1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
6 ;;;; Purpose: Lisp Markup Language functions
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Aug 2002
10 ;;;; $Id: lml.cl,v 1.1 2002/09/16 01:13:49 kevin Exp $
12 ;;;; This file, part of LML, is Copyright (c) 2002 by Kevin M. Rosenberg
14 ;;;; LML users are granted the rights to distribute and use this software
15 ;;;; as governed by the terms of the GNU General Public License v2
16 ;;;; (http://www.gnu.org/licenses/gpl.html)
17 ;;;; *************************************************************************
19 (declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
22 (defconstant +html4-prologue-string+
24 "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN\">~%"))
26 (defconstant +xml-prologue-string+
28 "<?xml version=\"1.0\" encoding=\"iso-8859-1\" standalone=\"yes\"?>~%"))
30 (defconstant +xhtml-prologue-string+
32 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">~%"))
34 (defvar *print-spaces* nil)
36 (defun reset-indent ()
39 (defun lml-print (str &rest args)
40 (when (streamp *html-output*)
41 (when *print-spaces* (indent-spaces *indent* *html-output*))
43 (apply #'format *html-output* str args)
44 (princ str *html-output*))
45 (when *print-spaces* (format *html-output* "~%"))
48 (defmacro lml-line (str &rest args)
49 `(lml-print ,str ,@args))
51 (defun lml-print-date (date)
52 (lml-print (date-string date)))
54 (defmacro lml-exec-body (&body forms)
62 `(lml-print "~D" ,form))
64 `(lml-print (string-downcase (symbol-name ,form))))
71 (defmacro with-attr-string (tag attr-string &body body)
72 (let ((attr (gensym)))
73 `(let ((,attr ,attr-string))
74 (lml-print "<~(~A~)~A>" ',tag
75 (if (and (stringp ,attr) (plusp (length ,attr)))
76 (format nil "~A" ,attr)
79 (lml-exec-body ,@body)
81 (lml-print "</~(~A~)>" ',tag))))
83 (defun one-keyarg-string (key value)
84 "Return attribute string for keys"
85 (format nil "~(~A~)=\"~A\"" key
88 (string-downcase (symbol-name value)))
94 (defmacro with-keyargs (tag keyargs &body body)
99 (dolist (,kv ',keyargs)
101 (push (one-keyarg-string (car ,kv) it) ,attr)))
102 (with-attr-string ,tag (list-to-spaced-string (nreverse ,attr)) ,@body)))))
104 (defmacro with (tag &rest args)
110 (let ((arg (nth i args))
111 (value (when (< (1+ i) n)
113 (if (keyword-symbol? arg)
115 (push (list arg value) keyargs)
118 `(with-keyargs ,tag ,keyargs ,@(nreverse body))))
121 (defmacro keyargs-string (&rest args)
122 "Returns a string of attributes and values. Result contains a leading space."
123 (let ((keyarg-list '()))
124 (loop for ( name val ) on args by #'cddr
127 (push (one-keyarg-string name val) keyarg-list)))
128 (list-to-spaced-string (nreverse keyarg-list))))
131 (defmacro xhtml-prologue ()
133 (lml-print +xml-prologue-string+)
134 (lml-print +xhtml-prologue-string+)))
136 (defmacro link (dest &body body)
137 `(with a :href ,dest ,@body))
139 (defmacro link-c (class dest &body body)
140 `(with a :href ,dest :class ,class ,@body))
142 (defmacro img (dest &key class id alt style width height align)
144 (eval `(keyargs-string :class ,class :id ,id :alt ,alt :style ,style
145 :width ,width :height ,height :align ,align))))
146 `(lml-print ,(format nil "<img src=\"~A\"~A />" dest attr))))
148 (defmacro input (&key name class id type style size maxlength value)
150 (eval `(keyargs-string :name ,name :class ,class :id ,id :style ,style
151 :size ,size :maxlength ,maxlength :value ,value
153 `(lml-print ,(format nil "<input~A />" attr))))
155 (defmacro meta (name content)
156 `(with meta :name ,name :content ,content))
158 (defmacro meta-key (&key name content http-equiv)
159 `(with meta :name ,name :content ,content :http-equiv ,http-equiv))
162 `(lml-print "<br />"))
164 (defmacro lml-tag-macro (tag)
166 (defmacro ,tag (&body body)
167 `(with ,',tag ,@body))
170 (defmacro lml-tag-class-macro (tag)
171 (let ((name (intern (format nil "~A-~A" tag :c))))
173 (defmacro ,name (&body body)
174 `(with ,',tag :class ,(car body) ,@(cdr body)))
177 (eval-when (:compile-toplevel :load-toplevel :execute)
178 (defparameter *macro-list*
179 '(a div span h1 h2 h3 h4 h5 h6 i b p li ul ol table tbody td tr body head
180 html title pre tt u dl dt dd kbd code form))
181 (export '(link link-c br img input meta meta-key))
182 (export *macro-list*))
184 (loop for i in *macro-list*
186 (eval `(lml-tag-macro ,i))
187 (eval `(lml-tag-class-macro ,i)))
189 (defmacro print-page (title &body body)
195 (defmacro page (out-file &body body)
196 `(with-open-file (*html-output*
197 (lml-file-name ,out-file :output)
199 :if-exists :supersede)
201 (html :xmlns "http://www.w3.org/1999/xhtml"