condition_handler: Condition-Handling Without Losing Information.

In VFP: Variance Function Program

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)

Arguments

expr	(expression) for which exception handling should be provided
file	(character) string specifying a file to which all captured output shall be written

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"

Author(s)

Andre Schuetzenmeister [e-mail]

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")

VFP documentation built on April 13, 2025, 5:12 p.m.