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(define-module (vcomponent util describe)
:use-module (hnh util)
:use-module (srfi srfi-71)
:use-module (vcomponent base)
:use-module (text util)
:export (describe))
(define* (describe vcomponent optional: (indent 0))
(define ii (make-string indent #\space))
(define iii (make-string (1+ indent) #\space))
(define maxlen (find-max (map
(lambda (a) (string-length (symbol->string a)))
(map car (properties vcomponent)))))
(format #t "~aBEGIN ~a~%" ii (type vcomponent))
(for-each (lambda (kv)
(let ((key values (car+cdr kv)))
(define (out vline)
(format #t "~a~a = ~a"
iii
(trim-to-width (symbol->string key) maxlen)
(trim-to-width
(format #f "~a" (value vline))
(- 80 indent maxlen)))
(awhen (vline-source vline)
(display ((@@ (vcomponent formats ical parse) get-line) it)))
(unless (null? (parameters vline))
(display " ;")
(for (key value) in (parameters vline)
(format #t " ~a=~a" key value)))
(newline))
(if (list? values)
(for-each out values)
(out values))))
(sort* (properties vcomponent)
string<?
;; TODO is key always a symbol?
(compose symbol->string car)))
(for child in (children vcomponent)
(describe child (+ indent 2)))
(format #t "~aEND ~a~%" ii (type vcomponent)))
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