[PATCH] Add support for parsing column numbers in Visual Studio messages

[Daniel Martín]

Hi, all:

The other day I opened a compilation log from a recent version of Visual 
Studio in Emacs (Visual Studio 2019) and I noticed that Emacs doesn't 
highlight compilation errors from MSVC 2019 correctly. A simple recipe 
to reproduce the problem is:

1. emacs -Q

2. Paste the following text:

C:\tmp\sample.cpp(101,11): error C4101: 'bias0123': unreferenced local 
variable [C:\tmp\libsample.vcxproj]
C:\tmp\sample.cpp(101,21): error C4101: 'bias4567': unreferenced local 
variable [C:\tmp\libsample.vcxproj]

3. M-x compilation-minor-mode

Expected behavior: Errors are highlighted and you can navigate them 
using compilation-next-error and compilation-previous-error.

Actual behavior: Errors are not highlighted.

The problem seems to happen because the regular expression for MSVC in 
compile.el doesn't take into account column numbers. Attached is a 
proposed patch to implement support for it.

Thanks,

Daniel Mart??n

0001-Add-support-for-parsing-column-numbers-in-Visual-Stu.patch
Description: Text document