Colored text diff
diff --git a/diffmatchpatch/dmp.go b/diffmatchpatch/dmp.go
index 4607452..0350978 100644
--- a/diffmatchpatch/dmp.go
+++ b/diffmatchpatch/dmp.go
@@ -1412,6 +1412,29 @@
return buff.String()
}
+// DiffPrettyText converts a []Diff into a colored text report.
+func (dmp *DiffMatchPatch) DiffPrettyText(diffs []Diff) string {
+ var buff bytes.Buffer
+ for _, diff := range diffs {
+ text := diff.Text
+
+ switch diff.Type {
+ case DiffInsert:
+ _, _ = buff.WriteString("\x1b[32m")
+ _, _ = buff.WriteString(text)
+ _, _ = buff.WriteString("\x1b[0m")
+ case DiffDelete:
+ _, _ = buff.WriteString("\x1b[31m")
+ _, _ = buff.WriteString(text)
+ _, _ = buff.WriteString("\x1b[0m")
+ case DiffEqual:
+ _, _ = buff.WriteString(text)
+ }
+ }
+
+ return buff.String()
+}
+
// DiffText1 computes and returns the source text (all equalities and deletions).
func (dmp *DiffMatchPatch) DiffText1(diffs []Diff) string {
//StringBuilder text = new StringBuilder()
diff --git a/diffmatchpatch/dmp_test.go b/diffmatchpatch/dmp_test.go
index c727e8a..ee4766b 100644
--- a/diffmatchpatch/dmp_test.go
+++ b/diffmatchpatch/dmp_test.go
@@ -746,6 +746,17 @@
dmp.DiffPrettyHtml(diffs))
}
+func Test_diffPrettyText(t *testing.T) {
+ dmp := New()
+ // Pretty print.
+ diffs := []Diff{
+ Diff{DiffEqual, "a\n"},
+ Diff{DiffDelete, "<B>b</B>"},
+ Diff{DiffInsert, "c&d"}}
+ assert.Equal(t, "a\n\x1b[31m<B>b</B>\x1b[0m\x1b[32mc&d\x1b[0m",
+ dmp.DiffPrettyText(diffs))
+}
+
func Test_diffText(t *testing.T) {
dmp := New()
// Compute the source and destination texts.
