package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^-0$|^-?0\d+(?:\.\d+)?$|^(-?\d+(?:.\d{1,4})?)$`)
var str = `0
0.1
0.12
0.123
0.1234
1
1.1
123456789.1234
-0.1
-0.12
-0.123
-0.1234
-1
-1.1
-123456789.1234
-
+
-0
0123456789.1234
007
+0.1
+123456789.1234
.1234
1.`
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/