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🖨️ esc/pos implementation in gleam
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docs: update readme
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README.md
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README.md
···
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gleam add escpos@1
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```
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## Usage
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### Declarative API
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The `escpos/document` module provides a high-level declarative API:
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```gleam
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import escpos
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import escpos/document.{bold, cut, justify, styled, writeln, Center}
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import escpos/printer
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pub fn main() {
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let assert Ok(printer) = printer.connect("192.168.1.100", 9100)
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document.build([
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styled([justify(Center), bold()], [
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writeln("Receipt"),
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]),
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writeln("Item 1 ... $5.00"),
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writeln("Item 2 ... $3.50"),
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cut(),
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])
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|> printer.print(printer)
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}
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```
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### Imperative API
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pub fn main() -> Nil {
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// TODO: An example of the project in use
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The `escpos` module provides a lower-level builder-style API:
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```gleam
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import escpos.{Center, Left}
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import escpos/printer
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pub fn main() {
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let assert Ok(printer) = printer.connect("192.168.1.100", 9100)
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escpos.new()
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|> escpos.reset()
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|> escpos.set_align(Center)
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|> escpos.set_bold(True)
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|> escpos.writeln("Receipt")
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|> escpos.set_bold(False)
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|> escpos.set_align(Left)
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|> escpos.writeln("Item 1 ... $5.00")
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|> escpos.writeln("Item 2 ... $3.50")
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|> escpos.line_feed(3)
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|> escpos.cut()
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|> printer.print(printer)
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}
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```
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