Function deleteWordLeft

src/cli/components/editor-logic.ts:28–31

(text: string, cursor: number)

/** Delete the word immediately left of the cursor (Ctrl+W). Returns new text+cursor. */
export function deleteWordLeft(text: string, cursor: number): { text: string; cursor: number } {
  const start = wordLeft(text, cursor);
  return { text: text.slice(0, start) + text.slice(cursor), cursor: start };
}

/** Insert `s` at `cursor`. Returns new text and the cursor after the inserted text. */
export function insertAt(text: string, cursor: number, s: string): { text: string; cursor: number } {