Regexer

Simple go package to return regexp matches on a channel using an io.Writer interface.

• Handles buffering of incoming data, and destruction of unmatched data
• io.Writer interface
• Returns [][]byte or []string using BytesToString helper

Usage

Create a regexer using a compiled regexp

r := NewRegexer(regexp.MustCompile(`(\w+)`))

Get results by reading the C channel, relying on the channel closing to exit the loop, and using the BytesToString helper to convert the results to string from the default []byte

go func() {
	for m := range r.C {
		t.Log(BytesToString(m))
	}
}()

Send data to the regxer using the io.Writer Write method

r.Write([]byte("This shouldn't match"))

Or for example from a file

f, err := os.Open("words.txt")
if err != nil {
	t.Fatal("Unable to open words.txt:", err)
}
defer f.Close()
_, err = io.Copy(r, f)

See the regexer_test.go file for full examples