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https://github.com/postmodern/nokogiri-diff
Calculate the differences between two XML/HTML documents.
https://github.com/postmodern/nokogiri-diff
html html-diff ruby xml xml-diff
Last synced: about 1 month ago
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Calculate the differences between two XML/HTML documents.
- Host: GitHub
- URL: https://github.com/postmodern/nokogiri-diff
- Owner: postmodern
- License: mit
- Created: 2010-11-15T04:41:29.000Z (almost 14 years ago)
- Default Branch: main
- Last Pushed: 2024-01-25T07:01:24.000Z (8 months ago)
- Last Synced: 2024-07-20T09:11:08.448Z (about 2 months ago)
- Topics: html, html-diff, ruby, xml, xml-diff
- Language: Ruby
- Homepage:
- Size: 52.7 KB
- Stars: 131
- Watchers: 9
- Forks: 12
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: ChangeLog.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# nokogiri-diff
[](https://github.com/postmodern/nokogiri-diff/actions/workflows/ruby.yml)
* [Source](https://github.com/postmodern/nokogiri-diff)
* [Issues](https://github.com/postmodern/nokogiri-diff/issues)
* [Documentation](http://rubydoc.info/gems/nokogiri-diff/frames)
## Description
nokogiri-diff adds the ability to calculate the differences (added or
removed nodes) between two XML/HTML documents.
## Features
* Performs a breadth-first comparison between children nodes.
* Compares XML/HTML Elements, Attributes, Text nodes and DTD nodes.
* Allows calculating differences between documents, or just enumerating the
added or removed nodes.
## Examples
Enumerate over the differences between two HTML documents:
```ruby
require 'nokogiri/diff'
doc1 = Nokogiri::HTML('
one
two ')
doc2 = Nokogiri::HTML('
one
three
')
doc1.diff(doc2) do |change,node|
puts "#{change} #{node.to_html}".ljust(30) + node.parent.path
end
#
# one
two /
# one
/div
# - two /div
# + /div
# + three
/div
# + id="1" /div/p[1]
# one /div/p
```
Only find the added nodes:
```ruby
doc1.diff(doc2, :added => true) do |change,node|
puts node.to_html.ljust(30) + node.parent.path
end
# /div
#
three
/div
# id="1" /div/p[1]
```
Only find the removed nodes:
```ruby
doc1.diff(doc2, :removed => true) do |change,node|
puts node.to_html.ljust(30) + node.parent.path
end
# two /div
```
## Requirements
* [ruby](http://www.ruby-lang.org/) >= 2.0.0
* [tdiff](http://github.com/postmodern/tdiff) ~> 0.4
* [nokogiri](http://nokogiri.rubyforge.org/) ~> 1.5
## Install
```shell
$ gem install nokogiri-diff
```
## License
See {file:LICENSE.txt} for details.