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NAME

perlfaq7 - General Perl Language Issues ($Revision: 1.8 $, $Date: 2002/03/26 15:48:32 $)

DESCRIPTION

This section deals with general Perl language issues that don't clearly fit into any of the other sections.

• Can I get a BNF/yacc/RE for the Perl language?
• Do I always/never have to quote my strings or use semicolons and commas?
• How do I skip some return values?
• How do I temporarily block warnings?
• What's an extension?
• Why do Perl operators have different precedence than C operators?
• How do I declare/create a structure?
• How do I create a module?
• How do I create a class?
• How can I tell if a variable is tainted?
• What's a closure?
• What is variable suicide and how can I prevent it?
• How can I pass/return a {Function, FileHandle, Array, Hash, Method, Regex}?
• Passing Variables and Functions
• Passing Filehandles
• Passing Regexes
• Passing Methods
• How do I create a static variable?
• What's the difference between dynamic and lexical (static) scoping? Between local() and my()?
• How can I access a dynamic variable while a similarly named lexical is in scope?
• What's the difference between deep and shallow binding?
• Why doesn't "my($foo) = <FILE>;" work right?
• How do I redefine a builtin function, operator, or method?
• What's the difference between calling a function as &foo and foo()?
• How do I create a switch or case statement?
• How can I catch accesses to undefined variables/functions/methods?
• Why can't a method included in this same file be found?
• How can I find out my current package?
• How can I comment out a large block of perl code?
• How do I clear a package?
• How can I use a variable as a variable name?

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