Since the line between rules and subs is already blurring significantly, I want to blur it a little more. I want to write rules which can take parameters.
Consider that I am parsing HTML (a very frequent occurrence), and wish to make a Rule that matches a balanced tag from open to close. I want to use the same code many different times, but for different tags. So I really want to say something like:
rule baltag (Rule|Str $<tag>) {
\< $<tag> \s* $<options> := (.*?) \>
$<body> := (.*?)
\</ $<tag> \>
}I could then do:
$buffer ~~ / <baltag title> /;
later on to match any <title> tag in my buffer.
I'm open to alternative syntaxs, this one was just there to illustrate my point.
-- Rod Adams.
