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From: cadence!gda!dovich@uunet.uu.net (Steven J. Dovich)
Newsgroups: comp.lang.perl
Subject: Re: perl-mode in elisp
Message-ID: <1990Mar20.171458.8213@uvaarpa.Virginia.EDU>
Date: 20 Mar 90 17:14:58 GMT
Sender: mmdf@uvaarpa.Virginia.EDU (Uvaarpa Mail System)
Reply-To: cadence!gda!dovich@uunet.uu.net
Organization: The Internet
Lines: 42

I have a perl-mode.el for GNU Emacs that I have derived from the
c-mode.el distributed with the sources. Because of its derivation,
this elisp source is copylefted.

Features:

        * use of c-mode style parameters, for C-like indentation.

        * calls both 'c-mode-hook, and 'perl-mode-hook.
          From my .emacs file:

            (setq perl-mode-hook
                  '(lambda ()
                     (goto-line 2)
                     (if (not (re-search-backward "^#!/util/bin/perl"
                                                  nil t))
                              (progn (goto-char 1)
                                     (insert "#!/util/bin/perl")
                                     (newline)
                                     (goto-char 1)
                                     ))
                     ))
          
          This hook function installs the interpreter exec directive
          into the script file, if it isn't already there. 

Caveats:

        * The '$' character is treated as an ESCAPE syntax class, to
          remove comment status from the '#' charater in array length
          expressions.

        * Regular expressions are still an open issue for this
          perl-mode (since the RE delimiters can be nearly any
          character). The good news is that perl-mode does the right
          thing most of the time.

--
Steven J. Dovich                        <uunet.uu.net!cadence!gda!dovich>
Cadence Design Systems
2 Lowell Research Center Dr.
Lowell, MA  01852-4995                  Phone: (508) 458-1900 x272