1999-11-03 03:58:07 +00:00
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;;; The contents of this file are subject to the Mozilla Public
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;;; License Version 1.1 (the "License"); you may not use this file
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;;; except in compliance with the License. You may obtain a copy of
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;;; the License at http://www.mozilla.org/MPL/
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;;;
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;;; Software distributed under the License is distributed on an "AS
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;;; IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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;;; implied. See the License for the specific language governing
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;;; rights and limitations under the License.
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;;;
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;;; The Original Code is the Language Design and Prototyping Environment.
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;;;
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;;; The Initial Developer of the Original Code is Netscape Communications
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;;; Corporation. Portions created by Netscape Communications Corporation are
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;;; Copyright (C) 1999 Netscape Communications Corporation. All
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;;; Rights Reserved.
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;;;
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;;; Contributor(s): Waldemar Horwat <waldemar@acm.org>
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1999-01-30 01:19:00 +00:00
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;;;
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;;; HTML output generator
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;;;
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1999-11-03 03:58:07 +00:00
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;;; Waldemar Horwat (waldemar@acm.org)
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1999-01-30 01:19:00 +00:00
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;;;
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;;; ------------------------------------------------------------------------------------------------------
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;;; ELEMENTS
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(defstruct (html-element (:constructor make-html-element (name self-closing indent
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newlines-before newlines-begin newlines-end newlines-after))
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(:predicate html-element?))
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(name nil :type symbol :read-only t) ;Name of the tag
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(self-closing nil :type bool :read-only t) ;True if the closing tag should be omitted
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(indent nil :type integer :read-only t) ;Number of spaces by which to indent this tag's contents in HTML source
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(newlines-before nil :type integer :read-only t) ;Number of HTML source newlines preceding the opening tag
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(newlines-begin nil :type integer :read-only t) ;Number of HTML source newlines immediately following the opening tag
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(newlines-end nil :type integer :read-only t) ;Number of HTML source newlines immediately preceding the closing tag
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(newlines-after nil :type integer :read-only t)) ;Number of HTML source newlines following the closing tag
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; Define symbol to refer to the given html-element.
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(defun define-html (symbol newlines-before newlines-begin newlines-end newlines-after &key self-closing (indent 0))
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(setf (get symbol 'html-element) (make-html-element symbol self-closing indent
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newlines-before newlines-begin newlines-end newlines-after)))
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;;; ------------------------------------------------------------------------------------------------------
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;;; ELEMENT DEFINITIONS
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(define-html 'a 0 0 0 0)
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(define-html 'b 0 0 0 0)
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(define-html 'blockquote 1 0 0 1 :indent 2)
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(define-html 'body 1 1 1 1)
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(define-html 'br 0 0 0 1 :self-closing t)
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(define-html 'code 0 0 0 0)
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(define-html 'dd 1 0 0 1 :indent 2)
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(define-html 'del 0 0 0 0)
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(define-html 'div 1 0 0 1 :indent 2)
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(define-html 'dl 1 0 0 2 :indent 2)
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(define-html 'dt 1 0 0 1 :indent 2)
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(define-html 'em 0 0 0 0)
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1999-02-10 06:40:53 +00:00
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(define-html 'h1 2 0 0 2 :indent 2)
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(define-html 'h2 2 0 0 2 :indent 2)
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(define-html 'h3 2 0 0 2 :indent 2)
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1999-01-30 01:19:00 +00:00
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(define-html 'h4 1 0 0 2 :indent 2)
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(define-html 'h5 1 0 0 2 :indent 2)
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(define-html 'h6 1 0 0 2 :indent 2)
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(define-html 'head 1 1 1 2)
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(define-html 'hr 1 0 0 1 :self-closing t)
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(define-html 'html 0 1 1 1)
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(define-html 'i 0 0 0 0)
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(define-html 'li 1 0 0 1 :indent 2)
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(define-html 'link 1 0 0 1 :self-closing t)
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(define-html 'ol 1 1 1 2 :indent 2)
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(define-html 'p 1 0 0 2)
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1999-02-06 03:20:35 +00:00
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(define-html 'script 0 0 0 0)
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1999-01-30 01:19:00 +00:00
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(define-html 'span 0 0 0 0)
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(define-html 'strong 0 0 0 0)
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(define-html 'sub 0 0 0 0)
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(define-html 'sup 0 0 0 0)
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(define-html 'table 1 1 1 2)
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(define-html 'td 1 0 0 1 :indent 2)
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(define-html 'th 1 0 0 1 :indent 2)
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(define-html 'title 1 0 0 1)
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(define-html 'tr 1 0 0 1 :indent 2)
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(define-html 'u 0 0 0 0)
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(define-html 'ul 1 1 1 2 :indent 2)
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(define-html 'var 0 0 0 0)
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1999-05-10 20:58:56 +00:00
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;;; ------------------------------------------------------------------------------------------------------
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;;; ATTRIBUTES
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;;; The following element attributes require their values to always be in quotes.
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(dolist (attribute '(alt href name))
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(setf (get attribute 'quoted-attribute) t))
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1999-01-30 01:19:00 +00:00
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;;; ------------------------------------------------------------------------------------------------------
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;;; ENTITIES
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(defvar *html-entities-list*
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'((#\& . "amp")
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(#\" . "quot")
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(#\< . "lt")
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(#\> . "gt")
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(nbsp . "nbsp")))
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(defvar *html-entities-hash* (make-hash-table))
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(dolist (entity-binding *html-entities-list*)
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(setf (gethash (first entity-binding) *html-entities-hash*) (rest entity-binding)))
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; Return a freshly consed list of <html-source> that represent the characters in the string except that
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; '&', '<', and '>' are replaced by their entities and spaces are replaced by the entity
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; given by the space parameter (which should be either 'space or 'nbsp).
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(defun escape-html-characters (string space)
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(let ((html-sources nil))
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(labels
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((escape-remainder (start)
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(let ((i (position-if #'(lambda (char) (member char '(#\& #\< #\> #\space))) string :start start)))
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(if i
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(let ((char (char string i)))
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(unless (= i start)
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(push (subseq string start i) html-sources))
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(push (if (eql char #\space) space char) html-sources)
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(escape-remainder (1+ i)))
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(push (if (zerop start) string (subseq string start)) html-sources)))))
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(unless (zerop (length string))
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(escape-remainder 0))
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(nreverse html-sources))))
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1999-05-10 20:58:56 +00:00
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; Escape all content strings in the html-source, while interpreting :nowrap, :wrap, and :none pseudo-tags.
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1999-01-30 01:19:00 +00:00
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; Return a freshly consed list of html-sources.
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(defun escape-html-source (html-source space)
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(cond
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((stringp html-source)
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(escape-html-characters html-source space))
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((or (characterp html-source) (symbolp html-source) (integerp html-source))
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(list html-source))
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((consp html-source)
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(let ((tag (first html-source))
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(contents (rest html-source)))
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1999-05-10 20:58:56 +00:00
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(case tag
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(:none (mapcan #'(lambda (html-source) (escape-html-source html-source space)) contents))
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(:nowrap (mapcan #'(lambda (html-source) (escape-html-source html-source 'nbsp)) contents))
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(:wrap (mapcan #'(lambda (html-source) (escape-html-source html-source 'space)) contents))
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(t (list (cons tag
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(mapcan #'(lambda (html-source) (escape-html-source html-source space)) contents)))))))
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1999-01-30 01:19:00 +00:00
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(t (error "Bad html-source: ~S" html-source))))
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1999-05-10 20:58:56 +00:00
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; Escape all content strings in the html-source, while interpreting :nowrap, :wrap, and :none pseudo-tags.
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1999-01-30 01:19:00 +00:00
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(defun escape-html (html-source)
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(let ((results (escape-html-source html-source 'space)))
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(assert-true (= (length results) 1))
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(first results)))
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;;; ------------------------------------------------------------------------------------------------------
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;;; HTML WRITER
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;; <html-source> has one of the following formats:
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;; <string> ;String to be printed literally
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;; <symbol> ;Named entity
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;; <integer> ;Numbered entity
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;; space ;Space or newline
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;; (<tag> <html-source> ... <html-source>) ;Tag and its contents
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;; ((:nest <tag> ... <tag>) <html-source> ... <html-source>) ;Equivalent to (<tag> (... (<tag> <html-source> ... <html-source>)))
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;;
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;; <tag> has one of the following formats:
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;; <symbol> ;Tag with no attributes
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;; (<symbol> <attribute> ... <attribute>) ;Tag with attributes
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;; :nowrap ;Pseudo-tag indicating that spaces in contents should be non-breaking
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1999-05-10 20:58:56 +00:00
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;; :wrap ;Pseudo-tag indicating that spaces in contents should be breaking
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;; :none ;Pseudo-tag indicating no tag -- the contents should be inlined
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1999-01-30 01:19:00 +00:00
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;;
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;; <attribute> has one of the following formats:
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;; (<symbol> <string>) ;Attribute name and value
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;; (<symbol>) ;Attribute name with omitted value
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(defparameter *html-right-margin* 100)
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1999-02-12 04:57:49 +00:00
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(defparameter *allow-line-breaks-in-tags* nil) ;Allow line breaks in tags between attributes?
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1999-01-30 01:19:00 +00:00
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(defvar *current-html-pos*) ;Number of characters written to the current line of the stream; nil if *current-html-newlines* is nonzero
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(defvar *current-html-pending*) ;String following a space or newline pending to be printed on the current line or nil if none
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(defvar *current-html-indent*) ;Indent to use for emit-html-newlines-and-indent calls
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(defvar *current-html-newlines*) ;Number of consecutive newlines just written to the stream; zero if last character wasn't a newline
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; Flush *current-html-pending* onto the stream.
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(defun flush-current-html-pending (stream)
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(when *current-html-pending*
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(unless (zerop (length *current-html-pending*))
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(write-char #\space stream)
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(write-string *current-html-pending* stream)
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(incf *current-html-pos* (1+ (length *current-html-pending*))))
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(setq *current-html-pending* nil)))
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; Emit n-newlines onto the stream and indent the next line by *current-html-indent* spaces.
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(defun emit-html-newlines-and-indent (stream n-newlines)
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(decf n-newlines *current-html-newlines*)
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(when (plusp n-newlines)
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(flush-current-html-pending stream)
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(dotimes (i n-newlines)
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(write-char #\newline stream))
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(incf *current-html-newlines* n-newlines)
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(setq *current-html-pos* nil)))
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; Write the string to the stream, observing *current-html-pending* and *current-html-pos*.
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(defun write-html-string (stream html-string)
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(unless (zerop (length html-string))
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(unless *current-html-pos*
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(setq *current-html-newlines* 0)
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(write-string (make-string *current-html-indent* :initial-element #\space) stream)
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(setq *current-html-pos* *current-html-indent*))
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(if *current-html-pending*
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(progn
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(setq *current-html-pending* (if (zerop (length *current-html-pending*))
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html-string
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(concatenate 'string *current-html-pending* html-string)))
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(when (>= (+ *current-html-pos* (length *current-html-pending*)) *html-right-margin*)
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(write-char #\newline stream)
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(write-string *current-html-pending* stream)
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(setq *current-html-pos* (length *current-html-pending*))
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(setq *current-html-pending* nil)))
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(progn
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(write-string html-string stream)
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(incf *current-html-pos* (length html-string))))))
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1999-02-06 03:20:35 +00:00
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; Return true if the value string contains a character that would require an attribute to be quoted.
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; For convenience, this returns true if value contains a period, even though strictly speaking periods do
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; not force quoting.
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(defun attribute-value-needs-quotes (value)
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(dotimes (i (length value) nil)
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(let ((ch (char value i)))
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(unless (or (char<= #\0 ch #\9) (char<= #\A ch #\Z) (char<= #\a ch #\z) (char= ch #\-))
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(return t)))))
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1999-01-30 01:19:00 +00:00
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; Emit the html tag with the given tag-symbol (name), attributes, and contents.
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(defun write-html-tag (stream tag-symbol attributes contents)
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(let ((element (assert-non-null (get tag-symbol 'html-element))))
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(emit-html-newlines-and-indent stream (html-element-newlines-before element))
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(write-html-string stream (format nil "<~A" (html-element-name element)))
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(let ((*current-html-indent* (+ *current-html-indent* (html-element-indent element))))
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(dolist (attribute attributes)
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(let ((name (first attribute))
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(value (second attribute)))
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1999-02-12 04:57:49 +00:00
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(write-html-source stream (if *allow-line-breaks-in-tags* 'space #\space))
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1999-01-30 01:19:00 +00:00
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(write-html-string stream (string-downcase (symbol-name name)))
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(when value
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1999-05-10 20:58:56 +00:00
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(write-html-string
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stream
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(format nil
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(if (or (attribute-value-needs-quotes value)
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(get name 'quoted-attribute))
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"=\"~A\""
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"=~A")
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value)))))
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1999-01-30 01:19:00 +00:00
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(write-html-string stream ">")
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(emit-html-newlines-and-indent stream (html-element-newlines-begin element))
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(dolist (html-source contents)
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(write-html-source stream html-source)))
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(unless (html-element-self-closing element)
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(emit-html-newlines-and-indent stream (html-element-newlines-end element))
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(write-html-string stream (format nil "</~A>" (html-element-name element))))
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(emit-html-newlines-and-indent stream (html-element-newlines-after element))))
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; Write html-source to the character stream.
|
|
|
|
|
(defun write-html-source (stream html-source)
|
|
|
|
|
(cond
|
|
|
|
|
((stringp html-source)
|
|
|
|
|
(write-html-string stream html-source))
|
|
|
|
|
((eq html-source 'space)
|
|
|
|
|
(when (zerop *current-html-newlines*)
|
|
|
|
|
(flush-current-html-pending stream)
|
|
|
|
|
(setq *current-html-pending* "")))
|
|
|
|
|
((or (characterp html-source) (symbolp html-source))
|
|
|
|
|
(let ((entity-name (gethash html-source *html-entities-hash*)))
|
|
|
|
|
(cond
|
|
|
|
|
(entity-name
|
|
|
|
|
(write-html-string stream (format nil "&~A;" entity-name)))
|
|
|
|
|
((characterp html-source)
|
|
|
|
|
(write-html-string stream (string html-source)))
|
|
|
|
|
(t (error "Bad html-source ~S" html-source)))))
|
|
|
|
|
((integerp html-source)
|
|
|
|
|
(assert-true (and (>= html-source 0) (< html-source 65536)))
|
|
|
|
|
(write-html-string stream (format nil "&#~D;" html-source)))
|
|
|
|
|
((consp html-source)
|
|
|
|
|
(let ((tag (first html-source))
|
|
|
|
|
(contents (rest html-source)))
|
|
|
|
|
(if (consp tag)
|
|
|
|
|
(write-html-tag stream (first tag) (rest tag) contents)
|
|
|
|
|
(write-html-tag stream tag nil contents))))
|
|
|
|
|
(t (error "Bad html-source: ~S" html-source))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Write the top-level html-source to the character stream.
|
|
|
|
|
(defun write-html (html-source &optional (stream t))
|
|
|
|
|
(with-standard-io-syntax
|
|
|
|
|
(let ((*print-readably* nil)
|
|
|
|
|
(*print-escape* nil)
|
|
|
|
|
(*print-case* :upcase)
|
|
|
|
|
(*current-html-pos* nil)
|
|
|
|
|
(*current-html-pending* nil)
|
|
|
|
|
(*current-html-indent* 0)
|
|
|
|
|
(*current-html-newlines* 9999))
|
|
|
|
|
(write-string "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\">" stream)
|
|
|
|
|
(write-char #\newline stream)
|
|
|
|
|
(write-html-source stream (escape-html html-source)))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Write html to the text file with the given name (relative to the
|
|
|
|
|
; local directory).
|
|
|
|
|
(defun write-html-to-local-file (filename html)
|
1999-11-20 02:16:56 +00:00
|
|
|
(with-open-file (stream (filename-to-semantic-engine-pathname filename)
|
1999-01-30 01:19:00 +00:00
|
|
|
:direction :output
|
|
|
|
|
:if-exists :supersede
|
|
|
|
|
#+mcl :mac-file-creator #+mcl "MOSS")
|
|
|
|
|
(write-html html stream)))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Expand the :nest constructs inside html-source.
|
|
|
|
|
(defun unnest-html-source (html-source)
|
|
|
|
|
(labels
|
|
|
|
|
((unnest-tags (tags contents)
|
|
|
|
|
(assert-true tags)
|
|
|
|
|
(cons (first tags)
|
|
|
|
|
(if (endp (rest tags))
|
|
|
|
|
contents
|
|
|
|
|
(list (unnest-tags (rest tags) contents))))))
|
|
|
|
|
(if (consp html-source)
|
|
|
|
|
(let ((tag (first html-source))
|
|
|
|
|
(contents (rest html-source)))
|
|
|
|
|
(if (and (consp tag) (eq (first tag) ':nest))
|
|
|
|
|
(unnest-html-source (unnest-tags (rest tag) contents))
|
|
|
|
|
(cons tag (mapcar #'unnest-html-source contents))))
|
|
|
|
|
html-source)))
|
|
|
|
|
|
|
|
|
|
|
2000-08-11 06:27:55 +00:00
|
|
|
; Coalesce an A element immediately containing or contained in a SPAN element into one if their attributes
|
|
|
|
|
; are disjoint. Also coalesce SUB and SUP elements immediately containing SPAN elements into one.
|
|
|
|
|
(defun coalesce-elements (html-source)
|
|
|
|
|
(if (consp html-source)
|
|
|
|
|
(let ((tag (first html-source))
|
|
|
|
|
(contents (mapcar #'coalesce-elements (rest html-source))))
|
|
|
|
|
(cond
|
|
|
|
|
((and (consp tag)
|
|
|
|
|
(member (first tag) '(a span))
|
|
|
|
|
contents
|
|
|
|
|
(null (cdr contents))
|
|
|
|
|
(consp (car contents))
|
|
|
|
|
(let ((tag2 (caar contents)))
|
|
|
|
|
(and (consp tag2)
|
|
|
|
|
(member (first tag2) '(a span))
|
|
|
|
|
(not (eq tag tag2))
|
|
|
|
|
(null (intersection (rest tag) (rest tag2) :key #'car)))))
|
|
|
|
|
(cons
|
|
|
|
|
(cons 'a
|
|
|
|
|
(if (eq (first tag) 'a)
|
|
|
|
|
(append (rest tag) (rest (caar contents)))
|
|
|
|
|
(append (rest (caar contents)) (rest tag))))
|
|
|
|
|
(cdar contents)))
|
|
|
|
|
((and (member tag '(sub sup))
|
|
|
|
|
contents
|
|
|
|
|
(null (cdr contents))
|
|
|
|
|
(consp (car contents))
|
|
|
|
|
(consp (caar contents))
|
|
|
|
|
(eq (caaar contents) 'span))
|
|
|
|
|
(cons
|
|
|
|
|
(cons tag (rest (caar contents)))
|
|
|
|
|
(cdar contents)))
|
|
|
|
|
(t (cons tag contents))))
|
|
|
|
|
html-source))
|
|
|
|
|
|
|
|
|
|
|
1999-01-30 01:19:00 +00:00
|
|
|
;;; ------------------------------------------------------------------------------------------------------
|
|
|
|
|
;;; HTML MAPPINGS
|
|
|
|
|
|
|
|
|
|
(defparameter *html-definitions*
|
|
|
|
|
'(((:new-line t) (br))
|
|
|
|
|
|
|
|
|
|
;Misc.
|
1999-02-10 06:40:53 +00:00
|
|
|
(:spc nbsp)
|
1999-01-30 01:19:00 +00:00
|
|
|
(:tab2 nbsp nbsp)
|
|
|
|
|
(:tab3 nbsp nbsp nbsp)
|
1999-05-10 20:58:56 +00:00
|
|
|
(:nbhy "-") ;Non-breaking hyphen
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
;Symbols (-10 suffix means 10-point, etc.)
|
1999-02-06 03:20:35 +00:00
|
|
|
((:bullet 1) (:script "document.write(U_bull)")) ;#x2022
|
1999-01-30 01:19:00 +00:00
|
|
|
((:minus 1) "-")
|
1999-02-06 03:20:35 +00:00
|
|
|
((:not-equal 1) (:script "document.write(U_ne)")) ;#x2260
|
|
|
|
|
((:less-or-equal 1) (:script "document.write(U_le)")) ;#x2264
|
|
|
|
|
((:greater-or-equal 1) (:script "document.write(U_ge)")) ;#x2265
|
|
|
|
|
((:infinity 1) (:script "document.write(U_infin)")) ;#x221E
|
1999-01-30 01:19:00 +00:00
|
|
|
((:left-single-quote 1) #x2018)
|
|
|
|
|
((:right-single-quote 1) #x2019)
|
|
|
|
|
((:left-double-quote 1) #x201C)
|
|
|
|
|
((:right-double-quote 1) #x201D)
|
|
|
|
|
((:left-angle-quote 1) #x00AB)
|
|
|
|
|
((:right-angle-quote 1) #x00BB)
|
1999-02-06 03:20:35 +00:00
|
|
|
((:bottom-10 1) (:script "document.write(U_perp)")) ;#x22A5
|
1999-05-17 05:05:59 +00:00
|
|
|
((:vector-assign-10 1) (:script "document.write(U_larr)")) ;#x2190
|
1999-02-06 03:20:35 +00:00
|
|
|
((:up-arrow-10 1) (:script "document.write(U_uarr)")) ;#x2191
|
|
|
|
|
((:function-arrow-10 2) (:script "document.write(U_rarr)")) ;#x2192
|
|
|
|
|
((:cartesian-product-10 2) (:script "document.write(U_times)")) ;#x00D7
|
|
|
|
|
((:identical-10 2) (:script "document.write(U_equiv)")) ;#x2261
|
1999-05-10 20:58:56 +00:00
|
|
|
((:circle-plus-10 2) (:script "document.write(U_oplus)")) ;#x2295
|
1999-07-27 00:58:01 +00:00
|
|
|
((:empty-10 2) (:script "document.write(U_empty)")) ;#x2205
|
1999-05-17 05:05:59 +00:00
|
|
|
((:intersection-10 1) (:script "document.write(U_cap)")) ;#x2229
|
|
|
|
|
((:union-10 1) (:script "document.write(U_cup)")) ;#x222A
|
1999-02-06 03:20:35 +00:00
|
|
|
((:member-10 2) (:script "document.write(U_isin)")) ;#x2208
|
1999-06-03 20:52:04 +00:00
|
|
|
((:not-member-10 2) (:script "document.write(U_notin)")) ;#x2209
|
1999-02-06 03:20:35 +00:00
|
|
|
((:derives-10 2) (:script "document.write(U_rArr)")) ;#x21D2
|
|
|
|
|
((:left-triangle-bracket-10 1) (:script "document.write(U_lang)")) ;#x2329
|
|
|
|
|
((:right-triangle-bracket-10 1) (:script "document.write(U_rang)")) ;#x232A
|
1999-01-30 01:19:00 +00:00
|
|
|
|
2000-08-11 06:27:55 +00:00
|
|
|
((:alpha 1) (:script "document.write(U_alpha)"))
|
|
|
|
|
((:beta 1) (:script "document.write(U_beta)"))
|
|
|
|
|
((:chi 1) (:script "document.write(U_chi)"))
|
|
|
|
|
((:delta 1) (:script "document.write(U_delta)"))
|
|
|
|
|
((:epsilon 1) (:script "document.write(U_epsilon)"))
|
|
|
|
|
((:phi 1) (:script "document.write(U_phi)"))
|
|
|
|
|
((:gamma 1) (:script "document.write(U_gamma)"))
|
|
|
|
|
((:eta 1) (:script "document.write(U_eta)"))
|
|
|
|
|
((:iota 1) (:script "document.write(U_iota)"))
|
|
|
|
|
((:kappa 1) (:script "document.write(U_kappa)"))
|
|
|
|
|
((:lambda 1) (:script "document.write(U_lambda)"))
|
|
|
|
|
((:mu 1) (:script "document.write(U_mu)"))
|
|
|
|
|
((:nu 1) (:script "document.write(U_nu)"))
|
|
|
|
|
((:omicron 1) (:script "document.write(U_omicron)"))
|
|
|
|
|
((:pi 1) (:script "document.write(U_pi)"))
|
|
|
|
|
((:theta 1) (:script "document.write(U_theta)"))
|
|
|
|
|
((:rho 1) (:script "document.write(U_rho)"))
|
|
|
|
|
((:sigma 1) (:script "document.write(U_sigma)"))
|
|
|
|
|
((:tau 1) (:script "document.write(U_tau)"))
|
|
|
|
|
((:upsilon 1) (:script "document.write(U_upsilon)"))
|
|
|
|
|
((:omega 1) (:script "document.write(U_omega)"))
|
|
|
|
|
((:xi 1) (:script "document.write(U_xi)"))
|
|
|
|
|
((:psi 1) (:script "document.write(U_psi)"))
|
|
|
|
|
((:zeta 1) (:script "document.write(U_zeta)"))
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
;Block Styles
|
2000-09-09 02:14:35 +00:00
|
|
|
(:js2 (div (class "js2")))
|
|
|
|
|
(:es4 (div (class "es4")))
|
1999-01-30 01:19:00 +00:00
|
|
|
(:body-text p)
|
|
|
|
|
(:section-heading h2)
|
|
|
|
|
(:subsection-heading h3)
|
|
|
|
|
(:grammar-header h4)
|
|
|
|
|
(:grammar-rule (:nest :nowrap (div (class "grammar-rule"))))
|
|
|
|
|
(:grammar-lhs (:nest :nowrap (div (class "grammar-lhs"))))
|
|
|
|
|
(:grammar-lhs-last :grammar-lhs)
|
|
|
|
|
(:grammar-rhs (:nest :nowrap (div (class "grammar-rhs"))))
|
|
|
|
|
(:grammar-rhs-last :grammar-rhs)
|
|
|
|
|
(:grammar-argument (:nest :nowrap (div (class "grammar-argument"))))
|
|
|
|
|
(:semantics (:nest :nowrap (p (class "semantics"))))
|
|
|
|
|
(:semantics-next (:nest :nowrap (p (class "semantics-next"))))
|
2001-02-07 05:07:05 +00:00
|
|
|
(:semantic-comment (:nest :nowrap (p (class "semantic-comment"))))
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
;Inline Styles
|
1999-02-06 03:20:35 +00:00
|
|
|
(:script (script (type "text/javascript")))
|
1999-01-30 01:19:00 +00:00
|
|
|
(:symbol (span (class "symbol")))
|
|
|
|
|
(:character-literal code)
|
|
|
|
|
(:character-literal-control (span (class "control")))
|
|
|
|
|
(:terminal (span (class "terminal")))
|
|
|
|
|
(:terminal-keyword (code (class "terminal-keyword")))
|
2000-08-11 06:27:55 +00:00
|
|
|
(:nonterminal (span (class "nonterminal")))
|
1999-01-30 01:19:00 +00:00
|
|
|
(:nonterminal-attribute (span (class "nonterminal-attribute")))
|
|
|
|
|
(:nonterminal-argument (span (class "nonterminal-argument")))
|
|
|
|
|
(:semantic-keyword (span (class "semantic-keyword")))
|
|
|
|
|
(:type-expression (span (class "type-expression")))
|
|
|
|
|
(:type-name (span (class "type-name")))
|
|
|
|
|
(:field-name (span (class "field-name")))
|
|
|
|
|
(:global-variable (span (class "global-variable")))
|
|
|
|
|
(:local-variable (span (class "local-variable")))
|
|
|
|
|
(:action-name (span (class "action-name")))
|
1999-05-10 20:58:56 +00:00
|
|
|
(:text :wrap)
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
;Specials
|
|
|
|
|
(:invisible del)
|
|
|
|
|
((:but-not 6) (b "except"))
|
1999-06-03 20:52:04 +00:00
|
|
|
((:begin-negative-lookahead 13) "[lookahead" :not-member-10 "{")
|
|
|
|
|
((:end-negative-lookahead 2) "}]")
|
2000-08-22 04:29:01 +00:00
|
|
|
((:line-break 12) "[line" nbsp "break]")
|
1999-11-02 01:44:24 +00:00
|
|
|
((:no-line-break 15) "[no" nbsp "line" nbsp "break]")
|
1999-01-30 01:19:00 +00:00
|
|
|
(:subscript sub)
|
|
|
|
|
(:superscript sup)
|
|
|
|
|
(:plain-subscript :subscript)
|
|
|
|
|
((:action-begin 1) "[")
|
|
|
|
|
((:action-end 1) "]")
|
|
|
|
|
((:vector-begin 1) (b "["))
|
|
|
|
|
((:vector-end 1) (b "]"))
|
|
|
|
|
((:empty-vector 2) (b "[]"))
|
2001-02-07 05:07:05 +00:00
|
|
|
((:vector-construct 1) (b "|"))
|
1999-05-10 20:58:56 +00:00
|
|
|
((:vector-append 2) :circle-plus-10)
|
1999-01-30 01:19:00 +00:00
|
|
|
((:tuple-begin 1) (b :left-triangle-bracket-10))
|
|
|
|
|
((:tuple-end 1) (b :right-triangle-bracket-10))
|
|
|
|
|
((:true 4) (:global-variable "true"))
|
|
|
|
|
((:false 5) (:global-variable "false"))
|
2001-02-01 03:40:56 +00:00
|
|
|
((:unique 6) (:semantic-keyword "unique"))
|
1999-01-30 01:19:00 +00:00
|
|
|
))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; ------------------------------------------------------------------------------------------------------
|
|
|
|
|
;;; HTML STREAMS
|
|
|
|
|
|
|
|
|
|
(defstruct (html-stream (:include markup-stream)
|
2000-09-09 02:14:35 +00:00
|
|
|
(:constructor allocate-html-stream (env head tail level logical-position enclosing-styles anchors))
|
1999-01-30 01:19:00 +00:00
|
|
|
(:copier nil)
|
1999-05-10 20:58:56 +00:00
|
|
|
(:predicate html-stream?))
|
2000-09-09 02:14:35 +00:00
|
|
|
(enclosing-styles nil :type list :read-only t) ;A list of enclosing styles
|
1999-05-10 20:58:56 +00:00
|
|
|
(anchors nil :type list :read-only t)) ;A mutable cons cell for accumulating anchors at the beginning of a paragraph
|
|
|
|
|
; ;or nil if not inside a paragraph.
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
(defmethod print-object ((html-stream html-stream) stream)
|
|
|
|
|
(print-unreadable-object (html-stream stream :identity t)
|
|
|
|
|
(write-string "html-stream" stream)))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Make a new, empty, open html-stream with the given definitions for its markup-env.
|
2000-09-09 02:14:35 +00:00
|
|
|
(defun make-html-stream (markup-env level logical-position enclosing-styles anchors)
|
1999-01-30 01:19:00 +00:00
|
|
|
(let ((head (list nil)))
|
2000-09-09 02:14:35 +00:00
|
|
|
(allocate-html-stream markup-env head head level logical-position enclosing-styles anchors)))
|
1999-01-30 01:19:00 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
; Make a new, empty, open, top-level html-stream with the given definitions
|
1999-05-10 20:58:56 +00:00
|
|
|
; for its markup-env. If links is true, allow links.
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(defun make-top-level-html-stream (html-definitions links)
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1999-01-30 01:19:00 +00:00
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(let ((head (list nil))
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1999-05-10 20:58:56 +00:00
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(markup-env (make-markup-env links)))
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1999-01-30 01:19:00 +00:00
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(markup-env-define-alist markup-env html-definitions)
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2000-09-09 02:14:35 +00:00
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(allocate-html-stream markup-env head head *markup-stream-top-level* nil nil nil)))
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1999-01-30 01:19:00 +00:00
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; Return the approximate width of the html item; return t if it is a line break.
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; Also allow html tags as long as they do not contain line breaks.
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(defmethod markup-group-width ((html-stream html-stream) item)
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(if (consp item)
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(reduce #'+ (rest item) :key #'(lambda (subitem) (markup-group-width html-stream subitem)))
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(markup-width html-stream item)))
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; Create a top-level html-stream and call emitter to emit its contents.
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; emitter takes one argument -- an html-stream to which it should emit paragraphs.
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1999-05-10 20:58:56 +00:00
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; Return the top-level html-stream. If links is true, allow links.
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(defun depict-html-top-level (title links emitter)
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(let ((html-stream (make-top-level-html-stream *html-definitions* links)))
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1999-01-30 01:19:00 +00:00
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(markup-stream-append1 html-stream 'html)
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(depict-block-style (html-stream 'head)
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(depict-block-style (html-stream 'title)
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(markup-stream-append1 html-stream title))
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1999-05-10 20:58:56 +00:00
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(markup-stream-append1 html-stream '((link (rel "stylesheet") (href "../styles.css"))))
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(markup-stream-append1 html-stream '((script (type "text/javascript") (language "JavaScript1.2") (src "../unicodeCompatibility.js")))))
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1999-01-30 01:19:00 +00:00
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(depict-block-style (html-stream 'body)
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(funcall emitter html-stream))
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1999-05-10 20:58:56 +00:00
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(let ((links (markup-env-links (html-stream-env html-stream))))
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(warn-missing-links links))
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1999-01-30 01:19:00 +00:00
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html-stream))
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; Create a top-level html-stream and call emitter to emit its contents.
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; emitter takes one argument -- an html-stream to which it should emit paragraphs.
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; Write the resulting html to the text file with the given name (relative to the
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; local directory).
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1999-05-10 20:58:56 +00:00
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; If links is true, allow links. If external-link-base is also provided, emit links for
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; predefined items and assume that they are located on the page specified by the
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; external-link-base string.
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(defun depict-html-to-local-file (filename title links emitter &key external-link-base)
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(let* ((*external-link-base* external-link-base)
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(top-html-stream (depict-html-top-level title links emitter)))
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(write-html-to-local-file filename (markup-stream-output top-html-stream)))
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filename)
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1999-01-30 01:19:00 +00:00
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; Return the markup accumulated in the markup-stream after expanding all of its macros.
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; The markup-stream is closed after this function is called.
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(defmethod markup-stream-output ((html-stream html-stream))
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2000-08-11 06:27:55 +00:00
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(coalesce-elements
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(unnest-html-source
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(markup-env-expand (markup-stream-env html-stream) (markup-stream-unexpanded-output html-stream) '(:none :nowrap :wrap :nest)))))
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1999-01-30 01:19:00 +00:00
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2000-09-09 02:14:35 +00:00
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(defmethod depict-block-style-f ((html-stream html-stream) block-style flatten emitter)
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1999-01-30 01:19:00 +00:00
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(assert-true (<= (markup-stream-level html-stream) *markup-stream-paragraph-level*))
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2000-09-09 02:14:35 +00:00
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(assert-true (symbolp block-style))
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(if (or (null block-style)
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(and flatten (member block-style (html-stream-enclosing-styles html-stream))))
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(funcall emitter html-stream)
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(let ((inner-html-stream (make-html-stream (markup-stream-env html-stream)
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*markup-stream-paragraph-level*
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nil
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(cons block-style (html-stream-enclosing-styles html-stream))
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nil)))
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(markup-stream-append1 inner-html-stream block-style)
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(prog1
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(funcall emitter inner-html-stream)
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(let ((inner-output (markup-stream-unexpanded-output inner-html-stream)))
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(when (or (not flatten) (cdr inner-output))
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(markup-stream-append1 html-stream inner-output)))))))
|
1999-01-30 01:19:00 +00:00
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(defmethod depict-paragraph-f ((html-stream html-stream) paragraph-style emitter)
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(assert-true (= (markup-stream-level html-stream) *markup-stream-paragraph-level*))
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(assert-true (and paragraph-style (symbolp paragraph-style)))
|
1999-05-10 20:58:56 +00:00
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(let* ((anchors (list 'anchors))
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(inner-html-stream (make-html-stream (markup-stream-env html-stream)
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*markup-stream-content-level*
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(make-logical-position)
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2000-09-09 02:14:35 +00:00
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(cons paragraph-style (html-stream-enclosing-styles html-stream))
|
1999-05-10 20:58:56 +00:00
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|
anchors)))
|
1999-01-30 01:19:00 +00:00
|
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|
(prog1
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(funcall emitter inner-html-stream)
|
1999-05-10 20:58:56 +00:00
|
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|
(markup-stream-append1 html-stream (cons paragraph-style
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(nreconc (cdr anchors)
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(markup-stream-unexpanded-output inner-html-stream)))))))
|
1999-01-30 01:19:00 +00:00
|
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(defmethod depict-char-style-f ((html-stream html-stream) char-style emitter)
|
|
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(assert-true (>= (markup-stream-level html-stream) *markup-stream-content-level*))
|
|
|
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|
(assert-true (and char-style (symbolp char-style)))
|
1999-05-10 20:58:56 +00:00
|
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|
(let ((inner-html-stream (make-html-stream (markup-stream-env html-stream)
|
|
|
|
|
*markup-stream-content-level*
|
|
|
|
|
(markup-stream-logical-position html-stream)
|
2000-09-09 02:14:35 +00:00
|
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|
(cons char-style (html-stream-enclosing-styles html-stream))
|
1999-05-10 20:58:56 +00:00
|
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|
(html-stream-anchors html-stream))))
|
1999-01-30 01:19:00 +00:00
|
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|
(markup-stream-append1 inner-html-stream char-style)
|
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|
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|
(prog1
|
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|
(funcall emitter inner-html-stream)
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|
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(markup-stream-append1 html-stream (markup-stream-unexpanded-output inner-html-stream)))))
|
|
|
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|
2000-09-09 02:14:35 +00:00
|
|
|
(defmethod ensure-no-enclosing-style ((html-stream html-stream) style)
|
|
|
|
|
(when (member style (html-stream-enclosing-styles html-stream))
|
|
|
|
|
(cerror "Ignore" "Style ~S should not be in effect" style)))
|
|
|
|
|
|
|
|
|
|
|
1999-05-10 20:58:56 +00:00
|
|
|
(defmethod depict-anchor ((html-stream html-stream) link-prefix link-name duplicate)
|
|
|
|
|
(assert-true (= (markup-stream-level html-stream) *markup-stream-content-level*))
|
|
|
|
|
(let* ((links (markup-env-links (html-stream-env html-stream)))
|
|
|
|
|
(name (record-link-definition links link-prefix link-name duplicate)))
|
|
|
|
|
(when name
|
|
|
|
|
(push (list (list 'a (list 'name name))) (cdr (html-stream-anchors html-stream))))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(defmethod depict-link-reference-f ((html-stream html-stream) link-prefix link-name external emitter)
|
|
|
|
|
(assert-true (= (markup-stream-level html-stream) *markup-stream-content-level*))
|
|
|
|
|
(let* ((links (markup-env-links (html-stream-env html-stream)))
|
|
|
|
|
(href (record-link-reference links link-prefix link-name external)))
|
|
|
|
|
(if href
|
|
|
|
|
(let ((inner-html-stream (make-html-stream (markup-stream-env html-stream)
|
|
|
|
|
*markup-stream-content-level*
|
|
|
|
|
(markup-stream-logical-position html-stream)
|
2000-09-09 02:14:35 +00:00
|
|
|
(html-stream-enclosing-styles html-stream)
|
1999-05-10 20:58:56 +00:00
|
|
|
(html-stream-anchors html-stream))))
|
|
|
|
|
(markup-stream-append1 inner-html-stream (list 'a (list 'href href)))
|
|
|
|
|
(prog1
|
|
|
|
|
(funcall emitter inner-html-stream)
|
|
|
|
|
(markup-stream-append1 html-stream (markup-stream-unexpanded-output inner-html-stream))))
|
|
|
|
|
(funcall emitter html-stream))))
|
|
|
|
|
|
|
|
|
|
|
1999-01-30 01:19:00 +00:00
|
|
|
#|
|
|
|
|
|
(write-html
|
|
|
|
|
'(html
|
|
|
|
|
(head
|
|
|
|
|
(:nowrap (title "This is my title!<>")))
|
|
|
|
|
((body (atr1 "abc") (beta) (qq))
|
|
|
|
|
"My page this is " (br) (p))))
|
|
|
|
|
|#
|
