xml attribute name rules
), and hyphens (-). So, just because a character isn't a letter in the English alphabet doesn't mean that you can't use it. The four hyperlinks lead to productions 84, 88, 87, and 89, respectively. For a person's gender, the element can be written like this: . Serbian / srpski markup to altogether missing elements, and can still generate a web page in the XML is designed to allow you to be descriptive with element names, in keeping with the idea that XML should be readable. are not actual numeric values. as "is defined as" or "comprises" and so on. The rules XML file must have ValidationRules as root element. spec in your browser and do a text search on the string "[12]".). In XML, a valid document must conform to the rules in its DTD (Document Type Definition) or schema, which defines what elements can appear in the document and how elements may nest within one another. can see from production 88: [88] Digit ::= [#x0030-#x0039] | [#x0660-#x0669] | [#x06F0-#x06F9] |  representations of the characters 0 through 9. above, I A local name of an element or attribute in Visual Basic must adhere to the following rules. ), A clear, useful description of what's allowed in an XML element (or other) name can I'm thinking, for example, of a rule like "an element name must begin with a letter (alphabet) and can be followed by alphanumeric characters." / Because you can't have spaces in element names, the underscore is commonly used in place of a space—for example, . A: You're actually pretty close to the real rules. But don’t confuse well-formed XML with valid XML! (like You might imagine, for example, that the term Second, you need to understand that all these EBNF blocks -- these productions -- As a practical matter, a name should be as short as possible while still clearly identifying the nature of the element. Content licensed from and © 1998 - 2008 O'Reilly Media, Inc. These rules for naming do not apply solely to element names, but any XML component that requires a valid XML name. published in 1998, except for clearing up some ambiguities. 50 California Street, 18th Floor, San Francisco, CA, 94111, Rule 7: Attribute Values Must Appear Within Quotes, A Designer’s Guide to Adobe InDesign and XML: Harness the Power of XML to Automate Your Print and Web Workflows, Creating Animations in Adobe InDesign CC: Growth and Rotation, Working with Objects in Adobe InDesign CC (2015 release), Working with Paragraph Shading in Adobe InDesign CC (2015 release), Attribute values must appear within quotes (. last w3resource . Russian / Русский Arabic / عربية Romanian / Română Chinese Traditional / 繁體中文 IBM Knowledge Center uses JavaScript. Rules always have exceptions. Allowing you to use descriptive names also contributes to the structure of the XML document, enabling you to use element names that are descriptive of their content and relationships to other elements. In this HTML example SRC is an attribute to the IMG element. model in a DTD and uses many of the same regular-expression notations. English / English There is nothing in the XML Recommendation to stop us from using as an element for cellular phone numbers. A root element is simply a set of tags that contains your XML content. After you've put together some possible combinations of element names based on the Here's a short lesson in deciphering Name's EBNF. If the character is a valid letter, such as an á, an é, an ö, or another diacritical mark, then it is valid in XML. the do is starts out all right, but falls apart because the # is not a legitimate name character. In addition, yo… something wrong! I'm thinking, for example, of a rule like "an element name must begin with a letter found in section 2.3, "Common Syntactic Constructs. Japanese / 日本語 these Bosnian / Bosanski In fact, you can include only the following characters other than letters in a name: The period may be used in an element name—for example, is a valid element type. This example demonstrates this: Shop now. Kazakh / Қазақша This improves the readability of your code and reduces line length and source-file size. Chinese Simplified / 简体中文 The double-colon-equals character, ::=, can be read Imagine trying to read a document with. XML element names are case sensitive. It must begin with an alphabetical character or an underscore (_). For more information, see XML Element Literal. Some characters are reserved by the XML syntax itself. "pipe" -- character, |. Attribute type names are subject to the same naming rules and conventions as elements. hyperlinks on these pages. A Designer’s Guide to Adobe InDesign and XML: Harness the Power of XML to Automate Your Print and Web Workflows. Search Optional. The names of XML-elements and XML-attributes are case-sensitive, which means the name of start and end elements need to be written in the same case. The names of XML-elements and XML-attributes are case-sensitive, which means the name of start and end elements need to be written in the same case. This is where you need to refer to production 5 listed above. The attribute1, attribute2, … is XML attribute having unique attribute name. Rule 1: All XML Must Have a Root Element . Attribute values must appear within quotes (""). Whitespace characters like blanks, tabs and line-breaks between XML-elements and between the XML-attributes will be ignored.

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