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(define-module (vcomponent formats xcal types)
:use-module (hnh util)
:use-module (hnh util table)
:use-module (vcomponent formats ical types)
:use-module (datetime)
:use-module (calp translation)
:use-module ((calp namespaces) :select (xcal))
:use-module ((sxml namespaced) :select (xml))
:export (get-writer))
(define (write-boolean _ v)
((xml xcal 'boolean) (if v "true" "false")))
(define (write-date _ v)
((xml xcal 'date) (date->string v "~Y-~m-~d")))
(define (write-datetime p v)
((xml xcal 'date-time)
(datetime->string
(table-get p '-X-HNH-ORIGINAL v)
;; 'Z' should be included for UTC,
;; other timezones MUST be specified
;; in the TZID parameter.
"~Y-~m-~dT~H:~M:~S~Z")))
(define (write-time _ v)
((xml xcal 'time) (time->string v "~H:~M:S")))
(define (write-recur _ v)
(apply (xml xcal 'recur)
((@@ (vcomponent recurrence internal) recur-rule->rrule-sxml) v)))
;; sepparate since this text shouldn't be escaped
(define (write-text _ v)
;; TODO out type should be xsd:string.
;; Look into what that means, and escape
;; from there
((xml xcal 'text) v))
(define sxml-writers (make-hash-table))
(for simple-type in '(BINARY DURATION CAL-ADDRESS DURATION FLOAT INTEGER
#| TODO PERIOD |# URI UTC-OFFSET)
(hashq-set! sxml-writers simple-type
(lambda (p v)
((xml xcal (downcase-symbol simple-type))
(((@ (vcomponent formats ical types) get-writer) simple-type)
p v)))))
(hashq-set! sxml-writers 'BOOLEAN write-boolean)
(hashq-set! sxml-writers 'DATE write-date)
(hashq-set! sxml-writers 'DATE-TIME write-datetime)
(hashq-set! sxml-writers 'TIME write-time)
(hashq-set! sxml-writers 'RECUR write-recur)
(hashq-set! sxml-writers 'TEXT write-text)
(define (get-writer type)
(or (hashq-ref sxml-writers type #f)
(error (G_ "No writer for type") type)))
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