One writes methods in the same way as 'functions' (or subroutines). In fact, while you write them, there is no
difference between a method and a 'normal' sub. It's only
at *run*time when there's a small difference.
As for what you call 'attributes', they are just parameters.
All parameters are passed to a subroutine (and hence, also a
method), as a list. So, in your example, when start_html is
call, it's called with three arguments, the first
argument is the object on which the method is called, the
second argument is the string -title, the third is
the string test. It's up to the sub to take the
list and turn it into a set of key/value pairs. One common
technique is to do: my %args = @_; or some variation. I sometimes write: local %_ = @_;.
If a sub is to be called as a method, the first argument
of @_ is usually first shifted off.
Abigail
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