---
name: "PPI::Token::Number"
section: "3pm"
platform: "linux"
package: "perl-ppi"
version: "1.291-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/PPI::Token::Number"
---

# PPI::Token::Number(3pm)

Token class for a number

## 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.