1 // Copyright (c) 2012-2016 The go-diff authors. All rights reserved.
2 // https://github.com/sergi/go-diff
3 // See the included LICENSE file for license details.
5 // go-diff is a Go implementation of Google's Diff, Match, and Patch library
6 // Original library is Copyright (c) 2006 Google Inc.
7 // http://code.google.com/p/google-diff-match-patch/
9 // Package diffmatchpatch offers robust algorithms to perform the operations required for synchronizing plain text.
10 package diffmatchpatch
16 // DiffMatchPatch holds the configuration for diff-match-patch operations.
17 type DiffMatchPatch struct {
18 // Number of seconds to map a diff before giving up (0 for infinity).
19 DiffTimeout time.Duration
20 // Cost of an empty edit operation in terms of edit characters.
22 // How far to search for a match (0 = exact location, 1000+ = broad match). A match this many characters away from the expected location will add 1.0 to the score (0.0 is a perfect match).
24 // When deleting a large block of text (over ~64 characters), how close do the contents have to be to match the expected contents. (0.0 = perfection, 1.0 = very loose). Note that MatchThreshold controls how closely the end points of a delete need to match.
25 PatchDeleteThreshold float64
26 // Chunk size for context length.
28 // The number of bits in an int.
30 // At what point is no match declared (0.0 = perfection, 1.0 = very loose).
31 MatchThreshold float64
34 // New creates a new DiffMatchPatch object with default parameters.
35 func New() *DiffMatchPatch {
37 return &DiffMatchPatch{
38 DiffTimeout: time.Second,
42 PatchDeleteThreshold: 0.5,