PPI::Token::Number::Version(3) User Contributed Perl Documentation PPI::Token::Number::Version(3)NAME
PPI::Token::Number::Version - Token class for a byte-packed number
SYNOPSIS
$n = 1.1.0;
$n = 127.0.0.1;
$n = 10_000.10_000.10_000;
$n = v1.2.3.4
INHERITANCE
PPI::Token::Number::Version
isa PPI::Token::Number
isa PPI::Token
isa PPI::Element
DESCRIPTION
The "PPI::Token::Number::Version" class is used for tokens that have multiple decimal points. In truth, these aren't treated like numbers
at all by Perl, but they look like numbers to a parser.
METHODS
base
Returns the base for the number: 256.
literal
Return the numeric value of this token.
BUGS
- Does not handle leading minus sign correctly. Should translate to a DashedWord. See <http://perlmonks.org/?node_id=574573>
-95.0.1.0 --> "-_ 00cA 00"
-96.0.1.0 --> Argument "` ^A " isn't numeric in negation (-)
SUPPORT
See the support section in the main module.
AUTHOR
Chris Dolan <cdolan@cpan.org>
COPYRIGHT
Copyright 2006 Chris Dolan.
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 v5.16.2 2011-02-25 PPI::Token::Number::Version(3)
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PPI::Token::Number(3) User Contributed Perl Documentation PPI::Token::Number(3)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 v5.18.2 2011-02-25 PPI::Token::Number(3)