result\n";
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html