Part V: The Future of (X)HTML in Java

Generating PDF 417 in Java Part V: The Future of (X)HTML

<mark> a run of text in a document marked or highlighted for easy reference, owing to its relevance to or citation in some other document <meter> a visual indicator for some measurement (disk usage, for example) <nav> a section of a document that provides navigation aids and information <output> some type of output, perhaps from a script-based calculation or API-based program call <progress> a visual meter for task completion (downloading a file, performing some series of calculations or operations) <ruby>, <rt>, <rp> markup designed to accommodate annotations created in the Ruby (also known as Ruby on Rails ) Web programming language <section> a generic document or application section, which may be used with h1 h6 elements to delineate document structure <summary> a summary, legend, or caption for details information <time> a value for representing a date and/or a time <video> provides a standard way to handle video information for multimedia content (also ties into the new APIs that HTML5 makes available, and likewise browsers will offer a built-in, default video interface as well) <wbr> denotes a possible or potential line break point for text flow To learn more about these new elements, visit this portion of the HTML5 specification: http://devw3org/ HTML5/html4-differences/#newelements

A variety of new attributes are introduced for HTML5, some for improved consistency with other, pre-existing HTML elements, and others to add new (or extend existing) functionality As in the previous section, we present these attributes in alphabetical order in the following two sections

For the following list, we follow the attribute name with the HTML5 element (or elements) in parentheses to which that attribute applies Here are the new element-specific attributes for HTML5:

async (script) influences script loading and execution, allowing these activities to proceed asynchronously (not in lockstep, and not at a specific time) autocomplete (input) supplies known or guessed input values in data fields autofocus (input, select, textarea, button) provides a declarative way to focus a form control during page load (user can turn it off if desired; does not apply to input when the hidden attribute is enabled) charset (meta) widely supported outside the spec in many tools for HTML4, a better way to specify character encoding for HTML5 disabled (fieldset) disables all descendant controls in a field set when specified form (input, output, select, textarea, button, fieldset) allows controls to be associated with a form, so that elements can appear anywhere on a page, not just inside a form element formaction (input, button) identifies special handling for forms (overrides action, attribute for the form element) formenctype (input, button) identifies special handling for forms (overrides enctype attribute for the form element) formmethod (input, button) identifies special handling for forms (overrides method attribute for the form element) formnovalidate (input, button) identifies special handling for forms (overrides novalidate attribute for the form element) formtarget (input, button) identifies special handling for forms (overrides target attribute for the form element) hreflang (area) added for consistency to match a and link elements label (menu) allows element to transform into a menu as in a typical GUI, and to provide context menus working with the global context menu attribute manifest (html) points to an application cache manifest for use with the API for offline Web applications max (input) specifies a maximum value when input values fall within some range media (a, area) added for consistency with the link element min (input) specifies a minimum value when input values fall within some range multiple (input) indicates that multiple input, comma-separated input values are allowed

novalidate (input) used to disable form validation upon submission pattern (input) specifies some specific pattern for input values (for example nnn-nnn-nnnn indicates the pattern for US telephone numbers, where n is an integer from 0 to 9) ping (a, area) specifies a space-separated list of URLs to ping when a hyperlink is followed; allows browsers (or other agent programs) to inform users which URLs will be pinged, and gives users a way to turn ping off if desired placeholder (input, textarea) presents a hint to aid users with data entry rel (area) added for consistency to match a and link elements required (input, textarea) indicates that users must supply a value to submit a form (does not apply to input if type is hidden, image, or a button type such as submit) reversed (ol) used to indicate that list order is descending (from higher to lower numbered values) sandbox (iframe) works with seamless and srcdoc attributes to sandbox frame content and keep it from interacting with the external runtime environment scoped (style) allows scoped style sheets to be enabled, where style rules within a scoped style element apply only to the local document tree seamless (iframe) works with sandbox and srcdoc attributes to sandbox frame content and keep it from interacting with the external runtime environment sizes (link) used in conjunction with the icon relationship (set using the rel attribute) to set the size of a referenced icon (supports use of different icon sizes) srcdoc (iframe) works with sandbox and seamless attributes to sandbox frame content and keep it from interacting with the external runtime environment start (ol) no longer deprecated (not presentational) step (input) specifies a minimum increment between pairs of input values target (base, a, area) added to base, and no longer deprecated for a and area (helpful in conjunction with iframe element) type (menu) allows element to transform into a menu as in a typical GUI, and to provide context menus working with the global contextmenu attribute value (li) no longer deprecated (not presentational)