add map_xml_to_json_per_child

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "quickxml_to_serde"
-version = "0.6.0"
+version = "0.7.0"
 authors = ["Alec Troemel <alec@mirusresearch.com>", "Max Voskob <max@onebro.me>"]
 description = "Convert between XML JSON using quickxml and serde"
 repository = "https://github.com/AlecTroemel/quickxml_to_serde"

src/lib.rs

@@ -445,6 +445,25 @@ pub fn xml_string_to_json(xml: String, config: &Config) -> Result<Value, Error>
     xml_str_to_json(xml.as_str(), config)
 }
 
+/// Returns a Vector of (original xml string, JSON Value) per top level children in the original xml file.
+/// This is useful if the XML is a collection of repeated blocks, and you want the original XML of that block.
+pub fn map_xml_to_json_per_child(
+    xml: String,
+    config: &Config,
+) -> Result<Vec<(String, Value)>, Error> {
+    let root = Element::from_str(xml.as_str())?;
+    let iterator = root.children().map(|child| {
+        let mut xml = Vec::new();
+        child.write_to(&mut xml).expect("successfully write to vec");
+
+        let child_xml_str = String::from_utf8(xml).unwrap();
+        let child_json = xml_to_map(&child, config);
+        (child_xml_str, child_json)
+    });
+
+    Ok(iterator.collect())
+}
+
 /// Returns a tuple for Array and Value enforcements for the current node or
 /// `(false, JsonArray::Infer(JsonType::Infer)` if the current path is not found
 /// in the list of paths with custom config.

src/tests.rs

@@ -377,7 +377,8 @@ fn convert_test_files() {
         assert!(
             file.write_all(to_string_pretty(&json).unwrap().as_bytes())
                 .is_ok(),
-            format!("Failed on {:?}", entry.as_os_str())
+            "Failed on {:?}",
+            entry.as_os_str()
         );
     }
 }
@@ -463,3 +464,20 @@ fn test_regex_json_type_overrides() {
     let result = xml_string_to_json(String::from(xml), &config);
     assert_eq!(expected, result.unwrap());
 }
+
+#[test]
+fn test_map_xml_to_json_per_child() {
+    let xml = r#"
+        <root>
+          <a><b>123</b></a>
+          <a><b>456</b></a>
+        </root>
+    "#;
+
+    let expected = vec![
+        (String::from("<a><b>123</b></a>"), json!({"a": { "b": 123}})),
+        (String::from("<a><b>456</b></a>"), json!({"a": { "b": 456}})),
+    ];
+    let result = map_xml_to_json_per_child(String::from(xml), &Config::new_with_defaults());
+    assert_eq!(expected, result.unwrap());
+}