History

Josh Baker 26d0083faf Update vendoring to use golang/dep commit a1a37d335a8e89ac89d85c00c8585d3fc02e064a Author: Josh Baker <joshbaker77@gmail.com> Date: Thu Oct 5 07:36:54 2017 -0700 use symlink instead of copy commit 96399c2c92620f633611c778e5473200bfd48d41 Author: Josh Baker <joshbaker77@gmail.com> Date: Thu Oct 5 07:19:26 2017 -0700 use dep for vendoring		2017-10-05 07:40:19 -07:00
..
difflib	index optimizations	2017-08-10 17:32:40 -07:00
.travis.yml	Update vendoring to use golang/dep	2017-10-05 07:40:19 -07:00
LICENSE	Update vendoring to use golang/dep	2017-10-05 07:40:19 -07:00
README.md	Update vendoring to use golang/dep	2017-10-05 07:40:19 -07:00

README.md

go-difflib

Go-difflib is a partial port of python 3 difflib package. Its main goal was to make unified and context diff available in pure Go, mostly for testing purposes.

The following class and functions (and related tests) have be ported:

SequenceMatcher
unified_diff()
context_diff()

Installation

$ go get github.com/pmezard/go-difflib/difflib

Quick Start

Diffs are configured with Unified (or ContextDiff) structures, and can be output to an io.Writer or returned as a string.

diff := UnifiedDiff{
    A:        difflib.SplitLines("foo\nbar\n"),
    B:        difflib.SplitLines("foo\nbaz\n"),
    FromFile: "Original",
    ToFile:   "Current",
    Context:  3,
}
text, _ := GetUnifiedDiffString(diff)
fmt.Printf(text)

would output:

--- Original
+++ Current
@@ -1,3 +1,3 @@
 foo
-bar
+baz