;; -*- mode: common-lisp; package: lml2 -*-
;;
-;; $Id: htmlgen.lisp,v 1.16 2003/07/15 21:49:36 kevin Exp $
+;; $Id: htmlgen.lisp,v 1.20 2003/08/02 10:02:51 kevin Exp $
;;
;; copyright (c) 1986-2000 Franz Inc, Berkeley, CA
;; copyright (c) 2003 Kevin Rosenberg
)
(defmacro html (&rest forms &environment env)
- ;; just emit html to the current stream
- (process-html-forms forms env))
+ (post-process-html-forms
+ (process-html-forms forms env)))
+
+(defun post-process-html-forms (input-forms)
+ "KMR: Walk through forms and combine write-strings"
+ (let (res strs last-stream)
+ (flet ((flush-strings ()
+ (when strs
+ (push `(write-string ,strs ,last-stream) res)
+ (setq strs nil)
+ (setq last-stream nil))))
+ (do* ((forms input-forms (cdr forms))
+ (form (car forms) (car forms)))
+ ((null forms)
+ (flush-strings)
+ (nreverse res))
+ (cond
+ ((atom form)
+ (flush-strings)
+ (push form res))
+ ((and (eq (car form) 'cl:write-string)
+ (stringp (cadr form)))
+ (if strs
+ (if (eq last-stream (third form))
+ (setq strs (concatenate 'string strs (second form)))
+ (progn
+ (flush-strings)
+ (setq strs (second form))
+ (setq last-stream (third form))))
+ (progn
+ (setq strs (second form))
+ (setq last-stream (third form)))))
+ (t
+ (flush-strings)
+ (push (post-process-html-forms form) res)))))))
+
(defmacro html-out-stream-check (stream)
;; ensure that a real stream is passed to this function
;; must use <!-- --> syntax
(declare (ignore ent args argsp))
`(progn
+ #+ignore
(write-string "<script language=\"JavaScript\" type=\"text/javascript\">" *html-stream*)
+ (write-string "<script type=\"text/javascript\">" *html-stream*)
(write-char #\newline *html-stream*)
(write-string "//![CDATA[" *html-stream*)
(write-char #\newline *html-stream*)
(named-function html-write-string-function
(lambda (ent args argsp body)
(declare (ignore ent args argsp))
- `(progn ,@(mapcar #'(lambda (bod)
- `(write-string ,bod *html-stream*))
- body))))
+ (if (= (length body) 1)
+ `(write-string ,(car body) *html-stream*)
+ `(progn ,@(mapcar #'(lambda (bod)
+ `(write-string ,bod *html-stream*))
+ body)))))
(named-function html-write-string-print-function
(lambda (ent cmd args form subst unknown stream)