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//opt/alt/ruby31/share/ruby/error_highlight/formatter.rb
module ErrorHighlight class DefaultFormatter def self.message_for(spot) # currently only a one-line code snippet is supported if spot[:first_lineno] == spot[:last_lineno] indent = spot[:snippet][0...spot[:first_column]].gsub(/[^\t]/, " ") marker = indent + "^" * (spot[:last_column] - spot[:first_column]) "\n\n#{ spot[:snippet] }#{ marker }" else "" end end end def self.formatter Ractor.current[:__error_highlight_formatter__] || DefaultFormatter end def self.formatter=(formatter) Ractor.current[:__error_highlight_formatter__] = formatter end end
