refactor: remove unused functions and update alignment property to use string literal

Author: dreyfus92

examples/inline-regions/index.ts

@@ -48,108 +48,6 @@ const RAINBOW = [RED, ORANGE, YELLOW, NGREEN, BLUE, VIOLET];
 
 const BRAILLE = ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"];
 
-function* queryCursor(): Operation<CursorEvent> {
-  let parser = yield* until(createInput({ escLatency: 100 }));
-  write(DSR());
-
-  let buf = new Uint8Array(32);
-  while (true) {
-    let n = Deno.stdin.readSync(buf);
-    if (n === null) continue;
-    let result = parser.scan(buf.subarray(0, n));
-    for (let ev of result.events) {
-      if (ev.type === "cursor") {
-        return ev;
-      }
-    }
-  }
-}
-
-function waitKey() {
-  let buf = new Uint8Array(32);
-  while (true) {
-    let n = Deno.stdin.readSync(buf);
-    if (n === null) continue;
-    for (let i = 0; i < n; i++) {
-      if (buf[i] === 0x03) {
-        Deno.stdin.setRaw(false);
-        write(SHOWCURSOR());
-        Deno.exit(0);
-      }
-    }
-    return;
-  }
-}
-
-function box(msg: string, fg: number, border: number): Op[] {
-  return [
-    open("root", {
-      layout: { width: grow(), height: grow(), direction: "ttb" },
-    }),
-    open("box", {
-      layout: {
-        width: grow(),
-        height: grow(),
-        direction: "ttb",
-        padding: { left: 1 },
-        alignY: "center",
-      },
-      border: {
-        color: border,
-        left: 1,
-        right: 1,
-        top: 1,
-        bottom: 1,
-      },
-      cornerRadius: { tl: 1, tr: 1, bl: 1, br: 1 },
-    }),
-    text(msg, { color: fg }),
-    close(),
-    close(),
-  ];
-}
-
-function* transaction(
-  height: number,
-  renderFrame: (frame: number) => Op[],
-  frames: number,
-  interval: number,
-): Operation<void> {
-  let { columns } = Deno.consoleSize();
-
-  write(encode("\n".repeat(height)));
-
-  let pos = yield* queryCursor();
-  /** 1-based terminal row where the region starts */
-  let row = pos.row - height + 1;
-
-  write(ESC("7"));
-  let tty = settings(cursor(false));
-  write(tty.apply);
-
-  let term = validated(
-    yield* until(createTerm({ width: columns, height })),
-  );
-  for (let i = 0; i < frames; i++) {
-    let result = term.render(renderFrame(i), { row });
-    write(new Uint8Array(result.output));
-    yield* sleep(interval);
-  }
-
-  write(tty.revert);
-  write(ESC("8"));
-  write(encode("\n"));
-}
-
-function say(msg: string) {
-  write(encode(msg + "\n"));
-}
-
-function pause() {
-  waitKey();
-  write(encode("\n"));
-}
-
 await main(function* () {
   let { columns } = terminalSize();
   setRawMode(true);
@@ -433,7 +331,7 @@ function box(msg: string, fg: number, border: number): Op[] {
         height: grow(),
         direction: "ttb",
         padding: { left: 1 },
-        alignY: 2,
+        alignY: "center",
       },
       border: {
         color: border,