Automated g4 rollback of changelist 35383.

*** Reason for rollback ***

roll back the changes to the tutorial programs (only) since they
break the automated processing used to create the tutorial.

*** Original change description ***

apply gofmt to the LGTM-marked files from 34501
that have not changed since I applied gofmt.

R=rsc
DELTA=139  (0 added, 44 deleted, 95 changed)
OCL=35670
CL=35670

doc/progs/cat.go

@@ -19,7 +19,7 @@ func cat(f *file.File) {
 		case nr < 0:
 			fmt.Fprintf(os.Stderr, "error reading from %s: %s\n", f.String(), er.String());
 			os.Exit(1);
-		case nr == 0:	// EOF
+		case nr == 0:  // EOF
 			return;
 		case nr > 0:
 			if nw, ew := file.Stdout.Write(buf[0:nr]); nw != nr {
@@ -30,7 +30,7 @@ func cat(f *file.File) {
 }
 
 func main() {
-	flag.Parse();	// Scans the arg list and sets up flags
+	flag.Parse();   // Scans the arg list and sets up flags
 	if flag.NArg() == 0 {
 		cat(file.Stdin);
 	}

doc/progs/cat_rot13.go

@@ -15,12 +15,12 @@ var rot13_flag = flag.Bool("rot13", false, "rot13 the input")
 
 func rot13(b byte) byte {
 	if 'a' <= b && b <= 'z' {
-		b = 'a' + ((b-'a')+13)%26;
+	   b = 'a' + ((b - 'a') + 13) % 26;
 	}
 	if 'A' <= b && b <= 'Z' {
-		b = 'A' + ((b-'A')+13)%26;
+	   b = 'A' + ((b - 'A') + 13) % 26
 	}
-	return b;
+	return b
 }
 
 type reader interface {
@@ -29,23 +29,23 @@ type reader interface {
 }
 
 type rotate13 struct {
-	source reader;
+	source	reader;
 }
 
 func newRotate13(source reader) *rotate13 {
-	return &rotate13{source};
+	return &rotate13{source}
 }
 
 func (r13 *rotate13) Read(b []byte) (ret int, err os.Error) {
 	r, e := r13.source.Read(b);
 	for i := 0; i < r; i++ {
-		b[i] = rot13(b[i]);
+		b[i] = rot13(b[i])
 	}
-	return r, e;
+	return r, e
 }
 
 func (r13 *rotate13) String() string {
-	return r13.source.String();
+	return r13.source.String()
 }
 // end of rotate13 implementation
 
@@ -54,14 +54,14 @@ func cat(r reader) {
 	var buf [NBUF]byte;
 
 	if *rot13_flag {
-		r = newRotate13(r);
+		r = newRotate13(r)
 	}
 	for {
 		switch nr, er := r.Read(&buf); {
 		case nr < 0:
 			fmt.Fprintf(os.Stderr, "error reading from %s: %s\n", r.String(), er.String());
 			os.Exit(1);
-		case nr == 0:	// EOF
+		case nr == 0:  // EOF
 			return;
 		case nr > 0:
 			nw, ew := file.Stdout.Write(buf[0:nr]);
@@ -73,7 +73,7 @@ func cat(r reader) {
 }
 
 func main() {
-	flag.Parse();	// Scans the arg list and sets up flags
+	flag.Parse();   // Scans the arg list and sets up flags
 	if flag.NArg() == 0 {
 		cat(file.Stdin);
 	}

doc/progs/echo.go

@@ -12,21 +12,21 @@ import (
 var n_flag = flag.Bool("n", false, "don't print final newline")
 
 const (
-	kSpace		= " ";
-	kNewline	= "\n";
+	kSpace = " ";
+	kNewline = "\n";
 )
 
 func main() {
-	flag.Parse();	// Scans the arg list and sets up flags
+	flag.Parse();   // Scans the arg list and sets up flags
 	var s string = "";
 	for i := 0; i < flag.NArg(); i++ {
 		if i > 0 {
-			s += kSpace;
+			s += kSpace
 		}
-		s += flag.Arg(i);
+		s += flag.Arg(i)
 	}
 	if !*n_flag {
-		s += kNewline;
+		s += kNewline
 	}
 	os.Stdout.WriteString(s);
 }

doc/progs/file.go

@@ -10,21 +10,21 @@ import (
 )
 
 type File struct {
-	fd	int;	// file descriptor number
-	name	string;	// file name at Open time
+	fd      int;  // file descriptor number
+	name    string; // file name at Open time
 }
 
 func newFile(fd int, name string) *File {
 	if fd < 0 {
-		return nil;
+		return nil
 	}
-	return &File{fd, name};
+	return &File{fd, name}
 }
 
 var (
-	Stdin	= newFile(0, "/dev/stdin");
-	Stdout	= newFile(1, "/dev/stdout");
-	Stderr	= newFile(2, "/dev/stderr");
+	Stdin  = newFile(0, "/dev/stdin");
+	Stdout = newFile(1, "/dev/stdout");
+	Stderr = newFile(2, "/dev/stderr");
 )
 
 func Open(name string, mode int, perm int) (file *File, err os.Error) {
@@ -32,43 +32,43 @@ func Open(name string, mode int, perm int) (file *File, err os.Error) {
 	if e != 0 {
 		err = os.Errno(e);
 	}
-	return newFile(r, name), err;
+	return newFile(r, name), err
 }
 
 func (file *File) Close() os.Error {
 	if file == nil {
-		return os.EINVAL;
+		return os.EINVAL
 	}
 	e := syscall.Close(file.fd);
-	file.fd = -1;	// so it can't be closed again
+	file.fd = -1;  // so it can't be closed again
 	if e != 0 {
 		return os.Errno(e);
 	}
-	return nil;
+	return nil
 }
 
 func (file *File) Read(b []byte) (ret int, err os.Error) {
 	if file == nil {
-		return -1, os.EINVAL;
+		return -1, os.EINVAL
 	}
 	r, e := syscall.Read(file.fd, b);
 	if e != 0 {
 		err = os.Errno(e);
 	}
-	return int(r), err;
+	return int(r), err
 }
 
 func (file *File) Write(b []byte) (ret int, err os.Error) {
 	if file == nil {
-		return -1, os.EINVAL;
+		return -1, os.EINVAL
 	}
 	r, e := syscall.Write(file.fd, b);
 	if e != 0 {
 		err = os.Errno(e);
 	}
-	return int(r), err;
+	return int(r), err
 }
 
 func (file *File) String() string {
-	return file.name;
+	return file.name
 }

doc/progs/helloworld.go

@@ -4,7 +4,7 @@
 
 package main
 
-import fmt "fmt"	// Package implementing formatted I/O.
+import fmt "fmt"  // Package implementing formatted I/O.
 
 func main() {
 	fmt.Printf("Hello, world; or Καλημέρα κόσμε; or こんにちは 世界\n");

doc/progs/helloworld3.go

@@ -13,9 +13,9 @@ import (
 func main() {
 	hello := []byte{'h', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd', '\n'};
 	file.Stdout.Write(hello);
-	file, err := file.Open("/does/not/exist", 0, 0);
+	file, err := file.Open("/does/not/exist",  0,  0);
 	if file == nil {
-		fmt.Printf("can't open file; err=%s\n", err.String());
+		fmt.Printf("can't open file; err=%s\n",  err.String());
 		os.Exit(1);
 	}
 }

doc/progs/print.go

@@ -7,14 +7,11 @@ package main
 import "fmt"
 
 func main() {
-	var u64 uint64 = 1<<64 - 1;
+	var u64 uint64 = 1<<64-1;
 	fmt.Printf("%d %d\n", u64, int64(u64));
 
 	// harder stuff
-	type T struct {
-		a	int;
-		b	string;
-	}
+	type T struct { a int; b string };
 	t := T{77, "Sunset Strip"};
 	a := []int{1, 2, 3, 4};
 	fmt.Printf("%v %v %v\n", u64, t, a);

doc/progs/print_string.go

@@ -6,16 +6,13 @@ package main
 
 import "fmt"
 
-type testType struct {
-	a	int;
-	b	string;
-}
+type testType struct { a int; b string }
 
 func (t *testType) String() string {
-	return fmt.Sprint(t.a) + " " + t.b;
+	return fmt.Sprint(t.a) + " " + t.b
 }
 
 func main() {
 	t := &testType{77, "Sunset Strip"};
-	fmt.Println(t);
+	fmt.Println(t)
 }

doc/progs/sieve.go

@@ -9,7 +9,7 @@ import "fmt"
 // Send the sequence 2, 3, 4, ... to channel 'ch'.
 func generate(ch chan int) {
 	for i := 2; ; i++ {
-		ch <- i;	// Send 'i' to channel 'ch'.
+		ch <- i  // Send 'i' to channel 'ch'.
 	}
 }
 
@@ -17,22 +17,22 @@ func generate(ch chan int) {
 // removing those divisible by 'prime'.
 func filter(in, out chan int, prime int) {
 	for {
-		i := <-in;	// Receive value of new variable 'i' from 'in'.
-		if i%prime != 0 {
-			out <- i;	// Send 'i' to channel 'out'.
+		i := <-in;  // Receive value of new variable 'i' from 'in'.
+		if i % prime != 0 {
+			out <- i  // Send 'i' to channel 'out'.
 		}
 	}
 }
 
 // The prime sieve: Daisy-chain filter processes together.
 func main() {
-	ch := make(chan int);	// Create a new channel.
-	go generate(ch);	// Start generate() as a goroutine.
+	ch := make(chan int);  // Create a new channel.
+	go generate(ch);  // Start generate() as a goroutine.
 	for {
 		prime := <-ch;
 		fmt.Println(prime);
 		ch1 := make(chan int);
 		go filter(ch, ch1, prime);
-		ch = ch1;
+		ch = ch1
 	}
 }

doc/progs/sieve1.go

@@ -6,12 +6,12 @@ package main
 
 import "fmt"
 
-// Send the sequence 2, 3, 4, ... to returned channel
+// Send the sequence 2, 3, 4, ... to returned channel 
 func generate() chan int {
 	ch := make(chan int);
-	go func() {
+	go func(){
 		for i := 2; ; i++ {
-			ch <- i;
+			ch <- i
 		}
 	}();
 	return ch;
@@ -22,8 +22,8 @@ func filter(in chan int, prime int) chan int {
 	out := make(chan int);
 	go func() {
 		for {
-			if i := <-in; i%prime != 0 {
-				out <- i;
+			if i := <-in; i % prime != 0 {
+				out <- i
 			}
 		}
 	}();

doc/progs/sort.go

@@ -20,8 +20,8 @@ func Sort(data SortInterface) {
 
 func IsSorted(data SortInterface) bool {
 	n := data.Len();
-	for i := n-1; i > 0; i-- {
-		if data.Less(i, i-1) {
+	for i := n - 1; i > 0; i-- {
+		if data.Less(i, i - 1) {
 			return false;
 		}
 	}
@@ -32,62 +32,32 @@ func IsSorted(data SortInterface) bool {
 
 type IntArray []int
 
-func (p IntArray) Len() int {
-	return len(p);
-}
-func (p IntArray) Less(i, j int) bool {
-	return p[i] < p[j];
-}
-func (p IntArray) Swap(i, j int) {
-	p[i], p[j] = p[j], p[i];
-}
+func (p IntArray) Len() int            { return len(p); }
+func (p IntArray) Less(i, j int) bool  { return p[i] < p[j]; }
+func (p IntArray) Swap(i, j int)       { p[i], p[j] = p[j], p[i]; }
 
 
 type FloatArray []float
 
-func (p FloatArray) Len() int {
-	return len(p);
-}
-func (p FloatArray) Less(i, j int) bool {
-	return p[i] < p[j];
-}
-func (p FloatArray) Swap(i, j int) {
-	p[i], p[j] = p[j], p[i];
-}
+func (p FloatArray) Len() int            { return len(p); }
+func (p FloatArray) Less(i, j int) bool  { return p[i] < p[j]; }
+func (p FloatArray) Swap(i, j int)       { p[i], p[j] = p[j], p[i]; }
 
 
 type StringArray []string
 
-func (p StringArray) Len() int {
-	return len(p);
-}
-func (p StringArray) Less(i, j int) bool {
-	return p[i] < p[j];
-}
-func (p StringArray) Swap(i, j int) {
-	p[i], p[j] = p[j], p[i];
-}
+func (p StringArray) Len() int            { return len(p); }
+func (p StringArray) Less(i, j int) bool  { return p[i] < p[j]; }
+func (p StringArray) Swap(i, j int)       { p[i], p[j] = p[j], p[i]; }
 
 
 // Convenience wrappers for common cases
 
-func SortInts(a []int) {
-	Sort(IntArray(a));
-}
-func SortFloats(a []float) {
-	Sort(FloatArray(a));
-}
-func SortStrings(a []string) {
-	Sort(StringArray(a));
-}
+func SortInts(a []int)        { Sort(IntArray(a)); }
+func SortFloats(a []float)    { Sort(FloatArray(a)); }
+func SortStrings(a []string)  { Sort(StringArray(a)); }
 
 
-func IntsAreSorted(a []int) bool {
-	return IsSorted(IntArray(a));
-}
-func FloatsAreSorted(a []float) bool {
-	return IsSorted(FloatArray(a));
-}
-func StringsAreSorted(a []string) bool {
-	return IsSorted(StringArray(a));
-}
+func IntsAreSorted(a []int) bool       { return IsSorted(IntArray(a)); }
+func FloatsAreSorted(a []float) bool   { return IsSorted(FloatArray(a)); }
+func StringsAreSorted(a []string) bool { return IsSorted(StringArray(a)); }

doc/progs/sortmain.go

@@ -14,7 +14,7 @@ func ints() {
 	a := sort.IntArray(data);
 	sort.Sort(a);
 	if !sort.IsSorted(a) {
-		panic();
+		panic()
 	}
 }
 
@@ -23,48 +23,42 @@ func strings() {
 	a := sort.StringArray(data);
 	sort.Sort(a);
 	if !sort.IsSorted(a) {
-		panic();
+		panic()
 	}
 }
 
 type day struct {
-	num		int;
-	short_name	string;
-	long_name	string;
+	num        int;
+	short_name string;
+	long_name  string;
 }
 
 type dayArray struct {
 	data []*day;
 }
 
-func (p *dayArray) Len() int {
-	return len(p.data);
-}
-func (p *dayArray) Less(i, j int) bool {
-	return p.data[i].num < p.data[j].num;
-}
-func (p *dayArray) Swap(i, j int) {
-	p.data[i], p.data[j] = p.data[j], p.data[i];
-}
+func (p *dayArray) Len() int            { return len(p.data); }
+func (p *dayArray) Less(i, j int) bool  { return p.data[i].num < p.data[j].num; }
+func (p *dayArray) Swap(i, j int)       { p.data[i], p.data[j] = p.data[j], p.data[i]; }
 
 func days() {
-	Sunday := day{0, "SUN", "Sunday"};
-	Monday := day{1, "MON", "Monday"};
-	Tuesday := day{2, "TUE", "Tuesday"};
-	Wednesday := day{3, "WED", "Wednesday"};
-	Thursday := day{4, "THU", "Thursday"};
-	Friday := day{5, "FRI", "Friday"};
-	Saturday := day{6, "SAT", "Saturday"};
+	Sunday :=    day{ 0, "SUN", "Sunday" };
+	Monday :=    day{ 1, "MON", "Monday" };
+	Tuesday :=   day{ 2, "TUE", "Tuesday" };
+	Wednesday := day{ 3, "WED", "Wednesday" };
+	Thursday :=  day{ 4, "THU", "Thursday" };
+	Friday :=    day{ 5, "FRI", "Friday" };
+	Saturday :=  day{ 6, "SAT", "Saturday" };
 	data := []*day{&Tuesday, &Thursday, &Wednesday, &Sunday, &Monday, &Friday, &Saturday};
 	a := dayArray{data};
 	sort.Sort(&a);
 	if !sort.IsSorted(&a) {
-		panic();
+		panic()
 	}
 	for _, d := range data {
-		fmt.Printf("%s ", d.long_name);
+		fmt.Printf("%s ", d.long_name)
 	}
-	fmt.Printf("\n");
+	fmt.Printf("\n")
 }
 
 

doc/progs/strings.go

@@ -9,9 +9,7 @@ import "os"
 
 func main() {
 	s := "hello";
-	if s[1] != 'e' {
-		os.Exit(1);
-	}
+	if s[1] != 'e' { os.Exit(1) }
 	s = "good bye";
 	var p *string = &s;
 	*p = "ciao";

doc/progs/sum.go

@@ -6,16 +6,16 @@ package main
 
 import "fmt"
 
-func sum(a []int) int {	// returns an int
+func sum(a []int) int {   // returns an int
 	s := 0;
 	for i := 0; i < len(a); i++ {
-		s += a[i];
+		s += a[i]
 	}
-	return s;
+	return s
 }
 
 
 func main() {
-	s := sum(&[3]int{1, 2, 3});	// a slice of the array is passed to sum
+	s := sum(&[3]int{1,2,3});  // a slice of the array is passed to sum
 	fmt.Print(s, "\n");
 }