add hjq scroll

shelf/hjq/main.ts

@@ -0,0 +1,44 @@
+// a basic drop-in replacement for jq to handle HJSON
+// tries to preserve comments but doesn't do a very good job :(
+
+import Hjson from "npm:hjson";
+import jqModule from "npm:jq-web";
+import fs from "node:fs";
+
+const jq = await jqModule;
+
+var filter = process.argv[2];
+if (!filter) {
+    filter = '.';
+}
+
+const input = fs.readFileSync(0, 'utf8');
+
+try {
+    const data = Hjson.parse(input, { keepWsc: true });
+
+    const result = jq.json(data, filter);
+
+    // Only try to preserve comments if the result is an object or array
+    if (result !== null && typeof result === 'object') {
+        // Extract comments before transformation
+        const comments = Hjson.comments.extract(data);
+
+        // Merge comments back into the transformed result
+        if (comments) {
+            Hjson.comments.merge(comments, result);
+        }
+
+        const output = Hjson.stringify(result, {
+            keepWsc: true,
+            bracesSameLine: true
+        });
+
+        console.log(output);
+    } else {
+        console.log(JSON.stringify(result));
+    }
+} catch (error) {
+    console.error(error);
+    process.exit(1);
+}