Parsers for common NFC tag payloads and QR/barcode content.
Takes a raw string from an NFC tag read or barcode scan and returns a
structured map with :type and :value fields.
Supported formats
| Type | Example raw input | :value shape |
|---|---|---|
:url | https://example.com | String.t() |
:wifi | WIFI:T:WPA;S:MyNet;P:pass;H:true;; | %{ssid, password, security, hidden} |
:email | mailto:user@example.com | %{email, subject, body} |
:phone | tel:+1234567890 | %{number} |
:sms | smsto:+1234567890:hello | %{number, message} |
:geo | geo:37.78,-122.40?q=Golden+Gate | %{lat, lon, query, altitude} |
:vcard | BEGIN:VCARD...END:VCARD | %{name, phone, email, org, title, url, address} |
:vevent | BEGIN:VEVENT...END:VEVENT | %{summary, start, end, location, description} |
:text | Hello world | String.t() |
Usage
# Parse an NFC tag payload
Dala.Ui.Scan.parse("WIFI:T:WPA;S:MyNet;P:secret;;")
# => %{type: :wifi, value: %{ssid: "MyNet", password: "secret", security: :wpa, hidden: false}}
# Parse a QR code value
Dala.Ui.Scan.parse("https://example.com")
# => %{type: :url, value: "https://example.com"}
# Parse a vCard
Dala.Ui.Scan.parse("BEGIN:VCARD\nVERSION:3.0\nFN:John Doe\nTEL:+1234567890\nEND:VCARD")
# => %{type: :vcard, value: %{name: "John Doe", phone: "+1234567890", ...}}Summary
Functions
Parse a raw NFC/barcode string into a structured format.
Types
@type parsed() :: %{ type: :url | :wifi | :email | :phone | :sms | :geo | :vcard | :vevent | :text, value: term() }