added cli example

README.md

@@ -1,6 +1,7 @@
 Go port of the POCSAG::Encode Perl module.
 
 Example usage
+
 ```
 package main
 

examples/cli/main.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	pc "github.com/kgolding/go-pocsagencode"
+)
+
+func main() {
+	if len(os.Args) != 3 {
+		fmt.Printf("Usage: %s <pager addr> <text message>\ne.g. %s 13100100 'Hello world!'\n", os.Args[0], os.Args[0])
+		os.Exit(1)
+	}
+	addr, err := strconv.Atoi(os.Args[1])
+	if err != nil {
+		fmt.Println("Invalid pager addr - must be a number")
+		os.Exit(2)
+	}
+	messages := []*pc.Message{
+		&pc.Message{
+			Addr:    uint32(addr),
+			Content: os.Args[2],
+		},
+	}
+	burst, _ := pc.Generate(messages)
+
+	binStrs := []string{}
+	for _, b := range burst.Bytes() {
+		binStrs = append(binStrs, fmt.Sprintf("0b%b", b))
+	}
+	fmt.Printf("Message: %s\n\n", burst.String())
+	fmt.Printf("Hex bytes: % X\n\n", burst.Bytes())
+	fmt.Printf("Binary: %s\n\n", strings.Join(binStrs, ", "))
+}

pocsagencode_test.go

@@ -1,6 +1,8 @@
 package pocsagencode
 
 import (
+	"fmt"
+	"strings"
 	"testing"
 )
 
@@ -35,4 +37,9 @@ func Test_Encode(t *testing.T) {
 	}
 	t.Log(enc)
 	t.Log(enc.Bytes())
+	binStrs := []string{}
+	for _, b := range enc.Bytes() {
+		binStrs = append(binStrs, fmt.Sprintf("0b%b", b))
+	}
+	t.Log(strings.Join(binStrs, ", "))
 }