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A HTML editor is a software application for creating web pages. HTML, an initialism of HyperText Markup Language, is the predominant Markup language for Web pages It provides a means to describe the structure HTML has been in use since 1991, but HTML 40 (December 1997 was the first standardized version where international characters were given reasonably complete treatment Dynamic HTML, or DHTML, is a collection of technologies used together to create interactive and animated Web sites by using a combination of a static Markup In HTML and XHTML, a font face or font family is the typeface that is applied to some text In Computing, an HTML element indicates structure in an HTML document and a way of hierarchically arranging content HTML Series The W3C HTML standard includes support for Client-side scripting. A layout engine, or rendering engine, is software that takes marked up content (such as HTML, XML, image files etc Quirks mode refers to a technique used by some Web browsers for the sake of maintaining backwards compatibility with Web pages designed for older browsers instead of Web style sheets are a form of Separation of presentation and content for Web design in which the markup (i Web pages authored using hypertext markup language ( HTML) may contain multilingual text represented with the Unicode universal character set. Web colors are Colors used in designing web pages and the methods for describing and specifying those colors The Extensible Hypertext Markup Language, or XHTML, is a The following tables compare general and technical information for a number of Web browsers Please see the individual products' articles for further information The following tables compare HTML compatibility and support for a number of Layout engines Please see the individual products' articles for further information The following tables compare support of HTML 5 differences from HTML 4 for a number of Layout engines The specification is still a working draft not The following tables compare deprecated and proprietary HTML tags and attributes compatibility and support for a number of Layout engines Please see the individual products' articles for The following tables compare XHTML compatibility and support for a number of Layout engines Please see the individual products' articles for further information Application software is a subclass of Computer software that employs the capabilities of a computer directly and thoroughly to a task that the user wishes to perform A web page or webpage is a resource of information that is suitable for the World Wide Web and can be accessed through a Web browser. Although the HTML markup of a web page can be written with any text editor, specialized HTML editors can offer convenience and added functionality. HTML, an initialism of HyperText Markup Language, is the predominant Markup language for Web pages It provides a means to describe the structure A text editor is a type of program used for editing plain Text files Text editors are often provided with Operating systems or software development For example, many HTML editors work not only with HTML, but also with related technologies such as CSS, XML and JavaScript or ECMAScript. Don't change "Extensible" JavaScript is a Scripting language most often used for Client-side web development ECMAScript is a Scripting language, standardized by Ecma International in the ECMA-262 specification. In some cases they also manage communication with remote web servers via FTP and WebDAV, and version management systems such as CVS or Subversion. Web-based Distributed Authoring and Versioning, or WebDAV, is a set of extensions to the Hypertext Transfer Protocol (HTTP that allows users to collaboratively edit In the field of Software development, the Concurrent Versions System ( CVS) also known as the Concurrent Versioning System, provides a Version Subversion ( SVN) is a version control system initiated in 2000 by CollabNet Inc
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Types
There are various forms of HTML editors: text, object and WYSIWYG (What You See Is What You Get) editors. WYSIWYG (ˈwɪziwɪg or /ˈwɪzɪwɪg/ is an Acronym for W hat Y ou S ee I s W hat Y ou G
Object editors
Some editors allow alternate editing of the source text of objects in more visually organized modes than simple color highlighting, but in modes not considered WYSIWYG. In its simplest embodiment an object is an allocated region of storage Graphic organizers are visual representations of knowledge concepts or ideas Some WYSIWYG editors include the option of using palette windows that enable editing the text-based parameters of selected objects. A palette window, also known as utility window or floating palette, is a type of computing window which floats on top of all regular windows and offers These palettes allow either editing parameters in fields for each individual parameter, or text windows to edit the full group of source text for the selected object. They may include widgets to present and select options when editing parameters. In computer programming a widget (or control) is an element of a Graphical user interface (GUI that displays an information arrangement changeable by the user Adobe GoLive provides an outline editor to expand and collapse HTML objects and properties, edit parameters, and view graphics attached to the expanded objects. Adobe GoLive is an HTML editor and web site management application from Adobe Systems.
WYSIWYG HTML editors
WYSIWYG HTML editors provide an editing interface which resembles how the page will be displayed in a web browser. Amaya is a free and open source WYSIWYG web Authoring tool with browsing abilities created by a structured editor project at WYSIWYG (ˈwɪziwɪg or /ˈwɪzɪwɪg/ is an Acronym for W hat Y ou S ee I s W hat Y ou G A web browser is a software application which enables a user to display and interact with text images videos music games and other information typically located on a Some editors, such as ones in the form of browser extensions allow editing within a web browser. Because using a WYSIWYG editor does not require any HTML knowledge, they are easier for an average computer user to get started with.
The WYSIWYG view is achieved by embedding a layout engine based upon that used in a web browser. A layout engine, or rendering engine, is software that takes marked up content (such as HTML, XML, image files etc The layout engine will have been considerably enhanced by the editor's developers to allow for typing, pasting, deleting and moving the content. The goal is that, at all times during editing, the rendered result should represent what will be seen later in a typical web browser. Rendering is the process of generating an image from a model, by means of computer programs
While WYSIWYG editors make web design faster and easier; many professionals still use text editors, despite the fact that most WYSIWYG editors have a mode to edit HTML code by hand. The web was not originally designed to be a visual medium, and attempts to give authors more layout control, such as css, have been poorly supported by major web browsers. Because of this, code automatically generated by WYSIWYG editors frequently sacrifice file size and compatibility with fringe browsers, to create a design that looks the same for widely used desktop web browsers. Acid2 is a test page published and promoted by the Web Standards Project to identify Web page rendering flaws in Web browsers and other applications This automatically generated code may be edited and corrected by hand. For more on subject, see Difficulties in achieving WYSIWYG below. An HTML editor is a software application for creating Web pages Although the HTML markup of a web page can be written with any Text editor, specialized [1][2][3]
WYSIWYM editors
What You See Is What You Mean (WYSIWYM) is an alternative paradigm to the WYSIWYG editors above. WYSIWYM is an acronym for W hat Y ou S ee I s W hat Y ou M ean and refers to the Paradigm for document Instead of focusing on the format or presentation of the document, it preserves the intended meaning of each element. For example, page headers, sections, paragraphs, etc. are labeled as such in the editing program, and displayed appropriately in the browser.
WYMeditor is an example of a WYSIWYM XHTML editor.
Valid HTML code
HTML is a structured markup language. A markup language is an Artificial language using a set of annotations to text that give instructions regarding the structure of text or how it is to be displayed There are certain rules on how HTML must be written if it is to conform to W3C standards for the World Wide Web. The World Wide Web (commonly shortened to the Web) is a system of interlinked Hypertext documents accessed via the Internet. Following these rules means that web sites are accessible on all types and makes of computer, to able-bodied and people with disabilities, and also on wireless devices like mobile phones and PDAs, with their limited bandwidths and screen sizes. Wireless communication is the transfer of information over a distance without the use of electrical conductors or " Wires quot
Unfortunately most HTML documents on the web are not valid according to W3C standards. According to one study only about 1 out of 141 is valid. Even those syntactically correct documents may be inefficient due to an unnecessary use of repetition, or based upon rules that have been deprecated for some years. In Computer software standards and documentation the term deprecation is applied to Software features that are superseded and should be avoided Current W3C recommendations on the use of CSS with HTML were first formalised by W3C in 1996[4] and have been revised and refined since then. See CSS, XHTML, W3C's current CSS recommendation and W3C's current HTML recommendation. The Extensible Hypertext Markup Language, or XHTML, is a
These guidelines emphasise the separation of content (HTML or XHTML) from style (CSS). This has the benefit of delivering the style information once for a whole site, not repeated in each page, let alone in each HTML element. WYSIWYG editor designers have been struggling ever since with how best to present these concepts to their users without confusing them by exposing the underlying reality. Modern WYSIWYG editors all succeed in this to some extent, but none of them has succeeded entirely.
People who use text editors can generally fix such problems immediately, once they become aware of them. People find it frustrating when such errors come from WYSIWYG editors.
However a web page was created or edited, WYSIWYG or by hand, in order to be successful among the greatest possible number of readers and viewers, as well as to maintain the 'worldwide' value of the Web itself it can be argued that, first and foremost, it should consist of valid markup and code. Some would argue that it should not be delivered by a designer to his or her customer, and not be considered ready for the World Wide Web, until its HTML and CSS syntax has been successfully validated using either the free W3C validator services (W3C HTML Validator and W3C CSS Validator) or some other trustworthy alternatives. A validator is a Computer program used to check the Validity or syntactical correctness of a fragment of code or document
Others would argue[5] that publishing useful information or profitable content as soon as possible should be first and foremost.
Whatever software tools are used to design, create and maintain web pages, there is little doubt that the quality of the underlying HTML is dependent on the skill of the person who works on the page. Some knowledge of HTML, CSS and other scripting languages as well as a familiarity with the current W3C recommendations in these areas will help any designer produce better web pages, with a WYSIWYG HTML editor and without[6].
Difficulties in achieving WYSIWYG
A given HTML document will have an inconsistent appearance on various platforms and computers for several reasons:
- Different browsers and applications will render the same markup differently.
- The same page may display slightly differently in Internet Explorer and Firefox on a high-resolution screen, but it will look very different in the perfectly valid text-only Lynx browser. Lynx is a free Open-source, text-only Web browser and Gopher client for use on cursor-addressable character cell terminals. It needs to be rendered differently again on a PDA, an internet-enabled television and on a mobile phone. Usability in a speech or braille browser, or via a screen-reader working with a conventional browser, will place demands on entirely different aspects of the underlying HTML. Printing the page, via different browsers and different printers onto various paper sizes, around the world, places other demands. With the correct use of modern HTML and CSS there is no longer any need to provide 'Printable page' links and then have to maintain two versions of the whole site. Nor is there any excuse for pages not fitting the user's preferred paper size and orientation, or wasting ink printing solid background colours unnecessarily, or wasting paper reproducing navigation panels that will be entirely useless once printed out[7].
- Browsers and computer graphics systems have a range of user settings.
- Resolution, font size, colour, contrast etc can all be adjusted at the user's discretion, and many modern browsers allow even more user control over page appearance[8]. All an author can do is suggest an appearance.
- Web browsers, like all computer software, have bugs
- They may not conform to current standards. A software bug (or just “bug” is an error flaw mistake Failure, fault or “undocumented feature” in a Computer program that prevents it It is hopeless to try to design Web pages around all of the common browsers current bugs: each time a new version of each browser comes out, a significant proportion of the World Wide Web would need re-coding to suit the new bugs and the new fixes. It is generally considered much wiser to design to standards, staying away from 'bleeding edge' features until they settle down, and then wait for the browser developers to catch up to your pages, rather than the other way round[9]. In this regard, no one can argue that CSS is still 'cutting edge' as there is now widespread support available in common browsers for all the major features[10], even if many WYSIWYG and other editors have not yet entirely caught up[11].
What you see may be what most visitors get, but it is not guaranteed to be what everyone gets.
Comparison of HTML editors
See the main article Comparison of HTML editors. The following tables compare general and technical information for a number of (purportedly WYSIWYG HTML editors.
See also
References
- ^ WPDFD Issue #54 - September 01, 2002 | Web Page Design for Designers ©
- ^ WPDFD Issue #77 - August 01, 2004 | Web Page Design for Designers ©
- ^ WPDFD Issue #79 - October 01, 2004 | Web Page Design for Designers ©
- ^ Cascading Style Sheets, level 1
- ^ http://foad.org/~abigail/WWW/dream.html
- ^ Dave Raggett's Introduction to HTML
- ^ Media types
- ^ Options window
- ^ An essay on W3C's design principles
- ^ Cascading Style Sheets
- ^ Cascading Style Sheets
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