;; -*- mode: common-lisp; package: lml2 -*-
;;
-;; $Id: htmlgen.lisp,v 1.2 2003/06/23 20:08:06 kevin Exp $
+;; $Id: htmlgen.lisp,v 1.8 2003/06/24 17:57:17 kevin Exp $
;;
;; copyright (c) 1986-2000 Franz Inc, Berkeley, CA
;; copyright (c) 2003 Kevin Rosenberg
;;
;; Main changes from Allegro version:
-;; - Support XHTML
-;; - lowercase symbol names
+;; - Support XHTML end tags
+;; - lowercase symbol names for attributes
+;; - Add custom tags such as :jscript, :insert-file, :nbsp
;;
;; This code is free software; you can redistribute it and/or
;; modify it under the terms of the version 2.1 of
;; the GNU Lesser General Public License as published by
-;; the Free Software Foundation, as clarified by the AllegroServe
-;; prequel found in license-allegroserve.txt.
+;; the Free Software Foundation, as clarified by the LLGPL
(in-package #:lml2)
-;; html generation
-
(defstruct (html-process (:type list) (:constructor
make-html-process (key has-inverse
macro special
(defmacro html-out-stream-check (stream)
;; ensure that a real stream is passed to this function
- `(let ((.str. ,stream))
- (if* (not (streamp .str.))
- then (error "html-stream must be passed a stream object, not ~s"
- .str.))
- .str.))
+ (let ((s (gensym)))
+ `(let ((,s ,stream))
+ (unless (streamp ,s)
+ (error "html-stream must be passed a stream object, not ~s" ,s))
+ ,s)))
(defmacro html-stream (stream &rest forms)
(defun html-body-key-form (string-code has-inv args body)
;; do what's needed to handle given keywords in the args
;; then do the body
- (if* (and args (atom args))
- then ; single arg
- (return-from html-body-key-form
- (case args
- (:set (if* has-inv
- then `(write-string ,(format nil "<~a>" string-code)
- *html-stream*)
- else `(write-string ,(format nil "<~a />" string-code)
- *html-stream*)))
- (:unset (if* has-inv
- then `(write-string ,(format nil "</~a>" string-code)
- *html-stream*)))
- (t (error "illegal arg ~s to ~s" args string-code)))))
+ (when (and args (atom args))
+ ;; single arg
+ (return-from html-body-key-form
+ (case args
+ (:set (if* has-inv
+ then `(write-string ,(format nil "<~a>" string-code)
+ *html-stream*)
+ else `(write-string ,(format nil "<~a />" string-code)
+ *html-stream*)))
+ (:unset (if* has-inv
+ then `(write-string ,(format nil "</~a>" string-code)
+ *html-stream*)))
+ (t (error "illegal arg ~s to ~s" args string-code)))))
- (if* (not (evenp (length args)))
- then (warn "arg list ~s isn't even" args))
+ (unless (evenp (length args))
+ (warn "arg list ~s isn't even" args))
(if* args
(declare (ignore ent cmd args subst unknown))
(format stream "<script language=\"JavaScript\" type=\"text/javascript\">~%//![CDATA[~%~A~%//]]>~%</script>"
(cadr form)))))
+
+(def-special-html :nbsp
+ (named-function html-nbsp-function
+ (lambda (ent args argsp body)
+ (declare (ignore ent args argsp))
+ (when body
+ (error "can't have a body with :nbsp -- body is ~s" body))
+ `(write-string " " *html-stream*)))
+
+ (named-function html-nbsp-print-function
+ (lambda (ent cmd args form subst unknown stream)
+ (declare (ignore args ent unknown subst))
+ (if* (eq cmd :set)
+ then (write-string " " stream)
+ else (error ":nbsp in an illegal place: ~s" form)))))
+
+(def-special-html :insert-file
+ (named-function html-nbsp-function
+ (lambda (ent args argsp body)
+ (declare (ignore ent args argsp))
+ (unless body
+ (error "must have a body with :insert-file"))
+ `(lml-load-path (car ',body))))
+
+ (named-function html-nbsp-print-function
+ (lambda (ent cmd args form subst unknown stream)
+ (declare (ignore ent unknown subst stream args))
+ (if* (eq cmd :full)
+ then (lml-load-path (cadr form))
+ else (error ":insert-file must be given an argument")))))