Error traceback with rlang

In parsermd: Formal Parser and Related Tools for R Markdown Documents

If error happens during knit_print(), the traceback shown is a smaller one, starting at knit_print() function internal.

options(rlang_backtrace_on_error_report = "full")

f <- function() g()
g <- function() h()
h <- function() stop("This is an error from knit_print !")

knit_print.custom <- function(x, ...) {
    f()
}

structure("example", class = "custom")

parsermd documentation built on Aug. 21, 2025, 5:27 p.m.