Perl 5 version 26.1 documentation

Pragmas

  • attributes
  • - get/set subroutine or variable attributes
  • autodie
  • - Replace functions with ones that succeed or die with lexical scope
  • autouse
  • - postpone load of modules until a function is used
  • base
  • - Establish an ISA relationship with base classes at compile time
  • bigint
  • - Transparent BigInteger support for Perl
  • bignum
  • - Transparent BigNumber support for Perl
  • bigrat
  • - Transparent BigNumber/BigRational support for Perl
  • blib
  • - Use MakeMaker's uninstalled version of a package
  • bytes
  • - Perl pragma to expose the individual bytes of characters
  • charnames
  • - access to Unicode character names and named character sequences; also define character names
  • constant
  • - Perl pragma to declare constants
  • diagnostics
  • - produce verbose warning diagnostics
  • encoding
  • - allows you to write your script in non-ASCII and non-UTF-8
  • feature
  • - Perl pragma to enable new features
  • fields
  • - compile-time class fields
  • filetest
  • - Perl pragma to control the filetest permission operators
  • if
  • - use a Perl module if a condition holds (also can no a module)
  • integer
  • - Perl pragma to use integer arithmetic instead of floating point
  • less
  • - perl pragma to request less of something
  • lib
  • - manipulate @INC at compile time
  • locale
  • - Perl pragma to use or avoid POSIX locales for built-in operations
  • mro
  • - Method Resolution Order
  • open
  • - perl pragma to set default PerlIO layers for input and output
  • ops
  • - Perl pragma to restrict unsafe operations when compiling
  • overload
  • - Package for overloading Perl operations
  • overloading
  • - perl pragma to lexically control overloading
  • parent
  • - Establish an ISA relationship with base classes at compile time
  • re
  • - Perl pragma to alter regular expression behaviour
  • sigtrap
  • - Perl pragma to enable simple signal handling
  • sort
  • - perl pragma to control sort() behaviour
  • strict
  • - Perl pragma to restrict unsafe constructs
  • subs
  • - Perl pragma to predeclare sub names
  • threads
  • - Perl interpreter-based threads
  • threads::shared
  • - Perl extension for sharing data structures between threads
  • utf8
  • - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in source code
  • vars
  • - Perl pragma to predeclare global variable names
  • vmsish
  • - Perl pragma to control VMS-specific language features
  • warnings
  • - Perl pragma to control optional warnings
  • warnings::register
  • - warnings import function