({{(media|skin) url=\\"(.*)\\"}})
   

例如,此代码:

package main

import "fmt"
import "regexp"

func main() {

    re := regexp.MustCompile(`{{(media|skin) url=.*}}`)
    stringMedia := "{{media url=\"wysiwyg/Out_story.png\"}}"
    stringSkin := "{{skin url=\"wysiwyg/Out_story.png\"}}"

    match := re.FindStringSubmatch(stringMedia)
    if len(match) != 0 {
        fmt.Printf("1. %s\n", match[1])
    }

    match = re.FindStringSubmatch(stringSkin)
    if len(match) != 0 {
        fmt.Printf("2. %s\n", match[1])
    }
}

输出

1. media
2. skin

package main

import (
    "fmt"
    "regexp"
    "strings"
)

func main() {

    re := regexp.MustCompile(`({{(media|skin) url=\\"(.*)\\"}})`)
    stringMedia := "other stuff {{media url=\"wysiwyg/Out_story.png\"}} other stuff"
    stringSkin := "other stuff {{skin url=\"wysiwyg/Out_story.png\"}} other stuff"

    match := re.FindStringSubmatch(stringMedia)
    if len(match) != 0 {
        stringMedia = strings.Replace(stringMedia, match[1], fmt.Sprintf("https://img.abc.com/xyz/%s", match[3]), -1)
        fmt.Println(stringMedia)
    }

    match = re.FindStringSubmatch(stringSkin)
    if len(match) != 0 {
        stringSkin = strings.Replace(stringSkin, match[1], fmt.Sprintf("https://img.abc.com/xyz/%s", match[3]), -1)
        fmt.Println(stringSkin)
    }
}

输出:

other stuff https://img.abc.com/xyz/wysiwyg/Out_story.png other stuff
other stuff https://img.abc.com/xyz/wysiwyg/Out_story.png other stuff

你可以自己试穿 regex-golang.appspot.com playground .