How to match multiple words or strings using Golang regular expression?

Golang regular expressions use the pipe character | to match multiple words or strings, separating each option as a logical OR expression. For example: matches "fox" or "dog": fox|dog matches "quick", "brown" or "lazy": (quick|brown|lazy) matches "Go", "Python" or "Java": Go|Python |Java matches a word or 4-digit postal code: ([a-zA-Z] |1[0-9]{3}) matches a string starting or ending with "from" or "to": (^[Ff] ro?m)|([Tt]o)$

How to use Golang regular expression to match multiple words or strings

Golang’s regular expressions provide The | (pipe character) operator is used to match multiple words or strings. The | operator separates each option into a logical OR expression.

Matching Code

import (
    "fmt"
    "regexp"
)

func main() {
    text := "The quick brown fox jumped over the lazy dog."

    // 匹配 "fox" 或 "dog"
    matched, err := regexp.MatchString("fox|dog", text)
    if err != nil {
        fmt.Println(err)
        return
    }
    // 输出：true

    // 匹配 "quick"、"brown" 或 "lazy"
    matched, err = regexp.MatchString("(quick|brown|lazy)", text)
    if err != nil {
        fmt.Println(err)
        return
    }
    // 输出：true
}

More Examples

• ##(Go|Python|Java) Matches "Go", "Python" or "Java".
• ([a-zA-Z] |1[0-9]{3}) Matches a word or a 4-digit postal code.
• (^[Ff]ro?m)|([Tt]o)$ Matches a string starting or ending with "from" or "to".

Notes

##|
• operator precedence is higher than , Operator. If grouping is required, use brackets (). If there is no expression after the
|
• operator, an error will be thrown. The
|
• operators in regular expressions also have other meanings in contexts other than string matching. Please use it with caution according to specific usage scenarios.

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