正则表达式不匹配

Question

I am trying to extract a JSON object from a custom payload.

My regex is working fine here: https://regex101.com/r/G5lBDC/1/

But Go returns no matches

re := regexp.MustCompile(`/payload:\\"(.+?)\\\\\\"\\\\/g`)
rawResponse := "version:1 response:<status:200 message:\"OK\" payload:\"{\\\"id\\\":\\\"ll2.card_4U45pAWUMCLhsu\\\",\\\"uid\\\":\\\"ll2.acc_727V8M6GjPJ9I26CqZHgxN\\\"}\\\"\\013\\022\\006ll2-cc\\032\\0019\" endorsement:<endorser:\"\
\\007PASSKIT\\022\\224\\010>"
rawJSON := re.FindStringSubmatch(rawResponse)

Go Playground https://play.golang.org/p/XRfbExNa9V

Answer 1

You can try this: ( Run here )

package main

import (
    "regexp"
    "fmt"
)

func main() {
    var re = regexp.MustCompile(`payload:\\"(\{[^\}]+\})`)
    var str = `version:1 response:<status:200 message:\"OK\" payload:\"{\\\"id\\\":\\\"ll2.card_4U45pAWUMCLhsu\\\",\\\"uid\\\":\\\"ll2.acc_727V8M6GjPJ9I26CqZHgxN\\\"}\\\"\\013\\022\\006ll2-cc\\032\\0019\" endorsement:<endorser:\"\
\\007PASSKIT\\022\\224\\010>`
    rawJSON := re.FindStringSubmatch(str)
    fmt.Println(rawJSON[1])    
}