Awesome Open Source
Awesome Open Source

receiptline

Printable digital receipts 🧾

Transform markdown-like text to receipt printer commands or SVG images.

English
Japanese
German

Features

The reference implementation of the OFSC ReceiptLine Specification.
http://www.ofsc.or.jp/receiptline/en/

ReceiptLine is the receipt description language that expresses the output image of small roll paper.
It supports printing paper receipts using a receipt printer and displaying electronic receipts on a POS system or smartphone.
It can be described simply with markdown-like text data that does not depend on the paper width.

This reference implementation also provides the development tool "ReceiptLine Designer" for editing, previewing, hex dumps with a virtual printer, and test printing on receipt printers.

Receipt Printers

  • Epson TM series
  • SII RP series
  • Star MC series
  • Citizen CT series
  • Fujitsu FP series

Printers

Installation

$ npm install receiptline

Usage

receiptline.transform() method transforms ReceiptLine document to printer commands or SVG images.

const receiptline = require('receiptline');

const doc = '{code:2012345678903;option:ean,hri}';

// printer example
const printer = {
    cpl: 42,
    encoding: 'cp437',
    upsideDown: false,
    gamma: 1.8,
    command: 'escpos'
};
const command = receiptline.transform(doc, printer);

// display example
const display = {
    cpl: 42,
    encoding: 'cp437'
};
const svg = receiptline.transform(doc, display);

Method

receiptline.transform(doc, printer)

Parameters

  • doc
    • a string of ReceiptLine document
  • printer
    • an object of printer configuration

Return value

  • printer commands or SVG images

Printer configuration

  • cpl
    • characters per line (default: 48)
  • encoding
    • cp437: United States (default)
    • cp852: Central European
    • cp858: Western European
    • cp860: Portuguese
    • cp863: French Canadian
    • cp865: Nordic
    • cp866: Cyrillic
    • cp1252: Western European
    • cp932: Japanese
    • shiftjis: Japanese
    • cp936: Simplified Chinese
    • gb18030: Simplified Chinese
    • cp949: Korean
    • ksc5601: Korean
    • cp950: Traditional Chinese
    • big5: Traditional Chinese
  • gradient (for printer)
    • false: image processing for text, barcodes, and 2D codes
    • true: image processing for photos (default)
  • gamma (for printer)
    • image gamma correction (range: 0.1 - 10.0, default: 1.8)
  • threshold (for printer)
    • image thresholding (range: 0 - 255, default: 128)
  • upsideDown (for printer)
    • false: normal (default)
    • true: upside down
  • spacing
    • false: no line spacing (default)
    • true: line spacing
  • cutting (for printer)
    • false: no paper cutting
    • true: paper cutting (default)
  • command
    • svg: SVG (default)
    • escpos: ESC/POS (Epson)
    • sii: ESC/POS (SII)
    • citizen: ESC/POS (Citizen)
    • fit: ESC/POS (Fujitsu)
    • impact: ESC/POS (TM-U220)
    • impactb: ESC/POS (TM-U220 Font B)
    • starsbcs: StarPRNT (SBCS)
    • starmbcs: StarPRNT (Japanese)
    • starmbcs2: StarPRNT (Chinese, Korean)
    • starlinesbcs: Star Line Mode (SBCS)
    • starlinembcs: Star Line Mode (Japanese)
    • starlinembcs2: Star Line Mode (Chinsese, Korean)
    • emustarlinesbcs: Command Emulator Star Line Mode (SBCS)
    • emustarlinembcs: Command Emulator Star Line Mode (Japanese)
    • emustarlinembcs2: Command Emulator Star Line Mode (Chinsese, Korean)
    • stargraphic: Star Graphic Mode (TSP100LAN)

Examples

example/receipt/*

Display digital receipts in the web browser and print paper receipts on the printer as needed.

example/cloud/*

Print order slips from cloud server using Epson Server Direct Print or Star CloudPRNT.

example/nodejs/*

Enter markdown-like text from the web form, transform it to printer commands on the server, and print it out.

example/js/*

Enter markdown-like text from the web form, transform it to SVG images on the web browser, and display it.

example/data/*

The documents (markdown-like text) are the same as the examples in the OFSC ReceiptLine Specification.

Libraries

lib/receiptline.js

JavaScript ES2015(ES6) version. It works on both web browser and Node.js.
To output printer commands on a web browser, use Browserify.

$ browserify -o receiptline-full.js receiptline.js

lib/qrcode-generator/qrcode.js

Generate the QR Code for display. Optional.

ReceiptLine Designer

Online version is available.
https://receiptline.github.io/designer/

The ReceiptLine Designer provides more features.

  • Edit and preview
  • Data transmission via TCP socket
  • Hex dump view by listening TCP 19100 port

Designer

Setup

  1. Start the server

    $ cd node_modules/receiptline
    $ npm start
    
  2. Open http://localhost:8080

    Use a modern browser.

  3. Configure printers.json

    "printer_id": {
        "host": "127.0.0.1",
        "port": 19100,
        "asImage": false,
        "cpl": 48,
        "encoding": "cp932",
        "gradient": true,
        "gamma": 1.8,
        "threshold": 128,
        "upsideDown": false,
        "spacing": true,
        "cutting": true,
        "command": "escpos"
    }
    
    • printer_id
      • printer identifier (alphanumeric or underscore characters)
    • host
      • printer address
    • port
      • printer port (will be 9100)
    • asImage
      • false: print with device font (default)
      • true: print as image (Requires convert-svg-to-png)
    • cpl, encoding, gradient, gamma, threshold, upsideDown, spacing, cutting, command
      • see the printer configuration above

    Please back up this json file as it will be initialized by updating the package.

Serial-LAN Converter

The serial-LAN converter enables test printing to USB / Bluetooth printers that support virtual serial ports.

Setup

  1. Install the virtual serial port driver for the printer and Node Serialport

    $ npm install serialport
    $ cd node_modules/receiptline
    
  2. Configure servers.json

    "serial": {
        "host": "127.0.0.1",
        "port": 9100,
        "device": "COM9"
    }
    
    • serial
      • to enable it, change from _serial
    • host
      • local address
    • port
      • local port
    • device
      • the system path of the serial port

    Please back up this json file as it will be initialized by updating the package.

  3. Restart the server

    $ npm start
    

Syntax

Railroad diagram

document
document

line
line

columns
columns

column
column

text
text

char
char

escape
escape

ws (whitespace)
ws

property
property

member
member

key
key

value
value

Grammar

Structure

The receipt is made of a table, which separates each column with a pipe |.

Line Content Description
column
| column |
| column
column |
Text
Property
Single column
column | column
| column | column |
| column | column
column | column |
Text Double column
column | ... | column
| column | ... | column |
| column | ... | column
column | ... | column |
Text Multiple columns

Alignment

The column is attracted to the pipe | like a magnet.
means one or more whitespaces.

Column Description
column
|column|
|␣column␣|
Center
|column
|column␣|
column␣|
Left
column|
|␣column|
|␣column
Right

Text

The text is valid for any column.

Asparagus | 0.99
Broccoli | 1.99
Carrot | 2.99
---
^TOTAL | ^5.97

Characters are printed in a monospace font (12 x 24 px).
Wide characters are twice as wide as Latin characters (24 x 24 px).
Control characters are ignored.

Special characters in text

Special characters are assigned to characters that are rarely used in the receipt.

Special character Description
\ Character escape
| Column delimiter
{ Property delimiter (Start)
} Property delimiter (End)
- (1 or more, exclusive) Horizontal rule
= (1 or more, exclusive) Paper cut
~ Space
_ Underline
" Emphasis
` Invert
^ Double width
^^ Double height
^^^ 2x size
^^^^ 3x size
^^^^^ 4x size
^^^^^^ 5x size
^^^^^^^ (7 or more) 6x size

Escape sequences in text

Escape special characters.

Escape sequence Description
\\ \
\| |
\{ {
\} }
\- - (Cancel horizontal rule)
\= = (Cancel paper cut)
\~ ~
\_ _
\" _
\` `
\^ ^
\n Wrap text manually
\xnn Hexadecimal character code
\char (Others) Ignore

Properties

The property is valid for lines with a single column.

{ width: * 10; comment: the column width is specified in characters }
Key Abbreviation Value Case-sensitive Default Saved Description
image i base64 png format - - Image
(Recommended: monochrome, critical chunks only)
code c textdata - - Barcode / 2D code
option o see below - code128 2 72 nohri 3 l Barcode / 2D code options
(Options are separated by commas or one or more whitespaces)
align a left
center
right
- center Line alignment
(Valid when line width < CPL)
width w auto
*
0 -
- auto
(* for all columns)
Column widths (chars)
(Widths are separated by commas or one or more whitespaces)
border b line
space
none
0 - 2
- space Column border (chars)
(Border width: line=1, space=1, none=0)
text t wrap
nowrap
- wrap Text wrapping
command x textdata - - Device-specific commands
comment _ textdata - - Comment

Barcode options

Barcode options are separated by commas or one or more whitespaces.

Barcode option Description
upc UPC-A, UPC-E
(Check digit can be omitted)
ean
jan
EAN-13, EAN-8
(Check digit can be omitted)
code39 CODE39
itf Interleaved 2 of 5
codabar
nw7
Codabar (NW-7)
code93 CODE93
code128 CODE128
2 - 4 Barcode module width (px)
24 - 240 Barcode module height (px)
hri With human readable interpretation
nohri Without human readable interpretation

2D code options

2D code options are separated by commas or one or more whitespaces.

2D code option Description
qrcode QR Code
3 - 8 Cell size (px)
l
m
q
h
Error correction level

Special characters in property values

Special characters in property values are different from special characters in text.

Special character Description
\ Character escape
| Column delimiter
{ Property delimiter (Start)
} Property delimiter (End)
: Key-value separator
; Key-value delimiter

Escape sequences in property values

Escape special characters.

Escape sequence Description
\\ \
\| |
\{ {
\} }
\; ;
\n New line
\xnn Hexadecimal character code
\char (Others) Ignore

Restrictions

  • Communication with the printer, status event processing, and error handling are out of scope.
  • SVG images depend on the font family installed on the computer and may not display properly.
  • The QR code for display is encoded in UTF-8, while the QR code for printing is encoded in ASCII or Shift_JIS.
  • Impact printer has some limitations for printing.
    • Characters larger than 2x size
    • Inverted characters (will be printed in red)
    • Double height characters in different colors on the same line
    • Multibyte characters
    • Image position and size ratio
    • Barcodes and 2D codes
  • Star Graphic Mode printing only supports images, line feeds, and paper cuts.

Author

Open Foodservice System Consortium
http://www.ofsc.or.jp/

License

  • receiptline
    • Apache License, Version 2.0
  • QR Code Generator for JavaScript with UTF8 Support
    • MIT License

Get A Weekly Email With Trending Projects For These Topics
No Spam. Unsubscribe easily at any time.
Javascript (1,555,308
Markdown (6,636
Svg (3,166
Star (646
Invoice (375
Pos (338
Printer (319
Ticket (251
Related Projects