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+@node VComponent
+@section (vcomponent)
+
+@defvr {Configuration Variable} calendar-files
+List of filepaths
+@end defvr
+
+@defvr {Configuration Variable} default-calendar
+@end defvr
+
+@c ===== Concepts =====
+
+@c - internal fields
+@c DATA layout
+@c how does multiple value work?
+
+@c ===== BASE =====
+
+@deftp {Record Type} <vline>
+
+@c - key
+@c - value
+@c - parameters
+@c - source
+
+@defun make-vline key value [ht=(make-hash-table)]
+@var{ht} is the hash table storing the parameters, can be explicitly
+given if need for optimizations arrises.
+@end defun
+
+@defun vline? x
+@end defun
+
+@defun vline-key vline
+@end defun
+
+@deffn {Slot} vline-source vline
+@end deffn
+
+@deffn {Slot} value vline
+@end deffn
+
+@deffn {Slot} param vline key
+@end deffn
+
+@defun delete-parameter! vline key
+@end defun
+
+@defun parameters vline
+Key a list of all parameters
+@example
+((key value) ...)
+@end example
+@end defun
+
+@end deftp
+
+
+@deftp {Record Type} <vcomponent>
+
+@defun vcomponent? x
+@end defun
+
+@defun make-vcomponent [type='VIRTUAL]
+@end defun
+
+@defun children vcomponent
+Returns all direct children of vcomponent, as a list of vcomponents.
+@end defun
+
+@deffn {Slot} parent vcomonent
+@end deffn
+
+@defun type vcomponent
+Returns the type of this vcomponent, as a symbol. Probably one of
+@code{VCALENDAR}, @code{VEVENT}, ...
+@end defun
+
+@defun add-child! parent child
+Adds child to the parents child list, but also updates the child to
+have parent in its parent slot
+@end defun
+
+@deffn {Prop} prop* vcomponent key
+@deffnx {Prop} prop vcomponent key
+@var{prop*} return the vline object, while @var{prop} is equivalent to
+@lisp
+(value (prop* vcomponent key))
+@end lisp
+@end deffn
+
+@deffn (extract field) vcomponent
+@deffnx (extract* field) vcomponent
+Curried version of @var{prop}.
+@end deffn
+
+@defun delete-property! component key
+@end defun
+
+@defun properties comopnent
+@example
+((key . value) ...)
+@end example
+@end defun
+
+@end deftp
+
+@defun copy-vcomponent vcomponent
+@end defun
+
+
+@defun x-property? symb
+Does symbol start with ``X-''?
+@end defun
+
+@defun internal-field? symb [prefix="-"]
+@end defun