barnhill
Code 128 encoding is broken for some payloads containing "99"
In v3.0.0 and v3.0.3, Code128 generates incorrect barcodes for certain payloads. In my experience, the payloads that provoke the bug always involve the text "99". I included some examples at the bottom.
public static Image MakeBarcodeImage(string text)
{
Barcode encoder = new Barcode();
SKImage skImage = encoder.Encode(BarcodeStandard.Type.Code128, text);
Stream imageStream = skImage.Encode().AsStream();
return Image.FromStream(imageStream);
}
If I force it to use only code set B, it works fine:
SKImage skImage = encoder.Encode(BarcodeStandard.Type.Code128B, text);
If I downgrade to v2.4.0, it also works fine:
public static Image MakeBarcodeImage(string text)
{
Barcode encoder = new Barcode();
return encoder.Encode(TYPE.CODE128, text);
}
Some bad barcodes
| Input Text | Text in Resulting Barcode |
|---|---|
| Q99 | Q |
| Q990 | Q16 |
| Q991 | Q17 |
| Q992 | Q18 |
| Q993 | Q19 |
| Q994 | Q20 |
| Q995 | Q21 |
| Q996 | Q22 |
| Q997 | Q23 |
| Q998 | Q24 |
| Q999 | Q25 |
| Q9999 | Q99 |
| Q99990 | Q9916 |
| Q99991 | Q9917 |
| Q99992 | Q9918 |
| Q99993 | Q9919 |
| Q99994 | Q9920 |
| Q99995 | Q9921 |
| Q99996 | Q9922 |
| Q99997 | Q9923 |
| Q99998 | Q9924 |
| Q99999 | Q9925 |
| N0.99 | N0. |
| N1.99 | N1. |
| N10.99 | N10. |
| N100.99 | N100. |
| N101.99 | N101. |
| N102.99 | N102. |
| N103.99 | N103. |
| N104.99 | N104. |
| N105.99 | N105. |
| N106.99 | N106. |
| N107.99 | N107. |
| N108.99 | N108. |
| N109.99 | N109. |
| N11.99 | N11. |
| N110.99 | N110. |
| N111.99 | N111. |
| N112.99 | N112. |
| N113.99 | N113. |
| N114.99 | N114. |
| N115.99 | N115. |
| N116.99 | N116. |
| N117.99 | N117. |
| N118.99 | N118. |
| N119.99 | N119. |
| N12.99 | N12. |
| N120.99 | N120. |
| N121.99 | N121. |
| N122.99 | N122. |
| N123.99 | N123. |
| N124.99 | N124. |
| N125.99 | N125. |
| N126.99 | N126. |
| N127.99 | N127. |
| N128.99 | N128. |
| N129.99 | N129. |
| N13.99 | N13. |
| N130.99 | N130. |
| N131.99 | N131. |
| N132.99 | N132. |
| N133.99 | N133. |
| N134.99 | N134. |
| N135.99 | N135. |
| N136.99 | N136. |
| N137.99 | N137. |
| N138.99 | N138. |
| N139.99 | N139. |
| N14.99 | N14. |
| N140.99 | N140. |
| N141.99 | N141. |
| N142.99 | N142. |
| N143.99 | N143. |
| N144.99 | N144. |
| N145.99 | N145. |
| N146.99 | N146. |
| N147.99 | N147. |
| N148.99 | N148. |
| N149.99 | N149. |
| N15.99 | N15. |
| N16.99 | N16. |
| N17.99 | N17. |
| N18.99 | N18. |
| N19.99 | N19. |
| N2.99 | N2. |
| N20.99 | N20. |
| N21.99 | N21. |
| N22.99 | N22. |
| N23.99 | N23. |
| N24.99 | N24. |
| N25.99 | N25. |
| N26.99 | N26. |
| N27.99 | N27. |
| N28.99 | N28. |
| N29.99 | N29. |
| N3.99 | N3. |
| N30.99 | N30. |
| N31.99 | N31. |
| N32.99 | N32. |
| N33.99 | N33. |
| N34.99 | N34. |
| N35.99 | N35. |
| N36.99 | N36. |
| N37.99 | N37. |
| N38.99 | N38. |
| N39.99 | N39. |
| N4.99 | N4. |
| N40.99 | N40. |
| N41.99 | N41. |
| N42.99 | N42. |
| N43.99 | N43. |
| N44.99 | N44. |
| N45.99 | N45. |
| N46.99 | N46. |
| N47.99 | N47. |
| N48.99 | N48. |
| N49.99 | N49. |
| N5.99 | N5. |
| N50.99 | N50. |
| N51.99 | N51. |
| N52.99 | N52. |
| N53.99 | N53. |
| N54.99 | N54. |
| N55.99 | N55. |
| N56.99 | N56. |
| N57.99 | N57. |
| N58.99 | N58. |
| N59.99 | N59. |
| N6.99 | N6. |
| N60.99 | N60. |
| N61.99 | N61. |
| N62.99 | N62. |
| N63.99 | N63. |
| N64.99 | N64. |
| N65.99 | N65. |
| N66.99 | N66. |
| N67.99 | N67. |
| N68.99 | N68. |
| N69.99 | N69. |
| N7.99 | N7. |
| N70.99 | N70. |
| N71.99 | N71. |
| N72.99 | N72. |
| N73.99 | N73. |
| N74.99 | N74. |
| N75.99 | N75. |
| N76.99 | N76. |
| N77.99 | N77. |
| N78.99 | N78. |
| N79.99 | N79. |
| N8.99 | N8. |
| N80.99 | N80. |
| N81.99 | N81. |
| N82.99 | N82. |
| N83.99 | N83. |
| N84.99 | N84. |
| N85.99 | N85. |
| N86.99 | N86. |
| N87.99 | N87. |
| N88.99 | N88. |
| N89.99 | N89. |
| N9.99 | N9. |
| N90.99 | N90. |
| N91.99 | N91. |
| N92.99 | N92. |
| N93.99 | N93. |
| N94.99 | N94. |
| N95.99 | N95. |
| N96.99 | N96. |
| N97.99 | N97. |
| N98.99 | N98. |
| N99.00 | N149900 |
| N99.01 | N149901 |
| N99.02 | N149902 |
| N99.03 | N149903 |
| N99.04 | N149904 |
| N99.05 | N149905 |
| N99.06 | N149906 |
| N99.07 | N149907 |
| N99.08 | N149908 |
| N99.09 | N149909 |
| N99.10 | N149910 |
| N99.11 | N149911 |
| N99.12 | N149912 |
| N99.13 | N149913 |
| N99.14 | N149914 |
| N99.15 | N149915 |
| N99.16 | N149916 |
| N99.17 | N149917 |
| N99.18 | N149918 |
| N99.19 | N149919 |
| N99.20 | N149920 |
| N99.21 | N149921 |
| N99.22 | N149922 |
| N99.23 | N149923 |
| N99.24 | N149924 |
| N99.25 | N149925 |
| N99.26 | N149926 |
| N99.27 | N149927 |
| N99.28 | N149928 |
| N99.29 | N149929 |
| N99.30 | N149930 |
| N99.31 | N149931 |
| N99.32 | N149932 |
| N99.33 | N149933 |
| N99.34 | N149934 |
| N99.35 | N149935 |
| N99.36 | N149936 |
| N99.37 | N149937 |
| N99.38 | N149938 |
| N99.39 | N149939 |
| N99.40 | N149940 |
| N99.41 | N149941 |
| N99.42 | N149942 |
| N99.43 | N149943 |
| N99.44 | N149944 |
| N99.45 | N149945 |
| N99.46 | N149946 |
| N99.47 | N149947 |
| N99.48 | N149948 |
| N99.49 | N149949 |
| N99.50 | N149950 |
| N99.51 | N149951 |
| N99.52 | N149952 |
| N99.53 | N149953 |
| N99.54 | N149954 |
| N99.55 | N149955 |
| N99.56 | N149956 |
| N99.57 | N149957 |
| N99.58 | N149958 |
| N99.59 | N149959 |
| N99.60 | N149960 |
| N99.61 | N149961 |
| N99.62 | N149962 |
| N99.63 | N149963 |
| N99.64 | N149964 |
| N99.65 | N149965 |
| N99.66 | N149966 |
| N99.67 | N149967 |
| N99.68 | N149968 |
| N99.69 | N149969 |
| N99.70 | N149970 |
| N99.71 | N149971 |
| N99.72 | N149972 |
| N99.73 | N149973 |
| N99.74 | N149974 |
| N99.75 | N149975 |
| N99.76 | N149976 |
| N99.77 | N149977 |
| N99.78 | N149978 |
| N99.79 | N149979 |
| N99.80 | N149980 |
| N99.81 | N149981 |
| N99.82 | N149982 |
| N99.83 | N149983 |
| N99.84 | N149984 |
| N99.85 | N149985 |
| N99.86 | N149986 |
| N99.87 | N149987 |
| N99.88 | N149988 |
| N99.89 | N149989 |
| N99.90 | N149990 |
| N99.91 | N149991 |
| N99.92 | N149992 |
| N99.93 | N149993 |
| N99.94 | N149994 |
| N99.95 | N149995 |
| N99.96 | N149996 |
| N99.97 | N149997 |
| N99.98 | N149998 |
| N99.99 | N1499 |
| N99.0 | N1416 |
| N99.1 | N1417 |
| N99.2 | N1418 |
| N99.3 | N1419 |
| N99.4 | N1420 |
| N99.5 | N1421 |
| N99.6 | N1422 |
| N99.7 | N1423 |
| N99.8 | N1424 |
| N99.9 | N1425 |
| N990.0 | N161416 |
| N990.1 | N161417 |
| N990.2 | N161418 |
| N990.3 | N161419 |
| N990.4 | N161420 |
| N990.5 | N161421 |
| N990.6 | N161422 |
| N990.7 | N161423 |
| N990.8 | N161424 |
| N990.9 | N161425 |
| N991.0 | N171416 |
| N991.1 | N171417 |
| N991.2 | N171418 |
| N991.3 | N171419 |
| N991.4 | N171420 |
| N991.5 | N171421 |
| N991.6 | N171422 |
| N991.7 | N171423 |
| N991.8 | N171424 |
| N991.9 | N171425 |
| N992.0 | N181416 |
| N992.1 | N181417 |
| N992.2 | N181418 |
| N992.3 | N181419 |
| N992.4 | N181420 |
| N992.5 | N181421 |
| N992.6 | N181422 |
| N992.7 | N181423 |
| N992.8 | N181424 |
| N992.9 | N181425 |
| N993.0 | N191416 |
| N993.1 | N191417 |
| N993.2 | N191418 |
| N993.3 | N191419 |
| N993.4 | N191420 |
| N993.5 | N191421 |
| N993.6 | N191422 |
| N993.7 | N191423 |
| N993.8 | N191424 |
| N993.9 | N191425 |
| N994.0 | N201416 |
| N994.1 | N201417 |
| N994.2 | N201418 |
| N994.3 | N201419 |
| N994.4 | N201420 |
| N994.5 | N201421 |
| N994.6 | N201422 |
| N994.7 | N201423 |
| N994.8 | N201424 |
| N994.9 | N201425 |
| N995.0 | N211416 |
| N995.1 | N211417 |
| N995.2 | N211418 |
| N995.3 | N211419 |
| N995.4 | N211420 |
| N995.5 | N211421 |
| N995.6 | N211422 |
| N995.7 | N211423 |
| N995.8 | N211424 |
| N995.9 | N211425 |
| N996.0 | N221416 |
| N996.1 | N221417 |
| N996.2 | N221418 |
| N996.3 | N221419 |
| N996.4 | N221420 |
| N996.5 | N221421 |
| N996.6 | N221422 |
| N996.7 | N221423 |
| N996.8 | N221424 |
| N996.9 | N221425 |
| N997.0 | N231416 |
| N997.1 | N231417 |
| N997.2 | N231418 |
| N997.3 | N231419 |
| N997.4 | N231420 |
| N997.5 | N231421 |
| N997.6 | N231422 |
| N997.7 | N231423 |
| N997.8 | N231424 |
| N997.9 | N231425 |
| N998.0 | N241416 |
| N998.1 | N241417 |
| N998.2 | N241418 |
| N998.3 | N241419 |
| N998.4 | N241420 |
| N998.5 | N241421 |
| N998.6 | N241422 |
| N998.7 | N241423 |
| N998.8 | N241424 |
| N998.9 | N241425 |
| N999.0 | N251416 |
| N999.1 | N251417 |
| N999.2 | N251418 |
| N999.3 | N251419 |
| N999.4 | N251420 |
| N999.5 | N251421 |
| N999.6 | N251422 |
| N999.7 | N251423 |
| N999.8 | N251424 |
| N999.9 | N251425 |
Hi, I have exactly the same issue with version 3.0.3 in .NET 8, generating a Code128 barcode. When I generate a barcode with this text 'V991R-NEUTRA-SPE023-YD433' the generated barcode is readable, but the read value is: 'V1750134637535250331351483799023-YD433'. I can also confirm the setting a CODE128B results in the right value decoded. My code is very similar to the one reported by @MarredCheese (many thanks for all your tests)
This is interesting. I just tested the java version of this lib and it doesnt have this issue. Let me try the .NET verison.
I confirm the same problem, and indeed "99" appears to be the key. For the message ^750-993/1 it generated barcode with 750-191517 , although the label read ^750-993/1. This is version 3.1.1 and all previous since 3. Version 2.4.0 generated it correctly. .Net Framework 4.8.1
I think this will fix the issue here. The issue was related to when it was trying to switch code types. PR here: https://github.com/barnhill/barcodelib/pull/205