Re: error messages with ranges

[Richard Stallman]

    Is :: starting a new line? If so, I think emacs does not parse more
    than one line of GCC's output at a time. Would that change with this
    proposal?

Parsing either of these formats will require specialized code for sure.

At the risk of complicating the decision, another idea just occurred to me:
output a separate error message for each argument, like this:

    foo.c:47:5-10: First argument of erroneous operation
    foo.c:47:14-250: Second argument of erroneous operation

The IDE could recognize these two error messages
and process them specially however it wishes.