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Seems to work only when the colons come in pairs:

#! perl use strict; use warnings; package ::::: { sub x { printf "(%s)\n", __PACKAGE__; } } package main; :::::::x();

Produces:

23:01 >perl 405_Obfu.pl Bareword "::::::" refers to nonexistent package at 405_Obfu.pl line 27 +. Invalid version format (non-numeric data) at 405_Obfu.pl line 17, near + "package ::::" syntax error at 405_Obfu.pl line 17, near "package :::::" Execution of 405_Obfu.pl aborted due to compilation errors. 23:02 >
“Curiouser and curiouser!” cried Alice.

Update: D’oh! (slaps forehead). Of course! :: is a synonym for main, and so is ::main and therefore ::::, likewise ::::::, etc., etc. (See Packages.) This “insight” is wrong — see reply by tobyink, below.

Athanasius <°(((><contra mundum


In reply to Re: Perl allows package names consisting entirely of colons by Athanasius
in thread Perl allows package names consisting entirely of colons by tobyink

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