A library to extract useful data from HTML documents, suitable for web scraping.
examples/stackoverflow.rs```rust use select::document::Document; use select::predicate::{Attr, Class, Name, Predicate};
pub fn main() { // stackoverflow.html was fetched from // http://stackoverflow.com/questions/tagged/rust?sort=votes&pageSize=50 on // Aug 10, 2015. let document = Document::from(include_str!("stackoverflow.html"));
println!("# Menu");
for node in document.find(Attr("id", "hmenus").descendant(Name("a"))) {
println!("{} ({:?})", node.text(), node.attr("href").unwrap());
}
println!();
println!("# Top 5 Questions");
for node in document.find(Class("question-summary")).take(5) {
let question = node.find(Class("question-hyperlink")).next().unwrap();
let votes = node.find(Class("vote-count-post")).next().unwrap().text();
let answers = node
.find(Class("status").descendant(Name("strong")))
.next()
.unwrap()
.text();
let tags = node
.find(Class("post-tag"))
.map(|tag| tag.text())
.collect::<Vec<_>>();
let asked_on = node.find(Class("relativetime")).next().unwrap().text();
let asker = node
.find(Class("user-details").descendant(Name("a")))
.next()
.unwrap()
.text();
println!(" Question: {}", question.text());
println!(" Answers: {}", answers);
println!(" Votes: {}", votes);
println!(" Tagged: {}", tags.join(", "));
println!(" Asked on: {}", asked_on);
println!(" Asker: {}", asker);
println!(
"Permalink: http://stackoverflow.com{}",
question.attr("href").unwrap()
);
println!();
}
println!("# Top 10 Related Tags");
for node in document
.find(Attr("id", "h-related-tags"))
.next()
.unwrap()
.parent()
.unwrap()
.find(Name("div"))
.take(10)
{
let tag = node.find(Name("a")).next().unwrap().text();
let count = node
.find(Class("item-multiplier-count"))
.next()
.unwrap()
.text();
println!("{} ({})", tag, count);
}
} ```
prints
```
Questions ("/questions") Tags ("/tags") Users ("/users") Badges ("/help/badges") Unanswered ("/unanswered") Ask Question ("/questions/ask")
Question: Applications and libraries written in Rust [closed] Answers: 8 Votes: 67 Tagged: rust Asked on: Feb 19 '12 at 14:39 Asker: Atom Permalink: http://stackoverflow.com/questions/9350125/applications-and-libraries-written-in-rust
Question: How to debug Rust programs? [closed] Answers: 6 Votes: 52 Tagged: rust Asked on: Apr 8 '13 at 5:30 Asker: macropas Permalink: http://stackoverflow.com/questions/15871885/how-to-debug-rust-programs
Question: How to access command line parameters? Answers: 9 Votes: 51 Tagged: rust Asked on: Mar 25 '13 at 15:59 Asker: shutefan Permalink: http://stackoverflow.com/questions/15619320/how-to-access-command-line-parameters
Question: Why are explicit lifetimes needed in Rust? Answers: 6 Votes: 48 Tagged: pointers, rust, static-analysis, lifetime Asked on: Jul 24 at 11:15 Asker: jco Permalink: http://stackoverflow.com/questions/31609137/why-are-explicit-lifetimes-needed-in-rust
Question: What is the difference between traits in Rust and typeclasses in Haskell? Answers: 1 Votes: 46 Tagged: haskell, rust Asked on: Jan 24 at 7:50 Asker: LogicChains Permalink: http://stackoverflow.com/questions/28123453/what-is-the-difference-between-traits-in-rust-and-typeclasses-in-haskell
lifetime (165) traits (83) rust-cargo (79) string (76) ffi (62) iterator (58) multithreading (50) generics (50) arrays (49) borrow-checker (47) ```
MIT