#!/usr/bin/env perl -l

my $foo = "WRONG";
my $bar = 'right';

# variables can have braces
print "** variables with braces";
print ${bar};
print;

# double-quoted -- $bar should be highlighted
print "** double-quoted strings";
print "this is $bar";
print qq{this is $bar};
print qq{some${bar}thing};
print qq~this is $bar~;
print qq(this is $bar);
print qq(this is (this is $bar));
print qq{this is {this is (this is $bar)}};
print qx{echo -n 'this is $bar'};
print `echo -n this is $bar`;
print qq'this is $bar';
print eval{qqwrongw}; # should not be a string\n
print eval{qq{right}};
print <<END;
this is $bar
END
# END should not be a string
# print << END;
# this is $bar
# END

# single-quoted -- $foo should *not* be highlighted
print "** single-quoted strings";
print 'this is $foo';
print q{this is $foo};
print q~this is $foo~;
print q/this is $foo/;
print q{this is {nested $foo}};
print qx'echo -n this is eaten by the shell: $foo';
print(join(" ", qw/this is $foo/));
print(join(" ", qw'this is $foo'));
print eval{qwrongw}; # should not be a string
print <<'END';
this is $foo
END

# regex
m/bar/;
m{bar};
m(bar);
m[bar];
qr/this is $bar/; # interpolated
qr'this is $foo'; # not interpolated
qr{this is monkey};
qr(this is monkey);
eval{qrthisismonkeyt}; # should not be a regex
s{bar}{this is $bar}; # second part should be a double-quoted string
s'bar'this is $foo';  # second part should be a single-quoted string
s/some$bar/is interpolated/;
s/some$/is not interpolated/;
s/bar/this is $bar/;
s/bar/$m = "monkey"/e; # second part should be an expression
s/bar/foo/;  # ditto
tr{abc}{def}; #too much work

s/bar/foo/ #comment
;
s{bar}{foo} #comment
;