Clean raw choice strings from jsPsych CSV output — process

Strips file-path prefixes, surrounding brackets, quotes, and the file extension from the choices column as exported by jsPsych. The result is a plain comma-separated string of bare stimulus names suitable for downstream splitting and matching.

Usage

process_choices(choices, extension = ".png")

Arguments

choices: Character vector of raw choice strings, e.g. "[\"assets/stimuli/cat.png\",\"assets/stimuli/dog.png\"]".
extension: Character. File extension to strip, including the leading dot. Default: ".png".

Value

Character vector of the same length as choices, with brackets, quotes, path prefixes, and the extension removed.

Examples

raw <- c(
  "[\"assets/stimuli/cat.png\",\"assets/stimuli/dog.png\"]",
  "[\"resources/apple.png\",\"resources/banana.png\"]"
)
process_choices(raw)
#> [1] "cat,dog"      "apple,banana"
# [1] "cat,dog"   "apple,banana"