Breakpoints can be set in XSLT/XQuery documents and XML documents in XSLT/XQuery debugging
sessions.
To insert a breakpoint, follow these steps:
Click the line where you want to insert the breakpoint in the XML source document or
the XSLT/XQuery document.
You can only set breakpoints on the XML source in XSLT or XQuery debugging
sessions.
Breakpoints are automatically created on the ending line of a start tag, even if you
click a different line.
Click the vertical stripe on the left side of the editor
panel or select Create Breakpoint
(Shift+F7) from the Edit > Breakpoints menu.
Once you insert a breakpoint, it is automatically added to the
list in the Breakpoints view and you can edit its associated breakpoint
condition. A breakpoint can have an associated break condition that represents
an XPath expression evaluated in the current debugger context. In order to be processed, their
evaluation result should be a boolean value. A breakpoint with an associated condition only
stops the execution of the Debugger if the breakpoint condition is evaluated as
true.