module Cont_state:sig..end
typet =Pre_sexp.Cont_state.t=
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Parsing_whitespace | 
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Parsing_atom | 
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Parsing_list | 
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Parsing_sexp_comment | 
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Parsing_block_comment | 
val to_string : t -> stringto_string cont_state converts state of parser continuation
        cont_state to a string.