def parse_typographic_syms
@src.pos += @src.matched_size
val = TYPOGRAPHIC_SYMS_SUBST[@src.matched]
if val.kind_of?(Symbol)
@tree.children << Element.new(:typographic_sym, val)
elsif @src.matched == '\\<<'
@tree.children << Element.new(:entity, ::Kramdown::Utils::Entities.entity('lt'))
@tree.children << Element.new(:entity, ::Kramdown::Utils::Entities.entity('lt'))
else
@tree.children << Element.new(:entity, ::Kramdown::Utils::Entities.entity('gt'))
@tree.children << Element.new(:entity, ::Kramdown::Utils::Entities.entity('gt'))
end
end