Without resorting to string eval everytime you could use
a dispatch table to do this:
{
# compile each test once...
my %file_test = map { $_ => eval "sub { -$_ \$_[0] }" }
qw(r w x o R W X O e
z s f d l p S b c
t u g k T B M A C);
sub FileCheck {
my($file,$perm,$badness) = @_;
die "invalid file test" unless exists $file_test{$perm};
unless ($file_test{$perm}->($file)) {
if ($badness eq 'die') {
die "\nError (fatal) accessing $file: $!";
} elsif ($badness eq 'warn') {
warn "\nError (non-fatal) accessing $file: $!";
}
}
}
}
This also makes it relatively simple to create "new" filetests, should you want to...
If you use eval "-$perm... I would advise checking $@ to see if you had an invalid filetest requested.
update: added $_ => so it works. Much apologies. (Also s/exsits/exists/)
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|