Trait QueryBuilderExt 

pub trait QueryBuilderExt {
    // Required method
    fn get_handle(&self) -> Handle;

    // Provided methods
    fn limit<'a>(&self, limit: usize) -> QueryBuilder<'a, (), ()> { ... }
    fn tag<'a, P: Pattern>(
        &self,
        tag: P,
    ) -> QueryBuilder<'a, TagQuery<P>, QueryWrapper<'a, (), ()>> { ... }
    fn attr_name<'a, P>(
        &self,
        name: P,
    ) -> QueryBuilder<'a, AttrQuery<P, bool>, QueryWrapper<'a, (), ()>>
       where P: Pattern { ... }
    fn attr_value<'a, P>(
        &self,
        value: P,
    ) -> QueryBuilder<'a, AttrQuery<bool, P>, QueryWrapper<'a, (), ()>>
       where P: Pattern { ... }
    fn attr<'a, P, Q>(
        &self,
        name: P,
        value: Q,
    ) -> QueryBuilder<'a, AttrQuery<P, Q>, QueryWrapper<'a, (), ()>>
       where P: Pattern,
             Q: Pattern { ... }
    fn class<'a, P: Pattern>(
        &self,
        value: P,
    ) -> QueryBuilder<'a, AttrQuery<&'static str, P>, QueryWrapper<'a, (), ()>> { ... }
    fn recursive<'a>(&self, recursive: bool) -> QueryBuilder<'a, (), ()> { ... }
    fn children(&self) -> NodeChildIter { ... }
    fn parents(&self) -> NodeParentIter { ... }
}

Adds the QueryBuilder constructor methods to the implementing type

Required Methods

fn get_handle(&self) -> Handle

Retrieves the Handle that these methods will work on

Provided Methods

fn limit<'a>(&self, limit: usize) -> QueryBuilder<'a, (), ()>

Starts building a Query, with limit limit

fn tag<'a, P: Pattern>( &self, tag: P, ) -> QueryBuilder<'a, TagQuery<P>, QueryWrapper<'a, (), ()>>

Starts building a Query, with tag tag

fn attr_name<'a, P>( &self, name: P, ) -> QueryBuilder<'a, AttrQuery<P, bool>, QueryWrapper<'a, (), ()>>

where P: Pattern,

Starts building a Query, with attr name name

fn attr_value<'a, P>( &self, value: P, ) -> QueryBuilder<'a, AttrQuery<bool, P>, QueryWrapper<'a, (), ()>>

where P: Pattern,

Starts building a Query, with attr value value

fn attr<'a, P, Q>( &self, name: P, value: Q, ) -> QueryBuilder<'a, AttrQuery<P, Q>, QueryWrapper<'a, (), ()>>

where P: Pattern, Q: Pattern,

Starts building a Query, with attr attr

fn class<'a, P: Pattern>( &self, value: P, ) -> QueryBuilder<'a, AttrQuery<&'static str, P>, QueryWrapper<'a, (), ()>>

Starts building a Query, with class class

fn recursive<'a>(&self, recursive: bool) -> QueryBuilder<'a, (), ()>

Starts building a Query, with recursion set to recursive

fn children(&self) -> NodeChildIter

Returns an iterator over the node’s children

Example

use soup::prelude::*;

let soup = Soup::new(r#"<ul><li>ONE</li><li>TWO</li><li>THREE</li></ul>"#);
let ul = soup.tag("ul").find().expect("couldn't find 'ul'");
let li_text = ul.children()
                .filter(|node| node.is_element())
                .map(|node| node.text().to_string())
                .collect::<Vec<_>>();
assert_eq!(li_text, vec!["ONE".to_string(), "TWO".to_string(), "THREE".to_string()]);

fn parents(&self) -> NodeParentIter

Iterator over the parents of a node

Example

use soup::prelude::*;

let soup = Soup::new(r#"<div><p><b>FOO</b></p></div>"#);
let b = soup.tag("b").find().expect("Couldn't find tag 'b'");
let parents = b.parents().map(|node| node.name().to_string()).collect::<Vec<_>>();
assert_eq!(parents, vec!["p".to_string(), "div".to_string(), "body".to_string(), "html".to_string(), "[document]".to_string()]);

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl QueryBuilderExt for Handle

fn get_handle(&self) -> Handle

Implementors

impl QueryBuilderExt for Soup