On 25/07/2014, 6:52 AM, marcel Austenfeld wrote:
>
> Hello,
> i'm searching for a way to realize a conditional breakpoint.
> setBreakpoint is a simple wrapper for the trace function. What i wan't to
> do
> is similar to the trace function
> described here:
> [1]http://www.stats.uwo.ca/faculty/murdoch/software/debuggingR/debug.shtml
> "> trace(fun, quote(if (x > 10) browser()))"
> How can i do this with the setBreakpoint function or are there any other
> alternatives to realize a conditional breakpoint?
> I use the setBreakpoint function in combination with findLineNum for a
> simple R debugging GUI.
> Thank in advance for any help
The conditional in the trace example is the tracer argument.
setBreakpoint also has a tracer argument; have you tried that? E.g.
setBreakpoint("foo.R#22", tracer=quote(if (x > 10) browser()))
Duncan Murdoch
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