is_r: Check if a character string contains valid R code
Description
This function takes a character string as input and attempts to parse it as R code using the
`parse` function. If the parsing is successful, the function returns TRUE, indicating that
the input string contains valid R code. If parsing fails, the function returns FALSE.
Usage
is_r(code)
Value
A logical value indicating whether the input code string contains valid R code or not.
Arguments
code
A character string containing the R code to be checked.