Roscoe has asked for the wisdom of the Perl Monks concerning the following question:

The Praise section of cperl's Micro-docs brags that cperl: 
        b) Can lineup vertically "middles" of rows, like '=' in
                a  = b;
                cc = d;

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Great! Now how is this done? I tried using cperl-lineup on a marked region, but that wasn't it.

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Re: Emacs cperl-mode: how to line up middles of rows?
by samtregar (Abbot) on Feb 02, 2006 at 23:55 UTC
    Dunno, but I use perltidy to do stuff like this. I call it from emacs using: 

    (defun perltidy-region ()
    "Run perltidy on the current region."
    (interactive)
    (save-excursion
      (shell-command-on-region (point) (mark) "perltidy -q" nil t)))
(global-set-key "\M-t" `perltidy-region)

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    Then I just mark a region and hit alt-t to pretty it up. I also have a binding to allow me to perltidy the whole file.

    -sam

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Re: Emacs cperl-mode: how to line up middles of rows?
by duelafn (Parson) on Feb 03, 2006 at 02:46 UTC

    cperl-lineup is the correct function, but you have to use it carefully. The mark must be at the character that you wish to line up (hit C-space while on the first "="). Then go to the end of the region and execute cperl-lineup (C-M-| by default I believe).

    Good Day,
        Dean

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      Thanks duelafn, this is exactly what I was looking for. It works!
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Re: Emacs cperl-mode: how to line up middles of rows?
by superfrink (Curate) on Feb 03, 2006 at 04:05 UTC
    I have used the align-regex function in several buffer modes.

    Select your region. M-x align-regex . Press the '=' key. Press the 'Enter' key.
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      It's probably a useful idea to set align-indent-before-aligning t (true) before using align-regexp, otherwise it may muck up the code indentation.

      emc

      " When in doubt, use brute force." — Ken Thompson
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