Write cue file

src/Tools/cdtypes/src/types/cue/writer.rs

@@ -1,8 +1,12 @@
 use std::{fs::File, io::Write};
 use super::{{super::super::Error}, *};
 
-pub fn write(mut file: File, data: Vec<Specifier>) -> Result<(), Error> {
-    fn write_indent(file: &mut File, specifier: &Specifier) -> Result<(), Error> {
+pub fn write(file: File, data: Vec<Specifier>) -> Result<(), Error> {
+    write_generic(file, data)
+}
+
+pub fn write_generic<T: Write>(mut dst: T, data: Vec<Specifier>) -> Result<(), Error> {
+    fn write_indent<T: Write>(dst: &mut T, specifier: &Specifier) -> Result<(), Error> {
         let indent = {
             match specifier {
                 Specifier::File{..}  => 0,
@@ -11,14 +15,16 @@ pub fn write(mut file: File, data: Vec<Specifier>) -> Result<(), Error> {
             }
         };
 
-        write!(file, "{:indent$}", " ")?;
+        if indent > 0 {
+            write!(dst, "{:indent$}", " ")?;
+        }
         Ok(())
     }
 
     for specifier in data {
-        write_indent(&mut file, &specifier)?;
+        write_indent(&mut dst, &specifier)?;
         
-        write!(file, "{}\n", specifier)?;
+        write!(dst, "{}\n", specifier)?;
     }
 
     Ok(())