package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?=.+)(?:[1-9]\d*|0)?(?:\.\d+)?$`)
var str = `123456
123.
.
.123
123.154574
.545.4584
+1454
+487.54587
-54587.7487
.1225-
.456+
454.4+
454.455874
45.45745687687.5678`
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/