51 lines
1.1 KiB
Markdown
51 lines
1.1 KiB
Markdown
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go-difflib
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==========
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[](https://travis-ci.org/pmezard/go-difflib)
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[](https://godoc.org/github.com/pmezard/go-difflib/difflib)
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Go-difflib is a partial port of python 3 difflib package. Its main goal
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was to make unified and context diff available in pure Go, mostly for
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testing purposes.
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The following class and functions (and related tests) have be ported:
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* `SequenceMatcher`
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* `unified_diff()`
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* `context_diff()`
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## Installation
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```bash
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$ go get github.com/pmezard/go-difflib/difflib
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```
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### Quick Start
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Diffs are configured with Unified (or ContextDiff) structures, and can
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be output to an io.Writer or returned as a string.
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```Go
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diff := UnifiedDiff{
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A: difflib.SplitLines("foo\nbar\n"),
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B: difflib.SplitLines("foo\nbaz\n"),
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FromFile: "Original",
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ToFile: "Current",
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Context: 3,
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}
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text, _ := GetUnifiedDiffString(diff)
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fmt.Printf(text)
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```
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would output:
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```
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--- Original
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+++ Current
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@@ -1,3 +1,3 @@
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foo
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-bar
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+baz
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```
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