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//!# Parses and searches Tag documents. (e.g. HTML, XML) //! //! parsercher parses documents written in tags such as HTML and XML. //! * Create a tree of Dom structures from the tag document. //! * Search for tags and text in the tree of Dom structures. //! //! # Usage //! Add this to your `Cargo.toml`: //! ``` //! [dependencies] //! parsercher = "1.0.0" //! ``` //! //! # Examples //! **Example of getting text from HTML.** //! Create a tree of Dom structure from HTML and get the text of `li` tag that value of `class` attribute is `target`. //! ```rust //! use std::collections::HashMap; //! use parsercher; //! use parsercher::dom::Tag; //! //! let html = r#" //! <!DOCTYPE html> //! <html> //! <head> //! <meta charset="UTF-8"> //! <title>sample html</title> //! </head> //! <body> //! <ol> //! <li class="target">first</li> //! <li>second</li> //! <li class="target">therd</li> //! </ol> //! </body> //! </html> //! "#; //! //! if let Ok(root_dom) = parsercher::parse(&html) { //! let mut needle = Tag::new("li".to_string()); //! let mut attr = HashMap::new(); //! attr.insert("class".to_string(), "target".to_string()); //! needle.set_attr(attr); //! //! if let Some(texts) = parsercher::search_text_from_tag_children(&root_dom, &needle) { //! assert_eq!(texts.len(), 2); //! assert_eq!(texts[0], "first".to_string()); //! assert_eq!(texts[1], "therd".to_string()); //! } //! } //! ``` //! //! **More complex examples of Dom structure tree** //! ```rust //! use parsercher; //! //! let html = r#" //! <!DOCTYPE html> //! <html> //! <head> //! <meta charset="UTF-8"> //! <title>sample html</title> //! </head> //! <body> //! <h1>Hello, world!</h1> //! //! <div id="content"></div> //! //! <ol> //! <li>first</li> //! <li>second</li> //! <li>therd</li> //! </ol> //! <!-- All script code becomes one text --> //! <script> //! let content = document.getElementById('content'); //! content.textContent = 'content'; //! </script> //! </body> //! </html> //! "#; //! //! if let Ok(dom) = parsercher::parse(&html) { //! println!("{:#?}", dom); //! } //! ``` //! //! output: //! ``` //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "root", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "!DOCTYPE", //! attr: Some( //! { //! "html": "", //! }, //! ), //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: None, //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "html", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "head", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "meta", //! attr: Some( //! { //! "charset": "UTF-8", //! }, //! ), //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: None, //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "title", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "sample html", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! ], //! ), //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "body", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "h1", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "Hello, world!", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "div", //! attr: Some( //! { //! "id": "content", //! }, //! ), //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: None, //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "ol", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "li", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "first", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "li", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "second", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "li", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "therd", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! ], //! ), //! }, //! Dom { //! dom_type: Comment, //! tag: None, //! text: None, //! comment: Some( //! Comment { //! comment: " All script code becomes one text ", //! }, //! ), //! children: None, //! }, //! Dom { //! dom_type: Tag, //! tag: Some( //! Tag { //! name: "script", //! attr: None, //! terminated: false, //! terminator: false, //! }, //! ), //! text: None, //! comment: None, //! children: Some( //! [ //! Dom { //! dom_type: Text, //! tag: None, //! text: Some( //! Text { //! text: "\n let content = document.getElementById(\'content\');\n content.textContent = \'content\';\n", //! }, //! ), //! comment: None, //! children: None, //! }, //! ], //! ), //! }, //! ], //! ), //! }, //! ], //! ), //! }, //! ], //! ), //! } //! ``` //! pub mod dom; mod parser; mod searcher; pub use parser::parse; pub use parser::print_dom_tree; pub use searcher::satisfy_sufficient_condition; pub use searcher::search_tag; pub use searcher::search_tag_from_name; pub use searcher::search_text_from_tag_children;