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cperl-perldoc


From: Alex Schroeder
Subject: cperl-perldoc
Date: Tue, 20 Nov 2001 11:56:55 +0100
User-agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/21.1 (i686-pc-linux-gnu)

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In GNU Emacs 21.1.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2001-10-31 on confusibombus
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: de_CH
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:



When calling cperl-perldoc before the man package is loaded, the man
package will be required but unusable.

Start emacs -q:

M-x man RET perlop RET
M-x cperl-mode RET
M-x cperl-perldoc RET m RET
M-x man RET perlre RET

Works!  Now try this without loading man.

Start emacs -q:

M-x cperl-mode RET
M-x cperl-perldoc RET m RET
M-x man RET perlre RET

You get this error:

man: Symbol's value as variable is void: manual-program



I assume the culprit to be this:

  (let* ((is-func (and
                   (string-match "^[a-z]+$" word)
                   (string-match (concat "^" word "\\>")
                                 (documentation-property
                                  'cperl-short-docs
                                  'variable-documentation))))
         (manual-program (if is-func "perldoc -f" "perldoc")))
    (require 'man)
    (Man-getpage-in-background word)))

In this let* form, manual-program is bound, such that loading man.el
the corresponding defvar does not bind manual-program.  After the let*
form, manual-program is no longer bound, but man is loaded.

Alex.




Recent input:
<escape> x <up> c p e r l - m o d e <return> <escape> 
x c p e r l - p e r l d o c <return> m <return> <escape> 
x m a n <return> p e r l o p <return> <escape> x r 
e p o r t - e m a c s - b u g <return>

Recent messages:
next-history-element: Beginning of history; no preceding item
Loading cperl-mode...
Loading /usr/local/libexec/emacs/21.1/i686-pc-linux-gnu/fns-21.1.1.el 
(source)...done
Loading cperl-mode...done
Invoking perldoc -f m in the background
Please wait: making up the m man page...
m man page made up
Loading tabify...done
man: Symbol's value as variable is void: manual-program
Loading emacsbug...done



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