cakebaker suggestion stat.rs: Refactor to remove #[allow(clippy::cogn…

…itive_complexity)] uutils#5881

src/uu/stat/src/stat.rs

@@ -478,46 +478,41 @@ impl Stater {
  i: &mut usize,
  bound: usize,
  format_str: &str,
- use_printf: bool,
  ) -> Token {
- if use_printf {
- *i += 1;
- if *i >= bound {
- show_warning!("backslash at end of format");
- return Token::Char('\\');
- }
- match chars[*i] {
- 'x' if *i + 1 < bound => {
- if let Some((c, offset)) = format_str[*i + 1..].scan_char(16) {
- *i += offset;
- Token::Char(c)
- } else {
- show_warning!("unrecognized escape '\\x'");
- Token::Char('x')
- }
- }
- '0'..='7' => {
- let (c, offset) = format_str[*i..].scan_char(8).unwrap();
- *i += offset - 1;
- Token::Char(c)
- }
- '"' => Token::Char('"'),
- '\\' => Token::Char('\\'),
- 'a' => Token::Char('\x07'),
- 'b' => Token::Char('\x08'),
- 'e' => Token::Char('\x1B'),
- 'f' => Token::Char('\x0C'),
- 'n' => Token::Char('\n'),
- 'r' => Token::Char('\r'),
- 't' => Token::Char('\t'),
- 'v' => Token::Char('\x0B'),
- c => {
- show_warning!("unrecognized escape '\\{}'", c);
+ *i += 1;
+ if *i >= bound {
+ show_warning!("backslash at end of format");
+ return Token::Char('\\');
+ }
+ match chars[*i] {
+ 'x' if *i + 1 < bound => {
+ if let Some((c, offset)) = format_str[*i + 1..].scan_char(16) {
+ *i += offset;
  Token::Char(c)
+ } else {
+ show_warning!("unrecognized escape '\\x'");
+ Token::Char('x')
  }
  }
- } else {
- Token::Char('\\')
+ '0'..='7' => {
+ let (c, offset) = format_str[*i..].scan_char(8).unwrap();
+ *i += offset - 1;
+ Token::Char(c)
+ }
+ '"' => Token::Char('"'),
+ '\\' => Token::Char('\\'),
+ 'a' => Token::Char('\x07'),
+ 'b' => Token::Char('\x08'),
+ 'e' => Token::Char('\x1B'),
+ 'f' => Token::Char('\x0C'),
+ 'n' => Token::Char('\n'),
+ 'r' => Token::Char('\r'),
+ 't' => Token::Char('\t'),
+ 'v' => Token::Char('\x0B'),
+ c => {
+ show_warning!("unrecognized escape '\\{}'", c);
+ Token::Char(c)
+ }
  }
  }
 
@@ -531,9 +526,15 @@ impl Stater {
  '%' => tokens.push(Self::handle_percent_case(
  &chars, &mut i, bound, format_str,
  )?),
- '\\' => tokens.push(Self::handle_escape_sequences(
- &chars, &mut i, bound, format_str, use_printf,
- )),
+ '\\' => {
+ if use_printf {
+ tokens.push(Self::handle_escape_sequences(
+ &chars, &mut i, bound, format_str,
+ ))
+ } else {
+ tokens.push(Token::Char('\\'))
+ }
+ }
  c => tokens.push(Token::Char(c)),
  }
  i += 1;
@@ -543,6 +544,7 @@ impl Stater {
  }
  Ok(tokens)
  }
+
  fn new(matches: &ArgMatches) -> UResult<Self> {
  let files = matches
  .get_many::<OsString>(options::FILES)