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Simplify often-executed regex

This commit is contained in:
Raymond Hill 2021-12-10 07:47:21 -05:00
parent c71b7c7a42
commit 1490fd606b
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GPG Key ID: 25E1490B761470C2
1 changed files with 16 additions and 14 deletions
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30
src/js/uri-utils.js
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@ -31,8 +31,8 @@ import punycode from '../lib/punycode.js';
// Originally:
// https://github.com/gorhill/uBlock/blob/8b5733a58d3acf9fb62815e14699c986bd1c2fdc/src/js/uritools.js
const reCommonHostnameFromURL =
/^https?:\/\/([0-9a-z_][0-9a-z._-]*[0-9a-z])\//;
const reHostnameFromCommonURL =
/^https:\/\/[0-9a-z._-]+[0-9a-z]\//;
const reAuthorityFromURI =
/^(?:[^:\/?#]+:)?(\/\/[^\/?#]+)/;
const reHostFromNakedAuthority =
@ -75,20 +75,20 @@ function entityFromDomain(domain) {
}
function hostnameFromURI(uri) {
let matches = reCommonHostnameFromURL.exec(uri);
if ( matches !== null ) { return matches[1]; }
matches = reAuthorityFromURI.exec(uri);
if ( matches === null ) { return ''; }
const authority = matches[1].slice(2);
let match = reHostnameFromCommonURL.exec(uri);
if ( match !== null ) { return match[0].slice(8, -1); }
match = reAuthorityFromURI.exec(uri);
if ( match === null ) { return ''; }
const authority = match[1].slice(2);
if ( reHostFromNakedAuthority.test(authority) ) {
return authority.toLowerCase();
}
matches = reHostFromAuthority.exec(authority);
if ( matches === null ) {
matches = reIPv6FromAuthority.exec(authority);
if ( matches === null ) { return ''; }
match = reHostFromAuthority.exec(authority);
if ( match === null ) {
match = reIPv6FromAuthority.exec(authority);
if ( match === null ) { return ''; }
}
let hostname = matches[1];
let hostname = match[1];
while ( hostname.endsWith('.') ) {
hostname = hostname.slice(0, -1);
}
@ -104,8 +104,10 @@ function hostnameFromNetworkURL(url) {
}
function originFromURI(uri) {
const matches = reOriginFromURI.exec(uri);
return matches !== null ? matches[0].toLowerCase() : '';
let match = reHostnameFromCommonURL.exec(uri);
if ( match !== null ) { return match[0].slice(0, -1); }
match = reOriginFromURI.exec(uri);
return match !== null ? match[0].toLowerCase() : '';
}
function isNetworkURI(uri) {