🔴 rec

Record and play back your R

⚠️ the features here are almost entirely covered by asciicast, a more mature and better maintained project ⚠️

rec captures code evaluation and output, trying to preserve the R objects, console output and conditions (messages, warnings and errors) emitted during evaluation.

Quick Start

rec operates in one of two ways, either recording an expression's evaluation, or recording the top level interactive console. In both, cases, you can use the singular interface, rec(). Once you've recorded evaluation, you can also play it back!

Record your console

Recording your console is started and stopped by running rec(). While recording, you'll see a ":red_circle:" in front of your command prompt, indicating that you're in a recording session.

rec()
print(1:3)
# [1] 1 2 3
rec()  # stop recording

play()
# print(1:3)
# [1] 1 2 3

Record expression evaluation

Alternatively, you may want to capture evaluation in the background. This can be A helpful alternative to capture.output, for situations where you want to capture messages, but want to restructure the formatting or operate

recording <- rec(print(1:3))
# [1] 1 2 3

play(recording)
# print(1:3)
# [1] 1 2 3