if edge.suffix and ends_with(frag, edge.suffix) then
      Current_state = edge.target
      break
    end
  end
    if edge.prefix and starts_with(frag, edge.prefix) then
      Current_state = edge.target
      break
    end
  end
end
function switch_color_based_on_suffix(frag)
  if Next_state[Current_state] == nil then
    return
  end
  frag = rtrim(frag)
  for _,edge in pairs(Next_state[Current_state]) do

    if edge.prefix and find(frag, edge.prefix, nil, --[[plain]] true) == 1 then

    if edge.prefix and starts_with(frag, edge.prefix) then

    if edge.suffix and rfind(frag, edge.suffix, nil, --[[plain]] true) == #frag - #edge.suffix + 1 then

    if edge.suffix and ends_with(frag, edge.suffix) then

end
function trim(s)
  return s:gsub('^%s+', ''):gsub('%s+$', '')
end
function ltrim(s)
  return s:gsub('^%s+', '')
end
function rtrim(s)
  return s:gsub('%s+$', '')