Enum XPathExpr 

pub enum XPathExpr {
    DescendantByTag(Tag),
    DescendantByAttr {
        tag: Tag,
        attr: String,
        value: String,
    },
    DescendantByAttrExists {
        tag: Tag,
        attr: String,
    },
    AbsolutePath(Vec<PathStep>),
    ContainsPredicate {
        tag: Tag,
        attr: String,
        substr: String,
    },
    PositionPredicate {
        tag: Tag,
        pos: usize,
    },
    TextExtract(Box<XPathExpr>),
    DescendantWildcard,
    DescendantWildcardByAttr {
        attr: String,
        value: String,
    },
    DescendantWildcardByAttrExists {
        attr: String,
    },
    Parent,
}

A parsed XPath expression.

Variants

DescendantByTag(Tag)

//tag — find descendants by tag name.

DescendantByAttr

//tag[@attr='value'] — find descendants by tag with an attribute predicate.

Fields

tag: Tag

The tag to match.

attr: String

Attribute name.

value: String

Attribute value.

DescendantByAttrExists

//tag[@attr] — descendants by tag with attribute existence predicate.

Fields

tag: Tag

The tag to match.

attr: String

Attribute name.

AbsolutePath(Vec<PathStep>)

/path/to/tag — absolute path from root.

ContainsPredicate

//tag[contains(@attr, 'substr')] — find descendants by tag with a contains predicate.

Fields

tag: Tag

The tag to match.

attr: String

Attribute name.

substr: String

Substring to search for.

PositionPredicate

//tag[position()=N] — find descendants by tag at a specific position.

Fields

tag: Tag

The tag to match.

pos: usize

1-based position.

TextExtract(Box<XPathExpr>)

//tag/text() or expression/text() — extract text from matched nodes.

DescendantWildcard

* in descendant context — //\*

DescendantWildcardByAttr

//\*[@attr='value'] — wildcard with attribute predicate.

Fields

attr: String

Attribute name.

value: String

Attribute value.

DescendantWildcardByAttrExists

//\*[@attr] — wildcard with attribute existence predicate.

Fields

attr: String

Attribute name.

Parent

.. — parent axis (relative to a context node).

Trait Implementations

impl Clone for XPathExpr

fn clone(&self) -> XPathExpr

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for XPathExpr

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for XPathExpr

fn eq(&self, other: &XPathExpr) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for XPathExpr