package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?:\b(?=\w)|\B(?!\w))\(*\b[CDEFGAB](?:b|bb)*(?:\+|\#{1,2}|dim|sus|maj|min|aug|[mM°0-9])*\(?[\d\/]*\)?(?:[CDEFGAB](?:b|bb)*(?:\#{1,2}|dim|sus|maj|min|aug|[mM°0-9])*[\d\/]*)*\)*(?:\b(?<=\w)|\B(?<!\w))`)
var str = `F#
Angel eyes,
G#m
Why won’t you let me apologise?
Foul`
var substitution = "<span class="_c">$1</span>"
fmt.Println(re.ReplaceAllString(str, substitution))
}
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/