Twig trim filter

 The trim filter strips whitespace (or other characters) from the beginning and end of a string.

{{ '  I like Twig.  '|trim }}

{# outputs 'I like Twig.' #}

{{ '  I like Twig.'|trim('.') }}

{# outputs '  I like Twig' #}

{{ '  I like Twig.  '|trim(side='left') }}

{# outputs 'I like Twig.  ' #}

{{ '  I like Twig.  '|trim(' ', 'right') }}

{# outputs '  I like Twig.' #}

Arguments

character_mask: The characters to strip

side: The default is to strip from the left and the right (`both`) sides, but `left` and `right` will strip from either the left side or right side only