8.16.0.4
19 Versions
| (require denxi/version) | package: denxi |
A package definition has a version.
A version is a combination of an edition and a revision.
An edition is a non-empty string that names a target audience.
An edition has at least one revision.
A revision is an implementation of an edition. We select a revision using a revision number or a revision name.
A revision number is an exact non-negative integer that starts at 0.
A revision name is a string alias for a revision number that contains at least one non-digit. A revision name may repeat across but not within editions.
value
Returns #t if the input value is useable as a revision number.
Returns #t if the input value is a string that, when converted to a
number, is useable as a revision number.
procedure
v : any/c
procedure
v : revision-number-variant?
Returns a revision number in terms of a variant type.
procedure
v : revision-number-variant?
Returns a revision number string in terms of a variant type.
procedure
(make-minimum-revision-number boundary #:exclusive? exclusive?) → revision-number? boundary : revision-number? exclusive? : any/c
Returns a revision number, interpreting another as a minimum boundary
for an integer interval. If exclusive? is #f, then
the return value is simply boundary. Otherwise, it’s
(add1 boundary).
procedure
(make-maximum-revision-number boundary #:exclusive? exclusive?) → revision-number? boundary : revision-number? exclusive? : any/c
Returns a revision number, interpreting another as a maximum boundary
for an integer interval. If exclusive? is #f, then
the return value is simply boundary. Otherwise, it’s
(max 0 (sub1 boundary)).
procedure
(find-latest-available-revision-number available? lo hi) → (or/c #f revision-number?) available? : (-> revision-number? any/c) lo : revision-number? hi : revision-number?
Finds the largest element of the inclusive interval {lo .. hi} where available? returns a true value. Returns
#f if no such element exists.
procedure
(find-oldest-available-revision-number available? lo hi) → (or/c #f revision-number?) available? : (-> revision-number? any/c) lo : revision-number? hi : revision-number?
Finds the smallest element of the inclusive interval {lo .. hi} where available? returns a true value. Returns
#f if no such element exists.