commit 0c6686f5a02b17f7a1bb267677009d03fd62baa6
Author: Leon van Kammen <leonvankammen@gmail.com>
Date:   Tue Sep 30 13:20:59 2025 +0200

    initial commit

diff --git a/README.awk b/README.awk
new file mode 100755
index 0000000..ff30545
--- /dev/null
+++ b/README.awk
@@ -0,0 +1,41 @@
+#!/usr/bin/env -S awk -f
+# a no-nonsense source-to-markdown generator which scans for:
+#
+# /**
+#  * # foo
+#  *
+#  * this is markdown $(cat bar.md)
+#  */
+#
+#  var foo; //  comment with 2 leading spaces is markdown too $(date)
+#
+# easily refactorable to hash-based languages (py/bash/perl/lua e.g.) 
+# by changing the regexes
+#
+
+BEGIN{
+  # printf README.md until '# Component List'
+  system("grep -B9999 '# Functions' README.md")
+  print ""
+}
+
+/\$(?![\(|"])/           { cmd=$0; 
+                           gsub(/^.*\$\(/,"",cmd); 
+                           gsub(/\).*/,"",cmd);
+                           cmd | getline stdout; close(cmd);
+                           sub(/\$\(.*\)/,stdout);
+                         } 
+/\/\*\*/                 { doc=1; sub(/^.*\/\*/,""); }
+doc && /\*\//            { doc=0;
+                           sub(/[[:space:]]*\*\/.*/,"");
+                           sub(/^[[:space:]]*\*[[:space:]]?/,"");
+                           print
+                         }
+doc && /^[[:space:]]*\*/ { sub(/^[[:space:]]*\*[[:space:]]?/,""); 
+                           print 
+                         }
+#!doc && /\/\/  /         { sub(".*//  ",""); 
+#                           sub("# ","\n# ");
+#                           sub("> ","\n> ");
+#                           print
+#                         }
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..fdc492d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+XR Fragment utilities 
+=====================
+
+These are helper functions to make 3D (javascript) viewers XR Fragment compatible.
+
+
+See function list below
+
+> this README.md is generated by running `echo "$(./README.awk *.js)" > README.md`
+
+# Function list
diff --git a/level0.js b/level0.js
new file mode 100644
index 0000000..e1a124e
--- /dev/null
+++ b/level0.js
@@ -0,0 +1,24 @@
+import * as http from './scheme/http.js'
+import * as xrf  from './scheme/http.js'
+
+function defaultSchemes(){
+  return {http,xrf}
+}
+
+async function pollSideCarFiles(urlString, opts){
+
+  opts        = {}
+  opts.scheme = opts.scheme || defaultSchemes()
+  let p       = []
+  const sext  = [".png",".ogg",".vtt",".json"]
+  ext         = urlString.lastIndexOf('.')
+
+  for( let i in ext) p.push( 
+    new Promise( (resolve,reject) => {
+      fetch( urlString.replace(ext, sext[i] ), { method:'HEAD'} )
+    })
+  )
+  await Promise.all(p)
+}
+
+export {pollSideCarFiles}
diff --git a/level0.test.js b/level0.test.js
new file mode 100644
index 0000000..b0c0ea7
--- /dev/null
+++ b/level0.test.js
@@ -0,0 +1,6 @@
+import * as level0 from './level0.js'
+import { expect, test } from "bun:test";
+
+test("2 + 2", () => {
+  expect(2 + 2).toBe(4);
+});
diff --git a/scheme/http.js b/scheme/http.js
new file mode 100644
index 0000000..039e039
--- /dev/null
+++ b/scheme/http.js
@@ -0,0 +1,10 @@
+const profile = {
+  type: "http"
+}
+
+const fetchApi = fetch
+
+export {
+  profile, 
+  fetchApi
+}
diff --git a/scheme/xrf.js b/scheme/xrf.js
new file mode 100644
index 0000000..039e039
--- /dev/null
+++ b/scheme/xrf.js
@@ -0,0 +1,10 @@
+const profile = {
+  type: "http"
+}
+
+const fetchApi = fetch
+
+export {
+  profile, 
+  fetchApi
+}