https://github.com/iminside/diffing

Gem for calculating two strings difference
https://github.com/iminside/diffing

Last synced: 1 day ago
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Gem for calculating two strings difference

• Host: GitHub
• URL: https://github.com/iminside/diffing
• Owner: iminside
• License: mit
• Created: 2015-08-03T20:24:07.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2020-09-18T12:10:09.000Z (over 4 years ago)
• Last Synced: 2024-12-20T11:15:36.336Z (7 days ago)
• Language: Ruby
• Homepage:
• Size: 25.4 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# Diffing

[![Build Status](https://travis-ci.org/denis-churbanov/Diffing.svg?branch=master)](https://travis-ci.org/denis-churbanov/Diffing)

## Installation

```

sudo gem install diffing

```

## Usage

```ruby

require 'diffing'

from = "Hello! I am string for diffing test"

to   = "Hi! I am two string for diffing"

```

#### By chars

```ruby

diff = Diffing.by_chars( from, to )

diff.as_ascii

# => H{`ello`>>`i`}! I am{+` two`} string for diffing{-` test`}

diff.as_html

# => Helloi! I am two string for diffing test

```

#### By words

```ruby

diff = Diffing.by_words( from, to )

diff.as_ascii

# => {`Hello!`>>`Hi!`} I am{+` two`} string for diffing{-` test`}

diff.as_html

# => Hello!Hi! I am two string for diffing test

```

#### By lines

```ruby

diff = Diffing.by_lines( from, to )

diff.as_ascii

# => {`Hello! I am string for diffing test`>>`Hi! I am two string for diffing`}

diff.as_html

# => Hello! I am string for diffing testHi! I am two string for diffing

```

## Custom format

```ruby

module CustomFormat

  class << self

    def source( value )

      value

    end

    def insert( value )

      "(++#{ value })"

    end

    def remove( value )

      "(--#{ value })"

    end

    def change( from, to )

      "(#{ from } => #{ to })"

    end

  end

end

Diffing.by_chars( from, to ).format( CustomFormat )

# => H(ello => i)! I am(++ two) string for diffing(-- test)

Diffing.by_words( from, to ).format( CustomFormat )

# => (Hello! => Hi!) I am(++ two) string for diffing(-- test)

Diffing.by_lines( from, to ).format( CustomFormat )

# => (Hello! I am string for diffing test => Hi! I am two string for diffing)

```

## Custom use separated parts

```ruby

Diffing.by_words( from, to ).parts.map { |part|

  

  result = ''

  result << "" if part.source?

  result << "" if part.insert?

  result << "" if part.remove?

  result

  

}.join 

# => 

```

## Custom pattern of parts

```ruby

Diffing::Diff.new( from, to, /.{,3}\s?/ ).as_ascii

# => {`Hello! `>>`Hi! `}I a{`m string `>>`m two string `}for diffin{`g test`>>`g`}

```

## Copyright

Copyright © 2015 Denis Churbanov