XProc Preferences

Oxygen XML Author includes a built-in XProc engine called Calabash. You can add or configure external XProc engines by using the XProc preferences page. Open the Preferences dialog box (Options ⇒ Preferences) and go to XML ⇒ XProc.

When Show XProc messages is selected all messages emitted by the XProc processor during a transformation will be presented in the results view.

To add an external engine click the New button. To configure an existing engine, click the Edit button. This opens the Custom Engine dialog box that allows you to configure an external engine.

Creating an XProc external engine

The following options can be configure in this dialog box:

• Name - The value of this field will be displayed in the XProc transformation scenario and in the command line that will start it.
• Description - A textual description that will appear as a tooltip where the XProc engine will be used.
• Working directory - The working directory for resolving relative paths. You can specify the path by using the text field, the Insert Editor Variables button, or the Browse button.
• Command line - The command line that will run the XProc engine as an external process. You can specify the path by using the text field, the Insert Editor Variables button, or the Browse button.
• Output encoding - The encoding for the output stream of the XProc engine, used for reading and displaying the output messages.
• Error encoding - The encoding for the error stream of the XProc engine, used for reading and displaying the messages from the error stream.