1 files changed, 142 insertions, 0 deletions
diff --git a/data/extensions/uBlock0@raymondhill.net/js/static-filtering-io.js b/data/extensions/uBlock0@raymondhill.net/js/static-filtering-io.js
new file mode 100644
index 0000000..db8478f
--- /dev/null
+++ b/data/extensions/uBlock0@raymondhill.net/js/static-filtering-io.js
@@ -0,0 +1,142 @@
+/*******************************************************************************
+
+    uBlock Origin - a comprehensive, efficient content blocker
+    Copyright (C) 2014-present Raymond Hill
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+    Home: https://github.com/gorhill/uBlock
+*/
+
+/******************************************************************************/
+
+// https://www.reddit.com/r/uBlockOrigin/comments/oq6kt5/ubo_loads_generic_filter_instead_of_specific/
+//   Ensure blocks of content are sorted in ascending id order, such that the
+//   specific cosmetic filters will be found (and thus reported) before the
+//   generic ones.
+
+const serialize = JSON.stringify;
+const unserialize = JSON.parse;
+
+const blockStartPrefix = '#block-start-';  // ensure no special regex characters
+const blockEndPrefix = '#block-end-';      // ensure no special regex characters
+
+class CompiledListWriter {
+    constructor() {
+        this.blockId = undefined;
+        this.block = undefined;
+        this.blocks = new Map();
+        this.properties = new Map();
+    }
+    push(args) {
+        this.block.push(serialize(args));
+    }
+    pushMany(many) {
+        for ( const args of many ) {
+            this.block.push(serialize(args));
+        }
+    }
+    last() {
+        if ( Array.isArray(this.block) && this.block.length !== 0 ) {
+            return this.block[this.block.length - 1];
+        }
+    }
+    select(blockId) {
+        if ( blockId === this.blockId ) { return; }
+        this.blockId = blockId;
+        this.block = this.blocks.get(blockId);
+        if ( this.block === undefined ) {
+            this.blocks.set(blockId, (this.block = []));
+        }
+        return this;
+    }
+    toString() {
+        const result = [];
+        const sortedBlocks =
+            Array.from(this.blocks).sort((a, b) => a[0] - b[0]);
+        for ( const [ id, lines ] of sortedBlocks ) {
+            if ( lines.length === 0 ) { continue; }
+            result.push(
+                blockStartPrefix + id,
+                lines.join('\n'),
+                blockEndPrefix + id
+            );
+        }
+        return result.join('\n');
+    }
+    static serialize(arg) {
+        return serialize(arg);
+    }
+}
+
+class CompiledListReader {
+    constructor(raw, blockId) {
+        this.block = '';
+        this.len = 0;
+        this.offset = 0;
+        this.line = '';
+        this.blocks = new Map();
+        this.properties = new Map();
+        const reBlockStart = new RegExp(`^${blockStartPrefix}([\\w:]+)\\n`, 'gm');
+        let match = reBlockStart.exec(raw);
+        while ( match !== null ) {
+            const sectionId = match[1];
+            const beg = match.index + match[0].length;
+            const end = raw.indexOf(blockEndPrefix + sectionId, beg);
+            this.blocks.set(sectionId, raw.slice(beg, end));
+            reBlockStart.lastIndex = end;
+            match = reBlockStart.exec(raw);
+        }
+        if ( blockId !== undefined ) {
+            this.select(blockId);
+        }
+    }
+    next() {
+        if ( this.offset === this.len ) {
+            this.line = '';
+            return false;
+        }
+        let pos = this.block.indexOf('\n', this.offset);
+        if ( pos !== -1 ) {
+            this.line = this.block.slice(this.offset, pos);
+            this.offset = pos + 1;
+        } else {
+            this.line = this.block.slice(this.offset);
+            this.offset = this.len;
+        }
+        return true;
+    }
+    select(blockId) {
+        this.block = this.blocks.get(blockId) || '';
+        this.len = this.block.length;
+        this.offset = 0;
+        return this;
+    }
+    fingerprint() {
+        return this.line;
+    }
+    args() {
+        return unserialize(this.line);
+    }
+    static unserialize(arg) {
+        return unserialize(arg);
+    }
+}
+
+/******************************************************************************/
+
+export {
+    CompiledListReader,
+    CompiledListWriter,
+};