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.\" ========================================================================
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.IX Title "PPI::Token::Number 3pm"
.TH PPI::Token::Number 3pm "2017-06-25" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
PPI::Token::Number \- Token class for a number
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 5
\&  $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 )
.Ve
.SH "INHERITANCE"
.IX Header "INHERITANCE"
.Vb 3
\&  PPI::Token::Number
\&  isa PPI::Token
\&      isa PPI::Element
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \f(CW\*(C`PPI::Token::Number\*(C'\fR class is used for tokens that represent numbers,
in the various types that Perl supports.
.SH "METHODS"
.IX Header "METHODS"
.SS "base"
.IX Subsection "base"
The \f(CW\*(C`base\*(C'\fR method is provided by all of the ::Number subclasses.
This is 10 for decimal, 16 for hexadecimal, 2 for binary, etc.
.SS "literal"
.IX Subsection "literal"
Return the numeric value of this token.
.SH "CAVEATS"
.IX Header "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 \s-1PPI:\s0
.PP
.Vb 1
\&   0_b10
.Ve
.SH "TO DO"
.IX Header "TO DO"
\&\- Treat v\-strings as binary strings or barewords, not as \*(L"base\-256\*(R"
  numbers
.PP
\&\- Break out decimal integers into their own subclass?
.PP
\&\- Implement \fIliteral()\fR
.SH "SUPPORT"
.IX Header "SUPPORT"
See the support section in the main module.
.SH "AUTHOR"
.IX Header "AUTHOR"
Adam Kennedy <adamk@cpan.org>
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2001 \- 2011 Adam Kennedy.
.PP
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
.PP
The full text of the license can be found in the
\&\s-1LICENSE\s0 file included with this module.