80 lines
1.7 KiB
Common Lisp
80 lines
1.7 KiB
Common Lisp
;;;; cl-scopes/web/dom - "Data Output Model" = simple and dedicated HTML generator
|
|
|
|
(defpackage :scopes/web/dom
|
|
(:use :common-lisp)
|
|
(:local-nicknames (:util :scopes/util)
|
|
(:alx :alexandria))
|
|
(:export #:render #:text
|
|
#:dl #:link))
|
|
|
|
(in-package :scopes/web/dom)
|
|
|
|
;;;; basic / common stuff
|
|
|
|
(defvar *output* (make-string-output-stream))
|
|
|
|
(defmacro render (&body body)
|
|
`(let ((*output* (make-string-output-stream)))
|
|
,@body
|
|
(get-output-stream-string *output*)))
|
|
|
|
(defmacro text (s)
|
|
`(put-string (string ,s)))
|
|
|
|
(defmacro put-string (s)
|
|
`(write-string ,s *output*))
|
|
|
|
(defmacro put-char (c)
|
|
`(write-char ,c *output*))
|
|
|
|
(defmacro element (tag attrs &body body)
|
|
`(progn
|
|
(start ,tag ,attrs)
|
|
,@body
|
|
(end ,tag)))
|
|
|
|
(defun put-attrs (plist)
|
|
(loop for (key val . r) on plist by #'cddr do
|
|
(put-char #\Space)
|
|
(when val
|
|
(put-string (string-downcase key))
|
|
(when (not (eq val t))
|
|
(put-string "=\"")
|
|
(put-string (attr-str key val))
|
|
(put-char #\")))))
|
|
|
|
(defun attr-str (key val)
|
|
(case key
|
|
((:id :class) (util:to-string val))
|
|
(t (string val))))
|
|
|
|
(defun start (tag &optional attrs)
|
|
(put-char #\<)
|
|
(put-string tag)
|
|
(put-attrs attrs)
|
|
(put-char #\>))
|
|
|
|
(defun end (tag)
|
|
(put-string "</")
|
|
(put-string tag)
|
|
(put-char #\>))
|
|
|
|
(defun newline ()
|
|
(put-char #\Newline))
|
|
|
|
;;;; tag-specific renderers
|
|
|
|
(defun dl (attrs plist)
|
|
(element "dl" attrs
|
|
(loop for (key val . r) on plist by #'cddr do
|
|
(element "dt" nil (put-string (string-downcase key)))
|
|
(dd nil val))))
|
|
|
|
(defun dd (attrs v)
|
|
(if (atom v)
|
|
(setf v (list v)))
|
|
(dolist (el v)
|
|
(element "dd" attrs (text el))))
|
|
|
|
(defmacro link (attrs &body body)
|
|
`(element "a" ,attrs ,@body))
|