t is a single Jekyll-format post that has been parsed

fields represents the YAML front matter in the blog post

body represents the blog post content, probably in Markdown format

fields t retrieves the YAML front matter fields from the blog post

fields_to_yaml fs converts fs to a Yaml.value

body t retrieves the blog post content from the blog post

find key t retrieves the first key from the YAML front matter, and None if the key is not present. Keys are case-sensitive as per the YAML specification. Whitespace is trimmed around the field value.

keys f retrieves all of the key names in the YAML front matter.

title ?fname f will query the title from the YAML metadata, and fallback to parsing the optional fname filename of the post if no explicit key is found. If nothing works then None is returned.

title_exn ?fname f operates as title except that it raises a Parse_failure exception on error.

date ?fname f will query the post date from the YAML metadata, and fallback to parsing the optional fname filename of the post if no explicit key is found.

date_exn ?fname f operates as date except that it raises a Parse_failure in the error case.

slug ?fname f will query the slug name from the YAML metadata, or calculate it from the filename if no explicit slug field is set, and finally fallback to parsing the title of the post if nothing else is found. The slug is calculated using slug_of_string.

slug_exn ?fname f operates as slug except that it raises a Parse_failure in the error case.

of_string t parses a Jekyll-format blog post and either returns a t or signals an error in the result.

of_string_exn t parses a Jekyll-format blog post and either returns a t or raises a Parse_failure exception with the error string.

slug_of_string s replaces all non-ascii characters (a..zA..Z0..9) with the - hyphen character. The result is also lowercase.

parse_filename f parses a Jekyll format filename YEAR-MONTH-DAY-title.MARKUP and returns the time, title and markup components respectively. If the time could not be parsed, then the header is assumed to be the title and None is returned for the time.

parse_filename_exn f operates as parse_filename except that it raises a Parse_failure in the error case.

parse_date ?and_time s parses a Jekyll format date field in YYYY-MM-DD HH:MM:SS +/-TT:TT format, where the HMS and timezone components are optional. and_time defaults to true and causes the non-date components to be parsed; setting it to false only causes the YMD portions to be parsed.

parse_date_exn ?and_time s operates as parse_date except that it raises a Parse_failure in the error case.

Exception raised on parse failure by the _exn functions in this module. The argument is a human-readable error message.

pp t prints out the blog post and YAML front matter, using pp_fields and pp_body respectively.

pp_body body prints out the blog post body in the original layout.

pp_fields f prints out the YAML front matter in the original layout.