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;; limitations under the License.
;;
;; Author contact information:
;; joel@jdueck.net
;; https://joeldueck.com
;; -------------------------------------------------------------------------
(require pollen/core
pollen/pagetree
net/uri-codec
gregor
txexpr
racket/list
racket/string)
;; Convenience functions for YYYY-MM-DD date strings
(require gregor
racket/string)
(require rackunit)
(define test-metas (hash 'name "Fiver" 'size "Small"))
(define test-attrs '([name "Hazel"] [rank "Chief"]))
(parameterize ([current-metas test-metas])
(check-equal? (maybe-meta 'name) "Fiver") ; present meta
(check-equal? (maybe-meta 'age) "") ; missing meta
(check-equal? (maybe-meta 'age 2) 2)) ; alternate default value
(check-equal? (attr-present? 'name test-attrs) #t)
(check-equal? (attr-present? 'dingus test-attrs) #f)
(check-equal? (maybe-attr 'rank test-attrs) "Chief")
(check-equal? (maybe-attr 'dingus test-attrs) "")
(check-equal? (maybe-attr 'dingus test-attrs "zippy") "zippy"))
;; Convert, e.g., "* thoroughly recanted" into (values "*" "thoroughly recanted")
(define (disposition-values str)
(cond [(string=? "" str) (values "" "")]
[else (let ([splut (string-split str)])
(values (car splut) (string-join (cdr splut))))]))
;; The format of a note’s ID is “HTML-driven” (used as an anchor link) but is included
;; here since it also serves as a primary key in the DB.
(define (build-note-id txpr)
(string-append "#"
(maybe-attr 'date (get-attrs txpr))
"_"
(uri-encode (maybe-attr 'author (get-attrs txpr) default-authorname))))
;; Extract the last disposition (if any), and the ID of the disposing note, out of a list of notes
(define (notes->last-disposition-values txprs)
(define (contains-disposition? tx) (attr-present? 'disposition (get-attrs tx)))
(define disp-notes (filter contains-disposition? txprs))
(cond [(not (empty? disp-notes))
(define latest-disposition-note (last disp-notes))
(values (attr-ref latest-disposition-note 'disposition)
(build-note-id latest-disposition-note))]
[else (values "" "")]))
(provide (all-defined-out))
;; These functions ignore everything after the first space!
;; These functions ignore everything after the first space in the input!
(define (ymd->dateformat ymd-string dateformat)
(~t (iso8601->date (car (string-split ymd-string))) dateformat))
(define (ymd->english ymd-string)
(ymd->dateformat ymd-string "MMMM d, yyyy"))
(module+ test
(require rackunit)
|
