Mintmark

Driver for an Epson TM-U220B receipt printer, taking Markdown as input.

Usage

target/debug/mintmark /dev/usb/lp0 < input.md

Features

• 6 distinct heading types, all centered
• Bold, rendered as double-strike
• Italic, rendered as underline
• Ordered and unordered lists
• Inline code and code blocks, rendered as red by default. Style modifiers are specified with the text language identifier and one or more space-separated keywords: black, bold, doubleheight, doublewidth, strikethrough, underline, wide
• Strikethrough
• Blockquotes, rendered as indent
• Horizontal rules, rendered by cutting the paper
• Arbitrary 1-bit images, specified as ASCII art in code blocks with the bitmap language identifier. Supported keywords: bold
• Images in plain PNM format, specified as code blocks with the image language identifier
• Images in JPEG, PNG, WebP, or raw PNM format, specified as base64-encoded images in code blocks with the image base64 language identifier. JPEG and PNG require the jpeg and png features, respectively, which are enabled by default.
• QR codes, specified as code blocks with the qrcode language identifier. Supported keywords: base64, bold
• Code128 code set B barcodes, specified as code blocks with the code128 language identifier. Supported keywords: bold

Image features

• Red/black can be used with the bicolor keyword, e.g. image base64 bicolor

Missing and non-features

• Paper widths other than 3" (#6)
• Images (rendered as the alt text)
• Links (rendered as the link text)
• Tables
• Footnotes
• Definition lists
• Task lists (#8)