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Update parse_length to match spec

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This commit is contained in:
Tipowol 2020-04-03 20:10:57 +02:00
parent e66ab111a6
commit 94f08adfc7
4 changed files with 4 additions and 171 deletions
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14
components/style/attr.rs
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@ -539,28 +539,18 @@ pub fn parse_length(mut value: &str) -> LengthOrPercentageOrAuto {
value = value.trim_start_matches(HTML_SPACE_CHARACTERS);
// Step 4
if value.is_empty() {
return LengthOrPercentageOrAuto::Auto;
}
// Step 5
if value.starts_with('+') {
value = &value[1..]
}
// Steps 6 & 7
match value.chars().nth(0) {
Some('0'..='9') => {},
_ => return LengthOrPercentageOrAuto::Auto,
}
// Steps 8 to 13
// Steps 5 to 8
// We trim the string length to the minimum of:
// 1. the end of the string
// 2. the first occurence of a '%' (U+0025 PERCENT SIGN)
// 3. the second occurrence of a '.' (U+002E FULL STOP)
// 4. the occurrence of a character that is neither a digit nor '%' nor '.'
// Note: Step 10 is directly subsumed by FromStr::from_str
// Note: Step 7.4 is directly subsumed by FromStr::from_str
let mut end_index = value.len();
let (mut found_full_stop, mut found_percent) = (false, false);
for (i, ch) in value.chars().enumerate() {