On Thu, May 31, 2001 at 12:57:10PM -0400, David Gilden wrote:
[snip]
> can use the built-in function named C<readline>.....
>
> I am not sure what they mean, is the C as in command line or as in construct?
The C<text> is POD (Perl's Plain Old Document format) markup. It means
"renderers, this is code, mark it as such in some distinctive way."
> -----
>
> I am not following what /m modifier does (I am looking thru the camel
> books not no luck so far)
/m is actually pretty simple. It changes exactly what '^' and '$' match.
Normally, '^' matches the start of the string, and '$' matches the end of
the string. With /m, '^' matches just after a newline, and '$' matches just
before a newline. For example:
"foo\nbar" =~ /^bar/ # no match
"foo\nbar" =~ /^bar/m # match
"foo\nbar" =~ /foo$/ # no match
"foo\nbar" =~ /foo$/m # match
> [ Last comment on perldoc, why am I seeing the leading "=" here: ]
>
> =item Comments Inside the Regexp
This is more POD markup. If you're using perldoc -f <function> and an
older version of Perl (pre 5.6 I believe) your POD won't be rendered by
perldoc, so you see the raw POD markup. If you want it to be rendered you
can use something along the lines of:
perldoc -tf time | less
> Unrelated question:
>
> In a library file can the last line can be "1;" or should be "return 1;"
It can be either. It can be any expression that results in a true value.
Some examples:
"This is a true statement.";
42; # the meaning of life, the universe, and everything
@data = qw(foo bar blah);
subroutine_that_returns_a_true_value();
Michael
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Administrator www.shoebox.net
Programmer, System Administrator www.gallanttech.com
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