html_query_parser 0.3.1

Pure, simple and elegant HTML parser and query selector.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83

use crate::{data::VOID_TAGS, Element, Node};

/// Used to be converted to html string
pub trait Htmlifiable {
    /// Convert the object to html string.
    /// 
    /// ```
    /// use html_query_parser::{Node, Element, Htmlifiable};
    /// 
    /// let node: Node = Node::new_element(
    ///     "span",
    ///     vec![("class", "info")],
    ///     vec![
    ///         Node::Text("Hello World!".to_string())
    ///     ]
    /// );
    /// assert_eq!(node.html(), r#"<span class="info">Hello World!</span>"#);
    /// 
    /// let nodes: Vec<Node> = vec![node.clone()];
    /// assert_eq!(nodes.html(), r#"<span class="info">Hello World!</span>"#);
    /// 
    /// let element: Element = node.try_into_element().unwrap();
    /// assert_eq!(element.html(), r#"<span class="info">Hello World!</span>"#);
    /// ```
    fn html(&self) -> String;
}

impl Htmlifiable for Element {
    fn html(&self) -> String {
        if self.attrs.len() == 0 {
            return if VOID_TAGS.contains(&self.name.as_str()) {
                format!("<{}>", self.name)
            } else {
                format!("<{}>{}</{}>", self.name, self.children.html(), self.name)
            };
        }
        let attrs = self
            .attrs
            .iter()
            .map(|(k, v)| {
                format!(
                    "{}=\"{}\"",
                    k,
                    v.replace("\"", "\\\"").replace("\'", "\\\'")
                )
            })
            .collect::<Vec<_>>()
            .join(" ");

        if VOID_TAGS.contains(&self.name.as_str()) {
            format!("<{} {}>", self.name, attrs,)
        } else {
            format!(
                "<{} {}>{}</{}>",
                self.name,
                attrs,
                self.children.html(),
                self.name
            )
        }
    }
}

impl Htmlifiable for Node {
    fn html(&self) -> String {
        match self {
            Node::Element { .. } => self.clone().try_into_element().unwrap().html(),
            Node::Text(text) => text.to_string(),
            Node::Comment(comment) => format!("<!--{}-->", comment),
            Node::Doctype => "<!DOCTYPE html>".to_string(),
        }
    }
}

impl Htmlifiable for Vec<Node> {
    fn html(&self) -> String {
        let mut html = String::new();
        for node in self {
            html.push_str(node.html().as_str());
        }
        html
    }
}