From 52d3cadef74a8cbdfad5102d4d861f67b5fe443b Mon Sep 17 00:00:00 2001
From: Pragmatic Software <pragma78@gmail.com>
Date: Thu, 23 Nov 2017 14:12:43 -0800
Subject: [PATCH] Improve factoid variable expansion

---
 PBot/Factoids.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PBot/Factoids.pm b/PBot/Factoids.pm
index 2b700abe..3cf14a98 100644
--- a/PBot/Factoids.pm
+++ b/PBot/Factoids.pm
@@ -411,7 +411,7 @@ sub expand_factoid_vars {
       last if ++$depth >= 100;
       my ($a, $v) = ($1, $2);
       $v =~ s/(.):$/$1/;
-      next if $v =~ m/^_/; # underscore-prefixed vars reserved for code-factoids
+      next if $v =~ m/^[\W]/; # special character prefix skipped for shell/code-factoids/etc
       next if $v =~ m/^(nick|channel|randomnick|arglen|args|arg\[.+\]|[_0])$/i; # don't override special variables
       next if @exclude && grep { $v =~ m/^\Q$_\E$/i } @exclude;