regex101: Remove comments and empty lines

Regular Expression

^\s*(#|$).*$

New

# Configuration section config.
# How LVM configuration settings are handled.
config {

        # Configuration option config/checks.
        # If enabled, any LVM configuration mismatch is reported.
        # This implies checking that the configuration key is understood by
        # LVM and that the value of the key is the proper type. If disabled,
        # any configuration mismatch is ignored and the default value is used
        # without any warning (a message about the configuration key not being
        # found is issued in verbose mode only).
        checks = 1

        # Configuration option config/abort_on_errors.
        # Abort the LVM process if a configuration mismatch is found.
        abort_on_errors = 0

        # Configuration option config/profile_dir.
        # Directory where LVM looks for configuration profiles.
        profile_dir = "/etc/lvm/profile"
}

Extraction

# Configuration section config.
# How LVM configuration settings are handled.
config {

        # Configuration option config/checks.
        # If enabled, any LVM configuration mismatch is reported.
        # This implies checking that the configuration key is understood by
        # LVM and that the value of the key is the proper type. If disabled,
        # any configuration mismatch is ignored and the default value is used
        # without any warning (a message about the configuration key not being
        # found is issued in verbose mode only).
        checks = 1

        # Configuration option config/abort_on_errors.
        # Abort the LVM process if a configuration mismatch is found.
        abort_on_errors = 0

        # Configuration option config/profile_dir.
        # Directory where LVM looks for configuration profiles.
        profile_dir = "/etc/lvm/profile"
}