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Re: [Groff] How to disable page numbering
From: |
Anton Shepelev |
Subject: |
Re: [Groff] How to disable page numbering |
Date: |
Sun, 26 Sep 2010 15:30:31 +0400 |
Werner LEMBERG:
> Mhmm. I don't think so. Compare this to gcc's -W
> switches which are off by default too. I don't
> see an immediate need to change a behaviour which
> has been unmodified for more than 20 years.
But there is a difference compared to gcc. Missing
(undefined) macros are considered by groff not as
errors but as problems that may or may not, depend-
ing on the settings, be reported as warnings, but
that in no way cause a "compilation error", which
makes groff (with default settings) chew and swallow
almost any input without a mumbling word.
The question is, how to distinguish between a warn-
ing and an error. As I understand, every problem
that denies futher processing is considered an
error, and everything else goes as warnings. This
approach is useful for it would not interrupt pro-
cessing at the first problem and, by means of warn-
ing messages, let the user know about all the prob-
lems in the source in one pass. But why would one
want all warnings disabled I cannot imagine.
Therefore, an undefined macro is not an error from
groff's viewpoint, because the corresponding input
line can be omitted, but it is an error from the
user's viewpoint, because the result is a digression
from what is intended.
All macro packages that I have tried do enable warn-
ings if they are not explicitly enabled from the
command line.
Chris Velevitch, the original poster, seems to have
not included a macro package and all his calls to
package-specific macros were silently ignored.
Anton
P.S.: Thought I'd just let you know my viewpoint.