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To configure global options for XSLT transformation and validation scenarios that use the Saxon HE/PE/EE engine, open the Preferences dialog box (Options > Preferences) and go to XML > XSLT-XQuery > XSLT > Saxon > Saxon-HE/PE/EE.

Saxon-HE/PE/EE Options

Oxygen XML Author allows you to configure the following XSLT options for the Saxon Home Edition (HE), Professional Edition (PE), and Enterprise Edition (EE):
Use a configuration file ("-config")
Select this option if you want to use a Saxon configuration file that will be executed for the XSLT transformation and validation processes. You can specify the path to the configuration file by entering it in the URL field, or by using the Insert Editor Variables button, or using the browsing actions in the Browse drop-down list.
Enable Optimizations ("-opt")
This option is selected by default, which means that optimization is enabled. If not selected, the optimization is suppressed, which is helpful when reducing the compiling time is important, optimization conflicts with debugging, or optimization causes extension functions with side-effects to behave unpredictably.
Line numbering ("-l")
Line numbers where errors occur are included in the output messages.
Expand attributes defaults ("-expand")
Specifies whether or not the attributes defined in the associated DTD or XML Schema are expanded in the output of the transformation you are executing.
DTD validation of the source ("-dtd")
Specifies whether or not the source document will be validated against their associated DTD. You can choose from the following:
  • On - Requests DTD validation of the source file and of any files read using the document() function.
  • Off - (default setting) Suppresses DTD validation.
  • Recover - Performs DTD validation but treats the errors as non-fatal.
    Note: Any external DTD is likely to be read even if not used for validation, since DTDs can contain definitions of entities.
Recoverable errors ("-warnings")
Specifies how dynamic errors are handled. The following options can be selected:
  • Recover silently ("silent") - Continues processing without reporting the error.
  • Recover with warnings ("recover") - Issues a warning but continues processing.
  • Signal the error and do not attempt recovery ("fatal") - Issues an error and stops processing.
Strip whitespaces ("-strip")
Specifies how the strip whitespaces operation is handled. You can choose one of the following values:
  • All ("all") - Strips all whitespace text nodes from source documents before any further processing, regardless of any @xml:space attributes in the source document.
  • Ignore ("ignorable") - Strips all ignorable whitespace text nodes from source documents before any further processing, regardless of any @xml:space attributes in the source document. Whitespace text nodes are ignorable if they appear in elements defined in the DTD or schema as having element-only content.
  • None ("none") - Strips no whitespace before further processing.

Saxon-PE/EE Options

The following options are available for Saxon Professional Edition (PE) and Enterprise Edition (EE) only:
Register Saxon-JS extension functions and instructions
Registers the Saxon-CE extension functions and instructions when compiling a stylesheet using the Saxon processors.
Allow calls on extension functions ("-ext")
If selected, the stylesheet is allowed to call external Java functions. This does not affect calls on integrated extension functions, including Saxon and EXSLT extension functions. This option is useful when loading an untrusted stylesheet (such as from a remote site using http://[URL]). It ensures that the stylesheet cannot call arbitrary Java methods and thus gain privileged access to resources on your machine.
Enable assertions ("-ea")
In XSLT 3.0, you can use the <xsl:assert> element to make assertions in the form of XPath expressions, causing a dynamic error if the assertion turns out to be false. If this option is selected, XSLT 3.0 <xsl:assert> instructions are enabled. If it is not selected (default), the assertions are ignored.

Saxon-EE Options

The options available specifically for Saxon Enterprise Edition (EE) are as follows:
Validation of the source file ("-val")
Requests schema-based validation of the source file and of any files read using document() or similar functions. It can have the following values:
  • Schema validation ("strict") - This mode requires an XML Schema and allows for parsing the source documents with strict schema-validation enabled.
  • Lax schema validation ("lax") - If an XML Schema is provided, this mode allows for parsing the source documents with schema-validation enabled but the validation will not fail if, for example, element declarations are not found.
  • Disable schema validation - This specifies that the source documents should be parsed with schema-validation disabled.
Validation errors in the result tree treated as warnings ("-outval")

Normally, if validation of result documents is requested, a validation error is fatal. Selecting this option causes such validation failures to be treated as warnings.

Write comments for non-fatal validation errors of the result document
The validation messages for non-fatal errors are written (wherever possible) as a comment in the result document itself.