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remotion/node_modules/@remotion/renderer/dist/serve-handler/range-parser.js

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+"use strict";
+/*!
+ * range-parser
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.rangeParser = void 0;
+const rangeParser = (size, str) => {
+    if (typeof str !== 'string') {
+        throw new TypeError('argument str must be a string');
+    }
+    const index = str.indexOf('=');
+    if (index === -1) {
+        return -2;
+    }
+    // split the range string
+    const arr = str.slice(index + 1).split(',');
+    const ranges = [];
+    // add ranges type
+    const type = str.slice(0, index);
+    // parse all ranges
+    for (let i = 0; i < arr.length; i++) {
+        const range = arr[i].split('-');
+        let start = parseInt(range[0], 10);
+        let end = parseInt(range[1], 10);
+        // -nnn
+        if (isNaN(start)) {
+            start = size - end;
+            end = size - 1;
+            // nnn-
+        }
+        else if (isNaN(end)) {
+            end = size - 1;
+        }
+        // limit last-byte-pos to current length
+        if (end > size - 1) {
+            end = size - 1;
+        }
+        // invalid or unsatisifiable
+        if (isNaN(start) || isNaN(end) || start > end || start < 0) {
+            continue;
+        }
+        // add range
+        ranges.push({
+            start,
+            end,
+        });
+    }
+    if (ranges.length < 1) {
+        // unsatisifiable
+        return -1;
+    }
+    return { ranges, type };
+};
+exports.rangeParser = rangeParser;