From c55afd2de177f128fae6e1c52d0c56af17096258 Mon Sep 17 00:00:00 2001 From: Mikhail Osipov Date: Sat, 29 Feb 2020 00:58:01 +0300 Subject: rename module to hook --- pkg/server/hook/alpha.go | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 pkg/server/hook/alpha.go (limited to 'pkg/server/hook/alpha.go') diff --git a/pkg/server/hook/alpha.go b/pkg/server/hook/alpha.go new file mode 100644 index 0000000..d1fefcc --- /dev/null +++ b/pkg/server/hook/alpha.go @@ -0,0 +1,32 @@ +package hook + +import ( + "bufio" + "io" + "tunnel/pkg/server/queue" + "unicode" +) + +func alpha(cb func(rune) rune) Func { + return func(rq, wq queue.Q) error { + r := bufio.NewReader(rq.Reader()) + + for { + c, _, err := r.ReadRune() + if err != nil { + if err == io.EOF { + break + } + return err + } + wq <- []byte(string(cb(c))) + } + + return nil + } +} + +func init() { + registerFunc("lower", alpha(unicode.ToLower)) + registerFunc("upper", alpha(unicode.ToUpper)) +} -- cgit v1.2.3-70-g09d2