Avoided the redundant allocation.

FrankHB · FrankHB · commit 780fb979a046 · 2020-09-29T18:01:06.000+08:00
Signed-off-by: FrankHB &lt;frankhb1989@gmail.com&gt;
diff --git a/src/book/book.rs b/src/book/book.rs
@@ -265,7 +265,7 @@ fn load_chapter<P: AsRef<Path>>(
         })?;
 
         if content.as_bytes().starts_with(b"\xef\xbb\xbf") {
-            content = content[3..].to_string()
+            content.replace_range(..3, "");
         }
 
         let stripped = location

Original file line number	Diff line number	Diff line change
`@@ -265,7 +265,7 @@ fn load_chapter<P: AsRef<Path>>(`
`265`	`265`	`})?;`
`266`	`266`
`267`	`267`	`if content.as_bytes().starts_with(b"\xef\xbb\xbf") {`
`268`		`- content = content[3..].to_string()`
	`268`	`+ content.replace_range(..3, "");`
`269`	`269`	`}`
`270`	`270`
`271`	`271`	`let stripped = location`