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49 lines
2.2 KiB
Go
49 lines
2.2 KiB
Go
// Package codabar can create Codabar barcodes
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package codabar
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import (
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"fmt"
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"regexp"
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"github.com/boombuler/barcode"
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"github.com/boombuler/barcode/utils"
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)
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var encodingTable = map[rune][]bool{
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'0': []bool{true, false, true, false, true, false, false, true, true},
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'1': []bool{true, false, true, false, true, true, false, false, true},
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'2': []bool{true, false, true, false, false, true, false, true, true},
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'3': []bool{true, true, false, false, true, false, true, false, true},
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'4': []bool{true, false, true, true, false, true, false, false, true},
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'5': []bool{true, true, false, true, false, true, false, false, true},
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'6': []bool{true, false, false, true, false, true, false, true, true},
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'7': []bool{true, false, false, true, false, true, true, false, true},
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'8': []bool{true, false, false, true, true, false, true, false, true},
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'9': []bool{true, true, false, true, false, false, true, false, true},
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'-': []bool{true, false, true, false, false, true, true, false, true},
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'$': []bool{true, false, true, true, false, false, true, false, true},
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':': []bool{true, true, false, true, false, true, true, false, true, true},
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'/': []bool{true, true, false, true, true, false, true, false, true, true},
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'.': []bool{true, true, false, true, true, false, true, true, false, true},
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'+': []bool{true, false, true, true, false, false, true, true, false, false, true, true},
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'A': []bool{true, false, true, true, false, false, true, false, false, true},
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'B': []bool{true, false, true, false, false, true, false, false, true, true},
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'C': []bool{true, false, false, true, false, false, true, false, true, true},
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'D': []bool{true, false, true, false, false, true, true, false, false, true},
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}
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// Encode creates a codabar barcode for the given content
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func Encode(content string) (barcode.Barcode, error) {
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checkValid, _ := regexp.Compile(`[ABCD][0123456789\-\$\:/\.\+]*[ABCD]$`)
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if content == "!" || checkValid.ReplaceAllString(content, "!") != "!" {
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return nil, fmt.Errorf("can not encode \"%s\"", content)
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}
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resBits := new(utils.BitList)
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for i, r := range content {
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if i > 0 {
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resBits.AddBit(false)
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}
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resBits.AddBit(encodingTable[r]...)
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}
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return utils.New1DCode(barcode.TypeCodabar, content, resBits), nil
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}
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