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Minor review of redirect-related code
Notably, I finally settled for implicit priority of 0, but now negative priority values are allowed.
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@ -187,7 +187,7 @@ CodeMirror.defineMode('ubo-static-filtering', function() {
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/[$,]redirect(-rule)?=$/.test(string.slice(0, pos))
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) {
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style = 'value';
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let end = parser.skipUntil(
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const end = parser.skipUntil(
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parserSlot,
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parser.commentSpan.i,
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parser.BITComma
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@ -291,11 +291,11 @@ RedirectEngine.prototype.freeze = function() {
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/******************************************************************************/
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RedirectEngine.prototype.tokenToURL = function(fctxt, token) {
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const asDataURI = token.charCodeAt(0) === 0x25 /* '%' */;
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if ( asDataURI ) {
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token = token.slice(1);
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}
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RedirectEngine.prototype.tokenToURL = function(
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fctxt,
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token,
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asDataURI = false
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) {
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const entry = this.resources.get(this.aliases.get(token) || token);
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if ( entry === undefined ) { return; }
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this.resourceNameRegister = token;
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@ -1164,13 +1164,15 @@ const Parser = class {
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static parseRedirectValue(arg) {
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let token = arg.trim();
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let priority = 10;
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const match = /:\d+$/.exec(token);
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let priority = 0;
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const asDataURI = token.charCodeAt(0) === 0x25 /* '%' */;
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if ( asDataURI ) { token = token.slice(1); }
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const match = /:-?\d+$/.exec(token);
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if ( match !== null ) {
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token = token.slice(0, match.index);
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priority = parseInt(token.slice(match.index + 1), 10);
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}
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return { token, priority };
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return { token, priority, asDataURI };
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}
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static parseQueryPruneValue(arg) {
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@ -4236,12 +4236,13 @@ FilterContainer.prototype.redirectRequest = function(fctxt) {
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const directives = this.matchAndFetchModifiers(fctxt, 'redirect-rule');
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// No directive is the most common occurrence.
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if ( directives === undefined ) { return; }
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const highest = directives.length - 1;
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// More than a single directive means more work.
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if ( directives.length !== 1 ) {
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if ( highest !== 0 ) {
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directives.sort(FilterContainer.compareRedirectRequests);
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}
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// Redirect to highest-ranked directive
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const directive = directives[directives.length - 1];
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const directive = directives[highest];
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if ( (directive.bits & AllowAction) === 0 ) {
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const { token } =
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FilterContainer.parseRedirectRequestValue(directive.modifier);
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