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Add DOMString floating point string test and fix

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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.
This commit is contained in:
glowe 2019-11-30 23:29:09 -05:00
parent 23359c5868
commit 576f51f598
3 changed files with 27 additions and 5 deletions
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10
components/script/dom/bindings/str.rs
View file

@ -3,11 +3,11 @@
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
//! The `ByteString` struct.
use chrono::prelude::{Utc, Weekday};
use chrono::{Datelike, TimeZone};
use cssparser::CowRcStr;
use html5ever::{LocalName, Namespace};
use regex::Regex;
use servo_atoms::Atom;
use std::borrow::{Borrow, Cow, ToOwned};
use std::default::Default;
@ -337,11 +337,11 @@ impl DOMString {
/// https://html.spec.whatwg.org/multipage/#valid-floating-point-number
pub fn is_valid_floating_point_number_string(&self) -> bool {
// for the case that `parse_floating_point_number` cannot handle
if self.0.contains(" ") {
return false;
lazy_static! {
static ref RE: Regex =
Regex::new(r"^-?(?:\d+\.\d+|\d+|\.\d+)(?:(e|E)(\+|\-)?\d+)?$").unwrap();
}
parse_floating_point_number(&self.0).is_ok()
RE.is_match(&self.0) && parse_floating_point_number(&self.0).is_ok()
}
/// https://html.spec.whatwg.org/multipage/#best-representation-of-the-number-as-a-floating-point-number