etc/options

require explicit initialization of options;
more explicit Position operations;

(* :mode=isabelle-options: *)

declare browser_info : bool = false

declare document : bool = true
declare document_format : string = pdf
declare document_variants : string = document
declare document_graph : bool = false

declare threads_limit : int = 1
declare threads_trace : int = 0
declare parallel_proofs : int = 1
declare parallel_proofs_threshold : int = 100

declare print_mode : string = ""

declare proofs : int = 0
declare quick_and_dirty : bool = false

declare timing : bool = false
declare verbose : bool = false

declare condition : string = ""