PPI::Token::Number(3)                      User Contributed Perl Documentation


NAME
       PPI::Token::Number - Token class for a number

SYNOPSIS
         $n = 1234;       # decimal integer
         $n = 0b1110011;  # binary integer
         $n = 01234;      # octal integer
         $n = 0x1234;     # hexadecimal integer
         $n = 12.34e-56;  # exponential notation ( currently not working )

INHERITANCE
         PPI::Token::Number
         isa PPI::Token
             isa PPI::Element

DESCRIPTION
       The "PPI::Token::Number" class is used for tokens that represent
       numbers, in the various types that Perl supports.

METHODS
   base
       The "base" method is provided by all of the ::Number subclasses.  This
       is 10 for decimal, 16 for hexadecimal, 2 for binary, etc.

   literal
       Return the numeric value of this token.

CAVEATS
       Compared to Perl, the number tokenizer is too liberal about allowing
       underscores anywhere.  For example, the following is a syntax error in
       Perl, but is allowed in PPI:

          0_b10

TO DO
       - Treat v-strings as binary strings or barewords, not as "base-256"
         numbers

       - Break out decimal integers into their own subclass?

       - Implement literal()

SUPPORT
       See the support section in the main module.

AUTHOR
       Adam Kennedy <adamk@cpan.org>

COPYRIGHT
       Copyright 2001 - 2011 Adam Kennedy.

       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included
       with this module.

perl v5.38.2                      2024-05-12             PPI::Token::Number(3)