Typst Fumadocs

YAML

Documentation for the `yaml` function.

Reads structured data from a YAML file.

The file must contain a valid YAML object or array. The YAML values will be converted into corresponding Typst values as listed in the table below.

The function returns a dictionary, an array or, depending on the YAML file, another YAML data type.

The YAML files in the example contain objects with authors as keys, each with a sequence of their own submapping with the keys "title" and "published".

Example

Loading compiler...

Conversion details

YAML valueConverted into Typst
null-values (null, ~ or empty {:typst})none
booleanbool
numberfloat or int
stringstr
sequencearray
mappingdictionary
Typst valueConverted into YAML
types that can be converted from YAMLcorresponding YAML value
bytesstring via repr
symbolstring
contenta mapping describing the content
other types (length, etc.)string via repr

Notes

  • In most cases, YAML numbers will be converted to floats or integers depending on whether they are whole numbers. However, be aware that integers larger than 263-1 or smaller than -263 will be converted to floating-point numbers, which may result in an approximative value.
  • Custom YAML tags are ignored, though the loaded value will still be present.
  • Bytes are not encoded as YAML sequences for performance and readability reasons. Consider using cbor.encode for binary data.
  • The repr function is for debugging purposes only, and its output is not guaranteed to be stable across Typst versions.
#yaml(
  source
) -> any

Parameters

Prop

Type

Definitions

Reads structured data from a YAML string/bytes.

#yaml.decode(
  data
) -> any

Parameters

Prop

Type

Encode structured data into a YAML string.

#yaml.encode(
  value
) -> str

Parameters

Prop

Type

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