Editing PDF Table Parsing (section)

=== 2. Section Detection Requires Cross-Page State ===

Section, subsection, and table category information in PDF documents may not be repeated on every page. Therefore, the parser needs to preserve the current <code>section</code>, <code>subsection</code>, or other document-level context and reuse it on subsequent pages.

Common scenarios include:

* Continuation pages may contain only table content without repeating the section title.
* Table of contents, summary, or explanatory pages may contain multiple section names at once. If the parser only checks whether a page contains certain keywords, it may misclassify the page.
* Section titles may use different punctuation or spacing due to layout variations, such as full-width or half-width parentheses, enumeration marks, colons, full-width periods, or extra spaces.
* When switching sections, subsections, or table types, inherited state from the previous table must be cleared to prevent data from being incorrectly carried over into the next block.

A recommended approach is to determine sections using a combination of text position, title patterns, and contextual state, rather than relying only on keyword matching across the entire page.