YAML (YAML Ain't Markup Language) is a lightweight text-based data standard for describing structured data.

As a human-readable format, it offers an alternative to explicitly tagged structured data such as XML. The JSON format is a subset of YAML 1.2.

The YAML package provides tools for parsing and generating YAML expressions.

The general-purpose commands Import and Export also support this format.

$\mathrm{YAML}:-\mathrm{ParseString}\left(''[1,\; 2,\; 3.265,\; 6.01,\; 7.373]''\right)$

$\left[1\,2\,3.265\,6.01\,7.373\right]$

$\mathrm{Import}\left(''example/address.yaml''\,\mathrm{base}\=\mathrm{datadir}\right)$

$table\left(\left[''phoneNumbers''=\left[table\left(\left[''number''=''+1\; (519)\; 747-2373''\,''type''=''local''\right]\right)\,table\left(\left[''number''=''+1\; (800)\; 267-6583''\,''type''=''toll-free''\right]\right)\,table\left(\left[''number''=''+1\; (519)\; 747-5284''\,''type''=''fax''\right]\right)\right]\,''founded''=1988\,''companyName''=''Maplesoft''\,''address''=table\left(\left[''city''=''Waterloo''\,''postalCode''=''N2V\; 1K8''\,''province''=''ON''\,''country''=''Canada''\,''streetAddress''=''615\; Kumpf\; Drive''\right]\right)\right]\right)$

$\mathrm{Mouse}≔\mathrm{table}\left(\left[''Genus''\=''Mus''\,''Species''\=''musculus''\right]\right)$

$\mathrm{Mouse}≔table\left(\left[''Species''=''musculus''\,''Genus''=''Mus''\right]\right)$

${\mathrm{Mouse}}_{''Family''}≔''Muridae''$

${\mathrm{Mouse}}_{''Family''}≔''Muridae''$

${\mathrm{Mouse}}_{''Order''}≔''Rodentia''$

${\mathrm{Mouse}}_{''Order''}≔''Rodentia''$

${\mathrm{Mouse}}_{''Class''}≔''Mammalia''$

${\mathrm{Mouse}}_{''Class''}≔''Mammalia''$

$\mathrm{Export}\left(''mouse.yaml''\,\mathrm{Mouse}\,\mathrm{base}\=\mathrm{homedir}\right)$

$80$

YAML 1.2 Language Specification, http://www.yaml.org/spec/1.2/spec.html, yaml.org.