bump dependencies for i18n

15 files changed, 1498 insertions, 0 deletions

diff --git a/vendor/github.com/nicksnyder/go-i18n/LICENSE b/vendor/github.com/nicksnyder/go-i18n/LICENSE
new file mode 100644
index 000000000..609cce797
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 Nick Snyder https://github.com/nicksnyder
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/i18n/bundle.go b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/bundle.go
new file mode 100644
index 000000000..2a8faaf23
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/bundle.go
@@ -0,0 +1,129 @@
+package i18n
+
+import (
+	"fmt"
+	"io/ioutil"
+
+	"github.com/nicksnyder/go-i18n/v2/internal"
+	"github.com/nicksnyder/go-i18n/v2/internal/plural"
+
+	"golang.org/x/text/language"
+)
+
+// UnmarshalFunc unmarshals data into v.
+type UnmarshalFunc = internal.UnmarshalFunc
+
+// Bundle stores a set of messages and pluralization rules.
+// Most applications only need a single bundle
+// that is initialized early in the application's lifecycle.
+type Bundle struct {
+	// DefaultLanguage is the default language of the bundle.
+	DefaultLanguage language.Tag
+
+	// UnmarshalFuncs is a map of file extensions to UnmarshalFuncs.
+	UnmarshalFuncs map[string]UnmarshalFunc
+
+	messageTemplates map[language.Tag]map[string]*internal.MessageTemplate
+	pluralRules      plural.Rules
+	tags             []language.Tag
+	matcher          language.Matcher
+}
+
+func (b *Bundle) init() {
+	if b.pluralRules == nil {
+		b.pluralRules = plural.DefaultRules()
+	}
+	b.addTag(b.DefaultLanguage)
+}
+
+// RegisterUnmarshalFunc registers an UnmarshalFunc for format.
+func (b *Bundle) RegisterUnmarshalFunc(format string, unmarshalFunc UnmarshalFunc) {
+	if b.UnmarshalFuncs == nil {
+		b.UnmarshalFuncs = make(map[string]UnmarshalFunc)
+	}
+	b.UnmarshalFuncs[format] = unmarshalFunc
+}
+
+// LoadMessageFile loads the bytes from path
+// and then calls ParseMessageFileBytes.
+func (b *Bundle) LoadMessageFile(path string) (*MessageFile, error) {
+	buf, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	return b.ParseMessageFileBytes(buf, path)
+}
+
+// MustLoadMessageFile is similar to LoadTranslationFile
+// except it panics if an error happens.
+func (b *Bundle) MustLoadMessageFile(path string) {
+	if _, err := b.LoadMessageFile(path); err != nil {
+		panic(err)
+	}
+}
+
+// MessageFile represents a parsed message file.
+type MessageFile = internal.MessageFile
+
+// ParseMessageFileBytes parses the bytes in buf to add translations to the bundle.
+//
+// The format of the file is everything after the last ".".
+//
+// The language tag of the file is everything after the second to last "." or after the last path separator, but before the format.
+func (b *Bundle) ParseMessageFileBytes(buf []byte, path string) (*MessageFile, error) {
+	messageFile, err := internal.ParseMessageFileBytes(buf, path, b.UnmarshalFuncs)
+	if err != nil {
+		return nil, err
+	}
+	if err := b.AddMessages(messageFile.Tag, messageFile.Messages...); err != nil {
+		return nil, err
+	}
+	return messageFile, nil
+}
+
+// MustParseMessageFileBytes is similar to ParseMessageFileBytes
+// except it panics if an error happens.
+func (b *Bundle) MustParseMessageFileBytes(buf []byte, path string) {
+	if _, err := b.ParseMessageFileBytes(buf, path); err != nil {
+		panic(err)
+	}
+}
+
+// AddMessages adds messages for a language.
+// It is useful if your messages are in a format not supported by ParseMessageFileBytes.
+func (b *Bundle) AddMessages(tag language.Tag, messages ...*Message) error {
+	b.init()
+	pluralRule := b.pluralRules.Rule(tag)
+	if pluralRule == nil {
+		return fmt.Errorf("no plural rule registered for %s", tag)
+	}
+	if b.messageTemplates == nil {
+		b.messageTemplates = map[language.Tag]map[string]*internal.MessageTemplate{}
+	}
+	if b.messageTemplates[tag] == nil {
+		b.messageTemplates[tag] = map[string]*internal.MessageTemplate{}
+		b.addTag(tag)
+	}
+	for _, m := range messages {
+		b.messageTemplates[tag][m.ID] = internal.NewMessageTemplate(m)
+	}
+	return nil
+}
+
+// MustAddMessages is similar to AddMessages except it panics if an error happens.
+func (b *Bundle) MustAddMessages(tag language.Tag, messages ...*Message) {
+	if err := b.AddMessages(tag, messages...); err != nil {
+		panic(err)
+	}
+}
+
+func (b *Bundle) addTag(tag language.Tag) {
+	for _, t := range b.tags {
+		if t == tag {
+			// Tag already exists
+			return
+		}
+	}
+	b.tags = append(b.tags, tag)
+	b.matcher = language.NewMatcher(b.tags)
+}
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/i18n/doc.go b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/doc.go
new file mode 100644
index 000000000..7b56a7172
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/doc.go
@@ -0,0 +1,21 @@
+// Package i18n provides support for looking up messages
+// according to a set of locale preferences.
+//
+// Create a Bundle to use for the lifetime of your application.
+//     bundle := &i18n.Bundle{DefaultLanguage: language.English}
+//
+// Create a Localizer to use for a set of language preferences.
+//     func(w http.ResponseWriter, r *http.Request) {
+//         lang := r.FormValue("lang")
+//         accept := r.Header.Get("Accept-Language")
+//         localizer := i18n.NewLocalizer(bundle, lang, accept)
+//     }
+//
+// Use the Localizer to lookup messages.
+//     localizer.MustLocalize(&i18n.LocalizeConfig{
+// 	        DefaultMessage: &i18n.Message{
+// 	            ID: "HelloWorld",
+// 	            Other: "Hello World!",
+// 	        },
+//     })
+package i18n
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/i18n/localizer.go b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/localizer.go
new file mode 100644
index 000000000..f9d516fa6
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/localizer.go
@@ -0,0 +1,198 @@
+package i18n
+
+import (
+	"fmt"
+
+	"text/template"
+
+	"github.com/nicksnyder/go-i18n/v2/internal"
+	"github.com/nicksnyder/go-i18n/v2/internal/plural"
+	"golang.org/x/text/language"
+)
+
+// Localizer provides Localize and MustLocalize methods that return localized messages.
+type Localizer struct {
+	// bundle contains the messages that can be returned by the Localizer.
+	bundle *Bundle
+
+	// tags is the list of language tags that the Localizer checks
+	// in order when localizing a message.
+	tags []language.Tag
+}
+
+// NewLocalizer returns a new Localizer that looks up messages
+// in the bundle according to the language preferences in langs.
+// It can parse Accept-Language headers as defined in http://www.ietf.org/rfc/rfc2616.txt.
+func NewLocalizer(bundle *Bundle, langs ...string) *Localizer {
+	bundle.init()
+	return &Localizer{
+		bundle: bundle,
+		tags:   parseTags(langs),
+	}
+}
+
+func parseTags(langs []string) []language.Tag {
+	tags := []language.Tag{}
+	for _, lang := range langs {
+		t, _, err := language.ParseAcceptLanguage(lang)
+		if err != nil {
+			continue
+		}
+		tags = append(tags, t...)
+	}
+	return tags
+}
+
+// LocalizeConfig configures a call to the Localize method on Localizer.
+type LocalizeConfig struct {
+	// MessageID is the id of the message to lookup.
+	// This field is ignored if DefaultMessage is set.
+	MessageID string
+
+	// TemplateData is the data passed when executing the message's template.
+	// If TemplateData is nil and PluralCount is not nil, then the message template
+	// will be executed with data that contains the plural count.
+	TemplateData interface{}
+
+	// PluralCount determines which plural form of the message is used.
+	PluralCount interface{}
+
+	// DefaultMessage is used if the message is not found in any message files.
+	DefaultMessage *Message
+
+	// Funcs is used to extend the Go template engines built in functions
+	Funcs template.FuncMap
+}
+
+type invalidPluralCountErr struct {
+	messageID   string
+	pluralCount interface{}
+	err         error
+}
+
+func (e *invalidPluralCountErr) Error() string {
+	return fmt.Sprintf("invalid plural count %#v for message id %q: %s", e.pluralCount, e.messageID, e.err)
+}
+
+type messageNotFoundErr struct {
+	messageID string
+}
+
+func (e *messageNotFoundErr) Error() string {
+	return fmt.Sprintf("message %q not found", e.messageID)
+}
+
+type pluralizeErr struct {
+	messageID string
+	tag       language.Tag
+}
+
+func (e *pluralizeErr) Error() string {
+	return fmt.Sprintf("unable to pluralize %q because there no plural rule for %q", e.messageID, e.tag)
+}
+
+// Localize returns a localized message.
+func (l *Localizer) Localize(lc *LocalizeConfig) (string, error) {
+	messageID := lc.MessageID
+	if lc.DefaultMessage != nil {
+		messageID = lc.DefaultMessage.ID
+	}
+
+	var operands *plural.Operands
+	templateData := lc.TemplateData
+	if lc.PluralCount != nil {
+		var err error
+		operands, err = plural.NewOperands(lc.PluralCount)
+		if err != nil {
+			return "", &invalidPluralCountErr{messageID: messageID, pluralCount: lc.PluralCount, err: err}
+		}
+		if templateData == nil {
+			templateData = map[string]interface{}{
+				"PluralCount": lc.PluralCount,
+			}
+		}
+	}
+	tag, template := l.getTemplate(messageID, lc.DefaultMessage)
+	if template == nil {
+		return "", &messageNotFoundErr{messageID: messageID}
+	}
+	pluralForm := l.pluralForm(tag, operands)
+	if pluralForm == plural.Invalid {
+		return "", &pluralizeErr{messageID: messageID, tag: tag}
+	}
+	return template.Execute(pluralForm, templateData, lc.Funcs)
+}
+
+func (l *Localizer) getTemplate(id string, defaultMessage *Message) (language.Tag, *internal.MessageTemplate) {
+	// Fast path.
+	// Optimistically assume this message id is defined in each language.
+	fastTag, template := l.matchTemplate(id, l.bundle.matcher, l.bundle.tags)
+	if template != nil {
+		return fastTag, template
+	}
+	if fastTag == l.bundle.DefaultLanguage {
+		if defaultMessage == nil {
+			return fastTag, nil
+		}
+		return fastTag, internal.NewMessageTemplate(defaultMessage)
+	}
+	if len(l.bundle.tags) > 1 {
+		// Slow path.
+		// We didn't find a translation for the tag suggested by the default matcher
+		// so we need to create a new matcher that contains only the tags in the bundle
+		// that have this message.
+		foundTags := make([]language.Tag, 0, len(l.bundle.messageTemplates))
+		if l.bundle.DefaultLanguage != fastTag {
+			foundTags = append(foundTags, l.bundle.DefaultLanguage)
+		}
+		for t, templates := range l.bundle.messageTemplates {
+			if t == fastTag {
+				// We already tried this tag in the fast path
+				continue
+			}
+			template := templates[id]
+			if template == nil || template.Other == "" {
+				continue
+			}
+			foundTags = append(foundTags, t)
+		}
+		tag, template := l.matchTemplate(id, language.NewMatcher(foundTags), foundTags)
+		if template != nil {
+			return tag, template
+		}
+	}
+	if defaultMessage == nil {
+		return l.bundle.DefaultLanguage, nil
+	}
+	return l.bundle.DefaultLanguage, internal.NewMessageTemplate(defaultMessage)
+}
+
+func (l *Localizer) matchTemplate(id string, matcher language.Matcher, tags []language.Tag) (language.Tag, *internal.MessageTemplate) {
+	_, i, _ := matcher.Match(l.tags...)
+	tag := tags[i]
+	templates := l.bundle.messageTemplates[tag]
+	if templates != nil && templates[id] != nil {
+		return tag, templates[id]
+	}
+	return tag, nil
+}
+
+func (l *Localizer) pluralForm(tag language.Tag, operands *plural.Operands) plural.Form {
+	if operands == nil {
+		return plural.Other
+	}
+	pluralRule := l.bundle.pluralRules.Rule(tag)
+	if pluralRule == nil {
+		return plural.Invalid
+	}
+	return pluralRule.PluralFormFunc(operands)
+}
+
+// MustLocalize is similar to Localize, except it panics if an error happens.
+func (l *Localizer) MustLocalize(lc *LocalizeConfig) string {
+	localized, err := l.Localize(lc)
+	if err != nil {
+		panic(err)
+	}
+	return localized
+}
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/i18n/message.go b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/message.go
new file mode 100644
index 000000000..7c881a6b4
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/i18n/message.go
@@ -0,0 +1,6 @@
+package i18n
+
+import "github.com/nicksnyder/go-i18n/v2/internal"
+
+// Message is a string that can be localized.
+type Message = internal.Message
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/message.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/message.go
new file mode 100644
index 000000000..592ec363e
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/message.go
@@ -0,0 +1,164 @@
+package internal
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Message is a string that can be localized.
+type Message struct {
+	// ID uniquely identifies the message.
+	ID string
+
+	// Hash uniquely identifies the content of the message
+	// that this message was translated from.
+	Hash string
+
+	// Description describes the message to give additional
+	// context to translators that may be relevant for translation.
+	Description string
+
+	// LeftDelim is the left Go template delimiter.
+	LeftDelim string
+
+	// RightDelim is the right Go template delimiter.``
+	RightDelim string
+
+	// Zero is the content of the message for the CLDR plural form "zero".
+	Zero string
+
+	// One is the content of the message for the CLDR plural form "one".
+	One string
+
+	// Two is the content of the message for the CLDR plural form "two".
+	Two string
+
+	// Few is the content of the message for the CLDR plural form "few".
+	Few string
+
+	// Many is the content of the message for the CLDR plural form "many".
+	Many string
+
+	// Other is the content of the message for the CLDR plural form "other".
+	Other string
+}
+
+// NewMessage parses data and returns a new message.
+func NewMessage(data interface{}) (*Message, error) {
+	m := &Message{}
+	if err := m.unmarshalInterface(data); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// MustNewMessage is similar to NewMessage except it panics if an error happens.
+func MustNewMessage(data interface{}) *Message {
+	m, err := NewMessage(data)
+	if err != nil {
+		panic(err)
+	}
+	return m
+}
+
+// unmarshalInterface unmarshals a message from data.
+func (m *Message) unmarshalInterface(v interface{}) error {
+	strdata, err := stringMap(v)
+	if err != nil {
+		return err
+	}
+	for k, v := range strdata {
+		switch strings.ToLower(k) {
+		case "id":
+			m.ID = v
+		case "description":
+			m.Description = v
+		case "hash":
+			m.Hash = v
+		case "leftDelim":
+			m.LeftDelim = v
+		case "rightDelim":
+			m.RightDelim = v
+		case "zero":
+			m.Zero = v
+		case "one":
+			m.One = v
+		case "two":
+			m.Two = v
+		case "few":
+			m.Few = v
+		case "many":
+			m.Many = v
+		case "other":
+			m.Other = v
+		}
+	}
+	return nil
+}
+
+func stringMap(v interface{}) (map[string]string, error) {
+	switch value := v.(type) {
+	case string:
+		return map[string]string{
+			"other": value,
+		}, nil
+	case map[string]string:
+		return value, nil
+	case map[string]interface{}:
+		strdata := map[string]string{}
+		for k, v := range value {
+			if k == "translation" {
+				switch vt := v.(type) {
+				case string:
+					strdata["other"] = vt
+				default:
+					v1Message, err := stringMap(v)
+					if err != nil {
+						return nil, err
+					}
+					for kk, vv := range v1Message {
+						strdata[kk] = vv
+					}
+				}
+				continue
+			}
+			vstr, ok := v.(string)
+			if !ok {
+				return nil, fmt.Errorf("expected value for key %q be a string but got %#v", k, v)
+			}
+			strdata[k] = vstr
+		}
+		return strdata, nil
+	case map[interface{}]interface{}:
+		strdata := map[string]string{}
+		for k, v := range value {
+			kstr, ok := k.(string)
+			if !ok {
+				return nil, fmt.Errorf("expected key to be a string but got %#v", k)
+			}
+			if kstr == "translation" {
+				switch vt := v.(type) {
+				case string:
+					strdata["other"] = vt
+				default:
+					v1Message, err := stringMap(v)
+					if err != nil {
+						return nil, err
+					}
+					for kk, vv := range v1Message {
+						strdata[kk] = vv
+					}
+				}
+				continue
+			}
+			vstr, ok := v.(string)
+			if !ok {
+				return nil, fmt.Errorf("expected value for key %q be a string but got %#v", k, v)
+			}
+			strdata[kstr] = vstr
+		}
+		return strdata, nil
+	default:
+		return nil, fmt.Errorf("unsupported type %#v", value)
+	}
+}
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/message_template.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/message_template.go
new file mode 100644
index 000000000..03aed6f39
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/message_template.go
@@ -0,0 +1,55 @@
+package internal
+
+import (
+	"bytes"
+
+	"text/template"
+
+	"github.com/nicksnyder/go-i18n/v2/internal/plural"
+)
+
+// MessageTemplate is an executable template for a message.
+type MessageTemplate struct {
+	*Message
+	PluralTemplates map[plural.Form]*Template
+}
+
+// NewMessageTemplate returns a new message template.
+func NewMessageTemplate(m *Message) *MessageTemplate {
+	pluralTemplates := map[plural.Form]*Template{}
+	setPluralTemplate(pluralTemplates, plural.Zero, m.Zero)
+	setPluralTemplate(pluralTemplates, plural.One, m.One)
+	setPluralTemplate(pluralTemplates, plural.Two, m.Two)
+	setPluralTemplate(pluralTemplates, plural.Few, m.Few)
+	setPluralTemplate(pluralTemplates, plural.Many, m.Many)
+	setPluralTemplate(pluralTemplates, plural.Other, m.Other)
+	if len(pluralTemplates) == 0 {
+		return nil
+	}
+	return &MessageTemplate{
+		Message:         m,
+		PluralTemplates: pluralTemplates,
+	}
+}
+
+func setPluralTemplate(pluralTemplates map[plural.Form]*Template, pluralForm plural.Form, src string) {
+	if src != "" {
+		pluralTemplates[pluralForm] = &Template{Src: src}
+	}
+}
+
+// Execute executes the template for the plural form and template data.
+func (mt *MessageTemplate) Execute(pluralForm plural.Form, data interface{}, funcs template.FuncMap) (string, error) {
+	t := mt.PluralTemplates[pluralForm]
+	if err := t.parse(mt.LeftDelim, mt.RightDelim, funcs); err != nil {
+		return "", err
+	}
+	if t.Template == nil {
+		return t.Src, nil
+	}
+	var buf bytes.Buffer
+	if err := t.Template.Execute(&buf, data); err != nil {
+		return "", err
+	}
+	return buf.String(), nil
+}
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/parse.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/parse.go
new file mode 100644
index 000000000..a5cee87c6
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/parse.go
@@ -0,0 +1,112 @@
+package internal
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"golang.org/x/text/language"
+)
+
+// UnmarshalFunc unmarshals data into v.
+type UnmarshalFunc func(data []byte, v interface{}) error
+
+// MessageFile represents a parsed message file.
+type MessageFile struct {
+	Path     string
+	Tag      language.Tag
+	Format   string
+	Messages []*Message
+}
+
+// ParseMessageFileBytes returns the messages parsed from file.
+func ParseMessageFileBytes(buf []byte, path string, unmarshalFuncs map[string]UnmarshalFunc) (*MessageFile, error) {
+	lang, format := parsePath(path)
+	tag := language.Make(lang)
+	messageFile := &MessageFile{
+		Path:   path,
+		Tag:    tag,
+		Format: format,
+	}
+	if len(buf) == 0 {
+		return messageFile, nil
+	}
+	unmarshalFunc := unmarshalFuncs[messageFile.Format]
+	if unmarshalFunc == nil {
+		if messageFile.Format == "json" {
+			unmarshalFunc = json.Unmarshal
+		} else {
+			return nil, fmt.Errorf("no unmarshaler registered for %s", messageFile.Format)
+		}
+	}
+	var raw interface{}
+	if err := unmarshalFunc(buf, &raw); err != nil {
+		return nil, err
+	}
+	switch data := raw.(type) {
+	case map[string]interface{}:
+		messageFile.Messages = make([]*Message, 0, len(data))
+		for id, data := range data {
+			m, err := NewMessage(data)
+			if err != nil {
+				return nil, err
+			}
+			m.ID = id
+			messageFile.Messages = append(messageFile.Messages, m)
+		}
+	case map[interface{}]interface{}:
+		messageFile.Messages = make([]*Message, 0, len(data))
+		for id, data := range data {
+			strid, ok := id.(string)
+			if !ok {
+				return nil, fmt.Errorf("expected key to be string but got %#v", id)
+			}
+			m, err := NewMessage(data)
+			if err != nil {
+				return nil, err
+			}
+			m.ID = strid
+			messageFile.Messages = append(messageFile.Messages, m)
+		}
+	case []interface{}:
+		// Backward compatibility for v1 file format.
+		messageFile.Messages = make([]*Message, 0, len(data))
+		for _, data := range data {
+			m, err := NewMessage(data)
+			if err != nil {
+				return nil, err
+			}
+			messageFile.Messages = append(messageFile.Messages, m)
+		}
+	default:
+		return nil, fmt.Errorf("unsupported file format %T", raw)
+	}
+	return messageFile, nil
+}
+
+func parsePath(path string) (langTag, format string) {
+	formatStartIdx := -1
+	for i := len(path) - 1; i >= 0; i-- {
+		c := path[i]
+		if os.IsPathSeparator(c) {
+			if formatStartIdx != -1 {
+				langTag = path[i+1 : formatStartIdx]
+			}
+			return
+		}
+		if path[i] == '.' {
+			if formatStartIdx != -1 {
+				langTag = path[i+1 : formatStartIdx]
+				return
+			}
+			if formatStartIdx == -1 {
+				format = path[i+1:]
+				formatStartIdx = i
+			}
+		}
+	}
+	if formatStartIdx != -1 {
+		langTag = path[:formatStartIdx]
+	}
+	return
+}
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/doc.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/doc.go
new file mode 100644
index 000000000..c2a71d53e
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/doc.go
@@ -0,0 +1,3 @@
+// Package plural provides support for pluralizing messages
+// according to CLDR rules http://cldr.unicode.org/index/cldr-spec/plural-rules
+package plural
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/form.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/form.go
new file mode 100644
index 000000000..287a87f22
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/form.go
@@ -0,0 +1,16 @@
+package plural
+
+// Form represents a language pluralization form as defined here:
+// http://cldr.unicode.org/index/cldr-spec/plural-rules
+type Form string
+
+// All defined plural forms.
+const (
+	Invalid Form = ""
+	Zero    Form = "zero"
+	One     Form = "one"
+	Two     Form = "two"
+	Few     Form = "few"
+	Many    Form = "many"
+	Other   Form = "other"
+)
diff --git a/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/operands.go b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/operands.go
new file mode 100644
index 000000000..4d2972659
--- /dev/null
+++ b/vendor/github.com/nicksnyder/go-i18n/v2/internal/plural/operands.go
@@ -0,0 +1,120 @@
+package plural
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Operands is a representation of http://unicode.org/reports/tr35/tr35-numbers.html#Operands
+type Operands struct {
+	N float64 // absolute value of the source number (integer and decimals)
+	I int64   // integer digits of n
+	V int64   // number of visible fraction digits in n, with trailing zeros
+	W int64   // number of visible fraction digits in n, without trailing zeros
+	F int64   // visible fractional digits in n, with trailing zeros
+	T int64   // visible fractional digits in n, without trailing zeros
+}
+
+// NEqualsAny returns true if o represents an integer equal to any of the arguments.
+func (o *Operands) NEqualsAny(any ...int64) bool {
+	for _, i := range any {
+		if o.I == i && o.T == 0 {
+			return true
+		}
+	}
+	return false
+}
+
+// NModEqualsAny returns true if o represents an integer equal to any of the arguments modulo mod.
+func (o *Operands) NModEqualsAny(mod int64, any ...int64) bool {
+	modI := o.I % mod
+	for _, i := range any {
+		if modI == i && o.T == 0 {
+			return true
+		}
+	}
+	return false
+}
+
+// NInRange returns true if o represents an integer in the closed interval [from, to].
+func (o *Operands) NInRange(from, to int64) bool {
+	return o.T == 0 && from <= o.I && o.I <= to
+}
+
+// NModInRange returns true if o represents an integer in the closed interval [from, to] modulo mod.
+func (o *Operands) NModInRange(mod, from, to int64) bool {
+	modI := o.I % mod
+	return o.T == 0 && from <= modI && modI <= to
+}
+
+// NewOperands returns the operands for number.
+func NewOperands(number interface{}) (*Operands, error) {
+	switch number := number.(type) {
+	case int:
+		return newOperandsInt64(int64(number)), nil
+	case int8:
+		return newOperandsInt64(int64(number)), nil
+	case int16:
+		return newOperandsInt64(int64(number)), nil
+	case int32:
+		return newOperandsInt64(int64(nu