package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?i)UPDATE[ \t\n]{1,}(fact)(.*)\n(from)?([ \t\n]{1,})?(.*)?\n*set[ \n\t]{1,}(coloana)[ \t\n]*=[ \t\n]*(ifnull\(\s*)*([\w\d]*)([\ ,'\w\n\t)(\n=.]*);`)
var str = `update fact,x2,asdasjsdjbmfeweoewo
from asdas,asaskdvd
set coloana = ifnull( ifnull( col2,'Test'), 'Test2')
where c = c.s.
and asdsa = asda.asda;
UPdate fact,x2
set coloana = ifnull(col2,'Test')
where c = c.s.;
update
fact,x2
from
asdas
set coloana = ifnull(col2,'Test')
where c = c.s.
and asdsa = asda.asda;
update fact,x2
from asdas
set coloana = (select x from y where x.fg = x2.asfds)
where c = c.s.
and asdsa = asda.asda;`
if len(re.FindStringIndex(str)) > 0 {
fmt.Println(re.FindString(str),"found at index",re.FindStringIndex(str)[0])
}
}
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/