package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?ms)<(?<tagName>\w+)((>)|(.+?>))(.+?)?<\/\k<tagName>>`)
var str = `<transaction>
<id>6753322</id>
<number region="Russia">8-900-000-00-00</number>
<nonattr />
<nonattr></nonattr>
<nonattr>text</nonattr>
<attr id="1" />
<attr id="2"></attr>
<attr id="3">text</attr>
<email>
<to>to_example@gmail.com</to>
<from>from_example@gmail.com</from>
<subject>Project discussion</subject>
<body font="Verdana">Body message</body>
<date day="12" month="12" year="2018"/>
</email>
</transaction>
<number region="Russia">8-900-000-00-00</number>
<nonattr></nonattr>
<attr id="2"></attr>
<body font="Verdana">Body message</body>
<email>
<to>to_example@gmail.com</to>
<from>from_example@gmail.com</from>
<subject>Project discussion</subject>
<body font="Verdana">Body message</body>
<date day="12" month="12" year="2018"/>
</email>
`
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/