saxon:deep-equal
Compares two sequences, with more control than fn:deep-equal().
deep-equal($arg1 as item()*, $arg2 as item()*, $collation as xs:string?, $flags as xs:string) ➔ xs:boolean
Arguments | |||
| $arg1 | item()* | The first sequence |
| $arg2 | item()* | The second sequence |
| $collation | xs:string? | Collation used for comparing strings |
| $flags | xs:string | Flags controlling the way the comparison is performed. |
Result | xs:boolean |
Namespace
http://saxon.sf.net/
Notes on the Saxon implementation
Introduced in Saxon 8.6.1, with changes (for additional flags) in Saxon 8.7, 9.4, and 9.5.
Details
This function compares two sequences $arg1
and $arg2
for deep
equality. The two sequences are supplied in the first two arguments. In the absence of
any $flags
, the function returns the same result as the
deep-equal()
function in the standard XPath library. The
$flags
argument is used to modify the way in which the comparison is
performed.
The $collation
argument is mandatory. Supply an empty sequence to use the
default collation.
The flags argument is a string containing characters acting as flags that cause the
function to behave differently from the standard fn:deep-equal()
function.
The following flags are defined:
N
|
Include namespace nodes in the comparison. For two elements to be deep-equal, they must have the same in-scope namespaces (that is, same prefix and same URI). |
F
|
Include namespace prefixes in the comparison. For two elements or attributes to be equal, their names must use the same namespace prefix (or none). |
C
|
Include comment nodes in the comparison. For two element or document nodes to be deep-equal, they must have the same comment node children. |
P
|
Include processing-instruction nodes in the comparison. For two element or document nodes to be deep-equal, they must have the same processing-instruction node children. |
J
|
Join adjacent text nodes (for example, nodes either side of an ignored comment). |
S
|
Compare string values rather than typed values of simple-typed elements and attributes. |
A
|
Compare type annotations on elements and attributes. The type annotations must match exactly. |
I
|
Compare the is-ID and is-IDREF
properties on elements and attributes. |
w
|
Exclude whitespace text nodes from the comparison. Any whitespace text node in either tree is ignored (except when determining the typed value of an element annotated with a simple type or a complex type with simple content). |
v
|
Exclude type variety from the comparison. By default, an element with simple type and an element with complex type are never deep-equal - even if their actual content is identical. Similarly, an element whose content model is empty is never deep-equal to one with an element-only content model, even if both actually have no content. This flag suppresses this check. It is useful when comparing a schema-validated document to an unvalidated document. |
?
|
Explain reason for a non-match. If the result is not-equal, a
warning message explaining the reason will be sent to the
ErrorListener . (In general, a sequence of warning messages will be
sent, starting with the lowest-level difference and moving up the tree). |