https://regex101.com/

簡單記鎑一下最近在專案上需要利用 regex 來進行字串的拆解

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cfg:/etc/config/a.conf = 0
Build=20160331
Version = 2.2.13
Date = 2016-06-28
RC_Number = 181
Enable=
Status = complete
ePassword = [email protected]+yXOlw==
Server Type = 5
Check External IP = 10
Enable = TRUE

需要將將上述的 conf 拆分成 key, value，意外發現了一個很常好用的網站 Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript，可以很容易的在線上即時的進行測試，更棒的地方是他還是可以產出程式碼

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package main
import (
    "regexp"
    "fmt"
)
func main() {
    var re = regexp.MustCompile(`([^=]*)=(.*)`)
    var str = `cfg:/etc/config/a.conf = 0
Build=20160331
Version = 2.2.13
Date = 2016-06-28
RC_Number = 181
Enable=
Status = complete
ePassword = [email protected]+yXOlw==
Server Type = 5
Check External IP = 10
Enable = TRUEÅ`
    
    for i, match := range re.FindAllString(str, -1) {
        fmt.Println(match, "found at index", i)
    }
}

Reference