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extern crate minidom; extern crate quick_xml; #[macro_use] extern crate serde_json; use minidom::Element; use quick_xml::Reader; use serde_json::{Map, Number, Value}; use std::io::BufRead; use std::str::FromStr; fn parse_text(text: &str) -> Value { match text.parse::<f64>() { Ok(v) => match Number::from_f64(v) { Some(v) => { return Value::Number(v); } _ => {} }, _ => {} } match text.parse::<bool>() { Ok(v) => { return Value::Bool(v); } _ => {} } Value::String(text.into()) } fn convert_node(el: &Element) -> Option<Value> { if el.text().trim() != "" { if el.attrs().count() > 0 { Some(Value::Object( el.attrs() .map(|(k, v)| (format!("@{}", k), parse_text(&v))) .chain(vec![("#text".to_string(), parse_text(&el.text()[..]))]) .collect(), )) } else { Some(parse_text(&el.text()[..])) } } else { let mut data = Map::new(); for (k, v) in el.attrs() { data.insert(format!("@{}", k), parse_text(&v)); } for child in el.children() { match convert_node(child) { Some(val) => { let name = &child.name().to_string(); if data.contains_key(name) { if data.get(name).unwrap_or(&Value::Null).is_array() { data.get_mut(name) .unwrap() .as_array_mut() .unwrap() .push(val); } else { let temp = data.remove(name).unwrap(); data.insert(name.clone(), Value::Array(vec![temp, val])); } } else { data.insert(name.clone(), val); } } _ => (), } } Some(Value::Object(data)) } } pub fn xml_to_map(e: &Element) -> Value { let mut data = Map::new(); data.insert( e.name().to_string(), convert_node(&e).unwrap_or(Value::Null), ); Value::Object(data) } pub fn xml_string_to_json(xml: String) -> Value { let root = Element::from_str(xml.as_str()).unwrap(); xml_to_map(&root) } pub fn map_over_children<T: BufRead, F: FnMut(&str, &Value)>(xml: T, mut iteratee: F) { let mut reader = Reader::from_reader(xml); let root = Element::from_reader(&mut reader).unwrap(); for child in root.children() { let mut child_xml = Vec::new(); child .write_to(&mut child_xml) .expect("successfully write to the vector"); let xml_string = String::from_utf8(child_xml).unwrap(); iteratee(xml_string.as_str(), &xml_to_map(&child)); } } pub fn map_of_children(root: Element) -> Vec<(String, Value)> { root.children() .map(|child| { let mut child_xml = Vec::new(); child .write_to(&mut child_xml) .expect("successfully write to the vector"); (String::from_utf8(child_xml).unwrap(), xml_to_map(&child)) }) .collect() } pub fn get_root<T: BufRead>(xml: T) -> Result<Element, minidom::Error> { let mut reader = Reader::from_reader(xml); Element::from_reader(&mut reader) } #[cfg(test)] mod tests { use super::*; use serde_json::Value; #[test] fn map_over_children_test() { let expected_list = [ ( "<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test1</b>", json!({"b": "test1"}), ), ( "<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test2</b>", json!({"b": "test2"}), ), ( "<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test3</b>", json!({"b": "test3"}), ), ]; let mut expected = expected_list.iter(); map_over_children( String::from("<a><b>test1</b><b>test2</b><b>test3</b></a>"), |xml: String, js: Value| { let expect = expected.next().unwrap(); assert_eq!(expect.0, xml); assert_eq!(expect.1, js); }, ) } #[test] fn map_of_children_test() { let expected = vec![ ( String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test1</b>"), json!({"b": "test1"}), ), ( String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test2</b>"), json!({"b": "test2"}), ), ( String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?><b>test3</b>"), json!({"b": "test3"}), ), ]; let result = map_of_children(String::from("<a><b>test1</b><b>test2</b><b>test3</b></a>")); assert_eq!(expected, result); } }