mirror of https://github.com/edouardparis/lntop
cli: get wallet balance
Edouard Paris
5 years ago
parent
c280242b8d
commit
8657b758c5
@ -1,15 +1,69 @@
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package config
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import (
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"io/ioutil"
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"log"
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"os"
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"gopkg.in/yaml.v2"
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)
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type Config struct {
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Logger Logger `yaml:"logger"`
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Network Network `yaml:"network"`
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}
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type Logger struct {
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Type string `yaml:"type"`
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}
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type Network struct {
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ID string
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Type string
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Status string
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Address string
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Cert string
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Macaroon string
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MacaroonTimeOut int64
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MacaroonIP string
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MaxMsgRecvSize int
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ConnTimeout int
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PoolCapacity int
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ID string `yaml:"id"`
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Type string `yaml:"type"`
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Status string `yaml:"status"`
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Address string `yaml:"address"`
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Cert string `yaml:"cert"`
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Macaroon string `yaml:"macaroon"`
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MacaroonTimeOut int64 `yaml:"macaroon_timeout"`
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MacaroonIP string `yaml:"macaroon_ip"`
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MaxMsgRecvSize int `yaml:"max_msg_recv_size"`
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ConnTimeout int `yaml:"conn_timeout"`
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PoolCapacity int `yaml:"pool_capacity"`
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}
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func Load(path string) (*Config, error) {
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c := &Config{}
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err := loadFromPath(path, c)
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if err != nil {
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return nil, err
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}
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return c, nil
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}
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// loadFromPath loads the configuration from configuration file path.
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func loadFromPath(path string, out interface{}) error {
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var err error
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f, err := os.Open(path)
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if f != nil {
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defer func() {
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ferr := f.Close()
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if ferr != nil {
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log.Println(ferr)
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}
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}()
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}
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if err != nil {
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return err
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}
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data, err := ioutil.ReadAll(f)
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if err != nil {
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return err
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}
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return yaml.Unmarshal(data, out)
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}
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@ -0,0 +1,11 @@
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !amd64 gccgo appengine
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package poly1305
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type mac struct{ macGeneric }
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func newMAC(key *[32]byte) mac { return mac{newMACGeneric(key)} }
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@ -1,25 +0,0 @@
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !go1.9
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package socket
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import "errors"
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func (c *Conn) recvMsg(m *Message, flags int) error {
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return errors.New("not implemented")
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}
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func (c *Conn) sendMsg(m *Message, flags int) error {
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return errors.New("not implemented")
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}
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func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
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return 0, errors.New("not implemented")
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}
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func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
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return 0, errors.New("not implemented")
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}
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@ -1,62 +0,0 @@
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !go1.9
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package socket
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import (
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"errors"
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"net"
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"os"
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"reflect"
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"runtime"
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)
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// A Conn represents a raw connection.
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type Conn struct {
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c net.Conn
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}
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// NewConn returns a new raw connection.
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func NewConn(c net.Conn) (*Conn, error) {
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return &Conn{c: c}, nil
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}
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func (o *Option) get(c *Conn, b []byte) (int, error) {
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s, err := socketOf(c.c)
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if err != nil {
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return 0, err
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}
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n, err := getsockopt(s, o.Level, o.Name, b)
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return n, os.NewSyscallError("getsockopt", err)
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}
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func (o *Option) set(c *Conn, b []byte) error {
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s, err := socketOf(c.c)
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if err != nil {
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return err
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}
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return os.NewSyscallError("setsockopt", setsockopt(s, o.Level, o.Name, b))
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}
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func socketOf(c net.Conn) (uintptr, error) {
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switch c.(type) {
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case *net.TCPConn, *net.UDPConn, *net.IPConn:
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v := reflect.ValueOf(c)
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switch e := v.Elem(); e.Kind() {
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case reflect.Struct:
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fd := e.FieldByName("conn").FieldByName("fd")
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switch e := fd.Elem(); e.Kind() {
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case reflect.Struct:
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sysfd := e.FieldByName("sysfd")
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if runtime.GOOS == "windows" {
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return uintptr(sysfd.Uint()), nil
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}
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return uintptr(sysfd.Int()), nil
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}
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}
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}
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return 0, errors.New("invalid type")
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}
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@ -1,56 +0,0 @@
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !go1.9
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package ipv4
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import "net"
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func (c *packetHandler) readFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
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c.rawOpt.RLock()
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oob := NewControlMessage(c.rawOpt.cflags)
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c.rawOpt.RUnlock()
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n, nn, _, src, err := c.ReadMsgIP(b, oob)
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if err != nil {
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return nil, nil, nil, err
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}
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var hs []byte
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if hs, p, err = slicePacket(b[:n]); err != nil {
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return nil, nil, nil, err
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}
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if h, err = ParseHeader(hs); err != nil {
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return nil, nil, nil, err
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}
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if nn > 0 {
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cm = new(ControlMessage)
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if err := cm.Parse(oob[:nn]); err != nil {
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return nil, nil, nil, err
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}
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}
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if src != nil && cm != nil {
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cm.Src = src.IP
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}
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return
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}
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func (c *packetHandler) writeTo(h *Header, p []byte, cm *ControlMessage) error {
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oob := cm.Marshal()
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wh, err := h.Marshal()
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if err != nil {
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return err
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}
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dst := new(net.IPAddr)
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if cm != nil {
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if ip := cm.Dst.To4(); ip != nil {
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dst.IP = ip
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}
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}
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if dst.IP == nil {
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dst.IP = h.Dst
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}
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wh = append(wh, p...)
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_, _, err = c.WriteMsgIP(wh, oob, dst)
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return err
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}
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@ -1,67 +0,0 @@
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build go1.9
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package ipv4
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import (
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"net"
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"golang.org/x/net/internal/socket"
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)
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func (c *packetHandler) readFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
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c.rawOpt.RLock()
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m := socket.Message{
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Buffers: [][]byte{b},
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OOB: NewControlMessage(c.rawOpt.cflags),
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}
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c.rawOpt.RUnlock()
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if err := c.RecvMsg(&m, 0); err != nil {
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return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
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}
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var hs []byte
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if hs, p, err = slicePacket(b[:m.N]); err != nil {
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return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
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}
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if h, err = ParseHeader(hs); err != nil {
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return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
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}
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if m.NN > 0 {
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cm = new(ControlMessage)
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if err := cm.Parse(m.OOB[:m.NN]); err != nil {
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return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
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}
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}
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if src, ok := m.Addr.(*net.IPAddr); ok && cm != nil {
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cm.Src = src.IP
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}
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return
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}
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func (c *packetHandler) writeTo(h *Header, p []byte, cm *ControlMessage) error {
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m := socket.Message{
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OOB: cm.Marshal(),
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}
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wh, err := h.Marshal()
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if err != nil {
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return err
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}
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m.Buffers = [][]byte{wh, p}
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dst := new(net.IPAddr)
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if cm != nil {
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if ip := cm.Dst.To4(); ip != nil {
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dst.IP = ip
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}
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}
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if dst.IP == nil {
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dst.IP = h.Dst
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}
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m.Addr = dst
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if err := c.SendMsg(&m, 0); err != nil {
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return &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Addr: opAddr(dst), Err: err}
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}
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return nil
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}
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@ -1,59 +0,0 @@
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !go1.9
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// +build darwin dragonfly freebsd linux netbsd openbsd solaris
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package ipv4
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import "net"
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func (c *payloadHandler) readFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
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c.rawOpt.RLock()
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oob := NewControlMessage(c.rawOpt.cflags)
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c.rawOpt.RUnlock()
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var nn int
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switch c := c.PacketConn.(type) {
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case *net.UDPConn:
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if n, nn, _, src, err = c.ReadMsgUDP(b, oob); err != nil {
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return 0, nil, nil, err
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}
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case *net.IPConn:
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nb := make([]byte, maxHeaderLen+len(b))
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if n, nn, _, src, err = c.ReadMsgIP(nb, oob); err != nil {
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return 0, nil, nil, err
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}
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hdrlen := int(nb[0]&0x0f) << 2
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copy(b, nb[hdrlen:])
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n -= hdrlen
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default:
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return 0, nil, nil, &net.OpError{Op: "read", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Err: errInvalidConnType}
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}
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if nn > 0 {
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cm = new(ControlMessage)
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if err = cm.Parse(oob[:nn]); err != nil {
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return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
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}
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}
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if cm != nil {
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cm.Src = netAddrToIP4(src)
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}
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return
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}
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func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
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oob := cm.Marshal()
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if dst == nil {
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return 0, &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errMissingAddress}
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}
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switch c := c.PacketConn.(type) {
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case *net.UDPConn:
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n, _, err = c.WriteMsgUDP(b, oob, dst.(*net.UDPAddr))
|
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case *net.IPConn:
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n, _, err = c.WriteMsgIP(b, oob, dst.(*net.IPAddr))
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default:
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return 0, &net.OpError{Op: "write", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Addr: opAddr(dst), Err: errInvalidConnType}
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}
|
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return
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}
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@ -1,67 +0,0 @@
|
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// Copyright 2017 The Go Authors. All rights reserved.
|
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// Use of this source code is governed by a BSD-style
|
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// license that can be found in the LICENSE file.
|
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|
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// +build go1.9
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// +build darwin dragonfly freebsd linux netbsd openbsd solaris
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|
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package ipv4
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import (
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"net"
|
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"golang.org/x/net/internal/socket"
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)
|
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|
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func (c *payloadHandler) readFrom(b []byte) (int, *ControlMessage, net.Addr, error) {
|
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c.rawOpt.RLock()
|
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m := socket.Message{
|
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OOB: NewControlMessage(c.rawOpt.cflags),
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}
|
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c.rawOpt.RUnlock()
|
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switch c.PacketConn.(type) {
|
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case *net.UDPConn:
|
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m.Buffers = [][]byte{b}
|
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if err := c.RecvMsg(&m, 0); err != nil {
|
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return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
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}
|
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case *net.IPConn:
|
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h := make([]byte, HeaderLen)
|
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m.Buffers = [][]byte{h, b}
|
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if err := c.RecvMsg(&m, 0); err != nil {
|
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return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
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}
|
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hdrlen := int(h[0]&0x0f) << 2
|
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if hdrlen > len(h) {
|
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d := hdrlen - len(h)
|
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copy(b, b[d:])
|
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m.N -= d
|
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} else {
|
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m.N -= hdrlen
|
||||
}
|
||||
default:
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
|
||||
}
|
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var cm *ControlMessage
|
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if m.NN > 0 {
|
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cm = new(ControlMessage)
|
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if err := cm.Parse(m.OOB[:m.NN]); err != nil {
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
||||
}
|
||||
cm.Src = netAddrToIP4(m.Addr)
|
||||
}
|
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return m.N, cm, m.Addr, nil
|
||||
}
|
||||
|
||||
func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (int, error) {
|
||||
m := socket.Message{
|
||||
Buffers: [][]byte{b},
|
||||
OOB: cm.Marshal(),
|
||||
Addr: dst,
|
||||
}
|
||||
err := c.SendMsg(&m, 0)
|
||||
if err != nil {
|
||||
err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
|
||||
}
|
||||
return m.N, err
|
||||
}
|
||||
@ -1,55 +0,0 @@
|
||||
// Copyright 2013 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.
|
||||
|
||||
// +build !go1.9
|
||||
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
|
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|
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package ipv6
|
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|
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import "net"
|
||||
|
||||
func (c *payloadHandler) readFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
|
||||
c.rawOpt.RLock()
|
||||
oob := NewControlMessage(c.rawOpt.cflags)
|
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c.rawOpt.RUnlock()
|
||||
var nn int
|
||||
switch c := c.PacketConn.(type) {
|
||||
case *net.UDPConn:
|
||||
if n, nn, _, src, err = c.ReadMsgUDP(b, oob); err != nil {
|
||||
return 0, nil, nil, err
|
||||
}
|
||||
case *net.IPConn:
|
||||
if n, nn, _, src, err = c.ReadMsgIP(b, oob); err != nil {
|
||||
return 0, nil, nil, err
|
||||
}
|
||||
default:
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Err: errInvalidConnType}
|
||||
}
|
||||
if nn > 0 {
|
||||
cm = new(ControlMessage)
|
||||
if err = cm.Parse(oob[:nn]); err != nil {
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
||||
}
|
||||
}
|
||||
if cm != nil {
|
||||
cm.Src = netAddrToIP16(src)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
|
||||
oob := cm.Marshal()
|
||||
if dst == nil {
|
||||
return 0, &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errMissingAddress}
|
||||
}
|
||||
switch c := c.PacketConn.(type) {
|
||||
case *net.UDPConn:
|
||||
n, _, err = c.WriteMsgUDP(b, oob, dst.(*net.UDPAddr))
|
||||
case *net.IPConn:
|
||||
n, _, err = c.WriteMsgIP(b, oob, dst.(*net.IPAddr))
|
||||
default:
|
||||
return 0, &net.OpError{Op: "write", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Addr: opAddr(dst), Err: errInvalidConnType}
|
||||
}
|
||||
return
|
||||
}
|
||||
@ -1,57 +0,0 @@
|
||||
// Copyright 2017 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.
|
||||
|
||||
// +build go1.9
|
||||
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
|
||||
|
||||
package ipv6
|
||||
|
||||
import (
|
||||
"net"
|
||||
|
||||
"golang.org/x/net/internal/socket"
|
||||
)
|
||||
|
||||
func (c *payloadHandler) readFrom(b []byte) (int, *ControlMessage, net.Addr, error) {
|
||||
c.rawOpt.RLock()
|
||||
m := socket.Message{
|
||||
Buffers: [][]byte{b},
|
||||
OOB: NewControlMessage(c.rawOpt.cflags),
|
||||
}
|
||||
c.rawOpt.RUnlock()
|
||||
switch c.PacketConn.(type) {
|
||||
case *net.UDPConn:
|
||||
if err := c.RecvMsg(&m, 0); err != nil {
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
||||
}
|
||||
case *net.IPConn:
|
||||
if err := c.RecvMsg(&m, 0); err != nil {
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
||||
}
|
||||
default:
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
|
||||
}
|
||||
var cm *ControlMessage
|
||||
if m.NN > 0 {
|
||||
cm = new(ControlMessage)
|
||||
if err := cm.Parse(m.OOB[:m.NN]); err != nil {
|
||||
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
|
||||
}
|
||||
cm.Src = netAddrToIP16(m.Addr)
|
||||
}
|
||||
return m.N, cm, m.Addr, nil
|
||||
}
|
||||
|
||||
func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (int, error) {
|
||||
m := socket.Message{
|
||||
Buffers: [][]byte{b},
|
||||
OOB: cm.Marshal(),
|
||||
Addr: dst,
|
||||
}
|
||||
err := c.SendMsg(&m, 0)
|
||||
if err != nil {
|
||||
err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
|
||||
}
|
||||
return m.N, err
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
// Copyright 2019 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 cpu
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
// hostByteOrder returns binary.LittleEndian on little-endian machines and
|
||||
// binary.BigEndian on big-endian machines.
|
||||
func hostByteOrder() binary.ByteOrder {
|
||||
switch runtime.GOARCH {
|
||||
case "386", "amd64", "amd64p32",
|
||||
"arm", "arm64",
|
||||
"mipsle", "mips64le", "mips64p32le",
|
||||
"ppc64le",
|
||||
"riscv", "riscv64":
|
||||
return binary.LittleEndian
|
||||
case "armbe", "arm64be",
|
||||
"mips", "mips64", "mips64p32",
|
||||
"ppc", "ppc64",
|
||||
"s390", "s390x",
|
||||
"sparc", "sparc64":
|
||||
return binary.BigEndian
|
||||
}
|
||||
panic("unknown architecture")
|
||||
}
|
||||
@ -0,0 +1,89 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package cpu implements processor feature detection for
|
||||
// various CPU architectures.
|
||||
package cpu
|
||||
|
||||
// CacheLinePad is used to pad structs to avoid false sharing.
|
||||
type CacheLinePad struct{ _ [cacheLineSize]byte }
|
||||
|
||||
// X86 contains the supported CPU features of the
|
||||
// current X86/AMD64 platform. If the current platform
|
||||
// is not X86/AMD64 then all feature flags are false.
|
||||
//
|
||||
// X86 is padded to avoid false sharing. Further the HasAVX
|
||||
// and HasAVX2 are only set if the OS supports XMM and YMM
|
||||
// registers in addition to the CPUID feature bit being set.
|
||||
var X86 struct {
|
||||
_ CacheLinePad
|
||||
HasAES bool // AES hardware implementation (AES NI)
|
||||
HasADX bool // Multi-precision add-carry instruction extensions
|
||||
HasAVX bool // Advanced vector extension
|
||||
HasAVX2 bool // Advanced vector extension 2
|
||||
HasBMI1 bool // Bit manipulation instruction set 1
|
||||
HasBMI2 bool // Bit manipulation instruction set 2
|
||||
HasERMS bool // Enhanced REP for MOVSB and STOSB
|
||||
HasFMA bool // Fused-multiply-add instructions
|
||||
HasOSXSAVE bool // OS supports XSAVE/XRESTOR for saving/restoring XMM registers.
|
||||
HasPCLMULQDQ bool // PCLMULQDQ instruction - most often used for AES-GCM
|
||||
HasPOPCNT bool // Hamming weight instruction POPCNT.
|
||||
HasRDRAND bool // RDRAND instruction (on-chip random number generator)
|
||||
HasRDSEED bool // RDSEED instruction (on-chip random number generator)
|
||||
HasSSE2 bool // Streaming SIMD extension 2 (always available on amd64)
|
||||
HasSSE3 bool // Streaming SIMD extension 3
|
||||
HasSSSE3 bool // Supplemental streaming SIMD extension 3
|
||||
HasSSE41 bool // Streaming SIMD extension 4 and 4.1
|
||||
HasSSE42 bool // Streaming SIMD extension 4 and 4.2
|
||||
_ CacheLinePad
|
||||
}
|
||||
|
||||
// ARM64 contains the supported CPU features of the
|
||||
// current ARMv8(aarch64) platform. If the current platform
|
||||
// is not arm64 then all feature flags are false.
|
||||
var ARM64 struct {
|
||||
_ CacheLinePad
|
||||
HasFP bool // Floating-point instruction set (always available)
|
||||
HasASIMD bool // Advanced SIMD (always available)
|
||||
HasEVTSTRM bool // Event stream support
|
||||
HasAES bool // AES hardware implementation
|
||||
HasPMULL bool // Polynomial multiplication instruction set
|
||||
HasSHA1 bool // SHA1 hardware implementation
|
||||
HasSHA2 bool // SHA2 hardware implementation
|
||||
HasCRC32 bool // CRC32 hardware implementation
|
||||
HasATOMICS bool // Atomic memory operation instruction set
|
||||
HasFPHP bool // Half precision floating-point instruction set
|
||||
HasASIMDHP bool // Advanced SIMD half precision instruction set
|
||||
HasCPUID bool // CPUID identification scheme registers
|
||||
HasASIMDRDM bool // Rounding double multiply add/subtract instruction set
|
||||
HasJSCVT bool // Javascript conversion from floating-point to integer
|
||||
HasFCMA bool // Floating-point multiplication and addition of complex numbers
|
||||
HasLRCPC bool // Release Consistent processor consistent support
|
||||
HasDCPOP bool // Persistent memory support
|
||||
HasSHA3 bool // SHA3 hardware implementation
|
||||
HasSM3 bool // SM3 hardware implementation
|
||||
HasSM4 bool // SM4 hardware implementation
|
||||
HasASIMDDP bool // Advanced SIMD double precision instruction set
|
||||
HasSHA512 bool // SHA512 hardware implementation
|
||||
HasSVE bool // Scalable Vector Extensions
|
||||
HasASIMDFHM bool // Advanced SIMD multiplication FP16 to FP32
|
||||
_ CacheLinePad
|
||||
}
|
||||
|
||||
// PPC64 contains the supported CPU features of the current ppc64/ppc64le platforms.
|
||||
// If the current platform is not ppc64/ppc64le then all feature flags are false.
|
||||
//
|
||||
// For ppc64/ppc64le, it is safe to check only for ISA level starting on ISA v3.00,
|
||||
// since there are no optional categories. There are some exceptions that also
|
||||
// require kernel support to work (DARN, SCV), so there are feature bits for
|
||||
// those as well. The minimum processor requirement is POWER8 (ISA 2.07).
|
||||
// The struct is padded to avoid false sharing.
|
||||
var PPC64 struct {
|
||||
_ CacheLinePad
|
||||
HasDARN bool // Hardware random number generator (requires kernel enablement)
|
||||
HasSCV bool // Syscall vectored (requires kernel enablement)
|
||||
IsPOWER8 bool // ISA v2.07 (POWER8)
|
||||
IsPOWER9 bool // ISA v3.00 (POWER9)
|
||||
_ CacheLinePad
|
||||
}
|
||||
@ -0,0 +1,9 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func doinit() {}
|
||||
@ -0,0 +1,16 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build !gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
// cpuid is implemented in cpu_x86.s for gc compiler
|
||||
// and in cpu_gccgo.c for gccgo.
|
||||
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
|
||||
|
||||
// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
|
||||
// and in cpu_gccgo.c for gccgo.
|
||||
func xgetbv() (eax, edx uint32)
|
||||
@ -0,0 +1,43 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gccgo
|
||||
|
||||
#include <cpuid.h>
|
||||
#include <stdint.h>
|
||||
|
||||
// Need to wrap __get_cpuid_count because it's declared as static.
|
||||
int
|
||||
gccgoGetCpuidCount(uint32_t leaf, uint32_t subleaf,
|
||||
uint32_t *eax, uint32_t *ebx,
|
||||
uint32_t *ecx, uint32_t *edx)
|
||||
{
|
||||
return __get_cpuid_count(leaf, subleaf, eax, ebx, ecx, edx);
|
||||
}
|
||||
|
||||
// xgetbv reads the contents of an XCR (Extended Control Register)
|
||||
// specified in the ECX register into registers EDX:EAX.
|
||||
// Currently, the only supported value for XCR is 0.
|
||||
//
|
||||
// TODO: Replace with a better alternative:
|
||||
//
|
||||
// #include <xsaveintrin.h>
|
||||
//
|
||||
// #pragma GCC target("xsave")
|
||||
//
|
||||
// void gccgoXgetbv(uint32_t *eax, uint32_t *edx) {
|
||||
// unsigned long long x = _xgetbv(0);
|
||||
// *eax = x & 0xffffffff;
|
||||
// *edx = (x >> 32) & 0xffffffff;
|
||||
// }
|
||||
//
|
||||
// Note that _xgetbv is defined starting with GCC 8.
|
||||
void
|
||||
gccgoXgetbv(uint32_t *eax, uint32_t *edx)
|
||||
{
|
||||
__asm(" xorl %%ecx, %%ecx\n"
|
||||
" xgetbv"
|
||||
: "=a"(*eax), "=d"(*edx));
|
||||
}
|
||||
@ -0,0 +1,26 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build gccgo
|
||||
|
||||
package cpu
|
||||
|
||||
//extern gccgoGetCpuidCount
|
||||
func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)
|
||||
|
||||
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
|
||||
var a, b, c, d uint32
|
||||
gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
|
||||
return a, b, c, d
|
||||
}
|
||||
|
||||
//extern gccgoXgetbv
|
||||
func gccgoXgetbv(eax, edx *uint32)
|
||||
|
||||
func xgetbv() (eax, edx uint32) {
|
||||
var a, d uint32
|
||||
gccgoXgetbv(&a, &d)
|
||||
return a, d
|
||||
}
|
||||
@ -0,0 +1,55 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//+build !amd64,!amd64p32,!386
|
||||
|
||||
package cpu
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
)
|
||||
|
||||
const (
|
||||
_AT_HWCAP = 16
|
||||
_AT_HWCAP2 = 26
|
||||
|
||||
procAuxv = "/proc/self/auxv"
|
||||
|
||||
uintSize = int(32 << (^uint(0) >> 63))
|
||||
)
|
||||
|
||||
// For those platforms don't have a 'cpuid' equivalent we use HWCAP/HWCAP2
|
||||
// These are initialized in cpu_$GOARCH.go
|
||||
// and should not be changed after they are initialized.
|
||||
var HWCap uint
|
||||
var HWCap2 uint
|
||||
|
||||
func init() {
|
||||
buf, err := ioutil.ReadFile(procAuxv)
|
||||
if err != nil {
|
||||
panic("read proc auxv failed: " + err.Error())
|
||||
}
|
||||
|
||||
bo := hostByteOrder()
|
||||
for len(buf) >= 2*(uintSize/8) {
|
||||
var tag, val uint
|
||||
switch uintSize {
|
||||
case 32:
|
||||
tag = uint(bo.Uint32(buf[0:]))
|
||||
val = uint(bo.Uint32(buf[4:]))
|
||||
buf = buf[8:]
|
||||
case 64:
|
||||
tag = uint(bo.Uint64(buf[0:]))
|
||||
val = uint(bo.Uint64(buf[8:]))
|
||||
buf = buf[16:]
|
||||
}
|
||||
switch tag {
|
||||
case _AT_HWCAP:
|
||||
HWCap = val
|
||||
case _AT_HWCAP2:
|
||||
HWCap2 = val
|
||||
}
|
||||
}
|
||||
doinit()
|
||||
}
|
||||
@ -0,0 +1,67 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 64
|
||||
|
||||
// HWCAP/HWCAP2 bits. These are exposed by Linux.
|
||||
const (
|
||||
hwcap_FP = 1 << 0
|
||||
hwcap_ASIMD = 1 << 1
|
||||
hwcap_EVTSTRM = 1 << 2
|
||||
hwcap_AES = 1 << 3
|
||||
hwcap_PMULL = 1 << 4
|
||||
hwcap_SHA1 = 1 << 5
|
||||
hwcap_SHA2 = 1 << 6
|
||||
hwcap_CRC32 = 1 << 7
|
||||
hwcap_ATOMICS = 1 << 8
|
||||
hwcap_FPHP = 1 << 9
|
||||
hwcap_ASIMDHP = 1 << 10
|
||||
hwcap_CPUID = 1 << 11
|
||||
hwcap_ASIMDRDM = 1 << 12
|
||||
hwcap_JSCVT = 1 << 13
|
||||
hwcap_FCMA = 1 << 14
|
||||
hwcap_LRCPC = 1 << 15
|
||||
hwcap_DCPOP = 1 << 16
|
||||
hwcap_SHA3 = 1 << 17
|
||||
hwcap_SM3 = 1 << 18
|
||||
hwcap_SM4 = 1 << 19
|
||||
hwcap_ASIMDDP = 1 << 20
|
||||
hwcap_SHA512 = 1 << 21
|
||||
hwcap_SVE = 1 << 22
|
||||
hwcap_ASIMDFHM = 1 << 23
|
||||
)
|
||||
|
||||
func doinit() {
|
||||
// HWCAP feature bits
|
||||
ARM64.HasFP = isSet(HWCap, hwcap_FP)
|
||||
ARM64.HasASIMD = isSet(HWCap, hwcap_ASIMD)
|
||||
ARM64.HasEVTSTRM = isSet(HWCap, hwcap_EVTSTRM)
|
||||
ARM64.HasAES = isSet(HWCap, hwcap_AES)
|
||||
ARM64.HasPMULL = isSet(HWCap, hwcap_PMULL)
|
||||
ARM64.HasSHA1 = isSet(HWCap, hwcap_SHA1)
|
||||
ARM64.HasSHA2 = isSet(HWCap, hwcap_SHA2)
|
||||
ARM64.HasCRC32 = isSet(HWCap, hwcap_CRC32)
|
||||
ARM64.HasATOMICS = isSet(HWCap, hwcap_ATOMICS)
|
||||
ARM64.HasFPHP = isSet(HWCap, hwcap_FPHP)
|
||||
ARM64.HasASIMDHP = isSet(HWCap, hwcap_ASIMDHP)
|
||||
ARM64.HasCPUID = isSet(HWCap, hwcap_CPUID)
|
||||
ARM64.HasASIMDRDM = isSet(HWCap, hwcap_ASIMDRDM)
|
||||
ARM64.HasJSCVT = isSet(HWCap, hwcap_JSCVT)
|
||||
ARM64.HasFCMA = isSet(HWCap, hwcap_FCMA)
|
||||
ARM64.HasLRCPC = isSet(HWCap, hwcap_LRCPC)
|
||||
ARM64.HasDCPOP = isSet(HWCap, hwcap_DCPOP)
|
||||
ARM64.HasSHA3 = isSet(HWCap, hwcap_SHA3)
|
||||
ARM64.HasSM3 = isSet(HWCap, hwcap_SM3)
|
||||
ARM64.HasSM4 = isSet(HWCap, hwcap_SM4)
|
||||
ARM64.HasASIMDDP = isSet(HWCap, hwcap_ASIMDDP)
|
||||
ARM64.HasSHA512 = isSet(HWCap, hwcap_SHA512)
|
||||
ARM64.HasSVE = isSet(HWCap, hwcap_SVE)
|
||||
ARM64.HasASIMDFHM = isSet(HWCap, hwcap_ASIMDFHM)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
||||
@ -0,0 +1,11 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build mips64 mips64le
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func doinit() {}
|
||||
@ -0,0 +1,11 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build mips mipsle
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 32
|
||||
|
||||
func doinit() {}
|
||||
@ -0,0 +1,11 @@
|
||||
// Copyright 2019 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.
|
||||
|
||||
// +build !linux,arm64
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 64
|
||||
|
||||
func doinit() {}
|
||||
@ -0,0 +1,32 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build ppc64 ppc64le
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 128
|
||||
|
||||
// HWCAP/HWCAP2 bits. These are exposed by the kernel.
|
||||
const (
|
||||
// ISA Level
|
||||
_PPC_FEATURE2_ARCH_2_07 = 0x80000000
|
||||
_PPC_FEATURE2_ARCH_3_00 = 0x00800000
|
||||
|
||||
// CPU features
|
||||
_PPC_FEATURE2_DARN = 0x00200000
|
||||
_PPC_FEATURE2_SCV = 0x00100000
|
||||
)
|
||||
|
||||
func doinit() {
|
||||
// HWCAP2 feature bits
|
||||
PPC64.IsPOWER8 = isSet(HWCap2, _PPC_FEATURE2_ARCH_2_07)
|
||||
PPC64.IsPOWER9 = isSet(HWCap2, _PPC_FEATURE2_ARCH_3_00)
|
||||
PPC64.HasDARN = isSet(HWCap2, _PPC_FEATURE2_DARN)
|
||||
PPC64.HasSCV = isSet(HWCap2, _PPC_FEATURE2_SCV)
|
||||
}
|
||||
|
||||
func isSet(hwc uint, value uint) bool {
|
||||
return hwc&value != 0
|
||||
}
|
||||
@ -0,0 +1,9 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 256
|
||||
|
||||
func doinit() {}
|
||||
@ -0,0 +1,57 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
|
||||
package cpu
|
||||
|
||||
const cacheLineSize = 64
|
||||
|
||||
func init() {
|
||||
maxID, _, _, _ := cpuid(0, 0)
|
||||
|
||||
if maxID < 1 {
|
||||
return
|
||||
}
|
||||
|
||||
_, _, ecx1, edx1 := cpuid(1, 0)
|
||||
X86.HasSSE2 = isSet(26, edx1)
|
||||
|
||||
X86.HasSSE3 = isSet(0, ecx1)
|
||||
X86.HasPCLMULQDQ = isSet(1, ecx1)
|
||||
X86.HasSSSE3 = isSet(9, ecx1)
|
||||
X86.HasFMA = isSet(12, ecx1)
|
||||
X86.HasSSE41 = isSet(19, ecx1)
|
||||
X86.HasSSE42 = isSet(20, ecx1)
|
||||
X86.HasPOPCNT = isSet(23, ecx1)
|
||||
X86.HasAES = isSet(25, ecx1)
|
||||
X86.HasOSXSAVE = isSet(27, ecx1)
|
||||
X86.HasRDRAND = isSet(30, ecx1)
|
||||
|
||||
osSupportsAVX := false
|
||||
// For XGETBV, OSXSAVE bit is required and sufficient.
|
||||
if X86.HasOSXSAVE {
|
||||
eax, _ := xgetbv()
|
||||
// Check if XMM and YMM registers have OS support.
|
||||
osSupportsAVX = isSet(1, eax) && isSet(2, eax)
|
||||
}
|
||||
|
||||
X86.HasAVX = isSet(28, ecx1) && osSupportsAVX
|
||||
|
||||
if maxID < 7 {
|
||||
return
|
||||
}
|
||||
|
||||
_, ebx7, _, _ := cpuid(7, 0)
|
||||
X86.HasBMI1 = isSet(3, ebx7)
|
||||
X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX
|
||||
X86.HasBMI2 = isSet(8, ebx7)
|
||||
X86.HasERMS = isSet(9, ebx7)
|
||||
X86.HasRDSEED = isSet(18, ebx7)
|
||||
X86.HasADX = isSet(19, ebx7)
|
||||
}
|
||||
|
||||
func isSet(bitpos uint, value uint32) bool {
|
||||
return value&(1<<bitpos) != 0
|
||||
}
|
||||
@ -0,0 +1,27 @@
|
||||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build 386 amd64 amd64p32
|
||||
// +build !gccgo
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
|
||||
TEXT ·cpuid(SB), NOSPLIT, $0-24
|
||||
MOVL eaxArg+0(FP), AX
|
||||
MOVL ecxArg+4(FP), CX
|
||||
CPUID
|
||||
MOVL AX, eax+8(FP)
|
||||
MOVL BX, ebx+12(FP)
|
||||
MOVL CX, ecx+16(FP)
|
||||
MOVL DX, edx+20(FP)
|
||||
RET
|
||||
|
||||
// func xgetbv() (eax, edx uint32)
|
||||
TEXT ·xgetbv(SB),NOSPLIT,$0-8
|
||||
MOVL $0, CX
|
||||
XGETBV
|
||||
MOVL AX, eax+0(FP)
|
||||
MOVL DX, edx+4(FP)
|
||||
RET
|
||||
@ -0,0 +1,335 @@
|
||||
// Copyright 2019 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.
|
||||
|
||||
// +build ignore
|
||||
|
||||
/*
|
||||
This program reads a file containing function prototypes
|
||||
(like syscall_solaris.go) and generates system call bodies.
|
||||
The prototypes are marked by lines beginning with "//sys"
|
||||
and read like func declarations if //sys is replaced by func, but:
|
||||
* The parameter lists must give a name for each argument.
|
||||
This includes return parameters.
|
||||
* The parameter lists must give a type for each argument:
|
||||
the (x, y, z int) shorthand is not allowed.
|
||||
* If the return parameter is an error number, it must be named err.
|
||||
* If go func name needs to be different than its libc name,
|
||||
* or the function is not in libc, name could be specified
|
||||
* at the end, after "=" sign, like
|
||||
//sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
|
||||
*/
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"regexp"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
b32 = flag.Bool("b32", false, "32bit big-endian")
|
||||
l32 = flag.Bool("l32", false, "32bit little-endian")
|
||||
tags = flag.String("tags", "", "build tags")
|
||||
)
|
||||
|
||||
// cmdLine returns this programs's commandline arguments
|
||||
func cmdLine() string {
|
||||
return "go run mksyscall_solaris.go " + strings.Join(os.Args[1:], " ")
|
||||
}
|
||||
|
||||
// buildTags returns build tags
|
||||
func buildTags() string {
|
||||
return *tags
|
||||
}
|
||||
|
||||
// Param is function parameter
|
||||
type Param struct {
|
||||
Name string
|
||||
Type string
|
||||
}
|
||||
|
||||
// usage prints the program usage
|
||||
func usage() {
|
||||
fmt.Fprintf(os.Stderr, "usage: go run mksyscall_solaris.go [-b32 | -l32] [-tags x,y] [file ...]\n")
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
// parseParamList parses parameter list and returns a slice of parameters
|
||||
func parseParamList(list string) []string {
|
||||
list = strings.TrimSpace(list)
|
||||
if list == "" {
|
||||
return []string{}
|
||||
}
|
||||
return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
|
||||
}
|
||||
|
||||
// parseParam splits a parameter into name and type
|
||||
func parseParam(p string) Param {
|
||||
ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
|
||||
if ps == nil {
|
||||
fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
|
||||
os.Exit(1)
|
||||
}
|
||||
return Param{ps[1], ps[2]}
|
||||
}
|
||||
|
||||
func main() {
|
||||
flag.Usage = usage
|
||||
flag.Parse()
|
||||
if len(flag.Args()) <= 0 {
|
||||
fmt.Fprintf(os.Stderr, "no files to parse provided\n")
|
||||
usage()
|
||||
}
|
||||
|
||||
endianness := ""
|
||||
if *b32 {
|
||||
endianness = "big-endian"
|
||||
} else if *l32 {
|
||||
endianness = "little-endian"
|
||||
}
|
||||
|
||||
pack := ""
|
||||
text := ""
|
||||
dynimports := ""
|
||||
linknames := ""
|
||||
var vars []string
|
||||
for _, path := range flag.Args() {
|
||||
file, err := os.Open(path)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
s := bufio.NewScanner(file)
|
||||
for s.Scan() {
|
||||
t := s.Text()
|
||||
t = strings.TrimSpace(t)
|
||||
t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
|
||||
if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
|
||||
pack = p[1]
|
||||
}
|
||||
nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
|
||||
if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
// Line must be of the form
|
||||
// func Open(path string, mode int, perm int) (fd int, err error)
|
||||
// Split into name, in params, out params.
|
||||
f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
|
||||
if f == nil {
|
||||
fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
|
||||
os.Exit(1)
|
||||
}
|
||||
funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
|
||||
|
||||
// Split argument lists on comma.
|
||||
in := parseParamList(inps)
|
||||
out := parseParamList(outps)
|
||||
|
||||
inps = strings.Join(in, ", ")
|
||||
outps = strings.Join(out, ", ")
|
||||
|
||||
// Try in vain to keep people from editing this file.
|
||||
// The theory is that they jump into the middle of the file
|
||||
// without reading the header.
|
||||
text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
|
||||
|
||||
// So file name.
|
||||
if modname == "" {
|
||||
modname = "libc"
|
||||
}
|
||||
|
||||
// System call name.
|
||||
if sysname == "" {
|
||||
sysname = funct
|
||||
}
|
||||
|
||||
// System call pointer variable name.
|
||||
sysvarname := fmt.Sprintf("proc%s", sysname)
|
||||
|
||||
strconvfunc := "BytePtrFromString"
|
||||
strconvtype := "*byte"
|
||||
|
||||
sysname = strings.ToLower(sysname) // All libc functions are lowercase.
|
||||
|
||||
// Runtime import of function to allow cross-platform builds.
|
||||
dynimports += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"%s.so\"\n", sysname, sysname, modname)
|
||||
// Link symbol to proc address variable.
|
||||
linknames += fmt.Sprintf("//go:linkname %s libc_%s\n", sysvarname, sysname)
|
||||
// Library proc address variable.
|
||||
vars = append(vars, sysvarname)
|
||||
|
||||
// Go function header.
|
||||
outlist := strings.Join(out, ", ")
|
||||
if outlist != "" {
|
||||
outlist = fmt.Sprintf(" (%s)", outlist)
|
||||
}
|
||||
if text != "" {
|
||||
text += "\n"
|
||||
}
|
||||
text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outlist)
|
||||
|
||||
// Check if err return available
|
||||
errvar := ""
|
||||
for _, param := range out {
|
||||
p := parseParam(param)
|
||||
if p.Type == "error" {
|
||||
errvar = p.Name
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
// Prepare arguments to Syscall.
|
||||
var args []string
|
||||
n := 0
|
||||
for _, param := range in {
|
||||
p := parseParam(param)
|
||||
if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
|
||||
args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
|
||||
} else if p.Type == "string" && errvar != "" {
|
||||
text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
|
||||
text += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
|
||||
text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
|
||||
args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
|
||||
n++
|
||||
} else if p.Type == "string" {
|
||||
fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
|
||||
text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
|
||||
text += fmt.Sprintf("\t_p%d, _ = %s(%s)\n", n, strconvfunc, p.Name)
|
||||
args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
|
||||
n++
|
||||
} else if s := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); s != nil {
|
||||
// Convert slice into pointer, length.
|
||||
// Have to be careful not to take address of &a[0] if len == 0:
|
||||
// pass nil in that case.
|
||||
text += fmt.Sprintf("\tvar _p%d *%s\n", n, s[1])
|
||||
text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
|
||||
args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
|
||||
n++
|
||||
} else if p.Type == "int64" && endianness != "" {
|
||||
if endianness == "big-endian" {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
|
||||
}
|
||||
} else if p.Type == "bool" {
|
||||
text += fmt.Sprintf("\tvar _p%d uint32\n", n)
|
||||
text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
|
||||
args = append(args, fmt.Sprintf("uintptr(_p%d)", n))
|
||||
n++
|
||||
} else {
|
||||
args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
|
||||
}
|
||||
}
|
||||
nargs := len(args)
|
||||
|
||||
// Determine which form to use; pad args with zeros.
|
||||
asm := "sysvicall6"
|
||||
if nonblock != nil {
|
||||
asm = "rawSysvicall6"
|
||||
}
|
||||
if len(args) <= 6 {
|
||||
for len(args) < 6 {
|
||||
args = append(args, "0")
|
||||
}
|
||||
} else {
|
||||
fmt.Fprintf(os.Stderr, "%s: too many arguments to system call\n", path)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
// Actual call.
|
||||
arglist := strings.Join(args, ", ")
|
||||
call := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, arglist)
|
||||
|
||||
// Assign return values.
|
||||
body := ""
|
||||
ret := []string{"_", "_", "_"}
|
||||
doErrno := false
|
||||
for i := 0; i < len(out); i++ {
|
||||
p := parseParam(out[i])
|
||||
reg := ""
|
||||
if p.Name == "err" {
|
||||
reg = "e1"
|
||||
ret[2] = reg
|
||||
doErrno = true
|
||||
} else {
|
||||
reg = fmt.Sprintf("r%d", i)
|
||||
ret[i] = reg
|
||||
}
|
||||
if p.Type == "bool" {
|
||||
reg = fmt.Sprintf("%d != 0", reg)
|
||||
}
|
||||
if p.Type == "int64" && endianness != "" {
|
||||
// 64-bit number in r1:r0 or r0:r1.
|
||||
if i+2 > len(out) {
|
||||
fmt.Fprintf(os.Stderr, "%s: not enough registers for int64 return\n", path)
|
||||
os.Exit(1)
|
||||
}
|
||||
if endianness == "big-endian" {
|
||||
reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
|
||||
} else {
|
||||
reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
|
||||
}
|
||||
ret[i] = fmt.Sprintf("r%d", i)
|
||||
ret[i+1] = fmt.Sprintf("r%d", i+1)
|
||||
}
|
||||
if reg != "e1" {
|
||||
body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
|
||||
}
|
||||
}
|
||||
if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
|
||||
text += fmt.Sprintf("\t%s\n", call)
|
||||
} else {
|
||||
text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
|
||||
}
|
||||
text += body
|
||||
|
||||
if doErrno {
|
||||
text += "\tif e1 != 0 {\n"
|
||||
text += "\t\terr = e1\n"
|
||||
text += "\t}\n"
|
||||
}
|
||||
text += "\treturn\n"
|
||||
text += "}\n"
|
||||
}
|
||||
if err := s.Err(); err != nil {
|
||||
fmt.Fprintf(os.Stderr, err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
file.Close()
|
||||
}
|
||||
imp := ""
|
||||
if pack != "unix" {
|
||||
imp = "import \"golang.org/x/sys/unix\"\n"
|
||||
|
||||
}
|
||||
vardecls := "\t" + strings.Join(vars, ",\n\t")
|
||||
vardecls += " syscallFunc"
|
||||
fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, text)
|
||||
}
|
||||
|
||||
const srcTemplate = `// %s
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build %s
|
||||
|
||||
package %s
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
%s
|
||||
%s
|
||||
%s
|
||||
var (
|
||||
%s
|
||||
)
|
||||
|
||||
%s
|
||||
`
|
||||
@ -1,294 +0,0 @@
|
||||
#!/usr/bin/env perl
|
||||
# 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.
|
||||
|
||||
# This program reads a file containing function prototypes
|
||||
# (like syscall_solaris.go) and generates system call bodies.
|
||||
# The prototypes are marked by lines beginning with "//sys"
|
||||
# and read like func declarations if //sys is replaced by func, but:
|
||||
# * The parameter lists must give a name for each argument.
|
||||
# This includes return parameters.
|
||||
# * The parameter lists must give a type for each argument:
|
||||
# the (x, y, z int) shorthand is not allowed.
|
||||
# * If the return parameter is an error number, it must be named err.
|
||||
# * If go func name needs to be different than its libc name,
|
||||
# * or the function is not in libc, name could be specified
|
||||
# * at the end, after "=" sign, like
|
||||
# //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
|
||||
|
||||
use strict;
|
||||
|
||||
my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV);
|
||||
my $errors = 0;
|
||||
my $_32bit = "";
|
||||
my $tags = ""; # build tags
|
||||
|
||||
binmode STDOUT;
|
||||
|
||||
if($ARGV[0] eq "-b32") {
|
||||
$_32bit = "big-endian";
|
||||
shift;
|
||||
} elsif($ARGV[0] eq "-l32") {
|
||||
$_32bit = "little-endian";
|
||||
shift;
|
||||
}
|
||||
if($ARGV[0] eq "-tags") {
|
||||
shift;
|
||||
$tags = $ARGV[0];
|
||||
shift;
|
||||
}
|
||||
|
||||
if($ARGV[0] =~ /^-/) {
|
||||
print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
|
||||
exit 1;
|
||||
}
|
||||
|
||||
sub parseparamlist($) {
|
||||
my ($list) = @_;
|
||||
$list =~ s/^\s*//;
|
||||
$list =~ s/\s*$//;
|
||||
if($list eq "") {
|
||||
return ();
|
||||
}
|
||||
return split(/\s*,\s*/, $list);
|
||||
}
|
||||
|
||||
sub parseparam($) {
|
||||
my ($p) = @_;
|
||||
if($p !~ /^(\S*) (\S*)$/) {
|
||||
print STDERR "$ARGV:$.: malformed parameter: $p\n";
|
||||
$errors = 1;
|
||||
return ("xx", "int");
|
||||
}
|
||||
return ($1, $2);
|
||||
}
|
||||
|
||||
my $package = "";
|
||||
my $text = "";
|
||||
my $dynimports = "";
|
||||
my $linknames = "";
|
||||
my @vars = ();
|
||||
while(<>) {
|
||||
chomp;
|
||||
s/\s+/ /g;
|
||||
s/^\s+//;
|
||||
s/\s+$//;
|
||||
$package = $1 if !$package && /^package (\S+)$/;
|
||||
my $nonblock = /^\/\/sysnb /;
|
||||
next if !/^\/\/sys / && !$nonblock;
|
||||
|
||||
# Line must be of the form
|
||||
# func Open(path string, mode int, perm int) (fd int, err error)
|
||||
# Split into name, in params, out params.
|
||||
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
|
||||
print STDERR "$ARGV:$.: malformed //sys declaration\n";
|
||||
$errors = 1;
|
||||
next;
|
||||
}
|
||||
my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
|
||||
|
||||
# Split argument lists on comma.
|
||||
my @in = parseparamlist($in);
|
||||
my @out = parseparamlist($out);
|
||||
|
||||
# Try in vain to keep people from editing this file.
|
||||
# The theory is that they jump into the middle of the file
|
||||
# without reading the header.
|
||||
$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
|
||||
|
||||
# So file name.
|
||||
if($modname eq "") {
|
||||
$modname = "libc";
|
||||
}
|
||||
|
||||
# System call name.
|
||||
if($sysname eq "") {
|
||||
$sysname = "$func";
|
||||
}
|
||||
|
||||
# System call pointer variable name.
|
||||
my $sysvarname = "proc$sysname";
|
||||
|
||||
my $strconvfunc = "BytePtrFromString";
|
||||
my $strconvtype = "*byte";
|
||||
|
||||
$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
|
||||
|
||||
# Runtime import of function to allow cross-platform builds.
|
||||
$dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n";
|
||||
# Link symbol to proc address variable.
|
||||
$linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n";
|
||||
# Library proc address variable.
|
||||
push @vars, $sysvarname;
|
||||
|
||||
# Go function header.
|
||||
$out = join(', ', @out);
|
||||
if($out ne "") {
|
||||
$out = " ($out)";
|
||||
}
|
||||
if($text ne "") {
|
||||
$text .= "\n"
|
||||
}
|
||||
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out;
|
||||
|
||||
# Check if err return available
|
||||
my $errvar = "";
|
||||
foreach my $p (@out) {
|
||||
my ($name, $type) = parseparam($p);
|
||||
if($type eq "error") {
|
||||
$errvar = $name;
|
||||
last;
|
||||
}
|
||||
}
|
||||
|
||||
# Prepare arguments to Syscall.
|
||||
my @args = ();
|
||||
my $n = 0;
|
||||
foreach my $p (@in) {
|
||||
my ($name, $type) = parseparam($p);
|
||||
if($type =~ /^\*/) {
|
||||
push @args, "uintptr(unsafe.Pointer($name))";
|
||||
} elsif($type eq "string" && $errvar ne "") {
|
||||
$text .= "\tvar _p$n $strconvtype\n";
|
||||
$text .= "\t_p$n, $errvar = $strconvfunc($name)\n";
|
||||
$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
|
||||
push @args, "uintptr(unsafe.Pointer(_p$n))";
|
||||
$n++;
|
||||
} elsif($type eq "string") {
|
||||
print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
|
||||
$text .= "\tvar _p$n $strconvtype\n";
|
||||
$text .= "\t_p$n, _ = $strconvfunc($name)\n";
|
||||
push @args, "uintptr(unsafe.Pointer(_p$n))";
|
||||
$n++;
|
||||
} elsif($type =~ /^\[\](.*)/) {
|
||||
# Convert slice into pointer, length.
|
||||
# Have to be careful not to take address of &a[0] if len == 0:
|
||||
# pass nil in that case.
|
||||
$text .= "\tvar _p$n *$1\n";
|
||||
$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
|
||||
push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))";
|
||||
$n++;
|
||||
} elsif($type eq "int64" && $_32bit ne "") {
|
||||
if($_32bit eq "big-endian") {
|
||||
push @args, "uintptr($name >> 32)", "uintptr($name)";
|
||||
} else {
|
||||
push @args, "uintptr($name)", "uintptr($name >> 32)";
|
||||
}
|
||||
} elsif($type eq "bool") {
|
||||
$text .= "\tvar _p$n uint32\n";
|
||||
$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
|
||||
push @args, "uintptr(_p$n)";
|
||||
$n++;
|
||||
} else {
|
||||
push @args, "uintptr($name)";
|
||||
}
|
||||
}
|
||||
my $nargs = @args;
|
||||
|
||||
# Determine which form to use; pad args with zeros.
|
||||
my $asm = "sysvicall6";
|
||||
if ($nonblock) {
|
||||
$asm = "rawSysvicall6";
|
||||
}
|
||||
if(@args <= 6) {
|
||||
while(@args < 6) {
|
||||
push @args, "0";
|
||||
}
|
||||
} else {
|
||||
print STDERR "$ARGV:$.: too many arguments to system call\n";
|
||||
}
|
||||
|
||||
# Actual call.
|
||||
my $args = join(', ', @args);
|
||||
my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)";
|
||||
|
||||
# Assign return values.
|
||||
my $body = "";
|
||||
my $failexpr = "";
|
||||
my @ret = ("_", "_", "_");
|
||||
my @pout= ();
|
||||
my $do_errno = 0;
|
||||
for(my $i=0; $i<@out; $i++) {
|
||||
my $p = $out[$i];
|
||||
my ($name, $type) = parseparam($p);
|
||||
my $reg = "";
|
||||
if($name eq "err") {
|
||||
$reg = "e1";
|
||||
$ret[2] = $reg;
|
||||
$do_errno = 1;
|
||||
} else {
|
||||
$reg = sprintf("r%d", $i);
|
||||
$ret[$i] = $reg;
|
||||
}
|
||||
if($type eq "bool") {
|
||||
$reg = "$reg != 0";
|
||||
}
|
||||
if($type eq "int64" && $_32bit ne "") {
|
||||
# 64-bit number in r1:r0 or r0:r1.
|
||||
if($i+2 > @out) {
|
||||
print STDERR "$ARGV:$.: not enough registers for int64 return\n";
|
||||
}
|
||||
if($_32bit eq "big-endian") {
|
||||
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
|
||||
} else {
|
||||
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
|
||||
}
|
||||
$ret[$i] = sprintf("r%d", $i);
|
||||
$ret[$i+1] = sprintf("r%d", $i+1);
|
||||
}
|
||||
if($reg ne "e1") {
|
||||
$body .= "\t$name = $type($reg)\n";
|
||||
}
|
||||
}
|
||||
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
|
||||
$text .= "\t$call\n";
|
||||
} else {
|
||||
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
|
||||
}
|
||||
$text .= $body;
|
||||
|
||||
if ($do_errno) {
|
||||
$text .= "\tif e1 != 0 {\n";
|
||||
$text .= "\t\terr = e1\n";
|
||||
$text .= "\t}\n";
|
||||
}
|
||||
$text .= "\treturn\n";
|
||||
$text .= "}\n";
|
||||
}
|
||||
|
||||
if($errors) {
|
||||
exit 1;
|
||||
}
|
||||
|
||||
print <<EOF;
|
||||
// $cmdline
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build $tags
|
||||
|
||||
package $package
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
EOF
|
||||
|
||||
print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
|
||||
|
||||
my $vardecls = "\t" . join(",\n\t", @vars);
|
||||
$vardecls .= " syscallFunc";
|
||||
|
||||
chomp($_=<<EOF);
|
||||
|
||||
$dynimports
|
||||
$linknames
|
||||
var (
|
||||
$vardecls
|
||||
)
|
||||
|
||||
$text
|
||||
EOF
|
||||
print $_;
|
||||
exit 0;
|
||||
@ -0,0 +1,12 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.4
|
||||
- 1.5
|
||||
- 1.6
|
||||
- 1.7
|
||||
- 1.8
|
||||
- 1.9
|
||||
- tip
|
||||
|
||||
go_import_path: gopkg.in/yaml.v2
|
||||
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
||||
publicly display, publicly perform, sublicense, and distribute the
|
||||
Work and such Derivative Works in Source or Object form.
|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
by such Contributor that are necessarily infringed by their
|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
modifications, and in Source or Object form, provided that You
|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
of the following places: within a NOTICE text file distributed
|
||||
as part of the Derivative Works; within the Source form or
|
||||
documentation, if provided along with the Derivative Works; or,
|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "{}"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright {yyyy} {name of copyright owner}
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
@ -0,0 +1,31 @@
|
||||
The following files were ported to Go from C files of libyaml, and thus
|
||||
are still covered by their original copyright and license:
|
||||
|
||||
apic.go
|
||||
emitterc.go
|
||||
parserc.go
|
||||
readerc.go
|
||||
scannerc.go
|
||||
writerc.go
|
||||
yamlh.go
|
||||
yamlprivateh.go
|
||||
|
||||
Copyright (c) 2006 Kirill Simonov
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@ -0,0 +1,13 @@
|
||||
Copyright 2011-2016 Canonical Ltd.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
@ -0,0 +1,133 @@
|
||||
# YAML support for the Go language
|
||||
|
||||
Introduction
|
||||
------------
|
||||
|
||||
The yaml package enables Go programs to comfortably encode and decode YAML
|
||||
values. It was developed within [Canonical](https://www.canonical.com) as
|
||||
part of the [juju](https://juju.ubuntu.com) project, and is based on a
|
||||
pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
|
||||
C library to parse and generate YAML data quickly and reliably.
|
||||
|
||||
Compatibility
|
||||
-------------
|
||||
|
||||
The yaml package supports most of YAML 1.1 and 1.2, including support for
|
||||
anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
|
||||
implemented, and base-60 floats from YAML 1.1 are purposefully not
|
||||
supported since they're a poor design and are gone in YAML 1.2.
|
||||
|
||||
Installation and usage
|
||||
----------------------
|
||||
|
||||
The import path for the package is *gopkg.in/yaml.v2*.
|
||||
|
||||
To install it, run:
|
||||
|
||||
go get gopkg.in/yaml.v2
|
||||
|
||||
API documentation
|
||||
-----------------
|
||||
|
||||
If opened in a browser, the import path itself leads to the API documentation:
|
||||
|
||||
* [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
|
||||
|
||||
API stability
|
||||
-------------
|
||||
|
||||
The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
|
||||
|
||||
|
||||
License
|
||||
-------
|
||||
|
||||
The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
|
||||
|
||||
|
||||
Example
|
||||
-------
|
||||
|
||||
```Go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
|
||||
"gopkg.in/yaml.v2"
|
||||
)
|
||||
|
||||
var data = `
|
||||
a: Easy!
|
||||
b:
|
||||
c: 2
|
||||
d: [3, 4]
|
||||
`
|
||||
|
||||
// Note: struct fields must be public in order for unmarshal to
|
||||
// correctly populate the data.
|
||||
type T struct {
|
||||
A string
|
||||
B struct {
|
||||
RenamedC int `yaml:"c"`
|
||||
D []int `yaml:",flow"`
|
||||
}
|
||||
}
|
||||
|
||||
func main() {
|
||||
t := T{}
|
||||
|
||||
err := yaml.Unmarshal([]byte(data), &t)
|
||||
if err != nil {
|
||||
log.Fatalf("error: %v", err)
|
||||
}
|
||||
fmt.Printf("--- t:\n%v\n\n", t)
|
||||
|
||||
d, err := yaml.Marshal(&t)
|
||||
if err != nil {
|
||||
log.Fatalf("error: %v", err)
|
||||
}
|
||||
fmt.Printf("--- t dump:\n%s\n\n", string(d))
|
||||
|
||||
m := make(map[interface{}]interface{})
|
||||
|
||||
err = yaml.Unmarshal([]byte(data), &m)
|
||||
if err != nil {
|
||||
log.Fatalf("error: %v", err)
|
||||
}
|
||||
fmt.Printf("--- m:\n%v\n\n", m)
|
||||
|
||||
d, err = yaml.Marshal(&m)
|
||||
if err != nil {
|
||||
log.Fatalf("error: %v", err)
|
||||
}
|
||||
fmt.Printf("--- m dump:\n%s\n\n", string(d))
|
||||
}
|
||||
```
|
||||
|
||||
This example will generate the following output:
|
||||
|
||||
```
|
||||
--- t:
|
||||
{Easy! {2 [3 4]}}
|
||||
|
||||
--- t dump:
|
||||
a: Easy!
|
||||
b:
|
||||
c: 2
|
||||
d: [3, 4]
|
||||
|
||||
|
||||
--- m:
|
||||
map[a:Easy! b:map[c:2 d:[3 4]]]
|
||||
|
||||
--- m dump:
|
||||
a: Easy!
|
||||
b:
|
||||
c: 2
|
||||
d:
|
||||
- 3
|
||||
- 4
|
||||
```
|
||||
|
||||
@ -0,0 +1,739 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
|
||||
//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
|
||||
|
||||
// Check if we can move the queue at the beginning of the buffer.
|
||||
if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
|
||||
if parser.tokens_head != len(parser.tokens) {
|
||||
copy(parser.tokens, parser.tokens[parser.tokens_head:])
|
||||
}
|
||||
parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
|
||||
parser.tokens_head = 0
|
||||
}
|
||||
parser.tokens = append(parser.tokens, *token)
|
||||
if pos < 0 {
|
||||
return
|
||||
}
|
||||
copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
|
||||
parser.tokens[parser.tokens_head+pos] = *token
|
||||
}
|
||||
|
||||
// Create a new parser object.
|
||||
func yaml_parser_initialize(parser *yaml_parser_t) bool {
|
||||
*parser = yaml_parser_t{
|
||||
raw_buffer: make([]byte, 0, input_raw_buffer_size),
|
||||
buffer: make([]byte, 0, input_buffer_size),
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Destroy a parser object.
|
||||
func yaml_parser_delete(parser *yaml_parser_t) {
|
||||
*parser = yaml_parser_t{}
|
||||
}
|
||||
|
||||
// String read handler.
|
||||
func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
|
||||
if parser.input_pos == len(parser.input) {
|
||||
return 0, io.EOF
|
||||
}
|
||||
n = copy(buffer, parser.input[parser.input_pos:])
|
||||
parser.input_pos += n
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// Reader read handler.
|
||||
func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
|
||||
return parser.input_reader.Read(buffer)
|
||||
}
|
||||
|
||||
// Set a string input.
|
||||
func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
|
||||
if parser.read_handler != nil {
|
||||
panic("must set the input source only once")
|
||||
}
|
||||
parser.read_handler = yaml_string_read_handler
|
||||
parser.input = input
|
||||
parser.input_pos = 0
|
||||
}
|
||||
|
||||
// Set a file input.
|
||||
func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
|
||||
if parser.read_handler != nil {
|
||||
panic("must set the input source only once")
|
||||
}
|
||||
parser.read_handler = yaml_reader_read_handler
|
||||
parser.input_reader = r
|
||||
}
|
||||
|
||||
// Set the source encoding.
|
||||
func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
|
||||
if parser.encoding != yaml_ANY_ENCODING {
|
||||
panic("must set the encoding only once")
|
||||
}
|
||||
parser.encoding = encoding
|
||||
}
|
||||
|
||||
// Create a new emitter object.
|
||||
func yaml_emitter_initialize(emitter *yaml_emitter_t) {
|
||||
*emitter = yaml_emitter_t{
|
||||
buffer: make([]byte, output_buffer_size),
|
||||
raw_buffer: make([]byte, 0, output_raw_buffer_size),
|
||||
states: make([]yaml_emitter_state_t, 0, initial_stack_size),
|
||||
events: make([]yaml_event_t, 0, initial_queue_size),
|
||||
}
|
||||
}
|
||||
|
||||
// Destroy an emitter object.
|
||||
func yaml_emitter_delete(emitter *yaml_emitter_t) {
|
||||
*emitter = yaml_emitter_t{}
|
||||
}
|
||||
|
||||
// String write handler.
|
||||
func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
|
||||
*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
|
||||
return nil
|
||||
}
|
||||
|
||||
// yaml_writer_write_handler uses emitter.output_writer to write the
|
||||
// emitted text.
|
||||
func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
|
||||
_, err := emitter.output_writer.Write(buffer)
|
||||
return err
|
||||
}
|
||||
|
||||
// Set a string output.
|
||||
func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
|
||||
if emitter.write_handler != nil {
|
||||
panic("must set the output target only once")
|
||||
}
|
||||
emitter.write_handler = yaml_string_write_handler
|
||||
emitter.output_buffer = output_buffer
|
||||
}
|
||||
|
||||
// Set a file output.
|
||||
func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
|
||||
if emitter.write_handler != nil {
|
||||
panic("must set the output target only once")
|
||||
}
|
||||
emitter.write_handler = yaml_writer_write_handler
|
||||
emitter.output_writer = w
|
||||
}
|
||||
|
||||
// Set the output encoding.
|
||||
func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
|
||||
if emitter.encoding != yaml_ANY_ENCODING {
|
||||
panic("must set the output encoding only once")
|
||||
}
|
||||
emitter.encoding = encoding
|
||||
}
|
||||
|
||||
// Set the canonical output style.
|
||||
func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
|
||||
emitter.canonical = canonical
|
||||
}
|
||||
|
||||
//// Set the indentation increment.
|
||||
func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
|
||||
if indent < 2 || indent > 9 {
|
||||
indent = 2
|
||||
}
|
||||
emitter.best_indent = indent
|
||||
}
|
||||
|
||||
// Set the preferred line width.
|
||||
func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
|
||||
if width < 0 {
|
||||
width = -1
|
||||
}
|
||||
emitter.best_width = width
|
||||
}
|
||||
|
||||
// Set if unescaped non-ASCII characters are allowed.
|
||||
func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
|
||||
emitter.unicode = unicode
|
||||
}
|
||||
|
||||
// Set the preferred line break character.
|
||||
func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
|
||||
emitter.line_break = line_break
|
||||
}
|
||||
|
||||
///*
|
||||
// * Destroy a token object.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(void)
|
||||
//yaml_token_delete(yaml_token_t *token)
|
||||
//{
|
||||
// assert(token); // Non-NULL token object expected.
|
||||
//
|
||||
// switch (token.type)
|
||||
// {
|
||||
// case YAML_TAG_DIRECTIVE_TOKEN:
|
||||
// yaml_free(token.data.tag_directive.handle);
|
||||
// yaml_free(token.data.tag_directive.prefix);
|
||||
// break;
|
||||
//
|
||||
// case YAML_ALIAS_TOKEN:
|
||||
// yaml_free(token.data.alias.value);
|
||||
// break;
|
||||
//
|
||||
// case YAML_ANCHOR_TOKEN:
|
||||
// yaml_free(token.data.anchor.value);
|
||||
// break;
|
||||
//
|
||||
// case YAML_TAG_TOKEN:
|
||||
// yaml_free(token.data.tag.handle);
|
||||
// yaml_free(token.data.tag.suffix);
|
||||
// break;
|
||||
//
|
||||
// case YAML_SCALAR_TOKEN:
|
||||
// yaml_free(token.data.scalar.value);
|
||||
// break;
|
||||
//
|
||||
// default:
|
||||
// break;
|
||||
// }
|
||||
//
|
||||
// memset(token, 0, sizeof(yaml_token_t));
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Check if a string is a valid UTF-8 sequence.
|
||||
// *
|
||||
// * Check 'reader.c' for more details on UTF-8 encoding.
|
||||
// */
|
||||
//
|
||||
//static int
|
||||
//yaml_check_utf8(yaml_char_t *start, size_t length)
|
||||
//{
|
||||
// yaml_char_t *end = start+length;
|
||||
// yaml_char_t *pointer = start;
|
||||
//
|
||||
// while (pointer < end) {
|
||||
// unsigned char octet;
|
||||
// unsigned int width;
|
||||
// unsigned int value;
|
||||
// size_t k;
|
||||
//
|
||||
// octet = pointer[0];
|
||||
// width = (octet & 0x80) == 0x00 ? 1 :
|
||||
// (octet & 0xE0) == 0xC0 ? 2 :
|
||||
// (octet & 0xF0) == 0xE0 ? 3 :
|
||||
// (octet & 0xF8) == 0xF0 ? 4 : 0;
|
||||
// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
|
||||
// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
|
||||
// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
|
||||
// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
|
||||
// if (!width) return 0;
|
||||
// if (pointer+width > end) return 0;
|
||||
// for (k = 1; k < width; k ++) {
|
||||
// octet = pointer[k];
|
||||
// if ((octet & 0xC0) != 0x80) return 0;
|
||||
// value = (value << 6) + (octet & 0x3F);
|
||||
// }
|
||||
// if (!((width == 1) ||
|
||||
// (width == 2 && value >= 0x80) ||
|
||||
// (width == 3 && value >= 0x800) ||
|
||||
// (width == 4 && value >= 0x10000))) return 0;
|
||||
//
|
||||
// pointer += width;
|
||||
// }
|
||||
//
|
||||
// return 1;
|
||||
//}
|
||||
//
|
||||
|
||||
// Create STREAM-START.
|
||||
func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_STREAM_START_EVENT,
|
||||
encoding: encoding,
|
||||
}
|
||||
}
|
||||
|
||||
// Create STREAM-END.
|
||||
func yaml_stream_end_event_initialize(event *yaml_event_t) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_STREAM_END_EVENT,
|
||||
}
|
||||
}
|
||||
|
||||
// Create DOCUMENT-START.
|
||||
func yaml_document_start_event_initialize(
|
||||
event *yaml_event_t,
|
||||
version_directive *yaml_version_directive_t,
|
||||
tag_directives []yaml_tag_directive_t,
|
||||
implicit bool,
|
||||
) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_DOCUMENT_START_EVENT,
|
||||
version_directive: version_directive,
|
||||
tag_directives: tag_directives,
|
||||
implicit: implicit,
|
||||
}
|
||||
}
|
||||
|
||||
// Create DOCUMENT-END.
|
||||
func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_DOCUMENT_END_EVENT,
|
||||
implicit: implicit,
|
||||
}
|
||||
}
|
||||
|
||||
///*
|
||||
// * Create ALIAS.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
|
||||
//{
|
||||
// mark yaml_mark_t = { 0, 0, 0 }
|
||||
// anchor_copy *yaml_char_t = NULL
|
||||
//
|
||||
// assert(event) // Non-NULL event object is expected.
|
||||
// assert(anchor) // Non-NULL anchor is expected.
|
||||
//
|
||||
// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
|
||||
//
|
||||
// anchor_copy = yaml_strdup(anchor)
|
||||
// if (!anchor_copy)
|
||||
// return 0
|
||||
//
|
||||
// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
|
||||
//
|
||||
// return 1
|
||||
//}
|
||||
|
||||
// Create SCALAR.
|
||||
func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_SCALAR_EVENT,
|
||||
anchor: anchor,
|
||||
tag: tag,
|
||||
value: value,
|
||||
implicit: plain_implicit,
|
||||
quoted_implicit: quoted_implicit,
|
||||
style: yaml_style_t(style),
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Create SEQUENCE-START.
|
||||
func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_SEQUENCE_START_EVENT,
|
||||
anchor: anchor,
|
||||
tag: tag,
|
||||
implicit: implicit,
|
||||
style: yaml_style_t(style),
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Create SEQUENCE-END.
|
||||
func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_SEQUENCE_END_EVENT,
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Create MAPPING-START.
|
||||
func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_MAPPING_START_EVENT,
|
||||
anchor: anchor,
|
||||
tag: tag,
|
||||
implicit: implicit,
|
||||
style: yaml_style_t(style),
|
||||
}
|
||||
}
|
||||
|
||||
// Create MAPPING-END.
|
||||
func yaml_mapping_end_event_initialize(event *yaml_event_t) {
|
||||
*event = yaml_event_t{
|
||||
typ: yaml_MAPPING_END_EVENT,
|
||||
}
|
||||
}
|
||||
|
||||
// Destroy an event object.
|
||||
func yaml_event_delete(event *yaml_event_t) {
|
||||
*event = yaml_event_t{}
|
||||
}
|
||||
|
||||
///*
|
||||
// * Create a document object.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_initialize(document *yaml_document_t,
|
||||
// version_directive *yaml_version_directive_t,
|
||||
// tag_directives_start *yaml_tag_directive_t,
|
||||
// tag_directives_end *yaml_tag_directive_t,
|
||||
// start_implicit int, end_implicit int)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
// struct {
|
||||
// start *yaml_node_t
|
||||
// end *yaml_node_t
|
||||
// top *yaml_node_t
|
||||
// } nodes = { NULL, NULL, NULL }
|
||||
// version_directive_copy *yaml_version_directive_t = NULL
|
||||
// struct {
|
||||
// start *yaml_tag_directive_t
|
||||
// end *yaml_tag_directive_t
|
||||
// top *yaml_tag_directive_t
|
||||
// } tag_directives_copy = { NULL, NULL, NULL }
|
||||
// value yaml_tag_directive_t = { NULL, NULL }
|
||||
// mark yaml_mark_t = { 0, 0, 0 }
|
||||
//
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
// assert((tag_directives_start && tag_directives_end) ||
|
||||
// (tag_directives_start == tag_directives_end))
|
||||
// // Valid tag directives are expected.
|
||||
//
|
||||
// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
|
||||
//
|
||||
// if (version_directive) {
|
||||
// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
|
||||
// if (!version_directive_copy) goto error
|
||||
// version_directive_copy.major = version_directive.major
|
||||
// version_directive_copy.minor = version_directive.minor
|
||||
// }
|
||||
//
|
||||
// if (tag_directives_start != tag_directives_end) {
|
||||
// tag_directive *yaml_tag_directive_t
|
||||
// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
|
||||
// goto error
|
||||
// for (tag_directive = tag_directives_start
|
||||
// tag_directive != tag_directives_end; tag_directive ++) {
|
||||
// assert(tag_directive.handle)
|
||||
// assert(tag_directive.prefix)
|
||||
// if (!yaml_check_utf8(tag_directive.handle,
|
||||
// strlen((char *)tag_directive.handle)))
|
||||
// goto error
|
||||
// if (!yaml_check_utf8(tag_directive.prefix,
|
||||
// strlen((char *)tag_directive.prefix)))
|
||||
// goto error
|
||||
// value.handle = yaml_strdup(tag_directive.handle)
|
||||
// value.prefix = yaml_strdup(tag_directive.prefix)
|
||||
// if (!value.handle || !value.prefix) goto error
|
||||
// if (!PUSH(&context, tag_directives_copy, value))
|
||||
// goto error
|
||||
// value.handle = NULL
|
||||
// value.prefix = NULL
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
|
||||
// tag_directives_copy.start, tag_directives_copy.top,
|
||||
// start_implicit, end_implicit, mark, mark)
|
||||
//
|
||||
// return 1
|
||||
//
|
||||
//error:
|
||||
// STACK_DEL(&context, nodes)
|
||||
// yaml_free(version_directive_copy)
|
||||
// while (!STACK_EMPTY(&context, tag_directives_copy)) {
|
||||
// value yaml_tag_directive_t = POP(&context, tag_directives_copy)
|
||||
// yaml_free(value.handle)
|
||||
// yaml_free(value.prefix)
|
||||
// }
|
||||
// STACK_DEL(&context, tag_directives_copy)
|
||||
// yaml_free(value.handle)
|
||||
// yaml_free(value.prefix)
|
||||
//
|
||||
// return 0
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Destroy a document object.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(void)
|
||||
//yaml_document_delete(document *yaml_document_t)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
// tag_directive *yaml_tag_directive_t
|
||||
//
|
||||
// context.error = YAML_NO_ERROR // Eliminate a compiler warning.
|
||||
//
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
//
|
||||
// while (!STACK_EMPTY(&context, document.nodes)) {
|
||||
// node yaml_node_t = POP(&context, document.nodes)
|
||||
// yaml_free(node.tag)
|
||||
// switch (node.type) {
|
||||
// case YAML_SCALAR_NODE:
|
||||
// yaml_free(node.data.scalar.value)
|
||||
// break
|
||||
// case YAML_SEQUENCE_NODE:
|
||||
// STACK_DEL(&context, node.data.sequence.items)
|
||||
// break
|
||||
// case YAML_MAPPING_NODE:
|
||||
// STACK_DEL(&context, node.data.mapping.pairs)
|
||||
// break
|
||||
// default:
|
||||
// assert(0) // Should not happen.
|
||||
// }
|
||||
// }
|
||||
// STACK_DEL(&context, document.nodes)
|
||||
//
|
||||
// yaml_free(document.version_directive)
|
||||
// for (tag_directive = document.tag_directives.start
|
||||
// tag_directive != document.tag_directives.end
|
||||
// tag_directive++) {
|
||||
// yaml_free(tag_directive.handle)
|
||||
// yaml_free(tag_directive.prefix)
|
||||
// }
|
||||
// yaml_free(document.tag_directives.start)
|
||||
//
|
||||
// memset(document, 0, sizeof(yaml_document_t))
|
||||
//}
|
||||
//
|
||||
///**
|
||||
// * Get a document node.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(yaml_node_t *)
|
||||
//yaml_document_get_node(document *yaml_document_t, index int)
|
||||
//{
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
//
|
||||
// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
|
||||
// return document.nodes.start + index - 1
|
||||
// }
|
||||
// return NULL
|
||||
//}
|
||||
//
|
||||
///**
|
||||
// * Get the root object.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(yaml_node_t *)
|
||||
//yaml_document_get_root_node(document *yaml_document_t)
|
||||
//{
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
//
|
||||
// if (document.nodes.top != document.nodes.start) {
|
||||
// return document.nodes.start
|
||||
// }
|
||||
// return NULL
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Add a scalar node to a document.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_add_scalar(document *yaml_document_t,
|
||||
// tag *yaml_char_t, value *yaml_char_t, length int,
|
||||
// style yaml_scalar_style_t)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
// mark yaml_mark_t = { 0, 0, 0 }
|
||||
// tag_copy *yaml_char_t = NULL
|
||||
// value_copy *yaml_char_t = NULL
|
||||
// node yaml_node_t
|
||||
//
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
// assert(value) // Non-NULL value is expected.
|
||||
//
|
||||
// if (!tag) {
|
||||
// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
|
||||
// }
|
||||
//
|
||||
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
||||
// tag_copy = yaml_strdup(tag)
|
||||
// if (!tag_copy) goto error
|
||||
//
|
||||
// if (length < 0) {
|
||||
// length = strlen((char *)value)
|
||||
// }
|
||||
//
|
||||
// if (!yaml_check_utf8(value, length)) goto error
|
||||
// value_copy = yaml_malloc(length+1)
|
||||
// if (!value_copy) goto error
|
||||
// memcpy(value_copy, value, length)
|
||||
// value_copy[length] = '\0'
|
||||
//
|
||||
// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
|
||||
// if (!PUSH(&context, document.nodes, node)) goto error
|
||||
//
|
||||
// return document.nodes.top - document.nodes.start
|
||||
//
|
||||
//error:
|
||||
// yaml_free(tag_copy)
|
||||
// yaml_free(value_copy)
|
||||
//
|
||||
// return 0
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Add a sequence node to a document.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_add_sequence(document *yaml_document_t,
|
||||
// tag *yaml_char_t, style yaml_sequence_style_t)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
// mark yaml_mark_t = { 0, 0, 0 }
|
||||
// tag_copy *yaml_char_t = NULL
|
||||
// struct {
|
||||
// start *yaml_node_item_t
|
||||
// end *yaml_node_item_t
|
||||
// top *yaml_node_item_t
|
||||
// } items = { NULL, NULL, NULL }
|
||||
// node yaml_node_t
|
||||
//
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
//
|
||||
// if (!tag) {
|
||||
// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
|
||||
// }
|
||||
//
|
||||
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
||||
// tag_copy = yaml_strdup(tag)
|
||||
// if (!tag_copy) goto error
|
||||
//
|
||||
// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
|
||||
//
|
||||
// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
|
||||
// style, mark, mark)
|
||||
// if (!PUSH(&context, document.nodes, node)) goto error
|
||||
//
|
||||
// return document.nodes.top - document.nodes.start
|
||||
//
|
||||
//error:
|
||||
// STACK_DEL(&context, items)
|
||||
// yaml_free(tag_copy)
|
||||
//
|
||||
// return 0
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Add a mapping node to a document.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_add_mapping(document *yaml_document_t,
|
||||
// tag *yaml_char_t, style yaml_mapping_style_t)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
// mark yaml_mark_t = { 0, 0, 0 }
|
||||
// tag_copy *yaml_char_t = NULL
|
||||
// struct {
|
||||
// start *yaml_node_pair_t
|
||||
// end *yaml_node_pair_t
|
||||
// top *yaml_node_pair_t
|
||||
// } pairs = { NULL, NULL, NULL }
|
||||
// node yaml_node_t
|
||||
//
|
||||
// assert(document) // Non-NULL document object is expected.
|
||||
//
|
||||
// if (!tag) {
|
||||
// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
|
||||
// }
|
||||
//
|
||||
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
||||
// tag_copy = yaml_strdup(tag)
|
||||
// if (!tag_copy) goto error
|
||||
//
|
||||
// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
|
||||
//
|
||||
// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
|
||||
// style, mark, mark)
|
||||
// if (!PUSH(&context, document.nodes, node)) goto error
|
||||
//
|
||||
// return document.nodes.top - document.nodes.start
|
||||
//
|
||||
//error:
|
||||
// STACK_DEL(&context, pairs)
|
||||
// yaml_free(tag_copy)
|
||||
//
|
||||
// return 0
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Append an item to a sequence node.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_append_sequence_item(document *yaml_document_t,
|
||||
// sequence int, item int)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
//
|
||||
// assert(document) // Non-NULL document is required.
|
||||
// assert(sequence > 0
|
||||
// && document.nodes.start + sequence <= document.nodes.top)
|
||||
// // Valid sequence id is required.
|
||||
// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
|
||||
// // A sequence node is required.
|
||||
// assert(item > 0 && document.nodes.start + item <= document.nodes.top)
|
||||
// // Valid item id is required.
|
||||
//
|
||||
// if (!PUSH(&context,
|
||||
// document.nodes.start[sequence-1].data.sequence.items, item))
|
||||
// return 0
|
||||
//
|
||||
// return 1
|
||||
//}
|
||||
//
|
||||
///*
|
||||
// * Append a pair of a key and a value to a mapping node.
|
||||
// */
|
||||
//
|
||||
//YAML_DECLARE(int)
|
||||
//yaml_document_append_mapping_pair(document *yaml_document_t,
|
||||
// mapping int, key int, value int)
|
||||
//{
|
||||
// struct {
|
||||
// error yaml_error_type_t
|
||||
// } context
|
||||
//
|
||||
// pair yaml_node_pair_t
|
||||
//
|
||||
// assert(document) // Non-NULL document is required.
|
||||
// assert(mapping > 0
|
||||
// && document.nodes.start + mapping <= document.nodes.top)
|
||||
// // Valid mapping id is required.
|
||||
// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
|
||||
// // A mapping node is required.
|
||||
// assert(key > 0 && document.nodes.start + key <= document.nodes.top)
|
||||
// // Valid key id is required.
|
||||
// assert(value > 0 && document.nodes.start + value <= document.nodes.top)
|
||||
// // Valid value id is required.
|
||||
//
|
||||
// pair.key = key
|
||||
// pair.value = value
|
||||
//
|
||||
// if (!PUSH(&context,
|
||||
// document.nodes.start[mapping-1].data.mapping.pairs, pair))
|
||||
// return 0
|
||||
//
|
||||
// return 1
|
||||
//}
|
||||
//
|
||||
//
|
||||
@ -0,0 +1,775 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"encoding"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
documentNode = 1 << iota
|
||||
mappingNode
|
||||
sequenceNode
|
||||
scalarNode
|
||||
aliasNode
|
||||
)
|
||||
|
||||
type node struct {
|
||||
kind int
|
||||
line, column int
|
||||
tag string
|
||||
// For an alias node, alias holds the resolved alias.
|
||||
alias *node
|
||||
value string
|
||||
implicit bool
|
||||
children []*node
|
||||
anchors map[string]*node
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Parser, produces a node tree out of a libyaml event stream.
|
||||
|
||||
type parser struct {
|
||||
parser yaml_parser_t
|
||||
event yaml_event_t
|
||||
doc *node
|
||||
doneInit bool
|
||||
}
|
||||
|
||||
func newParser(b []byte) *parser {
|
||||
p := parser{}
|
||||
if !yaml_parser_initialize(&p.parser) {
|
||||
panic("failed to initialize YAML emitter")
|
||||
}
|
||||
if len(b) == 0 {
|
||||
b = []byte{'\n'}
|
||||
}
|
||||
yaml_parser_set_input_string(&p.parser, b)
|
||||
return &p
|
||||
}
|
||||
|
||||
func newParserFromReader(r io.Reader) *parser {
|
||||
p := parser{}
|
||||
if !yaml_parser_initialize(&p.parser) {
|
||||
panic("failed to initialize YAML emitter")
|
||||
}
|
||||
yaml_parser_set_input_reader(&p.parser, r)
|
||||
return &p
|
||||
}
|
||||
|
||||
func (p *parser) init() {
|
||||
if p.doneInit {
|
||||
return
|
||||
}
|
||||
p.expect(yaml_STREAM_START_EVENT)
|
||||
p.doneInit = true
|
||||
}
|
||||
|
||||
func (p *parser) destroy() {
|
||||
if p.event.typ != yaml_NO_EVENT {
|
||||
yaml_event_delete(&p.event)
|
||||
}
|
||||
yaml_parser_delete(&p.parser)
|
||||
}
|
||||
|
||||
// expect consumes an event from the event stream and
|
||||
// checks that it's of the expected type.
|
||||
func (p *parser) expect(e yaml_event_type_t) {
|
||||
if p.event.typ == yaml_NO_EVENT {
|
||||
if !yaml_parser_parse(&p.parser, &p.event) {
|
||||
p.fail()
|
||||
}
|
||||
}
|
||||
if p.event.typ == yaml_STREAM_END_EVENT {
|
||||
failf("attempted to go past the end of stream; corrupted value?")
|
||||
}
|
||||
if p.event.typ != e {
|
||||
p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ)
|
||||
p.fail()
|
||||
}
|
||||
yaml_event_delete(&p.event)
|
||||
p.event.typ = yaml_NO_EVENT
|
||||
}
|
||||
|
||||
// peek peeks at the next event in the event stream,
|
||||
// puts the results into p.event and returns the event type.
|
||||
func (p *parser) peek() yaml_event_type_t {
|
||||
if p.event.typ != yaml_NO_EVENT {
|
||||
return p.event.typ
|
||||
}
|
||||
if !yaml_parser_parse(&p.parser, &p.event) {
|
||||
p.fail()
|
||||
}
|
||||
return p.event.typ
|
||||
}
|
||||
|
||||
func (p *parser) fail() {
|
||||
var where string
|
||||
var line int
|
||||
if p.parser.problem_mark.line != 0 {
|
||||
line = p.parser.problem_mark.line
|
||||
// Scanner errors don't iterate line before returning error
|
||||
if p.parser.error == yaml_SCANNER_ERROR {
|
||||
line++
|
||||
}
|
||||
} else if p.parser.context_mark.line != 0 {
|
||||
line = p.parser.context_mark.line
|
||||
}
|
||||
if line != 0 {
|
||||
where = "line " + strconv.Itoa(line) + ": "
|
||||
}
|
||||
var msg string
|
||||
if len(p.parser.problem) > 0 {
|
||||
msg = p.parser.problem
|
||||
} else {
|
||||
msg = "unknown problem parsing YAML content"
|
||||
}
|
||||
failf("%s%s", where, msg)
|
||||
}
|
||||
|
||||
func (p *parser) anchor(n *node, anchor []byte) {
|
||||
if anchor != nil {
|
||||
p.doc.anchors[string(anchor)] = n
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) parse() *node {
|
||||
p.init()
|
||||
switch p.peek() {
|
||||
case yaml_SCALAR_EVENT:
|
||||
return p.scalar()
|
||||
case yaml_ALIAS_EVENT:
|
||||
return p.alias()
|
||||
case yaml_MAPPING_START_EVENT:
|
||||
return p.mapping()
|
||||
case yaml_SEQUENCE_START_EVENT:
|
||||
return p.sequence()
|
||||
case yaml_DOCUMENT_START_EVENT:
|
||||
return p.document()
|
||||
case yaml_STREAM_END_EVENT:
|
||||
// Happens when attempting to decode an empty buffer.
|
||||
return nil
|
||||
default:
|
||||
panic("attempted to parse unknown event: " + p.event.typ.String())
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) node(kind int) *node {
|
||||
return &node{
|
||||
kind: kind,
|
||||
line: p.event.start_mark.line,
|
||||
column: p.event.start_mark.column,
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) document() *node {
|
||||
n := p.node(documentNode)
|
||||
n.anchors = make(map[string]*node)
|
||||
p.doc = n
|
||||
p.expect(yaml_DOCUMENT_START_EVENT)
|
||||
n.children = append(n.children, p.parse())
|
||||
p.expect(yaml_DOCUMENT_END_EVENT)
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *parser) alias() *node {
|
||||
n := p.node(aliasNode)
|
||||
n.value = string(p.event.anchor)
|
||||
n.alias = p.doc.anchors[n.value]
|
||||
if n.alias == nil {
|
||||
failf("unknown anchor '%s' referenced", n.value)
|
||||
}
|
||||
p.expect(yaml_ALIAS_EVENT)
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *parser) scalar() *node {
|
||||
n := p.node(scalarNode)
|
||||
n.value = string(p.event.value)
|
||||
n.tag = string(p.event.tag)
|
||||
n.implicit = p.event.implicit
|
||||
p.anchor(n, p.event.anchor)
|
||||
p.expect(yaml_SCALAR_EVENT)
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *parser) sequence() *node {
|
||||
n := p.node(sequenceNode)
|
||||
p.anchor(n, p.event.anchor)
|
||||
p.expect(yaml_SEQUENCE_START_EVENT)
|
||||
for p.peek() != yaml_SEQUENCE_END_EVENT {
|
||||
n.children = append(n.children, p.parse())
|
||||
}
|
||||
p.expect(yaml_SEQUENCE_END_EVENT)
|
||||
return n
|
||||
}
|
||||
|
||||
func (p *parser) mapping() *node {
|
||||
n := p.node(mappingNode)
|
||||
p.anchor(n, p.event.anchor)
|
||||
p.expect(yaml_MAPPING_START_EVENT)
|
||||
for p.peek() != yaml_MAPPING_END_EVENT {
|
||||
n.children = append(n.children, p.parse(), p.parse())
|
||||
}
|
||||
p.expect(yaml_MAPPING_END_EVENT)
|
||||
return n
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Decoder, unmarshals a node into a provided value.
|
||||
|
||||
type decoder struct {
|
||||
doc *node
|
||||
aliases map[*node]bool
|
||||
mapType reflect.Type
|
||||
terrors []string
|
||||
strict bool
|
||||
}
|
||||
|
||||
var (
|
||||
mapItemType = reflect.TypeOf(MapItem{})
|
||||
durationType = reflect.TypeOf(time.Duration(0))
|
||||
defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
|
||||
ifaceType = defaultMapType.Elem()
|
||||
timeType = reflect.TypeOf(time.Time{})
|
||||
ptrTimeType = reflect.TypeOf(&time.Time{})
|
||||
)
|
||||
|
||||
func newDecoder(strict bool) *decoder {
|
||||
d := &decoder{mapType: defaultMapType, strict: strict}
|
||||
d.aliases = make(map[*node]bool)
|
||||
return d
|
||||
}
|
||||
|
||||
func (d *decoder) terror(n *node, tag string, out reflect.Value) {
|
||||
if n.tag != "" {
|
||||
tag = n.tag
|
||||
}
|
||||
value := n.value
|
||||
if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
|
||||
if len(value) > 10 {
|
||||
value = " `" + value[:7] + "...`"
|
||||
} else {
|
||||
value = " `" + value + "`"
|
||||
}
|
||||
}
|
||||
d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
|
||||
}
|
||||
|
||||
func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
|
||||
terrlen := len(d.terrors)
|
||||
err := u.UnmarshalYAML(func(v interface{}) (err error) {
|
||||
defer handleErr(&err)
|
||||
d.unmarshal(n, reflect.ValueOf(v))
|
||||
if len(d.terrors) > terrlen {
|
||||
issues := d.terrors[terrlen:]
|
||||
d.terrors = d.terrors[:terrlen]
|
||||
return &TypeError{issues}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
if e, ok := err.(*TypeError); ok {
|
||||
d.terrors = append(d.terrors, e.Errors...)
|
||||
return false
|
||||
}
|
||||
if err != nil {
|
||||
fail(err)
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
|
||||
// if a value is found to implement it.
|
||||
// It returns the initialized and dereferenced out value, whether
|
||||
// unmarshalling was already done by UnmarshalYAML, and if so whether
|
||||
// its types unmarshalled appropriately.
|
||||
//
|
||||
// If n holds a null value, prepare returns before doing anything.
|
||||
func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
|
||||
if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) {
|
||||
return out, false, false
|
||||
}
|
||||
again := true
|
||||
for again {
|
||||
again = false
|
||||
if out.Kind() == reflect.Ptr {
|
||||
if out.IsNil() {
|
||||
out.Set(reflect.New(out.Type().Elem()))
|
||||
}
|
||||
out = out.Elem()
|
||||
again = true
|
||||
}
|
||||
if out.CanAddr() {
|
||||
if u, ok := out.Addr().Interface().(Unmarshaler); ok {
|
||||
good = d.callUnmarshaler(n, u)
|
||||
return out, true, good
|
||||
}
|
||||
}
|
||||
}
|
||||
return out, false, false
|
||||
}
|
||||
|
||||
func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
|
||||
switch n.kind {
|
||||
case documentNode:
|
||||
return d.document(n, out)
|
||||
case aliasNode:
|
||||
return d.alias(n, out)
|
||||
}
|
||||
out, unmarshaled, good := d.prepare(n, out)
|
||||
if unmarshaled {
|
||||
return good
|
||||
}
|
||||
switch n.kind {
|
||||
case scalarNode:
|
||||
good = d.scalar(n, out)
|
||||
case mappingNode:
|
||||
good = d.mapping(n, out)
|
||||
case sequenceNode:
|
||||
good = d.sequence(n, out)
|
||||
default:
|
||||
panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
|
||||
}
|
||||
return good
|
||||
}
|
||||
|
||||
func (d *decoder) document(n *node, out reflect.Value) (good bool) {
|
||||
if len(n.children) == 1 {
|
||||
d.doc = n
|
||||
d.unmarshal(n.children[0], out)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
|
||||
if d.aliases[n] {
|
||||
// TODO this could actually be allowed in some circumstances.
|
||||
failf("anchor '%s' value contains itself", n.value)
|
||||
}
|
||||
d.aliases[n] = true
|
||||
good = d.unmarshal(n.alias, out)
|
||||
delete(d.aliases, n)
|
||||
return good
|
||||
}
|
||||
|
||||
var zeroValue reflect.Value
|
||||
|
||||
func resetMap(out reflect.Value) {
|
||||
for _, k := range out.MapKeys() {
|
||||
out.SetMapIndex(k, zeroValue)
|
||||
}
|
||||
}
|
||||
|
||||
func (d *decoder) scalar(n *node, out reflect.Value) bool {
|
||||
var tag string
|
||||
var resolved interface{}
|
||||
if n.tag == "" && !n.implicit {
|
||||
tag = yaml_STR_TAG
|
||||
resolved = n.value
|
||||
} else {
|
||||
tag, resolved = resolve(n.tag, n.value)
|
||||
if tag == yaml_BINARY_TAG {
|
||||
data, err := base64.StdEncoding.DecodeString(resolved.(string))
|
||||
if err != nil {
|
||||
failf("!!binary value contains invalid base64 data")
|
||||
}
|
||||
resolved = string(data)
|
||||
}
|
||||
}
|
||||
if resolved == nil {
|
||||
if out.Kind() == reflect.Map && !out.CanAddr() {
|
||||
resetMap(out)
|
||||
} else {
|
||||
out.Set(reflect.Zero(out.Type()))
|
||||
}
|
||||
return true
|
||||
}
|
||||
if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
|
||||
// We've resolved to exactly the type we want, so use that.
|
||||
out.Set(resolvedv)
|
||||
return true
|
||||
}
|
||||
// Perhaps we can use the value as a TextUnmarshaler to
|
||||
// set its value.
|
||||
if out.CanAddr() {
|
||||
u, ok := out.Addr().Interface().(encoding.TextUnmarshaler)
|
||||
if ok {
|
||||
var text []byte
|
||||
if tag == yaml_BINARY_TAG {
|
||||
text = []byte(resolved.(string))
|
||||
} else {
|
||||
// We let any value be unmarshaled into TextUnmarshaler.
|
||||
// That might be more lax than we'd like, but the
|
||||
// TextUnmarshaler itself should bowl out any dubious values.
|
||||
text = []byte(n.value)
|
||||
}
|
||||
err := u.UnmarshalText(text)
|
||||
if err != nil {
|
||||
fail(err)
|
||||
}
|
||||
return true
|
||||
}
|
||||
}
|
||||
switch out.Kind() {
|
||||
case reflect.String:
|
||||
if tag == yaml_BINARY_TAG {
|
||||
out.SetString(resolved.(string))
|
||||
return true
|
||||
}
|
||||
if resolved != nil {
|
||||
out.SetString(n.value)
|
||||
return true
|
||||
}
|
||||
case reflect.Interface:
|
||||
if resolved == nil {
|
||||
out.Set(reflect.Zero(out.Type()))
|
||||
} else if tag == yaml_TIMESTAMP_TAG {
|
||||
// It looks like a timestamp but for backward compatibility
|
||||
// reasons we set it as a string, so that code that unmarshals
|
||||
// timestamp-like values into interface{} will continue to
|
||||
// see a string and not a time.Time.
|
||||
// TODO(v3) Drop this.
|
||||
out.Set(reflect.ValueOf(n.value))
|
||||
} else {
|
||||
out.Set(reflect.ValueOf(resolved))
|
||||
}
|
||||
return true
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
switch resolved := resolved.(type) {
|
||||
case int:
|
||||
if !out.OverflowInt(int64(resolved)) {
|
||||
out.SetInt(int64(resolved))
|
||||
return true
|
||||
}
|
||||
case int64:
|
||||
if !out.OverflowInt(resolved) {
|
||||
out.SetInt(resolved)
|
||||
return true
|
||||
}
|
||||
case uint64:
|
||||
if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
|
||||
out.SetInt(int64(resolved))
|
||||
return true
|
||||
}
|
||||
case float64:
|
||||
if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
|
||||
out.SetInt(int64(resolved))
|
||||
return true
|
||||
}
|
||||
case string:
|
||||
if out.Type() == durationType {
|
||||
d, err := time.ParseDuration(resolved)
|
||||
if err == nil {
|
||||
out.SetInt(int64(d))
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
switch resolved := resolved.(type) {
|
||||
case int:
|
||||
if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
|
||||
out.SetUint(uint64(resolved))
|
||||
return true
|
||||
}
|
||||
case int64:
|
||||
if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
|
||||
out.SetUint(uint64(resolved))
|
||||
return true
|
||||
}
|
||||
case uint64:
|
||||
if !out.OverflowUint(uint64(resolved)) {
|
||||
out.SetUint(uint64(resolved))
|
||||
return true
|
||||
}
|
||||
case float64:
|
||||
if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
|
||||
out.SetUint(uint64(resolved))
|
||||
return true
|
||||
}
|
||||
}
|
||||
case reflect.Bool:
|
||||
switch resolved := resolved.(type) {
|
||||
case bool:
|
||||
out.SetBool(resolved)
|
||||
return true
|
||||
}
|
||||
case reflect.Float32, reflect.Float64:
|
||||
switch resolved := resolved.(type) {
|
||||
case int:
|
||||
out.SetFloat(float64(resolved))
|
||||
return true
|
||||
case int64:
|
||||
out.SetFloat(float64(resolved))
|
||||
return true
|
||||
case uint64:
|
||||
out.SetFloat(float64(resolved))
|
||||
return true
|
||||
case float64:
|
||||
out.SetFloat(resolved)
|
||||
return true
|
||||
}
|
||||
case reflect.Struct:
|
||||
if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
|
||||
out.Set(resolvedv)
|
||||
return true
|
||||
}
|
||||
case reflect.Ptr:
|
||||
if out.Type().Elem() == reflect.TypeOf(resolved) {
|
||||
// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
|
||||
elem := reflect.New(out.Type().Elem())
|
||||
elem.Elem().Set(reflect.ValueOf(resolved))
|
||||
out.Set(elem)
|
||||
return true
|
||||
}
|
||||
}
|
||||
d.terror(n, tag, out)
|
||||
return false
|
||||
}
|
||||
|
||||
func settableValueOf(i interface{}) reflect.Value {
|
||||
v := reflect.ValueOf(i)
|
||||
sv := reflect.New(v.Type()).Elem()
|
||||
sv.Set(v)
|
||||
return sv
|
||||
}
|
||||
|
||||
func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
|
||||
l := len(n.children)
|
||||
|
||||
var iface reflect.Value
|
||||
switch out.Kind() {
|
||||
case reflect.Slice:
|
||||
out.Set(reflect.MakeSlice(out.Type(), l, l))
|
||||
case reflect.Array:
|
||||
if l != out.Len() {
|
||||
failf("invalid array: want %d elements but got %d", out.Len(), l)
|
||||
}
|
||||
case reflect.Interface:
|
||||
// No type hints. Will have to use a generic sequence.
|
||||
iface = out
|
||||
out = settableValueOf(make([]interface{}, l))
|
||||
default:
|
||||
d.terror(n, yaml_SEQ_TAG, out)
|
||||
return false
|
||||
}
|
||||
et := out.Type().Elem()
|
||||
|
||||
j := 0
|
||||
for i := 0; i < l; i++ {
|
||||
e := reflect.New(et).Elem()
|
||||
if ok := d.unmarshal(n.children[i], e); ok {
|
||||
out.Index(j).Set(e)
|
||||
j++
|
||||
}
|
||||
}
|
||||
if out.Kind() != reflect.Array {
|
||||
out.Set(out.Slice(0, j))
|
||||
}
|
||||
if iface.IsValid() {
|
||||
iface.Set(out)
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
|
||||
switch out.Kind() {
|
||||
case reflect.Struct:
|
||||
return d.mappingStruct(n, out)
|
||||
case reflect.Slice:
|
||||
return d.mappingSlice(n, out)
|
||||
case reflect.Map:
|
||||
// okay
|
||||
case reflect.Interface:
|
||||
if d.mapType.Kind() == reflect.Map {
|
||||
iface := out
|
||||
out = reflect.MakeMap(d.mapType)
|
||||
iface.Set(out)
|
||||
} else {
|
||||
slicev := reflect.New(d.mapType).Elem()
|
||||
if !d.mappingSlice(n, slicev) {
|
||||
return false
|
||||
}
|
||||
out.Set(slicev)
|
||||
return true
|
||||
}
|
||||
default:
|
||||
d.terror(n, yaml_MAP_TAG, out)
|
||||
return false
|
||||
}
|
||||
outt := out.Type()
|
||||
kt := outt.Key()
|
||||
et := outt.Elem()
|
||||
|
||||
mapType := d.mapType
|
||||
if outt.Key() == ifaceType && outt.Elem() == ifaceType {
|
||||
d.mapType = outt
|
||||
}
|
||||
|
||||
if out.IsNil() {
|
||||
out.Set(reflect.MakeMap(outt))
|
||||
}
|
||||
l := len(n.children)
|
||||
for i := 0; i < l; i += 2 {
|
||||
if isMerge(n.children[i]) {
|
||||
d.merge(n.children[i+1], out)
|
||||
continue
|
||||
}
|
||||
k := reflect.New(kt).Elem()
|
||||
if d.unmarshal(n.children[i], k) {
|
||||
kkind := k.Kind()
|
||||
if kkind == reflect.Interface {
|
||||
kkind = k.Elem().Kind()
|
||||
}
|
||||
if kkind == reflect.Map || kkind == reflect.Slice {
|
||||
failf("invalid map key: %#v", k.Interface())
|
||||
}
|
||||
e := reflect.New(et).Elem()
|
||||
if d.unmarshal(n.children[i+1], e) {
|
||||
d.setMapIndex(n.children[i+1], out, k, e)
|
||||
}
|
||||
}
|
||||
}
|
||||
d.mapType = mapType
|
||||
return true
|
||||
}
|
||||
|
||||
func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) {
|
||||
if d.strict && out.MapIndex(k) != zeroValue {
|
||||
d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface()))
|
||||
return
|
||||
}
|
||||
out.SetMapIndex(k, v)
|
||||
}
|
||||
|
||||
func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
|
||||
outt := out.Type()
|
||||
if outt.Elem() != mapItemType {
|
||||
d.terror(n, yaml_MAP_TAG, out)
|
||||
return false
|
||||
}
|
||||
|
||||
mapType := d.mapType
|
||||
d.mapType = outt
|
||||
|
||||
var slice []MapItem
|
||||
var l = len(n.children)
|
||||
for i := 0; i < l; i += 2 {
|
||||
if isMerge(n.children[i]) {
|
||||
d.merge(n.children[i+1], out)
|
||||
continue
|
||||
}
|
||||
item := MapItem{}
|
||||
k := reflect.ValueOf(&item.Key).Elem()
|
||||
if d.unmarshal(n.children[i], k) {
|
||||
v := reflect.ValueOf(&item.Value).Elem()
|
||||
if d.unmarshal(n.children[i+1], v) {
|
||||
slice = append(slice, item)
|
||||
}
|
||||
}
|
||||
}
|
||||
out.Set(reflect.ValueOf(slice))
|
||||
d.mapType = mapType
|
||||
return true
|
||||
}
|
||||
|
||||
func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
|
||||
sinfo, err := getStructInfo(out.Type())
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
name := settableValueOf("")
|
||||
l := len(n.children)
|
||||
|
||||
var inlineMap reflect.Value
|
||||
var elemType reflect.Type
|
||||
if sinfo.InlineMap != -1 {
|
||||
inlineMap = out.Field(sinfo.InlineMap)
|
||||
inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
|
||||
elemType = inlineMap.Type().Elem()
|
||||
}
|
||||
|
||||
var doneFields []bool
|
||||
if d.strict {
|
||||
doneFields = make([]bool, len(sinfo.FieldsList))
|
||||
}
|
||||
for i := 0; i < l; i += 2 {
|
||||
ni := n.children[i]
|
||||
if isMerge(ni) {
|
||||
d.merge(n.children[i+1], out)
|
||||
continue
|
||||
}
|
||||
if !d.unmarshal(ni, name) {
|
||||
continue
|
||||
}
|
||||
if info, ok := sinfo.FieldsMap[name.String()]; ok {
|
||||
if d.strict {
|
||||
if doneFields[info.Id] {
|
||||
d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type()))
|
||||
continue
|
||||
}
|
||||
doneFields[info.Id] = true
|
||||
}
|
||||
var field reflect.Value
|
||||
if info.Inline == nil {
|
||||
field = out.Field(info.Num)
|
||||
} else {
|
||||
field = out.FieldByIndex(info.Inline)
|
||||
}
|
||||
d.unmarshal(n.children[i+1], field)
|
||||
} else if sinfo.InlineMap != -1 {
|
||||
if inlineMap.IsNil() {
|
||||
inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
|
||||
}
|
||||
value := reflect.New(elemType).Elem()
|
||||
d.unmarshal(n.children[i+1], value)
|
||||
d.setMapIndex(n.children[i+1], inlineMap, name, value)
|
||||
} else if d.strict {
|
||||
d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type()))
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func failWantMap() {
|
||||
failf("map merge requires map or sequence of maps as the value")
|
||||
}
|
||||
|
||||
func (d *decoder) merge(n *node, out reflect.Value) {
|
||||
switch n.kind {
|
||||
case mappingNode:
|
||||
d.unmarshal(n, out)
|
||||
case aliasNode:
|
||||
an, ok := d.doc.anchors[n.value]
|
||||
if ok && an.kind != mappingNode {
|
||||
failWantMap()
|
||||
}
|
||||
d.unmarshal(n, out)
|
||||
case sequenceNode:
|
||||
// Step backwards as earlier nodes take precedence.
|
||||
for i := len(n.children) - 1; i >= 0; i-- {
|
||||
ni := n.children[i]
|
||||
if ni.kind == aliasNode {
|
||||
an, ok := d.doc.anchors[ni.value]
|
||||
if ok && an.kind != mappingNode {
|
||||
failWantMap()
|
||||
}
|
||||
} else if ni.kind != mappingNode {
|
||||
failWantMap()
|
||||
}
|
||||
d.unmarshal(ni, out)
|
||||
}
|
||||
default:
|
||||
failWantMap()
|
||||
}
|
||||
}
|
||||
|
||||
func isMerge(n *node) bool {
|
||||
return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,390 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"encoding"
|
||||
"fmt"
|
||||
"io"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// jsonNumber is the interface of the encoding/json.Number datatype.
|
||||
// Repeating the interface here avoids a dependency on encoding/json, and also
|
||||
// supports other libraries like jsoniter, which use a similar datatype with
|
||||
// the same interface. Detecting this interface is useful when dealing with
|
||||
// structures containing json.Number, which is a string under the hood. The
|
||||
// encoder should prefer the use of Int64(), Float64() and string(), in that
|
||||
// order, when encoding this type.
|
||||
type jsonNumber interface {
|
||||
Float64() (float64, error)
|
||||
Int64() (int64, error)
|
||||
String() string
|
||||
}
|
||||
|
||||
type encoder struct {
|
||||
emitter yaml_emitter_t
|
||||
event yaml_event_t
|
||||
out []byte
|
||||
flow bool
|
||||
// doneInit holds whether the initial stream_start_event has been
|
||||
// emitted.
|
||||
doneInit bool
|
||||
}
|
||||
|
||||
func newEncoder() *encoder {
|
||||
e := &encoder{}
|
||||
yaml_emitter_initialize(&e.emitter)
|
||||
yaml_emitter_set_output_string(&e.emitter, &e.out)
|
||||
yaml_emitter_set_unicode(&e.emitter, true)
|
||||
return e
|
||||
}
|
||||
|
||||
func newEncoderWithWriter(w io.Writer) *encoder {
|
||||
e := &encoder{}
|
||||
yaml_emitter_initialize(&e.emitter)
|
||||
yaml_emitter_set_output_writer(&e.emitter, w)
|
||||
yaml_emitter_set_unicode(&e.emitter, true)
|
||||
return e
|
||||
}
|
||||
|
||||
func (e *encoder) init() {
|
||||
if e.doneInit {
|
||||
return
|
||||
}
|
||||
yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
|
||||
e.emit()
|
||||
e.doneInit = true
|
||||
}
|
||||
|
||||
func (e *encoder) finish() {
|
||||
e.emitter.open_ended = false
|
||||
yaml_stream_end_event_initialize(&e.event)
|
||||
e.emit()
|
||||
}
|
||||
|
||||
func (e *encoder) destroy() {
|
||||
yaml_emitter_delete(&e.emitter)
|
||||
}
|
||||
|
||||
func (e *encoder) emit() {
|
||||
// This will internally delete the e.event value.
|
||||
e.must(yaml_emitter_emit(&e.emitter, &e.event))
|
||||
}
|
||||
|
||||
func (e *encoder) must(ok bool) {
|
||||
if !ok {
|
||||
msg := e.emitter.problem
|
||||
if msg == "" {
|
||||
msg = "unknown problem generating YAML content"
|
||||
}
|
||||
failf("%s", msg)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *encoder) marshalDoc(tag string, in reflect.Value) {
|
||||
e.init()
|
||||
yaml_document_start_event_initialize(&e.event, nil, nil, true)
|
||||
e.emit()
|
||||
e.marshal(tag, in)
|
||||
yaml_document_end_event_initialize(&e.event, true)
|
||||
e.emit()
|
||||
}
|
||||
|
||||
func (e *encoder) marshal(tag string, in reflect.Value) {
|
||||
if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
|
||||
e.nilv()
|
||||
return
|
||||
}
|
||||
iface := in.Interface()
|
||||
switch m := iface.(type) {
|
||||
case jsonNumber:
|
||||
integer, err := m.Int64()
|
||||
if err == nil {
|
||||
// In this case the json.Number is a valid int64
|
||||
in = reflect.ValueOf(integer)
|
||||
break
|
||||
}
|
||||
float, err := m.Float64()
|
||||
if err == nil {
|
||||
// In this case the json.Number is a valid float64
|
||||
in = reflect.ValueOf(float)
|
||||
break
|
||||
}
|
||||
// fallback case - no number could be obtained
|
||||
in = reflect.ValueOf(m.String())
|
||||
case time.Time, *time.Time:
|
||||
// Although time.Time implements TextMarshaler,
|
||||
// we don't want to treat it as a string for YAML
|
||||
// purposes because YAML has special support for
|
||||
// timestamps.
|
||||
case Marshaler:
|
||||
v, err := m.MarshalYAML()
|
||||
if err != nil {
|
||||
fail(err)
|
||||
}
|
||||
if v == nil {
|
||||
e.nilv()
|
||||
return
|
||||
}
|
||||
in = reflect.ValueOf(v)
|
||||
case encoding.TextMarshaler:
|
||||
text, err := m.MarshalText()
|
||||
if err != nil {
|
||||
fail(err)
|
||||
}
|
||||
in = reflect.ValueOf(string(text))
|
||||
case nil:
|
||||
e.nilv()
|
||||
return
|
||||
}
|
||||
switch in.Kind() {
|
||||
case reflect.Interface:
|
||||
e.marshal(tag, in.Elem())
|
||||
case reflect.Map:
|
||||
e.mapv(tag, in)
|
||||
case reflect.Ptr:
|
||||
if in.Type() == ptrTimeType {
|
||||
e.timev(tag, in.Elem())
|
||||
} else {
|
||||
e.marshal(tag, in.Elem())
|
||||
}
|
||||
case reflect.Struct:
|
||||
if in.Type() == timeType {
|
||||
e.timev(tag, in)
|
||||
} else {
|
||||
e.structv(tag, in)
|
||||
}
|
||||
case reflect.Slice, reflect.Array:
|
||||
if in.Type().Elem() == mapItemType {
|
||||
e.itemsv(tag, in)
|
||||
} else {
|
||||
e.slicev(tag, in)
|
||||
}
|
||||
case reflect.String:
|
||||
e.stringv(tag, in)
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
if in.Type() == durationType {
|
||||
e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
|
||||
} else {
|
||||
e.intv(tag, in)
|
||||
}
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
e.uintv(tag, in)
|
||||
case reflect.Float32, reflect.Float64:
|
||||
e.floatv(tag, in)
|
||||
case reflect.Bool:
|
||||
e.boolv(tag, in)
|
||||
default:
|
||||
panic("cannot marshal type: " + in.Type().String())
|
||||
}
|
||||
}
|
||||
|
||||
func (e *encoder) mapv(tag string, in reflect.Value) {
|
||||
e.mappingv(tag, func() {
|
||||
keys := keyList(in.MapKeys())
|
||||
sort.Sort(keys)
|
||||
for _, k := range keys {
|
||||
e.marshal("", k)
|
||||
e.marshal("", in.MapIndex(k))
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func (e *encoder) itemsv(tag string, in reflect.Value) {
|
||||
e.mappingv(tag, func() {
|
||||
slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
|
||||
for _, item := range slice {
|
||||
e.marshal("", reflect.ValueOf(item.Key))
|
||||
e.marshal("", reflect.ValueOf(item.Value))
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func (e *encoder) structv(tag string, in reflect.Value) {
|
||||
sinfo, err := getStructInfo(in.Type())
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
e.mappingv(tag, func() {
|
||||
for _, info := range sinfo.FieldsList {
|
||||
var value reflect.Value
|
||||
if info.Inline == nil {
|
||||
value = in.Field(info.Num)
|
||||
} else {
|
||||
value = in.FieldByIndex(info.Inline)
|
||||
}
|
||||
if info.OmitEmpty && isZero(value) {
|
||||
continue
|
||||
}
|
||||
e.marshal("", reflect.ValueOf(info.Key))
|
||||
e.flow = info.Flow
|
||||
e.marshal("", value)
|
||||
}
|
||||
if sinfo.InlineMap >= 0 {
|
||||
m := in.Field(sinfo.InlineMap)
|
||||
if m.Len() > 0 {
|
||||
e.flow = false
|
||||
keys := keyList(m.MapKeys())
|
||||
sort.Sort(keys)
|
||||
for _, k := range keys {
|
||||
if _, found := sinfo.FieldsMap[k.String()]; found {
|
||||
panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
|
||||
}
|
||||
e.marshal("", k)
|
||||
e.flow = false
|
||||
e.marshal("", m.MapIndex(k))
|
||||
}
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
func (e *encoder) mappingv(tag string, f func()) {
|
||||
implicit := tag == ""
|
||||
style := yaml_BLOCK_MAPPING_STYLE
|
||||
if e.flow {
|
||||
e.flow = false
|
||||
style = yaml_FLOW_MAPPING_STYLE
|
||||
}
|
||||
yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
|
||||
e.emit()
|
||||
f()
|
||||
yaml_mapping_end_event_initialize(&e.event)
|
||||
e.emit()
|
||||
}
|
||||
|
||||
func (e *encoder) slicev(tag string, in reflect.Value) {
|
||||
implicit := tag == ""
|
||||
style := yaml_BLOCK_SEQUENCE_STYLE
|
||||
if e.flow {
|
||||
e.flow = false
|
||||
style = yaml_FLOW_SEQUENCE_STYLE
|
||||
}
|
||||
e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
|
||||
e.emit()
|
||||
n := in.Len()
|
||||
for i := 0; i < n; i++ {
|
||||
e.marshal("", in.Index(i))
|
||||
}
|
||||
e.must(yaml_sequence_end_event_initialize(&e.event))
|
||||
e.emit()
|
||||
}
|
||||
|
||||
// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
|
||||
//
|
||||
// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
|
||||
// in YAML 1.2 and by this package, but these should be marshalled quoted for
|
||||
// the time being for compatibility with other parsers.
|
||||
func isBase60Float(s string) (result bool) {
|
||||
// Fast path.
|
||||
if s == "" {
|
||||
return false
|
||||
}
|
||||
c := s[0]
|
||||
if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
|
||||
return false
|
||||
}
|
||||
// Do the full match.
|
||||
return base60float.MatchString(s)
|
||||
}
|
||||
|
||||
// From http://yaml.org/type/float.html, except the regular expression there
|
||||
// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
|
||||
var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
|
||||
|
||||
func (e *encoder) stringv(tag string, in reflect.Value) {
|
||||
var style yaml_scalar_style_t
|
||||
s := in.String()
|
||||
canUsePlain := true
|
||||
switch {
|
||||
case !utf8.ValidString(s):
|
||||
if tag == yaml_BINARY_TAG {
|
||||
failf("explicitly tagged !!binary data must be base64-encoded")
|
||||
}
|
||||
if tag != "" {
|
||||
failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
|
||||
}
|
||||
// It can't be encoded directly as YAML so use a binary tag
|
||||
// and encode it as base64.
|
||||
tag = yaml_BINARY_TAG
|
||||
s = encodeBase64(s)
|
||||
case tag == "":
|
||||
// Check to see if it would resolve to a specific
|
||||
// tag when encoded unquoted. If it doesn't,
|
||||
// there's no need to quote it.
|
||||
rtag, _ := resolve("", s)
|
||||
canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s)
|
||||
}
|
||||
// Note: it's possible for user code to emit invalid YAML
|
||||
// if they explicitly specify a tag and a string containing
|
||||
// text that's incompatible with that tag.
|
||||
switch {
|
||||
case strings.Contains(s, "\n"):
|
||||
style = yaml_LITERAL_SCALAR_STYLE
|
||||
case canUsePlain:
|
||||
style = yaml_PLAIN_SCALAR_STYLE
|
||||
default:
|
||||
style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
|
||||
}
|
||||
e.emitScalar(s, "", tag, style)
|
||||
}
|
||||
|
||||
func (e *encoder) boolv(tag string, in reflect.Value) {
|
||||
var s string
|
||||
if in.Bool() {
|
||||
s = "true"
|
||||
} else {
|
||||
s = "false"
|
||||
}
|
||||
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) intv(tag string, in reflect.Value) {
|
||||
s := strconv.FormatInt(in.Int(), 10)
|
||||
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) uintv(tag string, in reflect.Value) {
|
||||
s := strconv.FormatUint(in.Uint(), 10)
|
||||
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) timev(tag string, in reflect.Value) {
|
||||
t := in.Interface().(time.Time)
|
||||
s := t.Format(time.RFC3339Nano)
|
||||
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) floatv(tag string, in reflect.Value) {
|
||||
// Issue #352: When formatting, use the precision of the underlying value
|
||||
precision := 64
|
||||
if in.Kind() == reflect.Float32 {
|
||||
precision = 32
|
||||
}
|
||||
|
||||
s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
|
||||
switch s {
|
||||
case "+Inf":
|
||||
s = ".inf"
|
||||
case "-Inf":
|
||||
s = "-.inf"
|
||||
case "NaN":
|
||||
s = ".nan"
|
||||
}
|
||||
e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) nilv() {
|
||||
e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
|
||||
}
|
||||
|
||||
func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
|
||||
implicit := tag == ""
|
||||
e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
|
||||
e.emit()
|
||||
}
|
||||
@ -0,0 +1,5 @@
|
||||
module "gopkg.in/yaml.v2"
|
||||
|
||||
require (
|
||||
"gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405
|
||||
)
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,412 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
// Set the reader error and return 0.
|
||||
func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
|
||||
parser.error = yaml_READER_ERROR
|
||||
parser.problem = problem
|
||||
parser.problem_offset = offset
|
||||
parser.problem_value = value
|
||||
return false
|
||||
}
|
||||
|
||||
// Byte order marks.
|
||||
const (
|
||||
bom_UTF8 = "\xef\xbb\xbf"
|
||||
bom_UTF16LE = "\xff\xfe"
|
||||
bom_UTF16BE = "\xfe\xff"
|
||||
)
|
||||
|
||||
// Determine the input stream encoding by checking the BOM symbol. If no BOM is
|
||||
// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
|
||||
func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
|
||||
// Ensure that we had enough bytes in the raw buffer.
|
||||
for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
|
||||
if !yaml_parser_update_raw_buffer(parser) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// Determine the encoding.
|
||||
buf := parser.raw_buffer
|
||||
pos := parser.raw_buffer_pos
|
||||
avail := len(buf) - pos
|
||||
if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
|
||||
parser.encoding = yaml_UTF16LE_ENCODING
|
||||
parser.raw_buffer_pos += 2
|
||||
parser.offset += 2
|
||||
} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
|
||||
parser.encoding = yaml_UTF16BE_ENCODING
|
||||
parser.raw_buffer_pos += 2
|
||||
parser.offset += 2
|
||||
} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
|
||||
parser.encoding = yaml_UTF8_ENCODING
|
||||
parser.raw_buffer_pos += 3
|
||||
parser.offset += 3
|
||||
} else {
|
||||
parser.encoding = yaml_UTF8_ENCODING
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Update the raw buffer.
|
||||
func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
|
||||
size_read := 0
|
||||
|
||||
// Return if the raw buffer is full.
|
||||
if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
|
||||
return true
|
||||
}
|
||||
|
||||
// Return on EOF.
|
||||
if parser.eof {
|
||||
return true
|
||||
}
|
||||
|
||||
// Move the remaining bytes in the raw buffer to the beginning.
|
||||
if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
|
||||
copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
|
||||
}
|
||||
parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
|
||||
parser.raw_buffer_pos = 0
|
||||
|
||||
// Call the read handler to fill the buffer.
|
||||
size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
|
||||
parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
|
||||
if err == io.EOF {
|
||||
parser.eof = true
|
||||
} else if err != nil {
|
||||
return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Ensure that the buffer contains at least `length` characters.
|
||||
// Return true on success, false on failure.
|
||||
//
|
||||
// The length is supposed to be significantly less that the buffer size.
|
||||
func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
|
||||
if parser.read_handler == nil {
|
||||
panic("read handler must be set")
|
||||
}
|
||||
|
||||
// [Go] This function was changed to guarantee the requested length size at EOF.
|
||||
// The fact we need to do this is pretty awful, but the description above implies
|
||||
// for that to be the case, and there are tests
|
||||
|
||||
// If the EOF flag is set and the raw buffer is empty, do nothing.
|
||||
if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
|
||||
// [Go] ACTUALLY! Read the documentation of this function above.
|
||||
// This is just broken. To return true, we need to have the
|
||||
// given length in the buffer. Not doing that means every single
|
||||
// check that calls this function to make sure the buffer has a
|
||||
// given length is Go) panicking; or C) accessing invalid memory.
|
||||
//return true
|
||||
}
|
||||
|
||||
// Return if the buffer contains enough characters.
|
||||
if parser.unread >= length {
|
||||
return true
|
||||
}
|
||||
|
||||
// Determine the input encoding if it is not known yet.
|
||||
if parser.encoding == yaml_ANY_ENCODING {
|
||||
if !yaml_parser_determine_encoding(parser) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// Move the unread characters to the beginning of the buffer.
|
||||
buffer_len := len(parser.buffer)
|
||||
if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
|
||||
copy(parser.buffer, parser.buffer[parser.buffer_pos:])
|
||||
buffer_len -= parser.buffer_pos
|
||||
parser.buffer_pos = 0
|
||||
} else if parser.buffer_pos == buffer_len {
|
||||
buffer_len = 0
|
||||
parser.buffer_pos = 0
|
||||
}
|
||||
|
||||
// Open the whole buffer for writing, and cut it before returning.
|
||||
parser.buffer = parser.buffer[:cap(parser.buffer)]
|
||||
|
||||
// Fill the buffer until it has enough characters.
|
||||
first := true
|
||||
for parser.unread < length {
|
||||
|
||||
// Fill the raw buffer if necessary.
|
||||
if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
|
||||
if !yaml_parser_update_raw_buffer(parser) {
|
||||
parser.buffer = parser.buffer[:buffer_len]
|
||||
return false
|
||||
}
|
||||
}
|
||||
first = false
|
||||
|
||||
// Decode the raw buffer.
|
||||
inner:
|
||||
for parser.raw_buffer_pos != len(parser.raw_buffer) {
|
||||
var value rune
|
||||
var width int
|
||||
|
||||
raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
|
||||
|
||||
// Decode the next character.
|
||||
switch parser.encoding {
|
||||
case yaml_UTF8_ENCODING:
|
||||
// Decode a UTF-8 character. Check RFC 3629
|
||||
// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
|
||||
//
|
||||
// The following table (taken from the RFC) is used for
|
||||
// decoding.
|
||||
//
|
||||
// Char. number range | UTF-8 octet sequence
|
||||
// (hexadecimal) | (binary)
|
||||
// --------------------+------------------------------------
|
||||
// 0000 0000-0000 007F | 0xxxxxxx
|
||||
// 0000 0080-0000 07FF | 110xxxxx 10xxxxxx
|
||||
// 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
|
||||
// 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
|
||||
//
|
||||
// Additionally, the characters in the range 0xD800-0xDFFF
|
||||
// are prohibited as they are reserved for use with UTF-16
|
||||
// surrogate pairs.
|
||||
|
||||
// Determine the length of the UTF-8 sequence.
|
||||
octet := parser.raw_buffer[parser.raw_buffer_pos]
|
||||
switch {
|
||||
case octet&0x80 == 0x00:
|
||||
width = 1
|
||||
case octet&0xE0 == 0xC0:
|
||||
width = 2
|
||||
case octet&0xF0 == 0xE0:
|
||||
width = 3
|
||||
case octet&0xF8 == 0xF0:
|
||||
width = 4
|
||||
default:
|
||||
// The leading octet is invalid.
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"invalid leading UTF-8 octet",
|
||||
parser.offset, int(octet))
|
||||
}
|
||||
|
||||
// Check if the raw buffer contains an incomplete character.
|
||||
if width > raw_unread {
|
||||
if parser.eof {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"incomplete UTF-8 octet sequence",
|
||||
parser.offset, -1)
|
||||
}
|
||||
break inner
|
||||
}
|
||||
|
||||
// Decode the leading octet.
|
||||
switch {
|
||||
case octet&0x80 == 0x00:
|
||||
value = rune(octet & 0x7F)
|
||||
case octet&0xE0 == 0xC0:
|
||||
value = rune(octet & 0x1F)
|
||||
case octet&0xF0 == 0xE0:
|
||||
value = rune(octet & 0x0F)
|
||||
case octet&0xF8 == 0xF0:
|
||||
value = rune(octet & 0x07)
|
||||
default:
|
||||
value = 0
|
||||
}
|
||||
|
||||
// Check and decode the trailing octets.
|
||||
for k := 1; k < width; k++ {
|
||||
octet = parser.raw_buffer[parser.raw_buffer_pos+k]
|
||||
|
||||
// Check if the octet is valid.
|
||||
if (octet & 0xC0) != 0x80 {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"invalid trailing UTF-8 octet",
|
||||
parser.offset+k, int(octet))
|
||||
}
|
||||
|
||||
// Decode the octet.
|
||||
value = (value << 6) + rune(octet&0x3F)
|
||||
}
|
||||
|
||||
// Check the length of the sequence against the value.
|
||||
switch {
|
||||
case width == 1:
|
||||
case width == 2 && value >= 0x80:
|
||||
case width == 3 && value >= 0x800:
|
||||
case width == 4 && value >= 0x10000:
|
||||
default:
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"invalid length of a UTF-8 sequence",
|
||||
parser.offset, -1)
|
||||
}
|
||||
|
||||
// Check the range of the value.
|
||||
if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"invalid Unicode character",
|
||||
parser.offset, int(value))
|
||||
}
|
||||
|
||||
case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
|
||||
var low, high int
|
||||
if parser.encoding == yaml_UTF16LE_ENCODING {
|
||||
low, high = 0, 1
|
||||
} else {
|
||||
low, high = 1, 0
|
||||
}
|
||||
|
||||
// The UTF-16 encoding is not as simple as one might
|
||||
// naively think. Check RFC 2781
|
||||
// (http://www.ietf.org/rfc/rfc2781.txt).
|
||||
//
|
||||
// Normally, two subsequent bytes describe a Unicode
|
||||
// character. However a special technique (called a
|
||||
// surrogate pair) is used for specifying character
|
||||
// values larger than 0xFFFF.
|
||||
//
|
||||
// A surrogate pair consists of two pseudo-characters:
|
||||
// high surrogate area (0xD800-0xDBFF)
|
||||
// low surrogate area (0xDC00-0xDFFF)
|
||||
//
|
||||
// The following formulas are used for decoding
|
||||
// and encoding characters using surrogate pairs:
|
||||
//
|
||||
// U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF)
|
||||
// U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF)
|
||||
// W1 = 110110yyyyyyyyyy
|
||||
// W2 = 110111xxxxxxxxxx
|
||||
//
|
||||
// where U is the character value, W1 is the high surrogate
|
||||
// area, W2 is the low surrogate area.
|
||||
|
||||
// Check for incomplete UTF-16 character.
|
||||
if raw_unread < 2 {
|
||||
if parser.eof {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"incomplete UTF-16 character",
|
||||
parser.offset, -1)
|
||||
}
|
||||
break inner
|
||||
}
|
||||
|
||||
// Get the character.
|
||||
value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
|
||||
(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
|
||||
|
||||
// Check for unexpected low surrogate area.
|
||||
if value&0xFC00 == 0xDC00 {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"unexpected low surrogate area",
|
||||
parser.offset, int(value))
|
||||
}
|
||||
|
||||
// Check for a high surrogate area.
|
||||
if value&0xFC00 == 0xD800 {
|
||||
width = 4
|
||||
|
||||
// Check for incomplete surrogate pair.
|
||||
if raw_unread < 4 {
|
||||
if parser.eof {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"incomplete UTF-16 surrogate pair",
|
||||
parser.offset, -1)
|
||||
}
|
||||
break inner
|
||||
}
|
||||
|
||||
// Get the next character.
|
||||
value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
|
||||
(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
|
||||
|
||||
// Check for a low surrogate area.
|
||||
if value2&0xFC00 != 0xDC00 {
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"expected low surrogate area",
|
||||
parser.offset+2, int(value2))
|
||||
}
|
||||
|
||||
// Generate the value of the surrogate pair.
|
||||
value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
|
||||
} else {
|
||||
width = 2
|
||||
}
|
||||
|
||||
default:
|
||||
panic("impossible")
|
||||
}
|
||||
|
||||
// Check if the character is in the allowed range:
|
||||
// #x9 | #xA | #xD | [#x20-#x7E] (8 bit)
|
||||
// | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit)
|
||||
// | [#x10000-#x10FFFF] (32 bit)
|
||||
switch {
|
||||
case value == 0x09:
|
||||
case value == 0x0A:
|
||||
case value == 0x0D:
|
||||
case value >= 0x20 && value <= 0x7E:
|
||||
case value == 0x85:
|
||||
case value >= 0xA0 && value <= 0xD7FF:
|
||||
case value >= 0xE000 && value <= 0xFFFD:
|
||||
case value >= 0x10000 && value <= 0x10FFFF:
|
||||
default:
|
||||
return yaml_parser_set_reader_error(parser,
|
||||
"control characters are not allowed",
|
||||
parser.offset, int(value))
|
||||
}
|
||||
|
||||
// Move the raw pointers.
|
||||
parser.raw_buffer_pos += width
|
||||
parser.offset += width
|
||||
|
||||
// Finally put the character into the buffer.
|
||||
if value <= 0x7F {
|
||||
// 0000 0000-0000 007F . 0xxxxxxx
|
||||
parser.buffer[buffer_len+0] = byte(value)
|
||||
buffer_len += 1
|
||||
} else if value <= 0x7FF {
|
||||
// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
|
||||
parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
|
||||
parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
|
||||
buffer_len += 2
|
||||
} else if value <= 0xFFFF {
|
||||
// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
|
||||
parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
|
||||
parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
|
||||
parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
|
||||
buffer_len += 3
|
||||
} else {
|
||||
// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
|
||||
parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
|
||||
parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
|
||||
parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
|
||||
parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
|
||||
buffer_len += 4
|
||||
}
|
||||
|
||||
parser.unread++
|
||||
}
|
||||
|
||||
// On EOF, put NUL into the buffer and return.
|
||||
if parser.eof {
|
||||
parser.buffer[buffer_len] = 0
|
||||
buffer_len++
|
||||
parser.unread++
|
||||
break
|
||||
}
|
||||
}
|
||||
// [Go] Read the documentation of this function above. To return true,
|
||||
// we need to have the given length in the buffer. Not doing that means
|
||||
// every single check that calls this function to make sure the buffer
|
||||
// has a given length is Go) panicking; or C) accessing invalid memory.
|
||||
// This happens here due to the EOF above breaking early.
|
||||
for buffer_len < length {
|
||||
parser.buffer[buffer_len] = 0
|
||||
buffer_len++
|
||||
}
|
||||
parser.buffer = parser.buffer[:buffer_len]
|
||||
return true
|
||||
}
|
||||
@ -0,0 +1,258 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"encoding/base64"
|
||||
"math"
|
||||
"regexp"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
type resolveMapItem struct {
|
||||
value interface{}
|
||||
tag string
|
||||
}
|
||||
|
||||
var resolveTable = make([]byte, 256)
|
||||
var resolveMap = make(map[string]resolveMapItem)
|
||||
|
||||
func init() {
|
||||
t := resolveTable
|
||||
t[int('+')] = 'S' // Sign
|
||||
t[int('-')] = 'S'
|
||||
for _, c := range "0123456789" {
|
||||
t[int(c)] = 'D' // Digit
|
||||
}
|
||||
for _, c := range "yYnNtTfFoO~" {
|
||||
t[int(c)] = 'M' // In map
|
||||
}
|
||||
t[int('.')] = '.' // Float (potentially in map)
|
||||
|
||||
var resolveMapList = []struct {
|
||||
v interface{}
|
||||
tag string
|
||||
l []string
|
||||
}{
|
||||
{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
|
||||
{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
|
||||
{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
|
||||
{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
|
||||
{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
|
||||
{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
|
||||
{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
|
||||
{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
|
||||
{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
|
||||
{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
|
||||
{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
|
||||
{"<<", yaml_MERGE_TAG, []string{"<<"}},
|
||||
}
|
||||
|
||||
m := resolveMap
|
||||
for _, item := range resolveMapList {
|
||||
for _, s := range item.l {
|
||||
m[s] = resolveMapItem{item.v, item.tag}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const longTagPrefix = "tag:yaml.org,2002:"
|
||||
|
||||
func shortTag(tag string) string {
|
||||
// TODO This can easily be made faster and produce less garbage.
|
||||
if strings.HasPrefix(tag, longTagPrefix) {
|
||||
return "!!" + tag[len(longTagPrefix):]
|
||||
}
|
||||
return tag
|
||||
}
|
||||
|
||||
func longTag(tag string) string {
|
||||
if strings.HasPrefix(tag, "!!") {
|
||||
return longTagPrefix + tag[2:]
|
||||
}
|
||||
return tag
|
||||
}
|
||||
|
||||
func resolvableTag(tag string) bool {
|
||||
switch tag {
|
||||
case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
var yamlStyleFloat = regexp.MustCompile(`^[-+]?[0-9]*\.?[0-9]+([eE][-+][0-9]+)?$`)
|
||||
|
||||
func resolve(tag string, in string) (rtag string, out interface{}) {
|
||||
if !resolvableTag(tag) {
|
||||
return tag, in
|
||||
}
|
||||
|
||||
defer func() {
|
||||
switch tag {
|
||||
case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
|
||||
return
|
||||
case yaml_FLOAT_TAG:
|
||||
if rtag == yaml_INT_TAG {
|
||||
switch v := out.(type) {
|
||||
case int64:
|
||||
rtag = yaml_FLOAT_TAG
|
||||
out = float64(v)
|
||||
return
|
||||
case int:
|
||||
rtag = yaml_FLOAT_TAG
|
||||
out = float64(v)
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
|
||||
}()
|
||||
|
||||
// Any data is accepted as a !!str or !!binary.
|
||||
// Otherwise, the prefix is enough of a hint about what it might be.
|
||||
hint := byte('N')
|
||||
if in != "" {
|
||||
hint = resolveTable[in[0]]
|
||||
}
|
||||
if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
|
||||
// Handle things we can lookup in a map.
|
||||
if item, ok := resolveMap[in]; ok {
|
||||
return item.tag, item.value
|
||||
}
|
||||
|
||||
// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
|
||||
// are purposefully unsupported here. They're still quoted on
|
||||
// the way out for compatibility with other parser, though.
|
||||
|
||||
switch hint {
|
||||
case 'M':
|
||||
// We've already checked the map above.
|
||||
|
||||
case '.':
|
||||
// Not in the map, so maybe a normal float.
|
||||
floatv, err := strconv.ParseFloat(in, 64)
|
||||
if err == nil {
|
||||
return yaml_FLOAT_TAG, floatv
|
||||
}
|
||||
|
||||
case 'D', 'S':
|
||||
// Int, float, or timestamp.
|
||||
// Only try values as a timestamp if the value is unquoted or there's an explicit
|
||||
// !!timestamp tag.
|
||||
if tag == "" || tag == yaml_TIMESTAMP_TAG {
|
||||
t, ok := parseTimestamp(in)
|
||||
if ok {
|
||||
return yaml_TIMESTAMP_TAG, t
|
||||
}
|
||||
}
|
||||
|
||||
plain := strings.Replace(in, "_", "", -1)
|
||||
intv, err := strconv.ParseInt(plain, 0, 64)
|
||||
if err == nil {
|
||||
if intv == int64(int(intv)) {
|
||||
return yaml_INT_TAG, int(intv)
|
||||
} else {
|
||||
return yaml_INT_TAG, intv
|
||||
}
|
||||
}
|
||||
uintv, err := strconv.ParseUint(plain, 0, 64)
|
||||
if err == nil {
|
||||
return yaml_INT_TAG, uintv
|
||||
}
|
||||
if yamlStyleFloat.MatchString(plain) {
|
||||
floatv, err := strconv.ParseFloat(plain, 64)
|
||||
if err == nil {
|
||||
return yaml_FLOAT_TAG, floatv
|
||||
}
|
||||
}
|
||||
if strings.HasPrefix(plain, "0b") {
|
||||
intv, err := strconv.ParseInt(plain[2:], 2, 64)
|
||||
if err == nil {
|
||||
if intv == int64(int(intv)) {
|
||||
return yaml_INT_TAG, int(intv)
|
||||
} else {
|
||||
return yaml_INT_TAG, intv
|
||||
}
|
||||
}
|
||||
uintv, err := strconv.ParseUint(plain[2:], 2, 64)
|
||||
if err == nil {
|
||||
return yaml_INT_TAG, uintv
|
||||
}
|
||||
} else if strings.HasPrefix(plain, "-0b") {
|
||||
intv, err := strconv.ParseInt("-" + plain[3:], 2, 64)
|
||||
if err == nil {
|
||||
if true || intv == int64(int(intv)) {
|
||||
return yaml_INT_TAG, int(intv)
|
||||
} else {
|
||||
return yaml_INT_TAG, intv
|
||||
}
|
||||
}
|
||||
}
|
||||
default:
|
||||
panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
|
||||
}
|
||||
}
|
||||
return yaml_STR_TAG, in
|
||||
}
|
||||
|
||||
// encodeBase64 encodes s as base64 that is broken up into multiple lines
|
||||
// as appropriate for the resulting length.
|
||||
func encodeBase64(s string) string {
|
||||
const lineLen = 70
|
||||
encLen := base64.StdEncoding.EncodedLen(len(s))
|
||||
lines := encLen/lineLen + 1
|
||||
buf := make([]byte, encLen*2+lines)
|
||||
in := buf[0:encLen]
|
||||
out := buf[encLen:]
|
||||
base64.StdEncoding.Encode(in, []byte(s))
|
||||
k := 0
|
||||
for i := 0; i < len(in); i += lineLen {
|
||||
j := i + lineLen
|
||||
if j > len(in) {
|
||||
j = len(in)
|
||||
}
|
||||
k += copy(out[k:], in[i:j])
|
||||
if lines > 1 {
|
||||
out[k] = '\n'
|
||||
k++
|
||||
}
|
||||
}
|
||||
return string(out[:k])
|
||||
}
|
||||
|
||||
// This is a subset of the formats allowed by the regular expression
|
||||
// defined at http://yaml.org/type/timestamp.html.
|
||||
var allowedTimestampFormats = []string{
|
||||
"2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields.
|
||||
"2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t".
|
||||
"2006-1-2 15:4:5.999999999", // space separated with no time zone
|
||||
"2006-1-2", // date only
|
||||
// Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5"
|
||||
// from the set of examples.
|
||||
}
|
||||
|
||||
// parseTimestamp parses s as a timestamp string and
|
||||
// returns the timestamp and reports whether it succeeded.
|
||||
// Timestamp formats are defined at http://yaml.org/type/timestamp.html
|
||||
func parseTimestamp(s string) (time.Time, bool) {
|
||||
// TODO write code to check all the formats supported by
|
||||
// http://yaml.org/type/timestamp.html instead of using time.Parse.
|
||||
|
||||
// Quick check: all date formats start with YYYY-.
|
||||
i := 0
|
||||
for ; i < len(s); i++ {
|
||||
if c := s[i]; c < '0' || c > '9' {
|
||||
break
|
||||
}
|
||||
}
|
||||
if i != 4 || i == len(s) || s[i] != '-' {
|
||||
return time.Time{}, false
|
||||
}
|
||||
for _, format := range allowedTimestampFormats {
|
||||
if t, err := time.Parse(format, s); err == nil {
|
||||
return t, true
|
||||
}
|
||||
}
|
||||
return time.Time{}, false
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,113 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
type keyList []reflect.Value
|
||||
|
||||
func (l keyList) Len() int { return len(l) }
|
||||
func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
|
||||
func (l keyList) Less(i, j int) bool {
|
||||
a := l[i]
|
||||
b := l[j]
|
||||
ak := a.Kind()
|
||||
bk := b.Kind()
|
||||
for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
|
||||
a = a.Elem()
|
||||
ak = a.Kind()
|
||||
}
|
||||
for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
|
||||
b = b.Elem()
|
||||
bk = b.Kind()
|
||||
}
|
||||
af, aok := keyFloat(a)
|
||||
bf, bok := keyFloat(b)
|
||||
if aok && bok {
|
||||
if af != bf {
|
||||
return af < bf
|
||||
}
|
||||
if ak != bk {
|
||||
return ak < bk
|
||||
}
|
||||
return numLess(a, b)
|
||||
}
|
||||
if ak != reflect.String || bk != reflect.String {
|
||||
return ak < bk
|
||||
}
|
||||
ar, br := []rune(a.String()), []rune(b.String())
|
||||
for i := 0; i < len(ar) && i < len(br); i++ {
|
||||
if ar[i] == br[i] {
|
||||
continue
|
||||
}
|
||||
al := unicode.IsLetter(ar[i])
|
||||
bl := unicode.IsLetter(br[i])
|
||||
if al && bl {
|
||||
return ar[i] < br[i]
|
||||
}
|
||||
if al || bl {
|
||||
return bl
|
||||
}
|
||||
var ai, bi int
|
||||
var an, bn int64
|
||||
if ar[i] == '0' || br[i] == '0' {
|
||||
for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- {
|
||||
if ar[j] != '0' {
|
||||
an = 1
|
||||
bn = 1
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
|
||||
an = an*10 + int64(ar[ai]-'0')
|
||||
}
|
||||
for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
|
||||
bn = bn*10 + int64(br[bi]-'0')
|
||||
}
|
||||
if an != bn {
|
||||
return an < bn
|
||||
}
|
||||
if ai != bi {
|
||||
return ai < bi
|
||||
}
|
||||
return ar[i] < br[i]
|
||||
}
|
||||
return len(ar) < len(br)
|
||||
}
|
||||
|
||||
// keyFloat returns a float value for v if it is a number/bool
|
||||
// and whether it is a number/bool or not.
|
||||
func keyFloat(v reflect.Value) (f float64, ok bool) {
|
||||
switch v.Kind() {
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return float64(v.Int()), true
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return v.Float(), true
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return float64(v.Uint()), true
|
||||
case reflect.Bool:
|
||||
if v.Bool() {
|
||||
return 1, true
|
||||
}
|
||||
return 0, true
|
||||
}
|
||||
return 0, false
|
||||
}
|
||||
|
||||
// numLess returns whether a < b.
|
||||
// a and b must necessarily have the same kind.
|
||||
func numLess(a, b reflect.Value) bool {
|
||||
switch a.Kind() {
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return a.Int() < b.Int()
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return a.Float() < b.Float()
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return a.Uint() < b.Uint()
|
||||
case reflect.Bool:
|
||||
return !a.Bool() && b.Bool()
|
||||
}
|
||||
panic("not a number")
|
||||
}
|
||||
@ -0,0 +1,26 @@
|
||||
package yaml
|
||||
|
||||
// Set the writer error and return false.
|
||||
func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
|
||||
emitter.error = yaml_WRITER_ERROR
|
||||
emitter.problem = problem
|
||||
return false
|
||||
}
|
||||
|
||||
// Flush the output buffer.
|
||||
func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
|
||||
if emitter.write_handler == nil {
|
||||
panic("write handler not set")
|
||||
}
|
||||
|
||||
// Check if the buffer is empty.
|
||||
if emitter.buffer_pos == 0 {
|
||||
return true
|
||||
}
|
||||
|
||||
if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
|
||||
return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
|
||||
}
|
||||
emitter.buffer_pos = 0
|
||||
return true
|
||||
}
|
||||
@ -0,0 +1,466 @@
|
||||
// Package yaml implements YAML support for the Go language.
|
||||
//
|
||||
// Source code and other details for the project are available at GitHub:
|
||||
//
|
||||
// https://github.com/go-yaml/yaml
|
||||
//
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"reflect"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
// MapSlice encodes and decodes as a YAML map.
|
||||
// The order of keys is preserved when encoding and decoding.
|
||||
type MapSlice []MapItem
|
||||
|
||||
// MapItem is an item in a MapSlice.
|
||||
type MapItem struct {
|
||||
Key, Value interface{}
|
||||
}
|
||||
|
||||
// The Unmarshaler interface may be implemented by types to customize their
|
||||
// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
|
||||
// method receives a function that may be called to unmarshal the original
|
||||
// YAML value into a field or variable. It is safe to call the unmarshal
|
||||
// function parameter more than once if necessary.
|
||||
type Unmarshaler interface {
|
||||
UnmarshalYAML(unmarshal func(interface{}) error) error
|
||||
}
|
||||
|
||||
// The Marshaler interface may be implemented by types to customize their
|
||||
// behavior when being marshaled into a YAML document. The returned value
|
||||
// is marshaled in place of the original value implementing Marshaler.
|
||||
//
|
||||
// If an error is returned by MarshalYAML, the marshaling procedure stops
|
||||
// and returns with the provided error.
|
||||
type Marshaler interface {
|
||||
MarshalYAML() (interface{}, error)
|
||||
}
|
||||
|
||||
// Unmarshal decodes the first document found within the in byte slice
|
||||
// and assigns decoded values into the out value.
|
||||
//
|
||||
// Maps and pointers (to a struct, string, int, etc) are accepted as out
|
||||
// values. If an internal pointer within a struct is not initialized,
|
||||
// the yaml package will initialize it if necessary for unmarshalling
|
||||
// the provided data. The out parameter must not be nil.
|
||||
//
|
||||
// The type of the decoded values should be compatible with the respective
|
||||
// values in out. If one or more values cannot be decoded due to a type
|
||||
// mismatches, decoding continues partially until the end of the YAML
|
||||
// content, and a *yaml.TypeError is returned with details for all
|
||||
// missed values.
|
||||
//
|
||||
// Struct fields are only unmarshalled if they are exported (have an
|
||||
// upper case first letter), and are unmarshalled using the field name
|
||||
// lowercased as the default key. Custom keys may be defined via the
|
||||
// "yaml" name in the field tag: the content preceding the first comma
|
||||
// is used as the key, and the following comma-separated options are
|
||||
// used to tweak the marshalling process (see Marshal).
|
||||
// Conflicting names result in a runtime error.
|
||||
//
|
||||
// For example:
|
||||
//
|
||||
// type T struct {
|
||||
// F int `yaml:"a,omitempty"`
|
||||
// B int
|
||||
// }
|
||||
// var t T
|
||||
// yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
|
||||
//
|
||||
// See the documentation of Marshal for the format of tags and a list of
|
||||
// supported tag options.
|
||||
//
|
||||
func Unmarshal(in []byte, out interface{}) (err error) {
|
||||
return unmarshal(in, out, false)
|
||||
}
|
||||
|
||||
// UnmarshalStrict is like Unmarshal except that any fields that are found
|
||||
// in the data that do not have corresponding struct members, or mapping
|
||||
// keys that are duplicates, will result in
|
||||
// an error.
|
||||
func UnmarshalStrict(in []byte, out interface{}) (err error) {
|
||||
return unmarshal(in, out, true)
|
||||
}
|
||||
|
||||
// A Decorder reads and decodes YAML values from an input stream.
|
||||
type Decoder struct {
|
||||
strict bool
|
||||
parser *parser
|
||||
}
|
||||
|
||||
// NewDecoder returns a new decoder that reads from r.
|
||||
//
|
||||
// The decoder introduces its own buffering and may read
|
||||
// data from r beyond the YAML values requested.
|
||||
func NewDecoder(r io.Reader) *Decoder {
|
||||
return &Decoder{
|
||||
parser: newParserFromReader(r),
|
||||
}
|
||||
}
|
||||
|
||||
// SetStrict sets whether strict decoding behaviour is enabled when
|
||||
// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict.
|
||||
func (dec *Decoder) SetStrict(strict bool) {
|
||||
dec.strict = strict
|
||||
}
|
||||
|
||||
// Decode reads the next YAML-encoded value from its input
|
||||
// and stores it in the value pointed to by v.
|
||||
//
|
||||
// See the documentation for Unmarshal for details about the
|
||||
// conversion of YAML into a Go value.
|
||||
func (dec *Decoder) Decode(v interface{}) (err error) {
|
||||
d := newDecoder(dec.strict)
|
||||
defer handleErr(&err)
|
||||
node := dec.parser.parse()
|
||||
if node == nil {
|
||||
return io.EOF
|
||||
}
|
||||
out := reflect.ValueOf(v)
|
||||
if out.Kind() == reflect.Ptr && !out.IsNil() {
|
||||
out = out.Elem()
|
||||
}
|
||||
d.unmarshal(node, out)
|
||||
if len(d.terrors) > 0 {
|
||||
return &TypeError{d.terrors}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func unmarshal(in []byte, out interface{}, strict bool) (err error) {
|
||||
defer handleErr(&err)
|
||||
d := newDecoder(strict)
|
||||
p := newParser(in)
|
||||
defer p.destroy()
|
||||
node := p.parse()
|
||||
if node != nil {
|
||||
v := reflect.ValueOf(out)
|
||||
if v.Kind() == reflect.Ptr && !v.IsNil() {
|
||||
v = v.Elem()
|
||||
}
|
||||
d.unmarshal(node, v)
|
||||
}
|
||||
if len(d.terrors) > 0 {
|
||||
return &TypeError{d.terrors}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Marshal serializes the value provided into a YAML document. The structure
|
||||
// of the generated document will reflect the structure of the value itself.
|
||||
// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
|
||||
//
|
||||
// Struct fields are only marshalled if they are exported (have an upper case
|
||||
// first letter), and are marshalled using the field name lowercased as the
|
||||
// default key. Custom keys may be defined via the "yaml" name in the field
|
||||
// tag: the content preceding the first comma is used as the key, and the
|
||||
// following comma-separated options are used to tweak the marshalling process.
|
||||
// Conflicting names result in a runtime error.
|
||||
//
|
||||
// The field tag format accepted is:
|
||||
//
|
||||
// `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
|
||||
//
|
||||
// The following flags are currently supported:
|
||||
//
|
||||
// omitempty Only include the field if it's not set to the zero
|
||||
// value for the type or to empty slices or maps.
|
||||
// Zero valued structs will be omitted if all their public
|
||||
// fields are zero, unless they implement an IsZero
|
||||
// method (see the IsZeroer interface type), in which
|
||||
// case the field will be included if that method returns true.
|
||||
//
|
||||
// flow Marshal using a flow style (useful for structs,
|
||||
// sequences and maps).
|
||||
//
|
||||
// inline Inline the field, which must be a struct or a map,
|
||||
// causing all of its fields or keys to be processed as if
|
||||
// they were part of the outer struct. For maps, keys must
|
||||
// not conflict with the yaml keys of other struct fields.
|
||||
//
|
||||
// In addition, if the key is "-", the field is ignored.
|
||||
//
|
||||
// For example:
|
||||
//
|
||||
// type T struct {
|
||||
// F int `yaml:"a,omitempty"`
|
||||
// B int
|
||||
// }
|
||||
// yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
|
||||
// yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
|
||||
//
|
||||
func Marshal(in interface{}) (out []byte, err error) {
|
||||
defer handleErr(&err)
|
||||
e := newEncoder()
|
||||
defer e.destroy()
|
||||
e.marshalDoc("", reflect.ValueOf(in))
|
||||
e.finish()
|
||||
out = e.out
|
||||
return
|
||||
}
|
||||
|
||||
// An Encoder writes YAML values to an output stream.
|
||||
type Encoder struct {
|
||||
encoder *encoder
|
||||
}
|
||||
|
||||
// NewEncoder returns a new encoder that writes to w.
|
||||
// The Encoder should be closed after use to flush all data
|
||||
// to w.
|
||||
func NewEncoder(w io.Writer) *Encoder {
|
||||
return &Encoder{
|
||||
encoder: newEncoderWithWriter(w),
|
||||
}
|
||||
}
|
||||
|
||||
// Encode writes the YAML encoding of v to the stream.
|
||||
// If multiple items are encoded to the stream, the
|
||||
// second and subsequent document will be preceded
|
||||
// with a "---" document separator, but the first will not.
|
||||
//
|
||||
// See the documentation for Marshal for details about the conversion of Go
|
||||
// values to YAML.
|
||||
func (e *Encoder) Encode(v interface{}) (err error) {
|
||||
defer handleErr(&err)
|
||||
e.encoder.marshalDoc("", reflect.ValueOf(v))
|
||||
return nil
|
||||
}
|
||||
|
||||
// Close closes the encoder by writing any remaining data.
|
||||
// It does not write a stream terminating string "...".
|
||||
func (e *Encoder) Close() (err error) {
|
||||
defer handleErr(&err)
|
||||
e.encoder.finish()
|
||||
return nil
|
||||
}
|
||||
|
||||
func handleErr(err *error) {
|
||||
if v := recover(); v != nil {
|
||||
if e, ok := v.(yamlError); ok {
|
||||
*err = e.err
|
||||
} else {
|
||||
panic(v)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type yamlError struct {
|
||||
err error
|
||||
}
|
||||
|
||||
func fail(err error) {
|
||||
panic(yamlError{err})
|
||||
}
|
||||
|
||||
func failf(format string, args ...interface{}) {
|
||||
panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
|
||||
}
|
||||
|
||||
// A TypeError is returned by Unmarshal when one or more fields in
|
||||
// the YAML document cannot be properly decoded into the requested
|
||||
// types. When this error is returned, the value is still
|
||||
// unmarshaled partially.
|
||||
type TypeError struct {
|
||||
Errors []string
|
||||
}
|
||||
|
||||
func (e *TypeError) Error() string {
|
||||
return fmt.Sprintf("yaml: unmarshal errors:\n %s", strings.Join(e.Errors, "\n "))
|
||||
}
|
||||
|
||||
// --------------------------------------------------------------------------
|
||||
// Maintain a mapping of keys to structure field indexes
|
||||
|
||||
// The code in this section was copied from mgo/bson.
|
||||
|
||||
// structInfo holds details for the serialization of fields of
|
||||
// a given struct.
|
||||
type structInfo struct {
|
||||
FieldsMap map[string]fieldInfo
|
||||
FieldsList []fieldInfo
|
||||
|
||||
// InlineMap is the number of the field in the struct that
|
||||
// contains an ,inline map, or -1 if there's none.
|
||||
InlineMap int
|
||||
}
|
||||
|
||||
type fieldInfo struct {
|
||||
Key string
|
||||
Num int
|
||||
OmitEmpty bool
|
||||
Flow bool
|
||||
// Id holds the unique field identifier, so we can cheaply
|
||||
// check for field duplicates without maintaining an extra map.
|
||||
Id int
|
||||
|
||||
// Inline holds the field index if the field is part of an inlined struct.
|
||||
Inline []int
|
||||
}
|
||||
|
||||
var structMap = make(map[reflect.Type]*structInfo)
|
||||
var fieldMapMutex sync.RWMutex
|
||||
|
||||
func getStructInfo(st reflect.Type) (*structInfo, error) {
|
||||
fieldMapMutex.RLock()
|
||||
sinfo, found := structMap[st]
|
||||
fieldMapMutex.RUnlock()
|
||||
if found {
|
||||
return sinfo, nil
|
||||
}
|
||||
|
||||
n := st.NumField()
|
||||
fieldsMap := make(map[string]fieldInfo)
|
||||
fieldsList := make([]fieldInfo, 0, n)
|
||||
inlineMap := -1
|
||||
for i := 0; i != n; i++ {
|
||||
field := st.Field(i)
|
||||
if field.PkgPath != "" && !field.Anonymous {
|
||||
continue // Private field
|
||||
}
|
||||
|
||||
info := fieldInfo{Num: i}
|
||||
|
||||
tag := field.Tag.Get("yaml")
|
||||
if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
|
||||
tag = string(field.Tag)
|
||||
}
|
||||
if tag == "-" {
|
||||
continue
|
||||
}
|
||||
|
||||
inline := false
|
||||
fields := strings.Split(tag, ",")
|
||||
if len(fields) > 1 {
|
||||
for _, flag := range fields[1:] {
|
||||
switch flag {
|
||||
case "omitempty":
|
||||
info.OmitEmpty = true
|
||||
case "flow":
|
||||
info.Flow = true
|
||||
case "inline":
|
||||
inline = true
|
||||
default:
|
||||
return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
|
||||
}
|
||||
}
|
||||
tag = fields[0]
|
||||
}
|
||||
|
||||
if inline {
|
||||
switch field.Type.Kind() {
|
||||
case reflect.Map:
|
||||
if inlineMap >= 0 {
|
||||
return nil, errors.New("Multiple ,inline maps in struct " + st.String())
|
||||
}
|
||||
if field.Type.Key() != reflect.TypeOf("") {
|
||||
return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
|
||||
}
|
||||
inlineMap = info.Num
|
||||
case reflect.Struct:
|
||||
sinfo, err := getStructInfo(field.Type)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for _, finfo := range sinfo.FieldsList {
|
||||
if _, found := fieldsMap[finfo.Key]; found {
|
||||
msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
|
||||
return nil, errors.New(msg)
|
||||
}
|
||||
if finfo.Inline == nil {
|
||||
finfo.Inline = []int{i, finfo.Num}
|
||||
} else {
|
||||
finfo.Inline = append([]int{i}, finfo.Inline...)
|
||||
}
|
||||
finfo.Id = len(fieldsList)
|
||||
fieldsMap[finfo.Key] = finfo
|
||||
fieldsList = append(fieldsList, finfo)
|
||||
}
|
||||
default:
|
||||
//return nil, errors.New("Option ,inline needs a struct value or map field")
|
||||
return nil, errors.New("Option ,inline needs a struct value field")
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if tag != "" {
|
||||
info.Key = tag
|
||||
} else {
|
||||
info.Key = strings.ToLower(field.Name)
|
||||
}
|
||||
|
||||
if _, found = fieldsMap[info.Key]; found {
|
||||
msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
|
||||
return nil, errors.New(msg)
|
||||
}
|
||||
|
||||
info.Id = len(fieldsList)
|
||||
fieldsList = append(fieldsList, info)
|
||||
fieldsMap[info.Key] = info
|
||||
}
|
||||
|
||||
sinfo = &structInfo{
|
||||
FieldsMap: fieldsMap,
|
||||
FieldsList: fieldsList,
|
||||
InlineMap: inlineMap,
|
||||
}
|
||||
|
||||
fieldMapMutex.Lock()
|
||||
structMap[st] = sinfo
|
||||
fieldMapMutex.Unlock()
|
||||
return sinfo, nil
|
||||
}
|
||||
|
||||
// IsZeroer is used to check whether an object is zero to
|
||||
// determine whether it should be omitted when marshaling
|
||||
// with the omitempty flag. One notable implementation
|
||||
// is time.Time.
|
||||
type IsZeroer interface {
|
||||
IsZero() bool
|
||||
}
|
||||
|
||||
func isZero(v reflect.Value) bool {
|
||||
kind := v.Kind()
|
||||
if z, ok := v.Interface().(IsZeroer); ok {
|
||||
if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
|
||||
return true
|
||||
}
|
||||
return z.IsZero()
|
||||
}
|
||||
switch kind {
|
||||
case reflect.String:
|
||||
return len(v.String()) == 0
|
||||
case reflect.Interface, reflect.Ptr:
|
||||
return v.IsNil()
|
||||
case reflect.Slice:
|
||||
return v.Len() == 0
|
||||
case reflect.Map:
|
||||
return v.Len() == 0
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return v.Int() == 0
|
||||
case reflect.Float32, reflect.Float64:
|
||||
return v.Float() == 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||||
return v.Uint() == 0
|
||||
case reflect.Bool:
|
||||
return !v.Bool()
|
||||
case reflect.Struct:
|
||||
vt := v.Type()
|
||||
for i := v.NumField() - 1; i >= 0; i-- {
|
||||
if vt.Field(i).PkgPath != "" {
|
||||
continue // Private field
|
||||
}
|
||||
if !isZero(v.Field(i)) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,738 @@
|
||||
package yaml
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
)
|
||||
|
||||
// The version directive data.
|
||||
type yaml_version_directive_t struct {
|
||||
major int8 // The major version number.
|
||||
minor int8 // The minor version number.
|
||||
}
|
||||
|
||||
// The tag directive data.
|
||||
type yaml_tag_directive_t struct {
|
||||
handle []byte // The tag handle.
|
||||
prefix []byte // The tag prefix.
|
||||
}
|
||||
|
||||
type yaml_encoding_t int
|
||||
|
||||
// The stream encoding.
|
||||
const (
|
||||
// Let the parser choose the encoding.
|
||||
yaml_ANY_ENCODING yaml_encoding_t = iota
|
||||
|
||||
yaml_UTF8_ENCODING // The default UTF-8 encoding.
|
||||
yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
|
||||
yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
|
||||
)
|
||||
|
||||
type yaml_break_t int
|
||||
|
||||
// Line break types.
|
||||
const (
|
||||
// Let the parser choose the break type.
|
||||
yaml_ANY_BREAK yaml_break_t = iota
|
||||
|
||||
yaml_CR_BREAK // Use CR for line breaks (Mac style).
|
||||
yaml_LN_BREAK // Use LN for line breaks (Unix style).
|
||||
yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
|
||||
)
|
||||
|
||||
type yaml_error_type_t int
|
||||
|
||||
// Many bad things could happen with the parser and emitter.
|
||||
const (
|
||||
// No error is produced.
|
||||
yaml_NO_ERROR yaml_error_type_t = iota
|
||||
|
||||
yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory.
|
||||
yaml_READER_ERROR // Cannot read or decode the input stream.
|
||||
yaml_SCANNER_ERROR // Cannot scan the input stream.
|
||||
yaml_PARSER_ERROR // Cannot parse the input stream.
|
||||
yaml_COMPOSER_ERROR // Cannot compose a YAML document.
|
||||
yaml_WRITER_ERROR // Cannot write to the output stream.
|
||||
yaml_EMITTER_ERROR // Cannot emit a YAML stream.
|
||||
)
|
||||
|
||||
// The pointer position.
|
||||
type yaml_mark_t struct {
|
||||
index int // The position index.
|
||||
line int // The position line.
|
||||
column int // The position column.
|
||||
}
|
||||
|
||||
// Node Styles
|
||||
|
||||
type yaml_style_t int8
|
||||
|
||||
type yaml_scalar_style_t yaml_style_t
|
||||
|
||||
// Scalar styles.
|
||||
const (
|
||||
// Let the emitter choose the style.
|
||||
yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
|
||||
|
||||
yaml_PLAIN_SCALAR_STYLE // The plain scalar style.
|
||||
yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
|
||||
yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
|
||||
yaml_LITERAL_SCALAR_STYLE // The literal scalar style.
|
||||
yaml_FOLDED_SCALAR_STYLE // The folded scalar style.
|
||||
)
|
||||
|
||||
type yaml_sequence_style_t yaml_style_t
|
||||
|
||||
// Sequence styles.
|
||||
const (
|
||||
// Let the emitter choose the style.
|
||||
yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
|
||||
|
||||
yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
|
||||
yaml_FLOW_SEQUENCE_STYLE // The flow sequence style.
|
||||
)
|
||||
|
||||
type yaml_mapping_style_t yaml_style_t
|
||||
|
||||
// Mapping styles.
|
||||
const (
|
||||
// Let the emitter choose the style.
|
||||
yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
|
||||
|
||||
yaml_BLOCK_MAPPING_STYLE // The block mapping style.
|
||||
yaml_FLOW_MAPPING_STYLE // The flow mapping style.
|
||||
)
|
||||
|
||||
// Tokens
|
||||
|
||||
type yaml_token_type_t int
|
||||
|
||||
// Token types.
|
||||
const (
|
||||
// An empty token.
|
||||
yaml_NO_TOKEN yaml_token_type_t = iota
|
||||
|
||||
yaml_STREAM_START_TOKEN // A STREAM-START token.
|
||||
yaml_STREAM_END_TOKEN // A STREAM-END token.
|
||||
|
||||
yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
|
||||
yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token.
|
||||
yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token.
|
||||
yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token.
|
||||
|
||||
yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
|
||||
yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token.
|
||||
yaml_BLOCK_END_TOKEN // A BLOCK-END token.
|
||||
|
||||
yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
|
||||
yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token.
|
||||
yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token.
|
||||
yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token.
|
||||
|
||||
yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
|
||||
yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token.
|
||||
yaml_KEY_TOKEN // A KEY token.
|
||||
yaml_VALUE_TOKEN // A VALUE token.
|
||||
|
||||
yaml_ALIAS_TOKEN // An ALIAS token.
|
||||
yaml_ANCHOR_TOKEN // An ANCHOR token.
|
||||
yaml_TAG_TOKEN // A TAG token.
|
||||
yaml_SCALAR_TOKEN // A SCALAR token.
|
||||
)
|
||||
|
||||
func (tt yaml_token_type_t) String() string {
|
||||
switch tt {
|
||||
case yaml_NO_TOKEN:
|
||||
return "yaml_NO_TOKEN"
|
||||
case yaml_STREAM_START_TOKEN:
|
||||
return "yaml_STREAM_START_TOKEN"
|
||||
case yaml_STREAM_END_TOKEN:
|
||||
return "yaml_STREAM_END_TOKEN"
|
||||
case yaml_VERSION_DIRECTIVE_TOKEN:
|
||||
return "yaml_VERSION_DIRECTIVE_TOKEN"
|
||||
case yaml_TAG_DIRECTIVE_TOKEN:
|
||||
return "yaml_TAG_DIRECTIVE_TOKEN"
|
||||
case yaml_DOCUMENT_START_TOKEN:
|
||||
return "yaml_DOCUMENT_START_TOKEN"
|
||||
case yaml_DOCUMENT_END_TOKEN:
|
||||
return "yaml_DOCUMENT_END_TOKEN"
|
||||
case yaml_BLOCK_SEQUENCE_START_TOKEN:
|
||||
return "yaml_BLOCK_SEQUENCE_START_TOKEN"
|
||||
case yaml_BLOCK_MAPPING_START_TOKEN:
|
||||
return "yaml_BLOCK_MAPPING_START_TOKEN"
|
||||
case yaml_BLOCK_END_TOKEN:
|
||||
return "yaml_BLOCK_END_TOKEN"
|
||||
case yaml_FLOW_SEQUENCE_START_TOKEN:
|
||||
return "yaml_FLOW_SEQUENCE_START_TOKEN"
|
||||
case yaml_FLOW_SEQUENCE_END_TOKEN:
|
||||
return "yaml_FLOW_SEQUENCE_END_TOKEN"
|
||||
case yaml_FLOW_MAPPING_START_TOKEN:
|
||||
return "yaml_FLOW_MAPPING_START_TOKEN"
|
||||
case yaml_FLOW_MAPPING_END_TOKEN:
|
||||
return "yaml_FLOW_MAPPING_END_TOKEN"
|
||||
case yaml_BLOCK_ENTRY_TOKEN:
|
||||
return "yaml_BLOCK_ENTRY_TOKEN"
|
||||
case yaml_FLOW_ENTRY_TOKEN:
|
||||
return "yaml_FLOW_ENTRY_TOKEN"
|
||||
case yaml_KEY_TOKEN:
|
||||
return "yaml_KEY_TOKEN"
|
||||
case yaml_VALUE_TOKEN:
|
||||
return "yaml_VALUE_TOKEN"
|
||||
case yaml_ALIAS_TOKEN:
|
||||
return "yaml_ALIAS_TOKEN"
|
||||
case yaml_ANCHOR_TOKEN:
|
||||
return "yaml_ANCHOR_TOKEN"
|
||||
case yaml_TAG_TOKEN:
|
||||
return "yaml_TAG_TOKEN"
|
||||
case yaml_SCALAR_TOKEN:
|
||||
return "yaml_SCALAR_TOKEN"
|
||||
}
|
||||
return "<unknown token>"
|
||||
}
|
||||
|
||||
// The token structure.
|
||||
type yaml_token_t struct {
|
||||
// The token type.
|
||||
typ yaml_token_type_t
|
||||
|
||||
// The start/end of the token.
|
||||
start_mark, end_mark yaml_mark_t
|
||||
|
||||
// The stream encoding (for yaml_STREAM_START_TOKEN).
|
||||
encoding yaml_encoding_t
|
||||
|
||||
// The alias/anchor/scalar value or tag/tag directive handle
|
||||
// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
|
||||
value []byte
|
||||
|
||||
// The tag suffix (for yaml_TAG_TOKEN).
|
||||
suffix []byte
|
||||
|
||||
// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
|
||||
prefix []byte
|
||||
|
||||
// The scalar style (for yaml_SCALAR_TOKEN).
|
||||
style yaml_scalar_style_t
|
||||
|
||||
// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
|
||||
major, minor int8
|
||||
}
|
||||
|
||||
// Events
|
||||
|
||||
type yaml_event_type_t int8
|
||||
|
||||
// Event types.
|
||||
const (
|
||||
// An empty event.
|
||||
yaml_NO_EVENT yaml_event_type_t = iota
|
||||
|
||||
yaml_STREAM_START_EVENT // A STREAM-START event.
|
||||
yaml_STREAM_END_EVENT // A STREAM-END event.
|
||||
yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
|
||||
yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event.
|
||||
yaml_ALIAS_EVENT // An ALIAS event.
|
||||
yaml_SCALAR_EVENT // A SCALAR event.
|
||||
yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
|
||||
yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event.
|
||||
yaml_MAPPING_START_EVENT // A MAPPING-START event.
|
||||
yaml_MAPPING_END_EVENT // A MAPPING-END event.
|
||||
)
|
||||
|
||||
var eventStrings = []string{
|
||||
yaml_NO_EVENT: "none",
|
||||
yaml_STREAM_START_EVENT: "stream start",
|
||||
yaml_STREAM_END_EVENT: "stream end",
|
||||
yaml_DOCUMENT_START_EVENT: "document start",
|
||||
yaml_DOCUMENT_END_EVENT: "document end",
|
||||
yaml_ALIAS_EVENT: "alias",
|
||||
yaml_SCALAR_EVENT: "scalar",
|
||||
yaml_SEQUENCE_START_EVENT: "sequence start",
|
||||
yaml_SEQUENCE_END_EVENT: "sequence end",
|
||||
yaml_MAPPING_START_EVENT: "mapping start",
|
||||
yaml_MAPPING_END_EVENT: "mapping end",
|
||||
}
|
||||
|
||||
func (e yaml_event_type_t) String() string {
|
||||
if e < 0 || int(e) >= len(eventStrings) {
|
||||
return fmt.Sprintf("unknown event %d", e)
|
||||
}
|
||||
return eventStrings[e]
|
||||
}
|
||||
|
||||
// The event structure.
|
||||
type yaml_event_t struct {
|
||||
|
||||
// The event type.
|
||||
typ yaml_event_type_t
|
||||
|
||||
// The start and end of the event.
|
||||
start_mark, end_mark yaml_mark_t
|
||||
|
||||
// The document encoding (for yaml_STREAM_START_EVENT).
|
||||
encoding yaml_encoding_t
|
||||
|
||||
// The version directive (for yaml_DOCUMENT_START_EVENT).
|
||||
version_directive *yaml_version_directive_t
|
||||
|
||||
// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
|
||||
tag_directives []yaml_tag_directive_t
|
||||
|
||||
// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
|
||||
anchor []byte
|
||||
|
||||
// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
|
||||
tag []byte
|
||||
|
||||
// The scalar value (for yaml_SCALAR_EVENT).
|
||||
value []byte
|
||||
|
||||
// Is the document start/end indicator implicit, or the tag optional?
|
||||
// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
|
||||
implicit bool
|
||||
|
||||
// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
|
||||
quoted_implicit bool
|
||||
|
||||
// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
|
||||
style yaml_style_t
|
||||
}
|
||||
|
||||
func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) }
|
||||
func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
|
||||
func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) }
|
||||
|
||||
// Nodes
|
||||
|
||||
const (
|
||||
yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null.
|
||||
yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false.
|
||||
yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values.
|
||||
yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values.
|
||||
yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values.
|
||||
yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
|
||||
|
||||
yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
|
||||
yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
|
||||
|
||||
// Not in original libyaml.
|
||||
yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
|
||||
yaml_MERGE_TAG = "tag:yaml.org,2002:merge"
|
||||
|
||||
yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str.
|
||||
yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
|
||||
yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map.
|
||||
)
|
||||
|
||||
type yaml_node_type_t int
|
||||
|
||||
// Node types.
|
||||
const (
|
||||
// An empty node.
|
||||
yaml_NO_NODE yaml_node_type_t = iota
|
||||
|
||||
yaml_SCALAR_NODE // A scalar node.
|
||||
yaml_SEQUENCE_NODE // A sequence node.
|
||||
yaml_MAPPING_NODE // A mapping node.
|
||||
)
|
||||
|
||||
// An element of a sequence node.
|
||||
type yaml_node_item_t int
|
||||
|
||||
// An element of a mapping node.
|
||||
type yaml_node_pair_t struct {
|
||||
key int // The key of the element.
|
||||
value int // The value of the element.
|
||||
}
|
||||
|
||||
// The node structure.
|
||||
type yaml_node_t struct {
|
||||
typ yaml_node_type_t // The node type.
|
||||
tag []byte // The node tag.
|
||||
|
||||
// The node data.
|
||||
|
||||
// The scalar parameters (for yaml_SCALAR_NODE).
|
||||
scalar struct {
|
||||
value []byte // The scalar value.
|
||||
length int // The length of the scalar value.
|
||||
style yaml_scalar_style_t // The scalar style.
|
||||
}
|
||||
|
||||
// The sequence parameters (for YAML_SEQUENCE_NODE).
|
||||
sequence struct {
|
||||
items_data []yaml_node_item_t // The stack of sequence items.
|
||||
style yaml_sequence_style_t // The sequence style.
|
||||
}
|
||||
|
||||
// The mapping parameters (for yaml_MAPPING_NODE).
|
||||
mapping struct {
|
||||
pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value).
|
||||
pairs_start *yaml_node_pair_t // The beginning of the stack.
|
||||
pairs_end *yaml_node_pair_t // The end of the stack.
|
||||
pairs_top *yaml_node_pair_t // The top of the stack.
|
||||
style yaml_mapping_style_t // The mapping style.
|
||||
}
|
||||
|
||||
start_mark yaml_mark_t // The beginning of the node.
|
||||
end_mark yaml_mark_t // The end of the node.
|
||||
|
||||
}
|
||||
|
||||
// The document structure.
|
||||
type yaml_document_t struct {
|
||||
|
||||
// The document nodes.
|
||||
nodes []yaml_node_t
|
||||
|
||||
// The version directive.
|
||||
version_directive *yaml_version_directive_t
|
||||
|
||||
// The list of tag directives.
|
||||
tag_directives_data []yaml_tag_directive_t
|
||||
tag_directives_start int // The beginning of the tag directives list.
|
||||
tag_directives_end int // The end of the tag directives list.
|
||||
|
||||
start_implicit int // Is the document start indicator implicit?
|
||||
end_implicit int // Is the document end indicator implicit?
|
||||
|
||||
// The start/end of the document.
|
||||
start_mark, end_mark yaml_mark_t
|
||||
}
|
||||
|
||||
// The prototype of a read handler.
|
||||
//
|
||||
// The read handler is called when the parser needs to read more bytes from the
|
||||
// source. The handler should write not more than size bytes to the buffer.
|
||||
// The number of written bytes should be set to the size_read variable.
|
||||
//
|
||||
// [in,out] data A pointer to an application data specified by
|
||||
// yaml_parser_set_input().
|
||||
// [out] buffer The buffer to write the data from the source.
|
||||
// [in] size The size of the buffer.
|
||||
// [out] size_read The actual number of bytes read from the source.
|
||||
//
|
||||
// On success, the handler should return 1. If the handler failed,
|
||||
// the returned value should be 0. On EOF, the handler should set the
|
||||
// size_read to 0 and return 1.
|
||||
type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
|
||||
|
||||
// This structure holds information about a potential simple key.
|
||||
type yaml_simple_key_t struct {
|
||||
possible bool // Is a simple key possible?
|
||||
required bool // Is a simple key required?
|
||||
token_number int // The number of the token.
|
||||
mark yaml_mark_t // The position mark.
|
||||
}
|
||||
|
||||
// The states of the parser.
|
||||
type yaml_parser_state_t int
|
||||
|
||||
const (
|
||||
yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
|
||||
|
||||
yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document.
|
||||
yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START.
|
||||
yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document.
|
||||
yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END.
|
||||
yaml_PARSE_BLOCK_NODE_STATE // Expect a block node.
|
||||
yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
|
||||
yaml_PARSE_FLOW_NODE_STATE // Expect a flow node.
|
||||
yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence.
|
||||
yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence.
|
||||
yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence.
|
||||
yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
|
||||
yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key.
|
||||
yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value.
|
||||
yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence.
|
||||
yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence.
|
||||
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping.
|
||||
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
|
||||
yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry.
|
||||
yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
|
||||
yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
|
||||
yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
|
||||
yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping.
|
||||
yaml_PARSE_END_STATE // Expect nothing.
|
||||
)
|
||||
|
||||
func (ps yaml_parser_state_t) String() string {
|
||||
switch ps {
|
||||
case yaml_PARSE_STREAM_START_STATE:
|
||||
return "yaml_PARSE_STREAM_START_STATE"
|
||||
case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
|
||||
return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
|
||||
case yaml_PARSE_DOCUMENT_START_STATE:
|
||||
return "yaml_PARSE_DOCUMENT_START_STATE"
|
||||
case yaml_PARSE_DOCUMENT_CONTENT_STATE:
|
||||
return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
|
||||
case yaml_PARSE_DOCUMENT_END_STATE:
|
||||
return "yaml_PARSE_DOCUMENT_END_STATE"
|
||||
case yaml_PARSE_BLOCK_NODE_STATE:
|
||||
return "yaml_PARSE_BLOCK_NODE_STATE"
|
||||
case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
|
||||
return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
|
||||
case yaml_PARSE_FLOW_NODE_STATE:
|
||||
return "yaml_PARSE_FLOW_NODE_STATE"
|
||||
case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
|
||||
return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
|
||||
case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
|
||||
return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
|
||||
case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
|
||||
return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
|
||||
case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
|
||||
return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
|
||||
case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
|
||||
return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
|
||||
case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
|
||||
return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
|
||||
case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
|
||||
return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
|
||||
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
|
||||
return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
|
||||
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
|
||||
return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
|
||||
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
|
||||
return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
|
||||
case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
|
||||
return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
|
||||
case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
|
||||
return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
|
||||
case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
|
||||
return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
|
||||
case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
|
||||
return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
|
||||
case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
|
||||
return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
|
||||
case yaml_PARSE_END_STATE:
|
||||
return "yaml_PARSE_END_STATE"
|
||||
}
|
||||
return "<unknown parser state>"
|
||||
}
|
||||
|
||||
// This structure holds aliases data.
|
||||
type yaml_alias_data_t struct {
|
||||
anchor []byte // The anchor.
|
||||
index int // The node id.
|
||||
mark yaml_mark_t // The anchor mark.
|
||||
}
|
||||
|
||||
// The parser structure.
|
||||
//
|
||||
// All members are internal. Manage the structure using the
|
||||
// yaml_parser_ family of functions.
|
||||
type yaml_parser_t struct {
|
||||
|
||||
// Error handling
|
||||
|
||||
error yaml_error_type_t // Error type.
|
||||
|
||||
problem string // Error description.
|
||||
|
||||
// The byte about which the problem occurred.
|
||||
problem_offset int
|
||||
problem_value int
|
||||
problem_mark yaml_mark_t
|
||||
|
||||
// The error context.
|
||||
context string
|
||||
context_mark yaml_mark_t
|
||||
|
||||
// Reader stuff
|
||||
|
||||
read_handler yaml_read_handler_t // Read handler.
|
||||
|
||||
input_reader io.Reader // File input data.
|
||||
input []byte // String input data.
|
||||
input_pos int
|
||||
|
||||
eof bool // EOF flag
|
||||
|
||||
buffer []byte // The working buffer.
|
||||
buffer_pos int // The current position of the buffer.
|
||||
|
||||
unread int // The number of unread characters in the buffer.
|
||||
|
||||
raw_buffer []byte // The raw buffer.
|
||||
raw_buffer_pos int // The current position of the buffer.
|
||||
|
||||
encoding yaml_encoding_t // The input encoding.
|
||||
|
||||
offset int // The offset of the current position (in bytes).
|
||||
mark yaml_mark_t // The mark of the current position.
|
||||
|
||||
// Scanner stuff
|
||||
|
||||
stream_start_produced bool // Have we started to scan the input stream?
|
||||
stream_end_produced bool // Have we reached the end of the input stream?
|
||||
|
||||
flow_level int // The number of unclosed '[' and '{' indicators.
|
||||
|
||||
tokens []yaml_token_t // The tokens queue.
|
||||
tokens_head int // The head of the tokens queue.
|
||||
tokens_parsed int // The number of tokens fetched from the queue.
|
||||
token_available bool // Does the tokens queue contain a token ready for dequeueing.
|
||||
|
||||
indent int // The current indentation level.
|
||||
indents []int // The indentation levels stack.
|
||||
|
||||
simple_key_allowed bool // May a simple key occur at the current position?
|
||||
simple_keys []yaml_simple_key_t // The stack of simple keys.
|
||||
|
||||
// Parser stuff
|
||||
|
||||
state yaml_parser_state_t // The current parser state.
|
||||
states []yaml_parser_state_t // The parser states stack.
|
||||
marks []yaml_mark_t // The stack of marks.
|
||||
tag_directives []yaml_tag_directive_t // The list of TAG directives.
|
||||
|
||||
// Dumper stuff
|
||||
|
||||
aliases []yaml_alias_data_t // The alias data.
|
||||
|
||||
document *yaml_document_t // The currently parsed document.
|
||||
}
|
||||
|
||||
// Emitter Definitions
|
||||
|
||||
// The prototype of a write handler.
|
||||
//
|
||||
// The write handler is called when the emitter needs to flush the accumulated
|
||||
// characters to the output. The handler should write @a size bytes of the
|
||||
// @a buffer to the output.
|
||||
//
|
||||
// @param[in,out] data A pointer to an application data specified by
|
||||
// yaml_emitter_set_output().
|
||||
// @param[in] buffer The buffer with bytes to be written.
|
||||
// @param[in] size The size of the buffer.
|
||||
//
|
||||
// @returns On success, the handler should return @c 1. If the handler failed,
|
||||
// the returned value should be @c 0.
|
||||
//
|
||||
type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
|
||||
|
||||
type yaml_emitter_state_t int
|
||||
|
||||
// The emitter states.
|
||||
const (
|
||||
// Expect STREAM-START.
|
||||
yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
|
||||
|
||||
yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END.
|
||||
yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END.
|
||||
yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document.
|
||||
yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END.
|
||||
yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence.
|
||||
yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence.
|
||||
yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
|
||||
yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
|
||||
yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping.
|
||||
yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
|
||||
yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence.
|
||||
yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence.
|
||||
yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
|
||||
yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping.
|
||||
yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
|
||||
yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping.
|
||||
yaml_EMIT_END_STATE // Expect nothing.
|
||||
)
|
||||
|
||||
// The emitter structure.
|
||||
//
|
||||
// All members are internal. Manage the structure using the @c yaml_emitter_
|
||||
// family of functions.
|
||||
type yaml_emitter_t struct {
|
||||
|
||||
// Error handling
|
||||
|
||||
error yaml_error_type_t // Error type.
|
||||
problem string // Error description.
|
||||
|
||||
// Writer stuff
|
||||
|
||||
write_handler yaml_write_handler_t // Write handler.
|
||||
|
||||
output_buffer *[]byte // String output data.
|
||||
output_writer io.Writer // File output data.
|
||||
|
||||
buffer []byte // The working buffer.
|
||||
buffer_pos int // The current position of the buffer.
|
||||
|
||||
raw_buffer []byte // The raw buffer.
|
||||
raw_buffer_pos int // The current position of the buffer.
|
||||
|
||||
encoding yaml_encoding_t // The stream encoding.
|
||||
|
||||
// Emitter stuff
|
||||
|
||||
canonical bool // If the output is in the canonical style?
|
||||
best_indent int // The number of indentation spaces.
|
||||
best_width int // The preferred width of the output lines.
|
||||
unicode bool // Allow unescaped non-ASCII characters?
|
||||
line_break yaml_break_t // The preferred line break.
|
||||
|
||||
state yaml_emitter_state_t // The current emitter state.
|
||||
states []yaml_emitter_state_t // The stack of states.
|
||||
|
||||
events []yaml_event_t // The event queue.
|
||||
events_head int // The head of the event queue.
|
||||
|
||||
indents []int // The stack of indentation levels.
|
||||
|
||||
tag_directives []yaml_tag_directive_t // The list of tag directives.
|
||||
|
||||
indent int // The current indentation level.
|
||||
|
||||
flow_level int // The current flow level.
|
||||
|
||||
root_context bool // Is it the document root context?
|
||||
sequence_context bool // Is it a sequence context?
|
||||
mapping_context bool // Is it a mapping context?
|
||||
simple_key_context bool // Is it a simple mapping key context?
|
||||
|
||||
line int // The current line.
|
||||
column int // The current column.
|
||||
whitespace bool // If the last character was a whitespace?
|
||||
indention bool // If the last character was an indentation character (' ', '-', '?', ':')?
|
||||
open_ended bool // If an explicit document end is required?
|
||||
|
||||
// Anchor analysis.
|
||||
anchor_data struct {
|
||||
anchor []byte // The anchor value.
|
||||
alias bool // Is it an alias?
|
||||
}
|
||||
|
||||
// Tag analysis.
|
||||
tag_data struct {
|
||||
handle []byte // The tag handle.
|
||||
suffix []byte // The tag suffix.
|
||||
}
|
||||
|
||||
// Scalar analysis.
|
||||
scalar_data struct {
|
||||
value []byte // The scalar value.
|
||||
multiline bool // Does the scalar contain line breaks?
|
||||
flow_plain_allowed bool // Can the scalar be expessed in the flow plain style?
|
||||
block_plain_allowed bool // Can the scalar be expressed in the block plain style?
|
||||
single_quoted_allowed bool // Can the scalar be expressed in the single quoted style?
|
||||
block_allowed bool // Can the scalar be expressed in the literal or folded styles?
|
||||
style yaml_scalar_style_t // The output style.
|
||||
}
|
||||
|
||||
// Dumper stuff
|
||||
|
||||
opened bool // If the stream was already opened?
|
||||
closed bool // If the stream was already closed?
|
||||
|
||||
// The information associated with the document nodes.
|
||||
anchors *struct {
|
||||
references int // The number of references.
|
||||
anchor int // The anchor id.
|
||||
serialized bool // If the node has been emitted?
|
||||
}
|
||||
|
||||
last_anchor_id int // The last assigned anchor id.
|
||||
|
||||
document *yaml_document_t // The currently emitted document.
|
||||
}
|
||||
@ -0,0 +1,173 @@
|
||||
package yaml
|
||||
|
||||
const (
|
||||
// The size of the input raw buffer.
|
||||
input_raw_buffer_size = 512
|
||||
|
||||
// The size of the input buffer.
|
||||
// It should be possible to decode the whole raw buffer.
|
||||
input_buffer_size = input_raw_buffer_size * 3
|
||||
|
||||
// The size of the output buffer.
|
||||
output_buffer_size = 128
|
||||
|
||||
// The size of the output raw buffer.
|
||||
// It should be possible to encode the whole output buffer.
|
||||
output_raw_buffer_size = (output_buffer_size*2 + 2)
|
||||
|
||||
// The size of other stacks and queues.
|
||||
initial_stack_size = 16
|
||||
initial_queue_size = 16
|
||||
initial_string_size = 16
|
||||
)
|
||||
|
||||
// Check if the character at the specified position is an alphabetical
|
||||
// character, a digit, '_', or '-'.
|
||||
func is_alpha(b []byte, i int) bool {
|
||||
return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is a digit.
|
||||
func is_digit(b []byte, i int) bool {
|
||||
return b[i] >= '0' && b[i] <= '9'
|
||||
}
|
||||
|
||||
// Get the value of a digit.
|
||||
func as_digit(b []byte, i int) int {
|
||||
return int(b[i]) - '0'
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is a hex-digit.
|
||||
func is_hex(b []byte, i int) bool {
|
||||
return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
|
||||
}
|
||||
|
||||
// Get the value of a hex-digit.
|
||||
func as_hex(b []byte, i int) int {
|
||||
bi := b[i]
|
||||
if bi >= 'A' && bi <= 'F' {
|
||||
return int(bi) - 'A' + 10
|
||||
}
|
||||
if bi >= 'a' && bi <= 'f' {
|
||||
return int(bi) - 'a' + 10
|
||||
}
|
||||
return int(bi) - '0'
|
||||
}
|
||||
|
||||
// Check if the character is ASCII.
|
||||
func is_ascii(b []byte, i int) bool {
|
||||
return b[i] <= 0x7F
|
||||
}
|
||||
|
||||
// Check if the character at the start of the buffer can be printed unescaped.
|
||||
func is_printable(b []byte, i int) bool {
|
||||
return ((b[i] == 0x0A) || // . == #x0A
|
||||
(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
|
||||
(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
|
||||
(b[i] > 0xC2 && b[i] < 0xED) ||
|
||||
(b[i] == 0xED && b[i+1] < 0xA0) ||
|
||||
(b[i] == 0xEE) ||
|
||||
(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
|
||||
!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
|
||||
!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is NUL.
|
||||
func is_z(b []byte, i int) bool {
|
||||
return b[i] == 0x00
|
||||
}
|
||||
|
||||
// Check if the beginning of the buffer is a BOM.
|
||||
func is_bom(b []byte, i int) bool {
|
||||
return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is space.
|
||||
func is_space(b []byte, i int) bool {
|
||||
return b[i] == ' '
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is tab.
|
||||
func is_tab(b []byte, i int) bool {
|
||||
return b[i] == '\t'
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is blank (space or tab).
|
||||
func is_blank(b []byte, i int) bool {
|
||||
//return is_space(b, i) || is_tab(b, i)
|
||||
return b[i] == ' ' || b[i] == '\t'
|
||||
}
|
||||
|
||||
// Check if the character at the specified position is a line break.
|
||||
func is_break(b []byte, i int) bool {
|
||||
return (b[i] == '\r' || // CR (#xD)
|
||||
b[i] == '\n' || // LF (#xA)
|
||||
b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
|
||||
}
|
||||
|
||||
func is_crlf(b []byte, i int) bool {
|
||||
return b[i] == '\r' && b[i+1] == '\n'
|
||||
}
|
||||
|
||||
// Check if the character is a line break or NUL.
|
||||
func is_breakz(b []byte, i int) bool {
|
||||
//return is_break(b, i) || is_z(b, i)
|
||||
return ( // is_break:
|
||||
b[i] == '\r' || // CR (#xD)
|
||||
b[i] == '\n' || // LF (#xA)
|
||||
b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
|
||||
// is_z:
|
||||
b[i] == 0)
|
||||
}
|
||||
|
||||
// Check if the character is a line break, space, or NUL.
|
||||
func is_spacez(b []byte, i int) bool {
|
||||
//return is_space(b, i) || is_breakz(b, i)
|
||||
return ( // is_space:
|
||||
b[i] == ' ' ||
|
||||
// is_breakz:
|
||||
b[i] == '\r' || // CR (#xD)
|
||||
b[i] == '\n' || // LF (#xA)
|
||||
b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
|
||||
b[i] == 0)
|
||||
}
|
||||
|
||||
// Check if the character is a line break, space, tab, or NUL.
|
||||
func is_blankz(b []byte, i int) bool {
|
||||
//return is_blank(b, i) || is_breakz(b, i)
|
||||
return ( // is_blank:
|
||||
b[i] == ' ' || b[i] == '\t' ||
|
||||
// is_breakz:
|
||||
b[i] == '\r' || // CR (#xD)
|
||||
b[i] == '\n' || // LF (#xA)
|
||||
b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
|
||||
b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
|
||||
b[i] == 0)
|
||||
}
|
||||
|
||||
// Determine the width of the character.
|
||||
func width(b byte) int {
|
||||
// Don't replace these by a switch without first
|
||||
// confirming that it is being inlined.
|
||||
if b&0x80 == 0x00 {
|
||||
return 1
|
||||
}
|
||||
if b&0xE0 == 0xC0 {
|
||||
return 2
|
||||
}
|
||||
if b&0xF0 == 0xE0 {
|
||||
return 3
|
||||
}
|
||||
if b&0xF8 == 0xF0 {
|
||||
return 4
|
||||
}
|
||||
return 0
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue