---
name: "Padre::Transform"
section: "3pm"
platform: "linux"
package: "padre"
version: "1.00+dfsg-3"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/Padre::Transform"
---

# Padre::Transform(3pm)

Padre Document Transform API

## NAME

Padre::Transform - Padre Document Transform API

## DESCRIPTION

This is the base class for the Padre transform API.

I'll document this more later...

\-- Adam K

## METHODS

### new

A default constructor for transform objects.

Takes arbitrary key/value pair parameters and returns a new object.

### scalar\_delta

```
  my $delta = $transform->scalar_delta($input_ref);
```

The `"scalar_delta"` method takes a reference to a `"SCALAR"` as the only parameter and changes the document.

If the transform class does not implement a `"scalar_delta"` itself the default implementation will pass the call through to `"scalar_scalar"` and then convert the result to a Padre::Delta object itself.

Returns a new Padre::Delta as output, or throws an exception on error.

### scalar\_scalar

```
  my $output_ref = $transform->scalar_scalar($input_ref);
```

The `"scalar_scalar"` method takes a reference to a `"SCALAR"` as the only parameter and changes the document.

Returns a new reference to a `"SCALAR"` as output, false if there is no change to the document, or throws an exception on error.

## COPYRIGHT & LICENSE

Copyright 2008-2013 The Padre development team as listed in Padre.pm.

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.