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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)$
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
Matches "Go", "Python" or "Java".
Matches a word or a 4-digit postal code.
Matches a string starting or ending with "from" or "to".
Notes
,
Operator. If grouping is required, use brackets ()
.
If there is no expression after the
The
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