func countMatches(pat string, bytes []byte) int {
m := pcre.MustCompile(pat, 0).Matcher(bytes, 0)
n := 0
for f := m.Matches(); f; f = m.Match(bytes, 0) {
n++
bytes = bytes[m.Index()[1]:]
}
return n
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
bytes, err := ioutil.ReadAll(os.Stdin)
if err != nil {
fmt.Fprintf(os.Stderr, "can't read input: %s\n", err)
os.Exit(2)
}
ilen := len(bytes)
// Delete the comment lines and newlines
bytes = pcre.MustCompile("(>[^\n]+)?\n", 0).ReplaceAll(bytes, []byte{}, 0)
clen := len(bytes)
mresults := make([]chan int, len(variants))
var i int
var s string
for i, s = range variants {
ch := make(chan int)
mresults[i] = ch
go func(intch chan int, ss string) {
intch <- countMatches(ss, bytes)
}(ch, s)
}
lenresult := make(chan int)
bb := bytes
go func() {
for _, sub := range substs {
bb = pcre.MustCompile(sub.pat, 0).ReplaceAll(bb, []byte(sub.repl), 0)
}
lenresult <- len(bb)
}()
for i, s = range variants {
fmt.Printf("%s %d\n", s, <-mresults[i])
}
fmt.Printf("\n%d\n%d\n%d\n", ilen, clen, <-lenresult)
}
