Mathematica Import/Export Format

HTML (.html, .htm)

Registered MIME type: text/html
HTML markup language and file format.
Predominant language for the creation of web pages.
HTML is an acronym derived from Hypertext Markup Language.
Plain text format.
Describes the structure and aspects of the appearance of web pages.
First published in 1993 as an Internet Engineering Task Force (IETF) working draft.
Maintained since 1996 by the World Wide Web Consortium (W3C).
Most recent version is 4.01, published in 1999 as W3C recommendation.
International standard ISO/IEC 15445:2000.
Predecessor of XHTML.

Import fully supports HTML version 4.01.

Output from Export[..., "HTML"]conforms to the XHTML 1.1 standard.

IMPORT AND EXPORT

Import["file.html"] gives a plain text representation of an HTML file.

Import["file.html", "Data"] extracts tabular data from HTML.

Export["file.html", expr] creates an HTML version of expr.

Export["dir", expr] translates expr to HTML, saving the output in the specified directory.

Import["file.html"] returns a string, representing the textual content of the file as formatted plain text.

Export["file.html", expr] exports a notebook, a cell, a list of cells, or other notebook elements to HTML.

Export always creates a complete HTML document, and not merely a fragment of HTML.

The output consists of one or more HTML files and two directories, HTMLFiles and HTMLLinks.

Mathematica by default converts typeset expressions to GIF images when exporting to HTML.

Mathematica can export Tooltip and Hyperlink expressions to HTML, creating HTML image maps if necessary.

Import["file.html", elem] imports the specified element from an HTML file.

Import["file.html", {elem, sub_a, sub_b, ...}] imports a subelement.

Import["file.html", {{elem₁, elem₂, ...}}] imports multiple elements.

The import format can be specified with Import["file", "HTML"] or Import["file", {"HTML", elem, ...}].

Export["file.html", expr, elem] creates an HTML file by treating expr as specifying element elem.

Export["file.html", {expr₁, expr₂, ...}, {{elem₁, elem₂, ...}}] treats each expr_i as specifying the corresponding elem_i.

Export["file.html", expr, opt₁->val₁, ...] exports expr with the specified option elements taken to have the specified values.

Export["file.html", {elem₁->expr₁, elem₂->expr₂, ...}, "Rules"] uses rules to specify the elements to be exported.

See the reference pages for full general information on Import and Export.

ImportString and ExportString support the HTML format.

NOTEBOOK INTERFACE

Save Selection As exports the selected part of a notebook as a web page.

Save As exports an entire notebook as a web page.

ELEMENTS

General Import elements:

	"Elements"	list of elements and options available in this file
	"Rules"	full list of rules for each element and option
	"Options"	list of rules for options, properties, and settings

Import elements:

	"Data"	textual and numerical content from HTML table and list elements
	"FullData"	full tabular content, including empty HTML table and list elements
	"Hyperlinks"	list of strings, representing target URLs of hyperlinks
	"Plaintext"	HTML document formatted as text
	"Source"	raw HTML source as a single string
	"XMLObject"	symbolic XML representation of the entire document

Import by default uses the "Plaintext" element.

When importing a plain HTML document as "XMLObject", Mathematica will attempt to convert it to well-formed XHTML and import the resulting XML file.

Export elements:

	"Notebook"	a Notebook expression
	"NotebookObject"	a NotebookObject expression
	"Expression"	an arbitrary Mathematica expression

OPTIONS

Import options:

	"DefaultEncoding"	"UTF8"	encoding to use if no character set is specified in the HTML source
	"Numeric"	True	whether to import data fields as numbers when possible

If the character encoding of the file is not specified in the HTML file, Import uses the encoding specified by "DefaultEncoding". A complete list of possible encodings is given by $CharacterEncodings.

Mathematica always uses the UTF-8 encoding when exporting to HTML.

Export options:

"ConvertLinkedNotebooks"	False	whether to convert linked notebooks to HTML
"ConversionRules"	Automatic	specifies mappings from Mathematica cell styles to HTML elements, including both inline and block-level versions of the markup
"CSS"	Automatic	what CSS stylesheet to use or link to
"HeadAttributes"	{}	attributes to be inserted in HTML <head> tag, given as a list of rules
"HeadElements"	{}	subelements of HTML <head> tag
"MathOutput"	"GIF"	how to represent typeset expressions
"ConvertClosed"	True	whether to export forward-closed cell groups
"ConvertReverseClosed"	False	whether to export reverse-closed cell groups
"Content"	False	whether to export MathML content elements

Possible settings for "CSS" are:

	Automatic	creates a CSS stylesheet from the Mathematica stylesheet
	None	does not create a stylesheet file or inline CSS style
	"file.css"	uses a stylesheet file

The following settings can be given for "MathOutput":

	"GIF"	converts all typeset expressions to GIF
	"MathML"	converts all typeset expressions to MathML
	"DisplayForm"	converts all typeset expressions to ASCII approximations of their appearance
	"InputForm"	converts all typeset expressions to their InputForm

Allowed settings for "ConvertClosed"and "ConvertReverseClosed" are:

	False	does not export closed groups
	True	exports all cell groups
	"LinkedPage"	exports each forward-closed group to a separate page

TUTORIALS

Mathematica Internet Connectivity