feat: export measureText and kittyModifiers to match Ink public API (#13)

packages/runtime/src/index.ts

@@ -32,4 +32,10 @@ export {
 } from "./composables/useBoxMetrics.ts";
 export { renderScreenReaderOutput, type ScreenReaderOptions } from "./paint/screen-reader.ts";
 export type { DevState, DevErrorInfo } from "./hmr.ts";
-export { kittyFlags, type KittyKeyboardOptions, type KittyFlagName } from "./io/kitty-keyboard.ts";
+export {
+  kittyFlags,
+  kittyModifiers,
+  type KittyKeyboardOptions,
+  type KittyFlagName,
+} from "./io/kitty-keyboard.ts";
+export { measureText } from "./host/text-measure.ts";

packages/runtime/src/io/kitty-keyboard.ts

@@ -12,6 +12,17 @@ export const kittyFlags = {
 
 export type KittyFlagName = keyof typeof kittyFlags;
 
+export const kittyModifiers = {
+  shift: 1,
+  alt: 2,
+  ctrl: 4,
+  super: 8,
+  hyper: 16,
+  meta: 32,
+  capsLock: 64,
+  numLock: 128,
+} as const;
+
 export type KittyKeyboardOptions = {
   mode?: "auto" | "enabled" | "disabled";
   flags?: KittyFlagName[];

packages/runtime/src/io/parse-keypress.ts

@@ -1,6 +1,8 @@
 // Ported from Ink's parse-keypress.ts
 // @see https://github.com/vadimdemedes/ink
 
+import { kittyModifiers } from "./kitty-keyboard.ts";
+
 const textDecoder = new TextDecoder();
 
 const metaKeyCodeRe = /^(?:\x1b)([a-zA-Z0-9])$/;
@@ -136,19 +138,6 @@ export interface Keypress {
   ignore?: boolean;
 }
 
-// Kitty keyboard protocol modifier bits.
-// The actual modifier value in CSI sequences is (modifiers - 1).
-const kittyModifiers = {
-  shift: 1,
-  alt: 2,
-  ctrl: 4,
-  super: 8,
-  hyper: 16,
-  meta: 32,
-  capsLock: 64,
-  numLock: 128,
-} as const;
-
 // Kitty keyboard protocol: CSI codepoint ; modifiers [: eventType] [; text-as-codepoints] u
 const kittyKeyRe = /^\x1b\[(\d+)(?:;(\d+)(?::(\d+))?(?:;([\d:]+))?)?u$/;