8.12
1 Condition
| (require pmsf/condition) | package: pmsf-condition |
1.1 Condition special elements
| (require pmsf/condition/condition) | package: pmsf-condition |
procedure
(special-condition? v) → boolean?
v : any
Examples:
> (special-condition? 'at-most-one) #t
> (special-condition? 'exclusive-or) #t
> (special-condition? 'inclusive-or) #t
procedure
(flag-condition? v) → boolean?
v : any
Examples:
> (flag-condition? "test") #t
> (flag-condition? '(not . "test")) #t
procedure
(condition? v) → boolean?
v : any
Examples:
> (condition? 'at-most-one) #t
> (condition? "test") #t
procedure
(condition-string? v) → boolean?
v : any
Examples:
> (condition-string? "test?") #t
> (condition-string? "!test?") #t
> (condition-string? "??") #t
> (condition-string? "^^") #t
> (condition-string? "||") #t
1.2 Condition struct
| (require pmsf/condition/struct) | package: pmsf-condition |
struct
(struct pcondition (condition contents) #:extra-constructor-name make-pcondition #:transparent) condition : condition? contents : (listof any)
Example:
> (pcondition '(not . "test") '("test")) (pcondition '(not . "test") '("test"))
1.3 Condition conversion
| (require pmsf/condition/convert) | package: pmsf-condition |
procedure
(condition->string input-condition) → condition-string?
input-condition : condition?
Examples:
> (condition->string "test") "test?"
> (condition->string '(not . "test")) "!test?"
> (condition->string 'at-most-one) "??"
> (condition->string 'exclusive-or) "^^"
> (condition->string 'inclusive-or) "||"
procedure
(string->condition input-string) → condition?
input-string : condition-string?
Examples:
> (string->condition "test?") "test"
> (string->condition "!test?") '(not . "test")
> (string->condition "^^") 'exclusive-or
> (string->condition "??") 'at-most-one
> (string->condition "||") 'inclusive-or
1.4 Condition querying
| (require pmsf/condition/query) | package: pmsf-condition |
procedure
(pcondition->contents input-pcondition) → (listof any)
input-pcondition : pcondition?
Extract contents of given pcondition,
all conditions are thrown away.
Example:
> (pcondition->contents (pcondition "gui" (list "client" (pcondition "qt5" (list '(not . "aqua") "X"))))) '("client" (not . "aqua") "X")