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Add DOMString floating point string test and fix
Fixes an issue where DOMString::is_valid_floating_point_number_string was returning true for strings that began with whitespace characters- TAB, LF, FF, or CR. Also added a unit test to cover this since the corresponding web-platform-tests are incomplete.
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3 changed files with 27 additions and 5 deletions
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@ -3,11 +3,11 @@
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! The `ByteString` struct.
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use chrono::prelude::{Utc, Weekday};
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use chrono::{Datelike, TimeZone};
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use cssparser::CowRcStr;
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use html5ever::{LocalName, Namespace};
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use regex::Regex;
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use servo_atoms::Atom;
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use std::borrow::{Borrow, Cow, ToOwned};
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use std::default::Default;
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@ -337,11 +337,11 @@ impl DOMString {
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/// https://html.spec.whatwg.org/multipage/#valid-floating-point-number
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pub fn is_valid_floating_point_number_string(&self) -> bool {
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// for the case that `parse_floating_point_number` cannot handle
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if self.0.contains(" ") {
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return false;
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lazy_static! {
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static ref RE: Regex =
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Regex::new(r"^-?(?:\d+\.\d+|\d+|\.\d+)(?:(e|E)(\+|\-)?\d+)?$").unwrap();
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}
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parse_floating_point_number(&self.0).is_ok()
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RE.is_match(&self.0) && parse_floating_point_number(&self.0).is_ok()
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}
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/// https://html.spec.whatwg.org/multipage/#best-representation-of-the-number-as-a-floating-point-number
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