TCOBSv1Encode added

cmd/TCOBSv1Encode/main.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+
+	tcobs "github.com/rokath/tcobs/Cv2"
+	"github.com/spf13/afero"
+)
+
+var (
+	// do not initialize, goreleaser will handle that
+	version string
+
+	// do not initialize, goreleaser will handle that
+	commit string
+
+	// do not initialize, goreleaser will handle that
+	date string
+)
+
+// main is the entry point.
+func main() {
+	fSys := &afero.Afero{Fs: afero.NewOsFs()} // os.DirFS("")
+	doit(os.Stdout, fSys)
+}
+
+func doit(w io.Writer, fSys *afero.Afero) {
+
+	if len(os.Args) != 1 {
+		fmt.Fprintln(w, version, commit, date)
+		fmt.Fprintln(w, "Feed with a space separated byte sequence to convert it in a TCOBSv1 sequence.")
+		fmt.Fprintln(w, "Example: `echo 0xaa 123 0b1010 44 44 44 | TCOBSv1Encode` will return `170 123 10 44 132`")
+		return
+	}
+
+	var i []byte
+	o := make([]byte, 16*1024)
+	var pos int
+	for {
+		var n byte
+		_, err := fmt.Scan(&n)
+		if err == io.EOF {
+			if len(i)+31/len(i) > len(o) {
+				log.Fatal("len of internal buffer too small")
+			}
+			count := tcobs.CEncode(o, i)
+			o = o[:count]
+			for _, b := range o {
+				fmt.Fprintf(w, "%d ", b)
+			}
+			return
+		}
+		if err != nil {
+			log.Fatal(err, " at position ", pos)
+		}
+		i = append(i, n)
+		pos++
+	}
+}

go.mod

@@ -3,12 +3,14 @@ module github.com/rokath/tcobs
 go 1.19
 
 require (
+	github.com/spf13/afero v1.9.5
 	github.com/stretchr/testify v1.8.1
 	github.com/tj/assert v0.0.3
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	golang.org/x/text v0.3.7 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )