yq/pkg/yqlib/doc/operators/headers/encode-decode.md

Encoder / Decoder

Encode operators will take the piped in object structure and encode it as a string in the desired format. The decode operators do the opposite, they take a formatted string and decode it into the relevant object structure.

Note that you can optionally pass an indent value to the encode functions (see below).

These operators are useful to process yaml documents that have stringified embedded yaml/json/props in them.

Format	Decode (from string)	Encode (to string)
Yaml	from_yaml	to_yaml(i)/@yaml
JSON	from_json	to_json(i)/@json
Properties	from_props/@propsd	to_props/@props
CSV	from_csv/@csvd	to_csv/@csv
TSV	from_tsv/@tsvd	to_tsv/@tsv
XML	from_xml	to_xml(i)/@xml
Base64	@base64d	@base64

See CSV and TSV documentation for accepted formats.

XML uses the --xml-attribute-prefix and xml-content-name flags to identify attributes and content fields.

Base64 assumes rfc4648 encoding. Encoding and decoding both assume that the content is a string.