'<pagebreak>',
'&', quotemeta("\n"),
'"', '\$', '%', '_', '#', quotemeta('^'),
- '{', '}', '<', '>', '£', "\r"
+ '{', '}', '<', '>', '£', "\r", '±',
],
quotemeta("\\") => '\\textbackslash ',
'<pagebreak>' => '',
'>' => '$>$',
'£' => '\pounds ',
"\r" => "",
+ '±' => '$\pm$',
quotemeta('^') => '\^\\',
quotemeta("\n") => '\newline '
);