JS側のRegExpを使用する: read_house_number.rs

src/parser/read_house_number.rs

@@ -1,8 +1,7 @@
-use regex::Regex;
-
 #[allow(dead_code)]
-pub fn read_house_number(input: &str) -> Option<(String, String)> {
-    let expression = Regex::new(r"(?<house_number>\d+)\D*(?<rest>.*)$").unwrap();
+#[cfg(not(target_arch = "wasm32"))]
+fn read_house_number_with_regex(input: &str) -> Option<(String, String)> {
+    let expression = regex::Regex::new(r"(?<house_number>\d+)\D*(?<rest>.*)$").unwrap();
     let captures = expression.captures(input)?;
     let house_number = if let Some(matched) = captures.name("house_number") {
         matched.as_str()
@@ -17,20 +16,52 @@ pub fn read_house_number(input: &str) -> Option<(String, String)> {
     Some((rest.to_string(), format!("{}番", house_number)))
 }
 
-#[cfg(test)]
-mod read_house_number_tests {
-    use crate::parser::read_house_number::read_house_number;
+#[allow(dead_code)]
+#[cfg(target_arch = "wasm32")]
+fn read_house_number_with_js_sys_regexp(input: &str) -> Option<(String, String)> {
+    let expression = js_sys::RegExp::new(r"(?<house_number>\d+)\D*(?<rest>.*)$", "");
+    let captures = expression.exec(input)?;
+    let house_number = captures.get(1).as_string()?;
+    let rest = captures
+        .get(2)
+        .as_string()
+        .unwrap_or_else(|| "".to_string());
+    Some((rest, format!("{}番", house_number)))
+}
+
+#[cfg(all(test, not(target_arch = "wasm32")))]
+mod tests {
+    use crate::parser::read_house_number::read_house_number_with_regex;
 
     #[test]
     fn read_house_number_1番() {
-        let (rest, house_number) = read_house_number("1").unwrap();
+        let (rest, house_number) = read_house_number_with_regex("1").unwrap();
         assert_eq!(house_number, "1番");
         assert_eq!(rest, "");
     }
 
     #[test]
     fn read_house_number_3番2() {
-        let (rest, house_number) = read_house_number("3-2").unwrap();
+        let (rest, house_number) = read_house_number_with_regex("3-2").unwrap();
+        assert_eq!(house_number, "3番");
+        assert_eq!(rest, "2");
+    }
+}
+
+#[cfg(all(test, target_arch = "wasm32"))]
+mod wasm_tests {
+    use crate::parser::read_house_number::read_house_number_with_js_sys_regexp;
+    use wasm_bindgen_test::{wasm_bindgen_test, wasm_bindgen_test_configure};
+
+    wasm_bindgen_test_configure!(run_in_browser);
+
+    #[wasm_bindgen_test]
+    fn read_house_number_with_js_sys_regexp_success() {
+        let (rest, house_number) = read_house_number_with_js_sys_regexp("1").unwrap();
+        assert_eq!(house_number, "1番");
+        assert_eq!(rest, "");
+
+        let (rest, house_number) = read_house_number_with_js_sys_regexp("3-2").unwrap();
         assert_eq!(house_number, "3番");
         assert_eq!(rest, "2");
     }