improves block functionality

adds cli compatible prompts/logs
adds logfile function for debug
adds multiselect support
new fieldRename
adds listFieldNames

util/dedent.ts

@@ -0,0 +1,18 @@
+export function dedent(str: string) {
+  const lines = str.split("\n");
+  const indent = lines.reduce((count, line) => {
+    if (line.trim() === "") return count;
+    const match = line.match(/^(\s*)/);
+    return match ? Math.min(count, match[1].length) : count;
+  }, Infinity);
+  return lines.map((line) => line.slice(indent)).join("\n");
+}
+
+if (import.meta.main) {
+  console.log(dedent(`
+    Hello, World!
+      This is a paragraph
+      that spans multiple lines.
+    And this is another paragraph.
+  `));
+}

util/logfile.ts

@@ -0,0 +1,15 @@
+const logFile = Deno.openSync("./log.txt", {
+  create: true,
+  write: true,
+  read: true,
+  append: true,
+});
+
+logFile.truncateSync(0);
+
+export function log(message: any) {
+  if (typeof message === "object") {
+    message = JSON.stringify(message);
+  }
+  logFile.writeSync(new TextEncoder().encode(message + "\n"));
+}