package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?im)^[+-]?(?!\.(?!\d)|$)\d*(?:\.\d*)?(?:(?<=[\d.])e[+-]?\d+)?$`)
var str = `0
.
.0
0.
0.0
1
123456.789
e123
1e4
1e4.5
1.4e4
1.4
1.4e
1.4e0
1.e4
.e4
0.e4
-
1e-4
1e+4
1e-
1e+`
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/