HEAD tags

HTML

Delimits the entire HTML document. HTML might be preceded by a <!DOCTYPE> declaration (optional?). In Newt's Cape, <HTML>signals the beginning of a new book, and </HTML> signals the end (and terminates any communication connection).

Location: beginning and end of document

Example:

<HTML><!-- entire document goes here --></HTML>

!DOCTYPE

<!DOCTYPE html...> may be at the beginning of a document before <HTML>. This may be the preferred construct for SGML-oriented parsers, but we prefer HTML.

Location: beginning.

HEAD

Delimits the head section at the beginning of a document. Technically, it is an unordered collection of information. However, since NewtonScript expressions and initialization, may occur, Newt's Cape processes these definitions in order of occurrence.

Location: usually right after HTML

Example:

<HEAD><TITLE>the title</TITLE></HEAD>

TITLE

Required for every document. In a browser, TITLE might appear as the window label. In Newt's Cape, the title of the Newton book is a small header at the top of every page; it also appears in the Newt's Cape popup menu for HTML Notes, Inbox and Paperback entries. For Newt's Cape, TITLE should occur first, before any META elements for initialization purposes.

Although there is no length limit specified, from a practical point of view, the standard suggests that TITLE be fewer than 64 characters. If the TITLE is longer than ~40 characters, it will occupy more than one line at the top of each book page (and current book viewer seems to truncate after 63). If no ISBN META element is specified later, Newt's Cape uses the first 14 chars of TITLE (or the filename portion); if no SHORTTITLE is specified, the first 9 chars of TITLE is used as a label in the Extras Drawer.

Location: inside HEAD, preferably first.

Default: Untitled

Example:

<HEAD><TITLE>HTML -- the Real Story</TITLE></HEAD>

BASE

Specifies a base address for current document to resolve relative URLs. Sets an ISBN based on the filename, if not already set. When using NIE, Newt's Cape automatically set the BASE of the document to its URL.

Location: inside HEAD

This is merged with any relative URL to create an absolute http: address when a local book does not exist (see A HREF). We usually include BASE to uniquely identify the document, especially via serial transfer, but usually within a comment to avoid accidental network connections in desktop browsers.

ISINDEX

Allows user to search an index by giving keywords

Location: inside HEAD?; currently not supported (to be integrated with Find?)

LINK

Specifies hyperlinks (authorship, indexes, glossaries, versions, style sheets, document hierarchy). Newt's Cape uses the REL attribute to provide a mechanism to combine multiple saved books or sources (Notes) into the current document, and fixes cross-references (HREFs) to work in the new book.

For example, this would include two saved books at the beginning of a new document:

<LINK HREF="introtoc.htm" REL=Include><LINK HREF="hellowrl.htm" REL=Include></HEAD>

This example would include the source from two Notepad entries:

<LINK HREF="Notes/foo-part1" REL=Include><LINK HREF="Notes/foo-part2" REL=Include></HEAD>

Any HTML fragment in the Notepad would begin with a matching LINK specifying its name. For lookup purposes (and so that names appear in the Notepad overview), NAME must currently precede REL.

<LINK NAME="foo-part1" REL=Include>

You can also use the same syntax to refer to any soup that contains entries of the form {name: "filename", text: "source-string"} via HREF="soupname/filename" REL=Includes. (discussion of Credits section).

Location: inside HEAD

META

Adds a meta element -- general document meta-information (name and value). Newt's Cape uses this mechanism to add information to the book: slots for BookMaker (described below) and general NewtonScript slots and methods. You need to specify meta information only if you want to customize various package features -- it is not necessary for normal viewing.

Location: inside HEAD

Next, we'll outline the book slots, then return to how to specify these in actual META commands.

ISBN

Newt's Cape currently uses Newton books as a container for HTML documents. In order to save a book as a package and in order to reference (link to) other saved books on the Newton, you need a unique ISBN (International Standard Book Number) string. If a book with the same ISBN already exists, Newt's Cape should ask you to confirm removal of it. An ISBN is limited to 14 characters, and although any characters are legal, to improve portability of HTML documents to other systems and browsers, we suggest using an 8.3-style filename, e.g., testdoc1.htm.

Default: first 14 characters of TITLE, or filename of BASE or Untitled.htm.

AUTHOR

This string identifies the author(s) of the book. Note: multi-line string not possible -- book viewer filters/clips to a single line.

Default: your Newton's Name setting in Prefs:Personal

SHORTTITLE

This string identifies your book in the Extras Drawer. To prevent highlighting anomalies, we recommend that it be fewer than 10 characters. You might abbreviate the long TITLE, or if you use a 8.3 style filename for the ISBN, you could use the 8-character name as the short title.

Default: first 9 characters of TITLE

COPYRIGHT

This string is embedded in the book package as your "developer copyright".

Default: © current-year. Name in Prefs:Personal

PUBLISHER

This string contains the name of the publisher.

Default: Prefs:Personal:Name

PUBLICATIONDATE

This string contains an integer number of minutes since 1 Jan 1904. You can also specify a NewtonScript expression.

Default: current time.

APPSYMBOL

This string is used as the package name. If you are distributing packages, you may wish to include your developer signature (which you typically register with Apple). For example, "MyBook:MacPress". This should probably be 7-bit ASCII chars -- no extended/Unicode chars.

Default: ISBN.

Note: if APPSYMBOL is different from ISBN, automatic thawing of frozen books for NOS 2.x will not work.

ICON

This specifies a Bitmap (not a PICT) graphic object via a graphics URL, e.g., "bitmaps/fooicon.gif", immediate value, or shadowed URL.

Default: a generic Newt's Cape book icon (or "?" help book icon) Newt's Cape Book Icon

Example: look at how this book appears in the Extras Drawer

REFRESH

If a server supplies a REFRESH META attribute, Newt's Cape will go to a different (usually absolute?) URL after a delay (in seconds), for example: <META HTTP-EQUIV="Refresh" CONTENT="5; URL=another url">

NEWTONREFRESH

like REFRESH except it terminates parsing immediately before going to another URL. A general web page could redirect to a more Newton-friendly page (but only for Newt's Cape or other Newton-savvy browsers).

Using META

In order to specify a name and value, use the NAME and CONTENT attributes. Each attribute is followed by = and the value is usually surrounded by "".

NAME

Specifies the name of the meta information as a string. The HTTP-EQUIV attribute is equivalent in Newt's Cape, but generally this should be reserved for known server attributes, e.g., REFRESH.

CONTENT

Specifies the value of meta information, also a string.

For example, this document uses:

<META NAME="ISBN" CONTENT="head.htm"><META NAME="AUTHOR" CONTENT="Steve Weyer, Greg Simon"><META NAME="SHORTTITLE" CONTENT="NC Head"><META NAME="COPYRIGHT" CONTENT="&copy; 1995-98. S. Weyer, G. Simon. All Rights Reserved Worldwide">

META provides a mechanism to define implementation-specific information, such as scripts and shadow URLs -- ignored by desktop browsers but used by the Newton.

For example, for a new version of the Newt Application Tutorial (NewtATut), the same HTML source can be used to create a general (desktop) version that uses screen shots (.gif files) to show application development; on the Newton, the "URL" is a NewtonScript method that creates the application dynamically (see earlier NewtATut .htm and .pkg versions).

NEXTID

Used by hypertext editors? not supported.

BODY

Delimits the content (visible) portion of the document that contains headings, text, graphics, tables, and forms.

Location: after HEAD section. Example:

<BODY><H1>My First Heading</H1><P>some text<P>The End</BODY>

For More Info

This document (in all its formats) is © 1995-98. Steve Weyer, Greg Simon. All Rights Reserved Worldwide

Version 1.5. Last updated: Jan 1998


Steve Weyer - weyer@kagi.com
Greg Simon - gsimon@ricochet.net