class ERBLint::Linters::RightTrim

this linter will force one or the other.
In ERB, right trim can be either =%> or -%>

def autocorrect(_processed_source, offense) 

def autocorrect(_processed_source, offense)
  lambda do |corrector|
    corrector.replace(offense.source_range, @config.enforced_style)
  end
end

def run(processed_source) 

def run(processed_source)
  processed_source.ast.descendants(:erb).each do |erb_node|
    _, _, _, trim_node = *erb_node
    next if trim_node.nil? || trim_node.loc.source == @config.enforced_style
    add_offense(
      trim_node.loc,
      "Prefer #{@config.enforced_style}%> instead of #{trim_node.loc.source}%> for trimming on the right.",
    )
  end
end