class FanficsmeBlock < Parslet::Parser
# elementary rules
rule(:eol) { str("r") | str("n") | str("rn") }
rule(:lchar) { match("[^rn]") }
rule(:space) { match(" ") }
rule(:lspace) { match("[[:blank:]]") }
rule(:exspace) { match("[[:space:]]") }
rule(:eof) { any.absent? }
rule(:eolf) { eol | eof}

# basic rules
rule(:sline) { lspace.repeat(1).as(:line) >> eolf }
rule(:bline) { str("").as(:line) >> eol }
rule(:bsline) { bline | sline }
rule(:line) { lchar.repeat(1).as(:line) >> eolf }
rule(:aline) { bsline | line }

# complex rules
rule(:block) { aline }
rule(:text) { block.repeat(1) }
root(:text)
end

class FanficsmeBlock
def parse(str)
str.gsub!(/rn/, "n")
str.gsub!(/r/, "n")

arr = str.split("n")
arr.map! { |s| {line: s} }
end
end