package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)((?:<p[^>]*?color: black.*?>[\S\s\n]*?<\/p>\s*<span[^>]*>)|(?:<span[^>]*?color: black.*?>[\S\s\n]*?<code))(*SKIP)(*F)|<code\s*style="background-color:\s*transparent;">`)
var str = `<html>
<p style="font-family: "verdana"; font-size: 18px; color: black; line-height: 18px; text-align: justify; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: cyan;"><span style="font-size: 13.5pt; font-family: "Verdana","sans-serif";"><code style="background-color: transparent;"><b>some text here</b></code></span></p>
<span><span style="font-size: 13.5pt; font-family: "Verdana","sans-serif"; background-color: cyan;"><code style="background-color: transparent;"><b>some text here</b></code></span>
<code style="background-color: transparent;">
<p style="font-family: "verdana"; font-size: 18px; color: cyan; line-height: 18px; text-align: justify; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: cyan;"><span style="color: black; font-size: 13.5pt; font-family: "Verdana","sans-serif";"><code style="background-color: transparent;"><b>some text here</b></code></span></p>
<span><span style="font-size: 13.5pt; font-family: "Verdana","sans-serif"; background-color: cyan;"><code style="background-color: transparent;"><b>some text here</b></code></span>
<p style="font-family: "verdana"; font-size: 18px; color: cyan; line-height: 18px; text-align: justify; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: navy;"><span style="font-size: 13.5pt; font-family: "Verdana","sans-serif";"><code style="background-color: transparent;"><b>some text here</b></code></span></p>
</html>`
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/