c:\@Work\Perl\monks>perl -le
"my $hr = { 'o.misc04' => 'xxx' };
 print qq/'$$hr{o.misc04}'/;
"
''

c:\@Work\Perl\monks>perl -le
"use warnings;
 ;;
 my $hr = { 'o.misc04' => 'xxx' };
 print qq/'$$hr{o.misc04}'/;
"
Unquoted string "o" may clash with future reserved word at -e line 1.
Use of uninitialized value in concatenation (.) or string at -e line 1.
''

c:\@Work\Perl\monks>perl -le
"use warnings;
 use strict;
 ;;
 my $hr = { 'o.misc04' => 'xxx' };
 print qq/'$$hr{o.misc04}'/;
"
Bareword "o" not allowed while "strict subs" in use at -e line 1.
Bareword "misc04" not allowed while "strict subs" in use at -e line 1.
Execution of -e aborted due to compilation errors.