PPI::Token::Number - Token class for a number |
PPI::Token::Number - Token class for a number
$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 )
PPI::Token::Number isa PPI::Token isa PPI::Element
The PPI::Token::Number
class is used for tokens that represent numbers,
in the various types that Perl supports.
The base
method is provided by all of the ::Number subclasses.
This is 10 for decimal, 16 for hexadecimal, 2 for binary, etc.
Return the numeric value of this token.
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
- Treak v-strings as binary strings or barewords, not as ``base-256'' numbers
- Break out decimal integers into their own subclass?
- Implement literal()
See the support section in the main module.
Adam Kennedy <adamk@cpan.org>
Copyright 2001 - 2006 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.
PPI::Token::Number - Token class for a number |