package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?<!\d|\.)\d+(?:\.\d+)?\s*?(?:mg|kg|ml|q\.s\.|ui|M|g|µg)(?!\w)`)
var str = `Examples: 0.9 mg, 9 mg, 9mg, 0.9mg
0.9mg is the approximate dosage
98 is not an acceptable number; it has no unit
9.4.4mg is not acceptable; it is formatted wrong
9.7kg is fine, but 9.7kgasdfghjkl is not`
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/