| Value | Description |
|---|
none | No structuring operations |
all | All structuring operations |
sections-to-keywords | Extract keywords from the "Keywords" section |
sections-to-abstract | Extract abstract from the "Abstract" section |
sections-to-references | Extract references from "References" section |
headings-to-title | Extract document title from the first heading |
heading1-to-title | Extract document title from the very first level 1 heading |
heading1-to-title-single | Extract document title from a single level 1 heading (conservative) |
headings-decrement | Decrement all heading levels by 1 (H2→H1, H3→H2, etc.) |
headings-primary-level1 | Ensure that all "primary" headings have level 1 |
headings-to-sections | Create a section for each heading |
headings-to-paragraphs | Transform headings to paragraphs if appropriate |
paragraphs-to-keywords | Extract keywords from paragraphs starting with "Keywords" |
paragraphs-to-headings | Transform paragraphs to headings if appropriate |
paragraphs-to-sentences | Split paragraphs into individual sentences |
figures-with-captions | Combine an image with a figure caption before or after it |
tables-with-captions | Combine a table caption with the following table or datatable |
table-images-to-rows | Convert table images to table rows using OCR |
tables-to-datatables | Transform tables into datatables if possible |
unwrap-media-objects | Unwrap media objects from paragraphs to block level |
unwrap-quote-blocks | Unwrap quote blocks containing more than two child blocks |
text-to-citations | Convert text to structured citations |
text-to-links | Convert URL text to structured links |
math-to-citations | Convert math to structured citations |
math-images-to-tex | Convert math images to TeX code using OCR |
links-to-citations | Convert links to citations |
normalize-citations | Normalize citation formatting and grouping |
remove-pre-primary | Remove content before the first primary heading |
remove-frontmatter-duplicates | Remove front matter that duplicates article metadata |
remove-empty-headings | Remove empty headings |
remove-empty-tables | Remove empty tables and datatables |
remove-empty-lists | Remove empty lists |
remove-empty-paragraphs | Remove empty paragraphs |
remove-empty-text | Remove empty text |