Use mod vendor for vendored directory (backwards compatible)

4 files changed, 0 insertions, 957 deletions

diff --git a/vendor/golang.org/x/text/internal/gen/LICENSE b/vendor/golang.org/x/text/internal/gen/LICENSE
deleted file mode 100644
index 6a66aea5..00000000
--- a/vendor/golang.org/x/text/internal/gen/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/golang.org/x/text/internal/gen/bitfield/bitfield.go b/vendor/golang.org/x/text/internal/gen/bitfield/bitfield.go
deleted file mode 100644
index a8d0a48d..00000000
--- a/vendor/golang.org/x/text/internal/gen/bitfield/bitfield.go
+++ /dev/null
@@ -1,226 +0,0 @@
-// Copyright 2018 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 bitfield converts annotated structs into integer values.
-//
-// Any field that is marked with a bitfield tag is compacted. The tag value has
-// two parts. The part before the comma determines the method name for a
-// generated type. If left blank the name of the field is used.
-// The part after the comma determines the number of bits to use for the
-// representation.
-package bitfield
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"reflect"
-	"strconv"
-	"strings"
-)
-
-// Config determines settings for packing and generation. If a Config is used,
-// the same Config should be used for packing and generation.
-type Config struct {
-	// NumBits fixes the maximum allowed bits for the integer representation.
-	// If NumBits is not 8, 16, 32, or 64, the actual underlying integer size
-	// will be the next largest available.
-	NumBits uint
-
-	// If Package is set, code generation will write a package clause.
-	Package string
-
-	// TypeName is the name for the generated type. By default it is the name
-	// of the type of the value passed to Gen.
-	TypeName string
-}
-
-var nullConfig = &Config{}
-
-// Pack packs annotated bit ranges of struct x in an integer.
-//
-// Only fields that have a "bitfield" tag are compacted.
-func Pack(x interface{}, c *Config) (packed uint64, err error) {
-	packed, _, err = pack(x, c)
-	return
-}
-
-func pack(x interface{}, c *Config) (packed uint64, nBit uint, err error) {
-	if c == nil {
-		c = nullConfig
-	}
-	nBits := c.NumBits
-	v := reflect.ValueOf(x)
-	v = reflect.Indirect(v)
-	t := v.Type()
-	pos := 64 - nBits
-	if nBits == 0 {
-		pos = 0
-	}
-	for i := 0; i < v.NumField(); i++ {
-		v := v.Field(i)
-		field := t.Field(i)
-		f, err := parseField(field)
-
-		if err != nil {
-			return 0, 0, err
-		}
-		if f.nBits == 0 {
-			continue
-		}
-		value := uint64(0)
-		switch v.Kind() {
-		case reflect.Bool:
-			if v.Bool() {
-				value = 1
-			}
-		case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-			value = v.Uint()
-		case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-			x := v.Int()
-			if x < 0 {
-				return 0, 0, fmt.Errorf("bitfield: negative value for field %q not allowed", field.Name)
-			}
-			value = uint64(x)
-		}
-		if value > (1<<f.nBits)-1 {
-			return 0, 0, fmt.Errorf("bitfield: value %#x of field %q does not fit in %d bits", value, field.Name, f.nBits)
-		}
-		shift := 64 - pos - f.nBits
-		if pos += f.nBits; pos > 64 {
-			return 0, 0, fmt.Errorf("bitfield: no more bits left for field %q", field.Name)
-		}
-		packed |= value << shift
-	}
-	if nBits == 0 {
-		nBits = posToBits(pos)
-		packed >>= (64 - nBits)
-	}
-	return packed, nBits, nil
-}
-
-type field struct {
-	name  string
-	value uint64
-	nBits uint
-}
-
-// parseField parses a tag of the form [<name>][:<nBits>][,<pos>[..<end>]]
-func parseField(field reflect.StructField) (f field, err error) {
-	s, ok := field.Tag.Lookup("bitfield")
-	if !ok {
-		return f, nil
-	}
-	switch field.Type.Kind() {
-	case reflect.Bool:
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-	default:
-		return f, fmt.Errorf("bitfield: field %q is not an integer or bool type", field.Name)
-	}
-	bits := s
-	f.name = ""
-
-	if i := strings.IndexByte(s, ','); i >= 0 {
-		bits = s[:i]
-		f.name = s[i+1:]
-	}
-	if bits != "" {
-		nBits, err := strconv.ParseUint(bits, 10, 8)
-		if err != nil {
-			return f, fmt.Errorf("bitfield: invalid bit size for field %q: %v", field.Name, err)
-		}
-		f.nBits = uint(nBits)
-	}
-	if f.nBits == 0 {
-		if field.Type.Kind() == reflect.Bool {
-			f.nBits = 1
-		} else {
-			f.nBits = uint(field.Type.Bits())
-		}
-	}
-	if f.name == "" {
-		f.name = field.Name
-	}
-	return f, err
-}
-
-func posToBits(pos uint) (bits uint) {
-	switch {
-	case pos <= 8:
-		bits = 8
-	case pos <= 16:
-		bits = 16
-	case pos <= 32:
-		bits = 32
-	case pos <= 64:
-		bits = 64
-	default:
-		panic("unreachable")
-	}
-	return bits
-}
-
-// Gen generates code for unpacking integers created with Pack.
-func Gen(w io.Writer, x interface{}, c *Config) error {
-	if c == nil {
-		c = nullConfig
-	}
-	_, nBits, err := pack(x, c)
-	if err != nil {
-		return err
-	}
-
-	t := reflect.TypeOf(x)
-	if t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-	if c.TypeName == "" {
-		c.TypeName = t.Name()
-	}
-	firstChar := []rune(c.TypeName)[0]
-
-	buf := &bytes.Buffer{}
-
-	print := func(w io.Writer, format string, args ...interface{}) {
-		if _, e := fmt.Fprintf(w, format+"\n", args...); e != nil && err == nil {
-			err = fmt.Errorf("bitfield: write failed: %v", err)
-		}
-	}
-
-	pos := uint(0)
-	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-		f, _ := parseField(field)
-		if f.nBits == 0 {
-			continue
-		}
-		shift := nBits - pos - f.nBits
-		pos += f.nBits
-
-		retType := field.Type.Name()
-		print(buf, "\nfunc (%c %s) %s() %s {", firstChar, c.TypeName, f.name, retType)
-		if field.Type.Kind() == reflect.Bool {
-			print(buf, "\tconst bit = 1 << %d", shift)
-			print(buf, "\treturn %c&bit == bit", firstChar)
-		} else {
-			print(buf, "\treturn %s((%c >> %d) & %#x)", retType, firstChar, shift, (1<<f.nBits)-1)
-		}
-		print(buf, "}")
-	}
-
-	if c.Package != "" {
-		print(w, "// Code generated by golang.org/x/text/internal/gen/bitfield. DO NOT EDIT.\n")
-		print(w, "package %s\n", c.Package)
-	}
-
-	bits := posToBits(pos)
-
-	print(w, "type %s uint%d", c.TypeName, bits)
-
-	if _, err := io.Copy(w, buf); err != nil {
-		return fmt.Errorf("bitfield: write failed: %v", err)
-	}
-	return nil
-}
diff --git a/vendor/golang.org/x/text/internal/gen/code.go b/vendor/golang.org/x/text/internal/gen/code.go
deleted file mode 100644
index 25aaa033..00000000
--- a/vendor/golang.org/x/text/internal/gen/code.go
+++ /dev/null
@@ -1,371 +0,0 @@
-// Copyright 2015 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 gen
-
-import (
-	"bytes"
-	"encoding/gob"
-	"fmt"
-	"hash"
-	"hash/fnv"
-	"io"
-	"log"
-	"os"
-	"reflect"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-// This file contains utilities for generating code.
-
-// TODO: other write methods like:
-// - slices, maps, types, etc.
-
-// CodeWriter is a utility for writing structured code. It computes the content
-// hash and size of written content. It ensures there are newlines between
-// written code blocks.
-type CodeWriter struct {
-	buf  bytes.Buffer
-	Size int
-	Hash hash.Hash32 // content hash
-	gob  *gob.Encoder
-	// For comments we skip the usual one-line separator if they are followed by
-	// a code block.
-	skipSep bool
-}
-
-func (w *CodeWriter) Write(p []byte) (n int, err error) {
-	return w.buf.Write(p)
-}
-
-// NewCodeWriter returns a new CodeWriter.
-func NewCodeWriter() *CodeWriter {
-	h := fnv.New32()
-	return &CodeWriter{Hash: h, gob: gob.NewEncoder(h)}
-}
-
-// WriteGoFile appends the buffer with the total size of all created structures
-// and writes it as a Go file to the the given file with the given package name.
-func (w *CodeWriter) WriteGoFile(filename, pkg string) {
-	f, err := os.Create(filename)
-	if err != nil {
-		log.Fatalf("Could not create file %s: %v", filename, err)
-	}
-	defer f.Close()
-	if _, err = w.WriteGo(f, pkg, ""); err != nil {
-		log.Fatalf("Error writing file %s: %v", filename, err)
-	}
-}
-
-// WriteVersionedGoFile appends the buffer with the total size of all created
-// structures and writes it as a Go file to the the given file with the given
-// package name and build tags for the current Unicode version,
-func (w *CodeWriter) WriteVersionedGoFile(filename, pkg string) {
-	tags := buildTags()
-	if tags != "" {
-		filename = insertVersion(filename, UnicodeVersion())
-	}
-	f, err := os.Create(filename)
-	if err != nil {
-		log.Fatalf("Could not create file %s: %v", filename, err)
-	}
-	defer f.Close()
-	if _, err = w.WriteGo(f, pkg, tags); err != nil {
-		log.Fatalf("Error writing file %s: %v", filename, err)
-	}
-}
-
-// WriteGo appends the buffer with the total size of all created structures and
-// writes it as a Go file to the the given writer with the given package name.
-func (w *CodeWriter) WriteGo(out io.Writer, pkg, tags string) (n int, err error) {
-	sz := w.Size
-	w.WriteComment("Total table size %d bytes (%dKiB); checksum: %X\n", sz, sz/1024, w.Hash.Sum32())
-	defer w.buf.Reset()
-	return WriteGo(out, pkg, tags, w.buf.Bytes())
-}
-
-func (w *CodeWriter) printf(f string, x ...interface{}) {
-	fmt.Fprintf(w, f, x...)
-}
-
-func (w *CodeWriter) insertSep() {
-	if w.skipSep {
-		w.skipSep = false
-		return
-	}
-	// Use at least two newlines to ensure a blank space between the previous
-	// block. WriteGoFile will remove extraneous newlines.
-	w.printf("\n\n")
-}
-
-// WriteComment writes a comment block. All line starts are prefixed with "//".
-// Initial empty lines are gobbled. The indentation for the first line is
-// stripped from consecutive lines.
-func (w *CodeWriter) WriteComment(comment string, args ...interface{}) {
-	s := fmt.Sprintf(comment, args...)
-	s = strings.Trim(s, "\n")
-
-	// Use at least two newlines to ensure a blank space between the previous
-	// block. WriteGoFile will remove extraneous newlines.
-	w.printf("\n\n// ")
-	w.skipSep = true
-
-	// strip first indent level.
-	sep := "\n"
-	for ; len(s) > 0 && (s[0] == '\t' || s[0] == ' '); s = s[1:] {
-		sep += s[:1]
-	}
-
-	strings.NewReplacer(sep, "\n// ", "\n", "\n// ").WriteString(w, s)
-
-	w.printf("\n")
-}
-
-func (w *CodeWriter) writeSizeInfo(size int) {
-	w.printf("// Size: %d bytes\n", size)
-}
-
-// WriteConst writes a constant of the given name and value.
-func (w *CodeWriter) WriteConst(name string, x interface{}) {
-	w.insertSep()
-	v := reflect.ValueOf(x)
-
-	switch v.Type().Kind() {
-	case reflect.String:
-		w.printf("const %s %s = ", name, typeName(x))
-		w.WriteString(v.String())
-		w.printf("\n")
-	default:
-		w.printf("const %s = %#v\n", name, x)
-	}
-}
-
-// WriteVar writes a variable of the given name and value.
-func (w *CodeWriter) WriteVar(name string, x interface{}) {
-	w.insertSep()
-	v := reflect.ValueOf(x)
-	oldSize := w.Size
-	sz := int(v.Type().Size())
-	w.Size += sz
-
-	switch v.Type().Kind() {
-	case reflect.String:
-		w.printf("var %s %s = ", name, typeName(x))
-		w.WriteString(v.String())
-	case reflect.Struct:
-		w.gob.Encode(x)
-		fallthrough
-	case reflect.Slice, reflect.Array:
-		w.printf("var %s = ", name)
-		w.writeValue(v)
-		w.writeSizeInfo(w.Size - oldSize)
-	default:
-		w.printf("var %s %s = ", name, typeName(x))
-		w.gob.Encode(x)
-		w.writeValue(v)
-		w.writeSizeInfo(w.Size - oldSize)
-	}
-	w.printf("\n")
-}
-
-func (w *CodeWriter) writeValue(v reflect.Value) {
-	x := v.Interface()
-	switch v.Kind() {
-	case reflect.String:
-		w.WriteString(v.String())
-	case reflect.Array:
-		// Don't double count: callers of WriteArray count on the size being
-		// added, so we need to discount it here.
-		w.Size -= int(v.Type().Size())
-		w.writeSlice(x, true)
-	case reflect.Slice:
-		w.writeSlice(x, false)
-	case reflect.Struct:
-		w.printf("%s{\n", typeName(v.Interface()))
-		t := v.Type()
-		for i := 0; i < v.NumField(); i++ {
-			w.printf("%s: ", t.Field(i).Name)
-			w.writeValue(v.Field(i))
-			w.printf(",\n")
-		}
-		w.printf("}")
-	default:
-		w.printf("%#v", x)
-	}
-}
-
-// WriteString writes a string literal.
-func (w *CodeWriter) WriteString(s string) {
-	io.WriteString(w.Hash, s) // content hash
-	w.Size += len(s)
-
-	const maxInline = 40
-	if len(s) <= maxInline {
-		w.printf("%q", s)
-		return
-	}
-
-	// We will render the string as a multi-line string.
-	const maxWidth = 80 - 4 - len(`"`) - len(`" +`)
-
-	// When starting on its own line, go fmt indents line 2+ an extra level.
-	n, max := maxWidth, maxWidth-4
-
-	// As per https://golang.org/issue/18078, the compiler has trouble
-	// compiling the concatenation of many strings, s0 + s1 + s2 + ... + sN,
-	// for large N. We insert redundant, explicit parentheses to work around
-	// that, lowering the N at any given step: (s0 + s1 + ... + s63) + (s64 +
-	// ... + s127) + etc + (etc + ... + sN).
-	explicitParens, extraComment := len(s) > 128*1024, ""
-	if explicitParens {
-		w.printf(`(`)
-		extraComment = "; the redundant, explicit parens are for https://golang.org/issue/18078"
-	}
-
-	// Print "" +\n, if a string does not start on its own line.
-	b := w.buf.Bytes()
-	if p := len(bytes.TrimRight(b, " \t")); p > 0 && b[p-1] != '\n' {
-		w.printf("\"\" + // Size: %d bytes%s\n", len(s), extraComment)
-		n, max = maxWidth, maxWidth
-	}
-
-	w.printf(`"`)
-
-	for sz, p, nLines := 0, 0, 0; p < len(s); {
-		var r rune
-		r, sz = utf8.DecodeRuneInString(s[p:])
-		out := s[p : p+sz]
-		chars := 1
-		if !unicode.IsPrint(r) || r == utf8.RuneError || r == '"' {
-			switch sz {
-			case 1:
-				out = fmt.Sprintf("\\x%02x", s[p])
-			case 2, 3:
-				out = fmt.Sprintf("\\u%04x", r)
-			case 4:
-				out = fmt.Sprintf("\\U%08x", r)
-			}
-			chars = len(out)
-		} else if r == '\\' {
-			out = "\\" + string(r)
-			chars = 2
-		}
-		if n -= chars; n < 0 {
-			nLines++
-			if explicitParens && nLines&63 == 63 {
-				w.printf("\") + (\"")
-			}
-			w.printf("\" +\n\"")
-			n = max - len(out)
-		}
-		w.printf("%s", out)
-		p += sz
-	}
-	w.printf(`"`)
-	if explicitParens {
-		w.printf(`)`)
-	}
-}
-
-// WriteSlice writes a slice value.
-func (w *CodeWriter) WriteSlice(x interface{}) {
-	w.writeSlice(x, false)
-}
-
-// WriteArray writes an array value.
-func (w *CodeWriter) WriteArray(x interface{}) {
-	w.writeSlice(x, true)
-}
-
-func (w *CodeWriter) writeSlice(x interface{}, isArray bool) {
-	v := reflect.ValueOf(x)
-	w.gob.Encode(v.Len())
-	w.Size += v.Len() * int(v.Type().Elem().Size())
-	name := typeName(x)
-	if isArray {
-		name = fmt.Sprintf("[%d]%s", v.Len(), name[strings.Index(name, "]")+1:])
-	}
-	if isArray {
-		w.printf("%s{\n", name)
-	} else {
-		w.printf("%s{ // %d elements\n", name, v.Len())
-	}
-
-	switch kind := v.Type().Elem().Kind(); kind {
-	case reflect.String:
-		for _, s := range x.([]string) {
-			w.WriteString(s)
-			w.printf(",\n")
-		}
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
-		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		// nLine and nBlock are the number of elements per line and block.
-		nLine, nBlock, format := 8, 64, "%d,"
-		switch kind {
-		case reflect.Uint8:
-			format = "%#02x,"
-		case reflect.Uint16:
-			format = "%#04x,"
-		case reflect.Uint32:
-			nLine, nBlock, format = 4, 32, "%#08x,"
-		case reflect.Uint, reflect.Uint64:
-			nLine, nBlock, format = 4, 32, "%#016x,"
-		case reflect.Int8:
-			nLine = 16
-		}
-		n := nLine
-		for i := 0; i < v.Len(); i++ {
-			if i%nBlock == 0 && v.Len() > nBlock {
-				w.printf("// Entry %X - %X\n", i, i+nBlock-1)
-			}
-			x := v.Index(i).Interface()
-			w.gob.Encode(x)
-			w.printf(format, x)
-			if n--; n == 0 {
-				n = nLine
-				w.printf("\n")
-			}
-		}
-		w.printf("\n")
-	case reflect.Struct:
-		zero := reflect.Zero(v.Type().Elem()).Interface()
-		for i := 0; i < v.Len(); i++ {
-			x := v.Index(i).Interface()
-			w.gob.EncodeValue(v)
-			if !reflect.DeepEqual(zero, x) {
-				line := fmt.Sprintf("%#v,\n", x)
-				line = line[strings.IndexByte(line, '{'):]
-				w.printf("%d: ", i)
-				w.printf(line)
-			}
-		}
-	case reflect.Array:
-		for i := 0; i < v.Len(); i++ {
-			w.printf("%d: %#v,\n", i, v.Index(i).Interface())
-		}
-	default:
-		panic("gen: slice elem type not supported")
-	}
-	w.printf("}")
-}
-
-// WriteType writes a definition of the type of the given value and returns the
-// type name.
-func (w *CodeWriter) WriteType(x interface{}) string {
-	t := reflect.TypeOf(x)
-	w.printf("type %s struct {\n", t.Name())
-	for i := 0; i < t.NumField(); i++ {
-		w.printf("\t%s %s\n", t.Field(i).Name, t.Field(i).Type)
-	}
-	w.printf("}\n")
-	return t.Name()
-}
-
-// typeName returns the name of the go type of x.
-func typeName(x interface{}) string {
-	t := reflect.ValueOf(x).Type()
-	return strings.Replace(fmt.Sprint(t), "main.", "", 1)
-}
diff --git a/vendor/golang.org/x/text/internal/gen/gen.go b/vendor/golang.org/x/text/internal/gen/gen.go
deleted file mode 100644
index 4c3f7606..00000000
--- a/vendor/golang.org/x/text/internal/gen/gen.go
+++ /dev/null
@@ -1,333 +0,0 @@
-// Copyright 2015 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 gen contains common code for the various code generation tools in the
-// text repository. Its usage ensures consistency between tools.
-//
-// This package defines command line flags that are common to most generation
-// tools. The flags allow for specifying specific Unicode and CLDR versions
-// in the public Unicode data repository (http://www.unicode.org/Public).
-//
-// A local Unicode data mirror can be set through the flag -local or the
-// environment variable UNICODE_DIR. The former takes precedence. The local
-// directory should follow the same structure as the public repository.
-//
-// IANA data can also optionally be mirrored by putting it in the iana directory
-// rooted at the top of the local mirror. Beware, though, that IANA data is not
-// versioned. So it is up to the developer to use the right version.
-package gen // import "golang.org/x/text/internal/gen"
-
-import (
-	"bytes"
-	"flag"
-	"fmt"
-	"go/build"
-	"go/format"
-	"io"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-	"sync"
-	"unicode"
-
-	"golang.org/x/text/unicode/cldr"
-)
-
-var (
-	url = flag.String("url",
-		"http://www.unicode.org/Public",
-		"URL of Unicode database directory")
-	iana = flag.String("iana",
-		"http://www.iana.org",
-		"URL of the IANA repository")
-	unicodeVersion = flag.String("unicode",
-		getEnv("UNICODE_VERSION", unicode.Version),
-		"unicode version to use")
-	cldrVersion = flag.String("cldr",
-		getEnv("CLDR_VERSION", cldr.Version),
-		"cldr version to use")
-)
-
-func getEnv(name, def string) string {
-	if v := os.Getenv(name); v != "" {
-		return v
-	}
-	return def
-}
-
-// Init performs common initialization for a gen command. It parses the flags
-// and sets up the standard logging parameters.
-func Init() {
-	log.SetPrefix("")
-	log.SetFlags(log.Lshortfile)
-	flag.Parse()
-}
-
-const header = `// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
-
-`
-
-// UnicodeVersion reports the requested Unicode version.
-func UnicodeVersion() string {
-	return *unicodeVersion
-}
-
-// CLDRVersion reports the requested CLDR version.
-func CLDRVersion() string {
-	return *cldrVersion
-}
-
-var tags = []struct{ version, buildTags string }{
-	{"10.0.0", "go1.10"},
-	{"", "!go1.10"},
-}
-
-// buildTags reports the build tags used for the current Unicode version.
-func buildTags() string {
-	v := UnicodeVersion()
-	for _, x := range tags {
-		// We should do a numeric comparison, but including the collate package
-		// would create an import cycle. We approximate it by assuming that
-		// longer version strings are later.
-		if len(x.version) <= len(v) {
-			return x.buildTags
-		}
-		if len(x.version) == len(v) && x.version <= v {
-			return x.buildTags
-		}
-	}
-	return tags[0].buildTags
-}
-
-// IsLocal reports whether data files are available locally.
-func IsLocal() bool {
-	dir, err := localReadmeFile()
-	if err != nil {
-		return false
-	}
-	if _, err = os.Stat(dir); err != nil {
-		return false
-	}
-	return true
-}
-
-// OpenUCDFile opens the requested UCD file. The file is specified relative to
-// the public Unicode root directory. It will call log.Fatal if there are any
-// errors.
-func OpenUCDFile(file string) io.ReadCloser {
-	return openUnicode(path.Join(*unicodeVersion, "ucd", file))
-}
-
-// OpenCLDRCoreZip opens the CLDR core zip file. It will call log.Fatal if there
-// are any errors.
-func OpenCLDRCoreZip() io.ReadCloser {
-	return OpenUnicodeFile("cldr", *cldrVersion, "core.zip")
-}
-
-// OpenUnicodeFile opens the requested file of the requested category from the
-// root of the Unicode data archive. The file is specified relative to the
-// public Unicode root directory. If version is "", it will use the default
-// Unicode version. It will call log.Fatal if there are any errors.
-func OpenUnicodeFile(category, version, file string) io.ReadCloser {
-	if version == "" {
-		version = UnicodeVersion()
-	}
-	return openUnicode(path.Join(category, version, file))
-}
-
-// OpenIANAFile opens the requested IANA file. The file is specified relative
-// to the IANA root, which is typically either http://www.iana.org or the
-// iana directory in the local mirror. It will call log.Fatal if there are any
-// errors.
-func OpenIANAFile(path string) io.ReadCloser {
-	return Open(*iana, "iana", path)
-}
-
-var (
-	dirMutex sync.Mutex
-	localDir string
-)
-
-const permissions = 0755
-
-func localReadmeFile() (string, error) {
-	p, err := build.Import("golang.org/x/text", "", build.FindOnly)
-	if err != nil {
-		return "", fmt.Errorf("Could not locate package: %v", err)
-	}
-	return filepath.Join(p.Dir, "DATA", "README"), nil
-}
-
-func getLocalDir() string {
-	dirMutex.Lock()
-	defer dirMutex.Unlock()
-
-	readme, err := localReadmeFile()
-	if err != nil {
-		log.Fatal(err)
-	}
-	dir := filepath.Dir(readme)
-	if _, err := os.Stat(readme); err != nil {
-		if err := os.MkdirAll(dir, permissions); err != nil {
-			log.Fatalf("Could not create directory: %v", err)
-		}
-		ioutil.WriteFile(readme, []byte(readmeTxt), permissions)
-	}
-	return dir
-}
-
-const readmeTxt = `Generated by golang.org/x/text/internal/gen. DO NOT EDIT.
-
-This directory contains downloaded files used to generate the various tables
-in the golang.org/x/text subrepo.
-
-Note that the language subtag repo (iana/assignments/language-subtag-registry)
-and all other times in the iana subdirectory are not versioned and will need
-to be periodically manually updated. The easiest way to do this is to remove
-the entire iana directory. This is mostly of concern when updating the language
-package.
-`
-
-// Open opens subdir/path if a local directory is specified and the file exists,
-// where subdir is a directory relative to the local root, or fetches it from
-// urlRoot/path otherwise. It will call log.Fatal if there are any errors.
-func Open(urlRoot, subdir, path string) io.ReadCloser {
-	file := filepath.Join(getLocalDir(), subdir, filepath.FromSlash(path))
-	return open(file, urlRoot, path)
-}
-
-func openUnicode(path string) io.ReadCloser {
-	file := filepath.Join(getLocalDir(), filepath.FromSlash(path))
-	return open(file, *url, path)
-}
-
-// TODO: automatically periodically update non-versioned files.
-
-func open(file, urlRoot, path string) io.ReadCloser {
-	if f, err := os.Open(file); err == nil {
-		return f
-	}
-	r := get(urlRoot, path)
-	defer r.Close()
-	b, err := ioutil.ReadAll(r)
-	if err != nil {
-		log.Fatalf("Could not download file: %v", err)
-	}
-	os.MkdirAll(filepath.Dir(file), permissions)
-	if err := ioutil.WriteFile(file, b, permissions); err != nil {
-		log.Fatalf("Could not create file: %v", err)
-	}
-	return ioutil.NopCloser(bytes.NewReader(b))
-}
-
-func get(root, path string) io.ReadCloser {
-	url := root + "/" + path
-	fmt.Printf("Fetching %s...", url)
-	defer fmt.Println(" done.")
-	resp, err := http.Get(url)
-	if err != nil {
-		log.Fatalf("HTTP GET: %v", err)
-	}
-	if resp.StatusCode != 200 {
-		log.Fatalf("Bad GET status for %q: %q", url, resp.Status)
-	}
-	return resp.Body
-}
-
-// TODO: use Write*Version in all applicable packages.
-
-// WriteUnicodeVersion writes a constant for the Unicode version from which the
-// tables are generated.
-func WriteUnicodeVersion(w io.Writer) {
-	fmt.Fprintf(w, "// UnicodeVersion is the Unicode version from which the tables in this package are derived.\n")
-	fmt.Fprintf(w, "const UnicodeVersion = %q\n\n", UnicodeVersion())
-}
-
-// WriteCLDRVersion writes a constant for the CLDR version from which the
-// tables are generated.
-func WriteCLDRVersion(w io.Writer) {
-	fmt.Fprintf(w, "// CLDRVersion is the CLDR version from which the tables in this package are derived.\n")
-	fmt.Fprintf(w, "const CLDRVersion = %q\n\n", CLDRVersion())
-}
-
-// WriteGoFile prepends a standard file comment and package statement to the
-// given bytes, applies gofmt, and writes them to a file with the given name.
-// It will call log.Fatal if there are any errors.
-func WriteGoFile(filename, pkg string, b []byte) {
-	w, err := os.Create(filename)
-	if err != nil {
-		log.Fatalf("Could not create file %s: %v", filename, err)
-	}
-	defer w.Close()
-	if _, err = WriteGo(w, pkg, "", b); err != nil {
-		log.Fatalf("Error writing file %s: %v", filename, err)
-	}
-}
-
-func insertVersion(filename, version string) string {
-	suffix := ".go"
-	if strings.HasSuffix(filename, "_test.go") {
-		suffix = "_test.go"
-	}
-	return fmt.Sprint(filename[:len(filename)-len(suffix)], version, suffix)
-}
-
-// WriteVersionedGoFile prepends a standard file comment, adds build tags to
-// version the file for the current Unicode version, and package statement to
-// the given bytes, applies gofmt, and writes them to a file with the given
-// name. It will call log.Fatal if there are any errors.
-func WriteVersionedGoFile(filename, pkg string, b []byte) {
-	tags := buildTags()
-	if tags != "" {
-		filename = insertVersion(filename, UnicodeVersion())
-	}
-	w, err := os.Create(filename)
-	if err != nil {
-		log.Fatalf("Could not create file %s: %v", filename, err)
-	}
-	defer w.Close()
-	if _, err = WriteGo(w, pkg, tags, b); err != nil {
-		log.Fatalf("Error writing file %s: %v", filename, err)
-	}
-}
-
-// WriteGo prepends a standard file comment and package statement to the given
-// bytes, applies gofmt, and writes them to w.
-func WriteGo(w io.Writer, pkg, tags string, b []byte) (n int, err error) {
-	src := []byte(header)
-	if tags != "" {
-		src = append(src, fmt.Sprintf("// +build %s\n\n", tags)...)
-	}
-	src = append(src, fmt.Sprintf("package %s\n\n", pkg)...)
-	src = append(src, b...)
-	formatted, err := format.Source(src)
-	if err != nil {
-		// Print the generated code even in case of an error so that the
-		// returned error can be meaningfully interpreted.
-		n, _ = w.Write(src)
-		return n, err
-	}
-	return w.Write(formatted)
-}
-
-// Repackage rewrites a Go file from belonging to package main to belonging to
-// the given package.
-func Repackage(inFile, outFile, pkg string) {
-	src, err := ioutil.ReadFile(inFile)
-	if err != nil {
-		log.Fatalf("reading %s: %v", inFile, err)
-	}
-	const toDelete = "package main\n\n"
-	i := bytes.Index(src, []byte(toDelete))
-	if i < 0 {
-		log.Fatalf("Could not find %q in %s.", toDelete, inFile)
-	}
-	w := &bytes.Buffer{}
-	w.Write(src[i+len(toDelete):])
-	WriteGoFile(outFile, pkg, w.Bytes())
-}