Barcode
What a barcode encodes, by its symbology: a GS1 retail code, Code 128's printable ASCII or a QR code's ISO 8859-1 text. Shown as its data.
Commerce and logistics; not ordered; since Jadpo 0.1.0.
Make one
Pick one of its variants and give its fields, Barcode.ean13 { data: ... }.
Variants
Text, JSON and storage
It has no single text form, so text.from and text.parse don't take it. JSON sends an object of its variant's name, as tag, and the variant's fields.
| JSON |
|---|
{"tag":"ean13","data":"4006381333931"} |
{"tag":"upc_a","data":"036000291452"} |
{"tag":"code128","data":"CTN-0042"} |
{"tag":"qr_code","data":"https://example.com/a1"} |
It is stored in 2 columns, each named for the field, _ and its suffix. This is {"tag":"code128","data":"CTN-0042"}:
| Column | Type | Holds |
|---|---|---|
<field>_kind |
text |
'code128' |
<field>_data |
text |
'CTN-0042' |
Shown to people
text.format(value, locale:) shows it to people in their locale.
With locale: Locale.en_gb:
| Value | Shown |
|---|---|
{"tag":"ean13","data":"4006381333931"} |
4006381333931 |
{"tag":"upc_a","data":"036000291452"} |
036000291452 |
{"tag":"code128","data":"CTN-0042"} |
CTN-0042 |
{"tag":"qr_code","data":"https://example.com/a1"} |
https://example.com/a1 |
Operations
It has the contract's own operations: text.format, json.read, json.write and ==. It isn't ordered, so < and sorting don't take it. Every standard type meets one contract says how they work.
Markdown for agents: /docs/types/type-barcode.md.Built from Jadpo main at e00e61f.