---
name: "PPIx::QuoteLike::Token::Interpolation"
section: "3pm"
platform: "linux"
package: "perl-ppix-quotelike"
version: "0.024-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/PPIx::QuoteLike::Token::Interpolation"
---

# PPIx::QuoteLike::Token::Interpolation(3pm)

Represent an interpolation

## NAME

PPIx::QuoteLike::Token::Interpolation - Represent an interpolation

## SYNOPSIS

This class should not be instantiated by the user. See below for public methods.

## INHERITANCE

`"PPIx::QuoteLike::Token::Interpolation"` is a PPIx::QuoteLike::Token.

`"PPIx::QuoteLike::Token::Interpolation"` has no descendants.

## DESCRIPTION

This Perl class represents an interpolation into a quote-like string.

## METHODS

This class supports the following public methods in addition to those of its superclass:

### ppi

```
 my $ppi = $elem->ppi();
```

This convenience method returns the PPI::Document representing the content. This document should be considered read only. An exception will be thrown if PPI::Document can not be loaded.

Note that the content of the returned PPI::Document may not be the same as the content of the original `"PPIx::Regexp::Token::Interpolation"`. This can happen because interpolated variable names may be enclosed in curly brackets, but this does not happen in normal code. For example, in `"/${foo}bar/"`, the content of the `"PPIx::Regexp::Token::Interpolation"` object will be `'${foo}'`, but the content of the `"PPI::Document"` will be `'$foo'`.

### variables

```
 say "Interpolates $_" for $elem->variables();
```

**NOTE** that this method is discouraged, and may well be deprecated and removed. I have two problems with it. The first is that it returns variable names rather than PPI::Element objects, leaving you no idea how the variables are used. The second is that it does not properly handle things like `"${^CAPTURE[0]}"`, and it seems infeasible to make it do so. It was originally written for the benefit of Perl::Critic::Policy::Variables::ProhibitUnusedVarsStricter, but has proven inadequate to that policy's needs.

This convenience method returns all interpolated variables. Each is returned only once, and they are returned in no particular order.

## SEE ALSO

PPIx::QuoteLike::Token.

## SUPPORT

Support is by the author. Please file bug reports at \<https://github.com/trwyant/perl-PPIx-QuoteLike/issues\> or in electronic mail to the author.

## AUTHOR

Thomas R. Wyant, III *harryfmudd at comcast dot net*

## COPYRIGHT AND LICENSE

Copyright (C) 2016-2022, 2026 by Thomas R. Wyant, III

This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full text of the licenses in the files *LICENSE-Artistic* and *LICENSE-GPL*.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.