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src/compare/sexp.rs

@@ -113,24 +113,21 @@ fn is_slice_of(parent: &str, child: &str) -> bool {
 /// Get a slice of the string that was consumed in a parser using the original input to the parser and the remaining input after the parser.
 fn get_consumed<'s>(input: &'s str, remaining: &'s str) -> &'s str {
     debug_assert!(is_slice_of(input, remaining));
-    let source = {
-        let offset = remaining.as_ptr() as usize - input.as_ptr() as usize;
-        &input[..offset]
-    };
-    source.into()
+    let offset = remaining.as_ptr() as usize - input.as_ptr() as usize;
+    &input[..offset]
 }
 
 pub(crate) fn unquote(text: &str) -> Result<String, Box<dyn std::error::Error>> {
     let mut out: Vec<u8> = Vec::with_capacity(text.len());
-    if !text.starts_with(r#"""#) {
+    if !text.starts_with('"') {
         return Err("Quoted text does not start with quote.".into());
     }
-    if !text.ends_with(r#"""#) {
+    if !text.ends_with('"') {
         return Err("Quoted text does not end with quote.".into());
     }
     let interior_text = &text[1..(text.len() - 1)];
     let mut state = ParseState::Normal;
-    for current_char in interior_text.bytes().into_iter() {
+    for current_char in interior_text.bytes() {
         // Check to see if octal finished
         state = match (state, current_char) {
             (ParseState::Octal(octal), b'0'..=b'7') if octal.len() < MAX_OCTAL_LENGTH => {
@@ -229,11 +226,9 @@ fn atom<'s>(input: &'s str) -> Res<&'s str, Token<'s>> {
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 fn unquoted_atom<'s>(input: &'s str) -> Res<&'s str, Token<'s>> {
-    let (remaining, body) = take_till1(|c| match c {
-        ' ' | '\t' | '\r' | '\n' | ')' | ']' => true,
-        _ => false,
-    })(input)?;
-    Ok((remaining, Token::Atom(body.into())))
+    let (remaining, body) =
+        take_till1(|c| matches!(c, ' ' | '\t' | '\r' | '\n' | ')' | ']'))(input)?;
+    Ok((remaining, Token::Atom(body)))
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
@@ -264,22 +259,19 @@ fn quoted_atom<'s>(input: &'s str) -> Res<&'s str, Token<'s>> {
     }
     let (remaining, _) = tag(r#"""#)(remaining)?;
     let source = get_consumed(input, remaining);
-    Ok((remaining, Token::Atom(source.into())))
+    Ok((remaining, Token::Atom(source)))
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 fn hash_notation<'s>(input: &'s str) -> Res<&'s str, Token<'s>> {
     let (remaining, _) = tag("#<")(input)?;
-    let (remaining, _body) = take_till1(|c| match c {
-        '>' => true,
-        _ => false,
-    })(remaining)?;
+    let (remaining, _body) = take_till1(|c| matches!(c, '>'))(remaining)?;
     let (remaining, _) = tag(">")(remaining)?;
     let source = get_consumed(input, remaining);
-    Ok((remaining, Token::Atom(source.into())))
+    Ok((remaining, Token::Atom(source)))
 }
 
-fn text_with_properties<'s>(input: &'s str) -> Res<&'s str, Token<'s>> {
+fn text_with_properties(input: &str) -> Res<&str, Token<'_>> {
     let (remaining, _) = tag("#(")(input)?;
     let (remaining, (text, props)) = delimited(
         multispace0,