Just for the heck of it (and I also don't recommend it), a prototype approach (they've gotta be good for something):
c:\@Work\Perl\monks>perl -wMstrict -le
"use constant VALID_TAG => qr{ \A [[:alpha:]] [[:alpha:]\d]* \z }xms;
;;
sub html (*@) {
my ($tag, @strings) = @_;
;;
$tag =~ s{ \A \s+ | \s+ \z}{}xmsg;
die qq{invalid tag '$tag'} unless $tag =~ VALID_TAG;
;;
return qq{<$tag>@strings</$tag>};
}
;;
print html(p, qw(how now brown cow));
my $n = 2;
print html('h' . $n, 'the rain in spain');
print html(strike, 'now', html(b, 'is the'), 'time');
;;
print html(42, 'oops...');
"
<p>how now brown cow</p>
<h2>the rain in spain</h2>
<strike>now <b>is the</b> time</strike>
invalid tag '42' at -e line 1.
The advantage of the * prototype is that you can use a "naked" tag string. You save an underscore at the cost of a comma and an optional space; a wash, I'd say. It even does minimal validation (but something like
print html(qw(b now is the time));
is accepted with an unenlightening warning).
Update: Added strike example to show multicharacter tag.
Give a man a fish: <%-{-{-{-<
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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>
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<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
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<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
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taken to ensure that their contents do not
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