How do I use compilation mode?

How do I use compilation mode?

[Alan Mackenzie]

Hi, Emacs.

I'd like to use compilation mode.  In particular, I have a log file and
extracted lines like this into a separate buffer from it with grep:

cc-mode.acm 47446:[^2012-01-26: mackenzie]: Enable ">>" as double template ender.

I'd like to go to line 47446 in the log file by pressing CR on that line.

The instructions on how to do this are not optimal.  I've basically
tried pushing elements onto the documented variables
compilation-error-regexp-alist\\(-alist\\)? in the form that they're in
those lists for other modes.

In particular, I pushed 'acm onto compilation-error-regexp-alist and

((acm "\\(cc-mode.acm\\) \\([0-9]+\\):\\[\\^[0-9]+-[0-9]+-[0-9?]+:[^]]*\\]:"
    1 2 nil))

onto compilation-error-regexp-alist.  On typing CR in the pertinent
buffer, I get the ironic error message "No error here".

I've tried edebugging through compile.el, and just got lost in the
complexity.

Would somebody please help me out here.

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: How do I use compilation mode?

[Óscar Fuentes]

Hello Alan.

Alan Mackenzie <acm@muc.de> writes:

> In particular, I pushed 'acm onto compilation-error-regexp-alist and
>
> ((acm "\\(cc-mode.acm\\) \\([0-9]+\\):\\[\\^[0-9]+-[0-9]+-[0-9?]+:[^]]*\\]:"
>     1 2 nil))
>
> onto compilation-error-regexp-alist.

That symbol `acm' there is wrong. The solution is simpler. For instance,
this is what I use for matching the diagnostics reported by my compiler:

(add-to-list 'compilation-error-regexp-alist
	     '("^\\(?:..\\[[ 0-9]+\\]+ \\)*\\([a-zA-Z0-9:\\/\\.-]+\.lp0\\)\(\\([0-9]+\\)\)"
	       1 2 nil))

Re: How do I use compilation mode?

[Alan Mackenzie]

Hello, Óscar/

On Sun, Feb 05, 2012 at 04:20:30PM +0100, Óscar Fuentes wrote:
> Hello Alan.

> Alan Mackenzie <acm@muc.de> writes:

> > In particular, I pushed 'acm onto compilation-error-regexp-alist and

> > ((acm "\\(cc-mode.acm\\) \\([0-9]+\\):\\[\\^[0-9]+-[0-9]+-[0-9?]+:[^]]*\\]:"
> >     1 2 nil))

> > onto compilation-error-regexp-alist.

> That symbol `acm' there is wrong. The solution is simpler. For instance,
> this is what I use for matching the diagnostics reported by my compiler:

> (add-to-list 'compilation-error-regexp-alist
> 	     '("^\\(?:..\\[[ 0-9]+\\]+ \\)*\\([a-zA-Z0-9:\\/\\.-]+\.lp0\\)\(\\([0-9]+\\)\)"
> 	       1 2 nil))

That worked like a dream.  Thanks!

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: How do I use compilation mode?

[Stefan Monnier]

> I'd like to use compilation mode.  In particular, I have a log file and
> extracted lines like this into a separate buffer from it with grep:

> cc-mode.acm 47446:[^2012-01-26: mackenzie]: Enable ">>" as double template ender.

BTW, a simpler solution: add a colon between "cc-mode.acm" and "47446"
and you'll be using a standard format recognized by compilation-mode
without any extra work.


        Stefan