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Refactor for more flexibility

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* Move from gcfg to toml configuration because gcfg was too restrictive
* Implemented gateway which has support multiple in and out bridges.
* Allow for bridging the same bridges, which means eg you can now bridge between multiple mattermosts.
* Support multiple gateways
This commit is contained in:
Wim 2016-09-18 19:21:15 +02:00
parent 6e410b096e
commit 7baf386ede
40 changed files with 3816 additions and 2292 deletions
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149
bridge/bridge.go
View File

@ -1,151 +1,40 @@
package bridge
import (
//"fmt"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/gitter"
"github.com/42wim/matterbridge/bridge/irc"
"github.com/42wim/matterbridge/bridge/mattermost"
"github.com/42wim/matterbridge/bridge/slack"
"github.com/42wim/matterbridge/bridge/xmpp"
log "github.com/Sirupsen/logrus"
"strings"
)
type Bridge struct {
*config.Config
Source string
Bridges []Bridger
Channels []map[string]string
ignoreNicks map[string][]string
}
type Bridger interface {
type Bridge interface {
Send(msg config.Message) error
Name() string
Connect() error
//Command(cmd string) string
FullOrigin() string
Origin() string
Protocol() string
JoinChannel(channel string) error
}
func NewBridge(cfg *config.Config) error {
c := make(chan config.Message)
b := &Bridge{}
b.Config = cfg
if cfg.IRC.Enable {
b.Bridges = append(b.Bridges, birc.New(cfg, c))
}
if cfg.Mattermost.Enable {
b.Bridges = append(b.Bridges, bmattermost.New(cfg, c))
}
if cfg.Xmpp.Enable {
b.Bridges = append(b.Bridges, bxmpp.New(cfg, c))
}
if cfg.Gitter.Enable {
b.Bridges = append(b.Bridges, bgitter.New(cfg, c))
}
if cfg.Slack.Enable {
b.Bridges = append(b.Bridges, bslack.New(cfg, c))
}
if len(b.Bridges) < 2 {
log.Fatalf("only %d sections enabled. Need at least 2 sections enabled (eg [IRC] and [mattermost]", len(b.Bridges))
}
for _, br := range b.Bridges {
br.Connect()
}
b.mapChannels()
b.mapIgnores()
b.handleReceive(c)
return nil
}
func (b *Bridge) handleReceive(c chan config.Message) {
for {
select {
case msg := <-c:
for _, br := range b.Bridges {
b.handleMessage(msg, br)
}
}
}
}
func (b *Bridge) mapChannels() error {
for _, val := range b.Config.Channel {
m := make(map[string]string)
m["irc"] = val.IRC
m["mattermost"] = val.Mattermost
m["xmpp"] = val.Xmpp
m["gitter"] = val.Gitter
m["slack"] = val.Slack
b.Channels = append(b.Channels, m)
}
return nil
}
func (b *Bridge) mapIgnores() {
m := make(map[string][]string)
m["irc"] = strings.Fields(b.Config.IRC.IgnoreNicks)
m["mattermost"] = strings.Fields(b.Config.Mattermost.IgnoreNicks)
m["xmpp"] = strings.Fields(b.Config.Xmpp.IgnoreNicks)
m["gitter"] = strings.Fields(b.Config.Gitter.IgnoreNicks)
m["slack"] = strings.Fields(b.Config.Slack.IgnoreNicks)
b.ignoreNicks = m
}
func (b *Bridge) getDestChannel(msg *config.Message, dest string) string {
for _, v := range b.Channels {
if v[msg.Origin] == msg.Channel {
return v[dest]
}
}
return ""
}
func (b *Bridge) handleMessage(msg config.Message, dest Bridger) {
if b.ignoreMessage(&msg) {
return
}
if dest.Name() != msg.Origin {
msg.Channel = b.getDestChannel(&msg, dest.Name())
if msg.Channel == "" {
return
}
b.modifyMessage(&msg, dest.Name())
log.Debugf("sending %#v from %s to %s", msg, msg.Origin, dest.Name())
dest.Send(msg)
}
}
func (b *Bridge) ignoreMessage(msg *config.Message) bool {
// should we discard messages ?
for _, entry := range b.ignoreNicks[msg.Origin] {
if msg.Username == entry {
return true
}
}
return false
}
func setNickFormat(msg *config.Message, format string) {
if format == "" {
msg.Username = msg.Origin + "-" + msg.Username + ": "
return
}
msg.Username = strings.Replace(format, "{NICK}", msg.Username, -1)
msg.Username = strings.Replace(msg.Username, "{BRIDGE}", msg.Origin, -1)
}
func (b *Bridge) modifyMessage(msg *config.Message, dest string) {
switch dest {
case "irc":
setNickFormat(msg, b.Config.IRC.RemoteNickFormat)
case "gitter":
setNickFormat(msg, b.Config.Gitter.RemoteNickFormat)
case "xmpp":
setNickFormat(msg, b.Config.Xmpp.RemoteNickFormat)
func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) Bridge {
accInfo := strings.Split(bridge.Account, ".")
protocol := accInfo[0]
name := accInfo[1]
switch protocol {
case "mattermost":
setNickFormat(msg, b.Config.Mattermost.RemoteNickFormat)
return bmattermost.New(cfg.Mattermost[name], name, c)
case "irc":
return birc.New(cfg.IRC[name], name, c)
case "gitter":
return bgitter.New(cfg.Gitter[name], name, c)
case "slack":
setNickFormat(msg, b.Config.Slack.RemoteNickFormat)
return bslack.New(cfg.Slack[name], name, c)
case "xmpp":
return bxmpp.New(cfg.Xmpp[name], name, c)
}
return nil
}

136
bridge/config/config.go
View File

@ -1,8 +1,7 @@
package config
import (
"gopkg.in/gcfg.v1"
"io/ioutil"
"github.com/BurntSushi/toml"
"log"
)
@ -11,97 +10,64 @@ type Message struct {
Channel string
Username string
Origin string
FullOrigin string
Protocol string
}
type Protocol struct {
BindAddress string // mattermost, slack
IconURL string // mattermost, slack
IgnoreNicks string // all protocols
Jid string // xmpp
Login string // mattermost
Muc string // xmpp
Name string // all protocols
Nick string // all protocols
NickFormatter string // mattermost, slack
NickServNick string // IRC
NickServPassword string // IRC
NicksPerRow int // mattermost, slack
NoTLS bool // mattermost
Password string // IRC,mattermost,XMPP
PrefixMessagesWithNick bool // mattemost, slack
Protocol string //all protocols
RemoteNickFormat string // all protocols
Server string // IRC,mattermost,XMPP
ShowJoinPart bool // all protocols
SkipTLSVerify bool // IRC, mattermost
Team string // mattermost
Token string // gitter, slack
URL string // mattermost, slack
UseAPI bool // mattermost, slack
UseSASL bool // IRC
UseTLS bool // IRC
}
type Bridge struct {
Account string
Channel string
}
type Gateway struct {
Name string
Enable bool
In []Bridge
Out []Bridge
}
type Config struct {
IRC struct {
UseTLS bool
UseSASL bool
SkipTLSVerify bool
Server string
Nick string
Password string
Channel string
NickServNick string
NickServPassword string
RemoteNickFormat string
IgnoreNicks string
Enable bool
}
Gitter struct {
Enable bool
IgnoreNicks string
Nick string
RemoteNickFormat string
Token string
}
Mattermost struct {
URL string
ShowJoinPart bool
IconURL string
SkipTLSVerify bool
BindAddress string
Channel string
PrefixMessagesWithNick bool
NicksPerRow int
NickFormatter string
Server string
Team string
Login string
Password string
RemoteNickFormat string
IgnoreNicks string
NoTLS bool
Enable bool
}
Slack struct {
BindAddress string
Enable bool
IconURL string
IgnoreNicks string
NickFormatter string
NicksPerRow int
PrefixMessagesWithNick bool
RemoteNickFormat string
Token string
URL string
UseAPI bool
}
Xmpp struct {
IgnoreNicks string
Jid string
Password string
Server string
Muc string
Nick string
RemoteNickFormat string
Enable bool
}
Channel map[string]*struct {
IRC string
Mattermost string
Xmpp string
Gitter string
Slack string
}
General struct {
GiphyAPIKey string
Xmpp bool
Irc bool
Mattermost bool
Plus bool
}
IRC map[string]Protocol
Mattermost map[string]Protocol
Slack map[string]Protocol
Gitter map[string]Protocol
Xmpp map[string]Protocol
Gateway []Gateway
}
func NewConfig(cfgfile string) *Config {
var cfg Config
content, err := ioutil.ReadFile(cfgfile)
if err != nil {
if _, err := toml.DecodeFile("matterbridge.toml", &cfg); err != nil {
log.Fatal(err)
}
err = gcfg.ReadStringInto(&cfg, string(content))
if err != nil {
log.Fatal("Failed to parse "+cfgfile+":", err)
}
return &cfg
}

89
bridge/gitter/gitter.go
View File

@ -9,47 +9,90 @@ import (
type Bgitter struct {
c *gitter.Gitter
*config.Config
Config *config.Protocol
Remote chan config.Message
protocol string
origin string
Rooms []gitter.Room
}
type Message struct {
Text string
Channel string
Username string
}
var flog *log.Entry
var protocol = "gitter"
func init() {
flog = log.WithFields(log.Fields{"module": "gitter"})
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(config *config.Config, c chan config.Message) *Bgitter {
func New(config config.Protocol, origin string, c chan config.Message) *Bgitter {
b := &Bgitter{}
b.Config = config
b.Config = &config
b.Remote = c
b.protocol = protocol
b.origin = origin
return b
}
func (b *Bgitter) Connect() error {
var err error
flog.Info("Trying Gitter connection")
b.c = gitter.New(b.Config.Gitter.Token)
flog.Info("Trying " + b.protocol + " connection")
b.c = gitter.New(b.Config.Token)
_, err = b.c.GetUser()
if err != nil {
flog.Debugf("%#v", err)
return err
}
flog.Info("Connection succeeded")
b.setupChannels()
go b.handleGitter()
//b.setupChannels()
b.Rooms, _ = b.c.GetRooms()
//go b.handleGitter()
return nil
}
func (b *Bgitter) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *Bgitter) JoinChannel(channel string) error {
_, err := b.c.JoinRoom(channel)
if err != nil {
return err
}
room := channel
roomID := b.getRoomID(room)
if roomID == "" {
return nil
}
stream := b.c.Stream(roomID)
go b.c.Listen(stream)
go func(stream *gitter.Stream, room string) {
for {
event := <-stream.Event
switch ev := event.Data.(type) {
case *gitter.MessageReceived:
// check for ZWSP to see if it's not an echo
if !strings.HasSuffix(ev.Message.Text, "​") {
b.Remote <- config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room,
Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
case *gitter.GitterConnectionClosed:
flog.Errorf("connection with gitter closed for room %s", room)
}
}
}(stream, room)
return nil
}
func (b *Bgitter) Name() string {
return "gitter"
return b.protocol + "." + b.origin
}
func (b *Bgitter) Protocol() string {
return b.protocol
}
func (b *Bgitter) Origin() string {
return b.origin
}
func (b *Bgitter) Send(msg config.Message) error {
@ -71,6 +114,7 @@ func (b *Bgitter) getRoomID(channel string) string {
return ""
}
/*
func (b *Bgitter) handleGitter() {
for _, val := range b.Config.Channel {
room := val.Gitter
@ -88,7 +132,8 @@ func (b *Bgitter) handleGitter() {
case *gitter.MessageReceived:
// check for ZWSP to see if it's not an echo
if !strings.HasSuffix(ev.Message.Text, "​") {
b.Remote <- config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room, Origin: "gitter"}
b.Remote <- config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room,
Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
case *gitter.GitterConnectionClosed:
flog.Errorf("connection with gitter closed for room %s", room)
@ -97,14 +142,4 @@ func (b *Bgitter) handleGitter() {
}(stream, room)
}
}
func (b *Bgitter) setupChannels() {
b.Rooms, _ = b.c.GetRooms()
for _, val := range b.Config.Channel {
flog.Infof("Joining %s as %s", val.Gitter, b.Gitter.Nick)
_, err := b.c.JoinRoom(val.Gitter)
if err != nil {
log.Errorf("Joining %s failed", val.Gitter)
}
}
}
*/

116
bridge/irc/irc.go
View File

@ -12,35 +12,32 @@ import (
"time"
)
//type Bridge struct {
type Birc struct {
i *irc.Connection
ircNick string
ircMap map[string]string
name string
names map[string][]string
ircIgnoreNicks []string
*config.Config
Config *config.Protocol
origin string
protocol string
Remote chan config.Message
}
type FancyLog struct {
irc *log.Entry
}
var flog FancyLog
var flog *log.Entry
var protocol = "irc"
func init() {
flog.irc = log.WithFields(log.Fields{"module": "irc"})
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(config *config.Config, c chan config.Message) *Birc {
func New(config config.Protocol, origin string, c chan config.Message) *Birc {
b := &Birc{}
b.Config = config
b.Config = &config
b.Remote = c
b.ircNick = b.Config.IRC.Nick
b.ircMap = make(map[string]string)
b.protocol = protocol
b.ircNick = b.Config.Nick
b.origin = origin
b.names = make(map[string][]string)
b.ircIgnoreNicks = strings.Fields(b.Config.IRC.IgnoreNicks)
return b
}
@ -53,32 +50,49 @@ func (b *Birc) Command(msg *config.Message) string {
}
func (b *Birc) Connect() error {
flog.irc.Info("Trying IRC connection")
i := irc.IRC(b.Config.IRC.Nick, b.Config.IRC.Nick)
i.UseTLS = b.Config.IRC.UseTLS
i.UseSASL = b.Config.IRC.UseSASL
i.SASLLogin = b.Config.IRC.NickServNick
i.SASLPassword = b.Config.IRC.NickServPassword
i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.IRC.SkipTLSVerify}
if b.Config.IRC.Password != "" {
i.Password = b.Config.IRC.Password
flog.Info("Trying IRC connection")
i := irc.IRC(b.Config.Nick, b.Config.Nick)
i.UseTLS = b.Config.UseTLS
i.UseSASL = b.Config.UseSASL
i.SASLLogin = b.Config.NickServNick
i.SASLPassword = b.Config.NickServPassword
i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.SkipTLSVerify}
if b.Config.Password != "" {
i.Password = b.Config.Password
}
i.AddCallback(ircm.RPL_WELCOME, b.handleNewConnection)
err := i.Connect(b.Config.IRC.Server)
err := i.Connect(b.Config.Server)
if err != nil {
return err
}
flog.irc.Info("Connection succeeded")
flog.Info("Connection succeeded")
b.i = i
return nil
}
func (b *Birc) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *Birc) JoinChannel(channel string) error {
b.i.Join(channel)
return nil
}
func (b *Birc) Name() string {
return "irc"
return b.protocol + "." + b.origin
}
func (b *Birc) Protocol() string {
return b.protocol
}
func (b *Birc) Origin() string {
return b.origin
}
func (b *Birc) Send(msg config.Message) error {
if msg.Origin == "irc" {
if msg.FullOrigin == b.FullOrigin() {
return nil
}
if strings.HasPrefix(msg.Text, "!") {
@ -95,16 +109,18 @@ func (b *Birc) endNames(event *irc.Event) {
maxNamesPerPost := (300 / b.nicksPerRow()) * b.nicksPerRow()
continued := false
for len(b.names[channel]) > maxNamesPerPost {
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel][0:maxNamesPerPost], continued), Channel: channel, Origin: "irc"}
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel][0:maxNamesPerPost], continued),
Channel: channel, Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
b.names[channel] = b.names[channel][maxNamesPerPost:]
continued = true
}
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel], continued), Channel: channel, Origin: "irc"}
b.Remote <- config.Message{Username: b.ircNick, Text: b.formatnicks(b.names[channel], continued), Channel: channel,
Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
b.names[channel] = nil
}
func (b *Birc) handleNewConnection(event *irc.Event) {
flog.irc.Info("Registering callbacks")
flog.Info("Registering callbacks")
i := b.i
b.ircNick = event.Arguments[0]
i.AddCallback("PRIVMSG", b.handlePrivMsg)
@ -113,68 +129,55 @@ func (b *Birc) handleNewConnection(event *irc.Event) {
i.AddCallback(ircm.RPL_ENDOFNAMES, b.endNames)
i.AddCallback(ircm.RPL_NAMREPLY, b.storeNames)
i.AddCallback(ircm.NOTICE, b.handleNotice)
i.AddCallback(ircm.RPL_MYINFO, func(e *irc.Event) { flog.irc.Infof("%s: %s", e.Code, strings.Join(e.Arguments[1:], " ")) })
i.AddCallback(ircm.RPL_MYINFO, func(e *irc.Event) { flog.Infof("%s: %s", e.Code, strings.Join(e.Arguments[1:], " ")) })
i.AddCallback("PING", func(e *irc.Event) {
i.SendRaw("PONG :" + e.Message())
flog.irc.Debugf("PING/PONG")
flog.Debugf("PING/PONG")
})
if b.Config.Mattermost.ShowJoinPart {
i.AddCallback("JOIN", b.handleJoinPart)
i.AddCallback("PART", b.handleJoinPart)
}
i.AddCallback("*", b.handleOther)
b.setupChannels()
}
func (b *Birc) handleJoinPart(event *irc.Event) {
//b.Send(b.ircNick, b.ircNickFormat(event.Nick)+" "+strings.ToLower(event.Code)+"s "+event.Message(), b.getMMChannel(event.Arguments[0]))
}
func (b *Birc) handleNotice(event *irc.Event) {
if strings.Contains(event.Message(), "This nickname is registered") {
b.i.Privmsg(b.Config.IRC.NickServNick, "IDENTIFY "+b.Config.IRC.NickServPassword)
b.i.Privmsg(b.Config.NickServNick, "IDENTIFY "+b.Config.NickServPassword)
}
}
func (b *Birc) handleOther(event *irc.Event) {
flog.irc.Debugf("%#v", event)
flog.Debugf("%#v", event)
}
func (b *Birc) handlePrivMsg(event *irc.Event) {
flog.irc.Debugf("handlePrivMsg() %s %s", event.Nick, event.Message())
flog.Debugf("handlePrivMsg() %s %s", event.Nick, event.Message())
msg := ""
if event.Code == "CTCP_ACTION" {
msg = event.Nick + " "
}
msg += event.Message()
b.Remote <- config.Message{Username: event.Nick, Text: msg, Channel: event.Arguments[0], Origin: "irc"}
b.Remote <- config.Message{Username: event.Nick, Text: msg, Channel: event.Arguments[0], Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
func (b *Birc) handleTopicWhoTime(event *irc.Event) {
parts := strings.Split(event.Arguments[2], "!")
t, err := strconv.ParseInt(event.Arguments[3], 10, 64)
if err != nil {
flog.irc.Errorf("Invalid time stamp: %s", event.Arguments[3])
flog.Errorf("Invalid time stamp: %s", event.Arguments[3])
}
user := parts[0]
if len(parts) > 1 {
user += " [" + parts[1] + "]"
}
flog.irc.Infof("%s: Topic set by %s [%s]", event.Code, user, time.Unix(t, 0))
flog.Infof("%s: Topic set by %s [%s]", event.Code, user, time.Unix(t, 0))
}
func (b *Birc) nicksPerRow() int {
return 4
/*
if b.Config.Mattermost.NicksPerRow < 1 {
return 4
}
return b.Config.Mattermost.NicksPerRow
}
func (b *Birc) setupChannels() {
for _, val := range b.Config.Channel {
flog.irc.Infof("Joining %s as %s", val.IRC, b.ircNick)
b.i.Join(val.IRC)
}
*/
}
func (b *Birc) storeNames(event *irc.Event) {
@ -185,10 +188,13 @@ func (b *Birc) storeNames(event *irc.Event) {
}
func (b *Birc) formatnicks(nicks []string, continued bool) string {
return plainformatter(nicks, b.nicksPerRow())
/*
switch b.Config.Mattermost.NickFormatter {
case "table":
return tableformatter(nicks, b.nicksPerRow(), continued)
default:
return plainformatter(nicks, b.nicksPerRow())
}
*/
}

65
bridge/mattermost/mattermost.go
View File

@ -8,7 +8,6 @@ import (
"strings"
)
//type Bridge struct {
type MMhook struct {
mh *matterhook.Client
}
@ -28,15 +27,16 @@ type MMMessage struct {
type Bmattermost struct {
MMhook
MMapi
*config.Config
Config *config.Protocol
Plus bool
Remote chan config.Message
name string
origin string
protocol string
}
type FancyLog struct {
irc *log.Entry
mm *log.Entry
xmpp *log.Entry
}
var flog FancyLog
@ -44,16 +44,17 @@ var flog FancyLog
const Legacy = "legacy"
func init() {
flog.irc = log.WithFields(log.Fields{"module": "irc"})
flog.mm = log.WithFields(log.Fields{"module": "mattermost"})
flog.xmpp = log.WithFields(log.Fields{"module": "xmpp"})
}
func New(cfg *config.Config, c chan config.Message) *Bmattermost {
func New(cfg config.Protocol, origin string, c chan config.Message) *Bmattermost {
b := &Bmattermost{}
b.Config = cfg
b.Config = &cfg
b.origin = origin
b.Remote = c
b.Plus = cfg.General.Plus
b.protocol = "mattermost"
b.name = cfg.Name
b.Plus = cfg.UseAPI
b.mmMap = make(map[string]string)
return b
}
@ -64,44 +65,62 @@ func (b *Bmattermost) Command(cmd string) string {
func (b *Bmattermost) Connect() error {
if !b.Plus {
b.mh = matterhook.New(b.Config.Mattermost.URL,
matterhook.Config{InsecureSkipVerify: b.Config.Mattermost.SkipTLSVerify,
BindAddress: b.Config.Mattermost.BindAddress})
b.mh = matterhook.New(b.Config.URL,
matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
BindAddress: b.Config.BindAddress})
} else {
b.mc = matterclient.New(b.Config.Mattermost.Login, b.Config.Mattermost.Password,
b.Config.Mattermost.Team, b.Config.Mattermost.Server)
b.mc.SkipTLSVerify = b.Config.Mattermost.SkipTLSVerify
b.mc.NoTLS = b.Config.Mattermost.NoTLS
flog.mm.Infof("Trying login %s (team: %s) on %s", b.Config.Mattermost.Login, b.Config.Mattermost.Team, b.Config.Mattermost.Server)
b.mc = matterclient.New(b.Config.Login, b.Config.Password,
b.Config.Team, b.Config.Server)
b.mc.SkipTLSVerify = b.Config.SkipTLSVerify
b.mc.NoTLS = b.Config.NoTLS
flog.mm.Infof("Trying login %s (team: %s) on %s", b.Config.Login, b.Config.Team, b.Config.Server)
err := b.mc.Login()
if err != nil {
return err
}
flog.mm.Info("Login ok")
b.mc.JoinChannel(b.Config.Mattermost.Channel)
/*
b.mc.JoinChannel(b.Config.Channel)
for _, val := range b.Config.Channel {
b.mc.JoinChannel(val.Mattermost)
}
*/
go b.mc.WsReceiver()
}
go b.handleMatter()
return nil
}
func (b *Bmattermost) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *Bmattermost) JoinChannel(channel string) error {
return b.mc.JoinChannel(channel)
}
func (b *Bmattermost) Name() string {
return "mattermost"
return b.protocol + "." + b.origin
}
func (b *Bmattermost) Origin() string {
return b.origin
}
func (b *Bmattermost) Protocol() string {
return b.protocol
}
func (b *Bmattermost) Send(msg config.Message) error {
flog.mm.Infof("mattermost send %#v", msg)
if msg.Origin != "mattermost" {
if msg.Origin != b.origin {
return b.SendType(msg.Username, msg.Text, msg.Channel, "")
}
return nil
}
func (b *Bmattermost) SendType(nick string, message string, channel string, mtype string) error {
if b.Config.Mattermost.PrefixMessagesWithNick {
if b.Config.PrefixMessagesWithNick {
/*if IsMarkup(message) {
message = nick + "\n\n" + message
} else {
@ -110,7 +129,7 @@ func (b *Bmattermost) SendType(nick string, message string, channel string, mtyp
//}
}
if !b.Plus {
matterMessage := matterhook.OMessage{IconURL: b.Config.Mattermost.IconURL}
matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}
matterMessage.Channel = channel
matterMessage.UserName = nick
matterMessage.Type = mtype
@ -141,7 +160,7 @@ func (b *Bmattermost) handleMatter() {
texts := strings.Split(message.Text, "\n")
for _, text := range texts {
flog.mm.Debug("Sending message from " + message.Username + " to " + message.Channel)
b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Origin: "mattermost"}
b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
}
}

79
bridge/slack/slack.go
View File

@ -15,41 +15,46 @@ type MMMessage struct {
Username string
}
type bslack struct {
type Bslack struct {
mh *matterhook.Client
sc *slack.Client
// MMapi
*config.Config
Config *config.Protocol
rtm *slack.RTM
Plus bool
Remote chan config.Message
protocol string
origin string
channels []slack.Channel
}
var flog *log.Entry
var protocol = "slack"
func init() {
flog = log.WithFields(log.Fields{"module": "slack"})
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(cfg *config.Config, c chan config.Message) *bslack {
b := &bslack{}
b.Config = cfg
func New(config config.Protocol, origin string, c chan config.Message) *Bslack {
b := &Bslack{}
b.Config = &config
b.Remote = c
b.Plus = cfg.Slack.UseAPI
b.protocol = protocol
b.origin = origin
b.Plus = config.UseAPI
return b
}
func (b *bslack) Command(cmd string) string {
func (b *Bslack) Command(cmd string) string {
return ""
}
func (b *bslack) Connect() error {
func (b *Bslack) Connect() error {
if !b.Plus {
b.mh = matterhook.New(b.Config.Slack.URL,
matterhook.Config{BindAddress: b.Config.Slack.BindAddress})
b.mh = matterhook.New(b.Config.URL,
matterhook.Config{BindAddress: b.Config.BindAddress})
} else {
b.sc = slack.New(b.Config.Slack.Token)
b.sc = slack.New(b.Config.Token)
flog.Infof("Trying login on slack with Token")
/*
if err != nil {
@ -64,11 +69,32 @@ func (b *bslack) Connect() error {
return nil
}
func (b *bslack) Name() string {
return "slack"
func (b *Bslack) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *bslack) Send(msg config.Message) error {
func (b *Bslack) JoinChannel(channel string) error {
schannel := b.getChannelByName(channel)
if schannel != nil && !schannel.IsMember {
flog.Infof("Joining %s", channel)
b.sc.JoinChannel(schannel.ID)
}
return nil
}
func (b *Bslack) Name() string {
return b.protocol + "." + b.origin
}
func (b *Bslack) Protocol() string {
return b.protocol
}
func (b *Bslack) Origin() string {
return b.origin
}
func (b *Bslack) Send(msg config.Message) error {
flog.Infof("slack send %#v", msg)
if msg.Origin != "slack" {
return b.SendType(msg.Username, msg.Text, msg.Channel, "")
@ -76,12 +102,12 @@ func (b *bslack) Send(msg config.Message) error {
return nil
}
func (b *bslack) SendType(nick string, message string, channel string, mtype string) error {
if b.Config.Slack.PrefixMessagesWithNick {
func (b *Bslack) SendType(nick string, message string, channel string, mtype string) error {
if b.Config.PrefixMessagesWithNick {
message = nick + " " + message
}
if !b.Plus {
matterMessage := matterhook.OMessage{IconURL: b.Config.Slack.IconURL}
matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}
matterMessage.Channel = channel
matterMessage.UserName = nick
matterMessage.Type = mtype
@ -100,7 +126,7 @@ func (b *bslack) SendType(nick string, message string, channel string, mtype str
return nil
}
func (b *bslack) getChannelByName(name string) *slack.Channel {
func (b *Bslack) getChannelByName(name string) *slack.Channel {
if b.channels == nil {
return nil
}
@ -112,7 +138,7 @@ func (b *bslack) getChannelByName(name string) *slack.Channel {
return nil
}
func (b *bslack) handleSlack() {
func (b *Bslack) handleSlack() {
flog.Infof("Choosing API based slack connection: %t", b.Plus)
mchan := make(chan *MMMessage)
if b.Plus {
@ -126,12 +152,12 @@ func (b *bslack) handleSlack() {
texts := strings.Split(message.Text, "\n")
for _, text := range texts {
flog.Debug("Sending message from " + message.Username + " to " + message.Channel)
b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Origin: "slack"}
b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
}
}
func (b *bslack) handleSlackClient(mchan chan *MMMessage) {
func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
for msg := range b.rtm.IncomingEvents {
switch ev := msg.Data.(type) {
case *slack.MessageEvent:
@ -153,13 +179,6 @@ func (b *bslack) handleSlackClient(mchan chan *MMMessage) {
flog.Debugf("%#v", ev.Error())
case *slack.ConnectedEvent:
b.channels = ev.Info.Channels
for _, val := range b.Config.Channel {
channel := b.getChannelByName(val.Slack)
if channel != nil && !channel.IsMember {
flog.Infof("Joining %s", val.Slack)
b.sc.JoinChannel(channel.ID)
}
}
case *slack.InvalidAuthEvent:
flog.Fatalf("Invalid Token %#v", ev)
default:
@ -167,7 +186,7 @@ func (b *bslack) handleSlackClient(mchan chan *MMMessage) {
}
}
func (b *bslack) handleMatterHook(mchan chan *MMMessage) {
func (b *Bslack) handleMatterHook(mchan chan *MMMessage) {
for {
message := b.mh.Receive()
flog.Debugf("receiving from slack %#v", message)

72
bridge/xmpp/xmpp.go
View File

@ -12,62 +12,73 @@ import (
type Bxmpp struct {
xc *xmpp.Client
xmppMap map[string]string
*config.Config
Config *config.Protocol
origin string
protocol string
Remote chan config.Message
}
type FancyLog struct {
xmpp *log.Entry
}
type Message struct {
Text string
Channel string
Username string
}
var flog FancyLog
var flog *log.Entry
var protocol = "xmpp"
func init() {
flog.xmpp = log.WithFields(log.Fields{"module": "xmpp"})
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(config *config.Config, c chan config.Message) *Bxmpp {
func New(config config.Protocol, origin string, c chan config.Message) *Bxmpp {
b := &Bxmpp{}
b.xmppMap = make(map[string]string)
b.Config = config
b.Config = &config
b.protocol = protocol
b.origin = origin
b.Remote = c
return b
}
func (b *Bxmpp) Connect() error {
var err error
flog.xmpp.Info("Trying XMPP connection")
flog.Info("Trying XMPP connection")
b.xc, err = b.createXMPP()
if err != nil {
flog.xmpp.Debugf("%#v", err)
flog.Debugf("%#v", err)
return err
}
flog.xmpp.Info("Connection succeeded")
b.setupChannels()
flog.Info("Connection succeeded")
go b.handleXmpp()
return nil
}
func (b *Bxmpp) FullOrigin() string {
return b.protocol + "." + b.origin
}
func (b *Bxmpp) JoinChannel(channel string) error {
b.xc.JoinMUCNoHistory(channel+"@"+b.Config.Muc, b.Config.Nick)
return nil
}
func (b *Bxmpp) Name() string {
return "xmpp"
return b.protocol + "." + b.origin
}
func (b *Bxmpp) Protocol() string {
return b.protocol
}
func (b *Bxmpp) Origin() string {
return b.origin
}
func (b *Bxmpp) Send(msg config.Message) error {
b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Xmpp.Muc, Text: msg.Username + msg.Text})
b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Config.Muc, Text: msg.Username + msg.Text})
return nil
}
func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
options := xmpp.Options{
Host: b.Config.Xmpp.Server,
User: b.Config.Xmpp.Jid,
Password: b.Config.Xmpp.Password,
Host: b.Config.Server,
User: b.Config.Jid,
Password: b.Config.Password,
NoTLS: true,
StartTLS: true,
//StartTLS: false,
@ -84,13 +95,6 @@ func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
return b.xc, err
}
func (b *Bxmpp) setupChannels() {
for _, val := range b.Config.Channel {
flog.xmpp.Infof("Joining %s as %s", val.Xmpp, b.Xmpp.Nick)
b.xc.JoinMUCNoHistory(val.Xmpp+"@"+b.Xmpp.Muc, b.Xmpp.Nick)
}
}
func (b *Bxmpp) xmppKeepAlive() {
go func() {
ticker := time.NewTicker(90 * time.Second)
@ -121,9 +125,9 @@ func (b *Bxmpp) handleXmpp() error {
if len(s) == 2 {
nick = s[1]
}
if nick != b.Xmpp.Nick {
flog.xmpp.Infof("sending message to remote %s %s %s", nick, v.Text, channel)
b.Remote <- config.Message{Username: nick, Text: v.Text, Channel: channel, Origin: "xmpp"}
if nick != b.Config.Nick {
flog.Infof("sending message to remote %s %s %s", nick, v.Text, channel)
b.Remote <- config.Message{Username: nick, Text: v.Text, Channel: channel, Origin: b.origin, Protocol: b.protocol, FullOrigin: b.FullOrigin()}
}
}
case xmpp.Presence:

135
gateway/gateway.go Normal file
View File

@ -0,0 +1,135 @@
package gateway
import (
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
log "github.com/Sirupsen/logrus"
"strings"
)
type Gateway struct {
*config.Config
MyConfig *config.Gateway
Bridges []bridge.Bridge
ChannelsOut map[string][]string
ChannelsIn map[string][]string
ignoreNicks map[string][]string
Name string
}
func New(cfg *config.Config, gateway *config.Gateway) error {
c := make(chan config.Message)
gw := &Gateway{}
gw.Name = gateway.Name
gw.Config = cfg
gw.MyConfig = gateway
for _, br := range gateway.In {
gw.Bridges = append(gw.Bridges, bridge.New(cfg, &br, c))
}
gw.mapChannels()
gw.mapIgnores()
for _, br := range gw.Bridges {
br.Connect()
for _, channel := range gw.ChannelsOut[br.FullOrigin()] {
br.JoinChannel(channel)
}
}
gw.handleReceive(c)
return nil
}
func (gw *Gateway) handleReceive(c chan config.Message) {
for {
select {
case msg := <-c:
for _, br := range gw.Bridges {
gw.handleMessage(msg, br)
}
}
}
}
func (gw *Gateway) mapChannels() error {
m := make(map[string][]string)
for _, br := range gw.MyConfig.Out {
m[br.Account] = append(m[br.Account], br.Channel)
}
gw.ChannelsOut = m
m = nil
m = make(map[string][]string)
for _, br := range gw.MyConfig.In {
m[br.Account] = append(m[br.Account], br.Channel)
}
gw.ChannelsIn = m
return nil
}
func (gw *Gateway) mapIgnores() {
m := make(map[string][]string)
for _, br := range gw.MyConfig.In {
accInfo := strings.Split(br.Account, ".")
m[br.Account] = strings.Fields(gw.Config.IRC[accInfo[1]].IgnoreNicks)
}
gw.ignoreNicks = m
}
func (gw *Gateway) getDestChannel(msg *config.Message, dest string) []string {
return gw.ChannelsOut[dest]
}
func (gw *Gateway) handleMessage(msg config.Message, dest bridge.Bridge) {
if gw.ignoreMessage(&msg) {
return
}
channels := gw.getDestChannel(&msg, dest.FullOrigin())
for _, channel := range channels {
// do not send the message to the bridge we come from if also the channel is the same
if msg.FullOrigin == dest.FullOrigin() && msg.Channel == channel {
log.Debug("continue", msg.Protocol, msg.Origin, dest.Protocol(), dest.Origin())
continue
}
msg.Channel = channel
if msg.Channel == "" {
log.Debug("empty channel")
return
}
gw.modifyMessage(&msg, dest)
log.Debugf("sending %#v from %s to %s", msg, msg.Origin, dest.Origin())
dest.Send(msg)
}
}
func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
// should we discard messages ?
for _, entry := range gw.ignoreNicks[msg.FullOrigin] {
if msg.Username == entry {
return true
}
}
return false
}
func setNickFormat(msg *config.Message, format string) {
if format == "" {
msg.Username = msg.Protocol + "." + msg.Origin + "-" + msg.Username + ": "
return
}
msg.Username = strings.Replace(format, "{NICK}", msg.Username, -1)
msg.Username = strings.Replace(msg.Username, "{BRIDGE}", msg.Origin, -1)
msg.Username = strings.Replace(msg.Username, "{PROTOCOL}", msg.Protocol, -1)
}
func (gw *Gateway) modifyMessage(msg *config.Message, dest bridge.Bridge) {
switch dest.Protocol() {
case "irc":
setNickFormat(msg, gw.Config.IRC[dest.Origin()].RemoteNickFormat)
case "gitter":
setNickFormat(msg, gw.Config.Gitter[dest.Origin()].RemoteNickFormat)
case "xmpp":
setNickFormat(msg, gw.Config.Xmpp[dest.Origin()].RemoteNickFormat)
case "mattermost":
setNickFormat(msg, gw.Config.Mattermost[dest.Origin()].RemoteNickFormat)
case "slack":
setNickFormat(msg, gw.Config.Slack[dest.Origin()].RemoteNickFormat)
}
}

21
matterbridge.go
View File

@ -3,22 +3,21 @@ package main
import (
"flag"
"fmt"
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/gateway"
log "github.com/Sirupsen/logrus"
)
var version = "0.6.1"
var version = "0.7.0-dev"
func init() {
log.SetFormatter(&log.TextFormatter{FullTimestamp: true})
}
func main() {
flagConfig := flag.String("conf", "matterbridge.conf", "config file")
flagConfig := flag.String("conf", "matterbridge.toml", "config file")
flagDebug := flag.Bool("debug", false, "enable debug")
flagVersion := flag.Bool("version", false, "show version")
flagPlus := flag.Bool("plus", false, "running using API instead of webhooks (deprecated, set Plus flag in [general] config)")
flag.Parse()
if *flagVersion {
fmt.Println("version:", version)
@ -31,11 +30,17 @@ func main() {
}
fmt.Println("running version", version)
cfg := config.NewConfig(*flagConfig)
if *flagPlus {
cfg.General.Plus = true
for _, gw := range cfg.Gateway {
if !gw.Enable {
continue
}
err := bridge.NewBridge(cfg)
fmt.Printf("starting gateway %#v\n", gw.Name)
go func(gw config.Gateway) {
err := gateway.New(cfg, &gw)
if err != nil {
log.Debugf("starting bridge failed %#v", err)
log.Debugf("starting gateway failed %#v", err)
}
}(gw)
}
select {}
}

14
vendor/github.com/BurntSushi/toml/COPYING generated vendored Normal file
View File

@ -0,0 +1,14 @@
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

90
vendor/github.com/BurntSushi/toml/cmd/toml-test-decoder/main.go generated vendored Normal file
View File

@ -0,0 +1,90 @@
// Command toml-test-decoder satisfies the toml-test interface for testing
// TOML decoders. Namely, it accepts TOML on stdin and outputs JSON on stdout.
package main
import (
"encoding/json"
"flag"
"fmt"
"log"
"os"
"path"
"time"
"github.com/BurntSushi/toml"
)
func init() {
log.SetFlags(0)
flag.Usage = usage
flag.Parse()
}
func usage() {
log.Printf("Usage: %s < toml-file\n", path.Base(os.Args[0]))
flag.PrintDefaults()
os.Exit(1)
}
func main() {
if flag.NArg() != 0 {
flag.Usage()
}
var tmp interface{}
if _, err := toml.DecodeReader(os.Stdin, &tmp); err != nil {
log.Fatalf("Error decoding TOML: %s", err)
}
typedTmp := translate(tmp)
if err := json.NewEncoder(os.Stdout).Encode(typedTmp); err != nil {
log.Fatalf("Error encoding JSON: %s", err)
}
}
func translate(tomlData interface{}) interface{} {
switch orig := tomlData.(type) {
case map[string]interface{}:
typed := make(map[string]interface{}, len(orig))
for k, v := range orig {
typed[k] = translate(v)
}
return typed
case []map[string]interface{}:
typed := make([]map[string]interface{}, len(orig))
for i, v := range orig {
typed[i] = translate(v).(map[string]interface{})
}
return typed
case []interface{}:
typed := make([]interface{}, len(orig))
for i, v := range orig {
typed[i] = translate(v)
}
// We don't really need to tag arrays, but let's be future proof.
// (If TOML ever supports tuples, we'll need this.)
return tag("array", typed)
case time.Time:
return tag("datetime", orig.Format("2006-01-02T15:04:05Z"))
case bool:
return tag("bool", fmt.Sprintf("%v", orig))
case int64:
return tag("integer", fmt.Sprintf("%d", orig))
case float64:
return tag("float", fmt.Sprintf("%v", orig))
case string:
return tag("string", orig)
}
panic(fmt.Sprintf("Unknown type: %T", tomlData))
}
func tag(typeName string, data interface{}) map[string]interface{} {
return map[string]interface{}{
"type": typeName,
"value": data,
}
}

131
vendor/github.com/BurntSushi/toml/cmd/toml-test-encoder/main.go generated vendored Normal file
View File

@ -0,0 +1,131 @@
// Command toml-test-encoder satisfies the toml-test interface for testing
// TOML encoders. Namely, it accepts JSON on stdin and outputs TOML on stdout.
package main
import (
"encoding/json"
"flag"
"log"
"os"
"path"
"strconv"
"time"
"github.com/BurntSushi/toml"
)
func init() {
log.SetFlags(0)
flag.Usage = usage
flag.Parse()
}
func usage() {
log.Printf("Usage: %s < json-file\n", path.Base(os.Args[0]))
flag.PrintDefaults()
os.Exit(1)
}
func main() {
if flag.NArg() != 0 {
flag.Usage()
}
var tmp interface{}
if err := json.NewDecoder(os.Stdin).Decode(&tmp); err != nil {
log.Fatalf("Error decoding JSON: %s", err)
}
tomlData := translate(tmp)
if err := toml.NewEncoder(os.Stdout).Encode(tomlData); err != nil {
log.Fatalf("Error encoding TOML: %s", err)
}
}
func translate(typedJson interface{}) interface{} {
switch v := typedJson.(type) {
case map[string]interface{}:
if len(v) == 2 && in("type", v) && in("value", v) {
return untag(v)
}
m := make(map[string]interface{}, len(v))
for k, v2 := range v {
m[k] = translate(v2)
}
return m
case []interface{}:
tabArray := make([]map[string]interface{}, len(v))
for i := range v {
if m, ok := translate(v[i]).(map[string]interface{}); ok {
tabArray[i] = m
} else {
log.Fatalf("JSON arrays may only contain objects. This " +
"corresponds to only tables being allowed in " +
"TOML table arrays.")
}
}
return tabArray
}
log.Fatalf("Unrecognized JSON format '%T'.", typedJson)
panic("unreachable")
}
func untag(typed map[string]interface{}) interface{} {
t := typed["type"].(string)
v := typed["value"]
switch t {
case "string":
return v.(string)
case "integer":
v := v.(string)
n, err := strconv.Atoi(v)
if err != nil {
log.Fatalf("Could not parse '%s' as integer: %s", v, err)
}
return n
case "float":
v := v.(string)
f, err := strconv.ParseFloat(v, 64)
if err != nil {
log.Fatalf("Could not parse '%s' as float64: %s", v, err)
}
return f
case "datetime":
v := v.(string)
t, err := time.Parse("2006-01-02T15:04:05Z", v)
if err != nil {
log.Fatalf("Could not parse '%s' as a datetime: %s", v, err)
}
return t
case "bool":
v := v.(string)
switch v {
case "true":
return true
case "false":
return false
}
log.Fatalf("Could not parse '%s' as a boolean.", v)
case "array":
v := v.([]interface{})
array := make([]interface{}, len(v))
for i := range v {
if m, ok := v[i].(map[string]interface{}); ok {
array[i] = untag(m)
} else {
log.Fatalf("Arrays may only contain other arrays or "+
"primitive values, but found a '%T'.", m)
}
}
return array
}
log.Fatalf("Unrecognized tag type '%s'.", t)
panic("unreachable")
}
func in(key string, m map[string]interface{}) bool {
_, ok := m[key]
return ok
}

61
vendor/github.com/BurntSushi/toml/cmd/tomlv/main.go generated vendored Normal file
View File

@ -0,0 +1,61 @@
// Command tomlv validates TOML documents and prints each key's type.
package main
import (
"flag"
"fmt"
"log"
"os"
"path"
"strings"
"text/tabwriter"
"github.com/BurntSushi/toml"
)
var (
flagTypes = false
)
func init() {
log.SetFlags(0)
flag.BoolVar(&flagTypes, "types", flagTypes,
"When set, the types of every defined key will be shown.")
flag.Usage = usage
flag.Parse()
}
func usage() {
log.Printf("Usage: %s toml-file [ toml-file ... ]\n",
path.Base(os.Args[0]))
flag.PrintDefaults()
os.Exit(1)
}
func main() {
if flag.NArg() < 1 {
flag.Usage()
}
for _, f := range flag.Args() {
var tmp interface{}
md, err := toml.DecodeFile(f, &tmp)
if err != nil {
log.Fatalf("Error in '%s': %s", f, err)
}
if flagTypes {
printTypes(md)
}
}
}
func printTypes(md toml.MetaData) {
tabw := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
for _, key := range md.Keys() {
fmt.Fprintf(tabw, "%s%s\t%s\n",
strings.Repeat(" ", len(key)-1), key, md.Type(key...))
}
tabw.Flush()
}

509
vendor/github.com/BurntSushi/toml/decode.go generated vendored Normal file
View File

@ -0,0 +1,509 @@
package toml
import (
"fmt"
"io"
"io/ioutil"
"math"
"reflect"
"strings"
"time"
)
func e(format string, args ...interface{}) error {
return fmt.Errorf("toml: "+format, args...)
}
// Unmarshaler is the interface implemented by objects that can unmarshal a
// TOML description of themselves.
type Unmarshaler interface {
UnmarshalTOML(interface{}) error
}
// Unmarshal decodes the contents of `p` in TOML format into a pointer `v`.
func Unmarshal(p []byte, v interface{}) error {
_, err := Decode(string(p), v)
return err
}
// Primitive is a TOML value that hasn't been decoded into a Go value.
// When using the various `Decode*` functions, the type `Primitive` may
// be given to any value, and its decoding will be delayed.
//
// A `Primitive` value can be decoded using the `PrimitiveDecode` function.
//
// The underlying representation of a `Primitive` value is subject to change.
// Do not rely on it.
//
// N.B. Primitive values are still parsed, so using them will only avoid
// the overhead of reflection. They can be useful when you don't know the
// exact type of TOML data until run time.
type Primitive struct {
undecoded interface{}
context Key
}
// DEPRECATED!
//
// Use MetaData.PrimitiveDecode instead.
func PrimitiveDecode(primValue Primitive, v interface{}) error {
md := MetaData{decoded: make(map[string]bool)}
return md.unify(primValue.undecoded, rvalue(v))
}
// PrimitiveDecode is just like the other `Decode*` functions, except it
// decodes a TOML value that has already been parsed. Valid primitive values
// can *only* be obtained from values filled by the decoder functions,
// including this method. (i.e., `v` may contain more `Primitive`
// values.)
//
// Meta data for primitive values is included in the meta data returned by
// the `Decode*` functions with one exception: keys returned by the Undecoded
// method will only reflect keys that were decoded. Namely, any keys hidden
// behind a Primitive will be considered undecoded. Executing this method will
// update the undecoded keys in the meta data. (See the example.)
func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
md.context = primValue.context
defer func() { md.context = nil }()
return md.unify(primValue.undecoded, rvalue(v))
}
// Decode will decode the contents of `data` in TOML format into a pointer
// `v`.
//
// TOML hashes correspond to Go structs or maps. (Dealer's choice. They can be
// used interchangeably.)
//
// TOML arrays of tables correspond to either a slice of structs or a slice
// of maps.
//
// TOML datetimes correspond to Go `time.Time` values.
//
// All other TOML types (float, string, int, bool and array) correspond
// to the obvious Go types.
//
// An exception to the above rules is if a type implements the
// encoding.TextUnmarshaler interface. In this case, any primitive TOML value
// (floats, strings, integers, booleans and datetimes) will be converted to
// a byte string and given to the value's UnmarshalText method. See the
// Unmarshaler example for a demonstration with time duration strings.
//
// Key mapping
//
// TOML keys can map to either keys in a Go map or field names in a Go
// struct. The special `toml` struct tag may be used to map TOML keys to
// struct fields that don't match the key name exactly. (See the example.)
// A case insensitive match to struct names will be tried if an exact match
// can't be found.
//
// The mapping between TOML values and Go values is loose. That is, there
// may exist TOML values that cannot be placed into your representation, and
// there may be parts of your representation that do not correspond to
// TOML values. This loose mapping can be made stricter by using the IsDefined
// and/or Undecoded methods on the MetaData returned.
//
// This decoder will not handle cyclic types. If a cyclic type is passed,
// `Decode` will not terminate.
func Decode(data string, v interface{}) (MetaData, error) {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Ptr {
return MetaData{}, e("Decode of non-pointer %s", reflect.TypeOf(v))
}
if rv.IsNil() {
return MetaData{}, e("Decode of nil %s", reflect.TypeOf(v))
}
p, err := parse(data)
if err != nil {
return MetaData{}, err
}
md := MetaData{
p.mapping, p.types, p.ordered,
make(map[string]bool, len(p.ordered)), nil,
}
return md, md.unify(p.mapping, indirect(rv))
}
// DecodeFile is just like Decode, except it will automatically read the
// contents of the file at `fpath` and decode it for you.
func DecodeFile(fpath string, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadFile(fpath)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// DecodeReader is just like Decode, except it will consume all bytes
// from the reader and decode it for you.
func DecodeReader(r io.Reader, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadAll(r)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// unify performs a sort of type unification based on the structure of `rv`,
// which is the client representation.
//
// Any type mismatch produces an error. Finding a type that we don't know
// how to handle produces an unsupported type error.
func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
// Special case. Look for a `Primitive` value.
if rv.Type() == reflect.TypeOf((*Primitive)(nil)).Elem() {
// Save the undecoded data and the key context into the primitive
// value.
context := make(Key, len(md.context))
copy(context, md.context)
rv.Set(reflect.ValueOf(Primitive{
undecoded: data,
context: context,
}))
return nil
}
// Special case. Unmarshaler Interface support.
if rv.CanAddr() {
if v, ok := rv.Addr().Interface().(Unmarshaler); ok {
return v.UnmarshalTOML(data)
}
}
// Special case. Handle time.Time values specifically.
// TODO: Remove this code when we decide to drop support for Go 1.1.
// This isn't necessary in Go 1.2 because time.Time satisfies the encoding
// interfaces.
if rv.Type().AssignableTo(rvalue(time.Time{}).Type()) {
return md.unifyDatetime(data, rv)
}
// Special case. Look for a value satisfying the TextUnmarshaler interface.
if v, ok := rv.Interface().(TextUnmarshaler); ok {
return md.unifyText(data, v)
}
// BUG(burntsushi)
// The behavior here is incorrect whenever a Go type satisfies the
// encoding.TextUnmarshaler interface but also corresponds to a TOML
// hash or array. In particular, the unmarshaler should only be applied
// to primitive TOML values. But at this point, it will be applied to
// all kinds of values and produce an incorrect error whenever those values
// are hashes or arrays (including arrays of tables).
k := rv.Kind()
// laziness
if k >= reflect.Int && k <= reflect.Uint64 {
return md.unifyInt(data, rv)
}
switch k {
case reflect.Ptr:
elem := reflect.New(rv.Type().Elem())
err := md.unify(data, reflect.Indirect(elem))
if err != nil {
return err
}
rv.Set(elem)
return nil
case reflect.Struct:
return md.unifyStruct(data, rv)
case reflect.Map:
return md.unifyMap(data, rv)
case reflect.Array:
return md.unifyArray(data, rv)
case reflect.Slice:
return md.unifySlice(data, rv)
case reflect.String:
return md.unifyString(data, rv)
case reflect.Bool:
return md.unifyBool(data, rv)
case reflect.Interface:
// we only support empty interfaces.
if rv.NumMethod() > 0 {
return e("unsupported type %s", rv.Type())
}
return md.unifyAnything(data, rv)
case reflect.Float32:
fallthrough
case reflect.Float64:
return md.unifyFloat64(data, rv)
}
return e("unsupported type %s", rv.Kind())
}
func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if mapping == nil {
return nil
}
return e("type mismatch for %s: expected table but found %T",
rv.Type().String(), mapping)
}
for key, datum := range tmap {
var f *field
fields := cachedTypeFields(rv.Type())
for i := range fields {
ff := &fields[i]
if ff.name == key {
f = ff
break
}
if f == nil && strings.EqualFold(ff.name, key) {
f = ff
}
}
if f != nil {
subv := rv
for _, i := range f.index {
subv = indirect(subv.Field(i))
}
if isUnifiable(subv) {
md.decoded[md.context.add(key).String()] = true
md.context = append(md.context, key)
if err := md.unify(datum, subv); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
} else if f.name != "" {
// Bad user! No soup for you!
return e("cannot write unexported field %s.%s",
rv.Type().String(), f.name)
}
}
}
return nil
}
func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if tmap == nil {
return nil
}
return badtype("map", mapping)
}
if rv.IsNil() {
rv.Set(reflect.MakeMap(rv.Type()))
}
for k, v := range tmap {
md.decoded[md.context.add(k).String()] = true
md.context = append(md.context, k)
rvkey := indirect(reflect.New(rv.Type().Key()))
rvval := reflect.Indirect(reflect.New(rv.Type().Elem()))
if err := md.unify(v, rvval); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
rvkey.SetString(k)
rv.SetMapIndex(rvkey, rvval)
}
return nil
}
func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
sliceLen := datav.Len()
if sliceLen != rv.Len() {
return e("expected array length %d; got TOML array of length %d",
rv.Len(), sliceLen)
}
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySlice(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
n := datav.Len()
if rv.IsNil() || rv.Cap() < n {
rv.Set(reflect.MakeSlice(rv.Type(), n, n))
}
rv.SetLen(n)
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySliceArray(data, rv reflect.Value) error {
sliceLen := data.Len()
for i := 0; i < sliceLen; i++ {
v := data.Index(i).Interface()
sliceval := indirect(rv.Index(i))
if err := md.unify(v, sliceval); err != nil {
return err
}
}
return nil
}
func (md *MetaData) unifyDatetime(data interface{}, rv reflect.Value) error {
if _, ok := data.(time.Time); ok {
rv.Set(reflect.ValueOf(data))
return nil
}
return badtype("time.Time", data)
}
func (md *MetaData) unifyString(data interface{}, rv reflect.Value) error {
if s, ok := data.(string); ok {
rv.SetString(s)
return nil
}
return badtype("string", data)
}
func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
if num, ok := data.(float64); ok {
switch rv.Kind() {
case reflect.Float32:
fallthrough
case reflect.Float64:
rv.SetFloat(num)
default:
panic("bug")
}
return nil
}
return badtype("float", data)
}
func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
if num, ok := data.(int64); ok {
if rv.Kind() >= reflect.Int && rv.Kind() <= reflect.Int64 {
switch rv.Kind() {
case reflect.Int, reflect.Int64:
// No bounds checking necessary.
case reflect.Int8:
if num < math.MinInt8 || num > math.MaxInt8 {
return e("value %d is out of range for int8", num)
}
case reflect.Int16:
if num < math.MinInt16 || num > math.MaxInt16 {
return e("value %d is out of range for int16", num)
}
case reflect.Int32:
if num < math.MinInt32 || num > math.MaxInt32 {
return e("value %d is out of range for int32", num)
}
}
rv.SetInt(num)
} else if rv.Kind() >= reflect.Uint && rv.Kind() <= reflect.Uint64 {
unum := uint64(num)
switch rv.Kind() {
case reflect.Uint, reflect.Uint64:
// No bounds checking necessary.
case reflect.Uint8:
if num < 0 || unum > math.MaxUint8 {
return e("value %d is out of range for uint8", num)
}
case reflect.Uint16:
if num < 0 || unum > math.MaxUint16 {
return e("value %d is out of range for uint16", num)
}
case reflect.Uint32:
if num < 0 || unum > math.MaxUint32 {
return e("value %d is out of range for uint32", num)
}
}
rv.SetUint(unum)
} else {
panic("unreachable")
}
return nil
}
return badtype("integer", data)
}
func (md *MetaData) unifyBool(data interface{}, rv reflect.Value) error {
if b, ok := data.(bool); ok {
rv.SetBool(b)
return nil
}
return badtype("boolean", data)
}
func (md *MetaData) unifyAnything(data interface{}, rv reflect.Value) error {
rv.Set(reflect.ValueOf(data))
return nil
}
func (md *MetaData) unifyText(data interface{}, v TextUnmarshaler) error {
var s string
switch sdata := data.(type) {
case TextMarshaler:
text, err := sdata.MarshalText()
if err != nil {
return err
}
s = string(text)
case fmt.Stringer:
s = sdata.String()
case string:
s = sdata
case bool:
s = fmt.Sprintf("%v", sdata)
case int64:
s = fmt.Sprintf("%d", sdata)
case float64:
s = fmt.Sprintf("%f", sdata)
default:
return badtype("primitive (string-like)", data)
}
if err := v.UnmarshalText([]byte(s)); err != nil {
return err
}
return nil
}
// rvalue returns a reflect.Value of `v`. All pointers are resolved.
func rvalue(v interface{}) reflect.Value {
return indirect(reflect.ValueOf(v))
}
// indirect returns the value pointed to by a pointer.
// Pointers are followed until the value is not a pointer.
// New values are allocated for each nil pointer.
//
// An exception to this rule is if the value satisfies an interface of
// interest to us (like encoding.TextUnmarshaler).
func indirect(v reflect.Value) reflect.Value {
if v.Kind() != reflect.Ptr {
if v.CanSet() {
pv := v.Addr()
if _, ok := pv.Interface().(TextUnmarshaler); ok {
return pv
}
}
return v
}
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
return indirect(reflect.Indirect(v))
}
func isUnifiable(rv reflect.Value) bool {
if rv.CanSet() {
return true
}
if _, ok := rv.Interface().(TextUnmarshaler); ok {
return true
}
return false
}
func badtype(expected string, data interface{}) error {
return e("cannot load TOML value of type %T into a Go %s", data, expected)
}

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package toml
import "strings"
// MetaData allows access to meta information about TOML data that may not
// be inferrable via reflection. In particular, whether a key has been defined
// and the TOML type of a key.
type MetaData struct {
mapping map[string]interface{}
types map[string]tomlType
keys []Key
decoded map[string]bool
context Key // Used only during decoding.
}
// IsDefined returns true if the key given exists in the TOML data. The key
// should be specified hierarchially. e.g.,
//
// // access the TOML key 'a.b.c'
// IsDefined("a", "b", "c")
//
// IsDefined will return false if an empty key given. Keys are case sensitive.
func (md *MetaData) IsDefined(key ...string) bool {
if len(key) == 0 {
return false
}
var hash map[string]interface{}
var ok bool
var hashOrVal interface{} = md.mapping
for _, k := range key {
if hash, ok = hashOrVal.(map[string]interface{}); !ok {
return false
}
if hashOrVal, ok = hash[k]; !ok {
return false
}
}
return true
}
// Type returns a string representation of the type of the key specified.
//
// Type will return the empty string if given an empty key or a key that
// does not exist. Keys are case sensitive.
func (md *MetaData) Type(key ...string) string {
fullkey := strings.Join(key, ".")
if typ, ok := md.types[fullkey]; ok {
return typ.typeString()
}
return ""
}
// Key is the type of any TOML key, including key groups. Use (MetaData).Keys
// to get values of this type.
type Key []string
func (k Key) String() string {
return strings.Join(k, ".")
}
func (k Key) maybeQuotedAll() string {
var ss []string
for i := range k {
ss = append(ss, k.maybeQuoted(i))
}
return strings.Join(ss, ".")
}
func (k Key) maybeQuoted(i int) string {
quote := false
for _, c := range k[i] {
if !isBareKeyChar(c) {
quote = true
break
}
}
if quote {
return "\"" + strings.Replace(k[i], "\"", "\\\"", -1) + "\""
}
return k[i]
}
func (k Key) add(piece string) Key {
newKey := make(Key, len(k)+1)
copy(newKey, k)
newKey[len(k)] = piece
return newKey
}
// Keys returns a slice of every key in the TOML data, including key groups.
// Each key is itself a slice, where the first element is the top of the
// hierarchy and the last is the most specific.
//
// The list will have the same order as the keys appeared in the TOML data.
//
// All keys returned are non-empty.
func (md *MetaData) Keys() []Key {
return md.keys
}
// Undecoded returns all keys that have not been decoded in the order in which
// they appear in the original TOML document.
//
// This includes keys that haven't been decoded because of a Primitive value.
// Once the Primitive value is decoded, the keys will be considered decoded.
//
// Also note that decoding into an empty interface will result in no decoding,
// and so no keys will be considered decoded.
//
// In this sense, the Undecoded keys correspond to keys in the TOML document
// that do not have a concrete type in your representation.
func (md *MetaData) Undecoded() []Key {
undecoded := make([]Key, 0, len(md.keys))
for _, key := range md.keys {
if !md.decoded[key.String()] {
undecoded = append(undecoded, key)
}
}
return undecoded
}

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/*
Package toml provides facilities for decoding and encoding TOML configuration
files via reflection. There is also support for delaying decoding with
the Primitive type, and querying the set of keys in a TOML document with the
MetaData type.
The specification implemented: https://github.com/mojombo/toml
The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
whether a file is a valid TOML document. It can also be used to print the
type of each key in a TOML document.
Testing
There are two important types of tests used for this package. The first is
contained inside '*_test.go' files and uses the standard Go unit testing
framework. These tests are primarily devoted to holistically testing the
decoder and encoder.
The second type of testing is used to verify the implementation's adherence
to the TOML specification. These tests have been factored into their own
project: https://github.com/BurntSushi/toml-test
The reason the tests are in a separate project is so that they can be used by
any implementation of TOML. Namely, it is language agnostic.
*/
package toml

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package toml
import (
"bufio"
"errors"
"fmt"
"io"
"reflect"
"sort"
"strconv"
"strings"
"time"
)
type tomlEncodeError struct{ error }
var (
errArrayMixedElementTypes = errors.New(
"toml: cannot encode array with mixed element types")
errArrayNilElement = errors.New(
"toml: cannot encode array with nil element")
errNonString = errors.New(
"toml: cannot encode a map with non-string key type")
errAnonNonStruct = errors.New(
"toml: cannot encode an anonymous field that is not a struct")
errArrayNoTable = errors.New(
"toml: TOML array element cannot contain a table")
errNoKey = errors.New(
"toml: top-level values must be Go maps or structs")
errAnything = errors.New("") // used in testing
)
var quotedReplacer = strings.NewReplacer(
"\t", "\\t",
"\n", "\\n",
"\r", "\\r",
"\"", "\\\"",
"\\", "\\\\",
)
// Encoder controls the encoding of Go values to a TOML document to some
// io.Writer.
//
// The indentation level can be controlled with the Indent field.
type Encoder struct {
// A single indentation level. By default it is two spaces.
Indent string
// hasWritten is whether we have written any output to w yet.
hasWritten bool
w *bufio.Writer
}
// NewEncoder returns a TOML encoder that encodes Go values to the io.Writer
// given. By default, a single indentation level is 2 spaces.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{
w: bufio.NewWriter(w),
Indent: " ",
}
}
// Encode writes a TOML representation of the Go value to the underlying
// io.Writer. If the value given cannot be encoded to a valid TOML document,
// then an error is returned.
//
// The mapping between Go values and TOML values should be precisely the same
// as for the Decode* functions. Similarly, the TextMarshaler interface is
// supported by encoding the resulting bytes as strings. (If you want to write
// arbitrary binary data then you will need to use something like base64 since
// TOML does not have any binary types.)
//
// When encoding TOML hashes (i.e., Go maps or structs), keys without any
// sub-hashes are encoded first.
//
// If a Go map is encoded, then its keys are sorted alphabetically for
// deterministic output. More control over this behavior may be provided if
// there is demand for it.
//
// Encoding Go values without a corresponding TOML representation---like map
// types with non-string keys---will cause an error to be returned. Similarly
// for mixed arrays/slices, arrays/slices with nil elements, embedded
// non-struct types and nested slices containing maps or structs.
// (e.g., [][]map[string]string is not allowed but []map[string]string is OK
// and so is []map[string][]string.)
func (enc *Encoder) Encode(v interface{}) error {
rv := eindirect(reflect.ValueOf(v))
if err := enc.safeEncode(Key([]string{}), rv); err != nil {
return err
}
return enc.w.Flush()
}
func (enc *Encoder) safeEncode(key Key, rv reflect.Value) (err error) {
defer func() {
if r := recover(); r != nil {
if terr, ok := r.(tomlEncodeError); ok {
err = terr.error
return
}
panic(r)
}
}()
enc.encode(key, rv)
return nil
}
func (enc *Encoder) encode(key Key, rv reflect.Value) {
// Special case. Time needs to be in ISO8601 format.
// Special case. If we can marshal the type to text, then we used that.
// Basically, this prevents the encoder for handling these types as
// generic structs (or whatever the underlying type of a TextMarshaler is).
switch rv.Interface().(type) {
case time.Time, TextMarshaler:
enc.keyEqElement(key, rv)
return
}
k := rv.Kind()
switch k {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64,
reflect.Float32, reflect.Float64, reflect.String, reflect.Bool:
enc.keyEqElement(key, rv)
case reflect.Array, reflect.Slice:
if typeEqual(tomlArrayHash, tomlTypeOfGo(rv)) {
enc.eArrayOfTables(key, rv)
} else {
enc.keyEqElement(key, rv)
}
case reflect.Interface:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Map:
if rv.IsNil() {
return
}
enc.eTable(key, rv)
case reflect.Ptr:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Struct:
enc.eTable(key, rv)
default:
panic(e("unsupported type for key '%s': %s", key, k))
}
}
// eElement encodes any value that can be an array element (primitives and
// arrays).
func (enc *Encoder) eElement(rv reflect.Value) {
switch v := rv.Interface().(type) {
case time.Time:
// Special case time.Time as a primitive. Has to come before
// TextMarshaler below because time.Time implements
// encoding.TextMarshaler, but we need to always use UTC.
enc.wf(v.UTC().Format("2006-01-02T15:04:05Z"))
return
case TextMarshaler:
// Special case. Use text marshaler if it's available for this value.
if s, err := v.MarshalText(); err != nil {
encPanic(err)
} else {
enc.writeQuoted(string(s))
}
return
}
switch rv.Kind() {
case reflect.Bool:
enc.wf(strconv.FormatBool(rv.Bool()))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64:
enc.wf(strconv.FormatInt(rv.Int(), 10))
case reflect.Uint, reflect.Uint8, reflect.Uint16,
reflect.Uint32, reflect.Uint64:
enc.wf(strconv.FormatUint(rv.Uint(), 10))
case reflect.Float32:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 32)))
case reflect.Float64:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 64)))
case reflect.Array, reflect.Slice:
enc.eArrayOrSliceElement(rv)
case reflect.Interface:
enc.eElement(rv.Elem())
case reflect.String:
enc.writeQuoted(rv.String())
default:
panic(e("unexpected primitive type: %s", rv.Kind()))
}
}
// By the TOML spec, all floats must have a decimal with at least one
// number on either side.
func floatAddDecimal(fstr string) string {
if !strings.Contains(fstr, ".") {
return fstr + ".0"
}
return fstr
}
func (enc *Encoder) writeQuoted(s string) {
enc.wf("\"%s\"", quotedReplacer.Replace(s))
}
func (enc *Encoder) eArrayOrSliceElement(rv reflect.Value) {
length := rv.Len()
enc.wf("[")
for i := 0; i < length; i++ {
elem := rv.Index(i)
enc.eElement(elem)
if i != length-1 {
enc.wf(", ")
}
}
enc.wf("]")
}
func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
for i := 0; i < rv.Len(); i++ {
trv := rv.Index(i)
if isNil(trv) {
continue
}
panicIfInvalidKey(key)
enc.newline()
enc.wf("%s[[%s]]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
enc.eMapOrStruct(key, trv)
}
}
func (enc *Encoder) eTable(key Key, rv reflect.Value) {
panicIfInvalidKey(key)
if len(key) == 1 {
// Output an extra new line between top-level tables.
// (The newline isn't written if nothing else has been written though.)
enc.newline()
}
if len(key) > 0 {
enc.wf("%s[%s]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
}
enc.eMapOrStruct(key, rv)
}
func (enc *Encoder) eMapOrStruct(key Key, rv reflect.Value) {
switch rv := eindirect(rv); rv.Kind() {
case reflect.Map:
enc.eMap(key, rv)
case reflect.Struct:
enc.eStruct(key, rv)
default:
panic("eTable: unhandled reflect.Value Kind: " + rv.Kind().String())
}
}
func (enc *Encoder) eMap(key Key, rv reflect.Value) {
rt := rv.Type()
if rt.Key().Kind() != reflect.String {
encPanic(errNonString)
}
// Sort keys so that we have deterministic output. And write keys directly
// underneath this key first, before writing sub-structs or sub-maps.
var mapKeysDirect, mapKeysSub []string
for _, mapKey := range rv.MapKeys() {
k := mapKey.String()
if typeIsHash(tomlTypeOfGo(rv.MapIndex(mapKey))) {
mapKeysSub = append(mapKeysSub, k)
} else {
mapKeysDirect = append(mapKeysDirect, k)
}
}
var writeMapKeys = func(mapKeys []string) {
sort.Strings(mapKeys)
for _, mapKey := range mapKeys {
mrv := rv.MapIndex(reflect.ValueOf(mapKey))
if isNil(mrv) {
// Don't write anything for nil fields.
continue
}
enc.encode(key.add(mapKey), mrv)
}
}
writeMapKeys(mapKeysDirect)
writeMapKeys(mapKeysSub)
}
func (enc *Encoder) eStruct(key Key, rv reflect.Value) {
// Write keys for fields directly under this key first, because if we write
// a field that creates a new table, then all keys under it will be in that
// table (not the one we're writing here).
rt := rv.Type()
var fieldsDirect, fieldsSub [][]int
var addFields func(rt reflect.Type, rv reflect.Value, start []int)
addFields = func(rt reflect.Type, rv reflect.Value, start []int) {
for i := 0; i < rt.NumField(); i++ {
f := rt.Field(i)
// skip unexported fields
if f.PkgPath != "" && !f.Anonymous {
continue
}
frv := rv.Field(i)
if f.Anonymous {
t := f.Type
switch t.Kind() {
case reflect.Struct:
// Treat anonymous struct fields with
// tag names as though they are not
// anonymous, like encoding/json does.
if getOptions(f.Tag).name == "" {
addFields(t, frv, f.Index)
continue
}
case reflect.Ptr:
if t.Elem().Kind() == reflect.Struct &&
getOptions(f.Tag).name == "" {
if !frv.IsNil() {
addFields(t.Elem(), frv.Elem(), f.Index)
}
continue
}
// Fall through to the normal field encoding logic below
// for non-struct anonymous fields.
}
}
if typeIsHash(tomlTypeOfGo(frv)) {
fieldsSub = append(fieldsSub, append(start, f.Index...))
} else {
fieldsDirect = append(fieldsDirect, append(start, f.Index...))
}
}
}
addFields(rt, rv, nil)
var writeFields = func(fields [][]int) {
for _, fieldIndex := range fields {
sft := rt.FieldByIndex(fieldIndex)
sf := rv.FieldByIndex(fieldIndex)
if isNil(sf) {
// Don't write anything for nil fields.
continue
}
opts := getOptions(sft.Tag)
if opts.skip {
continue
}
keyName := sft.Name
if opts.name != "" {
keyName = opts.name
}
if opts.omitempty && isEmpty(sf) {
continue
}
if opts.omitzero && isZero(sf) {
continue
}
enc.encode(key.add(keyName), sf)
}
}
writeFields(fieldsDirect)
writeFields(fieldsSub)
}
// tomlTypeName returns the TOML type name of the Go value's type. It is
// used to determine whether the types of array elements are mixed (which is
// forbidden). If the Go value is nil, then it is illegal for it to be an array
// element, and valueIsNil is returned as true.
// Returns the TOML type of a Go value. The type may be `nil`, which means
// no concrete TOML type could be found.
func tomlTypeOfGo(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() {
return nil
}
switch rv.Kind() {
case reflect.Bool:
return tomlBool
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64:
return tomlInteger
case reflect.Float32, reflect.Float64:
return tomlFloat
case reflect.Array, reflect.Slice:
if typeEqual(tomlHash, tomlArrayType(rv)) {
return tomlArrayHash
}
return tomlArray
case reflect.Ptr, reflect.Interface:
return tomlTypeOfGo(rv.Elem())
case reflect.String:
return tomlString
case reflect.Map:
return tomlHash
case reflect.Struct:
switch rv.Interface().(type) {
case time.Time:
return tomlDatetime
case TextMarshaler:
return tomlString
default:
return tomlHash
}
default:
panic("unexpected reflect.Kind: " + rv.Kind().String())
}
}
// tomlArrayType returns the element type of a TOML array. The type returned
// may be nil if it cannot be determined (e.g., a nil slice or a zero length
// slize). This function may also panic if it finds a type that cannot be
// expressed in TOML (such as nil elements, heterogeneous arrays or directly
// nested arrays of tables).
func tomlArrayType(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() || rv.Len() == 0 {
return nil
}
firstType := tomlTypeOfGo(rv.Index(0))
if firstType == nil {
encPanic(errArrayNilElement)
}
rvlen := rv.Len()
for i := 1; i < rvlen; i++ {
elem := rv.Index(i)
switch elemType := tomlTypeOfGo(elem); {
case elemType == nil:
encPanic(errArrayNilElement)
case !typeEqual(firstType, elemType):
encPanic(errArrayMixedElementTypes)
}
}
// If we have a nested array, then we must make sure that the nested
// array contains ONLY primitives.
// This checks arbitrarily nested arrays.
if typeEqual(firstType, tomlArray) || typeEqual(firstType, tomlArrayHash) {
nest := tomlArrayType(eindirect(rv.Index(0)))
if typeEqual(nest, tomlHash) || typeEqual(nest, tomlArrayHash) {
encPanic(errArrayNoTable)
}
}
return firstType
}
type tagOptions struct {
skip bool // "-"
name string
omitempty bool
omitzero bool
}
func getOptions(tag reflect.StructTag) tagOptions {
t := tag.Get("toml")
if t == "-" {
return tagOptions{skip: true}
}
var opts tagOptions
parts := strings.Split(t, ",")
opts.name = parts[0]
for _, s := range parts[1:] {
switch s {
case "omitempty":
opts.omitempty = true
case "omitzero":
opts.omitzero = true
}
}
return opts
}
func isZero(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return rv.Uint() == 0
case reflect.Float32, reflect.Float64:
return rv.Float() == 0.0
}
return false
}
func isEmpty(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
return rv.Len() == 0
case reflect.Bool:
return !rv.Bool()
}
return false
}
func (enc *Encoder) newline() {
if enc.hasWritten {
enc.wf("\n")
}
}
func (enc *Encoder) keyEqElement(key Key, val reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
panicIfInvalidKey(key)
enc.wf("%s%s = ", enc.indentStr(key), key.maybeQuoted(len(key)-1))
enc.eElement(val)
enc.newline()
}
func (enc *Encoder) wf(format string, v ...interface{}) {
if _, err := fmt.Fprintf(enc.w, format, v...); err != nil {
encPanic(err)
}
enc.hasWritten = true
}
func (enc *Encoder) indentStr(key Key) string {
return strings.Repeat(enc.Indent, len(key)-1)
}
func encPanic(err error) {
panic(tomlEncodeError{err})
}
func eindirect(v reflect.Value) reflect.Value {
switch v.Kind() {
case reflect.Ptr, reflect.Interface:
return eindirect(v.Elem())
default:
return v
}
}
func isNil(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return rv.IsNil()
default:
return false
}
}
func panicIfInvalidKey(key Key) {
for _, k := range key {
if len(k) == 0 {
encPanic(e("Key '%s' is not a valid table name. Key names "+
"cannot be empty.", key.maybeQuotedAll()))
}
}
}
func isValidKeyName(s string) bool {
return len(s) != 0
}

19
vendor/github.com/BurntSushi/toml/encoding_types.go generated vendored Normal file
View File

@ -0,0 +1,19 @@
// +build go1.2
package toml
// In order to support Go 1.1, we define our own TextMarshaler and
// TextUnmarshaler types. For Go 1.2+, we just alias them with the
// standard library interfaces.
import (
"encoding"
)
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler encoding.TextMarshaler
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler encoding.TextUnmarshaler

18
vendor/github.com/BurntSushi/toml/encoding_types_1.1.go generated vendored Normal file
View File

@ -0,0 +1,18 @@
// +build !go1.2
package toml
// These interfaces were introduced in Go 1.2, so we add them manually when
// compiling for Go 1.1.
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler interface {
MarshalText() (text []byte, err error)
}
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler interface {
UnmarshalText(text []byte) error
}

858
vendor/github.com/BurntSushi/toml/lex.go generated vendored Normal file
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@ -0,0 +1,858 @@
package toml
import (
"fmt"
"strings"
"unicode"
"unicode/utf8"
)
type itemType int
const (
itemError itemType = iota
itemNIL // used in the parser to indicate no type
itemEOF
itemText
itemString
itemRawString
itemMultilineString
itemRawMultilineString
itemBool
itemInteger
itemFloat
itemDatetime
itemArray // the start of an array
itemArrayEnd
itemTableStart
itemTableEnd
itemArrayTableStart
itemArrayTableEnd
itemKeyStart
itemCommentStart
)
const (
eof = 0
tableStart = '['
tableEnd = ']'
arrayTableStart = '['
arrayTableEnd = ']'
tableSep = '.'
keySep = '='
arrayStart = '['
arrayEnd = ']'
arrayValTerm = ','
commentStart = '#'
stringStart = '"'
stringEnd = '"'
rawStringStart = '\''
rawStringEnd = '\''
)
type stateFn func(lx *lexer) stateFn
type lexer struct {
input string
start int
pos int
width int
line int
state stateFn
items chan item
// A stack of state functions used to maintain context.
// The idea is to reuse parts of the state machine in various places.
// For example, values can appear at the top level or within arbitrarily
// nested arrays. The last state on the stack is used after a value has
// been lexed. Similarly for comments.
stack []stateFn
}
type item struct {
typ itemType
val string
line int
}
func (lx *lexer) nextItem() item {
for {
select {
case item := <-lx.items:
return item
default:
lx.state = lx.state(lx)
}
}
}
func lex(input string) *lexer {
lx := &lexer{
input: input + "\n",
state: lexTop,
line: 1,
items: make(chan item, 10),
stack: make([]stateFn, 0, 10),
}
return lx
}
func (lx *lexer) push(state stateFn) {
lx.stack = append(lx.stack, state)
}
func (lx *lexer) pop() stateFn {
if len(lx.stack) == 0 {
return lx.errorf("BUG in lexer: no states to pop.")
}
last := lx.stack[len(lx.stack)-1]
lx.stack = lx.stack[0 : len(lx.stack)-1]
return last
}
func (lx *lexer) current() string {
return lx.input[lx.start:lx.pos]
}
func (lx *lexer) emit(typ itemType) {
lx.items <- item{typ, lx.current(), lx.line}
lx.start = lx.pos
}
func (lx *lexer) emitTrim(typ itemType) {
lx.items <- item{typ, strings.TrimSpace(lx.current()), lx.line}
lx.start = lx.pos
}
func (lx *lexer) next() (r rune) {
if lx.pos >= len(lx.input) {
lx.width = 0
return eof
}
if lx.input[lx.pos] == '\n' {
lx.line++
}
r, lx.width = utf8.DecodeRuneInString(lx.input[lx.pos:])
lx.pos += lx.width
return r
}
// ignore skips over the pending input before this point.
func (lx *lexer) ignore() {
lx.start = lx.pos
}
// backup steps back one rune. Can be called only once per call of next.
func (lx *lexer) backup() {
lx.pos -= lx.width
if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
lx.line--
}
}
// accept consumes the next rune if it's equal to `valid`.
func (lx *lexer) accept(valid rune) bool {
if lx.next() == valid {
return true
}
lx.backup()
return false
}
// peek returns but does not consume the next rune in the input.
func (lx *lexer) peek() rune {
r := lx.next()
lx.backup()
return r
}
// skip ignores all input that matches the given predicate.
func (lx *lexer) skip(pred func(rune) bool) {
for {
r := lx.next()
if pred(r) {
continue
}
lx.backup()
lx.ignore()
return
}
}
// errorf stops all lexing by emitting an error and returning `nil`.
// Note that any value that is a character is escaped if it's a special
// character (new lines, tabs, etc.).
func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
lx.items <- item{
itemError,
fmt.Sprintf(format, values...),
lx.line,
}
return nil
}
// lexTop consumes elements at the top level of TOML data.
func lexTop(lx *lexer) stateFn {
r := lx.next()
if isWhitespace(r) || isNL(r) {
return lexSkip(lx, lexTop)
}
switch r {
case commentStart:
lx.push(lexTop)
return lexCommentStart
case tableStart:
return lexTableStart
case eof:
if lx.pos > lx.start {
return lx.errorf("Unexpected EOF.")
}
lx.emit(itemEOF)
return nil
}
// At this point, the only valid item can be a key, so we back up
// and let the key lexer do the rest.
lx.backup()
lx.push(lexTopEnd)
return lexKeyStart
}
// lexTopEnd is entered whenever a top-level item has been consumed. (A value
// or a table.) It must see only whitespace, and will turn back to lexTop
// upon a new line. If it sees EOF, it will quit the lexer successfully.
func lexTopEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case r == commentStart:
// a comment will read to a new line for us.
lx.push(lexTop)
return lexCommentStart
case isWhitespace(r):
return lexTopEnd
case isNL(r):
lx.ignore()
return lexTop
case r == eof:
lx.ignore()
return lexTop
}
return lx.errorf("Expected a top-level item to end with a new line, "+
"comment or EOF, but got %q instead.", r)
}
// lexTable lexes the beginning of a table. Namely, it makes sure that
// it starts with a character other than '.' and ']'.
// It assumes that '[' has already been consumed.
// It also handles the case that this is an item in an array of tables.
// e.g., '[[name]]'.
func lexTableStart(lx *lexer) stateFn {
if lx.peek() == arrayTableStart {
lx.next()
lx.emit(itemArrayTableStart)
lx.push(lexArrayTableEnd)
} else {
lx.emit(itemTableStart)
lx.push(lexTableEnd)
}
return lexTableNameStart
}
func lexTableEnd(lx *lexer) stateFn {
lx.emit(itemTableEnd)
return lexTopEnd
}
func lexArrayTableEnd(lx *lexer) stateFn {
if r := lx.next(); r != arrayTableEnd {
return lx.errorf("Expected end of table array name delimiter %q, "+
"but got %q instead.", arrayTableEnd, r)
}
lx.emit(itemArrayTableEnd)
return lexTopEnd
}
func lexTableNameStart(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.peek(); {
case r == tableEnd || r == eof:
return lx.errorf("Unexpected end of table name. (Table names cannot " +
"be empty.)")
case r == tableSep:
return lx.errorf("Unexpected table separator. (Table names cannot " +
"be empty.)")
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.push(lexTableNameEnd)
return lexValue // reuse string lexing
default:
return lexBareTableName
}
}
// lexBareTableName lexes the name of a table. It assumes that at least one
// valid character for the table has already been read.
func lexBareTableName(lx *lexer) stateFn {
r := lx.next()
if isBareKeyChar(r) {
return lexBareTableName
}
lx.backup()
lx.emit(itemText)
return lexTableNameEnd
}
// lexTableNameEnd reads the end of a piece of a table name, optionally
// consuming whitespace.
func lexTableNameEnd(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.next(); {
case isWhitespace(r):
return lexTableNameEnd
case r == tableSep:
lx.ignore()
return lexTableNameStart
case r == tableEnd:
return lx.pop()
default:
return lx.errorf("Expected '.' or ']' to end table name, but got %q "+
"instead.", r)
}
}
// lexKeyStart consumes a key name up until the first non-whitespace character.
// lexKeyStart will ignore whitespace.
func lexKeyStart(lx *lexer) stateFn {
r := lx.peek()
switch {
case r == keySep:
return lx.errorf("Unexpected key separator %q.", keySep)
case isWhitespace(r) || isNL(r):
lx.next()
return lexSkip(lx, lexKeyStart)
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.emit(itemKeyStart)
lx.push(lexKeyEnd)
return lexValue // reuse string lexing
default:
lx.ignore()
lx.emit(itemKeyStart)
return lexBareKey
}
}
// lexBareKey consumes the text of a bare key. Assumes that the first character
// (which is not whitespace) has not yet been consumed.
func lexBareKey(lx *lexer) stateFn {
switch r := lx.next(); {
case isBareKeyChar(r):
return lexBareKey
case isWhitespace(r):
lx.backup()
lx.emit(itemText)
return lexKeyEnd
case r == keySep:
lx.backup()
lx.emit(itemText)
return lexKeyEnd
default:
return lx.errorf("Bare keys cannot contain %q.", r)
}
}
// lexKeyEnd consumes the end of a key and trims whitespace (up to the key
// separator).
func lexKeyEnd(lx *lexer) stateFn {
switch r := lx.next(); {
case r == keySep:
return lexSkip(lx, lexValue)
case isWhitespace(r):
return lexSkip(lx, lexKeyEnd)
default:
return lx.errorf("Expected key separator %q, but got %q instead.",
keySep, r)
}
}
// lexValue starts the consumption of a value anywhere a value is expected.
// lexValue will ignore whitespace.
// After a value is lexed, the last state on the next is popped and returned.
func lexValue(lx *lexer) stateFn {
// We allow whitespace to precede a value, but NOT new lines.
// In array syntax, the array states are responsible for ignoring new
// lines.
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexValue)
case isDigit(r):
lx.backup() // avoid an extra state and use the same as above
return lexNumberOrDateStart
}
switch r {
case arrayStart:
lx.ignore()
lx.emit(itemArray)
return lexArrayValue
case stringStart:
if lx.accept(stringStart) {
if lx.accept(stringStart) {
lx.ignore() // Ignore """
return lexMultilineString
}
lx.backup()
}
lx.ignore() // ignore the '"'
return lexString
case rawStringStart:
if lx.accept(rawStringStart) {
if lx.accept(rawStringStart) {
lx.ignore() // Ignore """
return lexMultilineRawString
}
lx.backup()
}
lx.ignore() // ignore the "'"
return lexRawString
case '+', '-':
return lexNumberStart
case '.': // special error case, be kind to users
return lx.errorf("Floats must start with a digit, not '.'.")
}
if unicode.IsLetter(r) {
// Be permissive here; lexBool will give a nice error if the
// user wrote something like
// x = foo
// (i.e. not 'true' or 'false' but is something else word-like.)
lx.backup()
return lexBool
}
return lx.errorf("Expected value but found %q instead.", r)
}
// lexArrayValue consumes one value in an array. It assumes that '[' or ','
// have already been consumed. All whitespace and new lines are ignored.
func lexArrayValue(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValue)
case r == commentStart:
lx.push(lexArrayValue)
return lexCommentStart
case r == arrayValTerm:
return lx.errorf("Unexpected array value terminator %q.",
arrayValTerm)
case r == arrayEnd:
return lexArrayEnd
}
lx.backup()
lx.push(lexArrayValueEnd)
return lexValue
}
// lexArrayValueEnd consumes the cruft between values of an array. Namely,
// it ignores whitespace and expects either a ',' or a ']'.
func lexArrayValueEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValueEnd)
case r == commentStart:
lx.push(lexArrayValueEnd)
return lexCommentStart
case r == arrayValTerm:
lx.ignore()
return lexArrayValue // move on to the next value
case r == arrayEnd:
return lexArrayEnd
}
return lx.errorf("Expected an array value terminator %q or an array "+
"terminator %q, but got %q instead.", arrayValTerm, arrayEnd, r)
}
// lexArrayEnd finishes the lexing of an array. It assumes that a ']' has
// just been consumed.
func lexArrayEnd(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemArrayEnd)
return lx.pop()
}
// lexString consumes the inner contents of a string. It assumes that the
// beginning '"' has already been consumed and ignored.
func lexString(lx *lexer) stateFn {
r := lx.next()
switch {
case isNL(r):
return lx.errorf("Strings cannot contain new lines.")
case r == '\\':
lx.push(lexString)
return lexStringEscape
case r == stringEnd:
lx.backup()
lx.emit(itemString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexString
}
// lexMultilineString consumes the inner contents of a string. It assumes that
// the beginning '"""' has already been consumed and ignored.
func lexMultilineString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == '\\':
return lexMultilineStringEscape
case r == stringEnd:
if lx.accept(stringEnd) {
if lx.accept(stringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineString
}
// lexRawString consumes a raw string. Nothing can be escaped in such a string.
// It assumes that the beginning "'" has already been consumed and ignored.
func lexRawString(lx *lexer) stateFn {
r := lx.next()
switch {
case isNL(r):
return lx.errorf("Strings cannot contain new lines.")
case r == rawStringEnd:
lx.backup()
lx.emit(itemRawString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexRawString
}
// lexMultilineRawString consumes a raw string. Nothing can be escaped in such
// a string. It assumes that the beginning "'" has already been consumed and
// ignored.
func lexMultilineRawString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == rawStringEnd:
if lx.accept(rawStringEnd) {
if lx.accept(rawStringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemRawMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineRawString
}
// lexMultilineStringEscape consumes an escaped character. It assumes that the
// preceding '\\' has already been consumed.
func lexMultilineStringEscape(lx *lexer) stateFn {
// Handle the special case first:
if isNL(lx.next()) {
return lexMultilineString
}
lx.backup()
lx.push(lexMultilineString)
return lexStringEscape(lx)
}
func lexStringEscape(lx *lexer) stateFn {
r := lx.next()
switch r {
case 'b':
fallthrough
case 't':
fallthrough
case 'n':
fallthrough
case 'f':
fallthrough
case 'r':
fallthrough
case '"':
fallthrough
case '\\':
return lx.pop()
case 'u':
return lexShortUnicodeEscape
case 'U':
return lexLongUnicodeEscape
}
return lx.errorf("Invalid escape character %q. Only the following "+
"escape characters are allowed: "+
"\\b, \\t, \\n, \\f, \\r, \\\", \\/, \\\\, "+
"\\uXXXX and \\UXXXXXXXX.", r)
}
func lexShortUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 4; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf("Expected four hexadecimal digits after '\\u', "+
"but got '%s' instead.", lx.current())
}
}
return lx.pop()
}
func lexLongUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 8; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf("Expected eight hexadecimal digits after '\\U', "+
"but got '%s' instead.", lx.current())
}
}
return lx.pop()
}
// lexNumberOrDateStart consumes either an integer, a float, or datetime.
func lexNumberOrDateStart(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '_':
return lexNumber
case 'e', 'E':
return lexFloat
case '.':
return lx.errorf("Floats must start with a digit, not '.'.")
}
return lx.errorf("Expected a digit but got %q.", r)
}
// lexNumberOrDate consumes either an integer, float or datetime.
func lexNumberOrDate(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '-':
return lexDatetime
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexDatetime consumes a Datetime, to a first approximation.
// The parser validates that it matches one of the accepted formats.
func lexDatetime(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexDatetime
}
switch r {
case '-', 'T', ':', '.', 'Z':
return lexDatetime
}
lx.backup()
lx.emit(itemDatetime)
return lx.pop()
}
// lexNumberStart consumes either an integer or a float. It assumes that a sign
// has already been read, but that *no* digits have been consumed.
// lexNumberStart will move to the appropriate integer or float states.
func lexNumberStart(lx *lexer) stateFn {
// We MUST see a digit. Even floats have to start with a digit.
r := lx.next()
if !isDigit(r) {
if r == '.' {
return lx.errorf("Floats must start with a digit, not '.'.")
}
return lx.errorf("Expected a digit but got %q.", r)
}
return lexNumber
}
// lexNumber consumes an integer or a float after seeing the first digit.
func lexNumber(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumber
}
switch r {
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexFloat consumes the elements of a float. It allows any sequence of
// float-like characters, so floats emitted by the lexer are only a first
// approximation and must be validated by the parser.
func lexFloat(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexFloat
}
switch r {
case '_', '.', '-', '+', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemFloat)
return lx.pop()
}
// lexBool consumes a bool string: 'true' or 'false.
func lexBool(lx *lexer) stateFn {
var rs []rune
for {
r := lx.next()
if r == eof || isWhitespace(r) || isNL(r) {
lx.backup()
break
}
rs = append(rs, r)
}
s := string(rs)
switch s {
case "true", "false":
lx.emit(itemBool)
return lx.pop()
}
return lx.errorf("Expected value but found %q instead.", s)
}
// lexCommentStart begins the lexing of a comment. It will emit
// itemCommentStart and consume no characters, passing control to lexComment.
func lexCommentStart(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemCommentStart)
return lexComment
}
// lexComment lexes an entire comment. It assumes that '#' has been consumed.
// It will consume *up to* the first new line character, and pass control
// back to the last state on the stack.
func lexComment(lx *lexer) stateFn {
r := lx.peek()
if isNL(r) || r == eof {
lx.emit(itemText)
return lx.pop()
}
lx.next()
return lexComment
}
// lexSkip ignores all slurped input and moves on to the next state.
func lexSkip(lx *lexer, nextState stateFn) stateFn {
return func(lx *lexer) stateFn {
lx.ignore()
return nextState
}
}
// isWhitespace returns true if `r` is a whitespace character according
// to the spec.
func isWhitespace(r rune) bool {
return r == '\t' || r == ' '
}
func isNL(r rune) bool {
return r == '\n' || r == '\r'
}
func isDigit(r rune) bool {
return r >= '0' && r <= '9'
}
func isHexadecimal(r rune) bool {
return (r >= '0' && r <= '9') ||
(r >= 'a' && r <= 'f') ||
(r >= 'A' && r <= 'F')
}
func isBareKeyChar(r rune) bool {
return (r >= 'A' && r <= 'Z') ||
(r >= 'a' && r <= 'z') ||
(r >= '0' && r <= '9') ||
r == '_' ||
r == '-'
}
func (itype itemType) String() string {
switch itype {
case itemError:
return "Error"
case itemNIL:
return "NIL"
case itemEOF:
return "EOF"
case itemText:
return "Text"
case itemString, itemRawString, itemMultilineString, itemRawMultilineString:
return "String"
case itemBool:
return "Bool"
case itemInteger:
return "Integer"
case itemFloat:
return "Float"
case itemDatetime:
return "DateTime"
case itemTableStart:
return "TableStart"
case itemTableEnd:
return "TableEnd"
case itemKeyStart:
return "KeyStart"
case itemArray:
return "Array"
case itemArrayEnd:
return "ArrayEnd"
case itemCommentStart:
return "CommentStart"
}
panic(fmt.Sprintf("BUG: Unknown type '%d'.", int(itype)))
}
func (item item) String() string {
return fmt.Sprintf("(%s, %s)", item.typ.String(), item.val)
}

557
vendor/github.com/BurntSushi/toml/parse.go generated vendored Normal file
View File

@ -0,0 +1,557 @@
package toml
import (
"fmt"
"strconv"
"strings"
"time"
"unicode"
"unicode/utf8"
)
type parser struct {
mapping map[string]interface{}
types map[string]tomlType
lx *lexer
// A list of keys in the order that they appear in the TOML data.
ordered []Key
// the full key for the current hash in scope
context Key
// the base key name for everything except hashes
currentKey string
// rough approximation of line number
approxLine int
// A map of 'key.group.names' to whether they were created implicitly.
implicits map[string]bool
}
type parseError string
func (pe parseError) Error() string {
return string(pe)
}
func parse(data string) (p *parser, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
if err, ok = r.(parseError); ok {
return
}
panic(r)
}
}()
p = &parser{
mapping: make(map[string]interface{}),
types: make(map[string]tomlType),
lx: lex(data),
ordered: make([]Key, 0),
implicits: make(map[string]bool),
}
for {
item := p.next()
if item.typ == itemEOF {
break
}
p.topLevel(item)
}
return p, nil
}
func (p *parser) panicf(format string, v ...interface{}) {
msg := fmt.Sprintf("Near line %d (last key parsed '%s'): %s",
p.approxLine, p.current(), fmt.Sprintf(format, v...))
panic(parseError(msg))
}
func (p *parser) next() item {
it := p.lx.nextItem()
if it.typ == itemError {
p.panicf("%s", it.val)
}
return it
}
func (p *parser) bug(format string, v ...interface{}) {
panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
}
func (p *parser) expect(typ itemType) item {
it := p.next()
p.assertEqual(typ, it.typ)
return it
}
func (p *parser) assertEqual(expected, got itemType) {
if expected != got {
p.bug("Expected '%s' but got '%s'.", expected, got)
}
}
func (p *parser) topLevel(item item) {
switch item.typ {
case itemCommentStart:
p.approxLine = item.line
p.expect(itemText)
case itemTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemTableEnd, kg.typ)
p.establishContext(key, false)
p.setType("", tomlHash)
p.ordered = append(p.ordered, key)
case itemArrayTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemArrayTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemArrayTableEnd, kg.typ)
p.establishContext(key, true)
p.setType("", tomlArrayHash)
p.ordered = append(p.ordered, key)
case itemKeyStart:
kname := p.next()
p.approxLine = kname.line
p.currentKey = p.keyString(kname)
val, typ := p.value(p.next())
p.setValue(p.currentKey, val)
p.setType(p.currentKey, typ)
p.ordered = append(p.ordered, p.context.add(p.currentKey))
p.currentKey = ""
default:
p.bug("Unexpected type at top level: %s", item.typ)
}
}
// Gets a string for a key (or part of a key in a table name).
func (p *parser) keyString(it item) string {
switch it.typ {
case itemText:
return it.val
case itemString, itemMultilineString,
itemRawString, itemRawMultilineString:
s, _ := p.value(it)
return s.(string)
default:
p.bug("Unexpected key type: %s", it.typ)
panic("unreachable")
}
}
// value translates an expected value from the lexer into a Go value wrapped
// as an empty interface.
func (p *parser) value(it item) (interface{}, tomlType) {
switch it.typ {
case itemString:
return p.replaceEscapes(it.val), p.typeOfPrimitive(it)
case itemMultilineString:
trimmed := stripFirstNewline(stripEscapedWhitespace(it.val))
return p.replaceEscapes(trimmed), p.typeOfPrimitive(it)
case itemRawString:
return it.val, p.typeOfPrimitive(it)
case itemRawMultilineString:
return stripFirstNewline(it.val), p.typeOfPrimitive(it)
case itemBool:
switch it.val {
case "true":
return true, p.typeOfPrimitive(it)
case "false":
return false, p.typeOfPrimitive(it)
}
p.bug("Expected boolean value, but got '%s'.", it.val)
case itemInteger:
if !numUnderscoresOK(it.val) {
p.panicf("Invalid integer %q: underscores must be surrounded by digits",
it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseInt(val, 10, 64)
if err != nil {
// Distinguish integer values. Normally, it'd be a bug if the lexer
// provides an invalid integer, but it's possible that the number is
// out of range of valid values (which the lexer cannot determine).
// So mark the former as a bug but the latter as a legitimate user
// error.
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Integer '%s' is out of the range of 64-bit "+
"signed integers.", it.val)
} else {
p.bug("Expected integer value, but got '%s'.", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemFloat:
parts := strings.FieldsFunc(it.val, func(r rune) bool {
switch r {
case '.', 'e', 'E':
return true
}
return false
})
for _, part := range parts {
if !numUnderscoresOK(part) {
p.panicf("Invalid float %q: underscores must be "+
"surrounded by digits", it.val)
}
}
if !numPeriodsOK(it.val) {
// As a special case, numbers like '123.' or '1.e2',
// which are valid as far as Go/strconv are concerned,
// must be rejected because TOML says that a fractional
// part consists of '.' followed by 1+ digits.
p.panicf("Invalid float %q: '.' must be followed "+
"by one or more digits", it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseFloat(val, 64)
if err != nil {
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Float '%s' is out of the range of 64-bit "+
"IEEE-754 floating-point numbers.", it.val)
} else {
p.panicf("Invalid float value: %q", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemDatetime:
var t time.Time
var ok bool
var err error
for _, format := range []string{
"2006-01-02T15:04:05Z07:00",
"2006-01-02T15:04:05",
"2006-01-02",
} {
t, err = time.ParseInLocation(format, it.val, time.Local)
if err == nil {
ok = true
break
}
}
if !ok {
p.panicf("Invalid TOML Datetime: %q.", it.val)
}
return t, p.typeOfPrimitive(it)
case itemArray:
array := make([]interface{}, 0)
types := make([]tomlType, 0)
for it = p.next(); it.typ != itemArrayEnd; it = p.next() {
if it.typ == itemCommentStart {
p.expect(itemText)
continue
}
val, typ := p.value(it)
array = append(array, val)
types = append(types, typ)
}
return array, p.typeOfArray(types)
}
p.bug("Unexpected value type: %s", it.typ)
panic("unreachable")
}
// numUnderscoresOK checks whether each underscore in s is surrounded by
// characters that are not underscores.
func numUnderscoresOK(s string) bool {
accept := false
for _, r := range s {
if r == '_' {
if !accept {
return false
}
accept = false
continue
}
accept = true
}
return accept
}
// numPeriodsOK checks whether every period in s is followed by a digit.
func numPeriodsOK(s string) bool {
period := false
for _, r := range s {
if period && !isDigit(r) {
return false
}
period = r == '.'
}
return !period
}
// establishContext sets the current context of the parser,
// where the context is either a hash or an array of hashes. Which one is
// set depends on the value of the `array` parameter.
//
// Establishing the context also makes sure that the key isn't a duplicate, and
// will create implicit hashes automatically.
func (p *parser) establishContext(key Key, array bool) {
var ok bool
// Always start at the top level and drill down for our context.
hashContext := p.mapping
keyContext := make(Key, 0)
// We only need implicit hashes for key[0:-1]
for _, k := range key[0 : len(key)-1] {
_, ok = hashContext[k]
keyContext = append(keyContext, k)
// No key? Make an implicit hash and move on.
if !ok {
p.addImplicit(keyContext)
hashContext[k] = make(map[string]interface{})
}
// If the hash context is actually an array of tables, then set
// the hash context to the last element in that array.
//
// Otherwise, it better be a table, since this MUST be a key group (by
// virtue of it not being the last element in a key).
switch t := hashContext[k].(type) {
case []map[string]interface{}:
hashContext = t[len(t)-1]
case map[string]interface{}:
hashContext = t
default:
p.panicf("Key '%s' was already created as a hash.", keyContext)
}
}
p.context = keyContext
if array {
// If this is the first element for this array, then allocate a new
// list of tables for it.
k := key[len(key)-1]
if _, ok := hashContext[k]; !ok {
hashContext[k] = make([]map[string]interface{}, 0, 5)
}
// Add a new table. But make sure the key hasn't already been used
// for something else.
if hash, ok := hashContext[k].([]map[string]interface{}); ok {
hashContext[k] = append(hash, make(map[string]interface{}))
} else {
p.panicf("Key '%s' was already created and cannot be used as "+
"an array.", keyContext)
}
} else {
p.setValue(key[len(key)-1], make(map[string]interface{}))
}
p.context = append(p.context, key[len(key)-1])
}
// setValue sets the given key to the given value in the current context.
// It will make sure that the key hasn't already been defined, account for
// implicit key groups.
func (p *parser) setValue(key string, value interface{}) {
var tmpHash interface{}
var ok bool
hash := p.mapping
keyContext := make(Key, 0)
for _, k := range p.context {
keyContext = append(keyContext, k)
if tmpHash, ok = hash[k]; !ok {
p.bug("Context for key '%s' has not been established.", keyContext)
}
switch t := tmpHash.(type) {
case []map[string]interface{}:
// The context is a table of hashes. Pick the most recent table
// defined as the current hash.
hash = t[len(t)-1]
case map[string]interface{}:
hash = t
default:
p.bug("Expected hash to have type 'map[string]interface{}', but "+
"it has '%T' instead.", tmpHash)
}
}
keyContext = append(keyContext, key)
if _, ok := hash[key]; ok {
// Typically, if the given key has already been set, then we have
// to raise an error since duplicate keys are disallowed. However,
// it's possible that a key was previously defined implicitly. In this
// case, it is allowed to be redefined concretely. (See the
// `tests/valid/implicit-and-explicit-after.toml` test in `toml-test`.)
//
// But we have to make sure to stop marking it as an implicit. (So that
// another redefinition provokes an error.)
//
// Note that since it has already been defined (as a hash), we don't
// want to overwrite it. So our business is done.
if p.isImplicit(keyContext) {
p.removeImplicit(keyContext)
return
}
// Otherwise, we have a concrete key trying to override a previous
// key, which is *always* wrong.
p.panicf("Key '%s' has already been defined.", keyContext)
}
hash[key] = value
}
// setType sets the type of a particular value at a given key.
// It should be called immediately AFTER setValue.
//
// Note that if `key` is empty, then the type given will be applied to the
// current context (which is either a table or an array of tables).
func (p *parser) setType(key string, typ tomlType) {
keyContext := make(Key, 0, len(p.context)+1)
for _, k := range p.context {
keyContext = append(keyContext, k)
}
if len(key) > 0 { // allow type setting for hashes
keyContext = append(keyContext, key)
}
p.types[keyContext.String()] = typ
}
// addImplicit sets the given Key as having been created implicitly.
func (p *parser) addImplicit(key Key) {
p.implicits[key.String()] = true
}
// removeImplicit stops tagging the given key as having been implicitly
// created.
func (p *parser) removeImplicit(key Key) {
p.implicits[key.String()] = false
}
// isImplicit returns true if the key group pointed to by the key was created
// implicitly.
func (p *parser) isImplicit(key Key) bool {
return p.implicits[key.String()]
}
// current returns the full key name of the current context.
func (p *parser) current() string {
if len(p.currentKey) == 0 {
return p.context.String()
}
if len(p.context) == 0 {
return p.currentKey
}
return fmt.Sprintf("%s.%s", p.context, p.currentKey)
}
func stripFirstNewline(s string) string {
if len(s) == 0 || s[0] != '\n' {
return s
}
return s[1:]
}
func stripEscapedWhitespace(s string) string {
esc := strings.Split(s, "\\\n")
if len(esc) > 1 {
for i := 1; i < len(esc); i++ {
esc[i] = strings.TrimLeftFunc(esc[i], unicode.IsSpace)
}
}
return strings.Join(esc, "")
}
func (p *parser) replaceEscapes(str string) string {
var replaced []rune
s := []byte(str)
r := 0
for r < len(s) {
if s[r] != '\\' {
c, size := utf8.DecodeRune(s[r:])
r += size
replaced = append(replaced, c)
continue
}
r += 1
if r >= len(s) {
p.bug("Escape sequence at end of string.")
return ""
}
switch s[r] {
default:
p.bug("Expected valid escape code after \\, but got %q.", s[r])
return ""
case 'b':
replaced = append(replaced, rune(0x0008))
r += 1
case 't':
replaced = append(replaced, rune(0x0009))
r += 1
case 'n':
replaced = append(replaced, rune(0x000A))
r += 1
case 'f':
replaced = append(replaced, rune(0x000C))
r += 1
case 'r':
replaced = append(replaced, rune(0x000D))
r += 1
case '"':
replaced = append(replaced, rune(0x0022))
r += 1
case '\\':
replaced = append(replaced, rune(0x005C))
r += 1
case 'u':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+5). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+5])
replaced = append(replaced, escaped)
r += 5
case 'U':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+9). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+9])
replaced = append(replaced, escaped)
r += 9
}
}
return string(replaced)
}
func (p *parser) asciiEscapeToUnicode(bs []byte) rune {
s := string(bs)
hex, err := strconv.ParseUint(strings.ToLower(s), 16, 32)
if err != nil {
p.bug("Could not parse '%s' as a hexadecimal number, but the "+
"lexer claims it's OK: %s", s, err)
}
if !utf8.ValidRune(rune(hex)) {
p.panicf("Escaped character '\\u%s' is not valid UTF-8.", s)
}
return rune(hex)
}
func isStringType(ty itemType) bool {
return ty == itemString || ty == itemMultilineString ||
ty == itemRawString || ty == itemRawMultilineString
}

91
vendor/github.com/BurntSushi/toml/type_check.go generated vendored Normal file
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@ -0,0 +1,91 @@
package toml
// tomlType represents any Go type that corresponds to a TOML type.
// While the first draft of the TOML spec has a simplistic type system that
// probably doesn't need this level of sophistication, we seem to be militating
// toward adding real composite types.
type tomlType interface {
typeString() string
}
// typeEqual accepts any two types and returns true if they are equal.
func typeEqual(t1, t2 tomlType) bool {
if t1 == nil || t2 == nil {
return false
}
return t1.typeString() == t2.typeString()
}
func typeIsHash(t tomlType) bool {
return typeEqual(t, tomlHash) || typeEqual(t, tomlArrayHash)
}
type tomlBaseType string
func (btype tomlBaseType) typeString() string {
return string(btype)
}
func (btype tomlBaseType) String() string {
return btype.typeString()
}
var (
tomlInteger tomlBaseType = "Integer"
tomlFloat tomlBaseType = "Float"
tomlDatetime tomlBaseType = "Datetime"
tomlString tomlBaseType = "String"
tomlBool tomlBaseType = "Bool"
tomlArray tomlBaseType = "Array"
tomlHash tomlBaseType = "Hash"
tomlArrayHash tomlBaseType = "ArrayHash"
)
// typeOfPrimitive returns a tomlType of any primitive value in TOML.
// Primitive values are: Integer, Float, Datetime, String and Bool.
//
// Passing a lexer item other than the following will cause a BUG message
// to occur: itemString, itemBool, itemInteger, itemFloat, itemDatetime.
func (p *parser) typeOfPrimitive(lexItem item) tomlType {
switch lexItem.typ {
case itemInteger:
return tomlInteger
case itemFloat:
return tomlFloat
case itemDatetime:
return tomlDatetime
case itemString:
return tomlString
case itemMultilineString:
return tomlString
case itemRawString:
return tomlString
case itemRawMultilineString:
return tomlString
case itemBool:
return tomlBool
}
p.bug("Cannot infer primitive type of lex item '%s'.", lexItem)
panic("unreachable")
}
// typeOfArray returns a tomlType for an array given a list of types of its
// values.
//
// In the current spec, if an array is homogeneous, then its type is always
// "Array". If the array is not homogeneous, an error is generated.
func (p *parser) typeOfArray(types []tomlType) tomlType {
// Empty arrays are cool.
if len(types) == 0 {
return tomlArray
}
theType := types[0]
for _, t := range types[1:] {
if !typeEqual(theType, t) {
p.panicf("Array contains values of type '%s' and '%s', but "+
"arrays must be homogeneous.", theType, t)
}
}
return tomlArray
}

242
vendor/github.com/BurntSushi/toml/type_fields.go generated vendored Normal file
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@ -0,0 +1,242 @@
package toml
// Struct field handling is adapted from code in encoding/json:
//
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the Go distribution.
import (
"reflect"
"sort"
"sync"
)
// A field represents a single field found in a struct.
type field struct {
name string // the name of the field (`toml` tag included)
tag bool // whether field has a `toml` tag
index []int // represents the depth of an anonymous field
typ reflect.Type // the type of the field
}
// byName sorts field by name, breaking ties with depth,
// then breaking ties with "name came from toml tag", then
// breaking ties with index sequence.
type byName []field
func (x byName) Len() int { return len(x) }
func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byName) Less(i, j int) bool {
if x[i].name != x[j].name {
return x[i].name < x[j].name
}
if len(x[i].index) != len(x[j].index) {
return len(x[i].index) < len(x[j].index)
}
if x[i].tag != x[j].tag {
return x[i].tag
}
return byIndex(x).Less(i, j)
}
// byIndex sorts field by index sequence.
type byIndex []field
func (x byIndex) Len() int { return len(x) }
func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byIndex) Less(i, j int) bool {
for k, xik := range x[i].index {
if k >= len(x[j].index) {
return false
}
if xik != x[j].index[k] {
return xik < x[j].index[k]
}
}
return len(x[i].index) < len(x[j].index)
}
// typeFields returns a list of fields that TOML should recognize for the given
// type. The algorithm is breadth-first search over the set of structs to
// include - the top struct and then any reachable anonymous structs.
func typeFields(t reflect.Type) []field {
// Anonymous fields to explore at the current level and the next.
current := []field{}
next := []field{{typ: t}}
// Count of queued names for current level and the next.
count := map[reflect.Type]int{}
nextCount := map[reflect.Type]int{}
// Types already visited at an earlier level.
visited := map[reflect.Type]bool{}
// Fields found.
var fields []field
for len(next) > 0 {
current, next = next, current[:0]
count, nextCount = nextCount, map[reflect.Type]int{}
for _, f := range current {
if visited[f.typ] {
continue
}
visited[f.typ] = true
// Scan f.typ for fields to include.
for i := 0; i < f.typ.NumField(); i++ {
sf := f.typ.Field(i)
if sf.PkgPath != "" && !sf.Anonymous { // unexported
continue
}
opts := getOptions(sf.Tag)
if opts.skip {
continue
}
index := make([]int, len(f.index)+1)
copy(index, f.index)
index[len(f.index)] = i
ft := sf.Type
if ft.Name() == "" && ft.Kind() == reflect.Ptr {
// Follow pointer.
ft = ft.Elem()
}
// Record found field and index sequence.
if opts.name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
tagged := opts.name != ""
name := opts.name
if name == "" {
name = sf.Name
}
fields = append(fields, field{name, tagged, index, ft})
if count[f.typ] > 1 {
// If there were multiple instances, add a second,
// so that the annihilation code will see a duplicate.
// It only cares about the distinction between 1 or 2,
// so don't bother generating any more copies.
fields = append(fields, fields[len(fields)-1])
}
continue
}
// Record new anonymous struct to explore in next round.
nextCount[ft]++
if nextCount[ft] == 1 {
f := field{name: ft.Name(), index: index, typ: ft}
next = append(next, f)
}
}
}
}
sort.Sort(byName(fields))
// Delete all fields that are hidden by the Go rules for embedded fields,
// except that fields with TOML tags are promoted.
// The fields are sorted in primary order of name, secondary order
// of field index length. Loop over names; for each name, delete
// hidden fields by choosing the one dominant field that survives.
out := fields[:0]
for advance, i := 0, 0; i < len(fields); i += advance {
// One iteration per name.
// Find the sequence of fields with the name of this first field.
fi := fields[i]
name := fi.name
for advance = 1; i+advance < len(fields); advance++ {
fj := fields[i+advance]
if fj.name != name {
break
}
}
if advance == 1 { // Only one field with this name
out = append(out, fi)
continue
}
dominant, ok := dominantField(fields[i : i+advance])
if ok {
out = append(out, dominant)
}
}
fields = out
sort.Sort(byIndex(fields))
return fields
}
// dominantField looks through the fields, all of which are known to
// have the same name, to find the single field that dominates the
// others using Go's embedding rules, modified by the presence of
// TOML tags. If there are multiple top-level fields, the boolean
// will be false: This condition is an error in Go and we skip all
// the fields.
func dominantField(fields []field) (field, bool) {
// The fields are sorted in increasing index-length order. The winner
// must therefore be one with the shortest index length. Drop all
// longer entries, which is easy: just truncate the slice.
length := len(fields[0].index)
tagged := -1 // Index of first tagged field.
for i, f := range fields {
if len(f.index) > length {
fields = fields[:i]
break
}
if f.tag {
if tagged >= 0 {
// Multiple tagged fields at the same level: conflict.
// Return no field.
return field{}, false
}
tagged = i
}
}
if tagged >= 0 {
return fields[tagged], true
}
// All remaining fields have the same length. If there's more than one,
// we have a conflict (two fields named "X" at the same level) and we
// return no field.
if len(fields) > 1 {
return field{}, false
}
return fields[0], true
}
var fieldCache struct {
sync.RWMutex
m map[reflect.Type][]field
}
// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
func cachedTypeFields(t reflect.Type) []field {
fieldCache.RLock()
f := fieldCache.m[t]
fieldCache.RUnlock()
if f != nil {
return f
}
// Compute fields without lock.
// Might duplicate effort but won't hold other computations back.
f = typeFields(t)
if f == nil {
f = []field{}
}
fieldCache.Lock()
if fieldCache.m == nil {
fieldCache.m = map[reflect.Type][]field{}
}
fieldCache.m[t] = f
fieldCache.Unlock()
return f
}

28
vendor/gopkg.in/gcfg.v1/LICENSE generated vendored
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@ -1,28 +0,0 @@
Copyright (c) 2012 Péter Surányi. Portions 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.

118
vendor/gopkg.in/gcfg.v1/doc.go generated vendored
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@ -1,118 +0,0 @@
// Package gcfg reads "INI-style" text-based configuration files with
// "name=value" pairs grouped into sections (gcfg files).
//
// This package is still a work in progress; see the sections below for planned
// changes.
//
// Syntax
//
// The syntax is based on that used by git config:
// http://git-scm.com/docs/git-config#_syntax .
// There are some (planned) differences compared to the git config format:
// - improve data portability:
// - must be encoded in UTF-8 (for now) and must not contain the 0 byte
// - include and "path" type is not supported
// (path type may be implementable as a user-defined type)
// - internationalization
// - section and variable names can contain unicode letters, unicode digits
// (as defined in http://golang.org/ref/spec#Characters ) and hyphens
// (U+002D), starting with a unicode letter
// - disallow potentially ambiguous or misleading definitions:
// - `[sec.sub]` format is not allowed (deprecated in gitconfig)
// - `[sec ""]` is not allowed
// - use `[sec]` for section name "sec" and empty subsection name
// - (planned) within a single file, definitions must be contiguous for each:
// - section: '[secA]' -> '[secB]' -> '[secA]' is an error
// - subsection: '[sec "A"]' -> '[sec "B"]' -> '[sec "A"]' is an error
// - multivalued variable: 'multi=a' -> 'other=x' -> 'multi=b' is an error
//
// Data structure
//
// The functions in this package read values into a user-defined struct.
// Each section corresponds to a struct field in the config struct, and each
// variable in a section corresponds to a data field in the section struct.
// The mapping of each section or variable name to fields is done either based
// on the "gcfg" struct tag or by matching the name of the section or variable,
// ignoring case. In the latter case, hyphens '-' in section and variable names
// correspond to underscores '_' in field names.
// Fields must be exported; to use a section or variable name starting with a
// letter that is neither upper- or lower-case, prefix the field name with 'X'.
// (See https://code.google.com/p/go/issues/detail?id=5763#c4 .)
//
// For sections with subsections, the corresponding field in config must be a
// map, rather than a struct, with string keys and pointer-to-struct values.
// Values for subsection variables are stored in the map with the subsection
// name used as the map key.
// (Note that unlike section and variable names, subsection names are case
// sensitive.)
// When using a map, and there is a section with the same section name but
// without a subsection name, its values are stored with the empty string used
// as the key.
//
// The functions in this package panic if config is not a pointer to a struct,
// or when a field is not of a suitable type (either a struct or a map with
// string keys and pointer-to-struct values).
//
// Parsing of values
//
// The section structs in the config struct may contain single-valued or
// multi-valued variables. Variables of unnamed slice type (that is, a type
// starting with `[]`) are treated as multi-value; all others (including named
// slice types) are treated as single-valued variables.
//
// Single-valued variables are handled based on the type as follows.
// Unnamed pointer types (that is, types starting with `*`) are dereferenced,
// and if necessary, a new instance is allocated.
//
// For types implementing the encoding.TextUnmarshaler interface, the
// UnmarshalText method is used to set the value. Implementing this method is
// the recommended way for parsing user-defined types.
//
// For fields of string kind, the value string is assigned to the field, after
// unquoting and unescaping as needed.
// For fields of bool kind, the field is set to true if the value is "true",
// "yes", "on" or "1", and set to false if the value is "false", "no", "off" or
// "0", ignoring case. In addition, single-valued bool fields can be specified
// with a "blank" value (variable name without equals sign and value); in such
// case the value is set to true.
//
// Predefined integer types [u]int(|8|16|32|64) and big.Int are parsed as
// decimal or hexadecimal (if having '0x' prefix). (This is to prevent
// unintuitively handling zero-padded numbers as octal.) Other types having
// [u]int* as the underlying type, such as os.FileMode and uintptr allow
// decimal, hexadecimal, or octal values.
// Parsing mode for integer types can be overridden using the struct tag option
// ",int=mode" where mode is a combination of the 'd', 'h', and 'o' characters
// (each standing for decimal, hexadecimal, and octal, respectively.)
//
// All other types are parsed using fmt.Sscanf with the "%v" verb.
//
// For multi-valued variables, each individual value is parsed as above and
// appended to the slice. If the first value is specified as a "blank" value
// (variable name without equals sign and value), a new slice is allocated;
// that is any values previously set in the slice will be ignored.
//
// The types subpackage for provides helpers for parsing "enum-like" and integer
// types.
//
// TODO
//
// The following is a list of changes under consideration:
// - documentation
// - self-contained syntax documentation
// - more practical examples
// - move TODOs to issue tracker (eventually)
// - syntax
// - reconsider valid escape sequences
// (gitconfig doesn't support \r in value, \t in subsection name, etc.)
// - reading / parsing gcfg files
// - define internal representation structure
// - support multiple inputs (readers, strings, files)
// - support declaring encoding (?)
// - support varying fields sets for subsections (?)
// - writing gcfg files
// - error handling
// - make error context accessible programmatically?
// - limit input size?
//
package gcfg // import "gopkg.in/gcfg.v1"

7
vendor/gopkg.in/gcfg.v1/go1_0.go generated vendored
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@ -1,7 +0,0 @@
// +build !go1.2
package gcfg
type textUnmarshaler interface {
UnmarshalText(text []byte) error
}

9
vendor/gopkg.in/gcfg.v1/go1_2.go generated vendored
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@ -1,9 +0,0 @@
// +build go1.2
package gcfg
import (
"encoding"
)
type textUnmarshaler encoding.TextUnmarshaler

188
vendor/gopkg.in/gcfg.v1/read.go generated vendored
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@ -1,188 +0,0 @@
package gcfg
import (
"fmt"
"io"
"io/ioutil"
"os"
"strings"
)
import (
"gopkg.in/gcfg.v1/scanner"
"gopkg.in/gcfg.v1/token"
)
var unescape = map[rune]rune{'\\': '\\', '"': '"', 'n': '\n', 't': '\t'}
// no error: invalid literals should be caught by scanner
func unquote(s string) string {
u, q, esc := make([]rune, 0, len(s)), false, false
for _, c := range s {
if esc {
uc, ok := unescape[c]
switch {
case ok:
u = append(u, uc)
fallthrough
case !q && c == '\n':
esc = false
continue
}
panic("invalid escape sequence")
}
switch c {
case '"':
q = !q
case '\\':
esc = true
default:
u = append(u, c)
}
}
if q {
panic("missing end quote")
}
if esc {
panic("invalid escape sequence")
}
return string(u)
}
func readInto(config interface{}, fset *token.FileSet, file *token.File, src []byte) error {
var s scanner.Scanner
var errs scanner.ErrorList
s.Init(file, src, func(p token.Position, m string) { errs.Add(p, m) }, 0)
sect, sectsub := "", ""
pos, tok, lit := s.Scan()
errfn := func(msg string) error {
return fmt.Errorf("%s: %s", fset.Position(pos), msg)
}
for {
if errs.Len() > 0 {
return errs.Err()
}
switch tok {
case token.EOF:
return nil
case token.EOL, token.COMMENT:
pos, tok, lit = s.Scan()
case token.LBRACK:
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
if tok != token.IDENT {
return errfn("expected section name")
}
sect, sectsub = lit, ""
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
if tok == token.STRING {
sectsub = unquote(lit)
if sectsub == "" {
return errfn("empty subsection name")
}
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
}
if tok != token.RBRACK {
if sectsub == "" {
return errfn("expected subsection name or right bracket")
}
return errfn("expected right bracket")
}
pos, tok, lit = s.Scan()
if tok != token.EOL && tok != token.EOF && tok != token.COMMENT {
return errfn("expected EOL, EOF, or comment")
}
// If a section/subsection header was found, ensure a
// container object is created, even if there are no
// variables further down.
err := set(config, sect, sectsub, "", true, "")
if err != nil {
return err
}
case token.IDENT:
if sect == "" {
return errfn("expected section header")
}
n := lit
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
blank, v := tok == token.EOF || tok == token.EOL || tok == token.COMMENT, ""
if !blank {
if tok != token.ASSIGN {
return errfn("expected '='")
}
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
if tok != token.STRING {
return errfn("expected value")
}
v = unquote(lit)
pos, tok, lit = s.Scan()
if errs.Len() > 0 {
return errs.Err()
}
if tok != token.EOL && tok != token.EOF && tok != token.COMMENT {
return errfn("expected EOL, EOF, or comment")
}
}
err := set(config, sect, sectsub, n, blank, v)
if err != nil {
return err
}
default:
if sect == "" {
return errfn("expected section header")
}
return errfn("expected section header or variable declaration")
}
}
panic("never reached")
}
// ReadInto reads gcfg formatted data from reader and sets the values into the
// corresponding fields in config.
func ReadInto(config interface{}, reader io.Reader) error {
src, err := ioutil.ReadAll(reader)
if err != nil {
return err
}
fset := token.NewFileSet()
file := fset.AddFile("", fset.Base(), len(src))
return readInto(config, fset, file, src)
}
// ReadStringInto reads gcfg formatted data from str and sets the values into
// the corresponding fields in config.
func ReadStringInto(config interface{}, str string) error {
r := strings.NewReader(str)
return ReadInto(config, r)
}
// ReadFileInto reads gcfg formatted data from the file filename and sets the
// values into the corresponding fields in config.
func ReadFileInto(config interface{}, filename string) error {
f, err := os.Open(filename)
if err != nil {
return err
}
defer f.Close()
src, err := ioutil.ReadAll(f)
if err != nil {
return err
}
fset := token.NewFileSet()
file := fset.AddFile(filename, fset.Base(), len(src))
return readInto(config, fset, file, src)
}

121
vendor/gopkg.in/gcfg.v1/scanner/errors.go generated vendored
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@ -1,121 +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 scanner
import (
"fmt"
"io"
"sort"
)
import (
"gopkg.in/gcfg.v1/token"
)
// In an ErrorList, an error is represented by an *Error.
// The position Pos, if valid, points to the beginning of
// the offending token, and the error condition is described
// by Msg.
//
type Error struct {
Pos token.Position
Msg string
}
// Error implements the error interface.
func (e Error) Error() string {
if e.Pos.Filename != "" || e.Pos.IsValid() {
// don't print "<unknown position>"
// TODO(gri) reconsider the semantics of Position.IsValid
return e.Pos.String() + ": " + e.Msg
}
return e.Msg
}
// ErrorList is a list of *Errors.
// The zero value for an ErrorList is an empty ErrorList ready to use.
//
type ErrorList []*Error
// Add adds an Error with given position and error message to an ErrorList.
func (p *ErrorList) Add(pos token.Position, msg string) {
*p = append(*p, &Error{pos, msg})
}
// Reset resets an ErrorList to no errors.
func (p *ErrorList) Reset() { *p = (*p)[0:0] }
// ErrorList implements the sort Interface.
func (p ErrorList) Len() int { return len(p) }
func (p ErrorList) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
func (p ErrorList) Less(i, j int) bool {
e := &p[i].Pos
f := &p[j].Pos
if e.Filename < f.Filename {
return true
}
if e.Filename == f.Filename {
return e.Offset < f.Offset
}
return false
}
// Sort sorts an ErrorList. *Error entries are sorted by position,
// other errors are sorted by error message, and before any *Error
// entry.
//
func (p ErrorList) Sort() {
sort.Sort(p)
}
// RemoveMultiples sorts an ErrorList and removes all but the first error per line.
func (p *ErrorList) RemoveMultiples() {
sort.Sort(p)
var last token.Position // initial last.Line is != any legal error line
i := 0
for _, e := range *p {
if e.Pos.Filename != last.Filename || e.Pos.Line != last.Line {
last = e.Pos
(*p)[i] = e
i++
}
}
(*p) = (*p)[0:i]
}
// An ErrorList implements the error interface.
func (p ErrorList) Error() string {
switch len(p) {
case 0:
return "no errors"
case 1:
return p[0].Error()
}
return fmt.Sprintf("%s (and %d more errors)", p[0], len(p)-1)
}
// Err returns an error equivalent to this error list.
// If the list is empty, Err returns nil.
func (p ErrorList) Err() error {
if len(p) == 0 {
return nil
}
return p
}
// PrintError is a utility function that prints a list of errors to w,
// one error per line, if the err parameter is an ErrorList. Otherwise
// it prints the err string.
//
func PrintError(w io.Writer, err error) {
if list, ok := err.(ErrorList); ok {
for _, e := range list {
fmt.Fprintf(w, "%s\n", e)
}
} else if err != nil {
fmt.Fprintf(w, "%s\n", err)
}
}

342
vendor/gopkg.in/gcfg.v1/scanner/scanner.go generated vendored
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@ -1,342 +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 scanner implements a scanner for gcfg configuration text.
// It takes a []byte as source which can then be tokenized
// through repeated calls to the Scan method.
//
// Note that the API for the scanner package may change to accommodate new
// features or implementation changes in gcfg.
//
package scanner
import (
"fmt"
"path/filepath"
"unicode"
"unicode/utf8"
)
import (
"gopkg.in/gcfg.v1/token"
)
// An ErrorHandler may be provided to Scanner.Init. If a syntax error is
// encountered and a handler was installed, the handler is called with a
// position and an error message. The position points to the beginning of
// the offending token.
//
type ErrorHandler func(pos token.Position, msg string)
// A Scanner holds the scanner's internal state while processing
// a given text. It can be allocated as part of another data
// structure but must be initialized via Init before use.
//
type Scanner struct {
// immutable state
file *token.File // source file handle
dir string // directory portion of file.Name()
src []byte // source
err ErrorHandler // error reporting; or nil
mode Mode // scanning mode
// scanning state
ch rune // current character
offset int // character offset
rdOffset int // reading offset (position after current character)
lineOffset int // current line offset
nextVal bool // next token is expected to be a value
// public state - ok to modify
ErrorCount int // number of errors encountered
}
// Read the next Unicode char into s.ch.
// s.ch < 0 means end-of-file.
//
func (s *Scanner) next() {
if s.rdOffset < len(s.src) {
s.offset = s.rdOffset
if s.ch == '\n' {
s.lineOffset = s.offset
s.file.AddLine(s.offset)
}
r, w := rune(s.src[s.rdOffset]), 1
switch {
case r == 0:
s.error(s.offset, "illegal character NUL")
case r >= 0x80:
// not ASCII
r, w = utf8.DecodeRune(s.src[s.rdOffset:])
if r == utf8.RuneError && w == 1 {
s.error(s.offset, "illegal UTF-8 encoding")
}
}
s.rdOffset += w
s.ch = r
} else {
s.offset = len(s.src)
if s.ch == '\n' {
s.lineOffset = s.offset
s.file.AddLine(s.offset)
}
s.ch = -1 // eof
}
}
// A mode value is a set of flags (or 0).
// They control scanner behavior.
//
type Mode uint
const (
ScanComments Mode = 1 << iota // return comments as COMMENT tokens
)
// Init prepares the scanner s to tokenize the text src by setting the
// scanner at the beginning of src. The scanner uses the file set file
// for position information and it adds line information for each line.
// It is ok to re-use the same file when re-scanning the same file as
// line information which is already present is ignored. Init causes a
// panic if the file size does not match the src size.
//
// Calls to Scan will invoke the error handler err if they encounter a
// syntax error and err is not nil. Also, for each error encountered,
// the Scanner field ErrorCount is incremented by one. The mode parameter
// determines how comments are handled.
//
// Note that Init may call err if there is an error in the first character
// of the file.
//
func (s *Scanner) Init(file *token.File, src []byte, err ErrorHandler, mode Mode) {
// Explicitly initialize all fields since a scanner may be reused.
if file.Size() != len(src) {
panic(fmt.Sprintf("file size (%d) does not match src len (%d)", file.Size(), len(src)))
}
s.file = file
s.dir, _ = filepath.Split(file.Name())
s.src = src
s.err = err
s.mode = mode
s.ch = ' '
s.offset = 0
s.rdOffset = 0
s.lineOffset = 0
s.ErrorCount = 0
s.nextVal = false
s.next()
}
func (s *Scanner) error(offs int, msg string) {
if s.err != nil {
s.err(s.file.Position(s.file.Pos(offs)), msg)
}
s.ErrorCount++
}
func (s *Scanner) scanComment() string {
// initial [;#] already consumed
offs := s.offset - 1 // position of initial [;#]
for s.ch != '\n' && s.ch >= 0 {
s.next()
}
return string(s.src[offs:s.offset])
}
func isLetter(ch rune) bool {
return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch >= 0x80 && unicode.IsLetter(ch)
}
func isDigit(ch rune) bool {
return '0' <= ch && ch <= '9' || ch >= 0x80 && unicode.IsDigit(ch)
}
func (s *Scanner) scanIdentifier() string {
offs := s.offset
for isLetter(s.ch) || isDigit(s.ch) || s.ch == '-' {
s.next()
}
return string(s.src[offs:s.offset])
}
func (s *Scanner) scanEscape(val bool) {
offs := s.offset
ch := s.ch
s.next() // always make progress
switch ch {
case '\\', '"':
// ok
case 'n', 't':
if val {
break // ok
}
fallthrough
default:
s.error(offs, "unknown escape sequence")
}
}
func (s *Scanner) scanString() string {
// '"' opening already consumed
offs := s.offset - 1
for s.ch != '"' {
ch := s.ch
s.next()
if ch == '\n' || ch < 0 {
s.error(offs, "string not terminated")
break
}
if ch == '\\' {
s.scanEscape(false)
}
}
s.next()
return string(s.src[offs:s.offset])
}
func stripCR(b []byte) []byte {
c := make([]byte, len(b))
i := 0
for _, ch := range b {
if ch != '\r' {
c[i] = ch
i++
}
}
return c[:i]
}
func (s *Scanner) scanValString() string {
offs := s.offset
hasCR := false
end := offs
inQuote := false
loop:
for inQuote || s.ch >= 0 && s.ch != '\n' && s.ch != ';' && s.ch != '#' {
ch := s.ch
s.next()
switch {
case inQuote && ch == '\\':
s.scanEscape(true)
case !inQuote && ch == '\\':
if s.ch == '\r' {
hasCR = true
s.next()
}
if s.ch != '\n' {
s.error(offs, "unquoted '\\' must be followed by new line")
break loop
}
s.next()
case ch == '"':
inQuote = !inQuote
case ch == '\r':
hasCR = true
case ch < 0 || inQuote && ch == '\n':
s.error(offs, "string not terminated")
break loop
}
if inQuote || !isWhiteSpace(ch) {
end = s.offset
}
}
lit := s.src[offs:end]
if hasCR {
lit = stripCR(lit)
}
return string(lit)
}
func isWhiteSpace(ch rune) bool {
return ch == ' ' || ch == '\t' || ch == '\r'
}
func (s *Scanner) skipWhitespace() {
for isWhiteSpace(s.ch) {
s.next()
}
}
// Scan scans the next token and returns the token position, the token,
// and its literal string if applicable. The source end is indicated by
// token.EOF.
//
// If the returned token is a literal (token.IDENT, token.STRING) or
// token.COMMENT, the literal string has the corresponding value.
//
// If the returned token is token.ILLEGAL, the literal string is the
// offending character.
//
// In all other cases, Scan returns an empty literal string.
//
// For more tolerant parsing, Scan will return a valid token if
// possible even if a syntax error was encountered. Thus, even
// if the resulting token sequence contains no illegal tokens,
// a client may not assume that no error occurred. Instead it
// must check the scanner's ErrorCount or the number of calls
// of the error handler, if there was one installed.
//
// Scan adds line information to the file added to the file
// set with Init. Token positions are relative to that file
// and thus relative to the file set.
//
func (s *Scanner) Scan() (pos token.Pos, tok token.Token, lit string) {
scanAgain:
s.skipWhitespace()
// current token start
pos = s.file.Pos(s.offset)
// determine token value
switch ch := s.ch; {
case s.nextVal:
lit = s.scanValString()
tok = token.STRING
s.nextVal = false
case isLetter(ch):
lit = s.scanIdentifier()
tok = token.IDENT
default:
s.next() // always make progress
switch ch {
case -1:
tok = token.EOF
case '\n':
tok = token.EOL
case '"':
tok = token.STRING
lit = s.scanString()
case '[':
tok = token.LBRACK
case ']':
tok = token.RBRACK
case ';', '#':
// comment
lit = s.scanComment()
if s.mode&ScanComments == 0 {
// skip comment
goto scanAgain
}
tok = token.COMMENT
case '=':
tok = token.ASSIGN
s.nextVal = true
default:
s.error(s.file.Offset(pos), fmt.Sprintf("illegal character %#U", ch))
tok = token.ILLEGAL
lit = string(ch)
}
}
return
}

293
vendor/gopkg.in/gcfg.v1/set.go generated vendored
View File

@ -1,293 +0,0 @@
package gcfg
import (
"fmt"
"math/big"
"reflect"
"strings"
"unicode"
"unicode/utf8"
"gopkg.in/gcfg.v1/types"
)
type tag struct {
ident string
intMode string
}
func newTag(ts string) tag {
t := tag{}
s := strings.Split(ts, ",")
t.ident = s[0]
for _, tse := range s[1:] {
if strings.HasPrefix(tse, "int=") {
t.intMode = tse[len("int="):]
}
}
return t
}
func fieldFold(v reflect.Value, name string) (reflect.Value, tag) {
var n string
r0, _ := utf8.DecodeRuneInString(name)
if unicode.IsLetter(r0) && !unicode.IsLower(r0) && !unicode.IsUpper(r0) {
n = "X"
}
n += strings.Replace(name, "-", "_", -1)
f, ok := v.Type().FieldByNameFunc(func(fieldName string) bool {
if !v.FieldByName(fieldName).CanSet() {
return false
}
f, _ := v.Type().FieldByName(fieldName)
t := newTag(f.Tag.Get("gcfg"))
if t.ident != "" {
return strings.EqualFold(t.ident, name)
}
return strings.EqualFold(n, fieldName)
})
if !ok {
return reflect.Value{}, tag{}
}
return v.FieldByName(f.Name), newTag(f.Tag.Get("gcfg"))
}
type setter func(destp interface{}, blank bool, val string, t tag) error
var errUnsupportedType = fmt.Errorf("unsupported type")
var errBlankUnsupported = fmt.Errorf("blank value not supported for type")
var setters = []setter{
typeSetter, textUnmarshalerSetter, kindSetter, scanSetter,
}
func textUnmarshalerSetter(d interface{}, blank bool, val string, t tag) error {
dtu, ok := d.(textUnmarshaler)
if !ok {
return errUnsupportedType
}
if blank {
return errBlankUnsupported
}
return dtu.UnmarshalText([]byte(val))
}
func boolSetter(d interface{}, blank bool, val string, t tag) error {
if blank {
reflect.ValueOf(d).Elem().Set(reflect.ValueOf(true))
return nil
}
b, err := types.ParseBool(val)
if err == nil {
reflect.ValueOf(d).Elem().Set(reflect.ValueOf(b))
}
return err
}
func intMode(mode string) types.IntMode {
var m types.IntMode
if strings.ContainsAny(mode, "dD") {
m |= types.Dec
}
if strings.ContainsAny(mode, "hH") {
m |= types.Hex
}
if strings.ContainsAny(mode, "oO") {
m |= types.Oct
}
return m
}
var typeModes = map[reflect.Type]types.IntMode{
reflect.TypeOf(int(0)): types.Dec | types.Hex,
reflect.TypeOf(int8(0)): types.Dec | types.Hex,
reflect.TypeOf(int16(0)): types.Dec | types.Hex,
reflect.TypeOf(int32(0)): types.Dec | types.Hex,
reflect.TypeOf(int64(0)): types.Dec | types.Hex,
reflect.TypeOf(uint(0)): types.Dec | types.Hex,
reflect.TypeOf(uint8(0)): types.Dec | types.Hex,
reflect.TypeOf(uint16(0)): types.Dec | types.Hex,
reflect.TypeOf(uint32(0)): types.Dec | types.Hex,
reflect.TypeOf(uint64(0)): types.Dec | types.Hex,
// use default mode (allow dec/hex/oct) for uintptr type
reflect.TypeOf(big.Int{}): types.Dec | types.Hex,
}
func intModeDefault(t reflect.Type) types.IntMode {
m, ok := typeModes[t]
if !ok {
m = types.Dec | types.Hex | types.Oct
}
return m
}
func intSetter(d interface{}, blank bool, val string, t tag) error {
if blank {
return errBlankUnsupported
}
mode := intMode(t.intMode)
if mode == 0 {
mode = intModeDefault(reflect.TypeOf(d).Elem())
}
return types.ParseInt(d, val, mode)
}
func stringSetter(d interface{}, blank bool, val string, t tag) error {
if blank {
return errBlankUnsupported
}
dsp, ok := d.(*string)
if !ok {
return errUnsupportedType
}
*dsp = val
return nil
}
var kindSetters = map[reflect.Kind]setter{
reflect.String: stringSetter,
reflect.Bool: boolSetter,
reflect.Int: intSetter,
reflect.Int8: intSetter,
reflect.Int16: intSetter,
reflect.Int32: intSetter,
reflect.Int64: intSetter,
reflect.Uint: intSetter,
reflect.Uint8: intSetter,
reflect.Uint16: intSetter,
reflect.Uint32: intSetter,
reflect.Uint64: intSetter,
reflect.Uintptr: intSetter,
}
var typeSetters = map[reflect.Type]setter{
reflect.TypeOf(big.Int{}): intSetter,
}
func typeSetter(d interface{}, blank bool, val string, tt tag) error {
t := reflect.ValueOf(d).Type().Elem()
setter, ok := typeSetters[t]
if !ok {
return errUnsupportedType
}
return setter(d, blank, val, tt)
}
func kindSetter(d interface{}, blank bool, val string, tt tag) error {
k := reflect.ValueOf(d).Type().Elem().Kind()
setter, ok := kindSetters[k]
if !ok {
return errUnsupportedType
}
return setter(d, blank, val, tt)
}
func scanSetter(d interface{}, blank bool, val string, tt tag) error {
if blank {
return errBlankUnsupported
}
return types.ScanFully(d, val, 'v')
}
func set(cfg interface{}, sect, sub, name string, blank bool, value string) error {
vPCfg := reflect.ValueOf(cfg)
if vPCfg.Kind() != reflect.Ptr || vPCfg.Elem().Kind() != reflect.Struct {
panic(fmt.Errorf("config must be a pointer to a struct"))
}
vCfg := vPCfg.Elem()
vSect, _ := fieldFold(vCfg, sect)
if !vSect.IsValid() {
return fmt.Errorf("invalid section: section %q", sect)
}
if vSect.Kind() == reflect.Map {
vst := vSect.Type()
if vst.Key().Kind() != reflect.String ||
vst.Elem().Kind() != reflect.Ptr ||
vst.Elem().Elem().Kind() != reflect.Struct {
panic(fmt.Errorf("map field for section must have string keys and "+
" pointer-to-struct values: section %q", sect))
}
if vSect.IsNil() {
vSect.Set(reflect.MakeMap(vst))
}
k := reflect.ValueOf(sub)
pv := vSect.MapIndex(k)
if !pv.IsValid() {
vType := vSect.Type().Elem().Elem()
pv = reflect.New(vType)
vSect.SetMapIndex(k, pv)
}
vSect = pv.Elem()
} else if vSect.Kind() != reflect.Struct {
panic(fmt.Errorf("field for section must be a map or a struct: "+
"section %q", sect))
} else if sub != "" {
return fmt.Errorf("invalid subsection: "+
"section %q subsection %q", sect, sub)
}
// Empty name is a special value, meaning that only the
// section/subsection object is to be created, with no values set.
if name == "" {
return nil
}
vVar, t := fieldFold(vSect, name)
if !vVar.IsValid() {
return fmt.Errorf("invalid variable: "+
"section %q subsection %q variable %q", sect, sub, name)
}
// vVal is either single-valued var, or newly allocated value within multi-valued var
var vVal reflect.Value
// multi-value if unnamed slice type
isMulti := vVar.Type().Name() == "" && vVar.Kind() == reflect.Slice ||
vVar.Type().Name() == "" && vVar.Kind() == reflect.Ptr && vVar.Type().Elem().Name() == "" && vVar.Type().Elem().Kind() == reflect.Slice
if isMulti && vVar.Kind() == reflect.Ptr {
if vVar.IsNil() {
vVar.Set(reflect.New(vVar.Type().Elem()))
}
vVar = vVar.Elem()
}
if isMulti && blank {
vVar.Set(reflect.Zero(vVar.Type()))
return nil
}
if isMulti {
vVal = reflect.New(vVar.Type().Elem()).Elem()
} else {
vVal = vVar
}
isDeref := vVal.Type().Name() == "" && vVal.Type().Kind() == reflect.Ptr
isNew := isDeref && vVal.IsNil()
// vAddr is address of value to set (dereferenced & allocated as needed)
var vAddr reflect.Value
switch {
case isNew:
vAddr = reflect.New(vVal.Type().Elem())
case isDeref && !isNew:
vAddr = vVal
default:
vAddr = vVal.Addr()
}
vAddrI := vAddr.Interface()
err, ok := error(nil), false
for _, s := range setters {
err = s(vAddrI, blank, value, t)
if err == nil {
ok = true
break
}
if err != errUnsupportedType {
return err
}
}
if !ok {
// in case all setters returned errUnsupportedType
return err
}
if isNew { // set reference if it was dereferenced and newly allocated
vVal.Set(vAddr)
}
if isMulti { // append if multi-valued
vVar.Set(reflect.Append(vVar, vVal))
}
return nil
}

435
vendor/gopkg.in/gcfg.v1/token/position.go generated vendored
View File

@ -1,435 +0,0 @@
// Copyright 2010 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.
// TODO(gri) consider making this a separate package outside the go directory.
package token
import (
"fmt"
"sort"
"sync"
)
// -----------------------------------------------------------------------------
// Positions
// Position describes an arbitrary source position
// including the file, line, and column location.
// A Position is valid if the line number is > 0.
//
type Position struct {
Filename string // filename, if any
Offset int // offset, starting at 0
Line int // line number, starting at 1
Column int // column number, starting at 1 (character count)
}
// IsValid returns true if the position is valid.
func (pos *Position) IsValid() bool { return pos.Line > 0 }
// String returns a string in one of several forms:
//
// file:line:column valid position with file name
// line:column valid position without file name
// file invalid position with file name
// - invalid position without file name
//
func (pos Position) String() string {
s := pos.Filename
if pos.IsValid() {
if s != "" {
s += ":"
}
s += fmt.Sprintf("%d:%d", pos.Line, pos.Column)
}
if s == "" {
s = "-"
}
return s
}
// Pos is a compact encoding of a source position within a file set.
// It can be converted into a Position for a more convenient, but much
// larger, representation.
//
// The Pos value for a given file is a number in the range [base, base+size],
// where base and size are specified when adding the file to the file set via
// AddFile.
//
// To create the Pos value for a specific source offset, first add
// the respective file to the current file set (via FileSet.AddFile)
// and then call File.Pos(offset) for that file. Given a Pos value p
// for a specific file set fset, the corresponding Position value is
// obtained by calling fset.Position(p).
//
// Pos values can be compared directly with the usual comparison operators:
// If two Pos values p and q are in the same file, comparing p and q is
// equivalent to comparing the respective source file offsets. If p and q
// are in different files, p < q is true if the file implied by p was added
// to the respective file set before the file implied by q.
//
type Pos int
// The zero value for Pos is NoPos; there is no file and line information
// associated with it, and NoPos().IsValid() is false. NoPos is always
// smaller than any other Pos value. The corresponding Position value
// for NoPos is the zero value for Position.
//
const NoPos Pos = 0
// IsValid returns true if the position is valid.
func (p Pos) IsValid() bool {
return p != NoPos
}
// -----------------------------------------------------------------------------
// File
// A File is a handle for a file belonging to a FileSet.
// A File has a name, size, and line offset table.
//
type File struct {
set *FileSet
name string // file name as provided to AddFile
base int // Pos value range for this file is [base...base+size]
size int // file size as provided to AddFile
// lines and infos are protected by set.mutex
lines []int
infos []lineInfo
}
// Name returns the file name of file f as registered with AddFile.
func (f *File) Name() string {
return f.name
}
// Base returns the base offset of file f as registered with AddFile.
func (f *File) Base() int {
return f.base
}
// Size returns the size of file f as registered with AddFile.
func (f *File) Size() int {
return f.size
}
// LineCount returns the number of lines in file f.
func (f *File) LineCount() int {
f.set.mutex.RLock()
n := len(f.lines)
f.set.mutex.RUnlock()
return n
}
// AddLine adds the line offset for a new line.
// The line offset must be larger than the offset for the previous line
// and smaller than the file size; otherwise the line offset is ignored.
//
func (f *File) AddLine(offset int) {
f.set.mutex.Lock()
if i := len(f.lines); (i == 0 || f.lines[i-1] < offset) && offset < f.size {
f.lines = append(f.lines, offset)
}
f.set.mutex.Unlock()
}
// SetLines sets the line offsets for a file and returns true if successful.
// The line offsets are the offsets of the first character of each line;
// for instance for the content "ab\nc\n" the line offsets are {0, 3}.
// An empty file has an empty line offset table.
// Each line offset must be larger than the offset for the previous line
// and smaller than the file size; otherwise SetLines fails and returns
// false.
//
func (f *File) SetLines(lines []int) bool {
// verify validity of lines table
size := f.size
for i, offset := range lines {
if i > 0 && offset <= lines[i-1] || size <= offset {
return false
}
}
// set lines table
f.set.mutex.Lock()
f.lines = lines
f.set.mutex.Unlock()
return true
}
// SetLinesForContent sets the line offsets for the given file content.
func (f *File) SetLinesForContent(content []byte) {
var lines []int
line := 0
for offset, b := range content {
if line >= 0 {
lines = append(lines, line)
}
line = -1
if b == '\n' {
line = offset + 1
}
}
// set lines table
f.set.mutex.Lock()
f.lines = lines
f.set.mutex.Unlock()
}
// A lineInfo object describes alternative file and line number
// information (such as provided via a //line comment in a .go
// file) for a given file offset.
type lineInfo struct {
// fields are exported to make them accessible to gob
Offset int
Filename string
Line int
}
// AddLineInfo adds alternative file and line number information for
// a given file offset. The offset must be larger than the offset for
// the previously added alternative line info and smaller than the
// file size; otherwise the information is ignored.
//
// AddLineInfo is typically used to register alternative position
// information for //line filename:line comments in source files.
//
func (f *File) AddLineInfo(offset int, filename string, line int) {
f.set.mutex.Lock()
if i := len(f.infos); i == 0 || f.infos[i-1].Offset < offset && offset < f.size {
f.infos = append(f.infos, lineInfo{offset, filename, line})
}
f.set.mutex.Unlock()
}
// Pos returns the Pos value for the given file offset;
// the offset must be <= f.Size().
// f.Pos(f.Offset(p)) == p.
//
func (f *File) Pos(offset int) Pos {
if offset > f.size {
panic("illegal file offset")
}
return Pos(f.base + offset)
}
// Offset returns the offset for the given file position p;
// p must be a valid Pos value in that file.
// f.Offset(f.Pos(offset)) == offset.
//
func (f *File) Offset(p Pos) int {
if int(p) < f.base || int(p) > f.base+f.size {
panic("illegal Pos value")
}
return int(p) - f.base
}
// Line returns the line number for the given file position p;
// p must be a Pos value in that file or NoPos.
//
func (f *File) Line(p Pos) int {
// TODO(gri) this can be implemented much more efficiently
return f.Position(p).Line
}
func searchLineInfos(a []lineInfo, x int) int {
return sort.Search(len(a), func(i int) bool { return a[i].Offset > x }) - 1
}
// info returns the file name, line, and column number for a file offset.
func (f *File) info(offset int) (filename string, line, column int) {
filename = f.name
if i := searchInts(f.lines, offset); i >= 0 {
line, column = i+1, offset-f.lines[i]+1
}
if len(f.infos) > 0 {
// almost no files have extra line infos
if i := searchLineInfos(f.infos, offset); i >= 0 {
alt := &f.infos[i]
filename = alt.Filename
if i := searchInts(f.lines, alt.Offset); i >= 0 {
line += alt.Line - i - 1
}
}
}
return
}
func (f *File) position(p Pos) (pos Position) {
offset := int(p) - f.base
pos.Offset = offset
pos.Filename, pos.Line, pos.Column = f.info(offset)
return
}
// Position returns the Position value for the given file position p;
// p must be a Pos value in that file or NoPos.
//
func (f *File) Position(p Pos) (pos Position) {
if p != NoPos {
if int(p) < f.base || int(p) > f.base+f.size {
panic("illegal Pos value")
}
pos = f.position(p)
}
return
}
// -----------------------------------------------------------------------------
// FileSet
// A FileSet represents a set of source files.
// Methods of file sets are synchronized; multiple goroutines
// may invoke them concurrently.
//
type FileSet struct {
mutex sync.RWMutex // protects the file set
base int // base offset for the next file
files []*File // list of files in the order added to the set
last *File // cache of last file looked up
}
// NewFileSet creates a new file set.
func NewFileSet() *FileSet {
s := new(FileSet)
s.base = 1 // 0 == NoPos
return s
}
// Base returns the minimum base offset that must be provided to
// AddFile when adding the next file.
//
func (s *FileSet) Base() int {
s.mutex.RLock()
b := s.base
s.mutex.RUnlock()
return b
}
// AddFile adds a new file with a given filename, base offset, and file size
// to the file set s and returns the file. Multiple files may have the same
// name. The base offset must not be smaller than the FileSet's Base(), and
// size must not be negative.
//
// Adding the file will set the file set's Base() value to base + size + 1
// as the minimum base value for the next file. The following relationship
// exists between a Pos value p for a given file offset offs:
//
// int(p) = base + offs
//
// with offs in the range [0, size] and thus p in the range [base, base+size].
// For convenience, File.Pos may be used to create file-specific position
// values from a file offset.
//
func (s *FileSet) AddFile(filename string, base, size int) *File {
s.mutex.Lock()
defer s.mutex.Unlock()
if base < s.base || size < 0 {
panic("illegal base or size")
}
// base >= s.base && size >= 0
f := &File{s, filename, base, size, []int{0}, nil}
base += size + 1 // +1 because EOF also has a position
if base < 0 {
panic("token.Pos offset overflow (> 2G of source code in file set)")
}
// add the file to the file set
s.base = base
s.files = append(s.files, f)
s.last = f
return f
}
// Iterate calls f for the files in the file set in the order they were added
// until f returns false.
//
func (s *FileSet) Iterate(f func(*File) bool) {
for i := 0; ; i++ {
var file *File
s.mutex.RLock()
if i < len(s.files) {
file = s.files[i]
}
s.mutex.RUnlock()
if file == nil || !f(file) {
break
}
}
}
func searchFiles(a []*File, x int) int {
return sort.Search(len(a), func(i int) bool { return a[i].base > x }) - 1
}
func (s *FileSet) file(p Pos) *File {
// common case: p is in last file
if f := s.last; f != nil && f.base <= int(p) && int(p) <= f.base+f.size {
return f
}
// p is not in last file - search all files
if i := searchFiles(s.files, int(p)); i >= 0 {
f := s.files[i]
// f.base <= int(p) by definition of searchFiles
if int(p) <= f.base+f.size {
s.last = f
return f
}
}
return nil
}
// File returns the file that contains the position p.
// If no such file is found (for instance for p == NoPos),
// the result is nil.
//
func (s *FileSet) File(p Pos) (f *File) {
if p != NoPos {
s.mutex.RLock()
f = s.file(p)
s.mutex.RUnlock()
}
return
}
// Position converts a Pos in the fileset into a general Position.
func (s *FileSet) Position(p Pos) (pos Position) {
if p != NoPos {
s.mutex.RLock()
if f := s.file(p); f != nil {
pos = f.position(p)
}
s.mutex.RUnlock()
}
return
}
// -----------------------------------------------------------------------------
// Helper functions
func searchInts(a []int, x int) int {
// This function body is a manually inlined version of:
//
// return sort.Search(len(a), func(i int) bool { return a[i] > x }) - 1
//
// With better compiler optimizations, this may not be needed in the
// future, but at the moment this change improves the go/printer
// benchmark performance by ~30%. This has a direct impact on the
// speed of gofmt and thus seems worthwhile (2011-04-29).
// TODO(gri): Remove this when compilers have caught up.
i, j := 0, len(a)
for i < j {
h := i + (j-i)/2 // avoid overflow when computing h
// i ≤ h < j
if a[h] <= x {
i = h + 1
} else {
j = h
}
}
return i - 1
}

56
vendor/gopkg.in/gcfg.v1/token/serialize.go generated vendored
View File

@ -1,56 +0,0 @@
// Copyright 2011 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 token
type serializedFile struct {
// fields correspond 1:1 to fields with same (lower-case) name in File
Name string
Base int
Size int
Lines []int
Infos []lineInfo
}
type serializedFileSet struct {
Base int
Files []serializedFile
}
// Read calls decode to deserialize a file set into s; s must not be nil.
func (s *FileSet) Read(decode func(interface{}) error) error {
var ss serializedFileSet
if err := decode(&ss); err != nil {
return err
}
s.mutex.Lock()
s.base = ss.Base
files := make([]*File, len(ss.Files))
for i := 0; i < len(ss.Files); i++ {
f := &ss.Files[i]
files[i] = &File{s, f.Name, f.Base, f.Size, f.Lines, f.Infos}
}
s.files = files
s.last = nil
s.mutex.Unlock()
return nil
}
// Write calls encode to serialize the file set s.
func (s *FileSet) Write(encode func(interface{}) error) error {
var ss serializedFileSet
s.mutex.Lock()
ss.Base = s.base
files := make([]serializedFile, len(s.files))
for i, f := range s.files {
files[i] = serializedFile{f.name, f.base, f.size, f.lines, f.infos}
}
ss.Files = files
s.mutex.Unlock()
return encode(ss)
}

83
vendor/gopkg.in/gcfg.v1/token/token.go generated vendored
View File

@ -1,83 +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 token defines constants representing the lexical tokens of the gcfg
// configuration syntax and basic operations on tokens (printing, predicates).
//
// Note that the API for the token package may change to accommodate new
// features or implementation changes in gcfg.
//
package token
import "strconv"
// Token is the set of lexical tokens of the gcfg configuration syntax.
type Token int
// The list of tokens.
const (
// Special tokens
ILLEGAL Token = iota
EOF
COMMENT
literal_beg
// Identifiers and basic type literals
// (these tokens stand for classes of literals)
IDENT // section-name, variable-name
STRING // "subsection-name", variable value
literal_end
operator_beg
// Operators and delimiters
ASSIGN // =
LBRACK // [
RBRACK // ]
EOL // \n
operator_end
)
var tokens = [...]string{
ILLEGAL: "ILLEGAL",
EOF: "EOF",
COMMENT: "COMMENT",
IDENT: "IDENT",
STRING: "STRING",
ASSIGN: "=",
LBRACK: "[",
RBRACK: "]",
EOL: "\n",
}
// String returns the string corresponding to the token tok.
// For operators and delimiters, the string is the actual token character
// sequence (e.g., for the token ASSIGN, the string is "="). For all other
// tokens the string corresponds to the token constant name (e.g. for the
// token IDENT, the string is "IDENT").
//
func (tok Token) String() string {
s := ""
if 0 <= tok && tok < Token(len(tokens)) {
s = tokens[tok]
}
if s == "" {
s = "token(" + strconv.Itoa(int(tok)) + ")"
}
return s
}
// Predicates
// IsLiteral returns true for tokens corresponding to identifiers
// and basic type literals; it returns false otherwise.
//
func (tok Token) IsLiteral() bool { return literal_beg < tok && tok < literal_end }
// IsOperator returns true for tokens corresponding to operators and
// delimiters; it returns false otherwise.
//
func (tok Token) IsOperator() bool { return operator_beg < tok && tok < operator_end }

23
vendor/gopkg.in/gcfg.v1/types/bool.go generated vendored
View File

@ -1,23 +0,0 @@
package types
// BoolValues defines the name and value mappings for ParseBool.
var BoolValues = map[string]interface{}{
"true": true, "yes": true, "on": true, "1": true,
"false": false, "no": false, "off": false, "0": false,
}
var boolParser = func() *EnumParser {
ep := &EnumParser{}
ep.AddVals(BoolValues)
return ep
}()
// ParseBool parses bool values according to the definitions in BoolValues.
// Parsing is case-insensitive.
func ParseBool(s string) (bool, error) {
v, err := boolParser.Parse(s)
if err != nil {
return false, err
}
return v.(bool), nil
}

4
vendor/gopkg.in/gcfg.v1/types/doc.go generated vendored
View File

@ -1,4 +0,0 @@
// Package types defines helpers for type conversions.
//
// The API for this package is not finalized yet.
package types

44
vendor/gopkg.in/gcfg.v1/types/enum.go generated vendored
View File

@ -1,44 +0,0 @@
package types
import (
"fmt"
"reflect"
"strings"
)
// EnumParser parses "enum" values; i.e. a predefined set of strings to
// predefined values.
type EnumParser struct {
Type string // type name; if not set, use type of first value added
CaseMatch bool // if true, matching of strings is case-sensitive
// PrefixMatch bool
vals map[string]interface{}
}
// AddVals adds strings and values to an EnumParser.
func (ep *EnumParser) AddVals(vals map[string]interface{}) {
if ep.vals == nil {
ep.vals = make(map[string]interface{})
}
for k, v := range vals {
if ep.Type == "" {
ep.Type = reflect.TypeOf(v).Name()
}
if !ep.CaseMatch {
k = strings.ToLower(k)
}
ep.vals[k] = v
}
}
// Parse parses the string and returns the value or an error.
func (ep EnumParser) Parse(s string) (interface{}, error) {
if !ep.CaseMatch {
s = strings.ToLower(s)
}
v, ok := ep.vals[s]
if !ok {
return false, fmt.Errorf("failed to parse %s %#q", ep.Type, s)
}
return v, nil
}

86
vendor/gopkg.in/gcfg.v1/types/int.go generated vendored
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@ -1,86 +0,0 @@
package types
import (
"fmt"
"strings"
)
// An IntMode is a mode for parsing integer values, representing a set of
// accepted bases.
type IntMode uint8
// IntMode values for ParseInt; can be combined using binary or.
const (
Dec IntMode = 1 << iota
Hex
Oct
)
// String returns a string representation of IntMode; e.g. `IntMode(Dec|Hex)`.
func (m IntMode) String() string {
var modes []string
if m&Dec != 0 {
modes = append(modes, "Dec")
}
if m&Hex != 0 {
modes = append(modes, "Hex")
}
if m&Oct != 0 {
modes = append(modes, "Oct")
}
return "IntMode(" + strings.Join(modes, "|") + ")"
}
var errIntAmbig = fmt.Errorf("ambiguous integer value; must include '0' prefix")
func prefix0(val string) bool {
return strings.HasPrefix(val, "0") || strings.HasPrefix(val, "-0")
}
func prefix0x(val string) bool {
return strings.HasPrefix(val, "0x") || strings.HasPrefix(val, "-0x")
}
// ParseInt parses val using mode into intptr, which must be a pointer to an
// integer kind type. Non-decimal value require prefix `0` or `0x` in the cases
// when mode permits ambiguity of base; otherwise the prefix can be omitted.
func ParseInt(intptr interface{}, val string, mode IntMode) error {
val = strings.TrimSpace(val)
verb := byte(0)
switch mode {
case Dec:
verb = 'd'
case Dec + Hex:
if prefix0x(val) {
verb = 'v'
} else {
verb = 'd'
}
case Dec + Oct:
if prefix0(val) && !prefix0x(val) {
verb = 'v'
} else {
verb = 'd'
}
case Dec + Hex + Oct:
verb = 'v'
case Hex:
if prefix0x(val) {
verb = 'v'
} else {
verb = 'x'
}
case Oct:
verb = 'o'
case Hex + Oct:
if prefix0(val) {
verb = 'v'
} else {
return errIntAmbig
}
}
if verb == 0 {
panic("unsupported mode")
}
return ScanFully(intptr, val, verb)
}

23
vendor/gopkg.in/gcfg.v1/types/scan.go generated vendored
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@ -1,23 +0,0 @@
package types
import (
"fmt"
"io"
"reflect"
)
// ScanFully uses fmt.Sscanf with verb to fully scan val into ptr.
func ScanFully(ptr interface{}, val string, verb byte) error {
t := reflect.ValueOf(ptr).Elem().Type()
// attempt to read extra bytes to make sure the value is consumed
var b []byte
n, err := fmt.Sscanf(val, "%"+string(verb)+"%s", ptr, &b)
switch {
case n < 1 || n == 1 && err != io.EOF:
return fmt.Errorf("failed to parse %q as %v: %v", val, t, err)
case n > 1:
return fmt.Errorf("failed to parse %q as %v: extra characters %q", val, t, string(b))
}
// n == 1 && err == io.EOF
return nil
}

16
vendor/manifest vendored
View File

@ -19,6 +19,14 @@
"path": "/matterclient",
"notests": true
},
{
"importpath": "github.com/BurntSushi/toml",
"repository": "https://github.com/BurntSushi/toml",
"vcs": "git",
"revision": "99064174e013895bbd9b025c31100bd1d9b590ca",
"branch": "master",
"notests": true
},
{
"importpath": "github.com/Sirupsen/logrus",
"repository": "https://github.com/Sirupsen/logrus",
@ -203,14 +211,6 @@
"path": "/websocket",
"notests": true
},
{
"importpath": "gopkg.in/gcfg.v1",
"repository": "https://gopkg.in/gcfg.v1",
"vcs": "",
"revision": "083575c3955c85df16fe9590cceab64d03f5eb6e",
"branch": "master",
"notests": true
},
{
"importpath": "gopkg.in/yaml.v2",
"repository": "https://gopkg.in/yaml.v2",