https://github.com/documize/html-diff

Calculate difference between two HTML snippets (in Go)
https://github.com/documize/html-diff

Last synced: over 1 year ago
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Calculate difference between two HTML snippets (in Go)

• Host: GitHub
• URL: https://github.com/documize/html-diff
• Owner: documize
• License: mit
• Created: 2016-02-01T16:50:33.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2016-05-03T14:02:53.000Z (about 10 years ago)
• Last Synced: 2025-01-12T19:35:58.762Z (over 1 year ago)
• Language: HTML
• Homepage:
• Size: 516 KB
• Stars: 35
• Watchers: 8
• Forks: 17
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# html-diff

Calculate difference between two HTML snippets and return those differences as a merged HTML snippet showing the changes.

Usage:

```

	var cfg = &htmldiff.Config{

		Granularity:  5,

		InsertedSpan: []htmldiff.Attribute{{Key: "style", Val: "background-color: palegreen;"}},

		DeletedSpan:  []htmldiff.Attribute{{Key: "style", Val: "background-color: lightpink;"}},

		ReplacedSpan: []htmldiff.Attribute{{Key: "style", Val: "background-color: lightskyblue;"}},

		CleanTags:    []string{""},

	}

	res, err := cfg.HTMLdiff([]string{previousHTML, latestHTML})

	mergedHTML := res[0]

```

![see example_test.go](example_test.png)

Only deals with body HTML, so no headers, only what is within the body element.

Requires Go1.5+, with vendoring support. Vendors "github.com/mb0/diff", "golang.org/x/net/html" and "golang.org/x/net/html/atom".

Running the tests will create output files in testout/*.html.

For fuzz-testing using https://github.com/dvyukov/go-fuzz , the Fuzz() function is in fuzz.go (as at Feb'16 you need to rename the ```vendor``` directory while you fuzz, and go get the dependencies - an issue with "go/importer", see https://github.com/golang/go/issues/13756).

Pull requests welcome.