Golang regexp/syntax.EmptyOpContext() function example

package regexp/syntax

Golang regexp/syntax.EmptyOpContext() function usage example

 package main

 import (
  "fmt"
  "regexp/syntax"
 )

 func main() {

  var r1 rune = -1

  for _, r2 := range "foo, bar, baz\nsome input text.\n" {
 empOp := syntax.EmptyOpContext(r1, r2)

 fmt.Println(empOp)

 r1 = r2
  }

 }

Reference :

http://golang.org/pkg/regexp/syntax/#EmptyOpContext