internal/bytes_to_unicode.go

@@ -1,87 +0,0 @@
-package internal
-
-import (
-	"io"
-	"strings"
-
-	"github.com/fatih/color"
-	"github.com/qpliu/qrencode-go/qrencode"
-)
-
-const (
-	Upper byte = 1 << iota
-	Lower
-)
-
-var (
-	// Got the information from https://de.wikipedia.org/wiki/Unicodeblock_Blockelemente
-	byteMapping = map[byte]rune{
-		0:             ' ',
-		Upper:         '\u2580', // UPPER HALF BLOCK
-		Lower:         '\u2584', // LOWER HALF BLOCK
-		Upper | Lower: '\u2588', // FULL BLOCK
-	}
-)
-
-func ConvertGridToUnicode(target io.Writer, source *qrencode.BitGrid) (err error) {
-	c := color.New(color.BgWhite)
-	c.Add(color.FgBlack)
-
-	writeSpaceLine := func() (n int, err error) {
-		n, err = c.Fprint(target, strings.Repeat(" ", source.Width()+2))
-		if err != nil {
-			return
-		}
-		m, err := target.Write([]byte{'\n'})
-		if err != nil {
-			return
-		}
-		n += m
-		return
-	}
-
-	if _, err = writeSpaceLine(); err != nil {
-		return
-	}
-
-	for y := 0; y < source.Height(); y += 2 {
-
-		// Go from left to right in both rows
-		line := " "
-		for x := 0; x < source.Width(); x++ {
-			var runeKey byte
-
-			// First row
-			if source.Get(x, y) {
-				runeKey |= Upper
-			}
-			if y+1 < source.Height() {
-				if source.Get(x, y+1) {
-					runeKey |= Lower
-				}
-			}
-
-			line += string(byteMapping[runeKey])
-		}
-
-		line += " "
-
-		_, err = c.Fprint(target, line)
-		if err != nil {
-			return
-		}
-
-		_, err = target.Write([]byte{'\n'})
-		if err != nil {
-			return
-		}
-	}
-
-	if err == io.EOF {
-		err = nil
-	}
-
-	_, err = writeSpaceLine()
-
-	return
-}

main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"bytes"
 	"encoding/base32"
 	"errors"
 	"fmt"
@@ -49,9 +48,6 @@ var (
 var (
 	app = kingpin.New("pixelqr", "Generates QR code from any input and displays it in your ANSI true-color compatible terminal.")
 
-	flagANSImage = app.Flag("draw", "Use ANSI drawing code using ANSImage.").
-			Default("false").
-			Bool()
 	flagECLevel = app.Flag("ec", "Sets the error correction level for the generated code.").
 			Default(ECLevel_L).
 			Enum(ECLevel_L, ECLevel_M, ECLevel_Q, ECLevel_H)
@@ -119,7 +115,7 @@ func main() {
 		if err != nil {
 			return
 		}
-		err = generateCliQR(string(input))
+		generateCliQR(string(input))
 
 	case cmdOtp.FullCommand(): // otp -> qr
 		// https://github.com/google/google-authenticator/wiki/Key-Uri-Format
@@ -153,36 +149,20 @@ func main() {
 			RawQuery: query.Encode(),
 		}
 		log.Println("Generated URL:", url.String())
-		err = generateCliQR(url.String())
+		generateCliQR(url.String())
 
 	default: // other
 		err = ErrCommandNotFound
 	}
 }
 
-func generateCliQR(input string) (err error) {
+func generateCliQR(input string) {
 	grid, err := qrencode.Encode(input, ecLevelMapping[*flagECLevel])
 	if err != nil {
 		return
 	}
 
-	var s string
-
-	if *flagANSImage {
-
-		s, err = internal.ConvertGridToANSImage(grid)
-		if err != nil {
-			return
-		}
-	} else {
-
-		w := new(bytes.Buffer)
-		err = internal.ConvertGridToUnicode(w, grid)
-		if err != nil {
-			return
-		}
-		s = string(w.Bytes())
-	}
+	s, err := internal.ConvertGridToANSImage(grid)
 
 	fmt.Println(s)