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Slightly simplify parse_one_simple_selector.

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This commit is contained in:
Xidorn Quan 2017-07-12 15:07:22 +10:00
parent f85778884f
commit d138fd1a32
1 changed files with 11 additions and 14 deletions
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25
components/selectors/parser.rs
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@ -1490,13 +1490,12 @@ fn parse_one_simple_selector<'i, 't, P, E, Impl>(parser: &P,
Ok(Some(SimpleSelectorParseResult::SimpleSelector(id)))
}
Ok(Token::Delim('.')) => {
match input.next_including_whitespace() {
Ok(Token::Ident(class)) => {
match input.next_including_whitespace()? {
Token::Ident(class) => {
let class = Component::Class(from_cow_str(class.into()));
Ok(Some(SimpleSelectorParseResult::SimpleSelector(class)))
}
Ok(t) => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
Err(e) => Err(ParseError::Basic(e)),
t => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
}
}
Ok(Token::SquareBracketBlock) => {
@ -1504,8 +1503,8 @@ fn parse_one_simple_selector<'i, 't, P, E, Impl>(parser: &P,
Ok(Some(SimpleSelectorParseResult::SimpleSelector(attr)))
}
Ok(Token::Colon) => {
match input.next_including_whitespace() {
Ok(Token::Ident(name)) => {
match input.next_including_whitespace()? {
Token::Ident(name) => {
// Supported CSS 2.1 pseudo-elements only.
// ** Do not add to this list! **
if name.eq_ignore_ascii_case("before") ||
@ -1519,24 +1518,22 @@ fn parse_one_simple_selector<'i, 't, P, E, Impl>(parser: &P,
Ok(Some(SimpleSelectorParseResult::SimpleSelector(pseudo_class)))
}
}
Ok(Token::Function(name)) => {
Token::Function(name) => {
let pseudo = input.parse_nested_block(|input| {
parse_functional_pseudo_class(parser, input, name, inside_negation)
})?;
Ok(Some(SimpleSelectorParseResult::SimpleSelector(pseudo)))
}
Ok(Token::Colon) => {
match input.next_including_whitespace() {
Ok(Token::Ident(name)) => {
Token::Colon => {
match input.next_including_whitespace()? {
Token::Ident(name) => {
let pseudo = P::parse_pseudo_element(parser, name)?;
Ok(Some(SimpleSelectorParseResult::PseudoElement(pseudo)))
}
Ok(t) => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
Err(e) => Err(ParseError::Basic(e)),
t => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
}
}
Ok(t) => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
Err(e) => Err(ParseError::Basic(e)),
t => Err(ParseError::Basic(BasicParseError::UnexpectedToken(t))),
}
}
_ => {