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node_modules/pidtree/lib/parse.js

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+/**
+ * Parses the `<ppid> <pid>` output produced by the ps/wmic/powershell backends
+ * into a list of `[ppid, pid]` pairs. The header row and any non-numeric lines
+ * are skipped, and all common line endings (\n, \r\n, \r\r\n) are handled.
+ * @param {string} stdout The raw command output.
+ * @returns {Array<[number, number]>}
+ */
+export function parse(stdout) {
+  const list = [];
+  for (const rawLine of stdout.split(/\r*\n/)) {
+    const line = rawLine.trim();
+    if (!line) continue;
+
+    const [rawPpid, rawPid] = line.split(/\s+/);
+    const ppid = Number.parseInt(rawPpid, 10);
+    const pid = Number.parseInt(rawPid, 10);
+    // Skips the header row and any stray output.
+    if (Number.isNaN(ppid) || Number.isNaN(pid)) continue;
+
+    list.push([ppid, pid]);
+  }
+
+  return list;
+}