Re: How to uncomment Perl program in emacs?

[Michael Cadilhac <michael.cadilhac-@t-lrde.epita.fr>]

"Andy" <gngandy@gmail.com> writes:

> But I can't apply the above method to comment or uncomment Perl codes.
> Alternatively, I can comment Perl codes by first highlighting the codes
> then "M-x comment-region". But I don't know how to uncomment Perl
> codes; at least, "M-x uncomment-region" doesn't work.

  C-u M-x comment-region

  
,----[ C-h f comment-region ]
| comment-region is an interactive autoloaded Lisp function in `newcomment'.
| It is bound to M-;.
| (comment-region BEG END &optional ARG)
| 
| Comment or uncomment each line in the region.
| With just C-u prefix arg, uncomment each line in region BEG .. END.
| Numeric prefix ARG means use ARG comment characters.
| If ARG is negative, delete that many comment characters instead.
| By default, comments start at the left margin, are terminated on each line,
| even for syntax in which newline does not end the comment and blank lines
| do not get comments.  This can be changed with `comment-style'.
| 
| The strings used as comment starts are built from
| `comment-start' without trailing spaces and `comment-padding'.
| 
`----


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