Oxygen XML Author plugin 13.2.0

Editing Documents | 69Inside an XML Schema if an xs:import statement specifies only the namespace attribute, without the schemaLocationattribute, Oxygen XML Author plugin will try to resolve the specified namespace URI through one of the XML catalogsconfigured in Preferences pages.The URN can be resolved to a local schema file with a catalog entry like:An XML Catalog file can be created quickly in Oxygen XML Author plugin starting from the two XML Catalogdocument templates called OASIS XML Catalog 1.0 and OASIS XML Catalog 1.1 and available in the document templatesdialog.User preferences related to XML Catalogs can be configured from Window > Preferences ... > oXygen > XML >XML CatalogXML CatalogAn XML catalog helps the XML parser to check a document for errors if the schema or a part of the schema is notavailable, for example when an Internet connection is not available.Important:Oxygen XML Author plugin XML Editor collects all the catalog files listed in the installed frameworks. Nomatter what the Document Type Association matches the edited file, all the catalog mappings are consideredwhen resolving external references.Important:The catalog files settings are available for all editing modes, not only for the Author mode.Formatting and Indenting Documents (Pretty Print)In structured markup languages, the whitespace between elements that is created using the Space bar, Tab or multipleline breaks is not recognized by the parsing tools. Often this means that when structured markup documents are opened,they are arranged as one long, unbroken line, that seems to be a single paragraph.While this is a perfectly acceptable practice, it makes editing difficult and increases the likelihood of errors beingintroduced. It also makes the identification of exact error positions difficult. Formatting and Indenting, also called PrettyPrint, enables such documents to be neatly arranged, in a manner that is consistent and promotes easier reading onscreen and in print output.Pretty print is in no way associated with the layout or formatting that will be used in the transformed document. Thislayout and formatting is supplied by the XSL stylesheet specified at the time of transformation.To change the indenting of the current selected text see the Indent selection action.For user preferences related to formatting and indenting like Detect indent on open and Indent on paste see thecorresponding Preferences panel.XML elements can be excepted from the reformatting performed by the pretty-print operation by including them in thePreserve space elements (XPath) list. That means that when the Format and Indent (pretty-print) action encounters inthe document an element with the name contained in this list, the whitespace is preserved inside that element. This isuseful when most of the elements must be reformatted with the exception of a few ones which are listed here.For the situation when whitespace should be preserved in most elements with the exception of a few elements, the namesof these elements must be added to the Strip space elements (XPath) list.In addition to simple element names, both the Preserve space elements (XPath) list and the Strip space elements (XPath)one accept a restricted set of XPath expressions to cover a pattern of XML elements with only one expression. Theallowed types of expressions are: