encoding/json: Marshal cant parse chinese punctuation into key

[pwxc]

What did you do?

package main

import (
	"encoding/json"
	"fmt"
)

type JsonTest struct {

	English0 string `json:"English"`
	Chinese0 string `json:"中文"`

	English1 string `json:"English ()"`
	Chinese1 string `json:"中文 （）"`

	English2 string `json:"English ."`
	Chinese2 string `json:"中文 。"`

}

func main() {

	jsonTest := JsonTest{
		English0 : "English",
		Chinese0 : "中文",
		English1 : "English ()",
		Chinese1 : "中文 （）",
		English2 : "English .",
		Chinese2 : "中文 。",
	}


	jsonBytes, _ := json.Marshal(jsonTest)
	fmt.Println(string(jsonBytes))
}

What did you expect to see?

{
"English":"English",
"中文":"中文",
"English ()":"English ()",
"中文 （）":"中文 （）",
"English .":"English .",
"中文 。":"中文 。"
}

What did you see instead?

{
"English":"English",
"中文":"中文",
"English ()":"English ()",
"Chinese1":"中文 （）",
"English .":"English .",
"Chinese2":"中文 。"
}

[agnivade]

@pwxc - Please also mention your go version and go env for completeness.

/cc @mvdan @dsnet

[pwxc]

C:\Users\bo>go version
go version go1.10 windows/amd64

C:\Users\bo>go env
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\bo\AppData\Local\go-build
set GOEXE=.exe
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\Users\bo\go
set GORACE=
set GOROOT=D:\Go
set GOTMPDIR=
set GOTOOLDIR=D:\Go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessag
e-length=0 -fdebug-prefix-map=C:\Users\bo\AppData\Local\Temp\go-build609516982=/
tmp/go-build -gno-record-gcc-switches

[mvdan]

I'm pretty sure this is a duplicate of #22518. See https://golang.org/src/encoding/json/encode.go#L815 - not all characters are allowed in key/tag strings at the moment. That issue discusses relaxing those constraints - so you can just leave a comment in that issue.

[pwxc]

I'm pretty sure this is a duplicate of #22518. See https://golang.org/src/encoding/json/encode.go#L815 - not all characters are allowed in key/tag strings at the moment. That issue discusses relaxing those constraints - so you can just leave a comment in that issue.

Yes, this is a duplicate of #22518. I will leave a comment in that issue.