Skip to main content

Functional hierarchical zipper, with navigation, editing, and enumeration. See Huet

Project description

Zipper [![Build Status](https://travis-ci.org/trivio/zipper.png)](https://travis-ci.org/trivio/zipper)
======

A datastructure, first described by Huet, is used to traverse and
manipulate immutable trees. This library is a port of the zipper
implementation found in Clojure.

Usage
-----

The zipper module provides several functions for creating a Loc object which
represents the current focal point in the tree.



```
>>> import zipper
>>> top = zipper.list([1, [2, 3], 4])

>>> print top.down().right().node()
[2,3]

>>> print top.down().right().down().node()
2

>>> print top.down().right().down().replace(0).root()
[1, [0, 3], 4]

```

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

zipper-0.0.3.tar.gz (3.9 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page