1.4 KiB
epic, story, title, status
| epic | story | title | status |
|---|---|---|---|
| 11 | 11.4 | Interactive REPL | draft |
Epic 11 — CLI Tool
Goal: Command-line tool for scripting and automation, same Rust engine.
Story 11.4: Interactive REPL
As a power user, I want an interactive CalcPad session in my terminal, So that I can iteratively build up calculations with persistent variables.
Acceptance Criteria:
Given the user runs calcpad --repl
When the REPL starts
Then a prompt is displayed (e.g., > ) indicating readiness for input
And the REPL session begins with a clean variable scope
Given the user is in the REPL
When they type x = 10 and press Enter, then type x * 5 and press Enter
Then the first line outputs 10 and the second line outputs 50
And variables persist for the duration of the session
Given the user is in the REPL When they press the Up arrow key Then the previous expression is recalled into the input line And history navigation (up/down) works via rustyline or equivalent library
Given the user is in the REPL
When they type exit, quit, or press Ctrl+D
Then the REPL session ends cleanly
And the process exits with code 0
Given the user enters an invalid expression in the REPL When they press Enter Then an error message is displayed inline And the REPL continues to accept input (does not crash or exit)