Global Special Constants
_ _END_ _Indicates the logical end of your program. Any following text is ignored, but may be read via the
DATAfilehandle._ _FILE_ _Represents the filename at the point in your program where it’s used. Not interpolated into strings.
_ _LINE_ _Represents the current line number. Not interpolated into strings.
_ _PACKAGE_ _Represents the current package name at compile time, or undefined if there is no current package. Not interpolated into strings.
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