Regexp

---

examples/regex2/regex2.go

package main

import (
    "fmt"
    "regexp"
)

func main() {
    text := "In this text there is a number 123456 and an age: 42 and another number 78"
    //    var match bool
    var res []byte
    //    var plex [][]byte
    var firstSubmtach [][]byte
    var allSubmtaches [][][]byte
    //    var str []string

    getAge := regexp.MustCompile(`age: (\d+)`)
    res = getAge.Find([]byte(text))
    fmt.Printf("%q\n", res)

    fmt.Println()
    firstSubmtach = getAge.FindSubmatch([]byte(text))
    fmt.Printf("%q\n", firstSubmtach)
    fmt.Printf("%q\n", firstSubmtach[1])

    fmt.Println()
    allSubmtaches = getAge.FindAllSubmatch([]byte(text), -1)
    fmt.Printf("%q\n", allSubmtaches)
    fmt.Printf("%q\n", allSubmtaches[0][1])
}

"age: 42"

["age: 42" "42"]
"42"

[["age: 42" "42"]]
"42"