package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?:[0-3](?:\.[0-9]+)?|4(?:\.[0-4][0-9]*)?|4\.50*|-[0-9]+(?:\.[0-9]+)?)$`)
var str = `-1
-1.23
-0.005
0.123
1
1.0
1.1
2.2
3.3
4
4.4
4.499999999
4.5
4.50000
4.500001
5
10
10.123`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/