Barcode Code49

Code49 barcode encode/decode implementation.

Reference: Barcode-Symbology-Specification-Code-49

Methods

Encode

• Encode(text string) (patterns []string, encodationPatterns [][]int, err error)

Encode a given text into Barcode patterns in Code 49.

Example

• params

overcontact binary

• returns

patterns []string
[
    "11143121314115211131114321124131314",
    "11221611211411251111225122311314214",
    "11123232212411212332131231332321114",
    "11251311211242114112215212413213114",
    "11123121511212521211113243422213114",
    "11224211311211313421211153141112154"
]

encodationPatterns [][]int
[
    [ 1220, 1563, 730, 1355 ],
    [ 2168, 2180, 2179, 2195 ],
    [ 1465, 534, 632, 1437 ],
    [ 1906, 583, 926, 1153 ],
    [ 2166, 2183, 2190, 2358 ],
    [ 2400, 73, 835, 1643 ]
]

DecodeRaw

• DecodeRaw(patterns []string) string

Decodes barcode patterns which contains multiple rows with scanned bar/space amounts, start with prefix 11 and end with suffix 4, returns raw text.

Example

• params

patterns []string
[
    "11143121314115211131114321124131314",
    "11221611211411251111225122311314214",
    "11123232212411212332131231332321114",
    "11251311211242114112215212413213114",
    "11123121511212521211113243422213114",
    "11224211311211313421211153141112154"
]

• returns

overcontact binary

Decode

• Decode(patterns []string, skipChecksum bool) string

Decodes barcode patterns which contains multiple rows with scanned bar/space amounts, start with prefix 11 and end with suffix 4, returns basic text. The basic text means that text decoded by this method contains checksum-mix-in characters.

It treads the Code49 as Mode-0, ignores other non-data characters.

If skipChecksum presents to true, Decode will ignore the last line of patterns.

Example

• params

patterns []string
[
    "11143121314115211131114321124131314",
    "11221611211411251111225122311314214",
    "11123232212411212332131231332321114",
    "11251311211242114112215212413213114",
    "11123121511212521211113243422213114",
    "11224211311211313421211153141112154"
]

• returns

result: 
  - skip checksum: oveRWCON$tacTG�biNQARY6
  - with checksum: oveRWCON$tacTG�biNQARY6\1OH2XQ