What It YAML
YAML is a human-friendly data serialization
language for all programming languages. — What It Is:
設定ファイルなどにも使われる
拡張子
主に
- .yaml
- .yml
但し、可能な限り .yaml 形式が推奨されている。
Is there an official extension for YAML files?
Please use “.yaml” when possible. — FAQ
YAMLでTabを使用し何度も失敗した話
設定ファイルを読み込ませる際に何度もエラーが出た。
確認してみるとtabに関するエラーだった。
結論
- Why does YAML forbid tabs?
Tabs have been outlawed since they are treated differently by different editors and tools. And since indentation is so critical to proper interpretation of YAML, this issue is just too tricky to even attempt. Indeed Guido van Rossum of Python has acknowledged that allowing TABs in Python source is a headache for many people and that were he to design Python again, he would forbid them.
— FAQ
YAMLファイルでTabを使うのではなくSpaceを使う。