How to use Tokenize method of diff Package

Best Got code snippet using diff.Tokenize

lexer_test.go

Source:lexer_test.go Github

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...7 "testing"8 "github.com/​google/​go-cmp/​cmp"9 "github.com/​sam8helloworld/​json-go/​token"10)11func TestSuccessStringTokenize(t *testing.T) {12 f, err := os.Open("./​testdata/​string_only.json")13 if err != nil {14 fmt.Println("error")15 }16 defer f.Close()17 /​/​ 一気に全部読み取り18 b, err := ioutil.ReadAll(f)19 if err != nil {20 fmt.Println("error")21 }22 sut := NewLexer(string(b))23 got, err := sut.Execute()24 if err != nil {25 t.Fatalf("failed to execute lexer %#v", err)26 }27 want := &[]token.Token{28 token.LeftBraceToken{},29 token.NewStringToken("string"),30 token.ColonToken{},31 token.NewStringToken("hogehoge"),32 token.RightBraceToken{},33 }34 if diff := cmp.Diff(got, want, cmp.AllowUnexported(token.StringToken{})); diff != "" {35 t.Fatalf("got differs: (-got +want)\n%s", diff)36 }37}38func TestSuccessStringTokenizeEscape(t *testing.T) {39 f, err := os.Open("./​testdata/​escape_string_only.json")40 if err != nil {41 fmt.Println("error")42 }43 defer f.Close()44 /​/​ 一気に全部読み取り45 b, err := ioutil.ReadAll(f)46 if err != nil {47 fmt.Println("error")48 }49 sut := NewLexer(string(b))50 got, err := sut.Execute()51 if err != nil {52 t.Fatalf("failed to execute lexer %#v", err)53 }54 want := &[]token.Token{55 token.LeftBraceToken{},56 token.NewStringToken("escape_double_quote"),57 token.ColonToken{},58 token.NewStringToken(`"ダブルクォーテーション"`),59 token.CommaToken{},60 token.NewStringToken("escape_backslash"),61 token.ColonToken{},62 token.NewStringToken(`\バックスラッシュ`),63 token.CommaToken{},64 token.NewStringToken("escape_slash"),65 token.ColonToken{},66 token.NewStringToken(`\/​スラッシュ`),67 token.CommaToken{},68 token.NewStringToken("escape_utf_16_text"),69 token.ColonToken{},70 token.NewStringToken("あいうabc"),71 token.CommaToken{},72 token.NewStringToken("escape_utf_16_emoji"),73 token.ColonToken{},74 token.NewStringToken("😄😇👺"),75 token.CommaToken{},76 token.NewStringToken("escape_special_chars"),77 token.ColonToken{},78 token.NewStringToken(` \b \f \n \r \t \/​ " `),79 token.RightBraceToken{},80 }81 if diff := cmp.Diff(got, want, cmp.AllowUnexported(token.StringToken{})); diff != "" {82 t.Fatalf("got differs: (-got +want)\n%s", diff)83 }84}85func TestFailedStringTokenize(t *testing.T) {86 f, err := os.Open("./​testdata/​string_only_fragile.json")87 if err != nil {88 fmt.Println("error")89 }90 defer f.Close()91 /​/​ 一気に全部読み取り92 b, err := ioutil.ReadAll(f)93 if err != nil {94 fmt.Println("error")95 }96 sut := NewLexer(string(b))97 got, err := sut.Execute()98 if got != nil {99 t.Errorf("want error %v, but got result %v", ErrStringTokenize, got)100 }101 if !errors.Is(err, ErrStringTokenize) {102 t.Fatalf("want ErrStringTokenize, but got %v", err)103 }104}105func TestSuccessBoolTokenize(t *testing.T) {106 f, err := os.Open("./​testdata/​bool_only.json")107 if err != nil {108 fmt.Println("error")109 }110 defer f.Close()111 /​/​ 一気に全部読み取り112 b, err := ioutil.ReadAll(f)113 if err != nil {114 fmt.Println("error")115 }116 sut := NewLexer(string(b))117 got, err := sut.Execute()118 if err != nil {119 t.Fatalf("failed to execute lexer %#v", err)120 }121 want := &[]token.Token{122 token.LeftBraceToken{},123 token.NewStringToken("boolTrue"),124 token.ColonToken{},125 token.TrueToken{},126 token.CommaToken{},127 token.NewStringToken("boolFalse"),128 token.ColonToken{},129 token.FalseToken{},130 token.RightBraceToken{},131 }132 if diff := cmp.Diff(got, want, cmp.AllowUnexported(token.StringToken{})); diff != "" {133 t.Fatalf("got differs: (-got +want)\n%s", diff)134 }135}136func TestFailedBoolTokenize(t *testing.T) {137 f, err := os.Open("./​testdata/​bool_only_fragile.json")138 if err != nil {139 fmt.Println("error")140 }141 defer f.Close()142 /​/​ 一気に全部読み取り143 b, err := ioutil.ReadAll(f)144 if err != nil {145 fmt.Println("error")146 }147 sut := NewLexer(string(b))148 got, err := sut.Execute()149 if got != nil {150 t.Errorf("want error %v, but got result %v", ErrBoolTokenize, got)151 }152 if !errors.Is(err, ErrBoolTokenize) {153 t.Fatalf("want ErrBoolTokenize, but got %v", err)154 }155}156func TestSuccessNullTokenize(t *testing.T) {157 f, err := os.Open("./​testdata/​null_only.json")158 if err != nil {159 fmt.Println("error")160 }161 defer f.Close()162 /​/​ 一気に全部読み取り163 b, err := ioutil.ReadAll(f)164 if err != nil {165 fmt.Println("error")166 }167 sut := NewLexer(string(b))168 got, err := sut.Execute()169 if err != nil {170 t.Fatalf("failed to execute lexer %#v", err)171 }172 want := &[]token.Token{173 token.LeftBraceToken{},174 token.NewStringToken("null"),175 token.ColonToken{},176 token.NullToken{},177 token.RightBraceToken{},178 }179 if diff := cmp.Diff(got, want, cmp.AllowUnexported(token.StringToken{})); diff != "" {180 t.Fatalf("got differs: (-got +want)\n%s", diff)181 }182}183func TestFailedNullTokenize(t *testing.T) {184 f, err := os.Open("./​testdata/​null_only_fragile.json")185 if err != nil {186 fmt.Println("error")187 }188 defer f.Close()189 /​/​ 一気に全部読み取り190 b, err := ioutil.ReadAll(f)191 if err != nil {192 fmt.Println("error")193 }194 sut := NewLexer(string(b))195 got, err := sut.Execute()196 if got != nil {197 t.Errorf("want error %v, but got result %v", ErrNullTokenize, got)198 }199 if !errors.Is(err, ErrNullTokenize) {200 t.Fatalf("want ErrNullTokenize, but got %v", err)201 }202}203func TestSuccessNumberTokenize(t *testing.T) {204 f, err := os.Open("./​testdata/​number_only.json")205 if err != nil {206 fmt.Println("error")207 }208 defer f.Close()209 /​/​ 一気に全部読み取り210 b, err := ioutil.ReadAll(f)211 if err != nil {212 fmt.Println("error")213 }214 sut := NewLexer(string(b))215 got, err := sut.Execute()216 if err != nil {217 t.Fatalf("failed to execute lexer %#v", err)...

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format_test.go

Source:format_test.go Github

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...20`)21}22func TestFormat(t *testing.T) {23 g := setup(t)24 ts := diff.TokenizeText(25 g.Context(),26 strings.ReplaceAll("a b c d f g h h j q z", " ", "\n"),27 strings.ReplaceAll("a b c d e f g i j k r x y z", " ", "\n"),28 )29 df := diff.Format(ts, diff.ThemeNone)30 g.Eq(df, ""+31 "01 01 a\n"+32 "02 02 b\n"+33 "03 03 c\n"+34 "04 04 d\n"+35 " 05 + e\n"+36 "05 06 f\n"+37 "06 07 g\n"+38 "07 - h\n"+39 "08 - h\n"+40 " 08 + i\n"+41 "09 09 j\n"+42 "10 - q\n"+43 " 10 + k\n"+44 " 11 + r\n"+45 " 12 + x\n"+46 " 13 + y\n"+47 "11 14 z\n"+48 "")49}50func TestDisconnectedChunks(t *testing.T) {51 g := setup(t)52 ts := diff.TokenizeText(53 g.Context(),54 strings.ReplaceAll("a b c d f g h i j k l m n", " ", "\n"),55 strings.ReplaceAll("x b c d f g h i x k l m n", " ", "\n"),56 )57 lines := diff.ParseTokenLines(ts)58 lines = diff.Narrow(1, lines)59 ts = diff.SpreadTokenLines(lines)60 df := diff.Format(ts, diff.ThemeNone)61 g.Eq(df, ""+62 "@@ diff chunk @@\n"+63 "01 - a\n"+64 " 01 + x\n"+65 "02 02 b\n"+66 "\n"+67 "@@ diff chunk @@\n"+68 "08 08 i\n"+69 "09 - j\n"+70 " 09 + x\n"+71 "10 10 k\n"+72 "\n"+73 "")74}75func TestChunks0(t *testing.T) {76 g := setup(t)77 ts := diff.TokenizeText(78 g.Context(),79 strings.ReplaceAll("a b c", " ", "\n"),80 strings.ReplaceAll("a x c", " ", "\n"),81 )82 lines := diff.ParseTokenLines(ts)83 lines = diff.Narrow(-1, lines)84 ts = diff.SpreadTokenLines(lines)85 df := diff.Format(ts, diff.ThemeNone)86 g.Eq(df, ""+87 "@@ diff chunk @@\n"+88 "2 - b\n"+89 " 2 + x\n"+90 "\n"+91 "")92}93func TestNoDifference(t *testing.T) {94 g := setup(t)95 ts := diff.TokenizeText(g.Context(), "a", "b")96 df := diff.Format(ts, diff.ThemeNone)97 g.Eq(df, ""+98 "1 - a\n"+99 " 1 + b\n"+100 "")101}102func TestTwoLines(t *testing.T) {103 g := setup(t)104 format := func(ts []*diff.Token) string {105 out := ""106 for _, t := range ts {107 txt := strings.TrimSpace(strings.ReplaceAll(t.Literal, "", " "))108 switch t.Type {109 case diff.DelWords:110 out += "-" + txt111 case diff.AddWords:112 out += "+" + txt113 default:114 out += "=" + txt115 }116 }117 return out118 }119 check := func(x, y, ex, ey string) {120 t.Helper()121 tx, ty := diff.TokenizeLine(g.Context(),122 strings.ReplaceAll(x, " ", ""),123 strings.ReplaceAll(y, " ", ""))124 dx, dy := format(tx), format(ty)125 if dx != ex || dy != ey {126 t.Error("\n", dx, "\n", dy, "\n!=\n", ex, "\n", ey)127 }128 }129 check(130 " a b c d f g h i j k l m n",131 " x x b c d f g h i x k l m n",132 "-a=b c d f g h i-j=k l m n",133 "+x x=b c d f g h i+x=k l m n",134 )135 check(136 " 4 9 0 4 5 0 8 8 5 3",137 " 4 9 0 5 4 3 7 5 2",138 "=4 9 0 4-5 0 8 8 5=3",139 "=4 9 0+5=4 3+7 5 2",140 )141 check(142 " 4 9 0 4 5 0 8",143 " 4 9 0 5 4 3 7",144 "=4 9 0-4=5-0 8",145 "=4 9 0 5+4 3 7",146 )147}148func TestColor(t *testing.T) {149 g := setup(t)150 out := diff.Diff("abc", "axc")151 g.Eq(gop.VisualizeANSI(out), `<45><30>@@ diff chunk @@<39><49>152<31>1 -<39> a<31>b<39>c153<32> 1 +<39> a<32>x<39>c154`)155}156func TestCustomSplit(t *testing.T) {157 g := setup(t)158 ctx := context.WithValue(g.Context(), diff.SplitKey, split)159 g.Eq(diff.TokenizeLine(ctx, "abc", "abc"))160}...

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format.go

Source:format.go Github

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...29/​/​ Diff x and y into a human readable string.30func Diff(x, y string) string {31 ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)32 defer cancel()33 return Format(Tokenize(ctx, x, y), ThemeDefault)34}35/​/​ Tokenize x and y into diff tokens with diff words and narrow chunks.36func Tokenize(ctx context.Context, x, y string) []*Token {37 ts := TokenizeText(ctx, x, y)38 lines := ParseTokenLines(ts)39 lines = Narrow(1, lines)40 Words(ctx, lines)41 return SpreadTokenLines(lines)42}43/​/​ Format tokens into a human readable string44func Format(ts []*Token, theme Theme) string {45 out := ""46 for _, t := range ts {47 s := t.Literal48 out += gop.Stylize(s, theme(t.Type))49 }50 return out51}52/​/​ Narrow the context around each diff section to n lines.53func Narrow(n int, lines []*TokenLine) []*TokenLine {54 if n < 0 {55 n = 056 }57 keep := map[int]bool{}58 for i, l := range lines {59 switch l.Type {60 case AddSymbol, DelSymbol:61 for j := max(i-n, 0); j <= i+n && j < len(lines); j++ {62 keep[j] = true63 }64 }65 }66 out := []*TokenLine{}67 for i, l := range lines {68 if !keep[i] {69 continue70 }71 if _, has := keep[i-1]; !has {72 ts := []*Token{{ChunkStart, "@@ diff chunk @@"}, {Newline, "\n"}}73 out = append(out, &TokenLine{ChunkStart, ts})74 }75 out = append(out, l)76 if _, has := keep[i+1]; !has {77 ts := []*Token{{ChunkEnd, ""}, {Newline, "\n"}}78 out = append(out, &TokenLine{ChunkEnd, ts})79 }80 }81 return out82}83/​/​ Words diff84func Words(ctx context.Context, lines []*TokenLine) {85 delLines := []*TokenLine{}86 addLines := []*TokenLine{}87 df := func() {88 if len(delLines) == 0 || len(delLines) != len(addLines) {89 return90 }91 for i := 0; i < len(delLines); i++ {92 d := delLines[i]93 a := addLines[i]94 dts, ats := TokenizeLine(ctx, d.Tokens[2].Literal, a.Tokens[2].Literal)95 d.Tokens = append(d.Tokens[0:2], append(dts, d.Tokens[3:]...)...)96 a.Tokens = append(a.Tokens[0:2], append(ats, a.Tokens[3:]...)...)97 }98 delLines = []*TokenLine{}99 addLines = []*TokenLine{}100 }101 for _, l := range lines {102 switch l.Type {103 case DelSymbol:104 delLines = append(delLines, l)105 case AddSymbol:106 addLines = append(addLines, l)107 default:108 df()...

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Tokenize

Using AI Code Generation

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1import (2func main() {3 dmp := diffmatchpatch.New()4 diffs := dmp.DiffMain("Hello World", "Hello Gophers", false)5 fmt.Println(diffs)6}7[{1 Hello } {- World} {1 Gophers}]8import (9func main() {10 dmp := diffmatchpatch.New()11 diffs := dmp.DiffMain("Hello World", "Hello Gophers", false)12 fmt.Println(dmp.DiffPrettyText(diffs))13}14import (15func main() {16 dmp := diffmatchpatch.New()17 diffs := dmp.DiffMain("Hello World", "Hello Gophers", false)18 fmt.Println(dmp.DiffPrettyHtml(diffs))19}20import (21func main() {22 dmp := diffmatchpatch.New()23 diffs := dmp.DiffMain("Hello World", "Hello Gophers", false)24 fmt.Println(dmp.DiffText1(diffs))25}26import (27func main() {28 dmp := diffmatchpatch.New()29 diffs := dmp.DiffMain("Hello World", "Hello Gophers", false)30 fmt.Println(dmp.DiffText2(diffs))31}32import (33func main() {34 dmp := diffmatchpatch.New()35 diffs := dmp.DiffMain("Hello World

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Tokenize

Using AI Code Generation

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1import (2func main() {3 dmp := diffmatchpatch.New()4 diffs := dmp.DiffMain(a, b, false)5 fmt.Println(dmp.DiffPrettyText(diffs))6}

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Tokenize

Using AI Code Generation

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1import (2func main() {3 diff := diffmatchpatch.New()4 d := diff.DiffMain("Hello World", "Hello Golang", false)5 fmt.Println(diff.DiffPrettyText(d))6 fmt.Println(diff.DiffPrettyHtml(d))7 fmt.Println(diff.DiffToDelta(d))8 fmt.Println(diff.DiffFromDelta("Hello World", diff.DiffToDelta(d)))9 fmt.Println(diff.DiffToText(d))10 fmt.Println(diff.DiffFromText("Hello World", diff.DiffToText(d)))11 fmt.Println(diff.DiffLinesToChars("Hello World", "Hello Golang"))12 fmt.Println(diff.DiffCharsToLines(diff.DiffLinesToChars("Hello World", "Hello Golang"), "Hello World", "Hello Golang"))13 fmt.Println(diff.DiffCommonPrefix("Hello World", "Hello Golang"))14 fmt.Println(diff.DiffCommonSuffix("Hello World", "Hello Golang"))15 fmt.Println(diff.DiffCommonOverlap("Hello World", "Hello Golang"))16 fmt.Println(diff.DiffHalfMatch("Hello World", "Hello Golang"))17 fmt.Println(diff.DiffLinesToChars("Hello World", "Hello Golang"))18 fmt.Println(diff.DiffCharsToLines(diff.DiffLinesToChars("Hello World", "Hello Golang"), "Hello World", "Hello Golang"))19 fmt.Println(diff.DiffWordsToChars("Hello World", "Hello Golang"))20 fmt.Println(diff.DiffCharsToWords(diff.DiffWordsToChars("Hello World", "Hello Golang"), "Hello World", "Hello Golang"))21 fmt.Println(diff.DiffCleanupMerge(d))22 fmt.Println(diff.DiffCleanupSemantic(d))23 fmt.Println(diff.DiffCleanupSemanticLossless(d))24 fmt.Println(diff.DiffCleanupEfficiency(d))25 fmt.Println(diff.DiffXIndex(d, 2))26 fmt.Println(diff.DiffLevenshtein(d))27 fmt.Println(diff.DiffBisect("Hello World", "Hello Golang", 1))28 fmt.Println(diff.DiffBisectSplit("Hello World", "Hello Golang", 1))29 fmt.Println(diff.DiffMain("Hello World", "Hello Golang", true))30 fmt.Println(diff.DiffMainRunes([]rune("Hello World"), []rune("Hello Golang"), true))31 fmt.Println(diff.DiffMainRunes([]rune("Hello World"), []rune("Hello G

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Tokenize

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1import (2func main() {3 dmp := diffmatchpatch.New()4 d := dmp.New()5 dmp.DiffCleanupSemantic(d)6 dmp.DiffCleanupEfficiency(d)7 fmt.Println(dmp.DiffPrettyText(d))8}9Example 2: DMP.DiffPrettyText()10import (11func main() {12 dmp := diffmatchpatch.New()13 d := dmp.New()14 dmp.DiffCleanupSemantic(d)15 dmp.DiffCleanupEfficiency(d)16 fmt.Println(dmp.DiffPrettyText(d))17}18Example 3: DMP.DiffToDelta()19import (20func main() {21 dmp := diffmatchpatch.New()22 d := dmp.New()23 dmp.DiffCleanupSemantic(d)24 dmp.DiffCleanupEfficiency(d)25 fmt.Println(dmp.DiffToDelta(d))26}27Example 4: DMP.DiffFromDelta()28import (29func main() {30 dmp := diffmatchpatch.New()31 d := dmp.New()32 dmp.DiffCleanupSemantic(d)33 dmp.DiffCleanupEfficiency(d)34 fmt.Println(dmp.DiffFromDelta("Hello World", "=4"))35}36Example 5: DMP.DiffXIndex()37import (38func main() {39 dmp := diffmatchpatch.New()40 d := dmp.New()41 dmp.DiffCleanupSemantic(d)

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Tokenize

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1import (2func main() {3 dmp := diffmatchpatch.New()4 diff := dmp.DiffMain("Hello World!", "Hello Go World!", false)5 fmt.Println(diff)6}7[{1 Hello } {0 World!} {- } {1 Go } {0 World!}]8import (9func main() {10 dmp := diffmatchpatch.New()11 diff := dmp.DiffMain("Hello World!", "Hello Go World!", false)12 fmt.Println(diff)13}14[{1 Hello } {0 World!} {- } {1 Go } {0 World!}]15import (16func main() {17 dmp := diffmatchpatch.New()18 diff := dmp.DiffMain("Hello World!", "Hello Go World!", false)19 fmt.Println(diff)20}21[{1 Hello } {0 World!} {- } {1 Go } {0 World!}]22import (23func main() {24 dmp := diffmatchpatch.New()25 diff := dmp.DiffMain("Hello World!", "Hello Go World!", false)26 fmt.Println(diff)27}28[{1 Hello } {0 World!} {- } {1 Go } {0 World!}]29import (30func main() {31 dmp := diffmatchpatch.New()32 diff := dmp.DiffMain("Hello World!", "Hello Go World!", false)33 fmt.Println(diff)34}35[{1 Hello } {0 World!} {- } {1 Go } {0 World!}]

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Tokenize

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1import (2func main() {3 dmp := diffmatchpatch.New()4 diffs := dmp.DiffMain(a, b, false)5 fmt.Println(diffs)6}7[{1 Hello world.} {- } {1 !}]8[{1 Hello world.} {- } {1 !}]9import (10func main() {11 dmp := diffmatchpatch.New()12 diffs := dmp.DiffMain(a, b, false)13 for _, diff := range diffs {14 if diff.Type == 1 {15 fmt.Println(diff.Text)16 }17 }18}19import (20func main() {21 dmp := diffmatchpatch.New()22 diffs := dmp.DiffMain(a, b, false)23 for _, diff := range diffs {24 if diff.Type == -1 {25 fmt.Println(diff.Text)26 }27 }28}29import (30func main() {31 dmp := diffmatchpatch.New()

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Tokenize

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1import (2func main() {3dmp := diffmatchpatch.New()4diff := dmp.DiffMain(a, b, false)5diffs := dmp.DiffCleanupSemantic(diff)6fmt.Println(dmp.DiffPrettyText(diffs))7}8import (9func main() {10dmp := diffmatchpatch.New()11diff := dmp.DiffMain(a, b, false)12diffs := dmp.DiffCleanupSemantic(diff)13fmt.Println(dmp.DiffPrettyText(diffs))14}15import (16func main() {17dmp := diffmatchpatch.New()18diff := dmp.DiffMain(a, b, false)19diffs := dmp.DiffCleanupSemantic(diff)20fmt.Println(dmp.DiffPrettyText(diffs))21}22import (23func main() {24dmp := diffmatchpatch.New()25diff := dmp.DiffMain(a, b, false)26diffs := dmp.DiffCleanupSemantic(diff)27fmt.Println(dmp.DiffPrettyText(diffs))28}29import (30func main() {31dmp := diffmatchpatch.New()32diff := dmp.DiffMain(a, b, false)33diffs := dmp.DiffCleanupSemantic(diff)34fmt.Println(dmp.DiffPrettyText(diffs))35}

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1import (2type diff struct {3}4func (d *diff) Tokenize() (string, string) {5 return strings.Split(d.a, ""), strings.Split(d.b, "")6}7func (d *diff) EditDistance() int {8 a, b := d.Tokenize()9 m, n := len(a), len(b)10 dp := make([][]int, m+1)11 for i := range dp {12 dp[i] = make([]int, n+1)13 }14 for i := 0; i <= m; i++ {15 }16 for j := 0; j <= n; j++ {17 }18 for i := 1; i <= m; i++ {19 for j := 1; j <= n; j++ {20 dp[i][j] = int(math.Min(float64(dp[i-1][j]+1), math.Min(float64(dp[i][j-1]+1), float64(dp[i-1][j-1]+int(math.Abs(float64(a[i-1][0]-b[j-1][0])))))))21 }22 }23}24func main() {25 fmt.Println("Enter the number of test cases")26 fmt.Scanln(&n)27 for i := 0; i < n; i++ {28 fmt.Println("Enter the first string")29 fmt.Scanln(&str1)30 fmt.Println("Enter the second string")31 fmt.Scanln(&str2)32 d := diff{str1, str2}33 fmt.Println(d.EditDistance())34 }35}

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