You can then throw this message with stop() or rlang::abort().

format_error(message, .envir = parent.frame())

format_warning(message, .envir = parent.frame())

format_message(message, .envir = parent.frame())

Arguments

message

It is formatted via a call to cli_bullets().

.envir

Environment to evaluate the glue expressions in.

Details

The messages can use inline styling, pluralization and glue substitutions.

Examples

if (FALSE) { n <- "boo" stop(format_error(c( "{.var n} must be a numeric vector", "x" = "You've supplied a {.cls {class(n)}} vector." ))) len <- 26 idx <- 100 stop(format_error(c( "Must index an existing element:", "i" = "There {?is/are} {len} element{?s}.", "x" = "You've tried to subset element {idx}." ))) }