xsl:catch

In conjunction with xsl:try, the xsl:catch instruction allows recovery from dynamic errors.

Content: sequence-constructor
Permitted parent elements: xsl:try

`errors?`	`tokens`	Indicates which error codes are caught. If absent, or if set to ``, all errors are caught. The value can be a whitespace-separated list of QNames; the wildcards `:local` or `prefix:*` can also be used.
`select?`	`expression`	The effect of the element may be defined either by a `select` attribute, or by an enclosed sequence constructor.

It is possible to have more than one xsl:catch within an xsl:try; the first one that matches the error is used.

Within the xsl:catch, a number of variables are available in the namespace http://www.w3.org/2005/xqt-errors:

err:code - the error code as a QName
err:description - the error description (error message)
err:value - the error object (if available)
err:module - the URI of the stylesheet module in which the error occurred
err:line-number - the line-number of the source stylesheet where the error occurred
err:column-number - for Saxon this will generally be unknown (-1)

The error can be re-thrown by using the error() function.