package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^(?:(?:[-\w\d?*.+|{}\\\/\s<>\]])|(?:\\[\[\]()])|^[\[(].+?[\])])+\s*(#+.*)$`)
var str = `(\h{8}-\h{4}-\h{4}-\h{4}-\h{12}) # match UUID (no square brackets at all)
([A-Za-z_][A-Za-z0-9_]*) # valid Python identifier (paired unescaped square brackets)
(\||\[|\?) # match some stuff (escaped opening square bracket)
[A-Za-z # letters
0-9_-.] ### stuff
(\[ # works if escaped [ is in group
\[ # and on its own...
if | pass | raise | return | try | while | with # this should be a comment
\h # a hex digit`
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/