proposal(front_matter): fix file names and exports

[timreichen]

Is your feature request related to a problem? Please describe.

front_matters any.ts file does not export any() but extract(). Also, json.ts, toml.ts and yaml.ts all export a function called extract(). mod.ts on the other hand doesn't re-export any of these.

Describe the solution you'd like

I propose to do the following changes to have them behave more like other std implementations:

• rename any.ts to extract.ts
• rename json.ts to extract_json.ts and extract() to extractJson()
• rename toml.ts to extract_toml.ts and extract() to extractToml()
• rename yaml.ts to extract_yaml.ts and extract() to extractYaml()

Describe alternatives you've considered

Leave as is.

[iuioiua]

+1

[timreichen]

@iuioiua I wonder now, if parse*() would make more sense, because the frontmatter data is not just extracted but parsed as well.

[iuioiua]

Yeah, maybe. Other opinions are welcome.

[gabelluardo]

+1 for parse I think it's more correct and intuitive

[iuioiua]

I've thought about this further, and parse() might be as equally misleading as extract(), as the function extracts and then parses the front matter metadata. So perhaps the function names should be something like extractAndParseJson(), etc. I'm happy to hear other opinions.