snippet     inner
abbr        ---- inner
alias       in
options     word
  ---- inner
    ${1}

snippet     footer
abbr        ---- footer
alias       fo
options     word
  ---- footer
    ${1}

snippet     rule
abbr        rule ... end
options     word
  rule
    ${1}
  end

snippet     debug
abbr        @yydebug = true
options     word
  @yydebug = true