> When eqn encounters erroneous input, it normally continues > processing, presumably to try to find multiple errors in one pass. > When it eventually terminates, though, it returns 0, indicating > successful execution.
This is correct. eqn only returns non-zero for fatal errors. As far as I can see, this behaviour is true for all preprocessors of groff. A possible improvement would be to add a command line option to all programs of the groff suite which makes normal errors return as fatal. This is a rather trivial change but a lot of work if you document that also... Sorry in advance for not having time to do that. Any takers? I'm glad to assist. Werner
