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use crate::errors::*;
use kuchiki::traits::TendrilSink;
use std::collections::HashMap;
use crate::hlua::AnyLuaValue;
use crate::structs::LuaMap;
#[derive(Debug, PartialEq)]
pub struct Element {
attrs: HashMap<String, String>,
text: String,
}
impl From<Element> for AnyLuaValue {
fn from(x: Element) -> AnyLuaValue {
let mut map = LuaMap::new();
map.insert_str("text", x.text);
map.insert("attrs", LuaMap::from(x.attrs));
map.into()
}
}
fn transform_element(entry: &kuchiki::NodeDataRef<kuchiki::ElementData>) -> Element {
let text = entry.text_contents();
let as_node = entry.as_node();
let mut attrs: HashMap<String, String> = HashMap::new();
if let Some(element) = as_node.as_element() {
for (k, v) in &element.attributes.borrow().map {
attrs.insert(k.local.to_string(), v.value.clone());
}
}
Element {
attrs,
text,
}
}
pub fn html_select(html: &str, selector: &str) -> Result<Element> {
let doc = kuchiki::parse_html().one(html);
match doc.select_first(selector) {
Ok(x) => Ok(transform_element(&x)),
Err(_) => bail!("css selector failed"),
}
}
pub fn html_select_list(html: &str, selector: &str) -> Result<Vec<Element>> {
let doc = kuchiki::parse_html().one(html);
match doc.select(selector) {
Ok(x) => Ok(x.into_iter().map(|x| transform_element(&x)).collect()),
Err(_) => bail!("css selector failed"),
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_html_select() {
let elems = html_select(r#"<html><div id="yey">content</div></html>"#, "#yey").unwrap();
assert_eq!(elems,
Element {
attrs: vec![(String::from("id"), String::from("yey"))].into_iter().collect(),
text: "content".into(),
}
);
}
#[test]
fn test_html_select_list() {
let elems = html_select_list(r#"<html><div id="yey">content</div></html>"#, "#yey").unwrap();
assert_eq!(elems, vec![
Element {
attrs: vec![(String::from("id"), String::from("yey"))].into_iter().collect(),
text: "content".into(),
}
]);
}
}