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• Parser

Token-option

Fixtype of optional tokens.

This is an option type introduced by fty::defoption. Note that defoption is just a wrapper for fty::defflexsum, so there are :none and :some member types, a case macro, and so forth.

Member Types

:none → token-option-none

Represents that no token-option is available, i.e., Nothing or None.

:some → token-option-some

An available token-option, i.e., Just val or Some val.

Tokens are defined in token.

Subtopics

Token-optionp

Recognizer for token-option structures.

Token-option-fix

Fixing function for token-option structures.

Token-option-case

Case macro for the different kinds of token-option structures.

Token-option-equiv

Basic equivalence relation for token-option structures.

Token-option-some

An available token-option, i.e., Just val or Some val.

Token-option-none

Represents that no token-option is available, i.e., Nothing or None.