I have a follow up question: how do you interpret the left side of the following line:
*{"color"} = sub {#do something};
"Go to the symbol table and look up the name color and grab the glob slot"?
This is from Mastering Perl:
Package Identifier Type Variable
+------> SCALAR - $bar
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+------> ARRAY - @bar
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+------> HASH - %bar
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Foo:: -----> bar -----+------> CODE - &bar
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+------> IO - file and dir handle
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+------> GLOB - *bar
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+------> FORMAT - format names
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+------> NAME
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+------> PACKAGE
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