package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?sm) (?=
({%.if
(?:
(?>
(?:
(?! {%.if | endif.%}) .
)+
)*
| (?1)
)*
endif.%})
)
(?1)`)
var str = `{% if something %}
----------------
{% if something %}
DEEPER
{% endif %}
{% irgendwas %}
{% if something %}
DEEPER
{% if something %}
DEEPEST
{% endif %}
DEEPER
{% endif %}
---- endif ----
{% endif %}
kjafgnkajngkjalkjg
{% if something %}
++++++++++++++++
{% if something %}
DEEPER
{% endif %}
{% irgendwas %}
{% if something %}
DEEPER
{% if something %}
DEEPEST
{% endif %}
DEEPER
{% endif %}
++++ endif ++++
{% endif %}
`
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/