Support writing frontmatter in multiple formats. #933
Merged
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- Summary
Right now we can read TOML or JSON frontmatter by inferring, but we can only write frontmatter in YAML. This change allows the frontmatter format to be explicitly set for reading and writing.
The
format
options are:frontmatter
(default): Infer frontmatter format if possible, write to YAML.json-frontmatter
: Read and write JSON frontmatter ({
}
delims), ignore other formats.toml-frontmatter
: Read and write TOML frontmatter (+++
delims), ignore other formats.yaml-frontmatter
: Read and write YAML frontmatter (---
delims), ignore other formats.For now, we do not support custom delimiters, we use
---
for YAML,+++
for TOML, and{
}
for JSON. If a frontmatter format is explicitly specified, and there is frontmatter inside other delimiters, the frontmatter will be ignored, and it will be included as part of the body text.Closes #563.
- Test plan
- Description for the changelog
Support writing frontmatter in multiple formats.
- A picture of a cute animal (not mandatory but encouraged)