const regexp/syntax.EmptyBeginLine

7 uses

	regexp/syntax (current package)
		compile.go#L115: 		return c.empty(EmptyBeginLine)
		prog.go#L65: 	EmptyBeginLine EmptyOp = 1 << iota
		prog.go#L86: 		op |= EmptyBeginLine
		prog.go#L88: 		op |= EmptyBeginText | EmptyBeginLine
		prog.go#L265: 	case EmptyBeginLine:

	regexp
		exec.go#L133: 	if op&syntax.EmptyBeginLine != 0 {
		exec.go#L137: 		op &^= syntax.EmptyBeginLine