summaryrefslogtreecommitdiff
path: root/vendor/github.com/boombuler/barcode/code128/encode.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/boombuler/barcode/code128/encode.go')
-rw-r--r--vendor/github.com/boombuler/barcode/code128/encode.go130
1 files changed, 0 insertions, 130 deletions
diff --git a/vendor/github.com/boombuler/barcode/code128/encode.go b/vendor/github.com/boombuler/barcode/code128/encode.go
deleted file mode 100644
index 757347e..0000000
--- a/vendor/github.com/boombuler/barcode/code128/encode.go
+++ /dev/null
@@ -1,130 +0,0 @@
-// Package code128 can create Code128 barcodes
-package code128
-
-import (
- "fmt"
- "strings"
- "unicode/utf8"
-
- "github.com/boombuler/barcode"
- "github.com/boombuler/barcode/utils"
-)
-
-func strToRunes(str string) []rune {
- result := make([]rune, utf8.RuneCountInString(str))
- i := 0
- for _, r := range str {
- result[i] = r
- i++
- }
- return result
-}
-
-func shouldUseCTable(nextRunes []rune, curEncoding byte) bool {
- requiredDigits := 4
- if curEncoding == startCSymbol {
- requiredDigits = 2
- }
- if len(nextRunes) < requiredDigits {
- return false
- }
- for i := 0; i < requiredDigits; i++ {
- if i%2 == 0 && nextRunes[i] == FNC1 {
- requiredDigits++
- if len(nextRunes) < requiredDigits {
- return false
- }
- continue
- }
- if nextRunes[i] < '0' || nextRunes[i] > '9' {
- return false
- }
- }
- return true
-}
-
-func getCodeIndexList(content []rune) *utils.BitList {
- result := new(utils.BitList)
- curEncoding := byte(0)
- for i := 0; i < len(content); i++ {
- if shouldUseCTable(content[i:], curEncoding) {
- if curEncoding != startCSymbol {
- if curEncoding == byte(0) {
- result.AddByte(startCSymbol)
- } else {
- result.AddByte(codeCSymbol)
- }
- curEncoding = startCSymbol
- }
- if content[i] == FNC1 {
- result.AddByte(102)
- } else {
-
- idx := (content[i] - '0') * 10
- i++
- idx = idx + (content[i] - '0')
- result.AddByte(byte(idx))
- }
- } else {
- if curEncoding != startBSymbol {
- if curEncoding == byte(0) {
- result.AddByte(startBSymbol)
- } else {
- result.AddByte(codeBSymbol)
- }
- curEncoding = startBSymbol
- }
- var idx int
- switch content[i] {
- case FNC1:
- idx = 102
- break
- case FNC2:
- idx = 97
- break
- case FNC3:
- idx = 96
- break
- case FNC4:
- idx = 100
- break
- default:
- idx = strings.IndexRune(bTable, content[i])
- break
- }
-
- if idx < 0 {
- return nil
- }
- result.AddByte(byte(idx))
- }
- }
- return result
-}
-
-// Encode creates a Code 128 barcode for the given content
-func Encode(content string) (barcode.Barcode, error) {
- contentRunes := strToRunes(content)
- if len(contentRunes) <= 0 || len(contentRunes) > 80 {
- return nil, fmt.Errorf("content length should be between 1 and 80 runes but got %d", len(contentRunes))
- }
- idxList := getCodeIndexList(contentRunes)
-
- if idxList == nil {
- return nil, fmt.Errorf("\"%s\" could not be encoded", content)
- }
-
- result := new(utils.BitList)
- sum := 0
- for i, idx := range idxList.GetBytes() {
- if i == 0 {
- sum = int(idx)
- } else {
- sum += i * int(idx)
- }
- result.AddBit(encodingTable[idx]...)
- }
- result.AddBit(encodingTable[sum%103]...)
- result.AddBit(encodingTable[stopSymbol]...)
- return utils.New1DCode("Code 128", content, result, sum%103), nil
-}