package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(?<prefix>{[^\\}]++)(?<first_lvl_command>\\\w+(?:\[[^]]++]?({(?:[^{}]+|(?3))*+}))({(?:[^{}]+|(?3))*+})?)(?<closing_bracket>})`)
var str = `\rpl{text}{ some\com1[opts]{ some \qtyrange{100}{200}{\celsius} and }{something else \gls{abc} $1=1$ not \colortext{\red}{\underline{text}}}} but this is already braced {\qtyrange{100}{200}{\celsius}}}
`
var substitution = "$prefix {$first_lvl_command$closing_bracket}"
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/