GNU bug report logs - #30131
26.0.50; compile.el no longer calls compilation-parse-errors-filename-function

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From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Gary Oberbrunner <garyo <at> oberbrunner.com>
Cc: 30131 <at> debbugs.gnu.org
Subject: bug#30131: 26.0.50; compile.el no longer calls compilation-parse-errors-filename-function
Date: Mon, 15 Jan 2018 19:43:15 -0500

Gary Oberbrunner <garyo <at> oberbrunner.com> writes:

> In git rev e335e1949, back in 2001,
> compilation-parse-errors-filename-function was introduced to
> compile.el, to postprocess filenames. Somewhere in the last few
> months, emacs has stopped calling that function from
> compilation-find-file, so it no longer works. (It's still called from
> a function that now only is used for display, so it doesn't actually
> find the processed filename.)

As far as I can tell, it was never called from compilation-find-file.
Not in e335e1949 that you referenced above, not in 25.3, 25.4, nor 24.3.

In all recent Emacs versions, including latest emacs-26 and master, it
is called from compilation-get-file-structure.

(defun compilation-get-file-structure (file &optional fmt)
  [...]
    ;; If compilation-parse-errors-filename-function is
	;; defined, use it to process the filename.
	(when compilation-parse-errors-filename-function
	  (setq filename
		(funcall compilation-parse-errors-filename-function
			 filename)))

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