tutorial: delete

Instead we'll point people at the Tour and beef up code.html.

Fixes issue 3107.

R=golang-dev, bradfitz, r, adg
CC=golang-dev
http://codereview.appspot.com/5697077

9 files changed, 0 insertions, 539 deletions

diff --git a/doc/progs/cat.go b/doc/progs/cat.go
deleted file mode 100644
index 79ad01503..000000000
--- a/doc/progs/cat.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"./file"
-	"flag"
-	"fmt"
-	"os"
-)
-
-func cat(f *file.File) {
-	const NBUF = 512
-	var buf [NBUF]byte
-	for {
-		switch nr, er := f.Read(buf[:]); true {
-		case nr < 0:
-			fmt.Fprintf(os.Stderr, "cat: error reading from %s: %s\n", f, er)
-			os.Exit(1)
-		case nr == 0: // EOF
-			return
-		case nr > 0:
-			if nw, ew := file.Stdout.Write(buf[0:nr]); nw != nr {
-				fmt.Fprintf(os.Stderr, "cat: error writing from %s: %s\n", f, ew)
-				os.Exit(1)
-			}
-		}
-	}
-}
-
-func main() {
-	flag.Parse() // Scans the arg list and sets up flags
-	if flag.NArg() == 0 {
-		cat(file.Stdin)
-	}
-	for i := 0; i < flag.NArg(); i++ {
-		f, err := file.Open(flag.Arg(i))
-		if f == nil {
-			fmt.Fprintf(os.Stderr, "cat: can't open %s: error %s\n", flag.Arg(i), err)
-			os.Exit(1)
-		}
-		cat(f)
-		f.Close()
-	}
-}
diff --git a/doc/progs/cat_rot13.go b/doc/progs/cat_rot13.go
deleted file mode 100644
index c8584ed47..000000000
--- a/doc/progs/cat_rot13.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"./file"
-	"flag"
-	"fmt"
-	"os"
-)
-
-var rot13Flag = flag.Bool("rot13", false, "rot13 the input")
-
-func rot13(b byte) byte {
-	if 'a' <= b && b <= 'z' {
-		b = 'a' + ((b-'a')+13)%26
-	}
-	if 'A' <= b && b <= 'Z' {
-		b = 'A' + ((b-'A')+13)%26
-	}
-	return b
-}
-
-type reader interface {
-	Read(b []byte) (ret int, err error)
-	String() string
-}
-
-type rotate13 struct {
-	source reader
-}
-
-func newRotate13(source reader) *rotate13 {
-	return &rotate13{source}
-}
-
-func (r13 *rotate13) Read(b []byte) (ret int, err error) {
-	r, e := r13.source.Read(b)
-	for i := 0; i < r; i++ {
-		b[i] = rot13(b[i])
-	}
-	return r, e
-}
-
-func (r13 *rotate13) String() string {
-	return r13.source.String()
-}
-
-// end of rotate13 implementation OMIT
-
-func cat(r reader) {
-	const NBUF = 512
-	var buf [NBUF]byte
-
-	if *rot13Flag {
-		r = newRotate13(r)
-	}
-	for {
-		switch nr, er := r.Read(buf[:]); {
-		case nr < 0:
-			fmt.Fprintf(os.Stderr, "cat: error reading from %s: %s\n", r, er)
-			os.Exit(1)
-		case nr == 0: // EOF
-			return
-		case nr > 0:
-			nw, ew := file.Stdout.Write(buf[0:nr])
-			if nw != nr {
-				fmt.Fprintf(os.Stderr, "cat: error writing from %s: %s\n", r, ew)
-				os.Exit(1)
-			}
-		}
-	}
-}
-
-func main() {
-	flag.Parse() // Scans the arg list and sets up flags
-	if flag.NArg() == 0 {
-		cat(file.Stdin)
-	}
-	for i := 0; i < flag.NArg(); i++ {
-		f, err := file.Open(flag.Arg(i))
-		if f == nil {
-			fmt.Fprintf(os.Stderr, "cat: can't open %s: error %s\n", flag.Arg(i), err)
-			os.Exit(1)
-		}
-		cat(f)
-		f.Close()
-	}
-}
diff --git a/doc/progs/echo.go b/doc/progs/echo.go
deleted file mode 100644
index 432e80820..000000000
--- a/doc/progs/echo.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"flag" // command line option parser
-	"os"
-)
-
-var omitNewline = flag.Bool("n", false, "don't print final newline")
-
-const (
-	Space   = " "
-	Newline = "\n"
-)
-
-func main() {
-	flag.Parse() // Scans the arg list and sets up flags
-	var s string = ""
-	for i := 0; i < flag.NArg(); i++ {
-		if i > 0 {
-			s += Space
-		}
-		s += flag.Arg(i)
-	}
-	if !*omitNewline {
-		s += Newline
-	}
-	os.Stdout.WriteString(s)
-}
diff --git a/doc/progs/file.go b/doc/progs/file.go
deleted file mode 100644
index 75f0f207a..000000000
--- a/doc/progs/file.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package file
-
-import (
-	"os"
-	"syscall"
-)
-
-type File struct {
-	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 &File{fd, name}
-}
-
-var (
-	Stdin  = newFile(syscall.Stdin, "/dev/stdin")
-	Stdout = newFile(syscall.Stdout, "/dev/stdout")
-	Stderr = newFile(syscall.Stderr, "/dev/stderr")
-)
-
-func OpenFile(name string, mode int, perm uint32) (file *File, err error) {
-	r, err := syscall.Open(name, mode, perm)
-	return newFile(r, name), err
-}
-
-const (
-	O_RDONLY = syscall.O_RDONLY
-	O_RDWR   = syscall.O_RDWR
-	O_CREATE = syscall.O_CREAT
-	O_TRUNC  = syscall.O_TRUNC
-)
-
-func Open(name string) (file *File, err error) {
-	return OpenFile(name, O_RDONLY, 0)
-}
-
-func Create(name string) (file *File, err error) {
-	return OpenFile(name, O_RDWR|O_CREATE|O_TRUNC, 0666)
-}
-
-func (file *File) Close() error {
-	if file == nil {
-		return os.ErrInvalid
-	}
-	err := syscall.Close(file.fd)
-	file.fd = -1 // so it can't be closed again
-	return err
-}
-
-func (file *File) Read(b []byte) (ret int, err error) {
-	if file == nil {
-		return -1, os.ErrInvalid
-	}
-	r, err := syscall.Read(file.fd, b)
-	return int(r), err
-}
-
-func (file *File) Write(b []byte) (ret int, err error) {
-	if file == nil {
-		return -1, os.ErrInvalid
-	}
-	r, err := syscall.Write(file.fd, b)
-	return int(r), err
-}
-
-func (file *File) String() string {
-	return file.name
-}
diff --git a/doc/progs/file_windows.go b/doc/progs/file_windows.go
deleted file mode 100644
index 8b79ee97d..000000000
--- a/doc/progs/file_windows.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package file
-
-import (
-	"os"
-	"syscall"
-)
-
-type File struct {
-	fd   syscall.Handle // file descriptor number
-	name string         // file name at Open time
-}
-
-func newFile(fd syscall.Handle, name string) *File {
-	if fd == ^syscall.Handle(0) {
-		return nil
-	}
-	return &File{fd, name}
-}
-
-var (
-	Stdin  = newFile(syscall.Stdin, "/dev/stdin")
-	Stdout = newFile(syscall.Stdout, "/dev/stdout")
-	Stderr = newFile(syscall.Stderr, "/dev/stderr")
-)
-
-func OpenFile(name string, mode int, perm uint32) (file *File, err error) {
-	r, err := syscall.Open(name, mode, perm)
-	return newFile(r, name), err
-}
-
-const (
-	O_RDONLY = syscall.O_RDONLY
-	O_RDWR   = syscall.O_RDWR
-	O_CREATE = syscall.O_CREAT
-	O_TRUNC  = syscall.O_TRUNC
-)
-
-func Open(name string) (file *File, err error) {
-	return OpenFile(name, O_RDONLY, 0)
-}
-
-func Create(name string) (file *File, err error) {
-	return OpenFile(name, O_RDWR|O_CREATE|O_TRUNC, 0666)
-}
-
-func (file *File) Close() error {
-	if file == nil {
-		return os.ErrInvalid
-	}
-	err := syscall.Close(file.fd)
-	file.fd = syscall.InvalidHandle // so it can't be closed again
-	return err
-}
-
-func (file *File) Read(b []byte) (ret int, err error) {
-	if file == nil {
-		return -1, os.ErrInvalid
-	}
-	r, err := syscall.Read(file.fd, b)
-	return int(r), err
-}
-
-func (file *File) Write(b []byte) (ret int, err error) {
-	if file == nil {
-		return -1, os.ErrInvalid
-	}
-	r, err := syscall.Write(file.fd, b)
-	return int(r), err
-}
-
-func (file *File) String() string {
-	return file.name
-}
diff --git a/doc/progs/run b/doc/progs/run
index 5a2b78651..2470d5e8e 100755
--- a/doc/progs/run
+++ b/doc/progs/run
@@ -14,12 +14,6 @@ fi
 
 rm -f *.$O
 
-if [ "$GOOS" = "windows" ];then
-	$GC -o file.$O file_windows.go
-else
-	$GC file.go
-fi
-
 defer_panic_recover="
 	defer.go 
 	defer2.go 
@@ -38,29 +32,10 @@ error_handling="
 	error4.go
 "
 
-go_tutorial="
-	cat.go 
-	cat_rot13.go 
-	echo.go 
-	helloworld.go 
-	helloworld3.go 
-	print.go 
-	print_string.go 
-	server.go 
-	server1.go 
-	sieve.go 
-	sieve1.go 
-	sort.go 
-	sortmain.go 
-	strings.go 
-	sum.go 
-"
-
 for i in \
 	$defer_panic_recover \
 	$effective_go \
 	$error_handling \
-	$go_tutorial \
 	slices.go \
 	go1.go \
 ; do
@@ -80,43 +55,10 @@ function testit {
 	fi
 }
 
-function testitpipe {
-	$LD $1.$O
-	./$O.out | $2 2>&1 >"$TMPFILE" || true
-	x=$(echo $(cat "$TMPFILE")) # extra echo canonicalizes
-	if [ "$x" != "$3" ]
-	then
-		echo $1 failed: '"'$x'"' is not '"'$3'"'
-	fi
-}
 
-
-testit helloworld "" "Hello, world; or Καλημέρα κόσμε; or こんにちは 世界"
-testit helloworld3 "" "hello, world can't open file; err=no such file or directory"
-testit echo "hello, world" "hello, world"
-testit sum "" "6"
-testit strings "" ""
 testit defer "" "0 3210 2"
 testit defer2 "" "Calling g. Printing in g 0 Printing in g 1 Printing in g 2 Printing in g 3 Panicking! Defer in g 3 Defer in g 2 Defer in g 1 Defer in g 0 Recovered in f 4 Returned normally from f."
 
-alphabet=abcdefghijklmnopqrstuvwxyz
-rot13=nopqrstuvwxyzabcdefghijklm
-echo $alphabet | testit cat "" $alphabet
-echo $alphabet | testit cat_rot13 "--rot13" $rot13
-echo $rot13 | testit cat_rot13 "--rot13" $alphabet
-
-testit sortmain "" "Sunday Monday Tuesday Wednesday Thursday Friday Saturday"
-
-testit print "" "18446744073709551615 -1 18446744073709551615 {77 Sunset Strip} [1 2 3 4] 18446744073709551615 {77 Sunset Strip} [1 2 3 4] 18446744073709551615 {77 Sunset Strip} [1 2 3 4]"
-testit print_string "" "77 Sunset Strip"
-
-testitpipe sieve "sed 10q" "2 3 5 7 11 13 17 19 23 29"
-testitpipe sieve "sed 10q" "2 3 5 7 11 13 17 19 23 29"
-
-# server hangs; don't run it, just compile it
-$GC server.go
-testit server1 "" ""
-
 testit eff_bytesize "" "1.00YB 9.09TB"
 testit eff_sequence "" "[-1 2 6 16 44]"
 
diff --git a/doc/progs/sieve.go b/doc/progs/sieve.go
deleted file mode 100644
index b31530981..000000000
--- a/doc/progs/sieve.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-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'.
-	}
-}
-
-// Copy the values from channel 'in' to channel 'out',
-// 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'.
-		}
-	}
-}
-
-// 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.
-	for i := 0; i < 100; i++ { // Print the first hundred primes.
-		prime := <-ch
-		fmt.Println(prime)
-		ch1 := make(chan int)
-		go filter(ch, ch1, prime)
-		ch = ch1
-	}
-}
diff --git a/doc/progs/sieve1.go b/doc/progs/sieve1.go
deleted file mode 100644
index e1411a334..000000000
--- a/doc/progs/sieve1.go
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import "fmt"
-
-// Send the sequence 2, 3, 4, ... to returned channel 
-func generate() chan int {
-	ch := make(chan int)
-	go func() {
-		for i := 2; ; i++ {
-			ch <- i
-		}
-	}()
-	return ch
-}
-
-// Filter out input values divisible by 'prime', send rest to returned channel
-func filter(in chan int, prime int) chan int {
-	out := make(chan int)
-	go func() {
-		for {
-			if i := <-in; i%prime != 0 {
-				out <- i
-			}
-		}
-	}()
-	return out
-}
-
-func sieve() chan int {
-	out := make(chan int)
-	go func() {
-		ch := generate()
-		for {
-			prime := <-ch
-			out <- prime
-			ch = filter(ch, prime)
-		}
-	}()
-	return out
-}
-
-func main() {
-	primes := sieve()
-	for i := 0; i < 100; i++ { // Print the first hundred primes.
-		fmt.Println(<-primes)
-	}
-}
diff --git a/doc/progs/sortmain.go b/doc/progs/sortmain.go
deleted file mode 100644
index 1bc3355fd..000000000
--- a/doc/progs/sortmain.go
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"./sort"
-	"fmt"
-)
-
-func ints() {
-	data := []int{74, 59, 238, -784, 9845, 959, 905, 0, 0, 42, 7586, -5467984, 7586}
-	a := sort.IntSlice(data)
-	sort.Sort(a)
-	if !sort.IsSorted(a) {
-		panic("fail")
-	}
-}
-
-func strings() {
-	data := []string{"monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"}
-	a := sort.StringSlice(data)
-	sort.Sort(a)
-	if !sort.IsSorted(a) {
-		panic("fail")
-	}
-}
-
-type day struct {
-	num       int
-	shortName string
-	longName  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 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"}
-	data := []*day{&Tuesday, &Thursday, &Wednesday, &Sunday, &Monday, &Friday, &Saturday}
-	a := dayArray{data}
-	sort.Sort(&a)
-	if !sort.IsSorted(&a) {
-		panic("fail")
-	}
-	for _, d := range data {
-		fmt.Printf("%s ", d.longName)
-	}
-	fmt.Printf("\n")
-}
-
-func main() {
-	ints()
-	strings()
-	days()
-}