VFP (version 1.4.3)

condition_handler: Condition-Handling Without Losing Information.

Description

Function is intented to wrap expressions provided and catching all potentially useful information generated by the wrapped expression, i.e. errors, warnings, and messages.

Usage

condition_handler(expr, file = NULL)

Value

(list) with element "result", "status" (0 = no warnings, no errors), 1 = warnings were caught, 2 = errors were caught no result generated, "warnings", "errors", "messages"

Arguments

expr

(expression) for which exception handling should be provided

file

(character) string specifying a file to which all captured output shall be written

Author

Andre Schuetzenmeister

Examples

condition_handler(warning("This is a warning!"))
f <- function(expr){warning("This a warning!"); eval(expr)}
condition_handler(f(1/2))
condition_handler(stop("This is an error!"))
condition_handler(1/"a")