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extern crate html5ever;
extern crate tendril;
use html5ever::{ParseOpts, parse_document};
use html5ever::rcdom::{RcDom, Node, NodeData};
use tendril::TendrilSink;
pub fn strip_html_tags(input: &str) -> Vec<String> {
let dom = parse_document(RcDom::default(), ParseOpts::default())
.from_utf8()
.one(input.as_bytes());
let doc = dom.document;
get_text(&doc)
}
fn get_text(element: &Node) -> Vec<String> {
match element.data {
NodeData::Text { ref contents } => {
let mut text = vec!((&**contents.borrow()).to_owned());
for child in &*element.children.borrow() {
text.append(&mut get_text(child));
}
text
}
_ => {
let mut text = vec!();
for child in &*element.children.borrow() {
text.append(&mut get_text(child));
}
text
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_strip_html_tag() {
let input = "<html>Hello World!</html>";
let output = strip_html_tags(input);
assert_eq!(output, vec!["Hello World!".to_owned()]);
}
#[test]
fn test_strip_nested_tags() {
let input = "<html>Hello<div>World!</div></html>";
let output = strip_html_tags(input);
assert_eq!(output, vec!["Hello".to_owned(), "World!".to_owned()]);
}
#[test]
fn test_preorder_traversal() {
let input = "<html>Hel<div>lo</div>World!</html>";
let output = strip_html_tags(input);
assert_eq!(output, vec!["Hel".to_owned(), "lo".to_owned(), "World!".to_owned()]);
}
}