Personally, I would rather group the subs by functionality and let the editor do the work localising the subs (e.g. Emacs Imenu, other editors have similar functionality).
+1 Or if it has to be alphabetical, what about just inserting them in this order? It's not like you write a new sub every couple of seconds.
But with an amount of 150 subs, there is a good chance they can be grouped in specialised (sub-)modules, reducing the set of subs to an amount that can be managed (read: edit, document, test) with less effort.
Double plus good! Plus you get the alphabetical sorting as ls' default ;)

In reply to Re^2: Meta-perl - sorting my perl subs with perl? by mbethke
in thread Meta-perl - sorting my perl subs with perl? by Syndaryl

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