This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: RFA: Sanitize deprecation messages (PR 84195)
On 02/08/2018 04:04 AM, Nick Clifton wrote:
Hi David,
+ /* PR 84195: Replace control characters in the message with their
+ escaped equivalents. Allow newlines if -fmessage-length has
+ been set to a non-zero value.
I'm not quite sure why we allow newlines in this case, sorry.
Because the documentation for -fmessage-length says:
Try to format error messages so that they fit on lines
of about N characters. If N is zero, then no
line-wrapping is done; each error message appears on a
single line. This is the default for all front ends.
So with a non-zero message length, multi-line messages are allowed.
At least that was my understanding of the option.
It would be helpful to mention this somehow in the documentation
of each of the #-directives (i.e., that control characters are
escaped including newlines, subject to -fmessage-length).
Unless you want to handle that as part of the patch I'll see
about submitting a docs only change for the affected bits once
these bits have been committed.
Martin
Thanks for the patch review. I will get onto fixing the points you
raised today.
Cheers
Nick