SWI-Prolog -- library(option)

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library(option)

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F.2.30 library(option)

dict_options/2	Convert between an option list and a dictionary.
merge_options/3	Merge two option lists.
meta_options/3	Perform meta-expansion on options that are module-sensitive.
option/2	Get an Option from OptionList.
option/3	Get an Option from OptionList.
select_option/3	Get and remove Option from an option list.
select_option/4	Get and remove Option with default value.