%YAML 1.1 --- - name: spec-10-13 yaml: | ? explicit key # implicit value ? | block key : - one # explicit in-line - two # block value tree: | +STR +DOC +MAP =VAL :explicit key =VAL : =VAL |block key\n +SEQ =VAL :one =VAL :two -SEQ -MAP -DOC -STR - name: spec-10-13-canonical yaml: | %YAML 1.1 --- !!map { ? !!str "explicit key" : !!null "", ? !!str "block key\n" : !!seq [ !!str "one", !!str "two", ] } tree: | +STR +DOC --- +MAP {} =VAL "explicit key =VAL " =VAL "block key\n +SEQ [] =VAL "one =VAL "two -SEQ -MAP -DOC -STR