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XML validation is the process of checking a document written in XML (eXtensible Markup Language) to confirm that it is both well-formed and also "valid" in that it follows a defined structure. A well-formed document follows the basic syntactic rules of XML, which are the same for all XML documents. A valid document also respects the rules dictated by a particular DTD or XML schema, according to the application-specific choices for those particular . In addition, extended tools are available such as OASIS CAM standard specification that provide contextual validation of content and structure that is more flexible than basic schema validations. ''xmllint'' is a command line XML tool that can perform XML validation. It can be found in UNIX / Linux environments. An example with the use of this program for validation of a file called ''example.xml'' is : xmllint --valid --noout example.xml The xmllint --stream option will reduce its memory footprint when validating very large files. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「XML validation」の詳細全文を読む スポンサード リンク
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