### Typst Variable Substitution Syntax Example

Source: https://hexdocs.pm/imprintor

Demonstrates Typst's syntax for accessing nested data structures within templates, using `sys.inputs.elixir_data`.

```typst
= Customer Report

*Name:* #sys.inputs.elixir_data.customer.name
*Email:* #sys.inputs.elixir_data.customer.email

== Orders
#for order in sys.inputs.elixir_data.orders [
  - #order.product: \$#order.total
]
```

--------------------------------

### Basic PDF Generation with Imprintor

Source: https://hexdocs.pm/imprintor

Generate a simple PDF from a Typst template with basic data. Ensure the template and data are correctly defined before compilation.

```elixir
# Define a Typst template with data access
template = """
= Hello #elixir_data.name!

*Date:* #elixir_data.date

This is a sample document generated using Imprintor.

== Details

Here are some details:
- *Name:* #sys.inputs.elixir_data.name
- *Email:* #sys.inputs.elixir_data.email
- *Age:* #sys.inputs.elixir_data.age

Thanks for using Imprintor!
"""

# Provide data to fill the template
data = %{
  "name" => "John Doe",
  "date" => "2024-01-15",
  "email" => "john@example.com",
  "age" => 30
}

# Create a configuration and generate PDF
config = Imprintor.Config.new(template, data)
{:ok, pdf_binary} = Imprintor.compile_to_pdf(config)

# Save to file
File.write!("output.pdf", pdf_binary)
```

--------------------------------

### Using Tagged Bytes for pdf.attach in Typst

Source: https://hexdocs.pm/imprintor

Attach binary data, such as XML files for standards like Factur-X, to a PDF using the `pdf.attach` function in Typst. Use `Imprintor.bytes/1` to correctly format binary data.

```elixir
template = """
#set document(date: datetime.today())

#pdf.attach(
  "factur-x.xml",
  sys.inputs.elixir_data.factur_x_xml,
  relationship: "alternative",
  mime-type: "application/xml",
  description: "Factur-X XML",
)

= Invoice
"""

data = %{
  "factur_x_xml" => Imprintor.bytes("<xml>...</xml>")
}

config = Imprintor.Config.new(template, data, pdf_standard: "a-3a")
{:ok, pdf_binary} = Imprintor.compile_to_pdf(config)
```

--------------------------------

### Working with Complex Data and Iteration in Typst Templates

Source: https://hexdocs.pm/imprintor

Generate a PDF using a Typst template that iterates over a complex, nested data structure. This is useful for generating lists or directories from dynamic data.

```elixir
# Template with data iteration using elixir_data
template = """
= Employee Directory

#for employee in sys.inputs.elixir_data.employees [
  == #employee.name

  *Position:* #employee.position
  *Department:* #employee.department
  *Email:* #employee.email

  ---
]
"""

# Complex nested data structure
data = %{
  "employees" => [
    %{ "name" => "Alice Johnson", "position" => "Software Engineer", "department" => "Engineering", "email" => "alice@company.com" },
    %{ "name" => "Bob Smith", "position" => "Product Manager", "department" => "Product", "email" => "bob@company.com" }
  ]
}

config = Imprintor.Config.new(template, data)
{:ok, pdf_binary} = Imprintor.compile_to_pdf(config)
File.write!("employee_directory.pdf", pdf_binary)
```

--------------------------------

### Add Imprintor to Mix Dependencies

Source: https://hexdocs.pm/imprintor

Add the Imprintor library to your project's dependencies in the mix.exs file.

```elixir
def deps do
  [
    {:imprintor, "~> 0.1.0"}
  ]
end
```

--------------------------------

### Setting PDF Standard Option in Imprintor

Source: https://hexdocs.pm/imprintor

Configure Imprintor to generate PDFs adhering to specific PDF standards, such as 'a-3a'. This is crucial for compliance with certain document requirements.

```elixir
template = """
#set document(date: datetime.today())
= Invoice
"""

config = Imprintor.Config.new(template, %{}, pdf_standard: "a-3a")
{:ok, pdf_binary} = Imprintor.compile_to_pdf(config)
```

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