first commit

2025-10-10 18:00:07 -04:00
commit 06b59a3a99
3786 changed files with 571590 additions and 0 deletions
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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DataFile = void 0;
+class DataFile {
+    constructor(data) {
+        this.buffers = [];
+        this.pos = 0;
+        this.size = 0;
+        if (data) {
+            this.buffers.push(data);
+            this.size = data.byteLength;
+            this.pos = 0;
+        }
+    }
+    read(size) {
+        this.flatten();
+        if (size + this.pos > this.size) {
+            // size = this.size - this.pos;
+            return null;
+        }
+        const oldPos = this.pos;
+        this.pos += size;
+        // return this.buffers[0].subarray(oldPos, this.pos);
+        return this.buffers[0].slice(oldPos, this.pos);
+    }
+    readAll() {
+        this.flatten();
+        return this.buffers[0] || new Uint8Array();
+    }
+    write(data) {
+        this.buffers.push(data);
+        this.size += data.byteLength;
+        this.pos += data.byteLength;
+        return true;
+    }
+    tell() {
+        return this.pos;
+    }
+    seek(pos, method) {
+        let newPos = this.pos;
+        if (method === 'SET') {
+            newPos = pos;
+        }
+        else if (method === 'CUR') {
+            newPos += pos;
+        }
+        else {
+            newPos = this.size - pos;
+        }
+        if (newPos < 0 || newPos > this.size) {
+            return false;
+        }
+        this.pos = newPos;
+        return true;
+    }
+    flatten() {
+        if (this.buffers.length <= 1) {
+            return;
+        }
+        const newBuffer = new Uint8Array(this.size);
+        let offset = 0;
+        for (const buffer of this.buffers) {
+            newBuffer.set(buffer, offset);
+            offset += buffer.byteLength;
+        }
+        this.buffers = [newBuffer];
+    }
+}
+exports.DataFile = DataFile;
+//# sourceMappingURL=ExtractorData.helper.js.map