refactor(ast_codegen): move formatting regex definitions

tasks/ast_codegen/src/fmt.rs

@@ -7,7 +7,17 @@ use syn::parse_file;
 
 static INSERT_MACRO_IDENT: &str = "insert";
 static ENDL_MACRO_IDENT: &str = "endl";
-static WHITE_SPACES: &str = "   ";
+static WHITE_SPACE: &str = " ";
+
+lazy_static! {
+    static ref INSERT_REGEX: Regex = Regex::new(
+        format!(
+            r#"(?m)^{WHITE_SPACE}*{INSERT_MACRO_IDENT}!\([\n\s\S]*?\"([\n\s\S]*?)\"[\n\s\S]*?\);$"#
+        )
+        .as_str()
+    )
+    .unwrap();
+}
 
 struct InsertReplacer;
 
@@ -21,6 +31,11 @@ impl Replacer for InsertReplacer {
     }
 }
 
+lazy_static! {
+    static ref ENDL_REGEX: Regex =
+        Regex::new(format!(r"{WHITE_SPACE}*{ENDL_MACRO_IDENT}!\(\);").as_str()).unwrap();
+}
+
 struct EndlReplacer;
 
 impl Replacer for EndlReplacer {
@@ -29,21 +44,6 @@ impl Replacer for EndlReplacer {
 
 /// Pretty Print
 pub fn pprint(input: &TokenStream) -> String {
-    lazy_static! {
-        static ref INSERT_REGEX: Regex = Regex::new(
-            format!(
-                r#"(?m)^[{WHITE_SPACES}]*{INSERT_MACRO_IDENT}!\([\n\s\S]*?\"([\n\s\S]*?)\"[\n\s\S]*?\);$"#
-            )
-            .as_str()
-        )
-        .unwrap();
-    };
-
-    lazy_static! {
-        static ref ENDL_REGEX: Regex =
-            Regex::new(format!(r"[{WHITE_SPACES}]*{ENDL_MACRO_IDENT}!\(\);").as_str()).unwrap();
-    };
-
     let result = prettyplease::unparse(&parse_file(input.to_string().as_str()).unwrap());
     let result = ENDL_REGEX.replace_all(&result, EndlReplacer);
     let result = INSERT_REGEX.replace_all(&result, InsertReplacer).to_string();